HCL HCMELWBT11 Service Manual Download | Manualshive

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18.5” LCD Color Monitor HCL HCMELWBT11

35

8.2.3 Key Board

OSD is unstable or not working

Is Key Pad Board connecting normally?

Connect Key Pad Board

Is Button Switch normally?

Replace Button Switch

OK

NG

NG

Is Key Pad Board Normally?

Replace Key Pad Board

OK

NG

OK

Check Main Board

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Summary of Contents for HCMELWBT11

Page 1: ... 5 3 Operation Instructions 6 3 1 Control Buttons 6 3 2 Attaching the Cables 7 3 3 Adjusting the Picture 7 4 Input Output Specification 10 4 1 Input Signal Connector 10 4 2 Factory Preset Display Modes 10 4 3 Panel Specification 11 5 Block Diagram 13 5 1 Software Flow Chart 13 5 2 Electrical Block Diagram 15 6 Schematic 17 6 1 Main Board 17 6 2 Power Board 22 6 3 Key Board 25 7 PCB Layout 26 7 1 M...

Page 2: ...18 5 LCD Color Monitor HCL HCMELWBT11 2 Revision List Revision Date Revision History TPV Model A00 Apr 1 09 Initial Release T8RCM5DCXXKLAN ...

Page 3: ...ty characteristics may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or implied arising out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM ...

Page 4: ...y VESA DDC1 2BTM ON Mode 37W EPA ENERGY STAR OFF Mode 1W Input Connector D Sub 15pin Input Video Signal Analog 0 7Vp p standard 75 OHM Positive Horizontal 409 8mm Maximum Screen Size Vertical 230 4mm Power Source 100 240V 50 60Hz 1 5A Operating Temp 0 to 50 C Storage Temp 20 to 60 C Environmental Considerations Operating Humidity 20 to 90 Weight N W 3 7kg Unit net Dimension 442 20mm 340 76mm 190mm...

Page 5: ...rol 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 AC IN 100V 240V Monitor Block Diagram Video signal DDC Power Board Flat Panel and CCFL backlight Main Board RS232 Connector For white balance adjustment in factory mode HOST Computer CCFT Drive Key board ...

Page 6: ...r will light up 3 1 Control Buttons External Control Buttons 1 Auto Adjust button Exit 2 Volume 3 Volume 4 MENU ENTER 5 Power button Front Panel Control Power Button Press this button to turn the monitor ON or OFF and display the monitor s state Power Indicator Green Power On mode Orange Off mode MENU ENTER Activate OSD menu when OSD is OFF or activate de activate adjustment function when OSD is O...

Page 7: ...Input socket the other end to the computer s VGA port and tighten the two screws on the cable connector Connecting the Power Cord Connect the AC power cord into your LCD monitor s AC power input The AC power cord may be connected to either a wall power outlet or the power outlet socket on your PC depending on the type of power cord supplied with your LCD monitor Connecting the Audio Cable Connect ...

Page 8: ...e Game Game Mode Movie Movie Mode Eco Sports Sports Mode Gamma1 Adjust to Gamma 1 Gamma2 Adjust to Gamma 2 Gamma Gamma3 Adjust to Gamma 3 Off Disable dynamic contrast ratio Luminance DCR On Enable dynamic contrast ratio Clock Adjust picture Clock to reduce Horizontal Line noise Focus Adjust Picture Phase to reduce Vertical Line noise H Position Adjust the horizontal position of the picture Image S...

Page 9: ...able Nature Skin Mode Green Field on or off Disable or Enable Green Field Mode Sky blue on or off Disable or Enable Sky blue Mode AutoDetect on or off Disable or Enable AutoDetect Mode Color Boost Demo on or off Disable or Enable Demo Frame Size Adjust Frame Size Brightness Adjust Frame Brightness Contrast Adjust Frame Contrast Hue Adjust Frame Hue Saturation Adjust Frame Saturation Position Adjus...

Page 10: ... Color Display Signal Cable 1 5 6 10 11 15 4 2 Factory Preset Display Modes Standard Resolution Horizontal Frequency KHz Vertical Frequency Hz 640 480 60Hz 31 469 59 940 640 480 72Hz 37 861 72 809 VGA 640 480 75Hz 37 500 75 000 DOS Mode 720 400 70Hz 31 469 70 087 800 600 56Hz 35 156 56 250 800 600 60Hz 37 879 60 317 800 600 72Hz 48 077 72 188 SVGA 800 600 75Hz 46 875 75 000 1024 768 60Hz 48 363 60...

