Acer LCD A211H, A221HQ Service manual

ACER_LCD_A211H/A221HQ_SM20100512V1

Model ID: RG215AC-CAU-AN02

ACER A211H/A221HQ

ACER_LCD_A211H/A221HQ_SM20100512V1

Important Safety Notice

ACER A211H/A221HQ

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3

1

This product is certificated to meet RoHS Directive and

Lead-Free produced definition. Using approved critical

components only is recommended when the situation

to replace defective parts. Vender assumes no liability

express or implied, arising out of any unauthorized

modification of design or replacing non-RoHS parts.

Service providers assume all liability.

Qualified Repairability:

Proper service and repair is important to the safe,

reliable operation of all series products. The service

providers recommended by vender should being

aware of notices listed in this service manual in order

to minimize the risk of personal injury when perform

service procedures. Furthermore, the possible existed

improper repairing method may damage equipment or

!

Using Lead-Free solder to well mounted the parts.

! The fusion point of Lead-Free solder requested in the

degree of 220° C.

products. It is recommended that service engineers

should have repairing knowledge, experience, as well

as appropriate product training per new model before

performing the service procedures.

NOTICE:

! To avoid electrical shocks, the products should be

connect to an authorized power cord, and turn off the

master power switch each time before removing the

AC power cord.

! To prevent the product away from water or explosed

in extremely high humility environment.

! To ensure the continued reliability of this product,

use only original manufacturer’s specified parts.

! To ensure following safety repairing behavior, put the

replaced part on the components side of PWBA, not

solder side.

! To ensure using a proper screwdriver, follow the

torque and force listed in assembly and disassembly

procedures to screw and unscrew screws.

LCD Flat Panel

Interface Board

Flat Panel Controller,DDC

Power Board AC to DC Adapter DC to AC Inverter

Audio

AMP

(Option)

AC-IN

1W*2 Speaker (Option)

Audio Source Host Computer

Function Key

Board

CCFL

Panel data & control. DC power

Speaker line input

DC 5V

Audio line input

Video Signal input& DDC

Function key input

Display Area

21.5” diagonal

476.64mm(H)x268.11mm(V)

Resolution 1920 x 1080 pixels

Display Color Number 16.7M colors(6bit Hi FRC)

Display Type a-Si TFT active-matrix

Contrast Ratio 1000 : 1 typ.

Brightness 250cd/m2 typ.

Response Time (Ton + Toff) 5 ms typ.

Pixel Pitch 0.248mm(H) x 0.248mm(W)

Vertical Viewing 160 degrees typ, CR>10

Horizontal Viewing 170 degrees typ, CR>10

SPEC

H 31kHz ~ 82kHz

V 56Hz ~ 75Hz

Max Pixel clock 210MHz

Video input 0.7Vp-p

RGB Input Impedance 75Ù

Sync Input Signal Separate SYNC, Composite Sync

Sync Input Impedance 2.4KÙ(1A1D1H), 50Ù(1A1D/1A)

H 31kHz ~82kHz

V 56Hz ~ 75Hz

Max Pixel clock 165MHz

Input Level 150mV<=Vp-p<=1560mV

Input Impedance Input Impedance 100Ù per pair

AC power

AC 100V ~ AC 240V ± 10% 50/60Hz,

3 pin AC power cord

Input connectors

D-SUB 15pin, DVI-D 24pin, HDMI

19pin

Audio Jack ( OPTIONAL) Audio input 3.5Ö

AC IN 100~240V

Normal Operation

Power Saving < 1W

Power Off < 1W (90VAC~264VAC)

User’s Control Front Panel Buttons Right, Left, MENU, AUTO,E,Power

Preset Timing 13

User’s Timing 9

VESA DDC2B

VESA DPMS

H ±1kHz, V ±1 Hz

Pre-Defined Timing

Power Saving

Input Signal Counter tolerance

Plug and Play

Connectors

Power Consumption

30W Max(with audio)

35%typical, 65%min

Dimming control range

(max-min/max) x100%

ITEM

Frequency Ranges

Analog Signal Input

(VGA)

Digital Signal Input

(DVI&HDMI)

Frequency Ranges

ACER A211H/A221HQ

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1. Product Specification

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This model combine with three platforms. See below

explanation.

1. Scaler IC: RTD2482D used in VGA, DVI and HDMI port.

Using simply word to define it.(1A1D1H)

2. Scaler IC: RTD2281 used in VGA and DVI port. Using simply

word to define it.(1A1D)

3. Scaler IC: RTD2280L used in VGA port. Using simply word to

define it.(1A)

1.1 Scope:

This document defines the design and performance

requirements for the 21.5” wide flat panel monitor. The

display elements shall be a 21.5” inch diagonal, UXGA

(1920 x1080) resolution TFT-LCD display .Video input

signals include D-sub and digital DVI-D , HDMI and

DP(DisplayPort) depends on different model. Power saving

function complies with the VESA DPMS (Display Power

Management Standard).

General display parameters:

This LCD monitor includes an interface board, a power

board and a function key board.

The interface board controls the TFT panel control logic,

brightness control logic, and DC-DC conversion to supply

the appropriate power to the whole board and LCD panel.

The LVDS signals transmit video data to LCD Module to

drive the LCD display circuit.

The power board will provide the DC power to the interface

board, LCD panel and inverter board.

The function key board is used for OSD control, monitor

power ON/OFF and the LED indicator for power status.

This monitor meets Energy Efficiency grade 2 of China.

1.2 General Requirements:

1.3 Electrical:

1.2.1 Test Condition:

Normal test condition is that brightness level set at

Max. and contrast level set default. Test pattern is full

white pattern. The warm up time is more than 30

minutes. Ambient light should be less than 1 Lux.

1.2.2 Test Equipment:

The reference signal source is a calibrated Chroma

2326 or Quantum 801GD video generator. The use of

compatible generators during qualification and

production is acceptable.

Luminance meter is Minolta CA210, TOPCON BM7 or

compatible equipment.

This section describes the electrical requirement of the

monitor. Below is the block diagram.

1. (continued)Product Specification

Pin Signal Description

1 Red-Video Red video signal input

2 Green-Video Green video signal input

3 Blue-Video Blue video signal input

4 GND Ground

5 Self Test Detect VGA Cable have connected or not

6 Red-GND Analog signal ground for the Red video

7 Green-GND Analog signal ground for the Green video

8 Blue-GND Analog signal ground for the Blue video

9 + 5V

+5 input from host system for the VESA DDC2Bi function

10 DDC-GND Signal ground

11 GND Ground

12 DDC-SDL

SDA signal input for the VESA DDCB2i function

13 H-SYNC Horizontal signal input from host system

14 V-SYNC Vertical signal input from the host system

15 DDC-SCL SCL signal input for the VESA DDC2Bi function

PIN NO SYMBOL FUNCTION

1 RXOIN0- Negative LVDS differential data input(Odd Data)

2 RXOIN0+ Positive LVDS differential data input(Odd Data)

3 RXOIN1- Negative LVDS differential data input(Odd Data)

4 RXOIN1+ Positive LVDS differential data input(Odd Data)

5 RXOIN2-

Negative LVDS differential data input(Odd Data,

DSPTMG)

6 RXOIN2+

Positive LVDS differential data input(Odd Data,

DSPTMG)

7 GND Power Ground

8 RXOCLK- Nega tive Sampling Clock input (ODD clock)

9 RXOCLK+ Positive Sampling Clock input(ODD clock)

10 RXOIN3- Negative LVDS differential data input(Odd data)

11 RXOIN3+ Positive LVDS differential data input(Odd data)

12 RXEIN0- Negative LVDS differential data input(Even data)

13 RXEIN0+ Positive LVDS differential data input(Even data)

14 GND Power Ground

15 RXEIN1- Negative LVDS differential data input(Even data)

16 RXEIN1+ Positive LVDS differential data oinput(Even data)

17 GND Power Ground

18 RXEIN2- Negative LVDS differential data input(Even data)

19 RXEIN2+ Positive LVDS differential data input(Even data)

20 RXECLK- Negative Sampling clock input(Even clock)

21 RXECLK+ Positive Sampling clock input(Even clock)

22 RXEIN3- Negative LVDS differential data input(Even data)

23 RXEIN3+ Positive LVDS differential data input(Even data)

24 GND Power Ground

25 NC No connection(For AUO test only. Do not connect)

26 NC No connection(For AUO test only. Do not connect)

27 VDD

28 VDD

29 VDD

30 VDD

Power Supply: +5V

Pin Signal Pin Signal

1 TMDS Data 2+ 11 TMDS Clock Shield

2 TMDS Data 2 Shield 12 TMDS Clock-

3 TMDS Data 2- 13 CEC

4 TMDS Data 1+ 14 Reserved

5 TMDS Data 1 Shield 15 SCL

6 TMDS Data 1- 16 SDA

7 TMDS Data 0+ 17 DDC/CEC Ground

8 TMDS Data 0 Shield 18 +5V Power

9 TMDS Data 0- 19 Hot Plug Detect

10 TMDS Clock+

Pin Signal Pin Signal

1 TMDS Data 2- 13 NC

2 TMDS Data 2+ 14 +5V P OWE R

3 TMDS Data GND 15 Self Test

4 NC 16 Hot Plug Detect

5 NC 17 T MDS D ata 0-

6 DDC Clock 18 TMDS Data 0+

7 DDC Data 19 TMDS Data G ND

8 NC 20 NC

9 TMDS Data 1- 21 NC

10 T MDS Data 1+ 22 TMDS Clock GND

11 T MDS Data G ND 23 TMDS Clock +

12 NC 24 TMDS Clock -

ACER A211H/A221HQ

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1.3.1 Interface Connectors:

1.3.1.1 Power Connector and Cable:

The AC inlet connector shall be an IEC/CEE-22

type male power receptacle for connection to

mains power. The power cord shall be black/white

depending on the color of machine with length of

1.8±0.05 meters. The power cord type is different

from regions.

1.3.1.2 Analog Connector and Cable:

These signal input connector shall be 15 D-sub

capable of receiving VGA analog signal. The VGA

signal cable shall be black and with length of

1.8meter. The D-sub cable shall be a molded-

over, shielded, triple row, 15 pins and blue color D

type connector.

1.3.1.3 DVI-D digital Connector and Cable:

These signal input connector shall be 24 DVI-D

capable of receiving TMDS digital signal. The DVI

cable shall be black and with length of 1.8meter.

The DVI cable shall be a molded-over, shielded,

triple row, 24 pins, and white color DVI-D

connector.

1.31.4 HDMI digital video and audio Connector and

Cable:

These input connector shall be capable of

receiving digital video and audio signal per HDMI

requirement. The optional HDMI cable shall be

Connector Pin Assignment:

black and with length of 1.8 meter.

A. D-SUB

B. DVI-D (Digital TMDS) Connector

C. HDMI Connector

D. Flat Panel Connector

LED Color

Power-ON Mode: Blue

Power Saving Mode: Amber

Shortcut menu Content OSD Display

Input change function

Use Input key to select from different video sources that may be conne cted to your monitor.

Speaker Volume control function

Press this button to acti vate the Volume menu.

OSD Function Press this button to activate the OSD menu.

Auto Adjust Function

Press this button to acti vate the Auto Adjustment function. The Auto Adjustment function is used

to set the HPos, VPos, Clock and Focus.

Empowering

Press the Empowering Key to open the Acer eColor Management OSD and access the scenario modes.

ACER A211H/A221HQ

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1. (continued)Product Specification

1.3.2 Input Signals:

1.3.2.1 Video Signal Amplitudes:

The video inputs consist of Red, Green and Blue

signals each has its own coaxial cable terminated

at the monitor. These video signals are analog

levels, where 0V corresponds to black, and

700mV is the maximum signal amplitude for the

respective color. The video signal is terminated

with 75 ohms.

1.3.2.2 Video Signal Termination Impedance:

The analog video signal termination shall be 75

ohm +/- 2%.

1.3.2.3 Synchronization (Sync) Signals:

The Horizontal Sync (HS) TTL signal is used to

initiate the display of a horizontal line. HS may be

either active high or active low according to the

timing. The Vertical Sync (VS) TTL signal is used

to initiate the display of a new frame. VS may be

either active high or active low according to the

timing.

1.3.2.4 Sync Signal Levels:

The monitor must accept sync signals from both

3.3 and 5 volt TTL logic families. The inputs shall

sense a logic 0 when the input is 0.8 volt or less

and shall sense a logic 1 when the input is 2.0

volts or greater. In addition to these level

requirements, there shall also be a minimum of

0.3 volt hysteresis provided for noise immunity

(typically by using a Schmitt Trigger input). That

is, the input level at which the monitor actually

detects a logic 0 shall be at least 0.3 volt lower

than the level at which it actually detects a logic 1.

If the monitor sync processing circuits were

designed with 3.3 volt logic family, then the sync

inputs must be 5 volt tolerant.

1.3.2.5 Sync Signal Loading:

TTL input loading shall be equivalent to one TTL

input load. When logic 0 is asserted by a sync

input, the maximum current source from any

single monitor sync input to the driver is 1.6 mA.

When logic 1 is asserted, the maximum current

source from the driver to any single monitor sync

input is 400 uA.

1.3.2.6 Abnormal Signal Immunity:

The monitor shall not be damaged by improper

sync timing, pulse duration, absence of sync,

abnormal input signal amplitude, or any other

anomalous behavior of a graphics card.

1.3.2.7 Digital TMDS Input (DVI and HDMI signal input):

These video inputs consist of TX0+/- to TX2+/-±

and CLK+/- signals, each with its own shielded

twisted pair. These video signals are digital levels.

Each signal pair is terminated by a normal 100

ohms.

1.3.2.8 Audio Function (optional):

This monitor integrated with stereo audio.

Speakers: 2 x 1W

Amplifier: Output 1W with 500mVrms Sine wave

input.

Input impedance: >22K Ohms.

THD: <10%.

1.3.3 User Controls and Indicators:

1.3.3.1 Power On/Off Switch:

The monitor shall have a power control switch

visible and accessible on the side of monitor.

1.3.3.2 Power Indicator LED:

The monitor shall have LED indicators located on

the front of the monitor. Table 1 is the LED color

for the power indicator.

1.3.3.3 On-Screen Display:

On Screen Display system shall be used to

control the monitor. Current setting will be saved

and OSD will be tuned off when the keys are not

touched for a period of time. (Please see OSD

timeout section)

A) Key Function Overview: All functions are

controlled by OSD buttons on the front cover.

Press the function button to open the shortcut

menu. The shortcut menu lets you quickly select

the most commonly accessed settings.

B) Menu Operation:

Pressing the MENU button brings up the first level

menu. This menu button is used to enter the

second OSD menu also.

C) OSD Function:

Cabl e Remark

640x480p@59.94/60Hz 59.94/60Hz Cat1

720x480p@59.94/60Hz 59.94/60Hz Cat1

1280x720p@59.94/60Hz 59.94/60Hz Cat1

720x576p@50Hz 50Hz Cat1

1280x720p@50Hz 50Hz Cat1

1920x1080i@59.94/60Hz 59.94/60 Hz Cat1

1920x1080i@50Hz 50Hz Cat1

1920x1080p 50Hz Cat2

1920x1080p 59.94/60 Hz Cat2

Primary Video Format Timings

CEA Timming

ITEM Content

Volume To increase or decrease the sound lev el

Brightness Adjust backlight luminance of the LCD panel

Contrast Adjust gain of R,G,B signal

Clock Adjust the ratio of dividing frequency of the dot clock

Focus Adjust the phase of the dot clock

H.Position The active screen is horizontally mo ve right and left

V.Position The active screen is vertically move up and down

Color temp Select three kinds of modes(Warm, Cool, User)

1.USA-select the language among En glish, French, Italian, Deutsch, Spanish,

繁體中文, 簡體中文, 日本語

2.EMEA-select the language among English, French,Italian , Deutsch, S panish, Russian, Dutch, Finnish

OSD Position Adjust the OSD menu position

OSD Timeout The OSD menu show time

Setting The setting of Input Source, Wi de Mode, DDC/CI

Information

It will show resolution, the frequency of horizontal/vertical synchronizing and S/N

Reset All data copy from shipment factory data

OSD Language

Power

Saving Mode

Menu

This func ti on gives a warning m ess age when selected input

signal is n ot active. When the M on itor dete cted that the VGA

or DVI is su spend or standby mo de. The M onitor shall display

a messag e, “No Signal” for 4 s econd s an d the LE D shall be

blue, and to alert the user t ha t input signal is not a ctive.

Then the m onitor sha ll go into sleep mode a nd the LED shall

be Amber.

Out of

range Menu

This func ti on gives warning me ssage about input reso lution or

refresh rate that the mo nitor cannot support . W hen an inp ut

signal wh ich is out o f t he normal operat ion range define d in

Section 3 .2. Then the monitor w ill display “Input not supported”

message :

1. Pixel c lock frequency : Fc>165 (Digital)

Fc>205 (Analog)

2. V-syn c frequency: 50Hz>FV >=76Hz

3. H-sy nc f requ en cy: 30KHz>FH>83K Hz(Analog );

30KHz>FH>8 3KHz(Dig ital)

Check Signal

cable Menu

This func ti on gives warning me ssage when the VGA ca ble is

not connecte d. When the Monitor de tected that the VG A ca ble

is not conn ecte d to the mon itor. The OS D s ha ll display a

message “Cable not connected” all the time to alert the user

that the vide o cable is not plugge d in. The LED shall b e blue.

The moni tor s hall use a method of a pull-up resistor o n a

ground pi n t o determine if the vide o ca ble is connected to

the PC.

Resolution Horizontal Vertical Nominal Pixel User Manual

(active dot)

Frequency

(KHz)

Frequency

(Hz)

Clock (MHz) de scription

640x480@60Hz 31.469 59.941 25.175 Yes Established Timing

640x480@72Hz 37.861 72.809 31.5 No N/A

640x480@66.66Hz 35 66 .6 6 30.24 Yes Established Timing

720x400@70Hz 31.469 70.087 28.322 Yes Established Timing

800x600@56Hz 35.156 56.25 36 Yes Established Timing

800x600@60Hz 37.879 60.317 40 Yes Established Timing

800x600@72Hz 48.077 72.188 50 No N/A

1024x600@60Hz 37.32 60 48.964 No N/A

1024x768@60Hz 48.363 60.004 65 Yes Established Timing

1024x768@70Hz 56.476 70.069 75 Yes Established Timing

1152x864@75Hz 67.5 75 108 Y es Standard Timing

1280x960@60Hz 60 60 108 No N/A

1280x1024@60Hz 63.981 60.02 108 Yes Standard Timing

1280x720@60Hz 44.76 60 74.481

No N/A

1280x800@60Hz 49.702 59 .8 1 83.5

Yes Standard Timing

1360x768@60Hz 47.712 60.015 85.5

No N/A

1440x900@60Hz 55.935 59.887 106.5 Y es Standard Timing

1680x1050@60Hz 65.29 59.9 54 146.25 No N/A

1600x1200@60Hz 75 60 162 No N/A

1920x1080@60Hz 67.158 59.963 173 Yes Standard Timing

1920x1080@60Hz 67.5 60 148.5 Yes Detail timing

1920x1080@60Hz 66.587 59.934 138.5 No

EDID

1. Product Specification (continued)

monitor shall display a warning screen indicating

that the input frequency is out of range. Under no

circumstances shall any combination of input

signals cause any damage to the monitor.

1.3.4.2 Factory Assigned Display Modes:

There are 13 factory pre-set video modes. Pre-

defined mode parameters will be recalled if the

operating mode is one of those pre-set modes. If

the operating mode is not one of those stored in

memory, the monitor CPU will select the PRESET

timing for a mode that is the next lowest in

horizontal scanning frequency The screen

parameters can be adjusted by the front bezel

control buttons and then saved as a user defined

mode. The monitor shall include all the preset

video timings shown in the following page. Preset Timing Chart:

ACER A211H/A221HQ

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D) OSD Control Factory Default Values:

The OSD controls shall have the following factory

default values:

Brightness: 77

Contrast: 50

Color Temperature:

Warm(6500)/Cool(9300)/User (R/G/B all are 100)

1.3.4 Monitor Modes and Timing Capability:

1.3.4.1 Format and Timing:

Horizontal Position of Screen: 50

Vertical Position: 50

OSD Time: 10 seconds

OSD Language: English

The monitor shall synchronize with any vertical

frequency from 55 to 76 Hz, and with any

horizontal frequency from 30 to 83 KHz for analog

input and from 30 to 83 Khz for DVI input. If the

input frequency is beyond the specified range, the

Preset video timings (digital inputs)

1.3.4.3 Mode Recognition Pull-in:

　　　　　The monitor shall recognize preset modes within

a range of +/- 1 KHz for horizontal and within a

range of +/- 1Hz for vertical.

1.3.5 Controller Requirements:

1.3.5.1 General Requirements:

The monitor shall include a controller which is

capable of converting the analog RGB signal or

Input Voltage Ra nge

The operatin g range shall be from 90 to 264 VA sinusoi dal for all

models spe cified.

Input Frequency Ra nge Inp ut power frequ ency range shall be from 47 to 63Hz.

Power Con sumption

Power consu mption for the monitor shall be less than 30W ove r

the specified voltage an d frequency ranges. In powe r off mode the

power con sumption will be less than 1W (at 90VAC~26 4VAC).

Line Fuse

The AC input shal l be fused and become el ectrically open as a

result on an un safe current level. The fuse may not be user

replace able.

Initial Co ld Start

The power sup ply shall start and function pro perly when unde r full

load, with w orst case condi tions of inpu t voltage, inp ut frequency,

operatin g tempera ture, and cold backlig ht lamps.

Inrush Curren t

The inrush curre nt must be limited to 35A when operated at

120VAC, and 80A when operated at 220VAC. In - rush current is

measured at an ambien t temperature of 25° C, with the uni t

temperature stabi lized in the powe r - off.

Hot Start Cycle

The power sup ply shall not be damag ed when switched ON

for one second and OFF for one second for seven

consecutive times after operating for one hou r at full load ,

25°C, and nomina l input line voltag e.

Under Vol tage

The power sup ply shall contain pro tection circui try such that

the appl ication of an input voltage below the minimum

specified in this table shall no t cause damag e to the power

supply un it nor cause fail ure of the input.

Line Transi ent

The power sup ply shall operate wi thin IEC 801 -4 (+/-1KV)

and IEC 801 -5 (+/-2KV) for the dome stic U.S. Version. The

UPS power sup ply shall operate an d comply with CE mark.

DC Output 5 .15+/-0.2V (1.85A); 22+/-2V (0.75 A)

Item Min. Typ. Max. Unit

Output Curre nt 3 7.5 8 mArms

Output Voltage

7 91

Vrms

Operation frequency 40 5 5 60 KHz

Striking Voltage --- --- 1780 Vrms

Inverter specification for M215HW01 V7

ACER A211H/A221HQ

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1. Product Specification (continued)

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DVI digital signal to the panel. The controller will

include a PLL, A/D converters, TMDS receiver

and other circuitry necessary to perform its

function. The PLL shall be stable enough to

ensure a stable image.

