Acer B173E Schematic

Acer B173

Service Guide

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

100% Recycled Paper

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 m eans, electronic, mechanical, mag netic, optical, chemical, manual or otherwise, without the prior written per miss ion o f Acer Inc orporated.

Disclaimer

The information in this guide is subject to change without notice. Acer Incorpor ated makes no representations or warranties, either expresses 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 man ual is sold or licensed “as is ”. Should the programs prove defective following their purchase , the buyer (and not Acer Incorporated, its distributor, of 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 tr ademarks and/or registered trademarks of their respective ho lders.

Conventions

The following conven tions 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 av oid pos sible hardw are

or software probl ems.

Important Reminds you to do specific actions relevant to the

accomplishment of procedures.

Preface

Before using this information and the produc t it suppor ts, please read the following gener al information.

1. this Service Guide provides you with all technical information rela ting to the BASICCONFIGURATION decided for Acer’s “global” pro duct offering. To better fit local market requireme nts 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 not 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. H owev er, there is no guar antee that interfe re nce will not occur in a particular installation. If this equipment doe s cause harmful interference to radio or television reception, Which can be determined by turning the equipment off and on, the user is encour aged to try to correct the interference by one or more of the following measures:

1. Reorient or relocate the receiving an tenna.

2. Increase the separation betwee n the equipment and receiver.

3. Connect the equipment into an outlet on a circuit differe nt 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 responsib le f or compliance could void

the user’s authority to operate the equipment.

2. Shielded interface cables and AC power cord, if any , mus t 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 guidelines for energy efficiency.

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

WARNING:

T o prevent fire or chock hazard, do not expose the monitor to r ain 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 manufacture or sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacture and follow the kit instructions.

z Slots and openings in the back and bottom of the cabinet area provided for ventilation. To ensure

reliable operation of the monitor and to protect it from ov erheating, 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 unles s proper ventila tion is provided.

z The monitor should be oper ated only from the type of power source indicated o n 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 grounde d 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 o n the monitor cabinet. It could shor t 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 se rvicing 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 b e installed nea r the equipment and shall be easily accessible. z For use only with the attached power adapter (output 12V DC) which have UL,CSA listed license

SPECIAL NOTES ON LCD MONITORS

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

NOTES

z 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.

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

z Due to the nature of the LCD screen, an afterimage of the previous screen may remain after switchin g

the imag e, wh en t he s ame ima ge is d isp la y ed fo r ho ur s. I n th is c as e, th e s cre e n is re co v er e d slo wly by changing the image or turning off the P ower Switch for hours.

Table of contents

Chapter 1 MONITOR FEATURE……………………………………………………………………9

Chapter 2 OPERATING INSTRUTION ………………………………………………………17

Chapter 3 MACHINE ASSEMBLY………………………………………………………………..24

Chapter 4 TROBLE SHOOTING…………………………………………………………………..29

Chapter 5 CONNECTOR INFORMATION…………………………………………………..38

Chapter 6 FRU LIST…………………………………………………………………………………….40

Chapter 7 SCHEMATIC DIAGRAM …………………………………………………………….42

Monitor Feature

Chapter 1

Driving system TFT Color LCD Size 17" Pixel pitch 0.264 mm

AUO: 160(H) x 160 (V) degree

Viewable angle

Brightness

Contrast Ratio

LCD Panel

Input

H-Frequency 31-80KHZ V-Frequency 56-75HZ

Display Color Maximum Dot Clock ® 135MHz Max Resolution 1280x1024@75HZ Plug & Play VESA FPMPMI

Response time 5ms (Tr+Tf) Video R,G,B Analog, DVI box (optional) Separate Sync H/V TTL

SAM: 160(H) x 160 (V) degree AUO: 300 cd/m²(typ.) SAM: 300 cd/m²(typ.) AUO: 800:1(typ.) SAM: 1000:1(typ.)