Page 11: ...nel driver ICs control circuit and backlight By applying 6bit Hi FRC digital data 1366 768 16 7M color images are displayed on the 18 51 diagonal screen Input power voltage is 5 0V for LCD driving Inverter for backlight is not included in this module General specifications are summarized in the following table 4 3 1 General Specifications 4 3 2 Optical Characteristics ...

Page 12: ...18 5 LCD Color Monitor HCL HCMELWBT11 12 4 3 3 Electrical Characteristics TFT LCD Module Back Light Unit Electrical Specification Lamp Life Time ...

Page 13: ...18 5 LCD Color Monitor HCL HCMELWBT11 13 5 Block Diagram 5 1 Software Flow Chart 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 3 8 9 14 11 13 Y N 15 Y N 16 17 19 Y N 18 ...

Page 14: ...rn 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 Pr...

Page 15: ...CL HCMELWBT11 15 5 2 Electrical Block Diagram 5 2 1 Main Board Crystal 14 318MHZ X401 FLASH ROM SST25LF020A U402 Scalar TSUM1PFR Include ADC OSD MCU U401 D Sub Connector CN101 Panel Interface CN403 Key Control Interface CN401 ...

Page 16: ...or R904 R932 R933 PWM Control IC901 Transformer AC input 12V ON OFF Feedback Circuit Transformer T801 MOSFET Q802 Lamp 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes Output Circuit PWM Control TL494IDR IC801 Power Switch Q901 Photocoupler IC902 12V Transistor Q805 Q808 ...

Page 17: ..._5V ESD_5V 04 Output CMVCC PB 0 9 PA 0 1 PPWR_ON PA 4 9 02 Input DSUB_R DSUB_G DSUB_B DSUB_V DSUB_R DSUB_G DSUB_B DET_CABLE DSUB_H DSUB_SOG DDC1_SDA DDC1_SCL DSUB_5V VCC3 3 ESD_5V 03 Scalar DSUB_R DSUB_G DSUB_SOG DSUB_B DSUB_R DSUB_G DSUB_B DSUB_H DSUB_V Adj_BACKLIGHT VCC1 8 VCC3 3 PA 0 1 PB 0 9 DDC1_SDA DDC1_SCL DET_CABLE on_BACKLIGHT PPWR_ON PANEL_ID Volume Mute CMVCC PA 4 9 CMVCC1 VCTRL 05 Powe...

Page 18: ...uF R121 10K 1 16W 5 C110 0 047uF C102 22pF R106 2K2 1 16W 5 R112 75R 1 16W 5 R107 75R 1 16W 5 C109 0 047uF R105 2K2 1 16W 5 C108 5pF 50V C104 5pF 50V R115 100R 1 16W 5 R108 100R 1 16W 5 1 2 ZD104 UDZSNP5 6B R103 100R 1 16W 5 R109 390 OHM 1 16W C101 0 047uF R116 75R 1 16W 5 C106 0 047uF R114 100R 1 16W 5 GND POWER DSUB_5V DGND VCC3 3 H_Sy nc DDC1_SDA 5 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB...

Page 19: ...C411 22pF C418 NC R428 3 9K OHM 1 16W R411 100R 1 16W 5 R421 10K 1 16W 5 1 2 3 4 5 6 7 8 CN402 NC CONN KEY1 R419 100R 1 16W 5 C404 0 1uF 16V C408 0 22uF16V C403 0 1uF 16V R429 NC C413 0 1uF 16V R410 120R 1 16W 5 R431 NC CE 1 SO 2 WP 3 VSS 4 SI 5 SCK 6 HOLD 7 VDD 8 U402 SST25LF020A 33 4C SAE R414 120R 1 16W 5 C417 0 1uF 16V C414 0 1uF 16V R420 100R 1 16W 5 C416 0 1uF 16V RIN0P 13 GIN0P 10 SOGIN0 11...

Page 20: ...E 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 1E 2 A 6 7 Tuesday July 29 2008 715G2904 1E 2 称爹 04 Output S 1 AO3401L 3 2 D G PANEL_VCC 2 4 6 8 10 12 14 1 3 5 7 9 11 13 CN403 CONN R434 330 OHM 1 4W C420 0 1uF 16V LVBCKM PB3 LVB2M PB5 LVB3M PB1 LVB0M PB9 LVB1M PB7 LVBCKP PB2 LVB2P PB4 LVB1P PB6 LVB3P PB0 LVB0P PB8 R443 0R05 1 16W VCC3 3 R438 NC 0ohm CMVCC PA 0 1 PA4 PA5 PA 4 9 PA...