1.3.5.2 Video Stretching:

The monitor shall have the function to “stretch”

the video signal, so that an input signal from the

computer in any resolution smaller than 1920 x

1080 is automatically expanded to fill the entire

screen.

1.3.5.3 Panel Timing and Interface:

The controller supplied with the monitor shall

control all panel timing. This controller shall

adequately insulate themonitor from the

computer, so that no possible combination of

input signals from the computer shall cause

damage to the flat panel or any other component

of the monitor.

1.3.6 DC - AC Inverter Requirements:

The frequencies used by the DC - AC inverter should be

carefully selected to prevent any noticeable effects on the

screen (such as a rolling effect). The Inverter

specification detail information in Table 2:

1.3.7 Power Supply Requirements:

The AC to DC power supply for this monitor shall be an

integrated power supply. This power supply shall have an

IEC receptacle for mains power input and provide

sufficient power for backlight assembly, interface board

and panel. And it should meet all requirements specified

in the following Table.

　　　　1.3.8 Display Communications Channel:

The monitor shall provide a display communications

channel that conforms to VESA DDC2B hardware

requirements. This configuration shall contain the

128-byte EDID file as specified by VESA E-EDID

Standard. Once the EDID is programmed the write

protection function will enabled. So the EEPROM

data cannot be overwritten.

1.4 Flat Panel:

1.4.1 General Requirements:

The panel shall be a Full HD resolution 21.5”

diagonal TFT-LCD.

1.4.2 Panel Timings:

The controller in the monitor shall translate video

timings from the PC to meet the timing requirements

listed in Panel specification. Under no circumstances

may the controller supply the panel with timings that

may result in damage. The controller shall insulate

the panel from the PC, so that the panel shall always

be driven according to its specification regardless of

the timings being sent from the PC.

1.4.3 Polarizer Hardness:

　　　　　 The outer face of the front polarizer panel shall be

covered with a coating with a 3H hardness value.

1.4.4 Backlight Requirements:

The backlight assembly shall be designed to support

field replacement at the customer site or authorized

service center. The backlight module shall have a

continuous operating life of at least 30,000 hours at

25°C. The operating life is defined as having ended

when the illumination of light has reached 50% of the

initial value. The backlight module shall extend a

sufficient amount from the edge of the light guide that

sputtering over the life of the

backlight shall not cause degradation of the

luminance uniformity (such as non-illuminated bands

along the edges of the display).

1. Product Specification (continued)

ACER A211H/A221HQ

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1.4.5 Defects:

1.4.5.1 Visual Inspection:

The LCD panel shall be inspected with all pixels

set to white, black, red, green and blue. The color

variation, brightness variation, and overall

appearance must meet the SPEC.

1.4.5.2 Display Degradation:

Over the life of the product, variation of the

parameters specified in Panel specification shall

be maintained within reasonable limits. The panel

must not exhibit any significant defects while in

operation (excluding the lamp operation).

This does not in any way change the warranty

given by the panel manufacturer.

1.4.5.3 Light Leakage:

Except for the active display area, there shall be

no light emission visible from any angle from any

other part of the display. For this test, the ambient

illumination will follow the panel specification 300 to 700 lux．

1.4.5.4 Allowable Defects:

No cosmetic defects are allowed except those

specified below. The conditions of visual

inspections are as follows:

　　　　　- Viewing distance: 35 ~ 50cm.

　　　　　- Ambient illumination: 300 to 700 lux.

　　　　　- Viewing angle shall be at 90 degree.　

　　　　　- Defects not apparent within one minute shall be

ignored.

1.4.5.5 Defect Terminology:

The following gives the descriptive terms used in

classifying defects

　　　　　　　Dark Spots / Lines:

Spots or lines that appear dark in the display

patterns and are usually the result of

contamination. Defects do not vary in size or

intensity (contrast) when contrast voltage is

varied. Contrast variation can be achieved

through the use of varying gray shade patterns.

Bright Spots / Lines:

Spots or lines that appears light in the display

patterns. Defects do not vary in size or intensity

(contrast) when contrast voltage is varied.

Contrast variation can be achieved through the

use of varying gray shade patterns.

Polarizer Scratch:

When the unit lights, lines appear light (white)　　

with display patterns dark and do not vary in size.

Physical damage to the polarizer does not damage the

glass.

Polarizer Dent:

When the unit lights, spots appear light (white) with

display patterns dark and do not vary in size. Physical

damage to the polarizer does not damage the glass.

Rubbing Line:

Horizontal or diagonal lines that appear gray with the

display patterns dark and may have resulted from an

“out of control” rubbing process on the polyimide or

“waves” on the BEFs or prism sheets .

Newton Ring:

The “rainbow“ effect caused by non-uniform cell

thickness.

Mottling:

When the unit lights, variation / non - uniformity(splotch)

appears light (white) with the display and might vary in

size.

Dim Line:

When the unit lights, line(s) in the minor (vertical) or

major (horizontal) axis appear dim, but not completely

on or off.

Cross Lines Off:

When the unit lights , lines in both the minor and major

axis do not appear.

Bright/Dark Dot:

A sub - pixel (R, G, B dot) stuck off / on (electrical).

1.4.5.6 Smudges, Streaks and Smears:

When viewing the panel oriented so as to maximize

reflected light, there shall be no visible smudging,

streaking, smearing or other non-uniformity from

contaminants, fingerprints, or defects in any of the

visible surfaces. This is independent of whether the unit

is operating or off.

1.4.5.7 Other Defects:

Undefined defects that are considered to be rejectable

by Acer will be reviewed by Wistron as they become

apparent. These panels will be referred to the Wistron

Corporate / Manufacturer Purchasing Agreement for

disposition

1.4.5.8 LCD Inspection:

Put LCD panel on inspection table and illuminate the

panel with a daylight fluorescent lamp located above the

panel surface such that the luminance at the LCD panel

is between 1000 lux. and 1500 lux. Defect limits are

given inTable 4 .

Average Dia meter

Smaller of (L+W)/2 or

L/20 + 2W

Acce ptable

Number

Minimum Sep aration

< 0.1mm Non coun table N / A

0.1mm - 0.3mm 10 15mm

0.31mm - 0.5mm 10 15mm

0.51mm - 1.2 5m m 5 15mm

1.26mm - 2.5mm 3 25.4mm

2.51mm - 0.3mm 3 25.4mm

Greater than 3.75mm None No t applicable

Table 4. Desc ript iv e Terms

ACER A211H/A221HQ

8

1. Product Specification (continued)

Go to contents page

Allowable distance between spots of two sizes is the

minimum separation number for the smaller spot.

Therefore, if there are two spots, 1.30 mm and 0.4

mm in diameter, they must be at least 15 mm apart.

1.5 Optical Characteristics:

1.5.1 Brightness uniformity:

The uniformity is determined by using a photometer

(CA-210) to measure the 9 points luminance in front

of monitor after at least 30 minutes warm up. It shall

be test at 1920x1080/60Hz mode and full white

square pattern with contrast / brightness in default

value. The values specified are at an approximate

distance 20 cm from the LCD surface and at 0

viewing angle.

The 9 test points are defined as below:

1.5.2 Contrast ratio (CR) :

1.5.2.1 General CR:

The contrast ratio is determined by using a photometer

(CA-210) to measure the maximum and minimum

luminance in front of monitor after at least 30 minutes

warm up. It shall be test at 1920x1080/60Hz mode

and full white/full black square pattern with

contrast/brightness in default value. The values

specified are at an approximate distance 20 cm from

the LCD surface and at 0 viewing angle.

The contrast ratio is calculated as below:

CR=(Max. full white luminance)/(Max. full black

luminance)

CR = 600:1(min.), CR=1000:1(typ.)

1.5.2.2 ACM (Auto Contrast Management):

The input image signal source may be various levels

of illumination, and this ACM unit can analyze it as

histogram for the various levels of illumination,

according to the analyzed result, when input a low-

luminance level image, display brightness will be

adopted to corresponding low level, so that enhance

the contrast rate, this facilitates visual ergonomics

enhancement .

The monitor should me CR >50000:1 when ACM

function is active.

1.5.3 Response time:

The response time is defined as below:

The brightness uniformity is calculated as below:

Brightness uniformity >= 75%

Remark: The black luminance non-uniformity are no

defined by panel spec, therefore, we don't define the

spec. for black luminance non-uniformity.

Tr + Tf : 5 msec typ.

Remark: Optical response time vs gray scale.Test

condition: brightness set to max, and contrast set to

default.

1.5.4 Viewing angles:

The viewing angles are measured at CR >=10 as below :

1. Product Specification (continued)

Height (including stand) 370mm

Depth (including stand) 161 mm /52.5mm(without base cover)

Width 511.3mm

Pack Dimensions (H x W x L) 570L)x114(W)x396(H)mm

Packaged Weight 4.95kg

Unpacked Unit Weight 3.49 kg

40” container loading, palletized 2000 units

Maximum Stacking Height 5 layers, 2103 mm

Mounting Method 100 x 100 mm VESA Mount

Attachment Method (4) Screws ,M4 x 10mm flat head Phillips socket

Tilt Range -5+/-1.5 degree, +15+/-1.5 degree

Swivel Range -0degree, +0 degree

Lift Range 0mm

Pivot NO 0degree, clockwise

Stand base(attached or detached for shipping)

detached

Stand Tilt/Swivel/Lift/Torque Backward

Tilt

Backward: 1.4+/-0.3 kgf Back ward(pivot): 0kgf Forward: 1.4+/-0.3 kgf Forward(pivot): 0 kgf 3000 times still within spec

Swivel 0kgf/3500 times still with spec

Upward: 0 kgf/3500 times still within spec

Downward: 0kgf/3500 times still within spec

Pivot 0kgf/3500 times still within spec

Head Unit Squareness

｜A-B｜<= 5.0mm |C-D| <= 5.0mm

Head Unit Stability (Wobble Resistance)

Time <= 5 seconds, Displacement <= 7 mm

Cable Management No

Kensington lock hole Yes

Normal Temperature Drop Height (Packaged)

760 mm, 30 inches

Cold Drop Height (Packaged)

Sequence 1 corner ( Corner: corner2-3-5) -> 3 edges -> 6 sides

Lift

Horizontal Left: 　85 degrees typ.

Right: 85 degrees typ.

Vertical Up: 　　80 degrees typ.

Down: 80 degrees typ.

1.5.5 Chromaticity:

The color chromaticity is measured by a photometer

(CA-210) at 1920x1080/60Hz mode and full white

square pattern with contrast/brightness in default

value. The x and y co-ordinates for Reddish, Bluish

and User preset mode shall be as below:

Reddish Preset (6500K):

x=0.313 +/- 0.020

y=0.329 +/- 0.020

Bluish Preset (9300K):

x=0.283 +/- 0.020

　y=0.297 +/- 0.020

1.5.6 Brightness:

The uniformity is determined by using a photometer

(CA-210) to measure luminance on the center of

screen after at least 30 minutes warm up. It shall be

test at 1920x1080/60Hz mode and the brightness and

contrast OSD setting for 100%. The values specified

are at an approximate distance 20 cm from the LCD

surface and at 0 viewing angle. The full screen white

center luminance at User mode color temperature

shall be 250 cd/m² typ. And > 200 cd/m² min. Full

screen black pattern luminance at center should be <

1cd/m².

1.6 Environmental Requirements:

1.6.1 Temperature Ranges:

Operating Temperature: 5°C to 35°C

Shipping Temperature: -20°C to 60°C

1.7 Mechanical Specification:

Storage Temperature: -20°C to 60°C

1.6.2 Humidity:

Operating (non-condensing): 5% to 90%

Shipping (non-condensing): 5% to 90%

Storage (non-condensing): 5% to 90%

1.6.3 Altitude:

Operating 0 to +12,000 feet [3,658m].

Equivalent to 14.7 to 10.1 psia.

Shipping (Non-Operating) 0 to +40,000 feet

[12,192m].

Equivalent to 14.7 to 4.4 psia.

1.7.1 Mechanical Summary Table:

ACER A211H/A221HQ

Go to contents page

1.7.2 Stand:

1.7.3 Dimension(cm):

unit: mm

1.8 SHIPPING AND PACKING:

Packaging and wrapping shall be sufficient to protect the

product against damage or loss during shipment from the

supplier to the destination specified in the purchase order.

All packaging materials are subject to be tested and

evaluated. The container loading is 2000sets/40'.

The outside dimension of carton box is

570(L)x114(W)x396(H)mm.

9

Key Func tion Description

Power Power on/off the monit or

A

Move the focus dow n

B Move the focus up

C

Enter to the it em page

(It has no fu nct ion at the information page)

D Exit the OSD menu

E Trigger the Acer eColor Ma nagement

Key Func tion Des cript ion

Power Power on/off the monit or

A Move the focus down

B Move the focus up C Select function item for adjus tm ent D Exit from the it em page t o ic on place

E Trigger the Acer eColor Ma nagement

Key Func tion Des cription

Power Power on/off t he monitor

A Increase the set ting value for target item

B Descrease the se tting vallue fo r target it em

C No function

D Exit from item selected status

E Trigger the Acer eColor Management

Key Function Desc ription

Power Pow er o n/off monitor

A Input Sw itc h

B Volume Mana gement OSD

C M ain M enu OSD

D Aut o C onfig

E Trigger the Acer eColor Management

10

ACER A211H/A221HQ

Go to contents page

2. OSD Menu

2.1 Function Menu:

1). Display Function Menu while user press any function button.

2). Layout as following figure:

2.2 Key Definition:

C

DE

Power

AB

2.3 Main OSD Menu:

2.3.1. OSD layout:

1). Display OSD menu when user press “C” button in

Function Menu.

2). Layout as following figure.

Acer logo

b. Icons introduction

Function

Status

Non-Focus

Picture OSD Setup Information

Focus

Focus on

Item-page

c. Item page status

Status Display type

Non-focus

Item focused

Item selected

2.3.2 Key operation:

a. Key operation at function icon.

Funct ion Icon s

Information Bar

OSD layout for main menu

a. OSD layout for each function page

Picture OSD

Item page for each function group

Focus at main icons

b. Key operation at items page, no item selected.

Focus at item page

c. Key operation at items page, item selected.

1280x9 60

H:60KH z

S/N:ETLH10W004010 0BBE24300

Settings Information

Item is selected

2. OSD Menu (continued)

Item Description

Auto Config Please Wait

When user press hot key "Auto" will show this messag e,

and the monitor do t he Auto config function.

Input Not Sup port

When the Hsync F requency,

Vsync Frequenc y or Resolution is o ut of the monitor suppo rt range,

will show this message. The message will be flying.

Cable Not Connecte d

When the video c ab le is not connected, will show thi s message.

This message will be flying.

No Signal

When the video c ab le is connected, but there is

no active signal input, w ill show this message,then ent er power saving.

Please Wait

After user trigger th e reset function,

system will show this messa ge notice user the reset is in proceeding.

2.4 Acer eColor management:

a. Display Acer eColor management OSD when user

press “e” button at Function menu or trigger this function in OSD menu/picture page.

b. Layout as following figure.

OSD layout for the acer eColor management

2.5 Volume management OSD:

a. Display volume management OSD, when user press “<”

or “>” button on the front bezel.

b. Layout as following figure, key operation at items page.

(No item selected)

ACER A211H/A221HQ

Go to contents page

11

Key Function Description

A Volume up B Volume down D Close the Volume OSD

OSD layout for volume management

2.6 Acer logo:

When the monitor is turned on, the LOGO will be showed

in the center.

Acer logo

2.7 OSD Message:

12

ACER A211H/A221HQ

Go to contents page

3.1 Pro duct Explo ded Diagra m:

3. Exploded Diagram

3.2 Pac king Explo ded Diagra m:

3. Exploded Diagram (continued)

ACER A211H/A221HQ

Go to contents page

13

14

ACER A211H/A221HQ

Go to contents page

4. Assembly and Disassembly Procedures

4.1 Assembly procedures:

S1

Connect of power board with P301 of

interface board. Connect P003 of power board with

P802

P308 of interface board. Connect function key cable

with P309 of interface board. Connect the speakers’

cable to P001 of power board.

speaker’s cab le

Place a bracket chassis base on a protective

S2

cushion. Turn over the circuit boards and put them

into the bracket chassis base.

P802

P003

P001

LVDS Cable

P301

P309

funct ion key ca ble

P308

S5

Locate the function cable and audio cable in the hooks shown as photo.

funct ion key ca ble

key

audio cable

Fix two speakers on the probes of speaker

S6

holders with caps.

S3

S4

Use a Phillips-head screwdriver to tighten four

screws till the power board and bracket chassis

base be firmly attached.

(No.1 screw size=M4x8, Torque=6~8kgfxcm;

No.2~4 screw size=M3x6, Torque=6~8kgfxcm)

1

3

4

2

Use a Phillips-head screwdriver to tighten one

screw till the interface board and the bracket

chassis base be firmly attached.

(No.1 screw size=M3x6, Torque=6~8kgfxcm)

S7

Turn over the bracket chassis module. Use a Hex-

head screwdriver to tighten four screws for locking

the DVI and D-Sub connectors.

(No.1~4 screw size=M3x8, Torque=5±1kgfxcm)

Use a

Phillips-head screwdriver to tighten one

screw for locking the HDMI or DP connector.

(No.5 screw size=M3x8, Torque=5±1kgfxcm)

Use a

Phillips-head screwdriver to tighten two

screws for locking the AC power outlet.

(No.6~7 screw size=M3x10, Torque=5±1kgfxcm)

7

6

5

4

1

2

3

Panel preparation: Examine the panel surface

S8

1

according to inspection criteria. Turn over the

panel to place the screen faced down for later

assembleing.

4. Assembly and Disassembly Procedures (continued)

function key board

Plug lamp cables to the connectors of power

S11

board, then fix the lamp cables with tapes.

ACER A211H/A221HQ

Go to contents page

15

S9

Put the bracket chassis module on the back of

LCD panel module.

S12

S13

Place a front bezel on a protective cushion the

bracket chassis module into the front bezel. Adjust

the position of bracket chassis module till it is firmly

attached to the front bezel.

Take a function key board, then connect the

function key cable with the function key board.

Locate the function board in the hook of the front

bezel, then fix the function key cable with PVC

tapes.

, put

S10

Connect FFC cable to LVDS connector, fix the

cable with double faced adhesive tape which is

sticked on the back of cable.

function key board

16

ACER A211H/A221HQ

Go to contents page

4. Assembly and Disassembly Procedures (continued)

S14

S15

Put a rear cover on the assembled unit and push

the rear cover on the positions marked as No.1~4 in

priority order for mechanisms engagement.

4

3

2

1

Use a Phillips-head screwdriver to tighten three

screws for fixing hinge with the rear cover.

(No.1~3 )Screw size=M4x9, Torque=12±1kgfxcm

4

3

2

1

S18

S19

Assemble. the hinge covers as the below picture.

Align the base cover with the stand and push the

base cover towards the top of the monitor for

assembling the base

Lift up the LCD module, check the acer logo if it is

firmly attached to the front bezel, connect a video

cable and power cord with the monitor and turn on

the monitor for functionality check.

S16

S17

1

2

3

Use a Phillips-head screwdriver to tighten three

screws for fix hinge cover with the hinge.

(No.4 )~6 Screw size=M4x8; Torque=6-7kgfxcm

4

5

6

Take a arm, then install the arm to the hinge cover

following the direction as the picture below.

S20

S21

Turn off the monitor and remove the video cable

and power cord from the monitor. Stick a screen

protector on the front bezel with adhesive tapes.

Take a EPE bag to cover the LCD monitor, put the

monitor face down on the table.

S22

S23

4. Assembly and Disassembly Procedures (continued)

Depress the release hook as indicated first before

removing the base and follow the arrow direction

to remove it.

Depress the release button as indicated, then

remove the arm follow the arrow direction.

ACER A211H/A221HQ

Go to contents page

17

S24

S25

Pack with PE bags. Take two

the base and arm

cushion foams to hold the LCD monitor, put the

base and arm on the specific positions as the

below picture. Fix the base with adhesive tapes.

base

arm

Move the whole unit into a carton and put

accessories including user’s manual, D-Sub

cable, audio cable, DVI cable, power cable and

UK cable on specific positions as the photo below.

Seal the carton.

POWER CABLE DVI CABLE

UK CABLE AUDIO CABLE

D-SUB CABLE

USER’S MANUAL

ACER A211H/A221HQ

18

4. Assembly and Disassembly Procedures (continued)

Go to contents page

4.2 Disassembly procedures:

Open the carton with a proper tool.

S1

Take out all accessories including user’s manual,

S2

power cable, D-Sub cable, DVI cable, audio cable

and other packing materials from the carton.

(Note: It depends on whether users return the

accessories.)

1

3

2

Use a Phillips-head screwdriver to remove three

S6

(No.4~6 screw size=M4x9, Torque=11~13kgfxcm)

screws for releasing hinge.

5

6

POWER CABLE DVI CABLE

Take out the whole cushion foams from the carton

S3

S4

and remove base and arm.

arm

Remove two cushion foams, tear off the adhesive

tape, take out the LCD monitor from the EPE bag,

remove the screen protector, then put the LCD

monitor on a protective cushion.

UK CABLE AUDIO CABLE

D-SUB CABLE

USER’S MANUAL

base

S7

4

Turn over the LCD monitor to let the screen faced

up. Place a cloth on the panel where you are

working on to protect the panel. Then wedge your

fingers between the front bezel and the panel for

unlocking the mechanisms.

S5

Use a Phillips-head screwdriver to remove three

screws for releasing the hinge cover.

(No.1 Screw size=M4x8; Torque=6-7kgfxcm)

4. Assembly and Disassembly Procedures (continued)

function key board

ACER A211H/A221HQ

Go to contents page

19

Turn over the LCD monitor to let the screen faced

S8

Tear off the PVC tape,

S9

down and then remove the rear cover.

release the function key

board from　the hook of the front bezel, then

disconnect the function key cable from

connector of the function key board

function key board aside.

the

. Put the

Unplug lamp cables follow the direction as the

S11

S12

Lift up the bracket chassis module for taking

S13

below picture.

Move the bracket chassis module down, push the

earing-lock, then remove the FFC cable from the

LVDS connector.

away the panel module, then put the bracket

chassis module on a protective cushion .

Lift up the bracket chassis module for removing the

S10

front bezel and then put the bracket chassis module

on a working table with protective cushion for later

disassembly.

20

ACER A211H/A221HQ

Go to contents page

Use a Hex-head screwdriver to remove 4 screws for

S14

unlocking the DVI and D-SUB

connectors.

(No.1~4 screw size=M3x8, Torque=5±1kgfxcm)

Use a Phillips-head screwdriver to remove one

screw for unlocking the HDMI or DP connector.

(No.5 screw size=M3x8, Torque=5±1kgfxcm)

Use a Phillips-head screwdriver to remove two

screws for unlocking the AC power outlet.

(No.6~7 screw size=M3x10, Torque=5±1kgfxcm)

mechanisms of

4. Assembly and Disassembly Procedures (continued)

1

Use a Phillips-head screwdriver to remove four

S18

screws for unlocking the power board.