AUO: 16.2 million Colors SAM: 16.7 million colors

ON Mode <37W

EPA ENERGY STAR Audio output Rated Power 2.0W rms(Per channel) Input Connector D-Sub 15 pin, DVI 24 pin,(optional) Input Video Signal Analog : 0.7Vp-p,75OHM

Screen Size (Active) Power Source 90~264 Vac, 47~63HZ

Environmental Considerations

Weight (N.W.) TBD kg Dimension 430(W) x 425(H) x 215 (D) mm(with packing)

OFF Mode <1W

Horizontal : 337.9mm Vertical : 270.3mm

Operating Temp : 5 to 40 degree ; Storage Temp : -20 to 0 degree ; Operating Humidity : 20% to 80%

* Power Switch * MENU * / Volume * / Volume * AUTO

Switch

External Controls :

Regulatory Compliance cUL, UL, TUV, CE, TCO03, CSA, FCC

* e-color

* Contrast/brightness * Focus * Clock * H.Position * W.Position * Language * OSD Color temperature * OSD Position & Timeout * Auto Config * Input * Information * Reset * Exit

Timings

The product has 26 memory modes in total. 16 modes are preset and 10 modes are user definable.

MODE NO. 1 2 3 4

RESOLUTION 720 x 400 640 x 480 640x480 640 x 480 Dot clock(MHz) 28.321 25.175 30.24 31.5 f h 31.469kHz 31.469kHz 35.0kHz 37.861kHz H-Total ( us ) 31.78(900dots) 31.778 (800 dots) 28.571(864 dots) 26.413 (832 dots) H-Sync ( us ) 3.813(108dots) 3.813 (96 dots) 2.116 (64 dots) 1.270(40 dots) H-B-P ( us ) 1.907(54dots) 1.907 (48 dots) 3.175 (96 dots) 4.064(128 dots) H-Active ( us ) 25.42(720dots) 25.422 (640 dots) 21.164 (640 dots) 20.317(640 dots) H-F-P ( us ) 0.636(18dots) 0.636 (16 dots) 2.116 (64 dots) 0.762(24 dots) f v 70Hz(70.087) 60Hz (59.940) 66.7 HZ (66.667) 72.809Hz V-Total (ms ) 14.27(449 lines) 16.683 (525 lines ) 15.000 (525 lines ) 13.735(520 lines) V-Sync ( ms ) 0.064(2 lines) 0.064 (2 lines ) 0.086 (3 lines ) 0.079(3 lines) V-B-P (ms ) 1.112(35 lines) 1.049 (33 lines ) 1.114 (39 lines ) 0.739(28 lines) V-Active ( ms ) 12.71(400 lines) 15.253 (480 lines ) 13.714 (480 lines ) 12.678(480 lines) V-F-P ( ms ) 0.384(12 lines) 0.317 ( 10 lines) 0.086 (3 lines ) 0.237(9 lines) SYNC. H/V -/+ - / - +/+ -/POLARITY Or -/- SEP . SYNC Y Y Y Y

MODE NO. 5 6 7 8

RESOLUTION 640 x 480 800 x 600 800 x 600 800 x 600 Dot clock(MHz) 31.5 36 40 49.5 f h 37.500kHz 35.16kHz 37.879kHz 46.875kHz H-Total ( us ) 26.667(840 dots) 28.44(1024 dots) 26.40 (1056 dots) 21.333 (1056dots) H-Sync ( us ) 2.032 (64 dots) 2.00(72 dots) 3.200 (128 dots) 1.616 (80 dots) H-B-P ( us ) 3.810 (120 dots) 3.56(128 dots) 2.200 ( 88 dots) 3.232 (160 dots) H-Active ( us ) 20.317 (640 dots) 22.22(800 dots) 20.00 ( 800 dots) 16.162 (800 dots) H-F-P ( us ) 0.508 (16 dots) 0.67(24 dots) 1.000 (40 dots) 0.323 (16 dots) f v 75Hz (75) 56.25 60Hz (60.316) 75Hz (75.000) V-Total (ms ) 13.333 (500 lines) 17.78(625 lines) 16.58 (628 lines) 13.333 (625lines) V-Sync ( ms ) 0.080 (3 lines) 0.06(2 lines) 0.106 (4 lines) 0.064 (3 lines) V-B-P (ms ) 0.427 (16 lines) 0.63(22 lines) 0.607 (23 lines) 0.448 (21 lines) V-Active ( ms ) 12.80 (480 lines) 17.07(600 lines) 15.84 (600 lines) 12.80 (600lines) V-F-P ( ms ) 0.027 ( 1 line ) 0.03( 1 line) 0.026 (1 line ) 0.021 (1 line ) SYNC. H/V - / - +/+ + / + + / + POLARITY SEP . SYNC Y Y Y Y

