Table of Contents
Advertisement
19"W LCD Color Monitor
Service
Service
Service
Description
Table Of Contents...................................................1
Revision List..........................................................2
Important Safety Notice............................................ 3
1. Monitor Specification..................................................4
2. LCD Monitor Description........................................5
3. Operation Instructions..................................................6
3.1. General Instructions..................................................6
3.2. Control Button....................................................6
3.3 Adjusting the Picture..................................................7
4. Input/Output Specification..........................................9
4.1. Input Signal Connector............................................9
4.2. Factory Preset Display Modes..................................9
4.3. Panel Specification...............................................10
5. Block Diagram............................................................13
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
TABLE OF CONTENTS
Page Description
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
7. PCB Layout...........................................................25
7.1. Main Board.........................................................25
7.2. Power Board........................................................26
8. Maintainability........................................................29
8.1.Equipments and Tools Requirement......................29
8.2.Trouble Shooting.................................................30
9. White-Balance, Luminance adjustment.................35
10. Monitor Exploded View....................................37
11. BOM List...............................................................38
SAFETY NOTICE
1
HCL HCM9LWAN21
Horizontal Frequency
30-83 kHz
Page
Advertisement
Table of Contents
Related Manuals for HCL HCM9LWAN21
Summary of Contents for HCL HCM9LWAN21
-
Page 1: Table Of Contents
19"W LCD Color Monitor HCL HCM9LWAN21 Service Service Service Horizontal Frequency 30-83 kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents…………………………………………...1 5.1 Software Flow Chart……………………….……….13 Revision List………………………………………………..2 5.2.Electrical Block Diagram………………………..15 Important Safety Notice.……......……..3 6. Schematic……………..........17 1. Monitor Specification......…………..4 6.1 Main Board..………..........17... -
Page 2: Revision List
19"W LCD Color Monitor HCL HCM9LWAN21 Revision List Version Date Revision History TPV Model Name Nov.-12-08 Initial release T973RDNCWCKLNN... -
Page 3: Important Safety Notice
19"W LCD Color Monitor HCL HCM9LWAN21 Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. -
Page 4: Monitor Specification
19"W LCD Color Monitor HCL HCM9LWAN21 1. Monitor Specification Driving system TFT Color LCD Viewable Image Size 481mm diagonal LCD Panel Pixel pitch 0.2835mm( H ) × 0.2835mm( V ) Video R,G,B Analog Interface Separate Sync. H/V TTL Input H-Frequency 30kHz –... -
Page 5: Lcd Monitor Description
19"W LCD Color Monitor HCL HCM9LWAN21 2. LCD Monitor Description The LCD Monitor will contain a main board, an adapter board and an inverter 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. -
Page 6: Operation Instructions
19"W LCD Color Monitor HCL HCM9LWAN21 3. Operation Instructions 3.1 General 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. -
Page 7: Adjusting The Picture
19"W LCD Color Monitor HCL HCM9LWAN21 power button to turn the monitor on. To un-lock the OSD - press and hold the MENU button while the monitor is off and then press power button to turn the monitor on. 3.3 Adjusting the Picture •... - Page 8 19"W LCD Color Monitor HCL HCM9LWAN21 Main Main Menu Sub Menu Menu Sub Menu Item Description Item Icon Icon Warm Recall Warm Color Temperature from EEPROM. Cool Recall Cool Color Temperature from EEPROM. sRGB Recall sRGB Temperature from EEPROM. Color Temp.
-
Page 9: Input/Output Specification
19"W LCD Color Monitor HCL HCM9LWAN21 4. Input/Output Specification 4.1 Input Signal Connector Pin No. Description Pi N No. Description Green Detect Cable Blue Ground Ground DDC-Serial Data Ground H-Sync R- Ground V-Sync G- Ground DDC-Serial Clock B- Ground 15 - Pin Color Display Signal Cable 4.2 Factory Preset Display Modes... -
Page 10: Panel Specification
19"W LCD Color Monitor HCL HCM9LWAN21 4.3. Panel Specification 4.3.1 General Feature... - Page 11 19"W LCD Color Monitor HCL HCM9LWAN21 4.3.2 Optical Characteristics...
