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22" LCD Color Monitor
Service
Service
Service
Table Of Contents...................................................1
Important Parts List................................................2
Revision List..........................................................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.......................................12
4.1. Input Signal Connector.........................................12
4.2. Factory Preset Display Modes................................13
4.3. Panel Specification..............................................14
5. Block Diagram............................................................16
5.1 Software Flow Chart.........................................16
5.2.Electrical Block Diagram.....................................18
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
6. Schematic.............................................................19
6.1 Main Board..........................................................19
6.2 Power Board.................................................26
6.3 Key Board.......................................................29
7. PCB Layout..............................................................30
7.1. Main Board............................................................30
7.2. Power Board...........................................................33
7.3. Key Board...............................................................36
8.Maintainability........................................................37
8.1.Equipments and Tools Requirement.........................37
8.2.Trouble Shooting.....................................................38
9. White-Balance, Luminance adjustment....................44
10. Monitor Exploded View.......................................46
11. BOM List...................................................................47
12. Different Parts List............................................60
SAFETY NOTICE
1
AOC 2230FH
Horizontal Frequency
31-83 kHz
Page
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Summary of Contents for AOC 2230FH
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Page 1: Table Of Contents
22" LCD Color Monitor AOC 2230FH Service Service Service Horizontal Frequency 31-83 kHz TABLE OF CONTENTS Description Page Description Page Table Of Contents…………………………………………...1 6. Schematic……………..........19 Important Parts List…………………………………………2 6.1 Main Board..………..........19 Revision List………………………………………………..3 6.2 Power Board………………………………………..26 1. Monitor Specification......…………..4 6.3 Key Board…………………………………...………….29 2. -
Page 2: Important Parts List
AOC 2230FH 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. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. -
Page 3: Revision List
22" LCD Color Monitor AOC 2230FH Revision List Version Date Revision History TPV Model Name Jun.-3-2008 Initial release TC8MM8NKWCA1DN Jul.-6-2008 Add new BOM TC8MM8NQWCA15N... -
Page 4: Monitor Specification
22" LCD Color Monitor AOC 2230FH 1. Monitor Specification Model number 2230Fh Driving system TFT Color LCD Viewable Image Size 558mm diagoanl Pixel pitch 0.282mm(H) x 0.282mm(V) LCD Panel Video R, G, B Analog lnterface & Digital Interface, HDMI Separate Sync. -
Page 5: Lcd Monitor Description
22" LCD Color Monitor AOC 2230FH 2. LCD Monitor Description The LCD Monitor will contain main board, power board, 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 of panel and the main board chips each voltage. -
Page 6: Operation Instruction
22" LCD Color Monitor AOC 2230FH 3. Operation Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control knobs are located at front panel of the monitor (See Figure ). By changing these settings, the picture can be adjusted to your personal preferences. - Page 7 22" LCD Color Monitor AOC 2230FH 3.2.3 Attaching Wall Mounting Arm Preparing to Install An Optional Wall Mounting Arm This monitor can be attached to a wall mounting arm you purchase separately. Disconnect power before this procedure. Follow these steps: 1.
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Page 8: Adjusting The Picture
22" LCD Color Monitor AOC 2230FH 3.3 Adjust the Picture OSD Settings • Press the Menu (Power) button to activate the OSD window. Press left, right, up, down button to navigate through the functions. Once the desired function is highlighted, press the Menu (Power) button to activate sub-menu . - Page 9 22" LCD Color Monitor AOC 2230FH Full Enhance: When "Full Enhance" is turned on, the color saturation of the entire screen is fully enriched, thus all colors become more vibrant. Nature Skin: When "Natural Skin" is turned on, the red and yellow colors are enriched automatically, thus presents human skin with more natural and truer colors.
- Page 10 22" LCD Color Monitor AOC 2230FH Game Movie Mode Movie Sports Mode Sports Gamma1 Adjust to Gamma1 Gamma Gamma2 Adjust to Gamma 2 Gamma3 Adjust to Gamma 3 Disable dynamic contrast ratio Enable dynamic contrast ratio Image Setup Adjust picture Clock to reduce...
- Page 11 22" LCD Color Monitor AOC 2230FH Contrast 0-100 Adjust Frame Contrast 0-100 Adjust Frame Hue Saturation 0-100 Adjust Frame Saturation H. position Adjust Frame horizontal Position Position V.position Adjust Frame vertical Position Bright Frame on or off Disable or Enable Bright Frame OSD Setup H.Position...
