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22" 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 Instruction............................................6
3.1 General Instructions.........................................6
3.2 Control Button......................................................6
3.3 Adjusting the Picture..........................................8
4. Input/Output Specification.......................................11
4.1 Input Signal Connector.............................................11
4.2 Factory Preset Display Modes....................................13
4.3 Power supply features.........................................13
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4.4 Panel Specification.................................................14
5. Block Diagram..........................................................16
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..........................................16
5.2 Electrical Block Diagram....................................18
6.Schematic......................................................20
6.1 Main Board............................................................20
6.2 Power Board........................................................24
7. PCB Layout...........................................................27
7.1 Main Board...........................................................27
7.2 Power Board.........................................................29
7.3 Key Board......................................................30
8. Maintainability......................................................31
8.1 Equipments and Tools Requirement.......................31
8.2 Trouble Shooting..................................................32
9. White-Balance, Luminance adjustment.............38
10. Monitor Exploded View........................................40
11. BOM List.................................................................41
SAFETY NOTICE
1
Adelpia TGL2240A
Horizontal Frequency
30KHz - 80KHz
Page
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Summary of Contents for Adelpia TGL2240A
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Page 1: Table Of Contents
22” LCD Color Monitor Adelpia TGL2240A Service Service Service Horizontal Frequency 30KHz – 80KHz TABLE OF CONTENTS Description Page Description Page 5.1 Software Flow Chart….……………………..…..16 Table Of Contents..……..……......…..1 5.2 Electrical Block Diagram……..……………..…..…18 Revision List.….....……......……..2 6.Schematic……………........…20 Important Safety Notice.…………....……..3 6.1 Main Board.……..……..........20 1. -
Page 2: Revision List
22” LCD Color Monitor Adelpia TGL2240A Revision List Revision Date Revision History TPV Model Aug.-18-08 Initial Release TCRMMTNFX2UQHN... -
Page 3: Important Safety Notice
22” LCD Color Monitor Adelpia TGL2240A 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
22” LCD Color Monitor Adelpia TGL2240A 1. Monitor Specifications... -
Page 5: Lcd Monitor Description
22” LCD Color Monitor Adelpia TGL2240A 2. LCD Monitor Description The LCD MONITOR will contain a main board, a power board and a key 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 and the main board chips each voltage. -
Page 6: Operation Instruction
22” LCD Color Monitor Adelpia TGL2240A 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control buttons are located in the bottom of the bezel. By changing these settings, the picture can be adjusted to your personal preferences. - Page 7 22” LCD Color Monitor Adelpia TGL2240A...
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Page 8: Adjusting The Picture
22” LCD Color Monitor Adelpia TGL2240A 3.3 Adjusting the Picture... - Page 9 22” LCD Color Monitor Adelpia TGL2240A...
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Page 11: Input/Output Specification
22” LCD Color Monitor Adelpia TGL2240A 4.Input/Output Specification 4.1 Input Signal Connector... - Page 12 22” LCD Color Monitor Adelpia TGL2240A...
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Page 13: Factory Preset Display Modes
22” LCD Color Monitor Adelpia TGL2240A 4.2 Preset operating modes 4.3 Power Supply Features • A/C Line voltage range: 90 V - 264 V • A/C Line frequency range: 50 Hz - 60Hz • Current: 1.5 A max. at 100V/1.5A max. at 240V •... -
Page 14: Panel Specification
22” LCD Color Monitor Adelpia TGL2240A 4.4 Panel Specification M220Z1-L03 OVERVIEW The M220Z1-L03 model is a 22 inch wide TFT-LCD module with a 4-CCFL Backlight Unit and a 30-pin 2ch-LVDS interface. This module supports 1680 x 1050 WSXGA (16:10 wide screen) mode and displays up to 16.7 millions colors. - Page 15 22” LCD Color Monitor Adelpia TGL2240A Optical Characteristics...
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Page 16: Block Diagram
22” LCD Color Monitor Adelpia TGL2240A 5. Block Diagram 5.1 Software Flow Chart... - Page 17 22” LCD Color Monitor Adelpia TGL2240A 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.
