ACER AL1511 User Guide

Acer AL1511

Service Guide

Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in 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 Gives 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 Remind you to do specific actions relevant to the accomplishment 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 cases, please contact your regional offices or the responsible personnel/channel to provide you with further technical details.

2. Please note WHEN ORDERING 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 PROVIDERS, 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 ENERGY STAR energy efficiency.

Partner our company has determined that this product meets the ENERGY STAR

guidelines for

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

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

wet basement.

z 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. Use 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 follow the kit instructions.

z Slots and openings in the back and bottom of the cabinet are provided 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.

z 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.

z 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.

z 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.

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

z 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

z 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.

z The wall socket shall be installed near the equipment and shall be easily accessible. z For use only with the attached power adapter (output 12V DC), which has UL, CSA listed license

Specific notes in LCD monitor

The following symptoms are normal with LCD monitor and do not indicate 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.

Revision List

Revision Release Date Modify Instruction TPV Model

A00 Nov.-11-2005 Initial Release

T560KVNHKGAGA T560KVNHKGADAP

Table of Contents

Chapter 1 Monitor Features……..………………………………………………………………………………………………6

Chapter 2 Operating Instructions……………………………………………………………………………………………16

Revision List ……………………………………………………………………………………………………….4 Table of Contents……………………………………………………………………………………………………5

Monitor Features……………………………………………………………………………………………………6

Factory Preset Timing Table………………………………………………………………………………………7

Monitor Block Diagram……………………………………………………………………………………………..8

Main board Block Diagram………………………………………………………………………………………..9

Software Flowchart………………………………………………………………………………………………..10

Main board Layout…………………………………………………………………………………………………12

Front panel………………………………………………………………………………………………………….14

Rear cover…………………………………………………………………………………………………………..15

External Controls…………………………………………………………………………………………………..16

Front Panel Controls……………………………………………………………………………………………….17

OSD Menu …………………………………………………………………………………………………………18

Hot-Key Menu…………………………………………………………………………………………………….. 20

OSD Message……………………………………………………………………………………………………...20

LOGO……………………………………………………………………………………………………………….21

Chapter 3 Machine Disassembly…………………………………………………………………………………………...22

Chapter 4 Troubleshooting………………………………………………………………………………………………….28

Chapter 5 Connector Information…………………………………………………………………………………………..34

Chapter 6 FRU (Field Replacement Unit) List…………………………………………………………………………….35

Exploded Diagram………………………………………………………………………………………………36

Chapter 7 Schematic Diagram………………………………………………………………………………………………..41

Main Board.…………………………………………………………………………………………………………41 For T560KVNHKGADAP model……………………………………………………………………………….41

For T560KVNHKGAGA model.………………………………………………………………………………46

Power Board………………………………………………………………………………………………………51

Monitor Features

Driving system TFT Color LCD

Size 38.1 cm (15.0")

Chapter 1

Panel Type SVA150XG04TB

Display Area 304.128mm(W) X: 228.096mm(H)

Pixel pitch 0.297mm(H) x 0.297mm(V)

Brightness

250cd/m

(type)

Contrast Ratio 450:1 (type)

LCD Panel

Viewable angle

120° (H) /100° (V) (type)

Response time 16ms (Tr + Tf) (type)

Display Color 16.7M

Weight 1000g(type)

Video R, G, B Analog Interface

Input

H-Frequency 30KHz – 60KHz

V-Frequency 55-75Hz

Dot Clock 80MHZ

Max. Resolution 1024 x 768 @75Hz

Plug & Play

VESA DDC2B

ON Mode ≤30W

EPA ENERGY STAR®

OFF Mode ≤2W

Input Connector D-Sub 15pin

Analog:0. 7Vp-p(standard),

Input Video Signal

75 OHM, Positive

Maximum Screen Size Horizontal: 304.1mm; Vertical: 228.1mm

Power Source 100~264VAC,47~63HZ

Operating Temp: 0° to 40°C

Environmental

Storage Temp: -20° to 60°C

Considerations

Operating Humidity: 10% to 85%

Dimensions 345(W) X353 (H) X160 (D) mm

Weight (N. W.) 2.7kg Unit (net)

