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Acer AL1951 Service Guide
1
Service Guide Version and Revision
Version A00 Release Date Nov-23-2005 Revision History Initial Release TPV model T980KSNHCGZPAP
2
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.
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.
Trademarks
Acer is a registered trademark of Acer Incorporated. All other trademarks are property of their respective owners.
Conventions
The following conventions are used in this manual: Screen messages Note Warning Caution Important Denotes actual messages that appear on screen. Gives bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from doing or not doing specific actions. Gives precautionary measures to avoid possible hardware or software problems. Remind you to do specific actions relevant to the accomplishment of procedures.
3
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. Dangerous high voltages are present inside the monitor. Do not open the cabinet. Refer servicing to qualified personnel only.
4
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. 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, uses a mounting kit approved by the manufacturer and follow the kit instructions. 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. 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. 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 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.
5
Table Of Contents
Chapter 1 Monitor Features Introduction Electrical Requirements LCD Monitor General Specification LCD Panel Specification Support Timing Block Diagram Main Board Diagram Software Flow chart Main Board Layout Front Bezel Rear Bezel Chapter 2 Operating Instructions External Controls Front Panel Controls Adjusting the picture Hot-Key Menu OSD Message LOGO Chapter 3 Machine Disassembly ................................................ ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. 6 7 8 9 10 11 12 12 14 16 17 18 19 19 20 21 24 24 25 26
Chapter 4 Chapter 5
Troubleshooting Connector Information
............................................. .............................................
31 37
Chapter 6
FRU (Field Replacement Unit) List Exploded Diagram
............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. ............................................. .............................................
38 39 42 42 43 44 45 46 47 48 49
Chapter 7
Schematic Diagram Analog Input Scaler (NT68F633) Panel Output Scaler Power DVI Input Keypad Audio Board Power board (adapter + inverter)
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Monitor Features
Introduction
Scope
Chapter 1
This specification defines the requirements for the 19" MICROPROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector and 24-pin DVI connector, also supports VESA DPMS power management and plug & play function. There is a build-in stereo audio amplifier with OSD control to drive a pair of speakers.
Description
The LCD monitor is designed with the latest LCD technology to provide a performance oriented product with no radiation. This will alleviate the growing health concerns. It is also a space saving design, allowing more desktop space, and comparing to the traditional CRT monitor, it consumes less power and gets less weight in addition MTBF target is 50k hours or more.
Chart of AL1951
Panel Signal Interface Sync Type Color Temp User Adjust DDC Speaker Headphone Jack Microphone Jack USB Hub Tilt / Swivel 750GLS90X05 (LTM190EX-L05) D-Sub 15-pin DVI 24-pin Separate / Compatible Support DDC2B 1.5W + 1.5W (Rated power) 3.5mm stereo phone jack, green color No Not support Yes / No
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Electrical Requirements
Standard Test Conditions
All tests shall be performed under the following conditions, unless otherwise specified. Ambient light Viewing distance Warm up time All specifications Fully functional Measuring equipment : : : 30 minutes 5 seconds Chroma 7120 signal generator or equivalent, directly Connected to the monitor under test. Minolta CA100 photometer, or equivalent Control settings User brightness control User contrast control : : Set to Factory preset value (cut off raster) T Set to factory preset value, which allows that the brightest two of 32 linear distributed gray-scales (0 700mv) can be distinguished. User red/white balance, Green/white balance and Blue/white balance control Power input Ambient temperature Analog input mode : : : : In the center (unless otherwise specified) 230V± 5 20+5 1280x1024, 60 Hz, all white : : Dark room 40 cm for LCD performance, 20 cm for LCD failures
Measurement systems
The units of measure stated in this document are listed below: 1 gamma = 1 nano tesla 1 tesla = 10,000 gauss cm = in x 2.54 Lb = kg x 2.2 Degrees F = [°C x 1.8] + 32 Degrees C = [°F - 32]/1.8 u' = 4x/(-2x + 12y + 3) v' = 9y/(-2x + 12y + 3) x = (27u'/4)/[(9u'/2) - 12v' + 9] y = (3v')/[(9u'/2) - 12v' + 9] nits = cd/(m2) = Ft-L x 3.426 lux = foot-candle x 10.76
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LCD Monitor General Specification
Panel type 19 " active matrix color TFT LCD 750GLS90X05 (SEC LTM190EX-L05) Display size Display mode 376.32mm (H) × 301.056mm(V) VGA : 640 × 480 (60/72/75 Hz) SVGA :800 × 600 (56/60/72/75 Hz) XGA : 1024 × 768 (60/70/75 Hz) SXGA : 1280 × 1024 (60/75 Hz) Pixel pitch Display dot Pixel clock Contrast ratio Brightness Response time (Tr +Tf) Display color Viewing angle (CR10) Pc interface 0.294mm(H) × 0.294mm(V) 1280 x (RGB) ×1024 140 MHz (Max) 700:1 (type) 400 cd/m2 (type) 8ms (type) 16.7M H: 150 / V: 135 (type) RGB Analog Interface Digital interface Signal connector D-Sub 15pin DVI-D 24pin Interface frequency Horizontal Frequency 30KHz ----83KHz Vertical Frequency Plug & play Power Input voltage Total output power 55Hz ------75Hz
VESA DDC2B, VESA DPMS 50 ± 3Hz, 60 ± 3Hz, 100 VAC to 240VAC 45 Watt max.