Page 21: ...S 1 2 3 4 5 6 7 8 9 CN404 CONN C425 NC ESD_5V 5 3 1 2 D403 NC BAT54C ESD_5V 3 1 2 D401 BAV99 R448 4K7 1 16W 5 DSUB_5V DSUB_5V 5 C422 0 1uF 16V R449 NC C428 0 1uF 16V CMVCC MVCC VCC3 3 VCC3 3 VCC3 3 VCC3 3 VCC3 3 VCC3 3 CMVCC1 VCC1 8 CMVCC1 VCC3 3 VCTRL 5 R450 NC NC R0402 OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component 絬隔瓜絪腹 1E 2 B 7 7 T...

Page 22: ...000pF R915 100K OHM 1 1 8W R925 1K 1 8W L904 1 0uH L905 1 0uH C921 470UF R940 33K 1 10W R942 1K 1 10W 1 1 2 ZD921 RLZ13B 1 2 ZD922 RLZ5 1B D903 LL4148 1 2 ZD923 5 6B ROHM 1 2 HS5 SHIELD H85G0002 1 5V1 R939 1K 1 8W C932 0 001uF Q903 PMBS3904 R943 470R 1 8W Q901 2SK2645 54MR F905 0 OHM 1 4W C939 820UF N C C938 NC C906 1500pF2KV R900 680K OHM 1 4W R902 680K OHM 1 4W R901 680K OHM 1 4W C940 1000uF25V ...

Page 23: ...8W R810 51K OHM 1 1 8W R863 10K 1 10W 1 C803 30pF 3KV R823 0R05 1 10W 5 R826 1K 1 8W D810 NC R807 10K 1 10W 1 DIM ON OFF R835 1M 1 10W 5 1 2 CN801 CONN C842 0 01uF C834 0 1uF 25V R827 1K 1 10W 1 R824 1K 1 10W 1 S 1 G 2 S 3 G 4 D 8 D 7 D 6 D 5 Q802 AM9945N T1 PF R818 1K 1 10W 1 Q808 PDTA144WK R862 1M 1 10W 5 R825 22R 1 8W C817 NC D814 LL4148 C838 1500PF 50V C807 0 1uF 25V C846 NC R865 NC R864 NC C8...

Page 24: ...69JITUL C608 1uF 25V R601 10K 1 10W 5 R608 1R 1 8W R605 10K 1 10W 5 1 2 FB602 BEAD C601 0 47uF 16V C603 0 47uF 16V C604 100uF 25V C609 1uF 25V C606 0 47uF 16V 5V1 C612 0 1uF 16V VOL R603 10K 1 10W 5 MUTE LOUT 1 4 2 5 3 CN601 PHONEJACK R606 5 6K OHM 1 10W 1 2 3 4 CN602 CONN R607 5 6K OHM 1 10W OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Component ...

Page 25: ...1 NC 0 001uF LBADC1 UP SGND SGND R004 2K OHM 1 4W MENU SGND C006 NC 0 1uF C008 NC 0 1uF SW003 SW 2 1 3 4 5 SGND SGND C007 NC 0 1uF ZD001 NC UDZS5 6B C009 NC 0 1uF SW004 SW 2 1 3 4 5 ZD005 NC UDZS5 6B 0V LED_YEL ZD004 NC UDZS5 6B C005 NC 0 001uF A B 2 2 Thursday October 30 2008 715G2835 1 称爹 2 0 key OEM MODEL Size Rev Date Sheet of TPV MODEL PCB NAME 称爹 T P V Top Victory Electronics Co Ltd Key Comp...

Page 26: ...18 5 LCD Color Monitor HCL HCMELWBT11 26 7 PCB Layout 7 1 Main Board 715G2904 2 2 ...

Page 27: ...18 5 LCD Color Monitor HCL HCMELWBT11 27 ...

Page 28: ...18 5 LCD Color Monitor HCL HCMELWBT11 28 7 2 Power Board 715G2852 2 ...

Page 29: ...18 5 LCD Color Monitor HCL HCMELWBT11 29 7 3 Key Board 715G2835 1 ...

Page 30: ...olor Analyzer 7 Service Manual 8 User Manual 8 2 Trouble Shooting 8 2 1 Main Board No power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100V 240V is normal Reinsert or check the power section Check if X401 oscillate waveforms are normal Check C423 1 8V U404 Vout 3 3V OK OK NG NG NG Check CN404 or replace Q409 Q410 and U404 Replace U401 Replace...