(No.1 screw size=M4x8, Torque=6~8kgfxcm;

No.2~4 screw size=M3x6, Torque=6~8kgfxcm)

S15

7

6

5

4

1

2

3

Turn over the bracket chassis module, and then

remove both of the speakers from the bracket

chassis module by pulling out the caps of

speaker holder

.

the

1

3

Remove the

S19

circuit boards on a protect cushion, then

disconnect all of the cables.

4

2

bracket chassis base and put the

Release the speakers’ cable and the function

S16

cable from the hooks of the bracket chassis base.

funct ion key ca ble

audio cable

Use a Phillips-head screwdriver to remove one

S17

screw for unlocking the interface board with the

bracket chassis base.

(No.1 screw size=M3x6, Torque=6~8kgfxcm)

5. Troubleshooting

Does OSM display when you

push “MENU key.

Yes No

Proceed "No OSM display"

section.

Check if the sync signal from

computer is output and if the

video cable is connected

normally.

OK

Proceed "checking the resolution

change IC movement" section.

NG

Input the sync signal of computer,

or change the cable.

When a signal isn't being

inputted, it is indicated with "No

Signal Input". it is indicated with

"Out Of Range" at the time of the

frequency that it can't be

distinguished.

5.1 Troublesh ooting for A cer A211H/A221 HQ(1A1D1 H):

5.1.1 No display on the screen (Screen is black and colour of LED is amber):

ACER A211H/A221HQ

Go to contents page

21

Is backlight lit?

Refer "Checking the backlight unit" section"OK NG

Does computer output RGB

video signals?

OK

Check OSM menu is display

on screen when you push

the "MENU" key.

Proceed "Abnormal sreen"

dection"

OK

NG

Check the video cable for failure. Check the host for output signal is all black or not.

1) Change pattern of video signal output on the host.

2) Reconnect the video cable.

3) Change the video cable.

NG

Check if the LCD video signal cable is

connected between the Interface Board and

LCD module.

OK

Failure Point

The LCD video signal cable is disconnected.

22

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.1.2 N othing dis plays on the s creen (Scr een is black a nd colour of L ED is blue):

5.1.2 N othing dis plays on the s creen (Scr een is black a nd colour of L ED is blue)c ontinued :

Failure Point

1) The LVDS cable broke between P307 and LCD module.

2) LCD module is failure.

Failure Point

I304 is failure.

Continue

Check the 5V power supply for

P301 pin 4,5,6.

OK

Check the I304 pin2 if voltage is 3.3V

OK

NG

Check if the voltage

between I304 pin2 and

pin3 is above -0.7V

OK

Check the P307 all LVDS signals.

OK

NG

Proceed "Checking the DC/DC

converter circuit" section.

NG

Check the I304 pin2 if voltage is 5V

Failure Point

1) FB301 is open..

OK

Check the I305 pin2 if voltage is 1.2V

OK

NG

Proceed "Checking the DC/DC

converter circuit" section.

Check the input voltage level

whether was changed when

pressed function keys on the P308

pin1

Check if the voltage on I308 pin 108 that

is from 3.3V to 0V.

OK

NG

OK

NG

Failure Point

Printed wire broke between P310 pin 1 and I308 pin 108.

Failure Point

I308 is failure

Failure Point

1) Printed wire broke between P307 and I308 LVDS signals.

2) I308 is failure.

5. Troubleshooting (continued)

ACER A211H/A221HQ

Go to contents page

23

Is +22V supplied to inverter

PWB? (by the power board)

OK NG

Failure Point

Power board of Inverter part failure.

Check the BKLT_EN signal of the

DC input P301 pin 2 at TTL high

level.

OK NG

Failure Point

1) printed wire broke between P301 pin2, R304 and I308 pin101.

2) I308 is failure.

Check the BKLT_ADJ signal of

the input P301 pin3 from I308

pin102 is a PWM signal.

OK NG

Failure Point

Printed wire broke between P301 pin3, R501 and I308 pin102.

Failure Point

1) Back light unit of LCD module is failure.

2) Inverter Cable disconnect

24

ACER A211H/A221HQ

Go to contents page

5.1.3 C hecking th e back light u nit:

5. Troubleshooting (continued)

5.1.4 A bnormal sc reen( for VG A):

Check the R, G, B video signal from

computer input on P302 of D-sub

connector.

OK NG

Failure Point

1) No R, G, B video signals output from host computer, check computer.

2) Video signal cable disconnection.

Check the R, G, B input video signals

on I308 pin25, 27, 30 respectively that

their level is 0.0 to 0.7Vp-p.

Failure Point

In the case of the Red signal. (A Green and Blue signal is the same path, too.)

1) Printed wire broke between P302 pin1 and I308 pin30.

2) Video cable is failure.

3) FB315, FB306, C315 is open.

4) R327 is short or open.

NG

OK

Check all LVDS signals being output

to P307 from I308?

Failure Point

Printed wire broke between I308 and P307.

NGOK

Proceed "Checking the resolution

change IC movement" section.

5. Troubleshooting (continued)

ACER A211H/A221HQ

Go to contents page

25

Check the DVI video signal from

computer input on P303 of DVI

connector.

OK

NG

Failure Point

1) No DVI video signals output from host computer, check computer.

2) DVI Video signal cable disconnection.

Check the DVI input video signals on

I308 pin 12,13,14,15,16,17,18,19 respectively that differential input

voltage is 150 to 1200mV, and input

commond mode voltage is 3.3V.

Failure Point

In the case of the DVI_RX0+/- signal. (A DVI_RX1+/-, DVI_RX2+/- and DVI_RXC+/- signal is the same path, too.)

1)Printed wire broke between P303 pin

17, 18 and I308 pin 12. 13.

2) Video cable is failure.

3) R350, R355 open.

NG

OK

Check all LVDS signals being output

to P307 from I308?

Failure Point

Printed wire broke between I308 and P303.

NGOK

Proceed "Checking the resolution

change IC movement" section.

26

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.1.4 A bnormal sc reen (For DV I and the same f or HDMI):

5. Troubleshooting (continued)

Check the input TTL level whether is changed

when pressed function keys on the P310 pin 5,

6 (normal is high level, when push button,

generated low level)

OK NG

Failure Point

1) Function key wire disconnection.

2) Function key wire is failure.

3) Function key board is failure.

Check the input TTL level of I308 pin 50, 51

whether is changed when pressed function

keys.

OK NG

Failure Point

1) Printed wire broke among P310 pin5, R503 and I308 pin50

2) Printed wire broke among P310 pin6 ,R504 and I308 pin51

Failure Point

I308 is failure.

5.1.5 A bnormal OS D display ad just probl em:

ACER A211H/A221HQ

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27

Confirm the host computer supplies

DDC2B mode.

OK NG

Failure Point

The host machine is not communicatiog in DDC2B mode.

OK

Check the output signal of serial data /

clock on I308 pin 59, 58.

OK

NG

Failure Point

I308 is failure.

Check the voltage on P302 pin 9 that is

power DC 5 V.

NG

Failure Point

TheVideo cable is failure.

Check the signal on P302 pin12, 15 that

is serial data / clock signal.

OK NG

Failure Point

The Video cable is failure.

Failure Point

1) Printed wire broke among I308 pin 58, 59, R320, R321 and P302 pin 12,15

2) I308 maybe failure.

3) R434 ,R429 is open.

4) D306 or D308 or C320 or C321 is shorted.

28

ACER A211H/A221HQ

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5.1.6 A bnormal pl ug and play op eration( f or VGA):

5. Troubleshooting (continued)

Confirm the host computersupplies

DDC2B mode.

OK

NG

Failure Point

The host machine is not communicatiog in DDC2B mode.

OK

Check the output signal of serial data /

clock on I308 pin 122,121

OK

NG

Failure Point

I308 is failure.

Check the voltage on P303 pin14 that is

power DC 5 V.

OK

NG

Failure Point

The Video cable is failure.

Check the voltage on P303 pin 7, 6 that

is serial data / clock signal.

OK

NG

Failure Point

The Video cable is failure.

Failure Point

1) Printed wire broke between I308 pin122, 121,R344, R345 and P303 pin7,6

2) I308 maybe failure.

3) R410, R414 is open.

4) D320 or D321 or C339 or C342 is shorted.

Check the voltage on P303 pin 16 that is

4.5V.

NG

Failure Point

Printed wire broke between P303 pin 14 and pin 16.

5.1.6 A bnormal pl ug and play op eration (F or DVI and the s ame for HDMI ):

ACER A211H/A221HQ

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29

Check the horizontal sync signal on P302

pin13 TTL level.

OK NG

Failure Point

Video cable is failure.

Check the horizontal sync signal on I308

pin 22 TTL level.

OK NG

Failure Point

1) Printed wire broke between P302 pin13 and I308 pin22.

2) FB304 , R405 is open.

3) D307 ,R319 or C322 is short.

Failure Point

Proceed "Checking the resolution change IC movement" section.

Check the vertical sync signal on P302

pin14 TTL level.

OK NG

Failure Point

Video cable is failure.

Check the horizontal sync signal on I308

pin21 TTL level.

OK NG

Failure Point

1) Printed wire broke between P302 pin14 and I308 pin21.

2) FB305 or R331 is open.

3) D310,R318 or C313 is short.

Failure Point

Proceed "Checking the resolution change IC movement" section.

30

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.1.7 C hecking th e interfac e circuit of s ync signal :

5.1.7 .1 Checkin g the contro l circuit of h orizonta l sync pluse :

5.1.7 .2 Checking the con trol circu it of vertical sync p luse:

5.1.8 Checki ng the resol ution change IC mov ement:

Check +3.3V supply on I304 pin2.

OK NG

Proceed " Checking the DC/DC converter circuit"

section.

Check +1.2V supply on I305 pin 2.

OK NG

Proceed " Checking the DC/DC converter circuit"

section.

Check X301 27MHz clock input to I308 pin

127 and 128 at TTL level.

OK NG

Failure Point

1) Printed wire broke between X301 and I308 pin 127, 128.

2) C351, C352 is short or open.

3) X301 failure.

Check I308 pin 125 RSTB signal is high

level at normal operation.

OK

Check I308 pin 115,116,117 SPI signal.

OK NG

Failure Point

1) Printed wire broke between I308 pin 115, 116, 117 and I309 pin 2, 5,6.

2) I309 is failure.

Failure Point

I308 failure.

Failure Point

1) Printer wire broke between I308 pin 125 and

2) C391 is short.

3) I308 is failure.

NG

5. Troubleshooting (continued)

ACER A211H/A221HQ

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31

Check the 5V is output from P301 pin

4,5,6.

OK

NG

Failure Point

1) Power wire disconnection.

2) Power board is failure.

Check the 5V is input to I304 pin3.

OK NG

Failure Point

Printed wire broke between P301 pin 4,5,6 and I304 pin3.

Check the 3.3V is output from I304 pin2,4

Failure Point

I304 is failure or C308 short.

OK

NG

Check the 3.3V is input to I305 pin3.

OK

NG

Failure Point

Printed wire broke between I304 pin2. 4 and I305 pin3.

Check the 1.2V is output from I305 pin2,4.

Failure Point

I305 failure or C311 short.

OK NG

Failure Point

Printed wire broke between I304 pin2,4, I305 pin3

32

ACER A211H/A221HQ

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5.1.9 C hecking th e DC/DC conv erter circ uit:

5. Troubleshooting (continued)

OK

NG Proceed "No OSD display" section.

OK

Proceed "checking the resolution change

IC movement" section.

NG

Input the sync signal of computer, or

change the cable. (VGA or DVI)

When a signal isn't being input, it is indicated with "VIDEO INPUT". It is

indicated with "OUT OF RANGE" at

the time of the frequency that it can't

be distinguished.

Does OSD display when you push

MENU button.

Check if the sync signal

from computer is output and if the

video cable is connected normally.

(VGA or DVI)

5.2 Troublesh ooting for P 216H/ P226 HQ(1A1D) :

5.2.1 N o display on t he screen (S creen is bla ck and colou r of LED is ambe r):

ACER A211H/A221HQ

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33

Refer "Checking the backlight unit" section"

OK

NG

OK

Proceed "Abnormal sreen" section"

OK

NG

Check the video cable for failure. Check the host for output

signal with all black only.

1) Change pattern of video signal output on the host.

2) Reconnect the video cable.

3) Change the video cable. (VGA or DVI)

NG

OK

Failure Point

The LVDS cable is disconnected.

Is backlight light up?

Does computer output

RGB video signals? (VGA or DVI)

Check OSD menu is

display on screen when you push

the "MENU" key.

Check if the LCD module

signal cable is connected between

the Interface Board and LCD

module.

34

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.2.2 N othing dis plays on the s creen (Scr een is black a nd colour of L ED is blue):

5. Troubleshooting (continued)

Continue

OK

NG

OK

Failure Point

I301 is failure.

NG

Failure Point

1) Printed wire broke between CN301 pin9, 10, 11 and I301.

2) Check power board.

OK

Failure Point

I302 is failure.

NG

Failure Point

1) Printed wire broke between I301 pin 2, and I302 pin 3.

2) Both D313 and L313 are open.

3) I302 is failure.

NG

Check the 3.3V power are

supplied on I301 pin 2.

Check if the voltage on

I301 pin 3 that is power DC at 5V.

Check the 1.2V power are

supplied on I302.

Check if the voltage

on I302 pin 3 that is power DC at

3.3V from I301.

5.2.2 N othing dis plays on the s creen (Scr een is black a nd colour of L ED is blue)c ontinued :

ACER A211H/A221HQ

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35

OK

NG

OK

NG

Failure Point

(1) Printed wire broke between CN301 pin 9, 10,11 and I303 pin 2. (2) L301 is open.

OK

NG

OK

Failure Point

1) Printed wire broke between Q301

pin 3, R305, R307, C312 and I303 pin G.

2) Q301 is failure.

Failure Point

1) Printed wire broke between Q301

pin 1 and I310 pin 64.

2) R309 is open.

3) I310 is failure.

Failure Point

I303 is failure.

Failure Point

1) Printed wire broke between CN306 and I310 LVDS signals.

2) I310 is failure.

Failure Point

1) The LVDS cable broke between CN306 and LCD panel module.

2) LCD panel module is failure.

OK

NG

Check the 5V power are

supplied on CN306 pin 1, 2, 3, (to

the LCD panel module)

Check if the Voltage on I303

pin S that is DC power at 5V.

Check if the MOS FET Gate level

on I303 pin G, that Gate level is low.

Check the PANEL

VCC_EN signal of the Q301 pin 1

(with R309) at high level.

NG

Check the CN306 all LVDS signals.

Continue

36

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.2.2 N othing dis plays on the s creen (Scr een is black a nd colour of L ED is blue)c ontinued :

5.2.3 C hecking th e back light u nit:

OK

NG

Failure Point

1) The wire between Power +22V and Inverter +22V is broken.

2) Power board failure.

OK

NG

Failure Point

1) Printed wire broke between CN301

pin 13, and I310 pin 114.

2) R301 is open.

3) I310 is failure.

Failure Point

Back light unit of LCD module is failure.

Is +22V supplied to inverter PWB?

(by the power board)

Check the BACKLIGHT_ADJ

signal of the CN301 pin 13 from I310

pin 114 is a PWM signal.

5. Troubleshooting (continued)

ACER A211H/A221HQ

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37

OK

NG

Failure Point

1) No R, G, B video signals output from host computer, check computer.

2) VGA video signal cable disconnection.

Failure Point

In the case of the Red signal. (Green and Blue signal is the same path, too.)

1) Printed wire broke between CN302 pin 1 and

I310 pin 30.

2) Video cable is failure.

3) L303, R313, R314 are open.

4) R315 is short.

5) C316, C318 is short or open.

NG

OK

Failure Point

1) Printed wire broke between I310 and CN306.

2) LVDS wire failure.

NG

OK

Proceed "Checking the resolution change IC

movement" section.

NG

OK

Failure Point

1) Printed wire broke between I306 and P302.

2) L306, R327, R328 are open.

3) R329, R330 if is 2.2K ohm.

4) D305, D306, C330, C331 are short.

5) Video cable is failure.

Check the R, G, B video

signal from computer input on CN302

of video connector.

Check the R, G, B input

video signals on I310 pin 25, 27, 30

respectively that their level is 0.5 to 1.0

Vp-p.

Check the H, V SYNC input signals on I310 pin 21, 22 respectively that signal

and level.

Check all LVDS signals being output

to CN306 from I310?

38

ACER A211H/A221HQ

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5.2.4 A bnormal sc reen

5.2.4 .1 Abnorma l screen for V GA source

5. Troubleshooting (continued)

OK

NG

Failure Point

1) No TMDS signals output from host computer, check computer.

2) DVI-D video signal cable disconnection.

Failure Point

The DVI is high will to generated TMDS from PC host.

1) Check CN303 pin 14 if is 4.75 to 5V.

2) Printed wire broke between CN303 pin 14

and Pin16.

3) C341 is short, or R342 is open.

5) DVI-D cable is failure.

6) Printed wire broke between CN303 pin 16

and I310 pin 111.

7) I310 is failure.

NG

OK

Failure Point

1) Printed wire broke between I310 and CN306.

2) LVDS cable failure.

NG

OK

Proceed "Checking the resolution change IC

movement" section.

NG

OK

Failure Point

In the case of the RX2+/- signal. (A RX1, 0, and RXC signal is the same path, too.)

1) Printed wire broke between CN303 pin 1, 2 and I310 pin 16, 17.

2) DVI-D cable is failure.

3) R349, R350 is open.

Check the TMDS signals

from computer input on CN303 of

video connector.

Check the DVI signal to

CN303 pin 16 respectively that voltage

is 4.5 to 5 V.

Check TMDS signals on

I310 pin 12,13,14,15,16,17,18,19

respectively that their differential input

voltage is 150 to 1200 mV.

Check all LVDS signals being output

to CN306 from I310?

5.2.4 .2 Abnorma l screen for D VI source

ACER A211H/A221HQ

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39

OK

NG

Failure Point

1) Function key wire disconnection.

2) Function key wire is failure.

3) Function key board is failure.

Check the input level whether was

changed when pressed function keys on the

CN304 pin 1, 2. (Normal is 3.3V, when push button,

genertaed different voltage. Pin 1, 2 is 0.69V or

1.65V or 2.11V)

Check the input level whether was

changed when pressed function keys on the I310 pin

52, 53. (Normal is 3.3V, when push button, genertaed

0.69V or 1.65V or 2.11V)

NG

Failure Point

1) Printed wire broke between CN304 pin 1, I310 pin 52.

2) Printed wire broke between CN304 pin 2, I310 pin 53.

3) C363 or C364 is short.

4) R380 or R381 is short or open.

4) R382 or R383 is open.

Failure Point

I310 is failure

OK

40

ACER A211H/A221HQ

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5.2.5 A bnormal OS D display ad just probl em:

5. Troubleshooting (continued)

5.2.6 A bnormal pl ug and play op eration

OK

NG

Failure Point

The host machine is not communicated in DDC/ CI mode.

OK

NG

Failure Point

1) Printed wire broke between I304 pin 8, D307

and CN302 pin 9.

2) D307 is failure.

OK

NG

Failure Point

I304 is failure.

OK

NG

Failure Point

The VGA video cable is failure.

OK

NG

Failure Point

The VGA video cable is failure.

Failure Point

1) Printed wire broke between I310 pin 58, 59, I304 pin 5, 6 and CN302 pin 12, 15.

2) I310 maybe failure.

3) R334 or R335 is open.

4) C334, C335, R332, R333 is short.

Confirm the host computer supplies

DDC/CI mode.

Check the voltage on CN302 pin 9,

that is DC 5 V.

Check the voltage on I304 pin 8,

that is DC 5 V.

Check the signals if is high

level on CN302 pin 12, 15, that is I2C

data / clk signal.

Check the output signal of I2C

data / clk on I304 pin 5, 6.

5.2.6 .1 Abnorma l plug and pla y operatio n for VGA

5. Troubleshooting (continued)

ACER A211H/A221HQ

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41

OK

NG

Failure Point

The host machine is not communicated in DDC/ CI mode.

OK

NG

Failure Point

1) Printed wire broke between I305 pin 8, D311 and CN303 pin 14.

2) D311 is failure.

OK

NG

Failure Point

I305 is failure.

OK

NG

Failure Point

The DVI video cable is failure.

OK

NG

Failure Point

The DVI video cable is failure.

Failure Point

1) Printed wire broke between I310 pin 123, 124, I305 pin 5, 6 and CN303 pin 7, 6.

2) I310 maybe failure.

3) R339 or R340 is open.

4) C338, C339, R337, R338 is short.

Confirm the host computer supplies

DDC/CI mode.

Check the voltage on CN303 pin 14,

that is DC 5 V.

Check the voltage on I305 pin 8,

that is DC 5 V.

Check the signals if is high

level on CN303 pin 7, 6, that is I2C data

/ clk signal.

Check the output signal of I2C

data / clk on I305 pin 5, 6.

42

ACER A211H/A221HQ

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5.1.6 .2 Abnorma l plug and pla y operatio n for DVI

5. Troubleshooting (continued)

OK

NG

Failure Point

VGA Video cable is failure.

OK

NG

Failure Point

1) Printed wire broke between CN302 pin 13 and I310 pin 22.

2) L306 or R327 is open.

3) R330 or C331 is short.

Failure Point

Process "Checking the resolution change IC movement" section.

Check the horizontal sync signal

on CN302 pin 13 TTL level.

Check the horizontal sync signal

on I310 pin 22 TTL level.

OK

NG

Failure Point

VGA Video cable is failure.

OK

NG

Failure Point

1) Printed wire broke between CN302

pin 14 and I310 pin 21.

2) R328 is open.

3) R329 or C330 is short.

Failure Point

Process "Checking the resolution change IC movement" section.

Check the vertical sync signal

on CN302 pin 14 TTL level.

Check the vertical sync signal

on I310 pin 21 TTL level.

5.2.7 C hecking th e interfac e circuit of s ync signal :

5.2.7 .1 Checkin g the contro l circuit of h orizonta l sync pluse :

ACER A211H/A221HQ

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43

5.2.7 .2 Checking the con trol circu it of vertical sync p luse:

OK

NG

Proceed " Checking the DC/DC converter circuit" section.

OK

NG

Proceed " Checking the DC/DC converter circuit" section.

OK

NG

Failure Point

1) Printed wire broke between X301 and I310 pin 127, 128.

2) C360, C361 is short or open.

3) X301 is failure.

OK

NG

Failure Point

1) Check I310 pin125 is from high to low level, it

is 3~10ms high level, when VCC5V is turned on.

2) Printed wire broke between I310 pin 125 and

C362/R376.

3) R376 is short or open..

4) I310 failure.

OK

NG

Failure Point

1) Printed wire broke between I310 pin 115~118 and I307.

2) I311 failure.

Failure Point

I310 failure.

Check +3.3V supply on I310 pin 49, 84,

106, 62, 1

Check +1.2V supply on I310 pin 60,

73, 120. 23

Check X301 14.318MHz clock input to

I310 pin 127 and 128

Check I310 pin 125 RESET signal is

high level at normal operation.

