H243 LCD Monitor Service Guide
Page 1
Acer Acer -LCD-H243H Service Manual LCD Monitor Acer H243H - 0 -
Acer Acer -LCD-H243H Service Manual LCD Monitor Acer H243H - 0 -
H243 LCD Monitor Service Guide
Page 2
Corp. Corp. Ltd. 1 Table of InnoLux Tech. Acer H243H Service Manual 1 Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Contents 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. Corp. Ltd. 1 Table of InnoLux Tech. Acer H243H Service Manual 1 Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Contents 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.
H243 LCD Monitor Service Guide
Page 3
... to the user. z Always unplug the monitor before soldering. Before replacing any of the power supply in you 're unsure of these components read the parts list in this manual carefully. z Do not remove the monitor cabinet. Clean the cabinet with a clean, dry cloth. Service notes z When replacing parts or circuit boards, clamp the lead wires around terminals before cleaning it contains no user-serviceable parts. z Stop using replacement components rated for...
... to the user. z Always unplug the monitor before soldering. Before replacing any of the power supply in you 're unsure of these components read the parts list in this manual carefully. z Do not remove the monitor cabinet. Clean the cabinet with a clean, dry cloth. Service notes z When replacing parts or circuit boards, clamp the lead wires around terminals before cleaning it contains no user-serviceable parts. z Stop using replacement components rated for...
H243 LCD Monitor Service Guide
Page 4
....) Contrast ratio : 1000׃1 (TYP.) (1) DCR : 40000:1 (Max) Response time (Tr+Tf) : 5ms (TYP. General: H243H is designed with LVDS interface and VGA/DVI-D/HDMI input, it featured with white connector) 2. The power button and display control buttons are on the LCD panel. 1.2 Accessories AC Power Cord : 1.8 m. (Black. Operation Specifications The unit should suffer no visible cosmetic damage and should operate with VESA DPMS Plug & Play : VESA DDCCI OSD language : English, French...
....) Contrast ratio : 1000׃1 (TYP.) (1) DCR : 40000:1 (Max) Response time (Tr+Tf) : 5ms (TYP. General: H243H is designed with LVDS interface and VGA/DVI-D/HDMI input, it featured with white connector) 2. The power button and display control buttons are on the LCD panel. 1.2 Accessories AC Power Cord : 1.8 m. (Black. Operation Specifications The unit should suffer no visible cosmetic damage and should operate with VESA DPMS Plug & Play : VESA DDCCI OSD language : English, French...
H243 LCD Monitor Service Guide
Page 5
... of IEC61000-4-2(EN55024). (without discharge on VGA/DVI pin) 2.4 Reliability The MTBF 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 50Hz to 60Hz Inrush Current a. 40A max at cold-start, 25°C, DC output full-loading...
... of IEC61000-4-2(EN55024). (without discharge on VGA/DVI pin) 2.4 Reliability The MTBF 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 50Hz to 60Hz Inrush Current a. 40A max at cold-start, 25°C, DC output full-loading...
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 standard conditions refer to Sec 3.1.( Brightness and contrast are under default value ) Mode Cool Warm User 9300K 6500K Chromaticity...
... 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 standard conditions refer to Sec 3.1.( Brightness and contrast are under default value ) Mode Cool Warm User 9300K 6500K Chromaticity...
H243 LCD Monitor Service Guide
Page 7
... value 4.3 Timing requirements The LCD monitor must be display) 2. Acer 4. Non-interlace signals only (An interlace signal cannot be capable of displaying standard resolutions within the vertical frequency range of 55 ~ 76 Hz and the horizontal scan range of 31 ~ 80 KHz with maximum pixel clock of Separate Horizontal/Vertical Sync Digital : TMDS Signal: (min) ±200mVpp@24Bit 4.2 Signal Timing Through D-SUB/DVI connectors, this unit can support FH= 31~80 KHz, Fv...
... value 4.3 Timing requirements The LCD monitor must be display) 2. Acer 4. Non-interlace signals only (An interlace signal cannot be capable of displaying standard resolutions within the vertical frequency range of 55 ~ 76 Hz and the horizontal scan range of 31 ~ 80 KHz with maximum pixel clock of Separate Horizontal/Vertical Sync Digital : TMDS Signal: (min) ±200mVpp@24Bit 4.2 Signal Timing Through D-SUB/DVI connectors, this unit can support FH= 31~80 KHz, Fv...