Page 31: ...al Replace U401 Replace X401 Check C423 1 8V U404 Vout 3 3V Check Correspondent component Replace U401 Check X401 oscillate waveform is normal Check CN404 or replace Q409 Q410 and U404 OK OK OK OK OK NG NG NG NG Check reset circuit of U401 is normal Check HS VS from CN101 is normal Replace X401 Check Correspondent component NG NG OK ...

Page 32: ...en Measure Q404 base is low level X401 oscillate waveform is normal Check CN403 is solder and Q405 is OK Check Correspondent component Replace PANEL Check Correspondent component Replace U401 OK OK OK Replace X401 OK NG NG NG NG Check reset circuit of U401 is normal ...

Page 33: ...7 Check bridge rectified circuit and F901 circuit Check start voltage for the pin3 of IC901 Check R904 R932 R933 Change IC901 NG Check the auxiliary voltage is bigger than 10V and smaller than 20V 1 Check IC901 2 Check D900 D901 circuit OK OK NG Check Q903 Q901 IC902 IC903 ZD921 ZD922 OK Check IC901 pin8 PWM wave OK Check IC901 NG OK NG NG ...

Page 34: ...eck main board NG OK Check IC801 PIN12 12V NG OK Change ON OFF circuit Check IC801 PIN5 have triangle wave NG OK Change IC801 Check IC801 PIN9 PIN10 PWM wave NG OK Check IC801 Check Q802 Drain wave NG Check the output of T801 Check Q801 Q804 Q811 Q812 Check connecter lamp feedback and protect circuit OK NG Change T801 OK ...

Page 35: ...35 8 2 3 Key Board OSD is unstable or not working Is Key Pad Board connecting normally Connect Key Pad Board Is Button Switch normally Replace Button Switch OK NG NG Is Key Pad Board Normally Replace Key Pad Board OK NG OK Check Main Board ...

Page 36: ...h up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 30 y 329 30 Y 150cd m2 4 Adjust the RED on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN on factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE on factory window until chroma 7120 indicator reached the value B 100 7 Repeat above procedure ite...

Page 37: ...th press MODE button 2 Switch the MEM channel to Channel 10 with up or down arrow on chroma 7120 3 The LCD indicator on chroma 7120 will show x 313 30 y 329 30 Y 150cd m2 4 Adjust the RED on factory window until chroma 7120 indicator reached the value R 100 5 Adjust the GREEN on factory window until chroma 7120 indicator reached the value G 100 6 Adjust the BLUE of on factory window until chroma 7...

Page 38: ...18 5 LCD Color Monitor HCL HCMELWBT11 38 10 Monitor Exploded View ...

Page 39: ...Y 015F0067510 SUPPORT 015F0067020 ACTIVE PLATE 004F061210T 00 METAL WASHERS12 0 8 00 1 6H 004F061210T 01 METAL WASHERS12 0 4 72 1 0T 004F061210M 00 METAL WASHERS12 0 6 03 4 70H 004F0612052 00 METAL WASHER 028F0620090 SHAFT 0M1F3050106 SCREW 002F0605100 SCREW NUTS M6 0 P1 0 WHITE E750 750GLC185WA211N000 PANEL CLAA185WA02 000 TW CPT E750 750GLC185WA212N000 PANEL CLAA185WA02 000 WJ CPT 2nd source E75...

Page 40: ...ST CHIPR 100 OHM 5 1 16W R103 061G0402101 RST CHIPR 100 OHM 5 1 16W R104 061G0402101 RST CHIPR 100 OHM 5 1 16W R108 061G0402101 RST CHIPR 100 OHM 5 1 16W R110 061G0402101 RST CHIPR 100 OHM 5 1 16W R111 061G0402101 RST CHIPR 100 OHM 5 1 16W R113 061G0402101 RST CHIPR 100 OHM 5 1 16W R114 061G0402101 RST CHIPR 100 OHM 5 1 16W R115 061G0402101 RST CHIPR 100 OHM 5 1 16W R117 061G0402101 RST CHIPR 100 ...

Page 41: ...61G1206331 RST CHIPR 330 OHM 5 1 4W C401 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C403 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C404 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C406 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C407 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C409 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C413 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C414 065G0402104 15 MLCC 0402 0 1UF K 16V ...

