Acer P203W Service Guide 1
Service Guide Version and Revision Version Release Date Revision History A00 Aug.
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.
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).
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.
Table Of Contents Chapter 1 Monitor Features ………………………………………… 7 Introduction ……………………………………… 7 Electrical Requirements ……………………………………… 8 LCD Monitor General Specification ……………………………………… 9 LCD Panel Specification ……………………………………… 10 Support Timing ……………………………………… 12 Monitor Block Diagram ……………………………………… 13 Main Board Diagram ……………………………………… 14 Software Flow chart ……………………………………… 15 Main Board Layout ……………………………………… 17 Installation ……………………………………… 18 Attaching/Removing the b
Chapter 1 Monitor Features Introduction Scope This specification defines the requirements for the 17” MICROPROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA 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.
Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified.
LCD Monitor General Specification Driving system TFT Color LCD Active Display Area 433.44(H) × 270.90mm(V) LCD Panel Pixel pitch 0.258 (per one triad) x 0.258 Contrast Ratio 1000 : 1 Response time 5ms Separate Sync. H/V TTL H-Frequency 30kHz – 83kHz V-Frequency 56-75Hz Viewing angle (H) 90∘+/-20∘and (V) 90∘+/-10∘ Display Colors 16.7M Colors Max.
LCD Panel Specification General Specifications Absolute Maximum Ratings 10
Optical Specifications 11
Support Timing 12
Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, and keypad board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage. Flat Panel and CCFL Drive.
Main Board Diagram FLASH ROOM Crystal LCD Interface (X201) (CN301) 14.
Software Flow Chart 1 Y 2 3 N N 4 N 5 Y 6 N 7 8 Y Y 9 N 10 11 Y N 12 N 13 Y Y N 14 15 Y 17 18 N 19 Y 15 16
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.
Main Board Layout Symbol Description Symbol Description U701 056G 585 4A X201 U702 056G 563 31 CN301 033G801930F U202 056G 562172 CN401 033G3802 9 U402 056G1133713 CN201 033G3802 6 U101 056G1133 34 CN103 088G 35424F CN101 088G 35315F H 17 093G 22 53 H H N
Installation 18
Attaching/Removing the Base 19
Chapter 2 Operating Instructions 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 Controls Item Description Item Description 1.
eColor Management (OSD) 22
How to Adjust a Setting 23
Adjusting the picture 24
OSD Message a. Outline b. The Description For OSD Message Item Description Auto Config When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the Please Wait monitor do the auto config function. Input Not When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor Supported support range, will show this message. This message will be flying. Cable Not Analog-Only Model: When the video cable is not connected, will show this message.
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.
Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor for maintenance. Disassembly Procedure 1. Remove the cover hinge marked in red. (Fig 1) Fig 1 2. Remove the screws as following indicate to release base stand .
3. Remove the back cover and regard the hook.
4. Remove the keyboard. (Fig 5) Fig 5 5. Remove the bezel.
6. Remove the screws to remove the panel.
7. Remove the screw as following indicate to remove the main board, audio board and power board.
Fig 12 34
Chapter 4 Troubleshooting This chapter provides troubleshooting information for the P203W: 1. No Power 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 OK Reinsert or check the power section Measure U701 Pin2=3.3V, U702 Pin 2=1.
2. No Picture No picture Measure U701 Pin2=3.3V, U702 Pin 2=1.
3. Panel Power Circuit Check the PPWR panel power relative circuit Q301, Q302 Check CN301 PIN1 should have response from 0V to 5V When we NG switch the power switch from on to off In normal operation, when LED =green, Q301B =5 V, If PPWR no-response when the power switch Turn on and turn off, replace the U202 OK Replace panel 4.
5. No Backlight Check C802 (+) =12V NG OK Change F801 Check ON/OFF signal NG OK Check main board Check IC801 pin12=12V? NG Change Q805.
Chapter 5 Connector Information The following figure shows the connector locations on the monitor: 39
Chapter 6 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of P203W.Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). 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/).
Exploded Diagram (Model: P203W) 42
Part List Above picture show the description of the following component.