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Page 12: Input/Output Specification
22" LCD Color Monitor AOC 2230FH 4. Input/Output Specification 4.1 Input Signal Connector D-Sub mini 15pin Connector Pin Number 15-Pin Side of the Signal Cable Video-Red Video-Green Video-Blue N.C. Ground GND-R GND-G GND-B Ground N.C. DDC-Serial data H-sync V-sync DDC-Serial clock DVI-D 24pin Connector Pin No. -
Page 13: Factory Preset Display Modes
22" LCD Color Monitor AOC 2230FH 4.2 Factory Preset Display Modes Horizontal Vertical Stand Resolution Frequency(Khz) Frequency(Hz) 640×480 @60Hz 31.469 59.940 640×480 @72Hz 37.861 72.809 640×480 @75Hz 37.500 75.000 Dos-mode 720×400 @70Hz 31.469 70.087 Dos-mode 640×400 @71Hz 31.469 70.087 SVGA 800×600 @56Hz... -
Page 14: Panel Specification
22" LCD Color Monitor AOC 2230FH 4.3. Panel Specification 4.4.1 General Features 4.4.2 Display Characteristics 4.4.3 Electrical Characteristics TFT LCD Module Backlight Unit... - Page 15 22" LCD Color Monitor AOC 2230FH 4.4.4 Optical Characteristics...
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Page 16: Block Diagram
22" LCD Color Monitor AOC 2230FH 5. Block Diagram 5.1 Software Flow Chart... - Page 17 22" LCD Color Monitor AOC 2230FH 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.
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Page 18: Electrical Block Diagram
22" LCD Color Monitor AOC 2230FH 5.2 Electrical Block Diagram Main Board Panel interface D-SUB Input Scalar Audio DVI Input TSUMO58GDJ-LF (U401) HDMI Input Power... -
Page 19: Schematic
22" LCD Color Monitor AOC 2230FH 6. Schematic 6.1 Main Board TSUMU58J SCHEMATIC INPUT SCALER DVI5V DVI5V GNDR GNDR PANEL INTERFACE DDC_WP PA[0..9] DET_DVI GNDG GNDG PA[0..9] PA[0..9] DET_VGA PB[0..9] DVI_SDA GNDB GNDB PB[0..9] PB[0..9] DVI_SCL RX0+ HSY NC HSYNC... - Page 20 22" LCD Color Monitor AOC 2230FH VCC3.3 4,5,7 R101 C101 10K 1/16W 5% U101 0.1uF 16V C102 NC/AP1117D33LA CN101 100uF/16V R102 1K 1/16W 5% Adj_BACKLIGHT 5 TO252 VCC3.3 VCC3.3 ON/OFF R103 10K 1/16W 5% VCC3.3 R104 10K 1/16W 5% 4,5,7 VCC3.3 5,7...
- Page 21 22" LCD Color Monitor AOC 2230FH DB15 RED+ FB406 0R05 1/16W R454 56 OHM 1/16W C440 0.047uF RIN 5 RED- GREEN+ FB407 0R05 1/16W R455 56 OHM 1/16W C441 0.047uF GIN 5 GREEN- BLUE+ FB408 0R05 1/16W R456 56 OHM 1/16W C442 0.047uF...
- Page 22 22" LCD Color Monitor AOC 2230FH AVDD_33 VDDP VDDC AVDD_18 AVDD_MEMPLL_33 VCC3.3 VDDP VCTRL FB402 VCC3.3 FB401 AVDD_MEMPLL_33 VCC3.3 RIN0P 120 OHM GNDR RIN0M PA[0..9] C404 C405 C406 C407 C408 C409 C410 C411 GIN0P PA[0..9] 6 120 OHM C402 GNDG...
- Page 23 22" LCD Color Monitor AOC 2230FH PA[0..9] PB[0..9] PA[0..9] PB[0..9] LVB3P CN404 LVA3P LVB3M CONN LVA3M LVBCKP LVB0M RXO0- LVACKP LVBCKM LVB0P RXO0+ LVACKM LVB2P LVB1M RXO1- LVA2P LVB2M LVB1P RXO1+ LVA2M LVB1P LVB2M RXO2- LVA1P LVB1M LVB2P RXO2+ LVA1M...
- Page 24 22" LCD Color Monitor AOC 2230FH U501~U502 close to CN501 CN501 HDMI U501 RClamp0524P.TCT SHELL1 HDMI1_D2+ HDMI1_D1+ OUT1 HDMI1_D1- D2 Shield OUT2 HDMI1_D2- SHELL3 HDMI1_D1+ HDMI1_D0+ OUT3 HDMI1_D0- D1 Shield OUT4 HDMI1_D1- HDMI1_D0+ HDMI1_+5V D501 D0 Shield +5V 3,4,5 HDMI1_D0-...
