Acer AL1713SG Schematic

Acer AL1713

Service Guide

Service guide files and updates are available on the CSD web, for more information, Please refer to http://csd.acer.com.tw

transmitted, transcribed, stored in a retrieval system, or translated into any6 language or computer language, I any

form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior

written permission of Acer Incorporated.

Disclaimer

The information in this guide is subject to change without notice. Acer Incorporated makes no representations or

warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties

of merchantability or fitness for any particular purpose. Any Acer Incorporated software described in this manual is

sold or licensed “as is”. Should the programs prove defective following their purchase, the buyer (and not Acer

Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any

incidental or consequential damages resulting from any defect in the software.

Acer is a registered trademark of Acer Corporation

Intel is a registered trademark of Intel Corporation

Pentium and Pentium II/III are trademarks of Intel Corporation

Other brand and product names are trademarks and/or registered trademarks of their respective holders.

Conventions

The following conventions are used in this manual

Screen Messages Denotes actual messages that appear

on screen

NOTE Give bits and pieces of additional

information related to the current topic.

WARNING Alerts you to any damage that might

result from doing or not doing specific actions.

CAUTION Gives precautionary measures to avoid

possible hardware or software problems.

IMPORTANT Reminds you to do specific actions

relevant to the accomplishments of procedures.

Preface

Before using this information and the product it supports, please read the following general information.

1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION decided for

Acer’s “global” product offering. To better fit local market requirements and enhance product competitiveness, your

regional office MAY have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory

capability). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cased, please

contact your regional offices or the responsible personnel/channel to provide you with further technical details.

2. Please not WHEN ORDER FRU PARTS, that you should check the most up-to-date information available on your

regional web or channel. If, for whatever reason, a part number change is made, it will not be noted in the printed Service

Guide. For ACER-AUTHORIZED SERVICE PROVIEDERS, your Acer office may have a DIFFERENT part number

code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer

office to order FRU parts for repair and service of customer machines.

WARNING (FOR FCC CERTIFIED MODELS)

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15

of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential

installation. This equipment generates uses and can radiate radio frequency energy, and if not installed and used in accordance

with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that

interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television

reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the

interference by one or more of the following measures:

1. Reorient or relocate the receiving antenna.

2. Increase the separation between the equipment and receiver.

3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

4. Consult the dealer or an experienced radio/TV technician for help.

Notice:

1. The changes or modifications not expressly approved by the party responsible for compliance could void the user’s

authority to operate the equipment.

2. Shielded interface cables and AC power cord, if any, must be used in order to comply with the emission limits.

3. The manufacturer is not responsible for any radio or TV interference caused by unauthorized modification to this

equipment. It is the responsibility of the user to correct such interference.

As an ENERGY STAR Partner our company has determined that this product meets the ENERGY STAR guidelines for energy

efficiency.

WARNING:

To prevent fire or shock hazard, do not expose the monitor to rain or moisture. Dangerously high voltages are present inside

the monitor. Do not open the cabinet. Refer servicing to qualified personnel only.

PRECAUTIONS

 Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet

basement.

 Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause

serious damage to the appliance. User only a trolley or stand recommended by the manufacturer or sold with the monitor.

If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and following the kit

instructions.

 Slots and openings in the back and bottom of the cabinet are provide for ventilation. To ensure reliable operation of the

monitor and to protect it from overheating, be sure these openings are not blocked or covered. Do not place the monitor

on a bed, sofa, rug, or similar surface. Do not place the monitor near or over a radiator or heat register. Do not place the

monitor in a bookcase or cabinet unless proper ventilation is provided.

 The monitor should be operated only from the type of power source indicated on the label. If you are not sure of the type

of power supplied to your home, consult your dealer or local power company.

 The monitor is equipped with a three-pronged grounded plug, a plug with a third (grounding) pin. This plug will fit only

into a grounded power outlet as a safety feature. If your outlet does not accommodate the three-wire plug, have an

electrician install the correct outlet, or use an adapter to ground the appliance safely. Do not defeat the safety purpose of

the grounded plug.