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LCD Panel Specification
LCD Panel Model (SEC LTM190EX-L05)
Display Type Resolution Display Dot Display Area Pixel Pitch Display Color Lamp Frequency Lamp Current Weight active matrix color TFT LCD 1280x1024 pixels 1280x (RGB) x 1024 376.32mm(H) x 301.056mm(V) 0.294mm(H) x 0.294mm(V) 16.7M (true) 80kHz(Max.) 7.5 mArms (typ) 2250g (Max.)
Optical Specifications
IL = 7.5mArms Ta = 25 ± 2°C VDD = 5V FV = 60Hz FDCLK = 54MHz
ITEM Contrast Ratio (Center of screen) Response Time at Ta Rising Falling
Symbol CR TR TF YL
Condition
MIN. 450 350
TYP. 700 1.7 6.3 400 0.640 0.329 0.300 0.600 0.150 0.060 0.313 0.329 75 75 75 60 -
MAX. 3 9 0.670 0.359 0.330 0.630 0.180 0.090 0.343 0.359 25
UNIT
msec Cd/m2
Luminance of white (Center of screen) Red Color Chromaticity (CIE 1931) Blue White Hori. Viewing Angle Vert. Brightness Uniformity (9 points) Green
=0, =0 RX RY GX GY BX BY WX WY L R H L Buni CR10 Normal Viewing Angle 0.610 0.299 0.270 0.570 0.120 0.030 0.283 0.299 65 65 65 50 -
Degrees
%
10
Supported Timing
VESA MODES Horizontal Nominal Mode Resolution Total Frequency +/- 0.5kHz 31.469 37.861 37.500 35.156 37.879 48.077 46.875 48.363 56.476 60.023 67.5 63.981 79.976 IBM MODES Horizontal DOS DOS XGA VGA SVGA XGA 720x400@70Hz 640x350@70Hz 1024x768@72Hz 640x480@67Hz 832x624@75Hz 1024x768@60Hz 1024x768@75Hz 900 x 449 800 x 449 1304 x 798 864x525 1152x667 1312x813 1328x804 31.469 31.469 57.515 MAC MODES 35.000 49.725 48.780 60.241 N N N N 66.667 74.551 60.001 74.927 N N N N 30.240 57.2832 64.000 80.000 N P P Vertical 70.087 70.087 72.1 P N P 28.322 25.175 75.000 N N N N/P P P P N N P P P P Sync Polarity Vertical Nominal Freq. +/- 1 Hz 59.940 72.809 75.00 56.250 60.317 72.188 75.000 60.004 70.069 75.029 75 60.020 75.025 N N N N/P P P P N N P P P P Sync Polarity Nominal Pixel Clock (MHz) 640x480@60Hz VGA 640x480@72Hz 640x480@75Hz 800x600@56Hz SVGA 800x600@60Hz 800x600@72Hz 800x600@75Hz 1024x768@60Hz XGA 1024x768@70Hz 1024x768@75Hz 1152x864@75Hz SXGA 1280x1024@60Hz 1280x1024@75Hz 800 x 525 832 x 520 840 x 500 1024 x 625 1056 x 628 1040 x 666 1056x625 1344x806 1328x806 1312x800 1600X900 1688x1066 1688x1066 25.175 31.500 31.500 36.000 40.000 50.000 49.500 65.000 75.000 78.750 108.000 108.000 135.000
Support Modes
There will be 20 total support modes to accommodate the above mode and other video modes within the frequency range of the monitor.
85Hz refresh rate Support
Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should display " Out of Range" warning menu at this mode.
11
Monitor Block Diagram
The LCD MONITOR will contain a main board, a power board, keypad board and audio board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel.
CCFL Drive.
Flat Panel and CCFL backlight
Power Board (Include: Adapter and Inverter board)
Main Board
RS232 Connector For white balance adjustment in factory mode
Audio board
Keyboard
AC-IN 100V-240V
Host Computer
Video signal, DDC
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Main Board Diagram
LCD Interface (CN101) (LVDS)
OSD Control Interface (Keypad) NT68663-64EFG (U401) (Include MCU, ADC, OSD)
EPR_SDA EPR_SCL RXD TXD RGB H-SYNC V-SYNC RXD TXD RGB H-SYNC V-SYNC
EEPROM (U403) M24C16-MN6TP
Crystal (X401) 12MHz
D-Sub Connector (CN404) DB15_SDA DB15_SCL EDID-EEPROM (U404) M24C02-WMN6TP
DVI Connector (CN405)
DB15_SDA DB15_SCL EDID-EEPROM (U405) M24C02-WMN6TP
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Software Flow Chart
1
Y 2 N 3
4
5 Y 6
N
7 Y 9
N 8
10 Y N 12 Y 14
N
11
13 Y 15 Y 17
N
N 16
18
N
19 Y
14
Remark:
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?
