Acer H243 H243 LCD Monitor Service Guide
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- Acer H243 | H243 LCD Monitor Service Guide - Page 1
Acer Acer -LCD-H243H Service Manual LCD Monitor Acer H243H - 0 - - Acer H243 | H243 LCD Monitor Service Guide - Page 2
Important Safety Notice 02 01 Product Specification 03 02 Flat Panel Specification 15 03 Exploded Diagram 36 04 Troubleshooting ...37 05 Spare Parts List 42 06 Schematics and Layouts 43 07 Assembly and Disassembly 46 Appendix : User's manual Copyright Copyright 2006 InnoLux Tech. Corp - Acer H243 | H243 LCD Monitor Service Guide - Page 3
're unsure of the power supply in you residence, consult your local dealer or Power Company. z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This monitor should only be repaired by a qualified technician. z Do not remove the monitor cabinet. There are high - Acer H243 | H243 LCD Monitor Service Guide - Page 4
Acer -LCD-H243H 1. General: H243H is designed with LVDS interface and VGA/DVI-D/HDMI input, it featured with embedded universal AC power supplies and audio input. It's a green product and meets all ROHS standard. The power button and display control buttons are on the front of the monitor - Acer H243 | H243 LCD Monitor Service Guide - Page 5
of displaying an all WHITE field at mid Brightness and Contrast settings. 3. Electrical and Optical Characteristics and Performance 3.1 Main Power Supply 3.1.1AC Input Voltage Range It is a universal type and the input voltage range is from 100 ~ 240Vrms 3.1.2 AC Input Current 1.5A (max) at - Acer H243 | H243 LCD Monitor Service Guide - Page 6
Test pattern Video Resolution Video input level Warm-up time : 25 ± 5°C : white : 1920 x 1080 : 700 mV ± 2% : 30 minutes Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall BL ≥ 240 cd/m2 (as panel spec). 3.2 White balance The test - Acer H243 | H243 LCD Monitor Service Guide - Page 7
: 1. Non-interlace signals only (An interlace signal cannot be display) 2. Please refer to F/W specification for more detail 3. Each frequency of Power Macintosh and Sun Ultra is a reference value 4.3 Timing requirements The LCD monitor must be capable of displaying standard resolutions within the - Acer H243 | H243 LCD Monitor Service Guide - Page 8
Acer Acer -LCD-H243H Vertical / Horizontal Sync polarity: positive or negative. If input signal is out of range of horizontal 31~80 KHz or vertical 55-76Hz, or pixel clock large than 165MHz, message "Input Not Supported" is shown on screen. 4.1 DDC data H243H Analog 0 12 3 4 5 6 7 8 9 ABCD E F - Acer H243 | H243 LCD Monitor Service Guide - Page 9
556.0(W) ×323.2(H) ×16.65(D) (TYP.) Acer -LCD-H243H 5.2 Keypad Function 5.2.1 Control buttons on the front bezel CONTROL KEY KEYS FUNCTION [POWER] Power on or power off the monitor MENU] [AUTO] [e Color ] [Input select] A. When "Main OSD" displays, press these keys to change the contents of - Acer H243 | H243 LCD Monitor Service Guide - Page 10
● Acer -LCD-H243H Press [e], and then press [POWER] for DC power on. ON OSD menu will be shown with "F" on the left top. Select "F" for entering factory mode. 5.4 OSD Structure The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control - Acer H243 | H243 LCD Monitor Service Guide - Page 11
Acer ACM Input Language Reset Resolution H. Freq Info V. Freq Input Type S/N OFF ON OFF VGA DVI HDMI EMEA English Russian Acer -LCD-H243H OFF --- English --(2) 6. SOP of firmware upgrade (Manufacturer of Scaler is Mstar) 6.1 Operational condition: Equipment: PC, ISP card, signal cable and power - Acer H243 | H243 LCD Monitor Service Guide - Page 12