- Page 25 22" LCD Color Monitor AOC 2230FH +5V_AUDIO +5V_AUDIO C602 +5V_AUDIO C603 U601 0.1uF 16V 10uF/16V U602 AULIN R602 C604 AUSCK R601 22R 1/16W 5% I2S_SCK C632 10uF/16V 7K5 1/16W 5% C635 1uF 10V HINL AUSCK VOUTL AUSDO R603 22R 1/16W 5%...
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Page 26: Power Board
22" LCD Color Monitor AOC 2230FH 6.2 Power Board D909 NC/31DQ10FC R918 L904 100 OHM 1/4W 2A(INVERTER) R919 100 OHM 1/4W +16V FB904 C912 R920 BEAD 0.001uF ZD902 100 OHM 1/4W R946 RLZ18B 150 OHM 2W C917 FB902 1206 0 ohm... - Page 27 22" LCD Color Monitor AOC 2230FH CN801 28:28:2400 Lk:260mH CONN T801 R801 0R05 1/8W C801 18pF/6KV L801 +16V NC / L R802 CN802 100R 1/8W C825 CONN 18pF/6KV R804 0R05 1/8W R805 NC/4K7 1/10W 5% R810 Q802 R808 Q801 R850...
- Page 28 22" LCD Color Monitor AOC 2230FH +5V1 +5V1 C604 R602 R603 C609 CN602 R609 IC601 NC CN601 LOUT- R604 SE/BTL LOUT- C601 VOLUME LOUT+ LIN- LOUT+ C606 ROUT+ R605 RIN- ROUT+ BYPASS ROUT- SHUTDOWN ROUT- +5V1 R611 C605 C608 R608...
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Page 29: Key Board
22" LCD Color Monitor AOC 2230FH 6.3 Key Board AUTO (2K) 1.19V LBADC1 DOWN (2K) 1.19V LBADC2 CN001 R001 0R05 1/10W 5% MENU (1K) 0.67V LBADC1 R002 2K 1/10W LBADC2 DC_POWERON LED_BLUE# LED_RED# R003 2K 1/10W R004 1K 1/10W 5%... -
Page 30: Pcb Layout
22" LCD Color Monitor AOC 2230FH 7. PCB Layout 7.1 Main Board... - Page 31 22" LCD Color Monitor AOC 2230FH...
- Page 32 22" LCD Color Monitor AOC 2230FH...
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Page 33: Power Board
22" LCD Color Monitor AOC 2230FH 7.2 Power Board... - Page 34 22" LCD Color Monitor AOC 2230FH...
- Page 35 22" LCD Color Monitor AOC 2230FH...
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Page 36: Key Board
22" LCD Color Monitor AOC 2230FH 7.3 Key Board... -
Page 37: Maintainability
22" LCD Color Monitor AOC 2230FH 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. -
Page 38: Trouble Shooting
22" LCD Color Monitor AOC 2230FH 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 Adapter/Inverter section Measure U103 PIN2=3.3V... - Page 39 22" LCD Color Monitor AOC 2230FH No Picture No picture Check the signal cable Change the signal cable Measure U103 PIN2=3.3V U104 PIN2=1.8V Replace U103, U104 Measure X401 oscillate waveform is normal Replace X401 Check HS/VS from CN402 is normal...
- Page 40 22" LCD Color Monitor AOC 2230FH White Screen White screen Measure Q106 base X401 oscillate is high level? waveform is normal Replace X401 Check Q107 is broken or Check reset circuit of CN404 solder? U401 is normal Check Correspondent Check Correspondent component.
- Page 41 22" LCD Color Monitor AOC 2230FH 8.2.2 Power Board 1) No power Check AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin3 of U901...
- Page 42 22" LCD Color Monitor AOC 2230FH 2.) No Backlight Check C811=16V ? Check adapter circuit Check ON/OFF signal Check Interface or main board Check U801 PIN12=16V Change on/off circuit Check U801 PIN5/6 have triangle wave Change U801 Check U801 PIN9/10 PWM wave...
- Page 43 22" LCD Color Monitor AOC 2230FH 8.2.3 Key Board OSD is unstable or not working Is Keypad board connecting normally? Connect Keypad Board Is Button Switch normally? Replace Button Switch Replace Keypad Board Is Keypad board normally? Check main board...
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Page 44: White-Balance, Luminance Adjustment
22" LCD Color Monitor AOC 2230FH 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. - Page 45 22" LCD Color Monitor AOC 2230FH C. Adjust 6500k color-temperature 1. Switch the chroma-7120 to 6500K channel. 2. The chroma 7120 will show x = 313 ±25, y = 329 ±25, Y = 180 ±25 cd/m 3. Switch the chroma 7120 to RGB MODE (with press “MODE” button to change) 4.