15
Main Board Layout
Symbol U401
Description NT68663-64EFG CRYSTAL 12MHz HC-49US A TDA7496 M24C16-MN6TP M24C02-WMN6TP M24C02-WMN6TP S1-8050SD AIC1084-33PM 16
Symbol CN101 CN404 CN405 CN601 CN602 CN603 CN701 CN702 D-SUB 15PIN
Description PIN HEADER 24P 2.0mm DVI CONNECTOR 24PIN WAFER 4P RIGHT ANGLE PHONE JACK 5PIN PHONE JACK 5PIN DC JACK 3PIN WAFER 6P RIGHT ANGLE PI
X401
U601 U403 U404 U405 U701 U702
Front Bezel
EXTERNAL CONTROLS
Item 1. 2. 3. >/ Volume
Description
Item 4. 5.
Description MENU/ENTER Auto Adjust Key/Exit
LED/Power Key
17
Rear Bezel
Item 1. 2. 3.
Description D-SUB Cable DC-Jack Power Cable AC Power Cord
Item 4. 5. 6. DVI Cable
Description External Adapter Audio Cable
18
Operating Instructions
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.
Chapter 2
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the
External Controls
Item 1. 2. 3. >/ Volume
Description
Item 4. 5.
Description MENU/ENTER Auto Adjust Key/Exit
LED/Power Key
19
Front Panel Control
· Power Button: Press this button to turn the monitor ON or OFF. · 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 navigates through adjustment icons when OSD is ON or adjusts 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. · Power Indicator: Blue -- Power On mode. Orange -- Off mode NOTES
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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Adjusting the Picture
How to Adjust a Setting
1. Press the MENU-button to activate the OSD window. 2. Press 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.
Analog Input Only model
Dual-input modelwhen Analog Input Only
21
Dual-input modelwhen Digital Input Only
22
b. The Description For Control Function
23
24
Hot-Key Menu
a. Outline
b. The Description For Hot-Key Function
Item Operation When the OSD is closed, press Left or Volume Right button will be Volume Hot-Key Function Icon Description Volume of Audio adjustment. The Audio will be Mute when volume=0
OSD Message
a. Outline
b. The Description For OSD Message
Item Auto Config Please Wait Input Not Supported Cable Not Connected No Signal Description When Analog signal input, if User Press Hot-Key "Auto", will show this message, and the monitor do the auto config function. When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this message. This message will be flying. Analog-Only Model: When the video cable is not connected, will show this message. This message will be flying. Analog-Only Model: When the video cable is connected, but there is no active signal input, will show this message, then enter power saving.
25
Logo
When the monitor is power on, the LOGO will be showed in the center, and disappear slowly.
How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities. The DDC2B is a bi-directional data channel based on the I²C protocol. The host can request EDID information over the DDC2B channel. This monitor will appear to be non-functional if there is no video input signal. In order for this monitor to operate properly, there must be a video input signal. This monitor meets the Green monitor standards as set by the Video Electronics Standards Association (VESA) and/or the United States Environmental Protection Agency (EPA) and The Swedish Confederation Employees (NUTEK). This feature is designed to conserve electrical energy by reducing power consumption when there is no video-input signal present. When there is no video input signals this monitor, following a time-out period, will automatically switch to an OFF mode. This reduces the monitor's internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a "Screen Saver" feature except the display is completely off. Pressing a key on the keyboard, or clicking the mouse restores the display. Using The Right Power Cord The accessory power cord for the Northern American region is the wallet plug with NEMA 5-15 style and is UL listed and CSA labeled. The voltage rating for the power cord shall be 125 volts AC. Supplied with units intended for connection to power outlet of personal computer: Please use a cord set consisting of a minimum No. 18 AWG, type SJT or SVT three conductors flexible cord. One end terminates with a grounding type attachment plug, rated 10A, 250V, and CEE-22 male configuration. The other end terminates with a molded-on type connector body, rated 10A, 250V, having standard CEE-22 female configuration. Please note that power supply cord needs to use VDE 0602, 0625, 0821 approval power cord in European counties.
26
Machine Disassembly
Chapter 3
This chapter contains step-by-step procedures on how to assemble the monitor for maintenance.
Disassembly Procedure
1. Remove two screws to release back cover. (Fig 1) 2. Remove connector wire with base and panel, base and inverter. (Fig 2)
Fig 1
Fig 2
27
3. Remove the base stand. (Fig 3) 4. Remove four screws to release front bezel. (Fig 4)
Fig 3
Fig 4
28
5. Remove the hinge cap. (Fig 5) 6. Remove eleven screws to release top cover and bottom cover. (Fig 6)
Fig 5
Fig 6
29
7. Remove the main board. (Fig 7) 8. Remove six clamps to release shield and the main board. (Fig 8)
Fig 7
Fig 8
30
9. Remove the main frame. (Fig 9) 10.Remove the inverter board. (Fig 10)
Fig 9
Fig 10
31
Troubleshooting
This chapter provides troubleshooting information for the AL1951:
1. No Power
Chapter 4
No power
Press power key and look if the picture is normal NG Please reinsert and make sure the AC of 100-240 is normal NG Reinsert or check the power section
OK
Measure LP701 Pin3/6=12V? U701 Pin2=5V? OK NG Check power section
X401 oscillate waveforms are normal NG OK Replace X401
Replace U401
32
2. No Picture
No picture
Measure U702 PIN2=3.3V U703 PIN2=1.8V
OK
NG
Replace U702, U703
X401 oscillate waveforms are normal
OK
NG
Replace X401
Check if the sync signal from computer is output and video cable is connected normally
NG OK Replace U401
Input the sync signal of computer, or change the cable
33
3. White screen
White screen
Measure Q702 base is high level?