Check I310 pin 115~118 SPI Flash

ROM interface signal.

44

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.2.8 Checki ng the resol ution change IC mov ement:

5.2.9 C hecking th e DC/DC conv erter circ uit:

OK

NG

Failure Point

1) Power wire disconnection.

2) Power board is failure.

OK

NG

Failure Point

Printed wire broke between CN301 pin 9, 10, 11 and I301 pin3.

Failure Point

I301 is failure or C304 is short.

OK NG

OK

NG

Failure Point

I302 failure or both C308 and C310 short..

Failure Point

Printed wire broke between I302 pin2 and L308 L310. Printed wire broke between I301 pin2 and L307 L309 L311 L307 L309 L311 L308 L310 open or C345 C346 C347 C350 C351 C352 C356 C357 C348 C349 C382 C353 C354 C355 short.

Check the 5V is output from

CN301 pin 9,10,11

Check the 5V is input to I301 pin3

Check the 3.3V is output

from I301 pin2

Check the 1.2V is output

from I302 pin2

Check the 3.3V or 2.6V is

input to I302 pin3

OK

Failure Point

Printed wire broke between I301 pin2 and I302 pin3. Or both D313 and L313 open or C307 short.

NG

5. Troubleshooting (continued)

ACER A211H/A221HQ

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45

OK

NG Proceed "No OSD display" section.

OK

Proceed "checking the resolution change

IC movement" section.

NG

Input the sync signal of computer, or

change the cable. (VGA)

When a signal isn't being input, it is indicated with "VIDEO INPUT". it is

indicated with "OUT OF RANGE" at

the time of the frequency that it can't

be distinguished.

Does OSD display when you push

MENU button.

Check if the sync signal

from computer is output and if the

video cable is connected normally.

(VGA)

46

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.3 Troublesh ooting for A cer A211H/A221 HQ(1A):

5.3.1 N o display on t he screen (S creen is bla ck and colou r of LED is ambe r):

5. Troubleshooting (continued)

Refer "Checking the backlight unit" section"

OK

NG

OK

Proceed "Abnormal sreen" dection"

OK

NG

Check the video cable for failure. Check the host for output

signal with all black only.

1) Change pattern of video signal output on the host.

2) Reconnect the video cable.

3) Change the video cable. (VGA)

NG

OK

NG

Failure Point

The LVDS cable is disconnected.

Is backlight light up?

Does computer output

RGB video signals? (VGA)

Check OSD menu is

display on screen when you push

the "MENU" key.

Check if the LCD module

signal cable is connected between

the Interface Board and LCD

module.

OK

NG

OK

Failure Point

I301 is failure.

NG

Failure Point

1) Printed wire broke between CN301 pin9, 10, 11 and I301.

2) Check power board.

OK

Failure Point

1) Printed wire broke between Q302 Pin C and D301 Pin A.

2)D301 or Q302 is failure.

NG

Failure Point

1) Printed wire broke between I301 pin 2, and Q302 pin E.

2) I301 is failure.

NG

Check the 3.3V power are

supplied on I301 pin 2.

Check if the voltage on

I301 pin 3 that is power DC at 5V.

Check the 1.2V power are

supplied on D301.

Check if the voltage

on Q302 pin E that is power DC at

3.3V from I301.

5.3.2 N othing dis plays on the s creen (Scr een is black a nd colour of L ED is blue):

ACER A211H/A221HQ

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47

OK

NG

OK

NG

Failure Point

Printed wire broke between CN301 pin 9, 10,11 and I301 pin S.

OK

NG

OK

Failure Point

1) Printed wire broke between Q303 pin 3, R305, R307, C309 and I302 pin G.

2) Q303 is failure.

Failure Point

1) Printed wire broke between Q303 pin 1 and I306 pin 29.

2) I306 is failure.

Failure Point

I302 is failure.

Failure Point

1) Printed wire broke between CN304 and I306 LVDS signals.

2) I306 is failure.

Failure Point

1) The LVDS cable broke between CN304 and LCD panel module.

2) LCD panel module is failure.

OK

NG

Check the 5V power are

supplied on CN304 pin 1, 2, 3, 4, 5

(to the LCD panel module)

Check if the Voltage on I302

pin S that is DC power at 5V.

Check if the MOS FET Gate level

on I302 pin G, that Gate level is low.

Check the PANEL

VCC_EN signal of the Q303 pin 1

(with R309) at high level.

NG

Check the CN304 all LVDS signals.

Continue

48

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.3.2 N othing dis plays on the s creen (Scr een is black a nd colour of L ED is blue)c ontinued :

5.3.3 C heck the bac klight uni t:

OK

NG

Failure Point

1) The wire between Power +22V and Inverter +22V is broken.

2) Power board failure.

OK

NG

Failure Point

1) Printed wire broke between CN301

pin 13, and I306 pin 56.

2) R301 is open.

3) I306 is failure.

Failure Point

Back light unit of LCD module is failure.

Is +22V supplied to inverter PWB?

(by the power board)

Check the BACKLIGHT_ADJ

signal of the CN301 pin 13 from I306

pin 56 is a PWM signal.

5. Troubleshooting (continued)

ACER A211H/A221HQ

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49

OK

NG

Failure Point

1) No R, G, B video signals output from host computer, check computer.

2) VGA video signal cable disconnection.

Failure Point

In the case of the Red signal. (Green and Blue signal is the same path, too.)

1) Printed wire broke between CN302 pin 1 and

I306 pin 13.

2) Video cable is failure.

3) R313, L304, R314 are open.

4) R315 is short.

5) C316, C318 is short or open.

NG

OK

Failure Point

1) Printed wire broke between I306 and CN304.

2) LVDS wire failure.

NG

OK

Process "Checking the resolution change IC

movement" section.

NG

OK

Failure Point

1) Printed wire broke between I306 and CN302.

2) L307, R324, R325 are open.

3) R326, R327 if is 2.2K ohm.

4) D306, D307, C324, C325 are short.

5) Video cable is failure.

Check the R, G, B video

signal from computer input on CN302

of video connector.

Check the R, G, B input

video signals on I306 pin 8, 10, 13

respectively that their level is 0.5 to 1.0

Vp-p.

Check the H, V SYNC input signals on I306 pin 16, 17 respectively that signal

and level.

Check all LVDS signals being output

to CN304 from I306?

50

ACER A211H/A221HQ

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5.3.4 A bnormal sc reen for VGA so urce:

5. Troubleshooting (continued)

OK

NG

Failure Point

1) Function key wire disconnection.

2) Function key wire is failure.

3) Function key board is failure.

Check the input level whether was

changed when pressed function keys on the

CN305 pin 1, 2. (Normal is 3.3V, when push button,

generted different voltage. Pin 1, 2 is 0.69V or

1.65V or 2.11V)

Check the input level whether was

changed when pressed function keys on the I306 pin

58, 539. (Normal is 3.3V, when push button,

genertaed 0.69V or 1.65V or 2.11V)

NG

Failure Point

1) Printed wire broke between CN305 pin 2, 1306 pin 58.

2) Printed wire broke between CN305 pin 1, 1306 pin 59.

3) C366 or C367 is short.

4) R370 or R371 is short or open.

4) R372 or R373 is open.

Failure Point

I306 is failure

OK

5.3.5 A bnormal OS D display ad just probl em:

ACER A211H/A221HQ

Go to contents page

51

OK

NG

Failure Point

The host machine is not communicated in DDC/ CI mode.

OK

NG

Failure Point

1) Printed wire broke between I303 pin 8, D308 and CN302 pin 9.

2) D308 is failure.

OK

NG

Failure Point

I303 is failure.

OK

NG

Failure Point

The VGA video cable is failure.

OK

NG

Failure Point

The VGA video cable is failure.

Failure Point

1) Printed wire broke between I306 pin 18, 19, I303 pin 5, 6 and CN302 pin 12, 15.

2) I306 maybe failure.

3) R331 or R332 is open.

4) C328, C329, D310, D311 is short.

Confirm the host computer supplies

DDC/CI mode.

Check the voltage on CN302 pin 9,

that is DC 5 V.

Check the voltage on I303 pin 8,

that is DC 5 V.

Check the signals if is high

level on CN302 pin 12, 15, that is I2C

data / clk signal.

Check the output signal of I2C

data / clk on I303 pin 5, 6.

52

ACER A211H/A221HQ

Go to contents page

5.3.6 A bnormal pl ug and play op eration fo r VGA:

5. Troubleshooting (continued)

OK

NG

Failure Point

VGA Video cable is failure.

OK

NG

Failure Point

1) Printed wire broke between CN302 pin 13 and I306 pin 16.

2) L307 or R324 is open.

3) R327 or C325 is short.

Failure Point

Process "Checking the resolution change IC movement" section.

Check the horizontal sync signal

on CN302 pin 13 TTL level.

Check the horizontal sync signal

on I306 pin 16 TTL level.

OK

NG

Failure Point

VGA Video cable is failure.

OK

NG

Failure Point

1) Printed wire broke between CN302

pin 14 and I306 pin 17.

2) R325 is open.

3) R326 or C324 is short.

Failure Point

Process "Checking the resolution change IC movement" section.

Check the vertical sync signal

on CN302 pin 14 TTL level.

Check the vertical sync signal

on I306 pin 17 TTL level.

5.3.7 C hecking th e interfac e circuit of s ync signal :

5.3.7 .1 Checkin g the contro l circuit of h orizonta l sync pluse :

ACER A211H/A221HQ

Go to contents page

53

5.3.7 .2 Checkin g the contro l circuit of v ertical sy nc pulse:

OK

NG

Proceed " Checking the DC/DC converter circuit" section.

OK

NG

Proceed " Checking the DC/DC converter circuit" section.

OK

NG

Failure Point

1) Printed wire broke between X301 and I306 pin 26, 25.

2) C388, C389 is short or open.

3) X301 is failure.

OK

NG

Failure Point

1) Check I306 pin54 is from high to low level, it

is 3~10ms high level, when VCC5V is turned on.

2) Printed wire broke between I306 pin 54 and

C383/R337.

3) R337, C383 is short or open..

4) I306 failure.

OK

NG

Failure Point

1) Printed wire broke between I306 pin 21~24 and I304.

2) I304 failure.

Failure Point

I306 failure.

Check +3.3V supply on I306 pin 51,

6

Check +1.2V supply on I306 pin 30,

53, 15.

Check X301 14.318MHz clock input to I306

pin 1 and 2

Check I306 pin 54 RESET signal is

low level at normal operation.

Check I306 pin 21~24 SPI Flash

ROM interface signal.

54

ACER A211H/A221HQ

5. Troubleshooting (continued)

Go to contents page

5.3.8 C hecking th e resoluti on change IC m ovement:

5.3.9 C hecking th e DC/DC conv erter circ uit:

OK

NG

Failure Point

1) Power wire disconnection.

2) Power board is failure.

OK

NG

Failure Point

Printed wire broke between CN301 pin 9, 10, 11 and I301 pin3.

Failure Point

I301 is failure or C303 is short.

OK

NG

OK

NG

Failure Point

D301 is failure or Q302 is failure or C307 is short.

Failure Point

Printed wire broke between D301 and L310. Printed wire broke between I301 pin2 and L308 L309. L308 L309 L310 open or C304 C338 C387 C380 C332 C333 C334 C330 C331 short.

Check the 5V is output from

CN301 pin 9,10,11

Check the 5V is input to I301 pin3

Check the 3.3V is output

from I301 pin2

Check the 1.2V is input to D301

5. Troubleshooting (continued)

ACER A211H/A221HQ

Go to contents page

55

Check output voltage +5V, +22V are right or not

NG

OK

Check power switch is turn on or not

Check power cord (P802), signal cable (P302), P802,

P103, P104 are connected right or not

Check pin 5 of I801 have same pulse or not

Check pin 1 of T802 have same pulse or not

Check peak voltage of R811 triangle pulse is under 0.8

volt or not

Check feedback circuit around I802, I803 and the other

components and repair them

It is not power board problem

Turn switch on

Check F801, D801, P802 and repair

them

Check R807, D804, I801 and repair

them

Check peripheral component of I801

and repair them

Check Q803, R813, R814, D806

R811, R815 and repair them

Check D804, R807 R811and repair

them

Repair them

OK

NG

OK

NG

Connect it right

OK

NG

OK

NG

Check C807 is over 17V or not

OK NG

OK

NG

OK NG

Check D809, C822, C823. C824, D820, C818, T802 have

same short circuit or the output +5V and+22V are over

load

Check C805 is about DC126V-380V or not

OK

NG

56

ACER A211H/A221HQ

Go to contents page

5.4 Power board troubleshooting(1A1D1H/1A1D/1A):

5.4. 1 No Power (1A1D1H/ 1A1D/1A) :

5. Troubleshooting (continued)

5.4.2 For Inverter Circuit on Power Board (1A1D1H/1A1D/1A):

Check C102 pin is around 5V. ON/OFF pin of P802 is over

2V. Brightness pin is external 3.3V

OK NG

Check pin 2 of I101 is 5V

It is not inverter problem

Check R105, C102 and repair

them. Check printed wire

Check R125, R126, R106, R107,

D109, D118, C119 I101 and repair

them

Check R115, R110, I101 and repair

them

Repair I101

Check R137, R118, R119, R117,

R138, and repair them

Repair them

OK NG

Check CCFL and repair them. Lock

P103, P104 tightly

OK

NG

Check P11 of I101 is over 2.83V

OK

NG

OK

NGOK

Check P103, P104 are connected right

OK

NG

OK

Check pin 1&pin 16 of I101 is triangle pulse

Check pin 14 of I101, there is soft start edge up to about

1.2V

Check pin 9&pin 10 of I101, there is around 0.91V

from output detection

Check SW MOS (Q101, Q105) work right

Check transformer (T101) to work it and repair it

5. Troubleshooting (continued)

ACER A211H/A221HQ

Go to contents page

57

DebugTool_V6.7.exe

58

ACER A211H/A221HQ

Go to contents page

6. Firmware Upgrade Process

Notes: (1) If the firmware version is shown as same as the current F/W version which you got from Wistron engineers, you must exit the ISP programming process. (2) The ISP programming is only required when the firmware version is previous version compared to the current version.

6.1 Hardware Configuration:

PC/HOSTMONITOR

Connect VGA cable betwe en monitor and k it

Connect USB cable betwe en PC and kit

If it shows “No USB Device”, there is a problems with

communication. You should confirm your USB

device whether be detected by your PC device

management or reconnect the USB cable.

S3. Select ISP icon.

6.2 Realtek F/W Configuration:

S1. Launch the utility of “ ”.DebugTool_V6.7.exe

S2. Select Select “USB” and “Serial Flash”.

Note: Relative firmware code can be found in the folder of

“software pack\ISP”, it depend on which model you

want to update: “1A1D1H” is used in the monitor which

have VGA, DVI and HDMI ports;

“1A1D” is used in the monitor which have VGA and DVI

ports;

“1A” is used in the monitor which have VGA port only.

6. Firmware Upgrade Process (continued)

ACER A211H/A221HQ

Go to contents page

59

S4. Select the right F/W code for the mode you want to

update. Herein we take the model of 1A1D1H and 1A1D

for example, select “Bin” as “File Type” first, then click

［BigBin］ to choose “A211H_RH_M001_0428.BIN” in the

folder of “A211H_RH_M001_0428” or

“A221HQ_RH_M001_0428.BIN” in the folder of

“A221HQ_RH_M001_0428”( you can also select hex as

file type).

6.3 How to check firmware version?

S1. Turn off the monitor, press “Power” and “e” button at the

same time for turning on the monitor.

S2. Press “Menu” button again to enter factory mode, and

you will see the firmware version.

Note: Please pay attention: Don’t change any parameter which is measured by precise machine before shipping out.

PowerMenue

S5. Press button to update the firmware.

see the message of ‘Pass’ shown on the window, it

means ISP upgrading process is completed.

Once you

60

ACER A211H/A221HQ

Go to contents page

7. Writing EDID Process

Notice Notes: Please be noted that 'INI.INI' file must be copied into 'C:\WINDOWS' root directory before running EDID program. Moreover, please be aware of not changing any parameters in the 'INI.INI' file. Especially, the upload key must keep '0' to disable file uploading process in field.

7.1 Writing EDID Procedure:

Hardware Configuration:

1. Connect the PRINTER PLUG of DDC FIXTURE with the

printer port of PC. (Refer to figure 1)

2. Plug USB A PLUG of DDC FIXTURE to USB socket of

Desktop PC. (Refer to figure 2)

3. Extend the DVI cable on DVI EXTENDING SOCKET of

DDC FIXTURE. (Refer to figure 3)

4.1 Connect the D-sub plug of Chroma with D-SUB PLUG of

DDC FIXTURE. (Refer to figure 4)

4.2 Take a video cable then connect the D-SUB PLUG and the

D-sub socket of monitor. (Refer to figure 5)

5. Connect the extended DVI cable to DVI socket of monitor.

(Refer to figure 6)

6. Re-confirm all the connectors are connected well.

DVI EXT ENDING

D-SUB P LUG

PRINT ER PLUG

SOCKE T

USB A

SOCKE T

7.2 Writing VGA/DVI Process:

S1. Chose the folder such as “P226HQ-1A1D”, (Note: It

depends on which model you want to write. 1A is used

in the monitor only have VGA port, 1A1D is used in the

monitor both have VGA and DVI ports

“P226HQ-1A1D” for a example,

“AcerDigedid_20100105_SN.exe” of

.) herein we take

select the

“P226HQ-1A1D”

to execute it.

S2. Select Model: Key in password “cedid” then select

model which one you want to write EDID code that it

depends on panel type.

USB A

PLUG

DVI EXT ENDING

SOCKE T

1 2 3

5

64

CAUTION: The timing of Chroma shall be setup at

T254/P41 before data recording. The detail setting

parameter from chroma .Please See below photo :

cedid

7. Writing EDID Process (continued)

S3. Choose “WRITE” from menu then select “Scan S/N And

Write EDID And Test DDC”.

S4. Key in PPID number(22 characters) which you can find

printed on the model lable in the input column and

below empty column. Press write button after key in

S/N.

ACER A211H/A221HQ

Go to contents page

S2. Select Model: Key in password “cedid” then select

model which one you want to write EDID code that it

depends on if the model have audio speakers, if it have

audio speakers, select P226HQ, otherwise select

NO226HQ.

61

S5. When EDID was written successfully that will show

below message on the screen.

A221HQ

2010

17

A221HQ

17

7.3 Writing HDMI Process: S1. Connect a HDMI cable between monitor and DDC

FIXTURE through HDMI transfer DVI connector. Open

the folder: “P226HQ-1H”, select

“Acer_HDMI_20100104.EXE” to execute.

cedid

S3~S5. The process of writing EDID for HDMI is same as the

process of writing EDID for VGA/DVI.

POWER

HDMI

HDMI CABLE

HDMI tr ansfer DVI co nnector

DDC MULTI-CABLE

8. ACER_LCD_A211H/A221HQ SCHEMATICS AND LAYOUTS:

8.1 ACER_LCD_A211H/A221HQ_SCHEMATICS_POWER BOARD(1A1D1H/1A1D/1A/):

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

62

A

B

C

D

E

F

P801P801

+5V

+

1000U/16V

2

C823

D118

1N4148

+22V

21

R818

R818 910/2W

910/2W

3

Q806

3904

1

GNDGND

JUMPER WIRE

R106

56K

R107

12K/1%

F8025AF802 5A

J001

C118

3P/3KV

C119

C119 470P

470P

X7R

R137

100 1%

0805

R118

220 1%

0805

GND

9 8 7 6 5 4 3 2 1

GND

P802P802

VOL MUTE EN GND GND +5V +5V NC EN PWM

1

2

1

2

R138

R138 100 1%

100 1% 0805

0805

R119

R119 133 1%

133 1%

0805

R012

R012 10K

10K

P103

1

2P

2

P104

1

2P

2

140ohm 7.5mA

137ohm 8.0mA

C003

470uF/16V

R013

1K(NC)

R010

R010 100K

100K

R0071KR007

R006

A

C006

I001

7

INL

C013

C013 22nF

22nF

R003

4.75K

C006

10uF

4

+OUT_L

PVDDL

-OUT_L

PGNDL

PGNDR

-OUT_R

+OUT_R

INR

12

C014

C014 22nF

22nF

R004

4.75K

FB002

FB002 PBY201209T-121Y-N

PBY201209T-121Y-N

JUMP WIRE

J002

J003

JUMP WIRE

C004

C004 1uF

1uF

L001

1

PBY201209T-121Y-N

L002

3

PBY201209T-121Y-N

2

17

L003

16

PBY201209T-121Y-N

L004

18

PBY201209T-121Y-N

R005

R005 10K

10K

R0091KR009

R019

1K

33K

R022

R022 22K

22K

C019

0.1uF

R0081KR008

1K

C018

0.1uF

C016

C011

C011 220pF

220pF

C012

C012 220pF

220pF

1nF

D002

R018

R018 33K

33K

R021

R021 22K

22K

C015

1nF

MMSZ5232BS(NC)

P001P001

4

L+

3

L-

2

R-

1

R+

P002

PH-JACK-3P-Green

1 2

3

D001

MMSZ5232BS(NC)

7

GND

6

AIN_R

5

AIN_L

4

GND

3

AOUT_R

2

AOUT_L

1

GND

P003

P003 JWT-A2001WV2-07

JWT-A2001WV2-07

B

C

D

E

C002

ZD001

6.8B

C008

1uF

C005

10K(NC)

100K

C017

0.1uF

C005

1uF

1K

R016

10K

R011

C020

0.1uF

C001

1uF

6

13

9

5

R0151KR015

11

1K

14

8

C010

1uF

C009

1uF

PBY201209T-121Y-N

C022

C022 470pF

470pF

C002 10uF

10uF

VDD

GND

VOLUME

MUTE

NC

EN

VDC

C021

R002

R002 10K

10K

15

PVDDR

PAM8603

SOP-18

VREF

10

FB001

F

F801

R802

CT

7

8

HV

4

VCC

OUT

CS

COMPGND

GND-1

ZD101

6.8B

R102

174K 1%

0805

J005

R802

SCK103

0.33U/275V

6

5

3

2

C812

0.01U

X7R

R115 10

R103 680K 1%

GND

JUMP WIRE

C801

C813

0.1U

0.1U X7R

X7R

GND-1 GND-1

C811

C811 470P

470P

X7R

12

C101

+

0.1uF

C102

22UF/50V

GND

R116 510K

0805

1

DRV1

2

VDD

3

SEL

4

RT1

0805

5

RT

6

ENAPWM

7

PID

8

12

TIMER

+

C103

2.2UF/50V

J006

JUMP WIRE

R822

330K

0805

R821

330K

0805

R820

330K

0805

12

+

C807

22UF/50V

R101

22

T26

0805

I101

OZ9919

1

DRV2

GND

SSTCMP

OLP2

OLP1

VSEN

ISEN2

ISEN1

1 3

ET-20

T801

23

J007

JUMP WIRE

ZD801

22B

Q101

2N7002

GND

16

15

14

13

12

11

10

9

42

C819

0.1U/275V(NC)