Power Consumption (Maximum) 30 Watts

Regulatory Compliance

CUL, FCC, VCCI, CCC, MPR II, CE, TÜV/GS, TCO’99, ISO13406-2

Factory Preset Timing Table

Video Mode Resolution

Horizontal

Frequency (KHz)

640 x 480 31.469 59.940

Vertical

Frequency (Hz)

VGA

VESA

IBM DOS 720 x 400 31.469 70.087

MAC XGA

SVGA

XGA

640 x 480 37.500 75.000

640 x 480 37.861 72.809

800 x 600 35.156 56.250

800 x 600 37.879 60.317

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

1024 x 768 48.870 60.001

1024 x 768 60.241 74.927

Monitor Block Diagram

The LCD Monitor will contain a main board, an inverter/an internal adapter board, a keypad board and an audio board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel and the DC-DC conversion. The Adapter will provide the 12V DC-power to inverter/power board.

Monitor Block Diagram

CCFL Drive

Flat Panel and CCFL backlight

(Include: adapter, inverter board)

Power board

Main Board

RS232 Connector For white balance adjustment in factory mode

Keyboard

Audio board

AC-IN 100V-240V

HOST Computer

Video signal, DDC

Main Board Block Diagram

(

)

(

CRYS

For T560KVNHKGADAP model

MCU (U101)

NT68F63L

OSD Control

Interface

(Keypad)

EEPROM

AT24C16

U103)

X101

CRYSTAL 2MHz

Scalar NT68521A-XFG (U102)

(Include MCU, ADC, OSD)

RXD TXD

D-Sub Connector

DB15_SDA

DB15_SCL

RGB

(CN107)

LCD Interface (LVDS)

(CN104)

H-SYNC V-SYNC

For T560KVNHKGAGA model

MCU (U402)

NT68F633

OSD Control

Interface

(Keypad)

EEPROM

M24C16

U403)

X401

TAL 12MHz

EDID-EEPROM

M24C02

Scalar NT68523EFG (U401)

(Include MCU, ADC, OSD)

RXD TXD

D-Sub connector (CN404)

DB15_SDA

DB15_SCL

RGB

EDID-EEPROM

M24C02

H-SYNC

-SYNC

LCD Interface (LVDS)

(CN101)

Software Flow Chart

1) MCU initializes.

2) Is the EEPROM blank?

3) Program the EEPROM by default values.

4) Get the PWM value of brightness from EEPROM.

5) Is the power key pressed?

6) Clear all global flags.

7) Are the AUTO and SELECT keys pressed?

8) Enter factory mode.

9) Save the power key status into EEPROM. Turn on the LED and set it to green color. Scalar initializes.

10) In standby mode?

11) Update the lifetime of back light.

12) Check the analog port, are there any signals coming?

13) Does the scalar send out an interrupt request?

14) Wake up the scalar.

15) Are there any signals coming from analog port?

16) Display "No connection Check Signal Cable" message. And go into standby mode after the

message disappears.

17) Program the scalar to be able to show the coming mode.

18) Process the OSD display.

19) Read the keyboard. Is the power key pressed?

Main board Layout

For T560KVNHKGADAP model

Item Description

U102 NT68521A-XFG (Scaler) U101 NT68F63L/G44L-PLU (MCU)

X101 CRYSTAL 12MHz HC-49US A (For MCU) CN102 WIRE HARNESS CN107 D-SUB 15P CN105 WAFER 2*6P 2.0MM R/A CN106 PIN HEADER 2*7 R/A

U103 AT24C16AN-10SU-2.7

U501 A1C1084-33PE

U502 AI1117D-1.8-EI

For T560KVNHKGAGA model

Item Description

U401 NT68523EFG (Scaler) U402 NT68F633 (MCU) X401 CRYSTAL 12MHz HC-49US A

CN404 D-SUB 15PIN CONNECTOR

U403 M24C16-WMN6TP

U405 M24C02-WMN6TP CN101 WAFER 14P 2.0MM DIP CN403 WAFER 16PIN 2.0mm DIP CN701 WAFER 2*6P 2.0MM R/A CN702 PIN HEADER 2*7 R/A

Front Panel

1. Auto Adjust Key/Exit 4. MENU/ENTER

2. < /Volume 5. LED

3. > /Volume 6.

Power Key

Rear cover

Item Description

1. Power cord

2. Signal Cable

3. Audio Cable

+ 37 hidden pages