NG
X401 oscillate waveform is normal
OK Check Q702, Q701 is broken or CN101 solder?
OK
NG
Replace X401
Check reset circuit of U401 is normal
Check Correspondent component.
NG OK OK
NG
Check Correspondent component.
Replace U401
Replace Panel
34
4. Keypad Board
35
5. Inverter Board
No Backlight
36
6. No Audio
37
Connector Information
The following figure shows the connector locations on the monitor:
Chapter 5
1 6 11
5 10 15
15 Pin Color Display Signal Cable (D-sub) Pin No. 1. 2. 3. 4. 5. 6. 7. 8. Red Green Blue Monitor Ground DDC-Return R-Ground G-Ground B-Ground Description Pin No. 9. 10. 11. 12. 13. 14. 15. +5V Logic Ground Monitor Ground DDC-Serial Data H-Sync V-Sync DDC-Serial Clock Description
24 Pin Color Display Signal Cable (DVI) Pin No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Description TMDS Data2TMDS Data2+ TMDS Data 2/4 Shield TMDS Data4TMDS Data4+ DDC Clock DDC Data Analogue Vertical Sync TMDS Data1TMDS Data1+ TMDS Data 1/3 Shield TMDS Data3Pin No. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. Description TMDS Data3+ +5V Power Ground Hot Plug Detect TMDS Data0TMDS Data0+ TMDS Data 0/5 Shield TMDS Data5TMDS Data5+ DDC Clock Shield DDC Clock+ DDC Clock-
38
FRU (Field Replaceable Unit) List
chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization).
Chapter 6
This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL1951.Refer to this
NOTE: Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel (http://aicsl.acer.com.tw/spl/). For whatever reasons 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 from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines. NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it.
39
Exploded Diagram (Model: AL1951)
40
Part List
Above picture show the description of the following component. Item Picture Description
1
Hinge Cover
2
Bezel
3
Back Cover
4
Shield
5
Main Frame
41
6
Panel
7
Power Board
8
Main Board
9
Speakers
42
Schematic Diagram
Main Board
Analog Input
VGA-5V ADC_VAA C401 0.1uF/25V 1 2
Chapter 7
R402 220£[ 1/16W VGA-SCL VS ZD402 UDZS5.6B HS
15 14 13 12 11 17
GND_A R405 220£[ 1/16W VGA-SDA
CN404 DB15 10 5 9 4 8 3 B1 7 2 G1 6 1 R1
R401 10K£[ 1/16W R403 1K£[ 1/16W VGA-DET
16
GND_A
D401 BAV99 1 FB401 2 30 OHM
B1 ZD403 UDZS5.6B GND_A ZD409 UDZS5.6B
3
BI1
R404 75£[ 1/16W
CH201209T-300
1 FB402 2 30 OHM BI1-
DB15
GND_A
GND_A M_TXD M_RXD ADC_VAA C402 0.1uF/25V 1 2 D415 BAV99 1 FB403 2 30 OHM GI1 3 C403 & C404:NC->0.1u
GND_A
ZD404 UDZS5.6B
ZD405 UDZS5.6B
ZD406 UDZS5.6B
GND_A
C403 C404 NC/0.1uF/25V NC/0.1uF/25V
GND_A
G1 GND_A GND_A R406 75£[ 1/16W
CH201209T-300
1 FB404 2 30 OHM GI1-
HS VGA-5V ZD411 UDZS5.6B
R478 200£[ 1/16W HSIN
GND_A C405 0.1uF/25V ADC_VAA
1
+5V GND_A U404 AT24C02 1 2 3 4 A0 VCC A1 WP A2 SCLK GND SDA 8 7 6 5 C450 0.1uF/25V GND_AGND_A D427 BAV70 R483 R484 4.7K£[ 1/16W 4.7K£[ 1/16W VS 24C02_WP ZD410 UDZS5.6B R480 2.2K£[ 1/16W C406 0.001uF GND_A