R815

200/0805

0.047UF

C106

X7R

4

KBP306G

D801

22/1206

R108

J008

JUMP WIRE

-

R814

0805

R110

3

2

2K

10

T26

1

+

D806

R813

100/0805

GND

R114 100K

T26

R117 10KR117 10K

J009

JUMP WIRE

C805

100U/450V

GND-1

21

R807

0

1N4148

4

R804

R804 39K

39K

1206

+

R806

R806 39K

39K

1206

23

Q803

1

7N65C

I802

LTV817

R109

Q102

2K

3904

0805

Q103

Q103 3906

3906

R113

510K

510K 0805

0805

GND

C806

0.01U/1KV

D803

PG108R

D804

UF4005G

L803

BEAD/6mm

C810

100P(NC)

1KV X7R

R811

0.51/2W

GND-1

1

23

C828

4.7U/50V

R111

22

0805

GND

+

R112

510K

510K 0805

0805

C107

C107 68P

68P

NC

GND

R826

R826 1K

1K 0805

0805

I803

AP431

GNDGND

C152

C152 220P(NC)

220P(NC)

X7R

GND

1

L

3

G

2

N

GND

1

G801G801

1

GND

R104

R104 10K

10K T26

T26

R105

R105 100K

100K 0805

0805

GND

I801

LD7575B

C803

NC

NC X7R

X7R

J004

JUMP WIRE

3.15AH250V

C820

470P/250V

GND

C825

470P/250V

7

1

R808

100K 1%

0805

GND

D802

D802 P6KE180A

P6KE180A

21

GND-1

R825

1K

1K 0805

0805

+22V

T802

ER28

3 10

1

4

5

C802

3300P/250V

C832

3300P/250V

C827

0.01UF

X7R

GND

1

S2

2

G2

3

S1

4

G1

12

+

C125

330UF/35V

GND

Q105

AOP609

9

8 7

6

R827

30.1K 1%

30.1K 1% 0805

0805

GND

D2

D1

D809

2 1

SF34G

C816

1000P

500V X7R

D820

SB1060FCT

D810

2 1

SB560

C821

1000P

100V X7R

R823

R823 270

270 0805

0805

R824

31.6K 1%

31.6K 1% 0805

0805

8

7

6

5

GND

R851

1K 1%

0805

12

+

C135

330UF/35V

12

+

C134

330UF/35V

+

C822

1000U/16V

T102

1 2 3

4 5 6710

EEL19-B

1N4148

D109

GND

+

C818

330U/35V

+

1000U/16V

GND GNDGND

21

D811

D811 27B

27B

R828

R828 1K

1K 0805

0805

R817

R817 1K

1K 0805

0805

L802

BEAD/6mmx2

C824

C116

C116 18P/3KV

18P/3KV

R125

3M 1/2W

R126

3.3K 1%

3.3K 1% 0805

0805

GND GND

G

J013

J010

JUMP WIRE

J017

JUMP WIRE

J011

JUMP WIRE

J018

JUMP WIRE

J012

JUMP WIRE

J019

JUMP WIRE

J013

JUMP WIRE

J021

JUMP WIRE

J014

JUMP WIRE

J015

JUMP WIRE

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9382-SF

G

ACER A211H/A221HQ

63

8.2 ACER_LCD_A211H/A221HQ_SCHEMATICS_FUNCTION KEY BOARD(1A1D1H/1A1D/1A):

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

P601

7

A

8

JWT-CON6-12-GP

B

C

D

E

F

G

POWER

1

LEDAMBER

2

LEDBLUE

3

GND

4

ADC2

5

ADC1

6

D607

(NC)MMSZ5234BS-7-F-GP-U

D603

A K

D605

AK

1 2

C603 (NC)SCD1U25V3ZY-1GPC603 (NC)SCD1U25V3ZY-1GP

D606

AK

1 2

C604 (NC)SCD1U25V3ZY-1GPC604 (NC)SCD1U25V3ZY-1GP

D607

D604

A K

(NC)MMSZ5234BS-7-F-GP-U

12

A K

R606

R606 100R2J-2-GP

100R2J-2-GP

1 2

R607

R607 100R2J-2-GP

100R2J-2-GP

1 2

R601

1 2

100KR3F-GP

R602

1 2

56KR3F-GP

R603

1 2

15KR3F-GP

R604

1 2

100KR3F-GP

R605

1 2

56KR3F-GP

C607

C607 (NC)SCD1U25V3ZY-1GP

(NC)SCD1U25V3ZY-1GP

R608

R608 100R2J-2-GP

100R2J-2-GP

1 2

R609

R609 100R2J-2-GP

100R2J-2-GP

1 2

S601

S601 (NC)SW-TACT-2P-2-GP

(NC)SW-TACT-2P-2-GP

1 2

NP1 NP2

S607

123

4

SW-TACT-173-GP

12

C602

C602 SCD1U25V3ZY-1GP

SCD1U25V3ZY-1GP

12

C606

C606 SCD1U25V3ZY-1GP

SCD1U25V3ZY-1GP

S602

123

SW-TACT-173-GP

S603

123

SW-TACT-173-GP

S604

123

SW-TACT-173-GP

S605

123

SW-TACT-173-GP

S606

123

SW-TACT-173-GP

4

Power

12

C601

C601 SCD1U25V3ZY-1GP

SCD1U25V3ZY-1GP

12

C605

C605 SCD1U25V3ZY-1GP

SCD1U25V3ZY-1GP

2 4

1 3

E

AUTO

Menu

Left

Right

D601

D601 (NC)LED-BY-3-GP

(NC)LED-BY-3-GP

Amber

1

Blue

2

D602

D602 (NC)LED-BY-3-GP

(NC)LED-BY-3-GP

Amber

1

Blue

2

YELLOW

BLUE

3

D608

D608 LED-BY-9-GP

LED-BY-9-GP

P601

For ESD

R610

1 2

(NC)100KR3F-GP

R611

1 2

R612

1 2

R613

1 2

R614

1 2

E

S602 S606

(NC)100KR3F-GP

AUTO

S603 S604 S605

MENU

LEFT < RIGHT >

D602

D601

LED

POWER

Go to contents page

A

B

C

D

E

F

S601

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L0202-1

8.3 :

ACER_LCD_A211H/A221HQ_SCHEMATICS_INTERFACE BOARD

8.3.1 ACER_LCD_A211H/A221HQ_SCHEMATICS_INTERFACE BOARD_1A1D1H

8.3.1.1 ACER_LCD_A211H/A221HQ(1A1D1H)_SCHEMATICS_BLOCK DIAGRAM:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

64

A

B

C

D

Power Board

Brightness, Inv_On/Off

+5V

P301

DC-DC

I304

5v-3.3v

I305

3.3v-1.8v

I307

TMDS

RX0~2+/-, RXC+/-

DDC 24LC12B

LCD Panel Modul

LVDS

Scaler

RTD2482D-GR V.E.

e

P307

I308

I309

Flash PM25LV020

X301

XTAL 27MHZ

TQ2 Controll Board

P306

BLOCK Diagram

er

Upstream

OSD Key Board

A

B

C

USB

D

E

F

G

I303

DDC 24LC02B

DDC_SCL_D1 DDC_SDA_D1

DVI-D

Di

gi

Vi

deo

Input

tal

TMDS

RX0~2+/-, RXC+/-

R,G,B,Hs,Vs

P303

DSUB

Analog Video Input

I302

DDC 24LC02B

D_SUB_SCL D_SUB_SDA

P302

P308

AUDIO PORT

Power Key Board

USB Board

AC 110/220v Input

AUDIO PORT

Audi o Input (Reserved)

I306

DDC 24LC02B

DDC_SCL_D1 DDC_SDA_D1

HDMI

HDMI Input

P305

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

E

F

G

ACER A211H/A221HQ

65

8.3.1.2 ACER_LCD_A211H/A221HQ _SCHEMATICS_INTERFACE_BD_POWER:

(1A1D1H)

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

+5V

R477

NC/4K7_5%

R0402

A

B

C

P301

STANDBY BKLT_EN BKLT_ADJ +5V +5V +5V GND GND

MUTE VOLUME AUDIO_EN GND

JWT-A2001WV2-12

CN20-12

BACKLIGHT_ADJ

1 2 3 4 5 6 7 8

9 10 11 12

NC/0.1uF_16V

CM0402

C385

for USB model add R478

R478 NC/0K_5%

MUTE VOLUME AUDIO_EN

R302 4K7_5%

R0402

R478 NC/0K_5%

0.1uF_16V

CM0402

BACKLIGHT_EN BACKLIGHT_ADJ

C304

P5V

1 3

R0402

Volume

R301

NC/4K7_5%

R0402

Q315

2

NC/MMBT3904

SM-NPN

USB_EN

+5V

FB302 PBY201209T-170Y-S

D347 NC/DFLS240L

R497 0_5%

R0402

USB_EN

BEAD0805

Power-DI123

Adj_BACKLIGHT

C301

0.1uF_16V

CM0402

P5V

+

P5V

C302

C302 100uF_16V

100uF_16V

EC25-63

P5V P3P3V

AP1084K33L

TO-263-GOI

C397

0.1uF_16V

CM0402

TO263

I304

3

VIN

FB318 NC/PBY201209T-170Y-S

D346 S1A

I305

VI3VO

AP1122DG

TO-252-GOI

VOUT

TAB

VSS

1

SMA

TO252

GND14

4

2

4

BEAD0805

2

+

C306

C306 100uF_16V

100uF_16V

EC25-63

C308

0.1uF_16V

CM0402

+

C310

C310 100uF_16V

100uF_16V

EC25-63

P1P2V

C311

0.1uF_16V

CM0402

P1P2V

Go to contents page

P3P3VP5V

A

B

C

D

E

F

G

+5V

MUTE

C386

0.1uF_16V

CM0402

AUDIO_EN

C387

0.1uF_16V

CM0402

BACKLIGHT_EN

C303

0.1uF_16V

CM0402

FB301 PBY201209T-170Y-S

BEAD0805

R404

R404 10K_5%

10K_5%

R0402

R402

R402 0_5%

0_5%

R0402

R403

R403 0_5%

0_5%

R0402

R304

R304 4K7_5%

4K7_5%

R0402

Audio_MUTE

AUDIO_EN_MCU

on_BACKLIGHT

C312

C312 NC/0.1uF_16V

NC/0.1uF_16V

CM0402

I301

I301 AO3419

AO3419

SM-FET

2 3

D

Hole1

Hole1 Case_GND

Case_GND

MH38R75

Hole2

Hole2 Case_GND

Case_GND

MH38R75

E

8 7 6 5

1

2

4

3

8 7 6 5

1

2

4

3

F

VLCD

FB314 PBY201209T-170Y-S

1

C376

0.1uF_16V

CM0402

BEAD0805

C377

0.1uF_16V

CM0402

VLCD

G

on_Panel

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9141-1

8.3.1.3 ACER_LCD_A211H/A221HQ(1A1D1H)_SCHEMATICS＿INTERFACE_BD_VGA & DDC INTERFACE:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

66

A

B

C

P302

D-SUB_15P

DSUB-15PC

16 17

VGA_5V

VGA_RED

1 9 2 10 3 11 4 12 5 13 6 14 7 15 8

VGA_RED VGA_5V VGA_GREEN

VGA_BLUE

VGA_SDA VGA_CONn VGA_HSYNC VGA_REDVGA_VSYNC VGA_GRNVGA_SCL VGA_BLU-

D309

NC/MMSZ5232BS

SOD323

D303

D315

MMBD7000

SOT-23

P5V P5V P5V

1

C325

0.1uF_16V

CM0402

VGA_CONn

D303

3

MMBD7000

SOT-23

2

0.1uF_16V

CM0402

R316 100_1%

1

C326

R0402

3

2

D304

MMBD7000

SOT-23

1

C327

0.1uF_16V

CM0402

3

2

D305

D305 MMSZ5232BS

MMSZ5232BS

SOD323

VGA_RED-

VGA_GREEN

VGA_GRN-

VGA_BLUE

VGA_BLU-

C323

NC/0.1uF_16V

CM0402

FB315

SBK160808T-110Y-S

BEAD0603

FB316

SBK160808T-110Y-S

BEAD0603

FB317

SBK160808T-110Y-S

BEAD0603

C335

C335 NC

NC

CM0402

C336

C336 NC

NC

CM0402

C334

C334 NC

NC

CM0402

FB306

R326

R326 75_1%

75_1%

R0402

R323

R323 75_1%

75_1%

R0402

R324

R324 75_1%

75_1%

R0402

SBK160808T-600Y-S

BEAD0603

FB307

SBK160808T-600Y-S

FB308

SBK160808T-600Y-S

BEAD0603

C329

C329 5pF

5pF

CM0402

C330

C330 5pF

5pF

CM0402

C331

C331 5pF

5pF

CM0402

R327 75_1%

R406 100_1%

R322 75_1%

R330 100_1%

R328 470_1%

R325 75_1%

R407 100_1%

R0402

C315 47nF_16V

C317 47nF_16V

C316 47nF_16V

C319 47nF_16V

C328 47nF_16V

C318 47nF_16V

C314 47nF_16V

CM0402

VGA_DETn

RTD_R+

RTD_R-

RTD_G+

RTD_G-

RTD_B+

RTD_B-

SOG

R476

R476 NC/1M_5%

NC/1M_5%

R0402

A

B

C

D

E

F

G

FB304 SBK160808T-451Y-S

FB305 SBK160808T-451Y-S

P5V

VGA_5V

C388

0.1uF_16V

CM0402

VGA_SCL

VGA_SDA DDC_SDA_VGA

R320 R321

R321

47_1%

R0402R320

R0402

47_1%

R0402

BEAD0603

D311

BAT54C

SOT-23-BAT54

D308

D308 MMSZ5232BS

MMSZ5232BS

SOD323

D348

MMSZ5232BS

SOD323

D306

D306 MMSZ5232BS

MMSZ5232BS

SOD323

D310

D310 MMSZ5232BS

MMSZ5232BS

SOD323

R314

R314 4K7_5%

4K7_5%

R0402

C320

C320 47pF_25V

47pF_25V

CM0402

R318

R318 2K4_5%

2K4_5%

R0402

R315

R315 4K7_5%

4K7_5%

R0402

C321

C321 47pF_25V

47pF_25V

CM0402

D307

D307 MMSZ5232BS

MMSZ5232BS

SOD323

R319

R319 2K4_5%

2K4_5%

R0402

C324

0.1uF_16V

CM0402

DDC_SCL_VGA

R405 100_1%

R331 100_1%

R0402

DDC5V_VGA

I302

8

VCC

7

WP

6

SCL

5

SDA

M24C02_WMN6T

SOIC-8P

GND

RTD_H

C313

C313 22pF_50V

22pF_50V

CM0402

C322

C322 12pF_25V

12pF_25V

CM0402

RTD_V

D

E

R408

R408 10K_5%

10K_5%

R0402

1

A0

2

A1

3

A2

4

R317 100_1%

R0402

DDC_WP

DDC_SCL_VGADDC_SCL_VGA DDC_SDA_VGADDC_SDA_VGA

DDC_SCL_VGA DDC_SDA_VGA

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9141-1

8.3.1.4 ACER_LCD_A211H/A221HQ ＿SCHEMATICS_INTERFACE_BD_DVI&DDC INTERFACE:

(1A1D1H)

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

67

A

B

C

P303

27

RX2-

29

RX2+

31

GND RX4-

RX4+

SCL

SDA

VS

RX1-

RX1+

GND RX3-

RX3+

5V

GND

HP

RX0-

RX0+

GND RX5-

RX5+

GND

RXC+

RXC-

32 30 28

DVI-D_24P

DVI-24PA

DVI_RX2DVI_RX2+

DVI_RX1-

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

17 18 19 20 21 22 23 24

DVI_RX2DVI_RX2+

DVI_SCL DVI_SDA

DVI_RX1DVI_RX1+

DVI_5V DVI_CONn

DVI_5V

D323

D323 NC/MMSZ5232BS

NC/MMSZ5232BS

SOD323

DVI_5V

C338

0.1uF_16V

CM0402

R340

R340 1K_5%

1K_5%

R0402

D324

D324 MMSZ5232BS

MMSZ5232BS

SOD323

C337

0.1uF_16V

CM0402

DVI_CONn

R341 100_1%

R505 100_1%

R0402

DVI_RX1+

DVI_RX0-DVI_RX0DVI_RX0+DVI_RX0+

DVI_RXC+DVI_RXC+ DVI_RXC-DVI_RXC-

R343 10_5% R0402R343 10_5% R0402 R347 10_5% R0402R347 10_5% R0402

R349 10_5% R0402R349 10_5% R0402 R346 10_5% R0402R346 10_5% R0402

C340

D322

D322 MMSZ5232BS

MMSZ5232BS

SOD323

R355 10_5% R0402R355 10_5% R0402 R350 10_5% R0402R350 10_5% R0402

R336 10_5% R0402R336 10_5% R0402 R348 10_5% R0402R348 10_5% R0402

C340

0.1uF_16V

CM0402

HDCP_HPDn

DVI_RXC-DVI_RX1+

DVI_DETn

HDCP_HPDn

RX2N RX2P

RX1N RX1P

DVI_DETn

RX0N RX0P

RXCP RXCN

A

B

C

D

E

F

G

DVI_SCL DVI_SDA

P5V

DVI_5V

R345 R344

R344

D325

BAT54C

SOT-23-BAT54

47_1%

R0402R345

R0402

47_1%

R0402

MMSZ5232BS

SOD323

D321

D321 MMSZ5232BS

MMSZ5232BS

SOD323

D349

D320

D320 MMSZ5232BS

MMSZ5232BS

SOD323

R338

R338 12K_5%

12K_5%

R0402

C342

C342 47pF_25V

47pF_25V

CM0402

R339

R339 12K_5%

12K_5%

R0402

C339

C339 47pF_25V

47pF_25V

CM0402

C341

0.1uF_16V

CM0402

DDC_SCL_DVI DDC_SDA_DVI

DDC5V_DVI

I303

8

VCC

7

WP

6

SCL

5

SDA

M24C02_WMN6T

SOIC-8P

GND

R460

R460 NC/10K_5%

NC/10K_5%

R0402

D341

R462

R462 NC/10K_5%

NC/10K_5%

R0402

R337

R337 10K_5%

10K_5%

R0402

1

A0

2

A1

3

A2

4

D341

1

I/O 1 GND I/O 23I/O 3

IP4223-CZ6

SOT23-6

R0402

I/O 4 VCC

2

R464

R464 NC/10K_5%

NC/10K_5%

R0402

R342 100_1%

6 5 4

DDC_SCL_DVIDDC_SCL_DVI DDC_SDA_DVIDDC_SDA_DVI

P5V P5V

C378

0.1uF_16V

CM0402

R465

R465 NC/10K_5%

NC/10K_5%

R0402

DDC_WP

DDC_SCL_DVI DDC_SDA_DVI

DVI_RX2-DVI_RX0-

R463

R463 NC/10K_5%

NC/10K_5%

R0402

D342

1 2

IP4223-CZ6

SOT23-6

DVI_RX2+DVI_RX0+

R466

R466 NC/10K_5%

NC/10K_5%

R0402

I/O 1 GND I/O 23I/O 3

R461

R461 NC/10K_5%

NC/10K_5%

R0402

I/O 4 VCC

DVI_RXC+DVI_RX1-

D

6 5 4

C379

0.1uF_16V

CM0402

E

R467

R467 NC/10K_5%

NC/10K_5%

R0402

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9141-1

8.3.1.5 ACER_LCD_A211H/A221HQ ＿SCHEMATICS_INTERFACE_BD_HDMI:

(1A1D1H)

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

P305

20

A

B

C

D

SHELL1

21

SHELL2

HDMI_19P

HDMI-DIP-19P

D2 Shield

D1 Shield

D0 Shield

CK Shield

CE Remote

DDC CLK

DDC DATA

HP DET

D2+

D2-

D1+

D1-

D0+

D0-

CK+

CK-

NC

GND

+5V

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

C349

0.1uF_16V

CM0402

0.1uF_16V

CM0402

C390

0.1uF_16V

CM0402

P5V

C389

D338

R480 NC/0_5%

HDMI_5V

DET_HDMI

D339

D339 MMSZ5232BS

MMSZ5232BS

SOD323

R0402

R359

R359 1K_5%

1K_5%

R0402

D340

D340 MMSZ5232BS

MMSZ5232BS

SOD323

DET_HDMI

HDMI_HPD

R484 0_5% R0402R484 0_5% R0402

R485 0_5% R0402R485 0_5% R0402 R486 0_5% R0402R486 0_5% R0402

R487 0_5% R0402R487 0_5% R0402 R488 0_5% R0402R488 0_5% R0402

R489 0_5% R0402R489 0_5% R0402 R490 0_5% R0402R490 0_5% R0402

R491 0_5% R0402R491 0_5% R0402

HDMI_SCL HDMI_SDA

D327

D327 NC/MMSZ5232BS

NC/MMSZ5232BS

SOD323

HDMI1_D2+

HDMI1_D2HDMI1_D1+

HDMI1_D1HDMI1_D0+

HDMI1_D0HDMI1_CK+

HDMI1_CKCEC

R470

R470 10K_5%

10K_5%

R0402

HDMI1_D0-

R472

R472 10K_5%

10K_5%

R0402

HDMI1_D2+

HDMI1_D2HDMI1_D1+

HDMI1_D1HDMI1_D0+

HDMI1_D0HDMI1_CK+

HDMI1_CKCEC

D344

1

I/O 1

2

GND I/O 23I/O 3

IP4223-CZ6

SOT23-6

HDMI1_D0+

HDMI1_D1+

R468

R468 10K_5%

10K_5%

R0402

I/O 4

VCC

HDMI1_D1-

6 5 4

R473

R473 10K_5%

10K_5%

R0402

P5V

C381

0.1uF_16V

CM0402

D354

D354 NC

NC

SOD523

D355

D355 NC

NC

SOD523

HDMI1_D2-

R471

R471 10K_5%

10K_5%

R0402

HDMI_SDA

HDMI_SCL

R474

R474 10K_5%

10K_5%

R0402

D343

1

I/O 1

2

GND I/O 23I/O 3

IP4223-CZ6

SOT23-6

D345

1

I/O 1

2

GND I/O 23I/O 3

IP4223-CZ6

SOT23-6

HDMI1_D2+

I/O 4

VCC

HDMI1_CK-

R469

R469 10K_5%

10K_5%

R0402

I/O 4

VCC

6 5 4

HDMI1_CK+

C380

0.1uF_16V

CM0402

R475

R475 10K_5%

10K_5%

R0402

DDC5V_HDMI

P5V

C382

0.1uF_16V

CM0402

A

B

C

D

ACER A211H/A221HQ

Go to contents page

68

E

F

G

P5V

HDMI_5V

BAT54C

SOT-23-BAT54

D351

D351 NC/MMSZ5232BS

NC/MMSZ5232BS

SOD323

HDMI1_SDA HDMI1_SCL

HDMI_SCL HDMI_SDA

DDC5V_HDMI

D350

D350 MMSZ5232BS

MMSZ5232BS

SOD323

R358 R356

R356

C395

NC/47pF_25V

CM0402

100_1%

R0402R358

R0402

100_1%

R0402

4K7_5%

R0402

R352

R353

C396

C396 NC/47pF_25V

NC/47pF_25V

CM0402

4K7_5%

R0402

10K_5%

R354

R479

R0402

DDC5V_HDMI

I306

8

VCC

7

WP

6

SCL

5

SDA

M24C02_WMN6T

SOIC-8P

100_1%

R0402

A0 A1 A2

VSS

1 2 3 4

DDC_WP

C350

0.1uF_16V

CM0402

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9141-1

E

F

G

8.3.1.6 ACER_LCD_A211H/A221HQ ＿SCHEMATICS_INTERFACE_BD_SCALER/RTD2482D:

(1A1D1H)