- Page 12 19"W LCD Color Monitor HCL HCM9LWAN21 4.3.3 Electrical Characteristics TFT LCD Module Backlight Unit...
-
Page 13: Block Diagram
19"W LCD Color Monitor HCL HCM9LWAN21 5. Block Diagram 5.1 Software Flow Chart... - Page 14 19"W LCD Color Monitor HCL HCM9LWAN21 Remark: 1) MCU initialize. 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.
-
Page 15: Electrical Block Diagram
19"W LCD Color Monitor HCL HCM9LWAN21 5.2 Electrical Block Diagram Main Board Panel Interface (CN601) Scalar RTD2025L MCU RTD2120L (Include ADC, OSD) (U401) (U501) H sync V sync Crystal D-Sub Connector 24MHZ (CN301) (X401) - Page 16 19"W LCD Color Monitor HCL HCM9LWAN21 Power Board AC input Inverter 100V~240V Output Transformer VEMI filter Rectifier Circuit Rectifier Power Switching IC Power Supply PWM Control IC Sense Resistor Sampling Photo Couple Resonance NET Transformer High Voltage Output Switching MOS...
-
Page 17: Schematic
19"W LCD Color Monitor HCL HCM9LWAN21 6. Schematic 6.1 Main Board 715G2507 1 2 MVCC FB202 CN201 CMVCC BKLT-EN BKLT-VBRI FB201 VCC3 DIM# U201 VOUT CMVCC 120OHM CMVCC C202 C204 AP1117E33LA C205 C203 100uF 16V CONN Back light 0.1uF/16V 0.1uF/16V Dimming(0.5V~3V) - Page 18 19"W LCD Color Monitor HCL HCM9LWAN21 DSUB_V R302 0R05 1/16W R301 100R 1/16W 5% RTD_H R303 100R 1/16W 5% RTD_V R304 R305 C302 C303 ZD302 ZD303 2K2 1/16W 5% FB302 C304 UDZS5.6B UDZS5.6B 2K2 1/16W 5% 33pF 33pF R306 360R OHM 1/16W 5%...
- Page 19 19"W LCD Color Monitor HCL HCM9LWAN21 150 OHM DVI_5V DSUB_5V FB401 CMVCC D402 BAV70 D401 CMVCC MCU_VCC_S MCU_VCC MCU_VCC D403 Q401 PMBS3904 MCU_VCC_S C404 R405 R406 R407 NC/0.1uF/16V C402 LL4148 R402 C412 1uF 10V 1K 1/16W 5% R403 1uF 10V U403 3.9K OHM 1/16W...
- Page 20 19"W LCD Color Monitor HCL HCM9LWAN21 1.8AVCC R1.8DVCC 150 OHM FB501 Q501 VCC3 KN2907AS Q502 R507 3.3 OHM 2W FB503 C507 KN2907AS 120OHM C506 0.1uF/16V C505 C501 0.1uF/16V C502 0.1uF/16V 0.1uF/16V 22uF50V DGND VCC3 TMDS_VDD FB502 120OHM C503 0.1uF/16V U501...
- Page 21 19"W LCD Color Monitor HCL HCM9LWAN21 CN601 LVDS_O[0..9] RXO0- LVDS_O0 RXO0- RXO0+ LVDS_O1 RXO0+ RXO1- LVDS_O2 RXO1- RXO1+ LVDS_O3 RXO1+ RXO2- LVDS_O4 RXO2- RXO2+ LVDS_O5 RXO2+ RXOC- LVDS_O6 RXOC- RXOC+ LVDS_O7 RXOC+ RXO3- LVDS_O8 RXO3- RXO3+ LVDS_O9 RXO3+ RXE0- LVDS_E[0..9]...