GND_A
2 D402 BAV99 1 FB405 2 30 OHM RI1 3
R481 2.2K£[ 1/16W
C407 22pF
R1 R479 200£[ 1/16W VSIN GND_A R409 75£[ 1/16W
CH201209T-300
1 FB406 2 30 OHM RI1-
24C02_WP VGA-SCL VGA-SDA
GND_A GND_AGND_A GND_A
Title Size A4 Date: Document Number
715G1470-E NOV
ADC Input
Sheet 3 of 5
Rev 0.1
Wednesday, October 26, 2005
43
Scaler (NT68F633)
VSO HSO SCL SDA RSTn IRQn RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCADC_VAA CVDD1V8 RX2+ RX2RX1+ RX1RX0+ RX0RXC+ RXCT0M T0P T1M T1P T2M T2P TCLK1M TCLK1P T3M T3P T4M T4P T5M T5P T6M T6P TCLK2M TCLK2P T7M T7P
3V3
CVDD1V8
DVDD
112
120
14
89
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66 T6M
GPO6
GPO1
RX1+
RX2+
RX1-
RX2-
SDA
SCL
T0P
T1P
T4P
T5P
T2P
GPO3/AD1
GPO2/AD0
TCLK1P
AGND
AGND
AVCC
T0M
T1M
T2M
T3P
T4M
CGND
DGND
T3M
INT_HSO/GPO5
INT_VSO/GPO4
TCLK1M
DGND
IRQN
RSTN
CVDD
DVDD
T5M
T6P
C434 C435 0.1uF/25V 0.1uF/25V GND_A DVDD
C421 C422 0.1uF/25V 0.1uF/25V GND_A 103 3V3 104 108 105 106 RX0+ RX0AGND RXC+ RXCAVCC REXT PVCC PGND ADC_VAA BIN1+ BIN1SOGI1 GIN1+ GIN1RIN1+ RIN1ADC_VAA ADC_GNDA BIN0+ BIN0SOGI0 GIN0+ GIN0-
65
MCU-VDD TCLK2M TCLK2P T7M T7P P35/T1 P34/T0 PB3/ADC3/INTE1 PB2/ADC2/INTE0 P31/TXD PD6 P30/RXD RSTB 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 R467 NC/0£[ 1/16W GND_A LCD-ON BL_EN +5V LED_O LED_B C441 0.1uF/25V + C438 47uF/16V BAT54C 3 BL-PWM VOL-PWM STANDBY1 C443 0.1uF/25V RX R430 GND_A 100K£[ 1/16W TX MCU-VDD 5V-DETECT IRQN R444 3.3K£[ 1/16W R443 3.3K£[ 1/16W SDA SCL +5V R435 10K£[ 1/16W
15
82 99
C417 0.1uF/25V
C418 0.1uF/25V
107 C419 C420 0.1uF/25V 0.1uF/25V GND_A MCU-VDD 3V3 R420 390£[ 1/16W 2 FB408 1 30 OHM 110 C433 0.1uF/25V 108 109 110 111 112 113 GND_A C446 0.1uF/25V GND_A 114 115 116 117 118 119 ADC_VAA 120 121 BI1 BI1R422 R423 R424 GI1 GI1RI1 RI1R425 R426 R427 R428 75£[ 1/16W 150£[ 1/16W 390£[ 1/16W 75£[ 1/16W 150£[ 1/16W 75£[ 1/16W 150£[ 1/16W C426 C427 C428 C429 C430 C431 C432 0.047uF 0.047uF 0.001uF 0.047uF G+ 0.047uF 0.047uF 0.047uF R+ B+ 122 123 124 125 126 127 128
GND_A
R437 15K£[ 1/16W
1 2 3 4
A0 A1 A2 VSS
VCC WP SCK SI
8 7 6 5
24C16_WP SCL SDA
GND_A
U403 M24C16-MN6T
U401 NT68663
PA7/PWM9* PA6/PWM8* PA5/PWM7* PA4/PWM6* PA3/PWM5 PA2/PWM4 PA1/PWM3 PA0/PWM2 PD0 MCU_VCC PC0* PC1*
GND_A D416 2 MCU-VDD 3 2 1
+5V
1 D417 BAV99 24C02_WP BL-ON MUTE 2 C453 100pF EMI Solution
TOUTP/VSYNCI1
PB5/DDC_SDA0*
RIN0HSYNCI1
PB7/DDC_SDA1*
PB4/DDC_SCL0*
PB6/DDC_SCL1*
RIN0+
PC2 PC3/PWM0 PC4/PWM1
DPLL_GND
DPLL_VDD
MCU_GND
PB0/ADC0
PB1/ADC1
VSYNCI0
R442 & R446:# ->10K
R482 10K£[ 1/16W R441 10K£[ 1/16W R442 10K£[ 1/16W
TS_CLK
HYNCI0
PWM10
PWM11
CGND
DGND
OSCO
CVDD
DVDD
VREF
TCLK
TEST
OSCI
PD5
PD4
PD3
PD2
PD1
PC7
PC6 36
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
37
PC5
PE0
PE1
NC
NC
38
1
2
3
4
5
6