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

69

A

B

C

D

E

F

C373

0.1uF_16V

CM0402

I307

1

A0

2

A1

3

A2 GND4SDA

M24C16_WMN6T

SOIC-8P

R438

10K_5%

R0402

R431

NC/10K_5%

R0402

VCC

WP

SCL

PVCC_3V3

C372

0.1uF_16V

CM0402

8 7 6 5

LED_1 LED_2 KEY2_SCL KEY1_SDA

PVCC_3V3

I309

8

VDD

7

HOLD#

3

WP# VSS4SDI

PM25LV010A

SOIC-8P

R440

R440 4K7_5%

4K7_5%

R0402

R411 0_5%

Volume

2

SDO

1

CE#

6

SCK

5

C400

NC

CM0402

WP_PRO

R0402

R399 0_5% R0402R399 0_5% R0402 R398 0_5% R0402R398 0_5% R0402

LED_1 LED_2 KEY2_SCL KEY1_SDA

R492 4K7_5%

R0402

R423 22_1% R0402R423 22_1% R0402 R428 22_1% R0402R428 22_1% R0402

R432 22_1% R0402R432 22_1% R0402

R391

R427 100_1%

P5V

R430

4K7_5%

R0402

1 3

Shielding

22_1% R0402

R0402

EESCL EESDA

Q314

2

MMBT3904

SM-NPN

CEC

HDMI_HPD

HDCP_HPDn

P1P2V

R442 NC/0_5%

R0402

PVCC_3V3

R389

R389 27K_5%

27K_5%

R0402

SDOUT

CE

CLK

SDIN

WP

P3P3V

FB311 PBY201209T-170Y-S

P1P2V

FB312 PBY201209T-170Y-S

PVCC_3V3

R459

R0402

NC/4K7_5%

Audio_MUTE

AUDIO_EN_MCU

PVCC_3V3

VCCK_1V2

DDC_SCL_DVI DDC_SDA_DVI HDMI1_SDA HDMI1_SCL

PVCC_3V3

R506

R506 NC/4K7_5%

NC/4K7_5%

R0402

CE

R441

R441 4K7_5%

4K7_5%

R0402

BEAD0805

R0402

R363 100_1%

PVCC_3V3

POWER

LED_1

/ATTN

LED_2

R483 10K_5%

C371 0.1uF_16V

CM0402

R410 22_1% R0402R410 22_1% R0402 R414 22_1% R0402R414 22_1% R0402 R439 22_1% R0402R439 22_1% R0402 R436 22_1% R0402R436 22_1% R0402

R437

R437 4K7_5%

4K7_5%

R0402

C391

C391 NC/1uF_10V

NC/1uF_10V

CM0402

PVCC_3V3

FB319 PBY201209T-170Y-S

C353

C353 10uF_10V

10uF_10V

CM0805

VCCK_1V2

FB320 PBY201209T-170Y-S

C357

C357 10uF_10V

10uF_10V

CM0805

USB_EN

on_BACKLIGHT

Adj_BACKLIGHT

PVCC_3V3

R0402

R375

R374

NC/4K7_5%

C370

0.1uF_16V

CM0402

WP

CLK SDIN SDOUT CE

XO XI

PVCC_3V3

R426

R426 6K2_5%

6K2_5%

R0402

TMDS_3V3

BEAD0805

ADC_1V2

BEAD0805

R0402

R501 100_1%

102

I308

103

SD2/SPDIF2/TCON[8]/GPIO/IICSCL/PWM1/AR3N

104

SD1/SPDIF1/TCON[5]/GPIO/IRQ/IICSDA/AR2P

105

SD0 / SPDIF0 / TCON[9] / GPIO / AR2N

106

PVCC

107

PGND

108

MCK/TCON[7]/GPIO/AR1P

109

SCK/TCON[3]/GPIO/AR1N

110

WS/TCON[6]/GPIO/SDT

111

SD0/SPDIF0/TCON[4]/GPIO/SPDIF1

112

SD1/ SPDIF1/TCON[9]/GPIO/WS

113

SD2/SPDIF2/TCON[1][11]/GPIO/IrDA/SCK

114

SD3/SPDIF3/TCON[13]/GPIO/VCLK/MCK

115

SPI_SCLK/SeriesData

116

SI/MCU_SCLK

117

SO/SCSB

118

CEB/IRQB

119

GPIO/PWM5/SPDIF1

120

VCCK

121

DDCSCL3/GPIO/AUX-CH_P1

122

DDCSDA3/GPIO/AUX-CH_N1

123

DDCSDA2/GPIO/AUX-CH_N0

124

DDCSCL2/GPIO/AUX-CH_P0

125

RESETB

126

CEC/GPIO/PWM1/SPDIF2

127

XO

128

XI

R433 NC/6K2_5%

R0402

TMDS_3V3

101

SD3/ SPDIF3/TCON[10]/GPIO/PWM0/AR3P

DP_VDD/TMDS_VDD

1

2

C354

0.1uF_16V

CM0402

LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M

95

91

97

92

94

98

100

96

99

93

GPIO/PWM5/TCON[0]/AG1N

GPIO/PWM2/TXE0+_10b/AG2P

GPIO/PWM4/TCON[12][3]/AG1P

DHS/TXE0-_8b/TXE2-_10b/ACLKN

DVS/GPIO/PWM1/TXE1-_10b/AG3N

DENA/TXE0+_8b/TXE2+_10b/ACLKP

DCLK/GPIO/PWM0/TXE1+_10b/AG3P

GPIO/PWM3/TCON[11][6]/TXE0-_10b/AG2N

ARED0/ARED2/TXE1-_8b/TXEC-_10b/AB1N

ARED1/ARED3/TXE1+_8b/TXEC+_10b/AB1P

PVCC_3V3

CM0402

C362 0.1uF_16V

86

85

88

87

89

90

ARED2/ARED4/TXE2-_8b/TXE3-_10b/AB2N

ARED6/AGRN2/TXE3-_8b/TXO0-_10b/BR1N

ARED4/ARED6/TXEC-_8b/TXE4+_10b/AB3N

ARED3/ARED5/TXE2+_8b/TXE3+_10b/AB2P

ARED5/ARED7/TXEC+_8b/TXE4+_10b/AB3P

79

84

81

83

78

80

82

PVCC

PGND

ARED7/AGRN3/TXE3+_8b/TXO0+_10b/BR1P

AGRN4/GPIO/ABLU2/TXO2-_8b/TXOC-_10b/BG1N

AGRN2/GPIO/AGRN6/TXO1-_8b/TXO2-_10b/BR3N

AGRN0/GPIO/AGRN4/TXO0-_8b/TXO1-_10b/BR2N

AGRN5/GPIO/ABLU3/TXO2+_8b/TXOC+_10b/BG1P

AGRN3/GPIO/AGRN7/TXO1+_8b/TXO2+_10b/BR3P

AGRN1/GPIO/AGRN5/TXO0+_8b/TXO1+_10b/BR2P

RTD2482RD/RTD2482D/RTD2482

QFP128

TMDS_REXT

LANE0P/RX2P_0

LANE0N/RX2N_0

LANE1P/RX1P_0

LANE1N/RX1N_0

LANE2P/RX0P_0

LANE2N/RX0N_0

LANE3P/RXCP_0

LANE3N/RXCN_0

DP_GND/TMDS_GND

LANE0P/RX2P_1

LANE0N/RX2N_1

LANE1P/RX1P_1

LANE1N/RX1N_1

LANE2P/RX0P_1

LANE2N/RX0N_1

LANE3P/RXCP_1

LANE3N/RXCN_1

DP_VDD/TMDS_VDD2

3

4

5

HDMI1_D1-

HDMI1_D0-

HDMI1_D0+

6

7

8

HDMI1_D2-

HDMI1_D1+

HDMI1_D2+

9

10

11

HDMI1_CK-

HDMI1_CK+

C383

C383 10uF_10V

10uF_10V

CM0805

12

RX0N

13

14

RX0P

RX1N

0.1uF_16V

AVS021AHS022ADC_VDD23B0-24B0+25G0-26G0+27SOG028R0-29R0+30GPI/B1- / V8_7

15

16

17

18

19

20

RX1P

RX2P

RX2N

RXCP

RXCN

RTD_V

RTD_H

C355

CM0402

RTD_B-

RTD_B+

C356

0.1uF_16V

CM0402

LVA0M LVA0P LVA1M

LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P

VCCK_1V2

C361

0.1uF_16V

CM0402

DET_SOURCE

DET_AUDIO

71

77

75

76

AGRN6/GPIO/ABLU4/TXOC-_8b/TXO3-_10b/BG2N

AGRN7/GPIO/ABLU5/TXOC+_8b/TXO3+_10b/BG2P

RTD_G-

RTD_G+

68

73

70

69

66

72

74

VCCK

ABLU0/ GPIO/ABLU6/TXO3-_8b/TXO4-_10b/BG3N

ABLU1/ GPIO/ABLU7/TXO3+_8b/TXO4+_10b/BG3P

31

SOG

RTD_R-

RTD_R+

65

67

TCON[6][12]/GPIO/PWM3/BCLKN

WS/TCON[7][1]/GPIO/PWM1/BB3P

ABLU7/SCK/TCON[4][2]/GPIO/BB3N

ABLU6/MCK/TCON[5][9]/GPIO/BB2P

SD0/SPDIF0/TCON[0][7]/GPIO/IrDA ABLU5/SD0/SPDIF0/TCON[13][3]/GPIO/BB2N

TCON[1][8]/PWM2/GPIO

ABLU4/SPDIF1/SD1/TCON[ 7][3]/GPIO/IICSCL/BB1P

ABLU3/SPDIF2/SD2/TCON[ 9][11]/GPIO/IICSDA/BB1N

TCON[3][5]/DDCSDA1/GPIO

TCON[7][10]/DDCSCL1/GPIO

ABLU2/SPDIF3/SD3/TCON[10][8]/GPIO/PWM1/PWM5/BCLKP

TCON[9][11]/B-ADC2/IICSDA/GPIO

TCON[1][4]/B-ADC1/IICSCL/GPIO

TCON[0][5]/BADC0/PWM1/PWM5/GPIO

AUDIO_HOUTR/V8 _0/PWM0/GPIO

AUDIO_HOUTL/V8_1/SD0/GPIO

AUDIO_SOUTR/V8_2/MCK/GPIO

AUDIO_SOUTL/V8_3/SCK/GPIO

SPDIF3/AUDIO_REF/V8_4/WS/GPIO

GPI/B1+ / V8_632ADC_GND

GPI/R1+/V8_1

GPI/R1-/V8_2

GPI/SOG1 / V8_3

GPI/G1+ / V8_4

GPI/G1- / V8_5

37

36

35

34

33

ADC_1V2

C384

C384 10uF_10V

10uF_10V

CM0805

A-ADC4/GPIO A-ADC3/GPIO A-ADC2/GPIO A-ADC1/GPIO

A-ADC0/VCLK/GPIO

LS_ADC_VDD

LINE_INR/V8_5/IICSDA/GPIO LINE_INL/V8_6/IICSCL/GPIO

GPI/V8_0/AHS1

38

DDC_WP

PVCC PGND VCCK

V8_7/GPIO

VCLK/AVS1

OSDKEY_EN

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39

ON

R329 10K_5%

1A1D1H use R493

R493

10K_5%

R0402

R495

NC/10K_5%

R0402

1A1H use R495

WP_PRO

C360 0.1uF_16V

C359 0.1uF_16V

R434 22_1% R0402R434 22_1% R0402 R429 22_1% R0402R429 22_1% R0402

EESCL EESDA

INR INL

EAR EAL

R0402

C367

C367 1uF_10V

1uF_10V

CM0402

PVCC_3V3 PVCC_3V3

R494

10K_5%

R0402

DET_AUDIODET_SOURCE

R496

NC/10K_5%

R0402

CM0402

ON

KEY2_SCL KEY1_SDA

CM0402

C358

C358 10uF_16V

10uF_16V

EC20-5

PVCC_3V3

VCCK_1V2

DDC_SDA_VGA DDC_SCL_VGA

on_Panel

AUDIO use R494

NON-AUDIO use R496

C365

0.1uF_16V

CM0402

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM

LVBCKP LVB3M LVB3P

LVA0MLVA1P LVA0P LVA1M LVA1P

LVA2M LVA2P

LVACKM

LVACKP LVA3M LVA3P

PVCC_3V3

4K7_5%

R0402

R409

P308

CN20-7

R361

GND INR INL GND EAR EAL

R409

R373

PVCC_3V3

7 6 5 4 3 2 1

A2001WV2_07_JWT

PVCC_3V3

R392

4K7_5%

R0402

DET_HDMI DVI_DETn VGA_DETn

4K7_5%

R0402

R390

4K7_5%

R0402

Audi o output

PC-Audi o i nput

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP LVB3M LVB3P

LVA0M LVA0P LVA1M LVA1P

LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P

A

B

C

D

E

F

G

C351 12pF_50V

CM0402

C352 12pF_50V

CM0402

12

X301

27.000MHz

XTAL-2PB

R435

R435 NC/1M_5%

NC/1M_5%

R0402

R507 0_5%

XI

R0402

XO

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9141-1

G

8.3.1.7 ACER_LCD_A211H/A221HQ ＿SCHEMATICS＿INTERFACE_BD_PANEL INTERFACE & KEY

(1A1D1H) :

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP LVB3M LVB3P

LVA0M LVA0P LVA1M LVA1P

LVA2M LVA2P

LVACKM LVACKP LVA3M LVA3P

P3P3V

KEY2_SCL KEY1_SDA

R503 NC/100_1%

R503 NC/100_1% R504 NC/100_1%

R504 NC/100_1%

R0402

R0402 R0402

R0402

A

B

C

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP

LVB3M LVB3P

LVA0M LVA0P LVA1M LVA1P

LVA2M LVA2P

LVACKM LVACKP

LVA3M LVA3P

P3P3V

R0402

R369

NC/4K7_5%

R0402

R371

NC/4K7_5%

KEY2 KEY1

POWER1 ORANGE_LED1 BLUE_LED2

FOR V273 KEY 6PIN

P310

1

POWER

2

ORANGE

3

BLUE

4

KEY2

5

KEY1

6

GND

NC/A-POINT 6PIN

DF100-6P

VLCD

C375

100uF_16V

EC25-63

+

VLCD

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P

LVA1M LVA1P

LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P

R412

R412 100_5%

100_5%

R0402

P307

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2 1

AFN300-N2G11_P-TWO

FFC-FPC-30P-100

A

B

C

ACER A211H/A221HQ

Go to contents page

70

D

E

F

G

POWER

P3P3V

R0402

R508 100_1%

R0402

FOR H233 POWER KEY 4PIN and X233 KEY 6PIN

R366 4K7_5%

LED_1

LED_2

R365 10K_5%

R367 4K7_5%

R364 10K_5%

10K_5%

R0402

R481

D356

D356 MMSZ5232BS

MMSZ5232BS

SOD323

R0402

ORANGE_LED1 BLUE_LED2

KEY2 KEY1

R370 330_5%

Q305

Q305 MMBT3906

MMBT3906

SM-PNP

R360 330_5%

Q308

Q308 MMBT3906

MMBT3906

SM-PNP

POWER1

R0402

P309

1

POWER

2

ORANGE

3

BLUE

4

GND

5

KEY2

6

KEY1

A2001WV2_06_JWT

CN20-6

ORANGE_LED1

C368

0.1uF_16V

CM0402

BLUE_LED2

C369

0.1uF_16V

CM0402

OSDKEY_EN

LED_1 LED_2 KEY2_SCL KEY1_SDA

/ATTN

/ATTN KEY2_SCL KEY1_SDA

LED_1 LED_2 KEY2_SCL KEY1_SDA

R500 1K_5% R0402R500 1K_5% R0402 R502 0_5% R0402R502 0_5% R0402 R368 100_1%

R368 100_1% R362 100_1%

R362 100_1%

R0402

R0402 R0402

R0402

C392

0.1uF_16V

CM0402

D352

D352 MMSZ5232BS

MMSZ5232BS

SOD323

P3P3V

D353

D353 MMSZ5232BS

MMSZ5232BS

SOD323

C394

C394 47pF_25V

47pF_25V

CM0402

P306

C393

C393 47pF_25V

47pF_25V

CM0402

1 2 3 4 5 6

A-POINT 6PIN

DF100-6P

KEY Vin GND ATTN SCL SDA GND

FOR H233 OSD KEY 6PIN

D

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9141-1

LCD Panel

CN301

Power & Inverter Board

Audio Input

DVI Video Input

CN304

Function Key BD

D-SUBDVI-DCN303

EEPROM M24C02

CN302

DDC_SCL

DDC_SDA

DDC_SCL DDC_SDA

EEPROM M24LC16

XTAL

14.318MHz

Regulator 5V-3.3V 5V-1.8V

Scaler

RTD2281

Analog Video Input

AC 110/220V Input

Audio Optional

PM25LV020

CN306

LVDS

1311

1310

+5V Vcc

1309Dim & Enable

TMDS

8.3.2 ACER_LCD_A211H/A221HQ_SCHEMATICS_INTERFACE BOARD_1A1D:

8.3.2.1 ACER_LCD_A211H/A221HQ(1A1D)_SCHEMATICS_BLOCK DIAGRAM:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

71

A

B

C

D

A

B

C

D

E

F

G

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

8.3.2.2 ACER_LCD_A211H/A221HQ(1A1D)_SCHEMATICS_INTERFACE BOARD_POWER:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

CN301

A

B

C

BKLT_ADJ BKLT_EN +5V +5V +5V GND GND MUTE VOLUME AUDIO_EN +5V_RTN STANDBY

GND

BACKLIGHT_ADJ

BACKLIGHT_EN

CN301

13 12 11 10 9 8 7 6 5 4 3 2

1

JWT-CON13-GP

BACKLIGHT_ADJ

BACKLIGHT_EN

1 2

R301 100R2J-2-GPR301 100R2J-2-GP

12

C305

(NC)SCD1U16V2ZY-2GP

1 2

R302 (NC)100R2J- 2-GPR302 (NC)100R2J- 2-GP

12

C309

(NC)SCD1U16V2ZY-2GP

P5V

MUTE_CTRL VOLUME_CTRL AUDIO_EN_CTRL P5V

12

R361

(NC)100KR2J-1- GP

12

R303

(NC)100KR2J-1- GP

P5V

P5V 3,4,5,6

STANDBY_CTRL 5

BKLT_ADJ 5

BKLT_EN 5

C301

E100U16VM-58-GP

P5V

12

LD1117AG-12-AA3-A-R-GP

C302

SCD1U16V2ZY-2GP

I302

3

VIN

2

VOUT

1

GND

I301

UZ1084-G-3D3V-TN3-R-G P

3

VIN

2

VOUT

1

ADJ/GND

P3P3V

12

C304

C304 E100U16VM-57-GP-U

E100U16VM-57-GP-U

1 2

(NC)PBY201209T-300Y-N-GP

K A

S1A-F-GP

12

C307

P1P2V

SCD1U16V2KX-3GP

12

C310

C308

SCD1U16V2ZY-2GP

E100U16VM-57-GP-U

L313

D313

P1P2V 5

P3P3V 5,6

A

B

C

ACER A211H/A221HQ

Go to contents page

72

D

E

F

G

4K7R2J-2-GP

MUTE_CTRL

AUDIO_EN_CTRL

VOLUME_CTRL

R304

12

3

Q302

1

MMBT3904-7-F-GP

2

P5V

12

R308

4K7R2J-2-GP

1 2

R310 100R2J-2-GPR310 100R2J-2-GP

1 2

R312 10KR2J-3-GPR312 10KR2J-3-GP

12

C315

C315 SCD1U16V2ZY-2GP

SCD1U16V2ZY-2GP

R360

10KR2J-3-GP

1 2

R306 100R2J-2-GPR306 100R2J-2-GP

P5V

12

R311

4K7R2J-2-GP

MUTE 5

AUDIO_EN 5

VOLUME 5

P5V

PBY201209T-300Y-N-GP

PANELVCC_EN5

GEN246R158-8-F-A

M301

2

3

4

5

6

7

L301

1 2

E100U16VM-58-GP

1

8

C311

1 2

12

R390

100KR2J-1-GP

12

10KR2J-3-GP

R309

4K7R2J-2-GP

R305

1

12

100KR2J-1-GP

R307

1 2

3

MMBT3904-7-F-GP

2

Q301

AO3419L-GP

S

12

C312

SCD1U16V2ZY-2GP

I303

D

VLCD

L302

D

G

1 2

PBY201209T-300Y-N-GP

12

C313

SCD1U16V2ZY-2GP

12

C314

SCD1U16V2ZY-2GP

VLCD 6

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9137-1M

8.3.2.3 ACER_LCD_A211H/A221HQ(1A1D)_SCHEMATICS_INTERFACE BOARD_VGA&DDC:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