Acer Acer -LCD-H243H One port of ISP program card is connected to PC print port. 2. Adjust ISP that of PCBA FW IC. Double click Figure One. FW IC Model Secondlypdownload FW software: first select "READ", and then load FW software in Rooter (Fig.2). Software Checksum FW software rooter 11 - Acer H243 | H243 LCD Monitor Service Guide - Page 13
Acer Thirdly, select "Connect" and enter ISP MODE as in the following Figure 3. Acer -LCD-H243H Fourthly, select "AUTO", and keep its default value. Click "RUN" for beginning programming. There will be prompting if programming is OK. 12 - Acer H243 | H243 LCD Monitor Service Guide - Page 14
Acer Acer -LCD-H243H Note: if programming fails or success rate is not high, click "Config" and adjust its speed in "E2PROM DEVICE SETTING" After connecting, AC ON, DC ON OK Open ISP program OK Choose manufacturer and model of FW IC OK LOAD FW software OK Click Connect and enter ISP MODE OK $MJDL - Acer H243 | H243 LCD Monitor Service Guide - Page 15
Acer 2. Flat Panel Specification Acer -LCD-H243H 14 - Acer H243 | H243 LCD Monitor Service Guide - Page 16
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03 Exploded Diagram 3.1 H243H_SCREW_LIST Acer -LCD-H243H ITEM PN Description Q'T Y(P CS) Fixed T(kg*cm) Remark 1 509146306 SCREW,P,CROSS,W/WAS 200R ,M3*6,Zn-Cc 7 6.5Ô0.5 For NVBD/PWRBD/HDMI 2 509216608 110R SCREW,F,CROSS,M4*8,B LACK,NL,ROHS(NYLOK ) 4 12Ô1 For Hingle - Acer H243 | H243 LCD Monitor Service Guide - Page 41
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Acer Unstable power 04 Troubleshooting 4.1 No Power & LED Off Acer -LCD-H243H Check sampling Circuit Check the R pin voltage of IC803 about 2.5V yes NG NG Check F801, R808,R806 NG Check the C pin voltage of IC803 - Acer H243 | H243 LCD Monitor Service Guide - Page 43
Acer 4.2 No raster Acer -LCD-H243H 41 - Acer H243 | H243 LCD Monitor Service Guide - Page 44
Acer Black Screen 4.2 Black screen Acer -LCD-H243H Check power supply: NG Pin 1, 2 of CN104 OK Check power supply: NG For U104 OK Check reset: NG pin 8 of U104 OK Check Crystal waveform NG Pin 25,26 of U104 OK Check CCFL_Enable Pin 101 of U104 OK Check Pin 7 of - Acer H243 | H243 LCD Monitor Service Guide - Page 45
Acer Bad Screen 4.4 Bad Screen Acer -LCD-H243H Check LVDS OK cable NG Change LVDS OK cable NG Check Crystal: OK Pin 25,26 of U104 NG Change X101, C156, C157 Workmanship LVDS cable NG Check the pins of U104 43 - Acer H243 | H243 LCD Monitor Service Guide - Page 46
Acer White Screen 4.5 White screen Acer -LCD-H243H Check LVDS Cable Insert OK? NG Change LVDS Cable NG Check VLCD is +5V? NG Check Panel Enable of U104 OK Check Q101, Q104, Q105, - Acer H243 | H243 LCD Monitor Service Guide - Page 47
Acer Acer -LCD-H243H 05 Spare parts List 82424171A120R OEM PART NO DESCRIPTION MOQ N/A 792381300701R PCBA,I/F BOARD(EMEA,W/SPK),LP2441-717 RO 50 1 792381400700R PCBA,P/I BOARD,W/SPK,LP2441-717 ROHS 50 1 792381500000R PCBA,POWER KYEPAD/B,LP2441 ROHS 50 1 792381500010R PCBA,TOUCHPAD - Acer H243 | H243 LCD Monitor Service Guide - Page 48
Acer 6.1 PI BD Layout Acer -LCD-H243H 06 Schematics and Layouts 46 - Acer H243 | H243 LCD Monitor Service Guide - Page 49
Acer 6.2 Switching Mode Power Supply circuit Acer -LCD-H243H 47 - Acer H243 | H243 LCD Monitor Service Guide - Page 50
Acer Acer -LCD-H243H 7.0 Assembly and Disassembly The tool of Assembly and disassembly : 1) Electrostatic gloves 2) Electric screwdriver: the lengthe of screwdriver top is 6±0.5cm and 15±0.5cm ; the diameter of screwdriver top is Φ5*H5mm 48 - Acer H243 | H243 LCD Monitor Service Guide - Page 51
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