7
8
9
VSO HSO DVDD C424 0.1uF/25V HSIN GND_A VSIN GND_A CVDD1V8 RSTn DVI-DET R460 150£[ 1/16W 2 FB407 1 600 OHM 9 + C436 C437 0.1uF/25V 100uF/16V C442 22pF AUTO ENTER POWER R429 1M£[ 1/16W X401 12MHz C440 22pF GND_A C439 22pF GND_A +5V R440 R439 24C16_WP R431 4.7K£[ 1/16W R432 4.7K£[ 1/16W R433 4.7K£[ 1/16W R434 4.7K£[ 1/16W VGA-DET MCU-VDD C452 100pF
R468 100£[ 1/16W 1 FB410
120 OHM
GND_A DVI-SDA DVI-SCL
+1V8
100£[ 1/16W 100£[ 1/16W R438 R436 100£[ 1/16W 100£[ 1/16W
FB401:1K change to 600ohm
VGA-SDA VGA-SCL +5V
LEFT RIGHT 1 2 STANDBY 120 OHM C455 100pF STANDBY BL-ON Q401 NC/PMBS3904 R461 NC/10K£[ 1/16W
GND_A
R449:15K ->10K
M_TXD M_RXD R450 100£[ 1/16W +5V 1 2 3 4 GND_A CN403 SCL SDA 1 2 3 CN402
C454 100pF
FB411
R445 1K£[ 1/16W STANDBY1 VOL-PWM
R448 R446 1K£[ 1/16W 10K£[ 1/16W
BL_EN R462 NC/4.7K£[ 1/16W
TX RX
GND_A
R451 100£[ 1/16W NC/CONN NC/CONN
R449 10K£[ 1/16W R447 4.7K£[ 1/16W C444 0.1uF/25V GND_A BL-BRIGHT C456 100pF
1 FB412
2 120 OHM C457 100pF
VOLUME
BL-PWM
GND_A
TO RS232
TODEBUG
GND_A
C445 1uF/25V GND_A
Title GND_A EMI Solution Size C Date:
715G1470 E NOV
Document Number SCALER Sheet 4 of 5 Rev 0.1
Wednesday, October 26, 2005
44
Panel Output
LVDS OUTPUT
T0P T0M T1P T1M T2P T2M TCLK1P TCLK1M T3P T3M T4P T4M T5P T5M T6P T6M TCLK2P TCLK2M T7P T7M T0M T1M T2M TCLK1M T3M T4M T5M T6M TCLK2M T7M LCD-VDD 1 3 5 7 9 11 13 15 17 19 21 23
CN101 2 4 6 8 10 12 14 16 18 20 22 24 T0P T1P T2P TCLK1P T3P T4P T5P T6P TCLK2P T7P LCD-VDD
GND_A
CONN
GND_A
Title Size A4 Date: Document Number
715G1470 E NOV
PANEL OUTPUT
Wednesday, October 26, 2005 Sheet 2 of 5 Rev 0.1
45
Scaler Power
D702 SS14 +5V 1/A 2/C U702 APL1084-3.3 3 IN GND 3V3 OUT 2 4 + C726 0.1uF/25V C722 220uF/16V 1 FB606 2 ADC_VAA 30 OHM 1 FB605 2 DVDD 30 OHM
CN701 POWER JACK 1 +12V_IN 6 5 2 4
LP701 3 2 1
+12V 1
VIN GND /ON
FBK Vout
4 2 L701 NC/L701A + + C717 C713 C719 220uF/16V 220uF/16V 0.1uF/25V
GND_A
+ INDUTOR-P GND_A C714 0.001uF
C723 C708 C712 C720 220uF/16V 220uF/16V 0.1uF/25V 0.1uF/25V
+
FOR 3.3V POWER USE
3V3 U703 APL1117-1.8 3 + C704 0.1uF/25V IN GND 2 4 + C718 0.1uF/25V C710 220uF/16V +1V8 1 FB703 2 30 OHM
5
3
C711 0.1uF/25V
R706 NC
D703 SMB340
1
U701 SI-8050SD
+5V + C707 C709 0.1uF/25V 100uF/16V
SHIED
OUT
CVDD1V8
GND_A
C725 100uF/16V
SHIED
GND_A +5V 1 FB701 2 30 OHM
3V3
1 2 FB702 NC/30 OHM R701 47K£[ 1/16W R703 22K£[ 1/16W
FOR 1.8V POWER USE
C716 0.1uF/25V
+12V
FB707 1
600 OHM 2 1 2 3 4 5 6 CN702
R704 10K£[ 1/16W LCD-ON
Q701 AO3401L Q702 PMBS3904 C703 0.1uF/25V +
LCD-VDD
C721 100uF/16V
+
C701 0.1uF/25V
R702 47K£[ 1/16W
C705 0.1uF/25V
GND_A
C724 47uF/16V
C706 0.1uF/25V
R705 10K£[ 1/16W
GND_A BL-ON
GND_A
GND_A
GND_A GND_A
BL-BRIGHT
GND_A
CONN
C702 220pF
C715 220pF
TO INVERTER
GND_A
Title Size A3 Date:
1
715G1470 E NOV
Document Number
Scaler Power
Wednesday, October 26, 2005 Sheet 1 of 5