CN302

A

B

C

11

VGA_SDA

VGA_HSYNC

VGA_VSYNC

VGA_SCL

VGA_RED VGA_BLUEVGA_GREEN

3

1

2

1 2

C326

SCD1U16V2ZY-2GP

12

13

14

15

VIDEO-15-130-GP

D301

D301 MMBD7000-1-GP

MMBD7000-1-GP

1

17 6 1

7 2 8 3 9 4 10 5 16

3

2

1 2

C327

SCD1U16V2ZY-2GP

VGA_RED-

VGA_RED

VGA_GRN-

VGA_GREEN

VGA_BLU-

VGA_BLUE

VGA_5V

VGA_CONn

D302

D302 MMBD7000-1-GP

MMBD7000-1-GP

D303

3

MMBD7000-1-GP

1

2

1 2

C329

SCD1U16V2ZY-2GP

P5VP5VP5V

VGA_RED

VGA_RED-

VGA_GREEN

VGA_GRN-

VGA_BLUE

VGA_BLU-

VGA_CONn

R313 0R3J-L-G PR313 0R3J-L-GP

1 2

R318 0R3J-L-G PR318 0R3J-L-GP

1 2

R322 0R3J-L-G PR322 0R3J-L-GP

1 2

12

SBK160808T-750Y-N-GP

R315

R315 75R2F-2-GP

75R2F-2-GP

12

SBK160808T-750Y-N-GP

R320

R320 75R2F-2-GP

75R2F-2-GP

12

SBK160808T-750Y-N-GP

R324

R324 75R2F-2-GP

75R2F-2-GP

D304

D304 MMSZ5234BS-7-F-GP-U

MMSZ5234BS-7-F-GP-U

A K

L303

1 2

L304

1 2

L305

1 2

R326 1KR2J-1-GPR326 1KR2J-1 -GP

12

C317

(NC)SC5P50V2CN- 2GP

12

C321

(NC)SC5P50V2CN- 2GP

12

C324

(NC)SC5P50V2CN- 2GP

C328

SCD1U16V2ZY-2GP

C328

R314

1 2

100R2F-L1-GP-U

R316

1 2

100R2F-L1-GP-U

R317

(NC)470R2J- 2-GP

1 2

R319

1 2

100R2F-L1-GP-U

R321

1 2

100R2F-L1-GP-U

R323

1 2

100R2F-L1-GP-U

R325

1 2

100R2F-L1-GP-U

12

C316

1 2

C316

SCD047U16V2KX-1-GP

C318

SCD047U16V2KX-1-GP

C319

(NC)SCD047U16V2KX-1-GP

SCD047U16V2KX-1-GP

C320

C322

C323

C325

1 2

R398

RIN 5

GNDR 5

SOG 5

(NC)1MR2J-1-GP

GIN 5

GNDG 5

BIN 5

GNDB 5

VGA_CABLE_DET 5

A

B

C

ACER A211H/A221HQ

Go to contents page

73

D

E

F

G

P5V2,4,5,6

VGA_5V

C333

SCD1U16V2ZY-2GP

VGA_SCL VGA_SDA

MMSZ5234BS-7-F-GP-U

P5V

D

L306

VGA_HSYNC

VGA_VSYNC

D305

MMSZ5234BS-7-F-GP-U

A K

D307

1

3

2

BAT 54C-GP-U

12

BAT 54C-GP-U

D309

A K

D310

D310 MMSZ5234BS-7-F-GP-U

MMSZ5234BS-7-F-GP-U

A K

12

C332

SCD1U16V2ZY-2GP

D308

SCD1U16V2ZY-2GP

MMSZ5234BS-7-F-GP-U

R334 47R2J-2-GPR334 47R2J-2-GP

1 2 1 2

R335 47R2J-2-GPR335 47R2J-2-GP

SC47P50V2JN-3GP

R332

4K7R2J-2-GP

C334

12

DDC5V_VGA

12

R333

4K7R2J-2-GP

12

C335

SC47P50V2JN-3GP

12

R331

R331 10KR2J-3-GP

10KR2J-3-GP

A K

L306

1 2

SBK160808T-471Y-N-GP

D306

D306 MMSZ5234BS-7-F-GP-U

MMSZ5234BS-7-F-GP-U

I304

8

VCC

7

WC#

6

SCL

5

SDA

M24C02-WMN6TP-GP-U

E0 E1 E2

VSS

DDC_SCL_VGA 5 DDC_SDA_VGA 5 DDC_WPn 4,5

12

1 2 3 4

R329

R329 2K2R2F-GP

2K2R2F-GP

12

R330

R330 2K2R2F-GP

2K2R2F-GP

R327

1 2

100R2J-2-GP

R328

1 2

100R2J-2-GP

C330

SC22P50V2JN-4GP

HSYNC 5

VSYNC 5

12

C331

SC12P50V2JN-3GP

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9137-1M

8.3.2.4 ACER_LCD_A211H/A221HQ(1A1D)_SCHEMATICS_INTERFACE BOARD_DVI&DDC:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

74

A

B

C

D

E

NP2

NP1

A

CN303

HP

VS

SDA

SCL

5V

CN303

VIDEO-24-GP

24 23 22 21 20 19 18 17

16 15 14 13 12 11 10 9

8 7 6 5 4 3 2 1

DRXCDRXC+

DRX0+ DRX0-

DVI_PLUG DVI_DET DVI_5V

DRX1+ DRX1-

DVI_SDA DVI_SCL

DRX2+ DRX2-

R351 10R2J- 2-GPR351 10R2J- 2-GP

R347 10R2J- 2-GPR347 10R2J- 2-GP

R345 10R2J- 2-GPR345 10R2J- 2-GP

R344 10R2J- 2-GPR344 10R2J- 2-GP

R346 10R2J- 2-GPR346 10R2J- 2-GP

R341 10R2J- 2-GPR341 10R2J- 2-GP

R350 10R2J- 2-GPR350 10R2J- 2-GP

R349 10R2J- 2-GPR349 10R2J- 2-GP

12 12

DRXCN 5

DRXCP 5

DRX0P 5

DRX0N 5

DRX1P 5

DRX1N 5

DRX2P 5

DRX2N 5

P5V2,3,5,6

DVI_5V

C336

D314

C336

SCD1U16V2ZY-2GP

DVI_SCL DVI_SDA

MMSZ5234BS-7-F-GP-U

P5V

D311

1

2

12

BAT54C-GP-U

MMSZ5234BS-7-F-GP-U

A K

3

D312

47R2J-2-GP

R339

R340

47R2J-2-GP

D315

MMSZ5234BS-7-F-GP-U

A K

1 2 1 2

12

C337

SCD1U16V2ZY-2GP

4K7R2J-2-GP

SC47P50V2JN-3GP

R337

C338

DDC5V_DVI

12

R336

R336 10KR2J-3-GP

R338

4K7R2J-2-GP

1 2

DDC_SCL_DVI DDC_SDA_DVI

12

C339

SC47P50V2JN-3GP

DVI_5V

10KR2J-3-GP

I305

8

VCC

7

WC#

6

SCL

5

M24C02-WMN6TP-GP-U

VSS

SDA

DDC_WPn 3,5 DDC_SCL_DVI 5 DDC_SDA_DVI 5

1

E0

2

E1

3

E2

4

B

C

26

GND

28

GND NP2

RXC-

RXC+

GND

RX5+

RX5GND

RX0+

RX0-

GND

RX3+

RX3GND

RX1+

RX1-

RX4+

RX4GND

RX2+

NP1

27 25

GND GND

RX2-

D

R342

R342 1KR2J-1-GP

1KR2J-1-GP

1 2

R343 100R2J-2-GPR34 3 100R2J -2-GP

DVI_HOT_PLUG 5

E

DRX2-

3

D322

D322 MMBD7000-1-GP

MMBD7000-1-GP

DRX2+

3

D323

D323 MMBD7000-1-GP

MMBD7000-1-GP

DRX1-

3

D324

D324 MMBD7000-1-GP

MMBD7000-1-GP

DRX1+

3

D325

D325 MMBD7000-1-GP

MMBD7000-1-GP

DRX0-

3

D326

D326 MMBD7000-1-GP

MMBD7000-1-GP

DRX0+

3

D327

D327 MMBD7000-1-GP

MMBD7000-1-GP

DRXC+

3

DRXC-

D328

D328 MMBD7000-1-GP

MMBD7000-1-GP

3

D329

D329 MMBD7000-1-GP

MMBD7000-1-GP

DVI_PLUG

C341

SCD1U16V2ZY-2GP

12

F

G

1

P5V

1

2

C340

1 2

SCD1U16V2ZY-2GP

1

2

C342

1 2

SCD1U16V2ZY-2GP

1

2

C344

1 2

SCD1U16V2ZY-2GP

2

C376

1 2

SCD1U16V2ZY-2GP

1

2

C377

1 2

SCD1U16V2ZY-2GP

1

2

C378

1 2

SCD1U16V2ZY-2GP

1

2

C379

1 2

SCD1U16V2ZY-2GP

1

C380

1 2

SCD1U16V2ZY-2GP

2

DVI_DET

SCD1U16V2ZY-2GP

C343

1 2

R348 100R2J-2-GPR34 8 100R2J -2-GP

12

DVI_CABLE_DET 5

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9137-1M

F

G

8.3.2.5 ACER_LCD_A211H/A221HQ(1A1D)_SCHEMATICS_INTERFACE BOARD_SCALER:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

75

A

B

C

D

E

KEY_POWER

DVI_CABLE_DET

VGA_CABLE_DET

ATTN

WP_PRO

WP

EESCL

EESDA

KEY_ADC1

KEY_ADC2

P5V

P5V2,3,4,6

AMBER

P5V

GREEN

EESCL

R364 100R2J-2-GPR3 64 100R2J-2-GP R365 100R2J-2-GPR3 65 100R2J-2-GP

EESDA

CE

R366 22R2J -2-GPR366 22R2J-2- GP R367 22R2J -2-GPR367 22R2J-2- GP

SDOUT WP

R368 22R2J -2-GPR368 22R2J-2- GP

(NC)100KR2J- 1-GP

1 2

R352 100KR2J-1-GPR352 100KR2J-1-GP

1 2

R353 100KR2J-1-GPR353 100KR2J-1-GP

1 2

R354 100KR2J-1-GPR354 100KR2J-1-GP

1 2

R355 (NC)100KR2J-1-GPR3 55 (NC)1 00KR2J-1-GP

1 2

R356 10KR2J-3-GPR356 10KR2J-3-GP

1 2

R357 10KR2J-3-GPR357 10KR2J-3-GP

1 2

R358 10KR2J-3-GPR358 10KR2J-3-GP

1 2

R359 10KR2J-3-GPR359 10KR2J-3-GP

1 2

R362 (NC)4K7R2J-2- GPR362 (N C)4K7R2J-2-GP

1 2

R401 (NC)4K7R2J-2- GPR401 (N C)4K7R2J-2-GP

Q313

1 2

R372

1 2

Q313

Q314

SCD1U16V2ZY-2GP

MMBT3906-4-GP

R392 4K7R2J- 2-GPR392 4K7R2J- 2-GP

1 2

R391 10KR2J-3-GPR391 10KR2J-3-GP

MMBT3906-4-GP

R396 4K7R2J- 2-GPR396 4K7R2J- 2-GP

1 2

R393 10KR2J- 3-GPR393 10KR2J- 3-GP

1 2 1 2

1 2 1 2 1 2

P3P3V

R394 1KR2J-1-GPR394 1KR2J -1-GP

CBE

1 2

R395 1KR2J-1-GPR395 1KR2J -1-GP

CBE

1 2

WP_PRO

P3P3V

12

C358

I311

1

CE#

2

SO

3

WP# GND4SI

PM25LV020-100SCE-GP

P3P3V V33P

L307

P3P3V2,6 P1P2V2

I309

7

WC#

6

SCL

5

SDA

8

VSS

VCC

M24C16-W MN6-1GP

P3P3V

8

VCC

7

HOLD#

6

SCK

5

1 2

PBY160808T-301Y-N-GP

P3P3V V33TMDS

L309

1 2

PBY160808T-301Y-N-GP

SC10U6D3V5MX-3GP

P3P3V

L311

1 2

PBY160808T-301Y-N-GP

LED_AMBER 6

LED_GREEN 6

1

E0

2

E1

3

E2

4

R369 22R2J-2-GPR369 22R2J-2-GP

1 2

R370 22R2J-2-GPR370 22R2J-2-GP

1 2

12

C359

SCD1U16V2ZY-2GP

CLK SDIN

C350

12

C345

C345 E10U50VM-25-GP-U

E10U50VM-25-GP-U

12

V33SDRAM

12

C356

SCD1U16V2ZY-2GP

12

C346

SCD1U16V2ZY-2GP

12

C351

SCD1U16V2ZY-2GP

XTAL-14D31818MHZ-7-GP

12

C357

SCD1U16V2ZY-2GP

C360

SC22P50V2JN-4GP

1 2

SC22P50V2JN-4GP

C361

12

C347

SCD1U16V2ZY-2GP

12

C352

SCD1U16V2ZY-2GP

X301

1 2

P1P2V V12C

L310

1 2

PBY160808T-301Y-N-GP

SC10U6D3V5MX-3GP

V33SDRAM

DVI_HOT_PLUG4 STANDBY_CTRL2

BKLT_EN2

BKLT_ADJ2

V33P V12C

DDC_SDA_DVI4 DDC_SCL_DVI4

1 2

12

R373 560R2J-3-GPR373 560R2J -3-GP

R374

(NC)1MR2J- 1-GP

1 2

R375 0R2J-2-GPR375 0R2J-2-G P

L308

1 2

PBY160808T-301Y-N-GP

C382

R371 10KR2J-3-GPR371 10KR2J-3-G P

SC10U6D3V5MX-3GP

12

WP

CLK SDIN SDOUT CE

1 2

RESETB

C348

V12ADCP1P2V

12

C353

SCD1U16V2ZY-2GP

12

C349

SCD1U16V2ZY-2GP

12

C354

SCD1U16V2ZY-2GP

I310

I310 RTD2281

103

TCON8/GPI#103/GPO#103/IICSCL#103/PWM1#103/AR3N

104

TCON5#104/GPI#104/GPO#104/IRQB#104/IICSDA#104/AR2P

105

TCON9/GPI#105/GPO#105/AR2N

106

PVCC

107

PGND

108

TCON7/GPI#108/GPO#108/AR1P

109

TCON3/GPI#109/GPO#109/AR1N

110

TCON2_6_7/GPIO#110

111

TCON4_7/GPIO#111

112

TCON5_9#112/GPIO#112

113

TCON1_11/GPIO#113

114

TCON0_13/PWM4#114/GPIO#114

115

SPI_SCLK/SDIO

116

SI/MCU_SCLK

117

SO/SCSB

118

CEB/IRQB#118

119

GPIO#119/PWM5#119

120

VCCK

121

DDCSCL3/GPIO#121

122

DDCSDA3/GPIO#122

123

DDCSDA2/GPIO#123

124

DDCSCL2/GPIO#124

125

RESET#

126

GPIO#126/PWM1#126

127

XO

128

XI

12

C355

SCD1U16V2ZY-2GP

A

6

LV_B[0..9]6LV_A[0..9]

B

LV_B[0..9]

LV_A[0..9]

LV_B0

LV_B1

LV_B8

LV_B7

LV_B2

LV_B3

LV_B6

LV_B5

LV_B4

LV_B9

99

101

102

100

98

GPI#99/GPO#99/PWM3#99/TCON11_6/AG2N

GPI#101/GPO#101/PWM5#101/TCON0/AG1N

TCON10/GPI#102/GPO#102/PWM0#102/AR3P

GPI#100/GPO#100/PWM4#100/TCON12_3/AG1P

90

96

91

92

97

95

GPI#98/GPO#98/PWM2#98/AG2P

DVS/GPI#97/GPO#97/PWM1#97/AG3N

DCLK/GPI#96/GPO#96/PWM0#96/AG3P

87

89

88

93

94

DHS/TXE0-_8B/ACLKN

DENA/TXE0+_8B/ACLKP

ARED0/ARED2#93/TXE1-_8B/AB1N

ARED1/ARED3#92/TXE1+_8B/A B1P

ARED2#91/ARED4#91/TXE2-_8B/AB 2N

ARED4#89/ARED6#89/TXEC-_8B/AB 3N

ARED3#90/ARED5#90/TXE2+_8B /AB2P

ARED5#88/ARED7#88/TXEC+_8B/A B3P

LV_A5

LV_A3

LV_A4

LV_A8

LV_A9

LV_A7

LV_A6

V33P V12C

77

81

79

80

78

83

82

86

85

84

PVCC

PGND

ARED6#87/AGRN2#87/TXE3-_8B/BR1N

ARED7#86/AGRN3#86/TXE3+_8B/BR1P

AGRN0/GPI#83/GPO#83/AGRN4#83/TXO0-_8B/BR2N

AGRN1/GPI#82/GPO#82/AGRN5#82/TXO0+_8B/BR2P

AGRN4#79/GPI#79/GPO#79/ABLU2#79/TXO2-_8B/BG1N

AGRN2#81/GPI#81/GPO#81/AGRN6#81/TXO1-_8B/BR3N

AGRN5#78/GPI#78/GPO#78/ABLU3#78/TXO2+_8B/BG1P

AGRN3#80/GPI#80/GPO#80/AGRN7#80/TXO1+_8B/BR3P

LV_A0

LV_A1

LV_A2

71

70

76

75

74

69

72

68

67

66

73

VCCK

ABLU0/GPI#75/GPO#75/ABLU6#75/TXO3-_8B/BG3N

ABLU1/GPI#74/GPO#74/ABLU7#74/TXO3+_8B/B G3P

AGRN6#77/GPI#77/GPO#77/ABLU4#77/TXOC-_8B/BG2N

AGRN7#76/GPI#76/GPO#76/ABLU5#76/TXOC+_8B/BG2P

65

1 2

R363 0R2J-2-GPR363 0R2J-2-G P

PVCC PGND VCCK

GPIO#54

LS_ADC_VDD

GPIO#47 GPIO#46 GPIO#45 GPIO#44

GPI#39

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39

V33SDRAM

EESCL EESDA

KEY_ADC1 KEY_ADC2 KEY_POWER

ATTN

AMBER GREEN

WP_PRO

(NC)100KR2J- 1-GP

TCON0_7/GPIO#64

TCON1_8/PWM2#63/GPIO#63

TCON7_1/GPI#65/GPO#65/PWM1#65/BB3P

ABLU7#66/TCON4_2/GPI#66/GPO#66/BB3N

ABLU5#68/TCON13_3/GPI#68/GPO#68/BB2N

TCON6_12/GPI#72/GPO#72/PWM3#72/BCLKN

ABLU6#67/TCON5_9#67/GPI#67/GPO#67/BB2P

ABLU4#69/TCON7_3/GPI#69/GPO#69/IICSCL#69/BB1P

ABLU3#70/TCON9_11#70/GPI#70/GPO#70/IICSDA#70/BB1N

ABLU2#71/TCON10_8/GPI#71/GPO#71/PWM1#71/PW M5#71/BCLKP

TCON3_5/DDCSDA1/GPIO#59

TCON7_10/DDCSCL1/GPIO#58

TCON9_11#57/IICSDA#57/GPIO#57

TCON1_4/IICSCL#56/GPIO#56

TCON0_5/PWM1#55/PWM5#55/GPIO#55

A_ADC3/GPIO#53 A_ADC2/GPIO#52 A_ADC1/GPIO#51 A_ADC0/GPIO#50

PWM0#48/GPIO#48

IICSDA#43/GPIO#43 IICSCL#42/GPIO#42

GPIO#41/TCON5#41

RESERVED#40

AHS0

PANELVCC_EN 2

V12C

DDC_SDA_VGA 3 DDC_SCL_VGA 3

VOLUME 2 DDC_WPn 3,4 KEY_ADC1 6 KEY_ADC2 6 KEY_POWER 6 AUDIO_EN 2

V33P

POWER_KEY_EN 6 MUTE 2 USB_EN 6 USB_DET 6 ATTN 6

R385 (NC)1 00KR2J-1-GPR385 (NC)1 00KR2J-1-GP

R387 (NC)1 00KR2J-1-GPR387 (NC)1 00KR2J-1-GP

12

R386

R389

(NC)100KR2J- 1-GP

12

P3P3V

C

D

E

F

G

CE

V33P

1 2

R378

R378 10KR2J-3-GP

10KR2J-3-GP

R379

R379 (NC)10KR2J -3-GP

(NC)10KR2J -3-GP

V33P

12

R376

R376 4K7R2J-2-GP

4K7R2J-2-GP

RESETB

12

C362

C362 (NC)E10U50VM-25- GP-U

(NC)E10U50VM-25- GP-U

V33TMDS

R377 6K2R2F- GPR377 6K2R2F- GP

1 2

R397 (NC)6 K2R2F-GPR397 (NC)6 K2R2F-GP

1 2

TMDS_VDD1TMDS_REXT2RESERVED#33RESERVED#44RESERVED#55RESERVED#66RESERVED#77RESERVED#88RESERVED#99RESERVED#1010TMDS_GND11RX2P_112RX2N_113RX1P_114RX1N_115RX0P_116RX0N_117RXCP_118RXCN_119TMDS_VDD20AVS021AHS022ADC_VDD23B0-24B0+25G0-26G0+27SOG028R0-29R0+30GPI#3131GPI#32

AHS0

4

BIN

GNDB

DRX2P

DRXCP

VSYNC

DRXCN

HSYNC

V12ADCV33TMDS

V33TMDS

DRX0P4DRX1P

DRX1N

DRX2N4DRX0N

SOG0

3

4

3

4

RIN

GIN

SOG

GNDR3GNDG

ADC_GND38GPI#3737GPI#3636RESERVED#3535GPI#3434GPI#33

32

33

VGA_CABLE_DET

DVI_CABLE_DET

3

4

DVI_CABLE_DET

VGA_CABLE_DET

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9137-1M

F

G

8.3.2.6 ACER_LCD_A211H/A221HQ(1A1D)_SCHEMATICS_INTERFACE BOARD_PANEL INTERFACE &

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

76

A

B

C

D

LV_A[0..9]5

LV_B[0..9]5

POWER_KEY_EN5

ATTN5

LED_AMBER5 LED_GREEN5

KEY_ADC25 KEY_ADC15

KEY_POWER5

USB_DET5

USB_EN5

LV_A[0..9]

LV_B[0..9]

LVA3PLV_A0 LVA3MLV_A1 LVACKPLV_A2 LVACKMLV_A3 LVA2PLV_A4 LVA2MLV_A5 LVA1PLV_A6 LVA1MLV_A7 LVA0PLV_A8 LVA0MLV_A9

LVB3PLV_B0 LVB3MLV_B1 LVBCKPLV_B2 LVBCKMLV_B3 LVB2PLV_B4 LVB2MLV_B5 LVB1PLV_B6 LVB1MLV_B7 LVB0PLV_B8 LVB0MLV_B9

POWER_KEY_EN ATTN LED_AMBER LED_GREEN

KEY_ADC2 KEY_ADC1

KEY_POWER USB_DET USB_EN

KEY_ADC1

KEY_POWER

LED_AMBER

ATTN

POWER_KEY_EN

POWER_KEY

P3P3V

LED_GREEN

P3P3V2,5

56KR2F-GP

1 2

R382 100R2J-2-GPR382 100R2J-2-GP

1 2

R383 100R2J-2-GPR383 100R2J-2-GP

1 2

R384 (NC)100R2J-2-GPR384 (NC)100R2J-2-GP

1 2

R399 (NC)0R2J -2-GPR399 (NC)0R2J -2-GP

1 2

R388 (NC)100R 2J-2-GPR388 (NC)100R 2J-2-GP

1 2

R403 (NC)100R 2J-2-GPR403 (NC)100R 2J-2-GP

1 2

R402 (NC)0R2J -2-GPR402 (NC)0R2J -2-GP

1 2

L312 (NC)PBY160808T-301Y-N-GPL312 (NC)PBY160808T-301Y-N-GP

1 2

R400 (NC)0R2J -2-GPR400 (NC)0R2J -2-GP

P3P3V P3P3V

12

R380

12

R381

56KR2F-GP

CN304

KEY2KEY_ADC2

LED_GREEN

LED_AMBER

POWER_KEY

12

C363

SCD1U16V3ZY-GP

KEY2 KEY1

C364

SCD1U16V3ZY-GP

12

C368

12

C369

12

C366

SCD1U16V3ZY-GP

12

C370

KEY1

12

C367

SCD1U16V3ZY-GP

C367

SCD1U16V3ZY-GP

12

C372

C365

C371

CN304

1

2 3 4 5 6 7

JWT-CON7-4-GP

6 5 4 3 2

1

(NC)PTWO-C ON6-11-GP-U

CN305

KEY2

KEY1 GREEN AMBER GND POWER GND

8

7

Tact Touch

GND KEY2 KEY1 AMBER POWER

GREEN

GND SDA SCL ATTN POWER_KEY_EN

VCC

A

B

C

D

E

F

G

CN308

CN306

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P

LVA1M LVA1P

LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P

VLCD

VLCD2

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2

1

PTWO-CON30-3- GP-U

32

31

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P

LVA1M LVA1P

LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P

VLCD

CN308

32 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2

1

31

JCE-CON30-1-GP

P5V2,3,4,5

P3P3V

P5V

USB_EN USB_DET

(NC)SC47P50V3JN-GP

(NC)SCD1U16V3ZY-GP

E

CN307

1

2 3 4 5 6 7

JWT-CON7-4-GP

12

C373

(NC)SCD1U16V3ZY-GP

12

C375

(NC)SCD1U16V3ZY-GP

C375

C381

(NC)SCD1U16V3ZY-GP

C374

JWT-CON7-4-GP

+5V

+5V GND GND USB_EN USB_DET +3.3V

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9137-1M

LCD Panel

CN301

Power & Inverter Board

Audio Input

CN305

Function Key BD

D-SUB

EEPROM M24C02

CN302

DDC_SCL

DDC_SDA

EEPROM M24LC16

XTAL

14.318MHz

Regulator 5V-3.3V 5V-1.8V

Scaler

RTD2280L

Analog Video Input

AC 110/220V Input

Audio Optional

PM25LV020

CN304

LVDS

1304

1306

+5V Vcc

1305Dim & Enable

8.3.3 ACER_LCD_A211H/A221HQ_SCHEMATICS_INTERFACE BOARD_1A:

8.3.3.1 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_BLOCK DIAGRAM:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