H243 LCD Monitor Service Guide
Page 8
....75 Display Colors: 16.7M colors (RGB 6-bit + Hi_FRC) 7 Acer Acer -LCD-H243H Vertical / Horizontal Sync polarity: positive or negative. Function Specifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. 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...
....75 Display Colors: 16.7M colors (RGB 6-bit + Hi_FRC) 7 Acer Acer -LCD-H243H Vertical / Horizontal Sync polarity: positive or negative. Function Specifications All the tests to verify specifications in this section shall be performed under the following standard conditions unless otherwise noted. 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...
H243 LCD Monitor Service Guide
Page 9
Acer Number of menu icon that port C. When "Main OSD" displays, press [MENU] to perform function of Pixel Pixel Arrangement Brightness Contrast Ratio Viewing Angle Display Mode Frame rate Response Time Surface Treatment Lamp Outline Dimension 1920 × 1080 R.G.B. B. Display it, if search the port with signal in order) B. Vertical Stripe 300 cd/m2 (TYP.) 1000 (TYP.) 170(Horizontal) / 160(Vertical) Normally White 75 5ms (TYP. A. B. When "Main OSD" displays, press [AUTO] to return to change the...
Acer Number of menu icon that port C. When "Main OSD" displays, press [MENU] to perform function of Pixel Pixel Arrangement Brightness Contrast Ratio Viewing Angle Display Mode Frame rate Response Time Surface Treatment Lamp Outline Dimension 1920 × 1080 R.G.B. B. Display it, if search the port with signal in order) B. Vertical Stripe 300 cd/m2 (TYP.) 1000 (TYP.) 170(Horizontal) / 160(Vertical) Normally White 75 5ms (TYP. A. B. When "Main OSD" displays, press [AUTO] to return to change the...
H243 LCD Monitor Service Guide
Page 10
... V. Color Temp Red 0~100 80 User Green 0~100 80 Blue 0~100 80 OSD Auto Configure --- Position Focus --- --- 0~100 50 0~100 --- Depending on the left top. Acer FACTORY MODE ● Acer -LCD-H243H Press [e], and then press [POWER] for entering factory mode. 5.4 OSD Structure The On-Screen Display (OSD) shall be shown with all OSD controls set to use icon based menu through keypad OSD buttons or remote control unit. First Second Third Fourth Control Range Default Value User Acer e color Management...
... V. Color Temp Red 0~100 80 User Green 0~100 80 Blue 0~100 80 OSD Auto Configure --- Position Focus --- --- 0~100 50 0~100 --- Depending on the left top. Acer FACTORY MODE ● Acer -LCD-H243H Press [e], and then press [POWER] for entering factory mode. 5.4 OSD Structure The On-Screen Display (OSD) shall be shown with all OSD controls set to use icon based menu through keypad OSD buttons or remote control unit. First Second Third Fourth Control Range Default Value User Acer e color Management...
H243 LCD Monitor Service Guide
Page 11
Notes: (1) Clock default 50 is Mstar) 6.1 Operational condition: Equipment: PC, ISP card, signal cable and power cable. Others depend on timing. (2) Depend on timing & S/N Acer -LCD-H243H OFF --- SOP of firmware upgrade (Manufacturer of FW ICjPMC/SST/MX 6.2 Operational steps: 1. English --(2) 6. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state. 10 ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable Name...
Notes: (1) Clock default 50 is Mstar) 6.1 Operational condition: Equipment: PC, ISP card, signal cable and power cable. Others depend on timing. (2) Depend on timing & S/N Acer -LCD-H243H OFF --- SOP of firmware upgrade (Manufacturer of FW ICjPMC/SST/MX 6.2 Operational steps: 1. English --(2) 6. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state. 10 ESD requirements: antistatic wrists, antistatic gloves (fingers), and connecting cable Name...
H243 LCD Monitor Service Guide
Page 12
Software Checksum FW software rooter 11 FW IC Model Secondlypdownload FW software: first select "READ", and then load FW software in Rooter (Fig.2). Double click Figure One. Acer Acer -LCD-H243H One port of PCBA FW IC. Adjust ISP programming Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select "Device", next select manufacturer model of FW IC, which should be correspondent with that of ISP program card is connected to PC print port. 2.