 Unplug the unit during a lightning storm or when it will not be used for long periods of time. This will protect the

monitor from damage due to power surges.

 Do not overload power strips and extension cords. Overloading can result in fire or electric shock.

 Never push any object into the slot on the monitor cabinet. It could short circuit parts causing a fire or electric shock.

Never spill liquids on the monitor.

 Do not attempt to service the monitor yourself; opening or removing covers can expose you to dangerous voltages and

other hazards. Please refer all servicing to qualified service personnel.

 To ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate configured

receptacles marked between 100-240V AC, Min. 3.5A.

 The wall socket shall be installed near the equipment and shall be easily accessible.

SPECIAL NOTES ON LCD MONITORS

The following symptoms are normal with LCD monitor and do not indicated a problem.

NOTES

 Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then

turn it on again to make sure the flicker disappears.

 You may find slightly uneven brightness on the screen depending on the desktop pattern you use.

 The LCD screen has effective pixels of 99.99% or more. It may include blemishes of 0.01% or less such as a missing

pixel or a pixel lit all of the time.

 Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switching the image, when

the same image is displayed for hours. In this case, the screen is recovered slowly by changing the image or turning off

the Power Switch for hours.

Table of Contents

Monitor Features .................................................................................................... 7

FACTORY PRESET TIMING TABLE ..................................................................... 8

Monitor Block Diagram ........................................................................................... 9

MAIN BOARD DIAGRAM ..................................................................................... 10

Software Flow Chart ............................................................................................. 11

MONITOR INTERFACE BOARD PCB LAYOUT.................................................. 12

FRONT BEZEL..................................................................................................... 14

BACK VIEW.......................................................................................................... 15

OPERATION INSTRUCTIONS............................................................................. 16

ADJUSTING THE MONITOR ............................................................................... 18

MACHINE ASSEMBLY......................................................................................... 22

TROUTROUBLESHOOTING ............................................................................... 26

FRU (Field Replaceable Unit) LIST ...................................................................... 33

SHEMATIC DIAGRAM ......................................................................................... 38

Monitor Features

Driving System TFT Color LCD

Chapter 1

LCD Panel

Signal

Display Color 6bits+FRC

Max Pixel Clock 135MHz

Max. Resolution 1280 x 1024 @75Hz

Plug & Play VESA DDC 1/2B

EPA ENGERGY STAR ON MODE < 36W

OFF MODE <5W

Size 43.3cm (17.0”)

Pixel pitch 0.264mm (H) x 0.264mm (V)

Viewable angle

Brightness 300cd/m2 (typ.)

Contrast Ratio 450:1 (typ.)

Response Time 25ms (typ.)

Video RGB Analog Interface (Analog only model)

Separate Sync. H/V TTL

H-Frequency 31.5KHz to 85KHz

V-Frequency 56Hz to 75Hz

140 ﾟ(H), 130 ﾟ(V)

Audio Output Rated Power 2.0W rms/channel

Input Connector D-Sub 15pin

Three-Pronged Pin

Input Video Signal Analog: 0.7Vp-p (Standard), 75 OHM,

Positive (Analog-Only Model)

Horizontal 337.920mm Maximum Screen Size

Vertical 270.336mm

Power Source 100~240VAC, 50~60Hz

Environmental Considerations

Weight (Net) 5.6kg

Dimension (W X H X D) 379 x 389 x 159.5 (mm)

Operating Temp: 5℃ to 35℃

Storage Temp: -20℃ to 60℃

Operating Humidity: 5% to 95%

External Controls

Regulatory Compliance UL, CSA, TUS+GS, CG, PSB, B-MARK, PSE, Ergo, FCC, BSMI,

Switch  Power Switch

 Menu

 >

 <

 Auto/Exit

Function  Contrast/Brightness

 Phase/Clock

 H. Position/ V. Position

 Color (Warm, Cool, User)