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Page 18: Electrical Block Diagram
22” LCD Color Monitor Adelpia TGL2240A 5.2 Electrical Block Diagram 5.2.1 Scaler Board Block Diagram Crystal LCD Interface (X401) (CN301) 14.31818MHZ Key Board U401 Control Scalar IC TSUMO58GHL-LF (CN402) (Include MCU, ADC, OSD) · H sync V sync D-Sub Connector... - Page 19 22” LCD Color Monitor Adelpia TGL2240A 5.2.2 Power Board Block Diagram AC input Rectifier Bridge Transformer EMI filter Diodes Rectifier and Filter CN902 Start Circuit R904, R905, R906 Feedback ON/OFF Control IC circuit MOSFET OSC and Q805, Q806 Output Convert...
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Page 20: Schematic
22” LCD Color Monitor Adelpia TGL2240A 6. Schematic 6.1 Main Board... - Page 21 22” LCD Color Monitor Adelpia TGL2240A...
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Page 24: Power Board
22” LCD Color Monitor Adelpia TGL2240A 6.2 Power Board... - Page 25 22” LCD Color Monitor Adelpia TGL2240A...
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Page 27: Pcb Layout
22” LCD Color Monitor Adelpia TGL2240A 7. PCB Layout 7.1 Main Board... - Page 28 22” LCD Color Monitor Adelpia TGL2240A...
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Page 29: Power Board
22” LCD Color Monitor Adelpia TGL2240A 7.2 Power Board... -
Page 30: Key Board
22” LCD Color Monitor Adelpia TGL2240A 7.3 Key board... -
Page 31: Maintainability
22” LCD Color Monitor Adelpia TGL2240A 8. Maintainability 8.1 Equipment and Tools Requirement 1、Voltmeter. 2.、Oscilloscope. 3、Pattern Generator. 4、DDC Tool with a Compatible Computer. 5、Alignment Tool 6、LCD Color Analyzer. 7、Service Manual. 8、User Manual... -
Page 32: Trouble Shooting
22” LCD Color Monitor Adelpia TGL2240A 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 100-240 is normal Reinsert or check the power sect Measure U701 Pin2=3.3V,... - Page 33 22” LCD Color Monitor Adelpia TGL2240A No picture (LED orange) No picture The button if under X401 oscillate Replace X401 control waveform is normal Check Correspondent Check reset circuit of component U401 is normal Measure U701 Pin2=3.3V, C704(+)=1.8V Replace U401...
- Page 34 22” LCD Color Monitor Adelpia TGL2240A White screen White screen Measure Q301 base X401 oscillate waveform is normal is low level? Replace X401 Check CN301 is solder Check reset circuit of and Q301, Q302 is OK? U401 is normal Check Correspondent Check Correspondent component.
- Page 35 22” LCD Color Monitor Adelpia TGL2240A 8.2.2 Power Board 1) No power Check CN902 PIN3, 4 = 5V Check AC line voltage 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit...
- Page 36 22” LCD Color Monitor Adelpia TGL2240A 2.) No Backlight Check if the input voltage of inverter part is 16V Check adapter part Check ON/OFF signal Check Interface board or main board Check U801 PIN12=16V Check ON/OFF Check U801 PIN5 have triangle wave...
- Page 37 22” LCD Color Monitor Adelpia TGL2240A 8.2.3 Key Board OSD is unstable or not working Connect Key Pad Board Is Key Pad Board connecting normally? Replace Button Switch Is Button Switch normally? Is K Replace Key Pad Board y Pad Board Normally?
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Page 38: White-Balance, Luminance Adjustment
22” LCD Color Monitor Adelpia TGL2240A 9. White-Balance, Luminance adjustment Approximately 30 minutes should be allowed for warm up before proceeding White-Balance adjustment. 1. How to do the Chroma-7120 MEM .Channel setting A. Reference to chroma 7120 user guide B. Use “SC” key and “NEXT” key to modify xyY value and use “ID” key to modify the TEXT description Following is the procedure to do white-balance adjust 2. - Page 39 22” LCD Color Monitor Adelpia TGL2240A 7. Repeat above procedure (item 4, 5, 6) until chroma 7120 RGB value meet the tolerance =100±2 C. Adjust 6500K color-temperature 1. Switch the chroma-7120 to 5400K channel. 2. The chroma 7120 will show x = 313±25, y = 329 ±25, Y = 200 cd/m 3.
