Acer BV193HQ Schematic

Acer Acer –LCD-BV193HQ

Service Manual

LCD Monitor Acer BV193HQ

- 0 -

1

Table of Contents

Important Safety Notice ......................................................................................01

01 Product Specification .......................................................................................03

02 Flat Panel Specification ....................................................................................23

03 Exploded Diagram ............................................................................................50

04 Troubleshooting..................................................................................................53

05 Spare Parts List .................................................................................................60

06 Schematics and Layouts....................................................................................61

07 Assembly and Disassembly .............................................................................70

Appendix : User’s manual

This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of InnoLux Tech. Corp. Ltd.

Acer BV193HQ Service Manual

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Acer Acer –LCD-BV193HQ

Important Safety Notice

1. Safety precautions

This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user.

Warning:

z This monitor should be operated only at the correct power sources indicated on the label

on the rear of the monitor. If you’re unsure of the power supply in you residence, consult your local dealer or Power Company.

z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This

monitor should only be repaired by a qualified technician.

z Do not remove the monitor cabinet. There are high-voltage parts inside that may cause

electric shock to human bodies.

z Stop using the monitor if the cabinet is damaged. Have it checked by a service technician. z Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power

cable immediately and consult your closed dealer.

z Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth.

Apply non-ammonia based cleaner onto the cloth, not directly onto the class screen.

z Do not place heavy objects on the monitor or power cord.

2. Product safety notice

Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts, which do not have the same safety characteristics as specified in the parts list, may create shock, fire, or other hazards.

3. Service notes

z When replacing parts or circuit boards, clamp the lead wires around terminals before

soldering.

z Keep wires away from high voltage, high temperature components and sharp edges.

z Keep wires in their original position so as to reduce interference.

z Adjustment of this product please refers to the user’ manual.

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Acer Acer –LCD-BV193HQ

01 Product Specification

1. General:

Acer BV193HQ is designed with LVDS interface and dual (analog and digital signal) input, it featured with embedded universal AC power supplies and audio input. It’s a green product and meets all ROHS standard. The power button and display control buttons are on the front of the monitor. The monitors shall automatically to display lower resolution video modes into 1366x768 full screen display. The image can be adjusted through OSD control.

1.1 Main Features

Features Specifications

Panel source

M185XW01-V0

Maximum resolution

Back light system 2 CCFL

Actual Resolution display WXGA(1366x768)

Pixel pitch

Display area 409.8 ( H ) x230.4 ( V ) , 18.5” diagonal

Contrast ratio 10000:1(ACM ON)

Response time (Tr+Tf) 5ms (typ.),

Viewing angle

Input interface

Audio system

Power management Compatible with VESA,EPA,NUTEK,DPMS

Plug & Play VESA

University AC power supply YES

OSD language

For Non-EMEA For EMEA

1366x768 @ 60Hz

0.3(H) x 0.3(V)

85°(L)/ 85°(R), 80°(U)/80°(D) typ. CR>=10)

Analog(D-sub 15 pin) Digita(DVI-D connector )----option

≧ 1 W + 1 W

English, Deutsch, Español, 简体中文, 繁體中文, Français, Italiano, 日本語 English, Deutsch, Español, Dutch, Russian, Français, Italiano, Finnish

1.2 Accessories

Items VGA cable

Description 1.8m 1.8m 1.8m Multi Multi Multi

● ● ● ● ● ●

DVI

cable

Audio cable

User’s

manual

Warranty card Quick-start Guide

2. Operation Specifications

The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality

during exposure to the operating conditions and after exposure to the non-operating conditions, in any sequence.

2.1 Environmental conditions

Operating Specification

Temperature range

Relative humidity 20% to 80%

Altitude 0 to 3657M (12000 ft)

Storage

Temperature range

Relative humidity 5% to 80%

Altitude 0 to 12191M (40000 ft)

5°C to 40°C

-20°C to 60°C

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Acer Acer –LCD-BV193HQ

2.2 Safety, EMC, Ergonomics and Compatibility Requirements

Items Description

Safety

UL/cUL CB TUV/GS CCC BSMI Other

● ● ● ● ●

FCC-B CE/EMC CCC VCCI C-Tick BSMI

EMC

● ● ● ● ● ●

TCO99 TCO03

Ergonomics

● ●

Windows 95/98/Me Windows 2000 Windows XP Vista

Compatibility

● ● ● ●

Power

Management

Energy Star

●

2.3 Electrostatic Discharge Requirements

Item Condition Spec

Electrostatic Discharge IEC61000-4-2(EN55024)

2.4 Reliability

Nemko/Erg

Contact discharge : +4KV

Contact discharge : +8KV

Air discharge : +8KV

Air discharge : +15KV

●

Items Condition Spec Note

MTBF

CCFL Life time Luminance becomes 50%

Note1. Display an all WHITE field at mid Brightness and Contrast settings.

