ASI DW22MBD Service Manual Download Page 29 | Manualshive

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22" LCD Color Monitor ASI DW22MBD

29

8. Maintainability

8.1 Equipments and Tools Requirement

1. Multi-meter.

2. Oscilloscope.

3. Pattern Generator.

4. DDC Tool with an Compatible Computer.

5. Alignment Tool.

6. LCD Color Analyzer.

7. Service Manual.

8. User Manual.

All manuals and user guides at all-guides.com

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Summary of Contents for DW22MBD

Page 1: ...structions 5 3 2 Control Button 5 3 3 Adjusting the Picture 6 4 Input Output Specification 9 4 1 Input Signal Connector 9 4 2 Factory Preset Display Modes 10 4 3 Panel Specification 11 5 Block Diagram...

Page 2: ...22 LCD Color Monitor ASI DW22MBD 2 Revision List Version Date Revision History TPV Model Name A00 Nov 14 2007 Initial release TC7MMPNLAWAIDI All manuals and user guides at all guides com...

Page 3: ...60Hz Plug Play VESA DDC2BTM ON Mode 49W max Power Consumption OFF Mode 2W D Sub 15pin Input Connector DVI 24pin Analog 0 7Vp p standard 75 OHM Positive Input Video Signal Digital signal Maximum Screen...

Page 4: ...power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage Power Board Include adapter and inverter Flat Panel and CCFL backlight Main Bo...

Page 5: ...r button Power Button Press this button to switch ON OFF of monitor s power Power Indicator Green Power On mode Orange Off mode MENU ENTER Active OSD menu or function adjust confirm or Exit OSD menu w...

Page 6: ...the exit function If you want to adjust any other function repeat steps 2 3 Main Menu Item Main Menu Icon Sub Menu Item Sub Menu Description Brightness Backlight Adjustment Contrast Contrast from Digi...

Page 7: ...Disable or Enable 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 Co...

Page 8: ...onitor ASI DW22MBD 8 DDC CI Turn ON OFF DDC CI Support Reset yes or no Reset the menu to default Information Show the information of the main image and sub image source All manuals and user guides at...

Page 9: ...DDC Serial Clock 8 B Ground DVI D 24pin Connector Pin No Description Pin No Description 1 TMDS Data 2 13 TMDS Data 3 2 TMDS Data 2 14 5V Power 3 TMDS Data 2 4 Shield 15 Ground for 5V 4 TMDS Data 4 16...

Page 10: ...31 47kHz 60 0Hz VGA 640 480 37 50kHz 75 0Hz 800 600 37 879kHz 60 0Hz SVGA 800 600 46 875kHz 75 0Hz 1024 768 48 363kHz 60 0Hz 1024 768 56 476kHz 70 0Hz 1024 768 60 021kHz 75 0Hz 1024 768 48 780kHz 60 0...

Page 11: ...22 LCD Color Monitor ASI DW22MBD 11 4 3 Panel Specification 4 3 1 General Feature 4 3 2 Optical Characteristics All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 12: ...22 LCD Color Monitor ASI DW22MBD 12 4 3 3 Electrical Characteristics TFT Module Back light All manuals and user guides at all guides com...

Page 13: ...2 LCD Color Monitor ASI DW22MBD 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 All manuals and user guides at all guides com...

Page 14: ...to green color Scalar initializes 10 In standby mode 11 Update the lifetime of back light 12 Check the analog port are they re any signals coming 13 Does the scalar send out an interrupt request 14 Wa...

Page 15: ...HQ LF Include ADC OSD MCU U401 LCD Interface CN7 EEPROM M24C04 WMN6TP U403 EPR_SDA EPR_SCL Crystal 14 318MHz X401 D Sub Connector CN405 H sync V sync RGB EEPROM AF24BC02 S1 U404 DB15_SDA DB15_SCL DVI...

Page 16: ...e Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component 5V PB 18 23 B5 5 PANEL INTERFACE 5V PA 2 7 PA 8 13 ESP PA 14 19 PB 0 5 PB 6 11 GPO 0 5 OSP Vin PB 12 15 VCC3 3D on_PANE...