Rev 0.1
46
DVI Input
DVI-SCL DVI-SDA CN202 DVI-I-Female SHELL1 AR AG AB AHS AGND NC A VS TX2TX2+ TX2/4 Shld TX4TX4+ DDC CLK DDC DATA TX1TX1+ TX1/3 Shld TX3TX3+ +5V GND HP Detect TX0TX0+ TX0/5 Shld TX5TX5+ TXC Shld TXC+ TXCSHELL2 D403 UDZS5.6B D404 UDZS5.6B
31
C1 C2 C3 C4 C5 C6 8 1 2 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
GND_A R410 R411
GND_A 0£[ 1/16W 0£[ 1/16W RX2RX2+
DVI-SCL DVI-SDA R412 R413 DVI-5V R414 1K£[ 1/16W D405 UDZS5.6B 0£[ 1/16W 0£[ 1/16W RX1RX1+
R415 1K£[ 1/16W R416 R417 0£[ 1/16W 0£[ 1/16W
DVI-DET RX0RX0+
GND_A
32 GND_A
R418 R419
0£[ 1/16W 0£[ 1/16W
RXC+ RXC-
3
3
3
3
3
3
3
GND_A
DVI Input
D406 UDZS5.6B
D407 BAV99
D408 BAV99
D409 BAV99
D410 BAV99
D411 BAV99
D412 BAV99
D413 BAV99
3
D414 BAV99
GND_A D428 BAV70 DVI-5V
ADC_VAA
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
C409 0.1uF/25V
C410 0.1uF/25V
C411 0.1uF/25V
C412 0.1uF/25V
C413 0.1uF/25V
C414 0.1uF/25V
C415 0.1uF/25V
C416 0.1uF/25V GND_A
+5V C451 0.1uF/25V GND_A U405 AT24C02 1 2 3 4 A0 VCC A1 WP A2 SCLK GND SDA 8 7 6 5 R485 R486 4.7K£[ 1/16W 4.7K£[ 1/16W 24C02_WP DVI-SCL DVI-SDA
24C02_WP
GND_A
Title Size A4 Date:
715G1470 E NOV
Document Number
1
DVI Input
Wednesday, October 26, 2005 Sheet 5 of 5
Rev 0.1
47
Keypad
ENTER RIGHT AUTO LEFT POWER R473 R474 R477 R476 R475 470£[ 1/16W 470£[ 1/16W 470£[ 1/16W 470£[ 1/16W 470£[ 1/16W KEY_MENU KEY_RIGHT KEY_AUTO KEY_LEFT KEY_ONOFF
3
3
3
3
D425 BAV99
D420 BAV99
D424 BAV99
D426 BAV99
3
D421 BAV99 MCU-VDD
SW401 SW
SW402 SW
SW403 SW
SW404 SW
SW405
2
1
2
1
2
1
2
1
2
0.001uF
0.001uF
0.001uF
0.001uF
0.001uF
1
C448
C481
C447
C449
C480
SW
GND_A GND_A
MCU-VDD
MCU-VDD
R469 120£[ 1/16W R471 LED_B 4.7K£[ 1/16W
R470 120£[ 1/16W R472 4.7K£[ 1/16W LED_O
Q402 PMBS3906 1 2 LED_GRN
Q403 PMBS3906 LED_ORANGE DP1 3 LED 3 2 GND_A D423 BAV99
3 MCU-VDD 2
D422 BAV99
C483 0.001uF
1
C482 0.001uF
1
Title Size A4 Date:
715G1470 E NOV
Document Number
KEYPAD
Wednesday, October 26, 2005 Sheet 6 of 7
Rev 0.1
48
Audio Board
Audio ripple issue Audio ripple issue +12V 1 FB609 2 600 OHM FB601 100uH + C601 220uF/16V U601 TDA7496L + C602 220uF/16V + C620 220uF/16V + C621 220uF/16V
C603 0.1uF/25V
EMI Solution
16
FB603 120 OHM CN602 4 3 2 1 5 PHONEJACK R601 18K£[ 1/16W R602 18K£[ 1/16W 1 2
C604 & C606:0.47u->0.22u C604 0.47uF/16V 4 9 C606 0.47uF/16V 6 11 12
15
8
FB607 120 OHM 1 2 OUT_L
VS
NC
VS
FB604 120 OHM 1 2
INL INR VOLUME STBY MUTE
OUTL OUTR SVR VAROUT_R VAROUT_L
17 14 10 7 5 R603 1K£[ 1/16W
C605 C607
220uF/16V 220uF/16V
FB608 120 OHM 1 2 OUT_R
+
+
STANDBY MUTE
C615 100pF
C614 100pF
C616 100pF
C617 100pF
GND GND GND GND GND GND GND
+ C608 220uF/16V
R604 1K£[ 1/16W
C609 1uF/25V C612 100pF
C610 1uF/25V
1 2 3 13 18 19 20
R605 20K£[ 1/16W
R606 20K£[ 1/16W
EMI Solution
C611 100pF
VOLUME
C613 0.1uF/25V CN603 CN601 1 5 4 3 2 7 8 2 1 2 3 4
R608 R609
75£[ 1/16W 75£[ 1/16W