Operating condition is 40°C ≧ 50,000 Hours

≧ 40,000 Hours(min)

Excluding the

LCD, CCFL

Note1

3. Electrical and Optical Characteristics and Performance

3.1 Main Power Supply

Items Condition Spec Note

AC Input Voltage Range Universal input full range 100~240VAC /50~60Hz

AC Input Current 100Vac

240Vac

AC Frequency Range 100Vac

240Vac

Inrush Current

Regulator Efficiency

Ripple and Noise

DC Output Voltage and Current

Power consumption with Audio ≤25W

120Vac,cold star,0°C

240Vac,cold star,0°C

DC output full loading ≥75%

+14.2V output <400mv

+5.2Vcc output <150mv

+5.2V audio output <200mv

VCC14.2V(13.5~16.3V);

VCC5.2V(4.95~5.45V);

Audio VCC5.2V(4.95~5.45V)

1.2A(max)

0.6A(max)

50Hz – 60Hz

30A (max)

60A(max)

0.8A(typ.),1.0A(max)

0.5A(typ.),0.6A(max)

Note4

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Protection

Power management See Table-2

Note2. Before each test, the buck capacitor need to be discharged.

Before each test, it must be 10 minutes at least after the latest test.

Note4. ested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic , Capacitors and measured

band-width with DC-20MHz, the sine wave signal that the frequency is 1K Hz input when testing the ripple for the

5V of audio.

Table-1

Protection Condition Spec

OPP(Over power protection) nominal AC input 32W ( min )

Table-2

Status

Power On on on active

Power Saving

Power Off -- -- -- < 1W Off

See Table-1

H-sy

nc

V-s y

nc

off on blanked < 2W Amber

on off blanked < 2W Amber

off off blanked < 2W Amber

Video Power LED

≤ 25W

Blue

3.2 Backlight Power Supply

: AUO M190PW01 V0

Panel

Items Specification

Lamp 2 CCFL

Input Voltage 13.5V~ 16.3 V

Input current 0.8A (Typ.), 1.0A (Max.)

On/Off switch level

Brightness PWM duty

CCFL operating Voltage 734Vrms (Typ.),

CCFL Current

CCFL startup voltage

Operating frequency 40~80 KHz

Protect delay time > 1 second

Lamp 2 CCFL

5.5V≧Von≧ 2.0 V (on)

-0.3v ≤ Voff ≤ 0.8 V (off)

Extra PWM duty:18%~100%(DCR);35%~100%(CR);

PWM:High=3.3V(3.0~3.30V),Low=0.0V

DCR:1.6 mA (min.); CR:3.0 mA (min)

7.5mA (Typ.)

8.0mA (Max.)

≧1700 Vrms (0˚C)

3.3 Brightness output

The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted.

Temperature : 25 ± 5°C Test pattern : white Video Resolution : 1366 x 768 Video input level : 700 mV ± 2% Warm-up time : 30 minutes

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LCD Module BL

M185XW01-V0

Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ BL cd/m

2

(as panel spec)

≥250 cd/m

3.4 White balance

2

Mode

Cool

Warm

User

The test standard conditions refer to Sec 3.3. (Brightness and contrast are under default value)

9300K 0.283 ± 0.030 0.297 ± 0.030

6500K 0.313 ± 0.030 0.329 ± 0.030

Panel While x Panel While y

Chromaticity Coordinate

x y

3.5 Brightness uniformity

The test standard conditions refer to Sec 3.3.

)(backlight points nine of luminance Min. )(backlight points nine of luminance Max.