Page 17: ...16V C714 0 1uF 16V R701 NC R712 4K7 1 16W AUDIO_MUTE 4 VCC3 3D C709 0 1uF 16V VCC3 3 5V BL_ON R708 10K 1 16W 5V D704 SS14 R711 10K 1 16W VCC3 3 VOLUME 4 C704 0 1uF 16V C713 0 1uF 16V GND D701 GS1D on...

Page 18: ...RST 4 D416 UDZS5 6B DDCA_SCL 4 DVI5V R448 2K2 1 16W B 4 DAT0 R438 75R 1 16W D420 BAV99 3 1 2 C432 0 047uF R482 NC DAT2 R435 56 OHM 1 16W CN405 DB15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 17 16 R 4 R440 7...

Page 19: ...P LLV1P RA2N LLV0N RA3P LLV0P RA3N RLV6N CLKAP RLV6P CLKAN RLV5N CLKBP RLV5P CLKBN RLV4N BB1P RLV4P BB1N LLV6N BA3P NC BA2N NC BA2P GND GND B B G G AVDD_33 R R CK CK GND GND GND VDDC VDDP MODE VCTRL V...

Page 20: ...FB2P GPO2 VCM_PWM 4 BB2P ESP 4 DCDC_ON 4 FR0P PB 12 15 GPO0 BG2N GVOFF FG1P PA9 CKV ESP PB 6 11 BR2P PA 2 7 PB11 FR1P FG1P R4 4K7 1 16W POL1 1 FG2N GPO5 STV1 1 FG1N FG0N BSTH PB23 PA10 OE C77 10uF 25...

Page 21: ...1 2 3 4 5 6 7 8 9 10 C925 NC C924 0 1uF C908 22uF 50V 67G 2152207NT t NR901 NTCR R914 0 43 2W R943 1K 1 8W 61G0805102 070522 C932 0 001uF 65G0805102 32 DIM ON OFF D916 LL4148WP C918 680uF 25V R901 68...

Page 22: ...BS3904 R815 1 5K 1 10W 1 61G0603150 1F R823 47 KOHM 1 1 10W R831 10KOHM 1 1 8W D814 LL4148WP Q802 AM9945N T1 PF 1 2 3 4 8 7 6 5 S G S G D D D D D804 BAV99 3 1 2 D813 NC R827 100 OHM 1 1 10W R828 10K 1...

Page 23: ...T PGND LOUT NC SHUTDOWN FADE BYPASS AGND VOLUME SE BTL ROUT C106 0 47uF 16V LOUT R105 10K 1 10W 5 61G0603103 CN102 WAFER 033G3802 4 DH JF 1 2 3 4 FB102 BEAD 1 2 PWPCC42CMY1 1 22 IIYAMA Custom 4 4 Thur...

Page 24: ...22 LCD Color Monitor ASI DW22MBD 24 7 PCB Layout 7 1 Main Board All manuals and user guides at all guides com...

Page 25: ...22 LCD Color Monitor ASI DW22MBD 25 All manuals and user guides at all guides com...

Page 26: ...22 LCD Color Monitor ASI DW22MBD 26 All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 27: ...22 LCD Color Monitor ASI DW22MBD 27 7 2 Power Board All manuals and user guides at all guides com...

Page 28: ...22 LCD Color Monitor ASI DW22MBD 28 7 3 Key Board All manuals and user guides at all guides com...

Page 29: ...bility 8 1 Equipments and Tools Requirement 1 Multi meter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Service Manual 8 User Manual...

Page 30: ...ture is normal Please reinsert and make sure the AC of 100 240 is normal Measure U701 PIN2 1 8V U702 PIN2 3 3V Reinsert or check the Adapter Inverter section Measure X401 oscillate waveforms are norma...

Page 31: ...ignal cable Measure U701 PIN2 1 8V U702 PIN2 3 3V Replace U401 Measure X401 oscillate waveform is normal Replace U701 U702 OK OK OK OK NG NG Check HS VS from CN405 is normal Replace X401 Check Corresp...

Page 32: ...ow level X401 oscillate waveform is normal Check Q1 is broken or CN7 solder Check Correspondent component Replace PANEL Check Correspondent component Replace U401 OK OK OK Replace X401 OK NG NG NG NG...

Page 33: ...ctified 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 Chec...

Page 34: ...k IC801 PIN12 10 5V 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 Q803 Drain wave NG Check the output...

