Acer AL1511 User manual

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Acer AL1511
Service Guide

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Copyright
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.

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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®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.

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Precautions
zDo not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a
wet basement.
zDo 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.
zSlots 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.
zThe 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.
zThe 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.
zUnplug 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.
zDo not overload power strips and extension cords. Overloading can result in fire or electric shock.
zNever 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.
zDo 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
zTo ensure satisfactory operation, use the monitor only with UL listed computers which have appropriate configured
receptacles marked between 100-240V AC, Min. 3.5A.
zThe wall socket shall be installed near the equipment and shall be easily accessible.
zFor 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.

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Revision List
Revision Release Date Modify Instruction TPV Model
T560KVNHKGAGA
A00 Nov.-11-2005 Initial Release T560KVNHKGADAP

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Table of Contents
Revision List ……………………………………………………………………………………………………….4
Table of Contents……………………………………………………………………………………………………5
Chapter 1 Monitor Features……..………………………………………………………………………………………………6
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
Chapter 2 Operating Instructions……………………………………………………………………………………………16
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

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Monitor Features
Driving system TFT Color LCD
Size 38.1 cm (15.0")
Panel Type SVA150XG04TB
Display Area 304.128mm(W) X: 228.096mm(H)
Pixel pitch 0.297mm(H) x 0.297mm(V)
Brightness 250cd/m2(type)
Contrast Ratio 450:1 (type)
Viewable angle 120°(H) /100°(V) (type)
Response time 16ms (Tr + Tf) (type)
Display Color 16.7M
LCD Panel
Weight 1000g(type)
Video R, G, B Analog Interface
H-Frequency 30KHz – 60KHz
Input
V-Frequency 55-75Hz
Dot Clock 80MHZ
Max. Resolution 1024 x 768 @75Hz
Plug & Play VESA DDC2BTM
ON Mode ≤30W
EPA ENERGY STAR®
OFF Mode ≤2W
Input Connector D-Sub 15pin
Input Video Signal
Analog:0. 7Vp-p(standard),
75 OHM, Positive
Maximum Screen Size Horizontal: 304.1mm; Vertical: 228.1mm
Power Source 100~264VAC,47~63HZ
Environmental
Considerations
Operating Temp: 0° to 40°C
Storage Temp: -20° to 60°C
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
Cha
p
ter 1

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Factory Preset Timing Table
Video Mode Resolution Horizontal
Frequency (KHz) Vertical Frequency (Hz)
640 x 480 31.469 59.940
640 x 480 37.500 75.000
VGA
640 x 480 37.861 72.809
800 x 600 35.156 56.250
800 x 600 37.879 60.317
SVGA
800 x 600 46.875 75.000
1024 x 768 48.363 60.004
1024 x 768 56.476 70.069
VESA
XGA
1024 x 768 60.023 75.029
IBM DOS 720 x 400 31.469 70.087
1024 x 768 48.870 60.001
MAC XGA
1024 x 768 60.241 74.927

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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
Flat Panel and
CCFL backlight
Main Board
Keyboard
RS232 Connector
For white balance
adjustment in
factory mode
HOST Computer
CCFL Drive
AC-IN
100V-240V Video signal, DDC
Power board
(Include: adapter, inverter board)
Audio board

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Main Board Block Diagram
For T560KVNHKGADAP model
For T560KVNHKGAGA model
EEPROM
AT24C16
(
U103
)
LCD Interface
(LVDS)
(CN104)
Scalar NT68521A-XFG (U102)
(Include MCU, ADC, OSD)
D-Sub Connector
(CN107)
EDID-EEPROM
M24C02
RXD
TXD RGB H-SYNC V-SYNC
DB15_SDA
DB15_SCL
OSD Control
Interface
(Keypad)
MCU (U101)
NT68F63L
X101
(
CRYSTAL 2MHz
)
EEPROM
M24C16
(
U403
)
Scalar NT68523EFG (U401)
(Include MCU, ADC, OSD)
D-Sub connector (CN404)
EDID-EEPROM
M24C02
RXD
TXD RGB H-SYNC
V
-SYNC
DB15_SDA
DB15_SCL
OSD Control
Interface
(Keypad)
MCU (U402)
NT68F633
X401
C
RY
S
TAL 12MHz
LCD Interface
(LVDS)
(CN101)

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Software Flow Chart
1
2
N
Y
5
Y
N
10
Y
N
12
Y
N
7
Y
N
6
4
3
8
9
14
11
13
Y
N
15
Y
N
16
17
19
Y
N
18

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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?