%≥75

4. Input / Output Signal Specifications

4.1 Video signals

Items Condition Specification

Analog RGB signal

Sync

Signal Timing

4.2

Through D-SUB/DVI connectors, this unit can support FH= 31~80 KHz, Fv=55~76Hz, Modes details as below:

Mode

MAC 640x480@66.66Hz 864x525 35 66.66 30.24

VESA 720x400@70Hz 900x449 31.469 70.087 28.322

Resolution

(active dot)

640x480@60Hz 800 x 525 31.469 59.941 25.175 640x480@72Hz 832 x 520 37.861 72.809 31.500 640x480@75Hz 840 x 500 37.500 75.000 31.500

Input impedance = 75 Ohm 0.7Vp-p

Input impedance ≧ 1k Ohm

Resolution

(total dot)

Horizontal

Frequency (KHz)

6

TTL level, Separate H/V-sync(+/-)

Vertical

Frequency (Hz)

Nominal Pixel

Clock (MHz)

Acer Acer –LCD-BV193HQ

800x600@56Hz 1024 x 625 35.156 56.250 36.000

SVGA

MAC 832x624@74.55Hz 1152x667 49.722 74.55 57.28

XGA

MAC 1152x870@75Hz 1568x909 68.700 75.000 84.520

VESA

SXGA

VESA

WXGA

800x600@60Hz 1056 x 628 37.879 60.317 40.000 800x600@72Hz 1040 x 666 48.077 72.188 50.000 800x600@75Hz 1056x625 46.875 75.000 49.500

1024x768@60Hz 1344x806 48.363 60.004 65.000 1024x768@70Hz 1328x806 56.476 70.069 75.000 1024x768@75Hz 1312x800 60.023 75.029 78.750

1152x864@75Hz 1600x900 67.5 75 108

1280x960@60Hz 1800x1000 60 60 108 1280x1024@60Hz 1688x1066 63.981 60.020 108.000 1280x1024@75Hz 1688x1066 79.976 75.025 135.000

1280x720@60Hz 1650x750 44.955 59.940 74.176

1280x800@60Hz 1680x831 49.702 59.810 83.500

1366x768@60Hz 1792x798 47.712 59.790 85.500

Note:

1. Non-interlace signals only (An interlace signal cannot be display)

2. Please refer to F/W specification for more detail

3. Each frequency of Power Macintosh and Sun Ultra is a reference value

4.2.1 Digital signals

TMDS Signal: (min) ±200mVpp@24Bit

4.3 Timing requirements

Scan Frequency Condition Specification

Horizontal

Vertical

Out of range

4.4 DDC data

4.4.1

B193HQ VGA EDID table

EDID Standard Compliance

EDID File Format : VESA’s EDID Standard Version1.0, Revision 12, EDID Structure : Version #1, Revision #3. EDID Data Table : See the attached table (for example)

0 1 2 3 4 5 6 7 8 9 A B C D E F

Sync polarity: (+) or (-)

Excluding Horizontal 31~80 KHz or Vertical 55-76 Hz

31 ~ 80 KHz.