Page 35: ...OSD is unstable or not working Is Keypad board connecting normally Is Button Switch normally Is Keypad board normally Check main board Connect Keypad Board Replace Button Switch Replace Keypad Board...

Page 36: ...to F and press MENU key A Adjust 9300k color temperature 1 Switch the Chroma 7120 to 9300k channel 2 The chroma 7120 will show x 283 25 y 297 25 Y 180 25 cd m2 3 Switch the chroma 720 to RGB MODE wit...

Page 37: ...he value B 100 7 Repeat above procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 2 D Adjust SRGB color temperature 1 Switch the chroma 7120 to SRGB channel 2 The chroma 7120 will...

Page 38: ...22 LCD Color Monitor ASI DW22MBD 38 10 Monitor Exploded View All manuals and user guides at all guides com...

Page 39: ...47101 K22W_HINGE_BKT A33G0173 GM 1L 32 CABLE CLAMP A34G0294 GMA6B REAR COVER 22 AM1G1740 12 47 CR3 SCREW CBPC7MMPACQ3 MAIN BOARD KEPC7QF3 KEY BOARD E750 LCM220Z1M01A01 22WI PANEL PWPCC42CME1 POWER BOA...

Page 40: ...1GCJ TACT SWITCH TSPB 2 NP SW005 077G 600 1GCJ TACT SWITCH TSPB 2 NP LED001 081G 12 1F GP LED GP32032M G307 ZY 50 GND1 095G 900634 WIRE HARNESS CN001 095G8014 6D 43 HARNESS 6P 6P 150MM CN102 033G3802...

Page 41: ...223 3L ANACHIP U702 056G 585 4A AP1117E33LA U403 056G1133 32 IC M24C04 WMN6TP SO8 U404 056G1133 84 AF24BC02 S1 U405 056G1133 84 AF24BC02 S1 U402 056G1133713 IC PM25LV010A 100SCE SOIC 8 Q1 057G 417 4 P...

Page 42: ...ST CHIPR 10 KOHM 5 1 16W R457 061G0402103 RST CHIPR 10 KOHM 5 1 16W R459 061G0402103 RST CHIPR 10 KOHM 5 1 16W R425 061G0402103 RST CHIPR 10 KOHM 5 1 16W R451 061G0402103 RST CHIPR 10 KOHM 5 1 16W R46...

Page 43: ...15 MLCC 0402 0 1UF K 16V X5R C416 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C417 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C419 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C420 065G0402104 15 MLCC 0402 0 1...

Page 44: ...ER 220PF 5 50V SM C425 065G0402224A5T MLCC 0402 0 22UF K 10V X C442 065G0402330 31 33PF 50 50V NPO C438 065G0402473 12 CHIP 0 047UF 16V X7R C437 065G0402473 12 CHIP 0 047UF 16V X7R C436 065G0402473 12...

Page 45: ...093G 60257 DIODE SB1060FCT ITO 220AB BY PAN JIT 0M1G1730 8120 SCREW IC801 056G 379 22 IC TL494IDR SOIC 16 IC901 056G 379 76 IC LD7552BPS SOP 8 Q801 057G 417 4 PMBS3904 PHILIPS SMT 04 Q806 057G 417 4...

Page 46: ...061G0603430 1F RST CHIPR 4 3 KOHM 1 1 10W R863 061G0603470 2F RST CHIPR 47 KOHM 1 1 10W R823 061G0603470 2F RST CHIPR 47 KOHM 1 1 10W R802 061G0603560 2F RST CHIPR 56 KOHM 1 1 10W R851 061G0603560 2F...

Page 47: ...4W R903 061G1206684 RST CHIPR 680 KOHM 5 1 4W C110 065G0603101 31 CER1 0603 NP0 50V 100P PM5 R C111 065G0603101 31 CER1 0603 NP0 50V 100P PM5 R C807 065G0603104 22 CHIP 0 1UF 25V X7R C821 065G0603104...

Page 48: ...093G 39S 61 T DIODE RLZ16B ROHM ZD902 093G 39S 61 T DIODE RLZ16B ROHM D805 093G 64S511SEM IN4148W D806 093G 64S511SEM IN4148W D807 093G 64S511SEM IN4148W D808 093G 64S511SEM IN4148W D809 093G 64S511SE...

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