5 Power Board 6 Main Board 44
Chapter 7 Schematic Diagram Main Board R101 0R05 1/10W 5% FB102 R102 1K 1/16W R103 1K 1/16W DSUB_H DSUB_V 2 2 VGA_B+ 1 2 R106 2.2K 1/16W RLZ5.6B R105 RLZ5.6B R104 100R 1/16W C101 0.047uF DSUB_B+ 2 100R 1/16W C105 0.047uF DSUB_B- 2 C106 1000pF DSUB_SOG 2 100R 1/16W C107 0.047uF DSUB_G+ 2 R114 100R 1/16W C109 0.047uF DSUB_G- 2 R115 100R 1/16W C110 0.047uF DSUB_R+ 2 100R 1/16W C113 0.047uF DSUB_R- 2 BEAD ZD102 ZD101 2.
2 PA[0..9] CN301 PA[0..9] PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA8 PA9 2 PB[0..9] LVA3P LVA3M LVACKP LVACKM LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M LVB0M LVB0P LVB1M LVB1P LVB2M LVB2P RXO0RXO0+ RXO1RXO1+ RXO2RXO2+ LVBCKM LVBCKP LVB3M LVB3P LVA0M LVA0P RXOCRXOC+ RXO3RXO3+ RXE0RXE0+ LVA1M LVA1P RXE1RXE1+ LVA2M LVA2P LVACKM LVACKP LVA3M LVA3P RXE2RXE2+ RXECRXEC+ RXE3RXE3+ PB[0..
CN401 VCC3.3 1 2 3 4 5 6 7 8 9 VCC3.3 CMVCC CMVCC CMVCC BKLT-VBRI BKLT-EN C_PANEL_INDEX Volume# Mute R401 R403 10K 1/16W 10K 1/16W BKLT-EN PANEL_ID# Volume# Mute 2 2 C406 NC CONN Q403 R404 2N3904S-RTK/PS 4K7 1/16W C405 on_BACKLIGHT 2 0.1uF/16V DGND 1,2,3 VCC3.3 R405 10K 1/16W BKLT-VBRI R406 1K 1/16W TO-252 MVCC FB402 + INPUT OUTPUT 2 NC CMVCC C410 C402 100uF/25V 0.1uF/16V VCC3.3 U701 + 3 VIN VOUT C407 100uF/25V AP1117E33LA C409 + 0.
VDVI VMPLL VPLL AVDD VDDP VDDC VDDP RX2P RX2N RX1P RX1N RX0P RX0N RXCP RXCN DDC2_SDA DDC2_SCL AVDD 3 4 6 7 9 10 12 13 100 1 15 R204 390 1/16W 26 51 66 82 34 VDDC LVA3P LVA3M LVACKP LVACKM LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M REXT REFP LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVB0P LVB0M GPIO_P23 NC NC REFM U402 0.
Power board 100 1/4W R918 1K 1/4W 1K 1/4W 1K 1/4W 2 ZD901 D906 SP10100 PMBS3904 5 7 R935 100 1/4W 3 C929 0.001uF + R933 4K7 1/4W Vcc DRAIN GND HVS PROTECT DRIVER CTRL SENSE R907 NC 8 7 6 5 FB901 BEAD D903 BAW56DIODES 8 3 12 C902 0.001uF/250V ! C901 0.001uF/250V C915 470uF/16V R915 220K 1/8W + C939 1000uF/25V C916 0.1uF R940 33K 1/10W R924 1K5 1/10W ! R913 NC R911 1K 1/8W D907 NC POWER X'FMR C909 0.22uF/50V R925 1K 1/10W 1% R927 3.6K 1% 1/10W ZD922 RLZ5.
1 E T801 POWER X'FMR 8 3 C R855 33 1/4W C839 1000pF F801 0R05 1/4W B 2 1 2 D805 BAW56 1 R817 10K 1/10W C824 0.1uF Q801 PMBS3904 4 Q808 PDTA144WK Q805 PDTC144WK 3 R839 2 ON/OFF 0 1/8W 2 Q804 PMBS3906 1 1 R856 33 1/4W 7 1 R801 1K 1/10W 1% 9 S D G D S D 6 2 1 C838 1000pF 7 R828 10K 1/10W 8 3 3.6K 1/8W R857 33 1/4WC840 1000pF 1 C823 0.0022uF T802 POWER X'FMR 8 1 D802 BAV99 C811 10pF/3KV R850 C803 470uF/25V + 0 1/8W 2 C805 0.