Software Checksum FW software rooter 11 FW IC Model Secondlypdownload FW software: first select "READ", and then load FW software in Rooter (Fig.2). Double click Figure One. Acer Acer -LCD-H243H One port of PCBA FW IC. Adjust ISP programming Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select "Device", next select manufacturer model of FW IC, which should be correspondent with that of ISP program card is connected to PC print port. 2.
H243 LCD Monitor Service Guide
Page 13
There will be prompting if programming is OK. 12 Click "RUN" for beginning programming. 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.
There will be prompting if programming is OK. 12 Click "RUN" for beginning programming. 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.
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"650BOE36/GPS CFHJOOJOHQSPHSBNNJOH OK Turn off power if programming is OK ³Flowing chart NG Choose Config and adjust programming 13
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"650BOE36/GPS CFHJOOJOHQSPHSBNNJOH OK Turn off power if programming is OK ³Flowing chart NG Choose Config and adjust programming 13
H243 LCD Monitor Service Guide
Page 40
LCD Exploded drawing (All) 39 Acer 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 toBack cover 3 509412610 500R SCREW B CROSS T T-4*10 BLK ROHS 3 8.5Ô0.5 For Hingle to Stand Front 4 509000000 700R BOLT,#4-40x11.8,Ni 4 4.0Ô0.25 For D-SUB CON&DVI 3.2.
LCD Exploded drawing (All) 39 Acer 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 toBack cover 3 509412610 500R SCREW B CROSS T T-4*10 BLK ROHS 3 8.5Ô0.5 For Hingle to Stand Front 4 509000000 700R BOLT,#4-40x11.8,Ni 4 4.0Ô0.25 For D-SUB CON&DVI 3.2.
H243 LCD Monitor Service Guide
Page 42
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 if 3V Change F801, R808,R806 NG Change IC803 Check R832,IC801 Check pin6 of IC802 NG voltage is 14V yes Check FB801,D803,C8 07,C810 if short yes Change FB801,D803,C807, C810 Check pin2 of IC802 voltage above 0.85V yes NG Change R815, R 809, R848, R 849, R850,R851,C809, END 40
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 if 3V Change F801, R808,R806 NG Change IC803 Check R832,IC801 Check pin6 of IC802 NG voltage is 14V yes Check FB801,D803,C8 07,C810 if short yes Change FB801,D803,C807, C810 Check pin2 of IC802 voltage above 0.85V yes NG Change R815, R 809, R848, R 849, R850,R851,C809, END 40
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 CN104 NG U104 fail POWER Fail Check U101, U102 Check C161, R183 Check X101, C156, C157,R191 NG Inverter Fail OK Check Q102, R101, R102 42
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 CN104 NG U104 fail POWER Fail Check U101, U102 Check C161, R183 Check X101, C156, C157,R191 NG Inverter Fail OK Check Q102, R101, R102 42
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 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
H243 LCD Monitor Service Guide
Page 47
... ROHS 50 1 792381500000R PCBA,POWER KYEPAD/B,LP2441 ROHS 50 1 792381500010R PCBA,TOUCHPAD BOARD,LP2441 ROHS 50 1 453070801190R PWRCORD 16A/250V BLK 6FT VDE/KTL H05VV-F 50 1 453030300370R CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS 50 1 453030300371R CABLE,DVI-D 18+1P MALE 6FT BLACK 50 1 453010100380R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH 50 1 453030300120R CABLE AUDIO 1P 6FT BLACK/GREEN CP03B06P0 50 1 430303002230R...
... ROHS 50 1 792381500000R PCBA,POWER KYEPAD/B,LP2441 ROHS 50 1 792381500010R PCBA,TOUCHPAD BOARD,LP2441 ROHS 50 1 453070801190R PWRCORD 16A/250V BLK 6FT VDE/KTL H05VV-F 50 1 453030300370R CABLE,DVI-D 18+1P MALE 6FT BLACK , ROHS 50 1 453030300371R CABLE,DVI-D 18+1P MALE 6FT BLACK 50 1 453010100380R CABLE,D-SUB 15P MALE 6FT BLACK/BLUE, ROH 50 1 453030300120R CABLE AUDIO 1P 6FT BLACK/GREEN CP03B06P0 50 1 430303002230R...
H243 LCD Monitor Service Guide
Page 49
Acer 6.2 Switching Mode Power Supply circuit Acer -LCD-H243H 47
Acer 6.2 Switching Mode Power Supply circuit Acer -LCD-H243H 47