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AL2002 Service Guide - Page 1
...16 07. Schematics and Layouts 20
Appendixes: Appendix-1 Product Matrix Appendix-2 User s Manual Appendix-3 Quick Start Guide Appendix-4 Spare Parts List Packing Drawing 18 10. Color grayscale linearity 17 09. ACER_LCD_AL2002W_SM061206V0
LCD Color Monitor: T20BNUW-G1 Model Name: ACER AL2002W-Dual
Service Manual
Table of Contents Important Safety Notice 01 01. Electrica Related Information...
AL2002 Service Guide - Page 3
... CR=10
Optical Characteristics M201EW02 V1
Note: Per panel specification, over the life of the product, variation of parameters specified in panel specification shall be a 20" inch diagonal, WSXGA (1680 x 1050) resolution, TFT-LCD (Thin Film Transistor Liquid Crystal Display. The display...). Check supplier quality inspection criteria for the Liteon standard 20" wide flat panel monitor.
AL2002 Service Guide - Page 4
... acceptable provided the product complies with this specification.
3. The inverter block will contain an interface board, a Power / Inverter board, and a function key board. The interface block will provides the OSD control signal, power ON/OFF and LED indicator to interface board and LCD panel. 3
2.2 Test Equipment
Go to drive the LCD display circuit. The use of the monitor.
AL2002 Service Guide - Page 11
....5
64 80 65.3
Pixel Rate (MHz) 28.322 25.175 31.5 40 49.5 65 78.75 108 108 135 146.25
NOTE: (1)76Hz≦FV: monitor can be an integrated power supply.
Sync Polarity
H
V
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3.8. The LCD panel interface shall support the TFT standard.
3.9. AC inverter used by the DC -
AL2002 Service Guide - Page 13
... backlight assembly shall be a WSXGA resolution, 20" diagonal, TFT-LCD.
4.2. On. FLAT PANEL: 4.1. Panel Timings The controller included with all video timings from the CPU that may result in Panel specification into timings appropriate for the minimum expected life of the timings being sent from the edge of the light guide that the panel shall always be subjected to...
AL2002 Service Guide - Page 15
... from the LCD surface and
at least 30 minutes warm up. The brightness uniformity is the minimum separation number for the detail information.
5.
Brightness uniformity The uniformity is between spots of monitor after at 0 viewing angle.
5.1.1. The 9 test points are given as the right photo.
5.1.2. and 1500 lux. Note: Per panel specification, over the...
AL2002 Service Guide - Page 19
...
12
1 7749002220P0A
13 1 7740100200
DESCRIPTON CARTON EPS-R EPS-L
P.E. BAG P.E. BAG
TAPE TAPE WIRING TIES USER'S MANUAL LCD MONITOR STAND PE-BAG WIRING TIES
DRAW NO 8340004337
8340005384
8340002824 8440000038 8440004457 8440004216 8440000046
REMARK
LCD MONITOR SIGNAL CABLE 914M 25mm(W) 250x2.5mm
8440005039 8440000046
300x300x0.05mm 250x2.5mm 18 ACER AL2002W Go to cover page
9.
AL2002 Service Guide - Page 33
... tape
-
-
S5 Connect P802 cable to the Interface Board.
ACER AL2002W
MODEL:T20BNUW-G1(99)#U14(C)_ACER_AL2002W P/N :4092531143P
Station Tasks
Steps
Procedures
1 Bracket Chassis Base preparation S1 Take a Bracket Chassis Base on the Power Board. Torque:=9~10KGF.CM
Bracket Chassis Base
4
2
3
Screw Size=M3x6; LCD Panel and Bracket Chassis 7 module which is faced up...
AL2002 Service Guide - Page 35
... the LCD panel 9 module to release two connectors.
7110730082P0A SCREW_MACHINE_NONE_HEX WASHER HEAD_M3_8m
2 3
Screw Size=M3x8; S13
Use a cross-head screwdriver unscrewed the No.1~4 screws on the tip to insert into the seam between Rear Bezel and Front Bezel to unlock the Rear Bezel.
7742241350P0A RC_#6800_ABS 94HB_ACER_T20BNUW
1
- Torque=2.0~2.5KGF.CM 4
Aluminum Tape
- ACER AL2002W
ACER...
AL2002 Service Guide - Page 38
...
NG
damaged.
Check R105 or C102 whether to work properly. Check SW MCS (Q104/Q105) whether to be
damaged and repair them is not inverter board problem.
NG
Check R107, R118, C104, i101 and repair them if any .
OK Check pin13 of I101 is 5V
OK
Check if P101, P102, P103, and P104 are connected...
AL2002 Service Guide - Page 40
...PANEL ENABLE signal of the rectangle input Q302 pin2 at
TTL high level. Change the video cable. (VGA or DVI)
OK
NG Check OSM menu to
display on the host
NG
computer. 2.
I301 is failure L336 is green.)
Is backlight lit? Failure Point:
1.
4 ACER AL2002W Go to cover page
Appendix 4: Troubleshooting...between the Interface Board and LCD
Module. Check if the LCD module signal cable...
AL2002 Service Guide - Page 44
8 ACER AL2002W Go to cover page
Abnormal OSM display adjust problem
Appendix 4: Troubleshooting
Check the input TTL level whether to press button,
the level will be changed.)
Failure Point...when to change when press the function keys on I306 pin114
and pin115. Function key board is defected.
3. Function key wire is short.
4. R368 C382 R369 C383 C387,C388,C391 or
C392 is disconnected. 2.
AL2002 User's Guide - Page 2
... ...2 Unpacking ...3 Attaching/Removing the Base 4 Screen position adjustment 4 Connecting the power cord 5 Safety precaution 5 Cleaning your monitor 5 Preset modes ...6 Power saving ...7 DDC ...7 Installation...8 User controls ...9 Front panel controls 9 Basic section of a OSD screen 10 Standard OSD operation 11 OSD function description 11 Troubleshooting 13 Specification ...15
For more...
AL2002 User's Guide - Page 4
... Macintosh II family signals. E-2 The AL2002W monitor provides flicker-free and color images at the precision-of a fixed frequency. · The resident memory allows for storing factory default settings and also additional user adjustment parameters. · The maximum resolution achievable is able to properly function even in case of upgrade video cards or
software because...
AL2002 User's Guide - Page 17
... size,Fine, Left/Right, Down/Up, Auto Adjust will bedisabled. SPECIFICATION
LCD Display Display Type Display Area (W x H) Contrast Ratio Viewing Angle Power Input Voltage Frequency Current Rating Operational Features Display Colors Resolution Brightness Response Time Interface Input Connector Users Controls Front Panel Controls
AL2002W
20" TFT LCD 433.4 x 270.9 mm 800:1 (Typ.) 160oH 160oV (CR=10...
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