OUT_R OUT_L
GND_A
PHONE JACK
FB602 120 OHM
CONN
1
EMI Solution
Title Size A4 Date: Document Number
715G1470 E NOV
AUDIO
Sheet 6 of 7 Rev 0.1 Wednesday, November 02, 2005
49
Power board (adapter + inverter)
50
CN801 VIN VIN ON/OFF DIM GND GND 1
F801 4A/24V CN802 R802 10K£[ 1/10W 2 C845 220uF/16V C848 220uF/25V R801 1K£[ 1/16W + ZD801 RLZTE-11 5.6B 1 Q801 SP8M3 4 3 2 1 G2P D2P S2P D2P G1N D1N S1N D1N 5 6 7 8 C807 2.2uF/25V C808 2.2uF/25V 1 10 C809 22pF/3KV 5 6 7 8 2 D803 BAV99 1 3 R806 6.2M£[ 1/2W C806 5.6pF/3KV CN803 1 C804 2.2uF/25V T801 80LL17T-16-LC 6 7 C805 22pF/3KV CONN
2 3 4 5 6 Q804 DTC144WKA ZD803 + R803 100£[ 1/8W C801 1uF/25V C802 1uF/25V C803 1uF/25V
ZD802 RLZTE-11 5.6B 1 2
R804 10K£[ 1/10W
2
Q802 DTA144WKA Q803 PMBS3904 VDD RLZTE-11 5.6B 10K£[ 1/16W
33L8009-6N-H
2
1
IC_DIM C811 0.1uF/25V DIM=0~3.3V iout=3.5~7.5mA R809 220K£[ 1/16W R807 N.C(0£[ 1/16W)
R805
4 3 2 10K£[ 1/16W 1
G2P D2P S2P D2P G1N D1N S1N D1N Q805 SP8M3
1
2 D801 BAV99 1 3
2 CONN
R810 N.C(110K£[ 1/16W) C815 0.1uF/25V C817 1uF/25V R813 10£[ 1/8W 1 OVP C818 0.47uF/25V C821 1uF/25V 3 4 5 6 7 C823 0.1uF/25V C826 0.01uF 8 9 10 2
C812 1uF/25V
C813 1uF/25V
R808
C846
C810 5.6pF/3KV
R812 47K£[ 1/16W C814 0.1uF/25V
R811 430£[ 1/10W
0.047uF U801 CTIMR OVP ENA SST VDDA GNDA REF RT1 FB CMP OZ1060G R822 N.C (33K£[ 1/16W) R821 390K£[ 1/16W 6 4 VDD R823 43K£[ 1/16W 3 2 1 C834 1uF/25V R825 1K£[ 1/16W R824 1M£[ 1/16W D806 LL4148 Q808 RK7002 1K£[ 1/16W R827 6.2M£[ 1/2W R828 N.C R829 NC OVP 1 D805 BAV99 2 3 C838 NC R833 NC C839 R831 100£[ 1/10W FB2 3 1 D810 BAV99 OPT4 R826 FB2 1 FB1 D811 BAV99 D808 BAV99 1 3 CONN C835 1uF/25V C836 1uF/25V 5 6 7 8 1 2 3 OPT3 2 2 7 C830 22pF/3KV C831 5.6pF/3KV 2 CONN C832 22pF/3KV C833 5.6pF/3KV CN805 NDR_B PDR_A CT RT PGND LCT DIM LPWM PDR_C NDR_D 20 19 R814 18 17 16 15 14 13 12 11 IC_DIM C824 0.1uF/25V 4 C847 0.047uF 3 2 1 G2P D2P S2P D2P G1N D1N S1N D1N Q806 SP8M3 5 6 7 8 C827 2.2uF/25V C829 2.2uF/25V 1 OPT2 C825 2.2uF/25V R820 680£[ 1/10W NC OVP R817 56K£[ 1/16W C822 0.0047uF(309HZ) C816 220pF 1 D802 BAV99 2 3 C819 NC R816 NC C820 0.0047uF 2 3 1 BAV99 R819 100£[ 1/10W FB1 D804
R815 5.6K£[ 1/16W
R842 °l¥[62K£[ 1/16W)
R818 9.1K£[ 1/16W
OPT1
R841 °l¥[0£[ 1/16W)
C828 NC R840 39K£[ 1/16W
CN804
G2P D2P S2P D2P G1N D1N S1N D1N Q807 SP8M3
1 10 T802 80LL17T-16-LC
OPT1
Q809 RK7002
2
C837 0.1uF/25V OPT2
R830 1M£[ 1/16W Q810 RK7002 R834 1M£[ 1/16W C841 0.1uF/25V
R835 1M£[ 1/16W
C840 0.1uF
R832 5.6K£[ 1/16W
0.0047uF
R836 680£[ 1/10W
R837 430£[ 1/10W
OPT3
Q811 RK7002
C842 N.C
OPT4 C844 0.1uF/25V
Q812 RK7002 R838 1M£[ 1/16W
C843 0.1uF/25V
R839 1M£[ 1/16W
Title Size Date:
INPC1742SEA2
Document Number
<br><br><Doc> Custom <RevCode> Sheet 1 of 1 Rev<br><br>Wednesday, February 02, 2005<br><br>51<br><br><br/><br/><br/>
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