Page 42: ... 100UF M 25V 6 3 11 C427 067G 3151014KB EC 100UF M 25V 6 3 11 C410 067G 3151007KB EC 10UF M 50V 5 11 709G2904 QA001 CONSUMPTIVE ASS Y KEPC7QAK KEY BOARD CN001 033G3802 6H WAFER 6P RIGHT ANGLE PITCH 2 0 SW005 077G 600 1GCJ TACT SWITCH TSPB 2 NP SW004 077G 600 1GCJ TACT SWITCH TSPB 2 NP SW003 077G 600 1GCJ TACT SWITCH TSPB 2 NP SW002 077G 600 1GCJ TACT SWITCH TSPB 2 NP SW001 077G 600 1GCJ TACT SWITC...

Page 43: ...KV CAP 105 680UF M 25V C917 067G215D6814KV CAP 105 680UF M 25V C939 067G215D8214KV EC 105 CAP 820UF M 25V C940 067G215S1024KV EC 105 CAP 1000UF M 25V C921 067G215S4713KV EC 105 CAP 470UF M 16V C915 067G215S4713KV EC 105 CAP 470UF M 16V L903 073G 253 91 V1 CHOKE COIL 1 1UH L904 073G 253 91 V1 CHOKE COIL 1 1UH L905 073G 253 91 V1 CHOKE COIL 1 1UH L901 073L 174 26H2G INE FILTER 27MH CN901 087G 501 32...

Page 44: ...926 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R827 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R824 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R818 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R802 061G0603100 2F RST CHIPR 10K OHM 1 1 10W R807 061G0603100 2F RST CHIPR 10K OHM 1 1 10W R808 061G0603100 2F RST CHIPR 10K OHM 1 1 10W R817 061G0603100 2F RST CHIPR 10K OHM 1 1 10W R832 061G0603100 2F RST CHIPR 10K OHM...

Page 45: ...R 470 OHM 5 1 8W R837 061G0805473 RST CHIPR 47K OHM 5 1 8W R810 061G0805510 2F RST CHIPR 51K OHM 1 1 8W JR801 061G1206000 RST CHIP MAX 0R05 1 4W JR901 061G1206000 RST CHIP MAX 0R05 1 4W F904 061G1206000 RST CHIP MAX 0R05 1 4W F801 061G1206000 4 RST CHIP MAX 0R05 1 4W F905 061G1206000 4 RST CHIP MAX 0R05 1 4W R910 061G1206100 RST CHIPR 10 OHM 5 1 4W R923 061G1206101 RST CHIPR 100 OHM 5 1 4W R922 06...

Page 46: ...5 0 1UF K 50V X7R C824 065G0805104 32 CAP CHIP 0805 0 1UF K 50V X7R C822 065G080510522K T CAP CHIP 0805 1UF K 25V X7R C608 065G080510522K T CAP CHIP 0805 1UF K 25V X7R C609 065G080510522K T CAP CHIP 0805 1UF K 25V X7R C838 065G0805152 31 1 5NF 50V C839 065G0805152 31 1 5NF 50V C820 065G080522131G CAP CHIP 0805 220PF G 50V NPO C845 065G0805225 12 CAP CHIP 0805 2 2UF K 16V X7R C909 065G0805471 21 CA...

Page 47: ...805 095G 90 23 JUMPER WIRE J804 095G 90 23 JUMPER WIRE J803 095G 90 23 JUMPER WIRE J802 095G 90 23 JUMPER WIRE J902 095G 90 23 JUMPER WIRE J801 095G 90 23 JUMPER WIRE J904 095G 90 23 JUMPER WIRE J605 095G 90 23 JUMPER WIRE J602 095G 90 23 JUMPER WIRE J601 095G 90 23 JUMPER WIRE J914 095G 90 23 JUMPER WIRE J912 095G 90 23 JUMPER WIRE J911 095G 90 23 JUMPER WIRE J910 095G 90 23 JUMPER WIRE J909 095G...

Page 48: ...N743 4A RATING LABEL Q40G0002743 3A POP LABEL Q40G0002743 5A STICKER LABEL FOR CARTON Q44G8002101 Q185W EPS Q44G8002201 Q185W EPS Q44G8002743 1A 18 5 LCD HCL CARTON Q45G 77 5 PE PACKING Q45G 88607 28 PE BAG FOR CLAMP STAND Q45G 88607 34 PE BAG FOR BASE Q45G 88609 88 EPE COVER Q50G 4 10 TIE Q52G6020142 PROTECT FILM 041G780061537A TCO 03 CARD 089G 17356C554 AUDIO CABLE Q41G9002743 5A MANUAL Q45G 76 ...

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