 Language

 OSD (H. Position, V. Position, Timeout)

 Auto Config

 Information

 Reset

 Exit

VCCI, C-Tick, TCO99, CCC, WHQL

FACTORY PRESET TIMING TABLE

Standard Resolution Horizontal Frequency (KHz) Vertical Frequency (Hz)

VGA

SVGA

XGA

640 x 480 31.469 60.000

640 x 480 37.861 72.809

640 x 480 37.500 75.000

800 x 600 35.156 56.250

800 x 600 37.879 60.317

800 x 600 48.077 72.188

800 x 600 46.875 75.000

1024 x 768 48.363 60.004

1024 x 768 56.476 70.069

1024 x 768 60.023 75.029

1280 x 1024 63.981 60.020 SXGA

1280 x 1024 79.976 75.025

640 x 350 31.469 70.087 IBM

720 x 400 31.470 70.080

MAC

832 x 624 49.725 74.551

1024 x 768 48.780 60.001

1024 x 768 60.241 74.927

Monitor Block Diagram

The LCD Monitor contains an interface board, and inverter/power board, keypad board and flat panel.

In Inverter/power board, power section supplies +12V & +5V for Inverter and Interface board used. The inverter section drives

the backlight of panel and the DC-DC conversion.

Inverter/power board

(Including: AC/DC

Power supply and

inverter)

Keypad board

AC-IN

90V~264V

Flat Panel and CCFL Backlight

Interface board

Host Computer

RS232 Connector

for debug used

Video signal, DDC

MAIN BOARD DIAGRAM

LCD Interface

(CON501)

MCU SM59264

(U402)

Scalar gmZAN3-L

(Include ADC, PLL, OSD,

LVDS transmitter)

(U401)

SDA

SCL

EEPROM

24C08 or 24C04

(U201)

RGB

Hsync

Vsync

OSD Control

(CN201)

(U300)

D-Sub Connector

CON301

SCL_VGA

SDA_VGA

EEPROM

24C02

(U300)

Software Flow Chart

ACER 17” flow chart item description:

1. MCU initialize.

2. Is the EEProm blank?

3. Program the EEProm by default values.

4. Get the user value and mode setting from EEProm.

5. Are the factory key pressed?

6. Enter factory mode.

7. Check the analog port, are there any signal coming?

8. Display “No Signal” message.

9. Enter sleep mode.

10. Wake up the scalar.

11. Program the scalar to be able to show the coming mode.

12. Turn on the LED and set it to green color.

13. Process the OSD display

14. Read the keyboard. Is any key pressed?

(1)

(2)

(4)

(5) (6)

(7)

(10)

(11)

(12)

(3)

(8)

(9)

(13)

(14)

MONITOR INTERFACE BOARD PCB LAYOUT

Symbol Component

U301 S524A40X21/BR24C02F-WE2/AT24C02/HT24LC02

U401 gm2121 (SMD PQFP208)

U402 Flash Memory 1M

W39F010-70/A290011TL-70/S29C51001T-90J

U403 EEPROM S524A60X81/HT24LC04

U701 Audio AMP IC LM4843MH

U801 Regulator SMD TO-263

AP1086K33A/LM1117S3.3/FAN1086M33X

U802 Regulator SMD TO-252 SP1117D25A/LM1117DT-2.5

X401 Crystal 14.318MHz

CN201 S8B-ZR (connect I/F and keypad)

CN301 D-SUB 15PIN connector

CN401 S4BPH-J

CN601 Pitch 1mm FPC connector FPC1S30T11R01

CN701 Audio Jack ST-413-06

CN702 B5B-PH-K (Audio control)

CN801 B12B-PH-K

FRONT BEZEL

ITEM DESCRIPTION

1 Power Tack Switch 2 Menu/Enter 3 > (Up) 4 < (Down) 5 Auto/Exit

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