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Page 40: Monitor Exploded View
22” LCD Color Monitor Adelpia TGL2240A 10. Monitor Exploded View... -
Page 41: Bom List
22” LCD Color Monitor Adelpia TGL2240A 11. BOM List TCRMMTNFX2UQHN Location TPV Part No. Description Remark 050G 600 1 W WHITE STRAP 050G 600 2 HANDLE1 050G 600 3 HANDLE2 052G 1150 C INSULATING TAPE 052G 1185 MIDDLE TAPE 052G... - Page 42 22” LCD Color Monitor Adelpia TGL2240A R708 061G152M159 64 1.5 OHM 2W 5% MOF C419 067G 3151007KV ELCAP 10UF M 50V 105℃ KINGNICHI C402 067G 3151007KV ELCAP 10UF M 50V 105℃ KINGNICHI C305 067G 3151014KV EC 105℃ CAP 100uF M 25V...
- Page 43 22” LCD Color Monitor Adelpia TGL2240A R117 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R118 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R119 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R409 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R415 061G0402101...
- Page 44 22” LCD Color Monitor Adelpia TGL2240A R302 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R138 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R137 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R125 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W R124 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W...
- Page 45 22” LCD Color Monitor Adelpia TGL2240A C433 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C434 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C435 065G0402104 15 MLCC 0402 0.1UF K 16V X5R C701 065G0402104 15 MLCC 0402 0.1UF K 16V X5R...
- Page 46 22” LCD Color Monitor Adelpia TGL2240A D108 093G 60505 DIO SIG SM BAT54C(PHSE)R ZD105 093G 39GA01 T RLZ5.6B ZD104 093G 39GA01 T RLZ5.6B D701 093G3004 3 SM340A 715G2883 1 MAIN PCB FR-4 D/S 67X80MM KEPC7AC3 KEY G2836-D-X-X-3-080201 CN001 033G3802 6H WAFER 6P RIGHT ANGLE PITCH 2.0...
- Page 47 22” LCD Color Monitor Adelpia TGL2240A C903 063G107K474 TS CAP X2 0.47UF K 275VAC C801 065G 3J1806ET 18PF 5% SL3KV TDK C812 065G 3J1806ET 18PF 5% SL3KV TDK C825 065G 3J1806ET 18PF 5% SL3KV TDK C826 065G 3J1806ET 18PF 5% SL3KV TDK...
- Page 48 22” LCD Color Monitor Adelpia TGL2240A Q811 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q810 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q807 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q803 057G 417 4 PMBS3904/PHILIPS-SMT(04) Q805 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q806 057G 417 6 PMBS3906/PHILIPS-SMT(06) Q808 057G 759 2...
- Page 49 22” LCD Color Monitor Adelpia TGL2240A R842 061G0603470 2F RST CHIPR 47 KOHM +-1% 1/10W R822 061G0603473 RST CHIPR 47 KOHM +-5% 1/10W R820 061G0603564 RST CHIPR 560 KOHM +-5% 1/10W R845 061G0603680 RST CHIPR 68 OHM +-5% 1/10W R846...
- Page 50 22” LCD Color Monitor Adelpia TGL2240A R910 061G1206100 RST CHIPR 10 OHM +-5% 1/4W R962 061G1206101 RST CHIPR 100 OHM +-5% 1/4W R961 061G1206101 RST CHIPR 100 OHM +-5% 1/4W R935 061G1206101 RST CHIPR 100 OHM +-5% 1/4W R920 061G1206101...
- Page 51 22” LCD Color Monitor Adelpia TGL2240A C821 065G0805152 32 CHIP 1500PF 50V X7R 0805 C816 065G0805152 32 CHIP 1500PF 50V X7R 0805 C803 065G0805152 32 CHIP 1500PF 50V X7R 0805 C809 065G0805221 31 CAP CHIP 0805 220PF J 50V NPO...
- Page 52 Q33G0171 1 1C0100 LENS Q40G 22N972 8A RATING LABEL Q40G0002972 1C Box Sealing label Q40G000297212A Energy star label black Q40G000297219A POP LABEL FOR TGL2240A Q44GC034101 EPS(L) Q44GC034201 EPS(R) Q44GC034972 2A 22 LCD CARTON Q45G 77 5 PE PACKING Q45G 88606 R...
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