MODE NO. 9 10 11 12

RESOLUTION 800 x 600 832 x 624 1024 x 768 1024 x 768 Dot clock(MHz) 50 57.283 65 75 f h 48.077kHz 49.72kHz 48.363kHz 56.48kHz H-Total ( us ) 20.80 (1040dots) 20.11(1152 dots) 20.677(1344 dots) 17.71(1328 dots) H-Sync ( us ) 2.400 ( 120 dots) 1.12(64 dots) 2.092(136 dots) 1.81(136 dots) H-B-P ( us ) 1.280 (64 dots) 3.91(224 dots) 2.462(160 dots) 1.92(144 dots) H-Active ( us ) 16.00 (800 dots) 14.52( 832 dots ) 15.754(1024 dots) 13.65(1024 dots) H-F-P ( us ) 1.120 (56 dots) 0.56(32 dots ) 0.369(24 dots) 0.32(24 dots) f v 72Hz (72.188) 74.55Hz 60.004Hz 70.07Hz V-Total (ms ) 13.85 (666 lines) 13.41(667 lines) 16.666(806 lines) 14.27(806 lines) V-Sync ( ms ) 0.125 (6 lines) 0.06(3 lines) 0.124(6 lines) 0.11(6 lines) V-B-P (ms ) 0.478 (23 lines) 0.78(39 lines) 0.600(29 lines) 0.51(29 lines) V-Active ( ms ) 12.48 (600 lines) 12.55 (624 lines) 15.880(768 lines) 13.60(768 lines) V-F-P ( ms ) 0.770 ( 37 line ) 0.02(1 line) 0.062(3 lines) 0.05(3 lines) SYNC. H/V + / + +/+ -/- -/POLARITY SEP . SYNC Y Y Y Y

MODE NO. 13 14 15 16

RESOLUTION 1024 x 768 1280 x 1024 1280 x 1024 1152 x 864 Dot clock(MHz) 78.75 108 135 108 f h 60.02kHz 63.981kHz 79.976KHz 67.5 KHz H-Total ( us ) 16.66(1312 dots) 15.630 (1688 dots) 12.504 (1688 dots) 14.815(1600 dots) H-Sync ( us ) 1.22 (96 dots) 1.037 (112 dots) 1.067 (144 dots) 1.185(128 dots) H-B-P ( us ) 2.23 (176 dots) 2.296 (248 dots) 1.837 (248 dots) 2.370(256 dots) H-Active ( us ) 13.00 (1024 dots) 11.852 (1280 dots) 9.481 (1280dots) 10.667(1152 dots) H-F-P ( us ) 0.20 (16 dots) 0. 444 (48 dots) 0.119 (16 dots) 0.593(64 dots) f v 75.03Hz 60.020Hz 75.025 Hz 75.06 Hz V-Total (ms ) 13.33 (800 lines) 16.661 (1066 line s) 13.329 (1066 lines) 13.333(900 lines) V-Sync ( ms ) 0.05 (3 lines) 0.047 ( 3 lines) 0.038 (3 lines) 0.044(3 lines) V-B-P (ms ) 0.47 (28 lines) 0.594 ( 38 lines) 0.475 (38 lines) 0.474(32 lines) V-Active ( ms ) 12.80 (768 lines) 16.005 (1024 line s) 12.804(1024 lines) 12.800(864 lines) V-F-P ( ms ) 0.02 (1 lines) 0.016 (1 line ) 0.013 (1 lines) 0.015(1 lines) SYNC. H/V -/- +/+ +/+ +/+ POLARITY SEP . SYNC Y Y Y Y

DVI-D

Monitor Block Diagram

DVI_INPUT

DVI_IIC

TO PANEL

D D

EEPROM EDID

PANEL CONNETER

24C02

SCALER RTD2525LH(RTD2545L)

D_SUB15_INPUT(R/G/B/HS/VS/SOG)

D-SUB15

D-SUB15_IIC

EEPROM

C C

EDID 24C02

CONTROL BUS

EEPROM 24C16

MCU RTD2021

BUTTON BOARD

B B

5DVCC

AUDIO AMP TPA6021A4

SPEAKER

POWER

33VCC

AUDIO INPUT

LDO TO 3.3V

BOARD

A A

18DVCC

LDO TO 1.8V

PCB CONDUCTOR VIEW

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