77

A

B

C

D

A

B

C

D

E

F

G

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

8.3.3.2 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_POWER:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

JWT-CON13-GP

A

B

C

D

E

F

G

BKLT_ADJ BKLT_EN +5V +5V +5V GND GND MUTE VOLUME AUDIO_EN +5V_RTN STANDBY

GND

BACKLIGHT_ADJ

BACKLIGHT_EN

MUTE_CTRL

MMBT3904-7-F-GP

AUDIO_EN_CTRL

VOLUME_CTRL

JWT-CON13-GP

CN301

R304

4K7R2J-2-GP

Q304

13 12 11 10 9 8 7 6 5 4 3 2

1

BACKLIGHT_ADJ

BACKLIGHT_EN

1 2

R301 100R2J-2-GPR301 100R2J-2-GP

12

(NC)SCD1U16V2ZY-2GP

C305

1 2

R302 (NC)100R2J- 2-GPR302 (NC)100R 2J-2-GP

12

(NC)SCD1U16V2ZY-2GP

C306

P5V

12

R360

10KR2J-3-GP

3

2

P5V

12

R308

4K7R2J-2-GP

12

C312

C312 SC1U16V3KX-5GP

SC1U16V3KX-5GP

1 2

1

1 2

R310 100R2J-2-GPR310 100R2J-2-GP

1 2

R312 10KR2J-3-GPR312 10KR2J-3-GP

P5V

MUTE_CTRL VOLUME_CTRL AUDIO_EN_CTRL

1 2

R349 0R2J-2-GPR349 0R2J-2-GP

1 2

R306 100R2J-2-GPR306 100R2J-2-GP

P5V

12

R333

(NC)100KR2J-1- GP

12

R303

(NC)100KR2J-1- GP

P5V

12

R311

4K7R2J-2-GP

P5V 3,4

STANDBY_ATTN 4,5

BKLT_ADJ 4

BKLT_EN 4

MUTE 4

AUDIO_EN 4

VOLUME 4

P5V

PBY201209T-300Y-N-GP

PANELVCC_EN4

GEN246R158-8-F-A

M301

2

3

4

5

6

7

L302

1 2

E100U16VM-58-GP

1

8

C308

12

R338

100KR2J-1-GP

12

10KR2J-3-GP

R309

1 2

4K7R2J-2-GP

C301

E100U16VM-58-GP

VCTRL4

12

R305

1

100KR2J-1-GP

1 2

3

2

P5V

12

(NC)PMBT2907A-1GP

12

R307

Q303

MMBT3904-7-F-GP

12

C302

SCD1U16V2ZY-2GP

Q301

E

B

C

I302

AO3419L-GP

S

C309

SCD1U16V2ZY-2GP

G

UZ1084-G-3D3V-TN3-R-G P

P3P3V

E

KTC8550S-GP

B

Q302

C

D

I301

3

VIN

2

VOUT

1

ADJ/GND

12

C303

C303 E100U16VM-57-GP-U

E100U16VM-57-GP-U

S1A-F-GP

1 2

PBY201209T-300Y-N-GP

12

C310

SCD1U16V2ZY-2GP

P3P3V 4,5

P1P2V

D301

KA

12

L303

C307

C307 E100U16VM-57-GP-U

E100U16VM-57-GP-U

VLCD

12

C311

SCD1U16V2ZY-2GP

P1P2V 4

VLCD 5

A

B

C

D

E

F

G

ACER A211H/A221HQ

Go to contents page

78

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9142-1M

8.3.3.3 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_VGA&DDC:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

CN302

A

B

C

11

VGA_SDA

VGA_HSYNC

VGA_VSYNC

VGA_SCL

VGA_RED VGA_BLUEVGA_GREEN

3

12

13

14

15

VIDEO-15-130-GP

D302

D302 MMBD7000-1-GP

MMBD7000-1-GP

17 6 1

7 2 8 3 9 4 10 5 16

D303

3

MMBD7000-1-GP

VGA_REDVGA_RED

VGA_GRN-

VGA_GREEN

VGA_BLU-

VGA_BLUE

VGA_5V

VGA_CONn

3

D304

D304 MMBD7000-1-GP

MMBD7000-1-GP

VGA_RED

VGA_RED-

VGA_GREEN

VGA_GRN-

VGA_BLUE

VGA_BLU-

R313 0R3J-L-G PR313 0R3 J-L-GP

1 2

R318 0R3J-L-G PR318 0R3 J-L-GP

1 2

R322 0R3J-L-G PR322 0R3 J-L-GP

1 2

12

SBK160808T-750Y-N-GP

R315

R315 75R2F-2-GP

75R2F-2-GP

12

SBK160808T-750Y-N-GP

R320

R320 75R2F-2-GP

75R2F-2-GP

12

SBK160808T-750Y-N-GP

R347

R347 75R2F-2-GP

75R2F-2-GP

L304

1 2

L305

1 2

L306

1 2

12

C317

(NC)SC5P50V2CN- 2GP

(NC)470R2J- 2-GP

12

C337

(NC)SC5P50V2CN- 2GP

12

C338

(NC)SC5P50V2CN- 2GP

R314

1 2

100R2F-4-GP

R316

1 2

100R2F-4-GP

R317

1 2

R319

1 2

100R2F-4-GP

R321

1 2

100R2F-4-GP

R344

1 2

100R2F-4-GP

R346

1 2

100R2F-4-GP

C316

1 2

C316

SCD047U16V2KX-1-GP

C318

SCD047U16V2KX-1-GP

C319

(NC)SCD047U16V2KX-1-GP

SCD047U16V2KX-1-GP

C340

C342

C339

C341

1 2

R404

RIN 4

GNDR 4

SOG 4

(NC)1MR2J-1-GP

GIN 4

GNDG 4

BIN 4

GNDB 4

A

B

C

ACER A211H/A221HQ

Go to contents page

79

D

E

F

G

1

1 2

C320

SCD1U16V2ZY-2GP

P5V2,4

VGA_5V

C327

SCD1U16V2ZY-2GP

VGA_SCL VGA_SDA

MMSZ5234BS-7-F-GP-U

2

P5V

1

2

1 2

C321

SCD1U16V2ZY-2GP

D308

1

3

2

BAT 54C-GP-U

12

BAT 54C-GP-U

D310

A K

D311

D311 MMSZ5234BS-7-F-GP-U

MMSZ5234BS-7-F-GP-U

A K

1

1 2

C322

SCD1U16V2ZY-2GP

D309

A K

MMSZ5234BS-7-F-GP-U

P5VP5VP5V

2

12

C326

SCD1U16V2ZY-2GP

R331 47R2J-2-GPR331 47R2J-2-GP

1 2 1 2

R332 47R2J-2-GPR332 47R2J-2-GP

4K7R2J-2-GP

SC47P50V2JN-3GP

R329

C328

DDC5V_VGA

12

R330

4K7R2J-2-GP

12

C329

SC47P50V2JN-3GP

VGA_CONn

VGA_HSYNC

VGA_VSYNC

D306

MMSZ5234BS-7-F-GP-U

12

R328

R328 10KR2J-3-GP

10KR2J-3-GP

A K

L307

1 2

SBK160808T-471Y-N-GP

D307

D307 MMSZ5234BS-7-F-GP-U

MMSZ5234BS-7-F-GP-U

A K

I303

8

VCC

7

WC#

6

SCL

5

SDA

M24C02-WMN6TP-GP-U

VSS

1

E0

2

E1

3

E2

4

DDC_SCL_VGA 4 DDC_SDA_VGA 4 DDC_WPn 4

1 2

R323 1KR2J-1-GPR323 1KR2J-1 -GP

D305

D305 MMSZ5234BS-7-F-GP-U

MMSZ5234BS-7-F-GP-U

12

R326

R326 2K2R2F-GP

2K2R2F-GP

SCD1U16V2ZY-2GP

12

R327

R327 2K2R2F-GP

2K2R2F-GP

12

C323

R324

1 2

100R2J-2-GP

R325

1 2

100R2J-2-GP

C325

SC22P50V2JN-4GP

C325

VGA_DETn 4

D

HSYNC 4

VSYNC 4

12

C324

SC22P50V2JN-4GP

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9142-1M

8.3.3.4 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_SCALER:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

80

A

B

C

D

P5V

AMBER

P3P3V P3P3V AVDD_33VDDP

P3P3V2,5

P1P2V2

P5V

R392 4K7R2J-2-GPR392 4K7R2J-2-GP

R391 10KR2J-3-GPR391 10KR2J-3-GP

1 2

PBY160808T-301Y-N-GP

E10U50VM-25-GP-U

P1P2V VDDC

SC10U6D3V5KX-4GP

P1P2V ADC_REF

1 2

PBY160808T-301Y-N-GP

SCD1U16V2ZY-2GP

MMBT3906-4-GP

1 2

L308

L310

A

L309

1 2

PBY160808T-301Y-N-GP

SC10U6D3V5KX-4GP

12

C334

SCD1U16V2ZY-2GP

LED_AMBER 5

1 2

12

C336

SCD1U16V2ZY-2GP

12

C333

SCD1U16V2ZY-2GP

12

C331

SCD1U16V2ZY-2GP

12

C304

12

C332

12

C330

Q313

E

R394 1K R2J-1-GPR394 1K R2J-1-GP

C

B

C387

12

C380

SCD1U16V2ZY-2GP

VDDC

VDDP

AVDD_33

30

53

51

I306

GNDB3

BIN3

GNDG3

GIN3

GNDR3

RIN3

SOG3

PANELVCC_ EN2

BKLT_EN2

VGA_DETn3

DDC_WPn3

AUDIO_EN2

VOLUME2

BKLT_ADJ2

MUTE2 KEY_ADC15 KEY_ADC25

KEY_POWER5

EESDA GREEN AMBER VGA_DETn

WP_PRO EESCL

KEY_ADC1 KEY_ADC2 KEY_POWER

7

B-

8

B+

9

G-

10

G+

12

R-

13

R+

11

SOG0

29

P1_0/T2

64

P1_1

63

P3_2/INT0

55

P3_3/INT1

25

P3_6/I2C_MDA_1

26

P3_7/I2C_MDL_1

20

P5_0/PW M0

27

P5_1/PW M1

28

P5_2/PW M2

56

P5_3/PW M3/CLKO1

61

P5_4/PW M4

62

P5_5/PW M5

57

P6_0/ADC0

58

P6_1/ADC1

59

P6_2/ADC2

60

P6_3/ADC3

RTD2280L

52

6

PVDD33

DVDD12

ADC_VDD33

HSYNC16VSYNC

LDO_CTL

17

XIN1XOUT

CE

CLK

23

22

SPI_CE

SPI_SCL/SDIO

DDC_SCL/P3.0/RX DDC_SDA/P3.1/TX

ADC_GND

DGND31DGND

5

32

RST

54

RST

TXE0-/P8_7

TXE0+/P8_6

TXE1-/P8_5

TXE1+/P8_4

TXE2-/P8_3

TXE2+/P8_2

TXE3-/P8_1

TXE3+/P8_0

4

REXT

TXO0-

TXO0+

TXO1-

TXO1+

TXO2-

TXO2+

TXO3-

TXO3+

TXOC-

TXOC+

ADC_REF

ADC_GND

AGND

3

STANDBY_ATTN

40 39 38 37 36 35 34 33

50 49 48 47 46 45 42 41

44 43

19 18

15 14

LV_A7 LV_A6 LV_A5 LV_A4 LV_A3 LV_A2 LV_A1 LV_A0

LV_B7 LV_B6 LV_B5 LV_B4 LV_B3 LV_B2 LV_B1 LV_B0

ADC_REF

STANDBY_ATTN 2,5

LV_A[0..7]

LV_B[0..7]

TXOC- 5 TXOC+ 5

DDC_SCL_VGA 3

DDC_SDA_VGA 3

LV_A[0..7] 5

LV_B[0..7] 5

(NC)SC1U10V2KX-1GP

RST

EESCL

EESDA

VGA_DETn

AMBER

WP_PRO

FLASH_WP

CE

KEY_POWER

KEY_ADC1

KEY_ADC2

STANDBY_ATTN

SDIN

SDOUT

24

21

SPI_SDI/SCLK

SPI_SDO/SCSB

2

P3P3V

C383

1 2

12

R337

R337 (NC)4K7R2J-2-GP

(NC)4K7R2J-2-GP

P3P3V

1 2

R334 10KR2J-3-GPR334 10KR2J-3-GP

1 2

R335 10KR2J-3-GPR335 10KR2J-3-GP

1 2

R345 100KR2J-1-GPR345 100KR2J-1-GP

1 2

R348 (NC)100KR2J-1-GPR348 (NC)100KR2J-1-GP

1 2

R355 100KR2J-1-GPR355 100KR2J-1-GP

1 2

R336 10KR2J-3-GPR336 10KR2J-3-GP

1 2

R340 10KR2J-3-GPR340 10KR2J-3-GP

1 2

R352 100KR2J-1-GPR352 100KR2J-1-GP

1 2

R341 4K7R2J-2-GPR341 4K7R2J-2-GP

1 2

R353 4K7R2J-2-GPR353 4K7R2J-2-GP

1 2

R354 (NC)4K7R2J-2-GPR354 (NC)4K7R2J-2-GP

B

C

D

E

F

G

I305

7

WC#

6

SCL

5

SDA

8

VCC

M24C16-WMN 6-1GP

VSS

1

E0

2

E1

3

E2

4

GREEN

P5V

MMBT3906-4-GP

R396 4K7R2J-2-GPR396 4K7R2J-2-GP

1 2

R393 10KR2J-3-GPR393 10KR2J-3-GP

E

1 2

Q314

R395 1K R2J-1-GPR395 1K R2J-1-GP

C

B

1 2

LED_GREEN 5

1 2

SC22P50V2JN-4GP

X301

XTAL-14D31818MHZ-7-GP

X301

1 2

SC22P50V2JN-4GP

C388

C389

VCTRL2 HSYNC3 VSYNC3

1 2

12

1 2

R342 0R2J-2-GPR342 0R2J-2-GP

R375

(NC)1MR2J-1-GP

R343 560R2J-3-GPR343 560R2J-3-GP

1 2

XIN

XOUT

CE SDOUT FLASH_WP

R399 22R 2J-2-GPR3 99 22R2J-2-GP R400 22R 2J-2-GPR4 00 22R2J-2-GP R401 22R 2J-2-GPR4 01 22R2J-2-GP

XIN

XOUT

1 2 1 2 1 2

R339

(NC)10KR2J-4-GP

R339

EESCL EESDA

I304

1

CE#

2

SO

3

WP#

4

GND

PM25LV010A-100SCE-GP

1 2

VCC

HOLD#

SCK

P3P3V

8 7

R403 22R 2J-2-GPR4 03 22R2J-2-GP

6 5

SI

1 2

R402 22R 2J-2-GPR4 02 22R2J-2-GP

1 2

12

C335

SCD1U16V2ZY-2GP

R397 100R 2J-2-GPR397 100R 2J-2-GP

1 2

R398 100R 2J-2-GPR398 100R 2J-2-GP

1 2

CLK SDIN

WP_PRO

P3P3V

C390

SCD1U16V2ZY-2GP

C390

12

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

E

F

G

PCB No.

L9142-1M

8.3.3.5 ACER_LCD_A211H/A221HQ(1A)_SCHEMATICS_INTERFACE BOARD_PANEL INTERFACE&KEY:

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

81

A

B

C

D

E

F

G

LV_A[0..7]4

LV_B[0..7]4

VLCD2

LV_A[0..7]

LV_B[0..7]

TXOC-4 TXOC+4

LED_AMBER4 LED_GREEN4

KEY_ADC24 KEY_ADC14

KEY_POWER4

STANDBY_ATTN2,4

PTWO-CON30-3- GP-U

CN304

32

31

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P

LVA1M LVA1P

LVA2M LVA2P LVBCKM LVBCKP LVA3M LVA3P

VLCD VLCD

30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2

1

LVA3PLV_A0 LVA3MLV_A1 LVA2PLV_A2 LVA2MLV_A3 LVA1PLV_A4 LVA1MLV_A5 LVA0PLV_A6 LVA0MLV_A7

LVB3PLV_B0 LVB3MLV_B1 LVB2PLV_B2 LVB2MLV_B3 LVB1PLV_B4 LVB1MLV_B5 LVB0PLV_B6 POWER_KEY LVB0MLV_B7

LVBCKM LVBCKP

LED_AMBER LED_GREEN

KEY_ADC2 KEY_ADC1

KEY_POWER

ATTN

LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P

LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P

LVA1M LVA1P

LVA2M LVA2P LVBCKM LVBCKP LVA3M LVA3P

(NC)JCE-CON 30-1-GP

32 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

9 8 7 6 5 4 3 2

1

31

CN308

P3P3V

LED_AMBER ATTN KEY_POWER

LED_GREEN

100R2J-2-GP

1 2

R372

KEY_ADC1

R372

1 2

R373

100R2J-2-GP

1 2

R351 0R 2J-2-GPR351 0R 2J-2-GP

1 2

R388 (NC)100R2J-2-GPR388 (NC)100R2J-2-GP

1 2

R374 100R 2J-2-GPR374 100R 2J-2-GP

1 2

R350 0R 2J-2-GPR350 0R 2J-2-GP

1 2

L311 (NC)PBY160808T-30 1Y-N-GPL311 (NC)PBY160808T-30 1Y-N-GP

P3P3V2,4

56KR2F-GP

P3P3V P3P3V

12

R370

12

C366

SCD1U16V3KX-3GP

KEY2 KEY1

POWER_KEY

12

R371

56KR2F-GP

12

C367

A

CN305

KEY2KEY_ADC2

LED_GREEN LED_AMBER

12

SCD1U16V3KX-3GP

12

C368

SCD1U16V3KX-3GP

KEY1

12

C370

C369

C370

SCD1U16V3KX-3GP

CN305

1

2 3 4 5 6 7

JWT-CON7-4-GP

KEY2

KEY1 GREEN AMBER GND POWER GND

B

C

(NC)PTWO-C ON6-11-GP-U

Tact Touch

8 6 5 4 3 2

1

7

12

C374

12

C377

C375

C377

12

C378

C376

CN307

GND KEY2 KEY1 AMBER POWER

GREEN

GND SDA SCL ATTN EN/Power key

VCC

D

E

(NC)SC47P50V3JN-GP

(NC)SCD1U16V3ZY-GP

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9142-1M

8.4 ACER_LCD_A211H/A221HQ_LAYOUTS_POWER BOARD(1A1D1H/1A1D/1A/1A1D1H+OD):

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

TOP SICK BOTTOM SICK

ACER A211H/A221HQ

Go to contents page

82

A

B

C

D

A

B

C

D

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9382-SF

E

F

G

8.5 1A1D1H/1A1D/1A):ACER_LCD_A211H/A221HQ＿LAYOUTS_FUNCTION KEY BOARD(

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

TOP SICK BOTTOM SICK

ACER A211H/A221HQ

Go to contents page

83

A

B

C

D

A

B

C

D

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L0202-1

E

F

G

8.6 ACER_LCD_A211H/A221HQ_LAYOUTS_ :

8.6.1 ACER_LCD_A211H/A221HQ_LAYOUTS_ :

INTERFACE BOARD

INTERFACE BOARD_1A1D1H

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

ACER A211H/A221HQ

Go to contents page

84

A

B

C

TOP SICK

BOTTOM SICK

A

B

C

D

E

F

G

D

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9141-1

ACER A211H/A221HQ

85

8.6.2 ACER_LCD_A211H/A221HQ_LAYOUTS_ :INTERFACE BOARD_1A1D

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

TOP SICK BOTTOM SICK

A

B

Go to contents page

A

B

C

D

E

F

C

D

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9137-1M

G

ACER A211H/A221HQ

86

8.6.3 ACER_LCD_A211H/A221HQ_LAYOUTS_ :INTERFACE BOARD_1A

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

TOP SICK BOTTOM SICK

A

B

Go to contents page

A

B

C

D

E

F

C

D

E

F

G

1　　　　　　　　　　　　　　　　　　2　　　　　　　　　　　　　　　　　3　　　　　　　　　　　　　　　　　　4　　　　　　　　　　　　　　　　　5　　　　　　　　　　　　　　　　　　6　　　　　　　　　　　　　　　　　7　　　　　　　　　　　　　　　　　　8　　　　　　　　　　　　　　　　　9　　　　　　　　　　　　　　　　　10　　　　　　　　　　　　　　　　11　　　　　　　　　　　　　　　12　　　　　　　　　　　　　　　13　　　　　　　

PCB No.

L9142-1M

G

Acer LCD A211H, A221HQ Service manual

Contents

Important Safety Notice

1. Product Specification

2. OSD Menu

Acer logo

3. Exploded Diagram

4. Assembly and Disassembly Procedures

5. Troubleshooting

6. Firmware Upgrade Process

7. Writing EDID Process

8.2 ACER_LCD_A211H/A221HQ_SCHEMATICS_FUNCTION KEY BOARD(1A1D1H/1A1D/1A):

ACER_LCD_A211H/A221HQ_SCHEMATICS_INTERFACE BOARD

8.3.1 ACER_LCD_A211H/A221HQ_SCHEMATICS_INTERFACE BOARD_1A1D1H