-
Page 22: Power Board
19"W LCD Color Monitor HCL HCM9LWAN21 6.2 Power Board Inverter Board 715G2605 1 PT801 C802 CN831 5pF/3KV R834 CONN +12V C803 C801 5pF/3KV R835 10pF/6KV R831 C820 C821 R822 R823 750 100K_1% 470uF/25V R824 C838 24:24:2400 C811 270pF R836 15K_1%... - Page 23 19"W LCD Color Monitor HCL HCM9LWAN21 L103 +12V BEAD U101 +12V CN101 F101 L101 L102 S1-8050SD OUTPUT 120uf 0Ω 1/4W R102 BEAD JACK 88L304 1S R105 0Ω 1/8W C101 C102 R104 220uF 220uF C108 D101 C103 0.1uF/25V 470uF/16V DIODE C110 0.1uF/25V...
- Page 24 19"W LCD Color Monitor HCL HCM9LWAN21 ADAPTER BOARD 715G 901 1 8 R923 47 OHM 1/4W R925 LED1 R922 4K7 1/4W DIODE C910 D904 C923 SRF20100C 0.001uF 100pF500V L903 T901 3.5uH +12V R903 C905 620K OHM 1/4W 1500pF/1KV R905 R906...
-
Page 25: Pcb Layout
19"W LCD Color Monitor HCL HCM9LWAN21 7. PCB Layout 7.1 Main Board 715G2507 1 2... -
Page 26: Power Board
19"W LCD Color Monitor HCL HCM9LWAN21 7.2 Power Board Inverter Board 715G2605 1... - Page 27 19"W LCD Color Monitor HCL HCM9LWAN21 ADAPTER BOARD 715G 901 1 8...
- Page 28 19"W LCD Color Monitor HCL HCM9LWAN21...
-
Page 29: Maintainability
19"W LCD Color Monitor HCL HCM9LWAN21 8. Maintainability 8.1 Equipments and Tools Requirement 1. Multi-meter. 2. Oscilloscope. 3. Pattern Generator. 4. DDC Tool with and Compatible Computer. 5. Alignment Tool. 6. LCD Color Analyzer. 7. Service Manual. 8. User Manual. -
Page 30: Trouble Shooting
19"W LCD Color Monitor HCL HCM9LWAN21 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... - Page 31 19"W LCD Color Monitor HCL HCM9LWAN21 No picture (LED orange) No picture The button if under control Replace the key button Measure CN201 PIN5=5V, U201 PIN2=3.3V Replace CN201 or U201 X401 oscillate waveform is normal Replace X401 Measures U401 is normal...
- Page 32 19"W LCD Color Monitor HCL HCM9LWAN21 White screen White screen Measure Q602 base X401 oscillate waveform is normal is low level? Replace X401 Check Q601 is broken or Check reset circuit of CN601 solder? U401 is normal Check Correspondent component.
- Page 33 19"W LCD Color Monitor HCL HCM9LWAN21 8.2.2 Power Board No power Check L903 = 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C904 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin3 of IC901...
- Page 34 19"W LCD Color Monitor HCL HCM9LWAN21 No backlight Check the input voltage of 12V Check adapter and F101 Check ON/OFF signal Check Interface board or main board Check U811 PIN2=12V Change on/off circuit Check U811 PIN13 have triangle wave Change U811...
-
Page 35: White-Balance, Luminance Adjustment
19"W LCD Color Monitor HCL HCM9LWAN21 9. White- Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. 1. How to setting MEM channel you can reference to chroma 7120 user guide or simple use “ SC” key and “... - Page 36 19"W LCD Color Monitor HCL HCM9LWAN21 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 reachedthe value G=100 6. Adjust the BLUE of on factory window until chroma 7120 indicator reached the value B=100 7.
-
Page 37: Monitor Exploded View
19"W LCD Color Monitor HCL HCM9LWAN21 10. Monitor Exploded View Description Description MAINFRAME BEZEL(L9W05-A2) THERMAL PAD REAR COVER RUBBER PANEL-SIDE-BRACKET PANEL HINGE BRACKET MAIN BOARD HINGE INVERTER BOARD STAND SHIELD CLAMP MYLAR BASE MYLAR RUBBER FOOT... -
Page 38: Bom List
19"W LCD Color Monitor HCL HCM9LWAN21 11. BOM List T973RDNCWCKLNN Location Part No. Description Remark 002G6014 1 SCREW 012G6204 1 RUBBER 012G6300 11 RUBBER 040G 581743 1A LOGO LABEL 044G3231 15 EVA WASHER 044G3952 1 EPS(L) 044G3952 2 EPS(R) 050G 600 2... - Page 39 19"W LCD Color Monitor HCL HCM9LWAN21 ADPC1260A5P ADAPTER BOARD 040G 45762412B CBPC LABEL 019G6005 1 SPRING TIE 033G6007 1 LENS 040G 154501 1 HI-POT GND LABEL 045G 88525 E PE BAG P051 051G 6 4500 GLUE_RTV CONDUCTIVE TAPE 55MM *45MM...