55-76Hz

Message “Input Not Supported” on screen

00 FF FF FF FF FF FF 00 04 72 6B 00 00 00 00 00

0

00 00 01 03 08 29 17 78 EA 3D 85 A6 56 4A 9A 24

1

12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F

2

01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F

3

33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30

4

30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37

5

4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC

6

00 42 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS

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Acer Acer –LCD-BV193HQ

B193HQ DVI EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

00 FF FF FF FF FF FF 00 04 72 6B 00 00 00 00 00

0

00 00 01 03 80 29 17 78 EA 3D 85 A6 56 4A 9A 24

1

12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F

2

01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F

3

33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30

4

30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37

5

4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC

6

00 42 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS

7

V193HQ VGA EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

00 FF FF FF FF FF FF 00 04 72 6D 00 00 00 00 00

0

00 00 01 03 08 29 17 78 EA 3D 85 A6 56 4A 9A 24

1

12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F

2

01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F

3

33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30

4

30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37

5

4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC

6

00 56 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS

7

V193HQ DVI EDID table

0 1 2 3 4 5 6 7 8 9 A B C D E F

00 FF FF FF FF FF FF 00 04 72 6D 00 00 00 00 00

0

00 00 01 03 80 29 17 78 EA 3D 85 A6 56 4A 9A 24

1

12 50 54 BF EF 90 01 01 81 00 81 80 81 40 71 4F

2

01 01 01 01 01 01 66 21 56 AA 51 00 1E 30 46 8F

3

33 00 9A E6 10 00 00 1C 00 00 00 FF 00 30 30 30

4

30 30 30 30 30 30 30 30 30 0A 00 00 00 FD 00 37

5

4C 1F 50 09 00 0A 20 20 20 20 20 20 00 00 00 FC

6

00 56 31 39 33 48 51 0A 20 20 20 20 20 20 00 CS

7

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Acer Acer –LCD-BV193HQ

4.5 Audio signal

Items Specification

Input impedance

Frequency response range

Signal to noise ratio

Output power

≧ 10K ohm

200Hz – 20kHz

≧ 40 dB ≧ 1.0 W + 1.0 W ( 10%THD )

5. Function Specifications

All the tests to verify specifications in this section shall be performed under the following standard conditions

unless otherwise noted. The standard conditions are:

Temperature : 25 ± 5°C Warm-up time : 30 minutes minimum Checking display modes : All the specified modes

5.1 Panel general specifications

5.1.1 General specifications

AUO

Supplier

Model name

Display Area 409.8 ( H ) x230.4 ( V ) , 18.5” diagonal

Pixel Pitch 0.3(H) x 0.3(V)

M185XW01-V0

Display Colors: 16.7 Million (RGB 6-bit + HiFRC)

Number of Pixel 1366x768 pixels

Pixel Arrangement RGB vertical stripe

Brightness 300cd/m2 (Typ.) 250cd/m2 (Min.)

Contrast Ratio 1000:1 Typical

Viewing Angle

Display Mode Normally White

Frame rate 60Hz

Response Time Tr + Tf = 5ms Typical

Surface Treatment

Lamp 2 CCFL

Outline Dimension 430.37(W)x254.6(H)x16.5(D) Typ

5.1.2

LCD module defects

LCD module defects check follow to the IIS.

85°(L)/ 85°(R), 80°(U)/80°(D) typ. CR>=10)

Anti-glare, Haze = 25%, Hard coating (3H)

5.2 Keypad Function

5.2.1

Control buttons on the front bezel

CONTROL KEY KEYS FUNCTION

A. When OSD un-displays, press [AUTO] to perform auto-adjustment

[AUTO]

B. When OSD displays, press [AUTO] to return to previous level menu C. When “e Color OSD” OSD displays, press [AUTO] to exit the OSD

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Acer Acer –LCD-BV193HQ

A. When OSD isn’t shown on screen, press [MENU] to enter OSD interface. The OSD

interface uses “ACER e Color Management” and “User” to instead “Contrast” and “Brightness” separately. When press “ACER e Color Management” to show “e Color OSD”, and press “User” to show OSD interface before. The translations of “ACER e

Color Management” and “User” are always English. B. When OSD displays, press [MENU] to perform function of menu icon that is highlight or enter next level menu

A. When “MENU OSD” displays, press these keys to change the contents of an

adjustment item, or change an adjustment value

B. When “MENU OSD” un-displays, if it is with audio, press [►] to show “Audio” OSD and

increase the volume, press [◄] to show “Audio” OSD and decrease the volume; else it has no use to press these keys.

A. When OSD un-displays, press [e Color] to show “e Color OSD”, and press again the

OSD can not disappear, but the time of “e Color OSD” disappearing is reset 10 second again.

B. When OSD disappear not including “e Color OSD”, press [e Color] to show “e Color

OSD” OSD, the OSD before disappears, but the parameters of it should be saved

5.2.2

[MENU]

[►], [◄]

[e Color ]

[POWER] Power on or power off the monitor

Hot Key Operation

HOT KEY OPERATION

FUNCTION

FACTORY MODE

AUTO

e Color

●

◄

MENU POWER

►

●

ON

Press [e Color ] & [MENU] at the same time, and then press [POWER] for DC power on. OSD menu will be shown with “F” on the left top. Select “F” for entering factory mode.

5.3 OSD Structure

The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control unit. The unit shall leave the factory with all OSD controls set to their default values.