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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

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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

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Front Panel
1. Auto Adjust Key/Exit 4. MENU/ENTER
2. < /Volume 5. LED
3. > /Volume 6. Power Key

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Rear cover
Item Description
1. Power cord
2. Signal Cable
3. Audio Cable

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OperatingInstructions
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By
changing these settings, the picture can be adjusted to your personal preferences.
•The power cord should be connected.
•Connect the video cable from the monitor to the video card.
•Press the power button to turn on the monitor position. The power indicator will light up.
External Control Button
1. Auto Adjust Key/Exit 4. MENU/ENTER
2. < /Volume 5. LED
3. > /Volume 6. Power Key
Chapter 2

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Front Panel Controls
•Power Button:
Press this button to turn the monitor ON or OFF, and display the monitor’s state.
•Power Indicator:
Green —Power On mode.
Orange —Off mode.
NOTES
•MENU / ENTER:
Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD menu
when in Volume Adjust OSD status.
•</ Volume:
Activates the volume control when the OSD is OFF or navigate through adjustment icons when OSD is ON or adjust a
function when function is activated.
•>/ Volume:
Activates the volume control when the OSD is OFF or navigate through adjustment icons when OSD is ON or adjust a
function when function is activated.
•Auto Adjust button / Exit:
1. When OSD menu is in active status, this button will act as EXIT-KEY
(EXIT OSD menu).
2. When OSD menu is in off status, press this button for 2 seconds to activate the Auto Adjustment function.
The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus.
Notes
•Do not install the monitor in a location near heat sources such as radiators or air ducts, or in a place subject to direct
sunlight, or excessive dust or mechanical vibration or shock.
•Save the original shipping carton and packing materials, as they will come in handy if you ever have to ship your
monitor.
•For maximum protection, repackage your monitor as it was originally packed at the factory.
•To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stains may be removed with a cloth
lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or abrasive
cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor before cleaning it.

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OSD Menu
How to adjust a setting
1. Press the MENU- button to activate the OSD window.
2. Press <or >to select the desired function.
3. Press the MENU-button to select the function that you want to adjust.
4. Press < or >to change the settings of the current function.
5. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-4.
Adjusting the picture
Main OSD Menu:
a.Outline:
b. The description for control function:
Main Menu Icon Sub Menu Item Sub Menu Icon Description
Contrast
Adjusts the contrast between the foreground and
background of the screen image.
Brightness
Adjusts the background the screen image.
Focus
Adjust Picture Phase to reduce Horizontal-Line
noise
Clock
Adjust picture Clock to reduce Vertical-Line noise.
H. Position
Adjust the horizontal position of the picture.
V. Position
Adjust the vertical position of the picture.

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Warm N/A Recall Warm Color Temperature from EEPROM.
Cool N/A Recall Cool Color Temperature from EEPROM.
User / Red
User/Green
User / Blue
Adjusts Red/Green/Blue intensity.
English N/A
繁體中文 N/A
Deutsch N/A
Français N/A
Español N/A
Italiano N/A
简体中文 N/A
日本語 N/A
Multi-language Selection
H. Position
Adjust the horizontal position of the OSD.
V. Position
Adjust the vertical position of the OSD.
OSD Timeout
Adjust the OSD timeout.
(Analog-Only
Model)
Auto Config N/A
A
uto Adjust the H/V Position, Focus and Clock of
picture.
Information N/A
Show the resolution, H/V frequency and input port
of current input timing.
Reset N/A
Clear each old status of Auto-configuration and
set the color temperature to Cool.
Exit N/A
Save user adjustment and OSD disappear.