- Page 40 19"W LCD Color Monitor HCL HCM9LWAN21 COPPER MANGANESE WIRE CM 1.2MM 8 095G 90 26 M OHM 095G 205430322 WIRE HARNESS 0M1G 330 8120 SCREW 42-D000887 705GQ857015 Q901 ASS'Y 051G 200 1 OIL FOR DISAPPEAR Q901 057G 667515 FET FQPF7N65C FAIRCHILD...
- Page 41 19"W LCD Color Monitor HCL HCM9LWAN21 R935 061G1206159 RST CHIPR 1.5 OHM +-5% 1/4W R907 061G1206204 RST CHIPR 200 KOHM +-5% 1/4W R906 061G1206204 RST CHIPR 200 KOHM +-5% 1/4W R905 061G1206204 RST CHIPR 200 KOHM +-5% 1/4W R908 061G1206204...
- Page 42 19"W LCD Color Monitor HCL HCM9LWAN21 Q40G500B615 1F RATING LABEL P051 Q51G 6 4509 GLUE_RTV P051 Q51G 6 4509 GLUE_RTV T901 S80LL17T5VG TRANSFORMER GROUPWARE 071FPQ26107 02 MAGNETIC CORE PQ26/22.5 A564 W33G6045 B T 30 TOP COVER W33G6046 B T COVER...
- Page 43 19"W LCD Color Monitor HCL HCM9LWAN21 R433 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R432 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R430 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R311 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R303 061G0402101...
- Page 44 19"W LCD Color Monitor HCL HCM9LWAN21 R412 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R413 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R414 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R451 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R605 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W...
- Page 45 19"W LCD Color Monitor HCL HCM9LWAN21 C304 065G0402473 12 CHIP 0.047UF 16V X7R C301 065G0402473 12 CHIP 0.047UF 16V X7R C310 065G0402509 31 CHIP 5PF 50V NPO C308 065G0402509 31 CHIP 5PF 50V NPO C305 065G0402509 31 CHIP 5PF 50V NPO...
- Page 46 19"W LCD Color Monitor HCL HCM9LWAN21 C809 065G 3J5096ET 5PF 5% SL 3KV C802 065G 3J5096ET 5PF 5% SL 3KV C810 065G 3J5096ET 5PF 5% SL 3KV C803 065G 3J5096ET 5PF 5% SL 3KV C806 065G 6J1006ET 10PF 5% SL 6KV...
- Page 47 19"W LCD Color Monitor HCL HCM9LWAN21 R853 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R807 061G0805103 RST CHIPR 10K OHM +-5% 1/8W R872 061G0805104 RST CHIPR 100K OHM +-5% 1/8W R819 061G0805105 RST CHIPR 1M OHM +-5% 1/8W R836 061G0805150 2F...
- Page 48 19"W LCD Color Monitor HCL HCM9LWAN21 C865 065G0805333 32 CHIP 0.033UF 50V C831 065G0805474 32 0.47UF +-10% 50V X7R C813 065G0805561 31 CHIP 560PF 50V NPO 0805 D831 093G 64 33 DIO SIG SM BAV99 (PHSE)R D851 093G 64 33...
- Page 49 Q40G 19E743 1A RATING LABEL Q40G0002743 4A POP LABEL Q40G0002743 5A STICKER LABEL FOR CARTON Q44G3933743 1A 19 LCD HCL CARTON Q45G 77 5 PE PACKING Q45G 88606 R PE BAG FOR BASE Q45G 88609 88 EPE COVER Q52G6025 13112...
Need help?
Do you have a question about the HCM9LWAN21 and is the answer not in the manual?
Questions and answers