First Second Third Control Range Default Value

Brightness

ACER eColor Management

User

Contrast

Brightness

e

mpowering

Technology

10

---

0 ~ 100

Standard mode

User mode

Text mode 50

Standard mode 50

Graphics mode 60

Movie mode 56 User mode

50

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Acer Acer –LCD-BV193HQ

ACM

Text mode 44

Standard mode 77

Graphics mode 97

Movie mode 77

OFF

Image

Position

Color

Language

Focus

Clock

H. Position

V. Position

Warm (6500K)

Cool (9300K)

User

NO-EMEA EMEA

English English

Deutsch Deutsch

Español Español

简体中文

5.4 Upgrade firmware SOP

1. System Frame

Dutch

---

0 ~ 100

Depend on each timing

50 ○1

50

Depend on each timing

--- ---

Red

Green

Blue

0 ~ 100

80

--- ---

English

--- ---

2. Function Description

A. ISP ON

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Acer Acer –LCD-BV193HQ

Set In-System Programming Enable

B. ISP OFF

Set In-System Programming Enable

C. Load File

Load Hex File to Buffer

D. Erase

Erase MCU Fash Rom

E. Program

Write Buffer Data to MCU Flash Rom

F. Auto

ISP ON→Erase→Promgram→ISP OFF

G. View Hex

View Hex File in Buffer

H. CheckSum

Read Data from MCU

3. Initial Setting

A. After Setup EasyWriter, We must set EasyWriter settings according our environment. B. In “Option”, Select “Setup ISP tool”

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Acer Acer –LCD-BV193HQ

C. How to Setting

z Connect to Novatek ISP Board by USB, Select “NVT EasyUSB”. z USB IIC Speed Limit, Suggestion : Select “Low Speed”. z After Setting, Select “Comfirm Change” to confirm your change.

4. How to Program File to MCU Flash Rom

A. Step 1. Load Hex File to Buffer

z Select “Load File” Button

z Select File Type “Bank Switch(128k, 256k) z Select *.H00(* = FW Project Name(define in KeilC)

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Acer Acer –LCD-BV193HQ

z Select Confirm, Load File OK

B. Step 2. Set In-System Programming Enable

z Select “ISP ON”, Enable ISP

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Acer Acer –LCD-BV193HQ

C. Step 3. Erase MCU Fash Rom

z Select “Erase”, Erase Flash,Avoid Conflict

D. Step 4. Write Buffer Data to MCU Flash Rom

z Select “Program”, Program Buffer Data to Flash

E. Step 5. Set In-System Programming Disable

z Disable ISP, Start MCU

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Acer Acer –LCD-BV193HQ

F. Auto Mode

z Step2 ~ Step5 = “Auto” z After Step 1,we can select “Auto” directly,to run Program File to MCU Flash Rom

5.5, BV193HQ EDID SOP

1、 Software a.port95nt.exe

b.Edidtool.exe c.BV193HQ model

2、Hardware a.PC（winXP or win2000）1PCS； b.Tool（EDID Card、VGA cable & DVI cable)

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Acer Acer –LCD-BV193HQ

3. .First set up Port95nt.exe

4 . Click next button continually then can finish setting.

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Acer Acer –LCD-BV193HQ

5. EDID Tool Set up

C

B

A

A : USB interface provide +5V DC power（No Power is ok ）

B : Connect DDC Card and PC with collateral interface ； C :VGA、DVI use different cable to link DDC and PC

6.

EDID ISP Card:

A

A：Collateral printing interface

(connect with PC) B:VGA interface (one VGA connect with PC to provide signal for monitor

B

the other one connect with PC VGA interface to write VGA EDID, Write EDID can without providing signal) C : DVI interface (connect with PC) D : HDMI Interface E : Connect DC power+5V

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Acer Acer –LCD-BV193HQ

7.

Writing EDID process :

Model name

BV193HQ

CheckSum

System time

BV193HQ

Model

name

SN

MFG

week

Result

State

information

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Acer Acer –LCD-BV193HQ

7.1 Choose File menu in main menu ，choose Auto Write button，click S/N blank .

BV193H

7.2 Cloose the Model in main menu, and the password is 1234.

7.3.Choose the model, such as Acer，

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Acer Acer –LCD-BV193HQ

7.4 Input S/N in the Blank, Eg：ETL7777777777777777777，the program can write directly

BV193HQ

7.5 The program can CHECK VGA&DVI by itself after writing EDID

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Acer Acer –LCD-BV193HQ

BV193HQ

7.6 If write successfully , you can see PASS in the right.

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