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Page 46: Monitor Exploded View
22" LCD Color Monitor AOC 2230FH 10. Monitor Exploded View... -
Page 47: Bom List
22" LCD Color Monitor AOC 2230FH 11. BOM List TC8MM8NKWCA1DN Location Part No. Description 040G 581 26704 SHIPPING LABEL 040G 58162461A EPA LABEL 041G 68508 A CONTROL CARD 044G6000 4 6B PAPER BOARD 044G6002821 1A PAPER BOARD 044GH600 1 HANDLE 2... - Page 48 22" LCD Color Monitor AOC 2230FH CN101 033G3802 10 PLUG CN404 033G801930F CH JS CONNECTOR U603 056G 616 34 IC APA2069JITUL 2.6W*2 PDIP-16 R110 061G152M339 64 CHIPR 3.3 OHM +-5% 2W C623 067G215D4713KV ELCAP 105℃ 470UF M 16V C630 067G305V229 3 EC CAP 2.2UF M 16V 5*11...
- Page 49 22" LCD Color Monitor AOC 2230FH Q401 057G 417 12 T KEC 2N3904S-RTK/PS Q101 057G 417 12 T KEC 2N3904S-RTK/PS Q406 057G 417 12 T KEC 2N3904S-RTK/PS Q106 057G 417 13 T KEC 2N3906S-RTK/PS Q402 057G 417 13 T KEC 2N3906S-RTK/PS...
- Page 50 22" LCD Color Monitor AOC 2230FH R426 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R417 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R415 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R414 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R102 061G0402102...
- Page 51 22" LCD Color Monitor AOC 2230FH R601 061G0402220 RST CHIPR 22 OHM +-5% 1/16W R603 061G0402220 RST CHIPR 22 OHM +-5% 1/16W R604 061G0402220 RST CHIPR 22 OHM +-5% 1/16W R605 061G0402220 RST CHIPR 22 OHM +-5% 1/16W R468 061G0402222 RST CHIPR 2.2 KOHM +-5% 1/16W...
- Page 52 22" LCD Color Monitor AOC 2230FH C609 065G0402102 32 1000PF +-10% 50V X7R C610 065G0402102 32 1000PF +-10% 50V X7R C615 065G0402102 32 1000PF +-10% 50V X7R C616 065G0402102 32 1000PF +-10% 50V X7R C462 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R...
- Page 53 22" LCD Color Monitor AOC 2230FH C110 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C112 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C115 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R C403 065G0402104 12 CAP CHIP 0402 0.1UF 16V X7R...
- Page 54 22" LCD Color Monitor AOC 2230FH D407 093G 64 42 P BAV70 SOT23 BY PAN JIT D429 093G 6432P LL4148 D507 093G 6432V LL4148-GSO8 D506 093G 6432V LL4148-GSO8 D428 093G 6432V LL4148-GSO8 D426 093G 6433P BAV99 D425 093G 6433P BAV99...
- Page 55 22" LCD Color Monitor AOC 2230FH 040G 45762412B CBPC LABEL CN804 033G8021 2E U INVERT CONNECTOR CN803 033G8021 2E U INVERT CONNECTOR CN802 033G8021 2E U INVERT CONNECTOR CN801 033G8021 2E U INVERT CONNECTOR IC903 056G 139 3A IC PC123Y22FZ0F...
- Page 56 22" LCD Color Monitor AOC 2230FH Q805 057G 417512 MMBT3906 Q806 057G 417512 MMBT3906 Q804 057G 600 55 P5506 HVG SO-8 Q809 057G 600 55 P5506 HVG SO-8 Q808 057G 759 2 RK7002 Q801 057G 760 4B PDTA144WK SOT346 Q802...
- Page 57 22" LCD Color Monitor AOC 2230FH R802 061G0805101 RST CHIPR 100 OHM +-5% 1/8W R925 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R939 061G0805102 RST CHIPR 1K OHM +-5% 1/8W R938 061G0805103 RST CHIPR 10K OHM +-5% 1/8W R841 061G0805150 1F RST CHIPR 1.5 KOHM +-1% 1/8W...
- Page 58 22" LCD Color Monitor AOC 2230FH C806 065G0603105 12 CHIP 1UF 16VX7R 0603 C802 065G0603105 12 CHIP 1UF 16VX7R 0603 C818 065G0603222 22 CHIP 2200PF 25V X7R C817 065G0603222 22 CHIP 2200PF 25V X7R C815 065G0603222 22 CHIP 2200PF 25V X7R...
- Page 59 CHOKE COIL ASS'Y L903 S73G25391V CHOKE COIL ASS'Y Q36G 600517 DUSTER CLOTH Q40G 22N61553A RATING LABEL Q40G0001624 4A PALLET LABEL Q40G000262469A POP LABEL FOR 2230FH Q40G0002850 9A VISTA LABEL Q41G780A61587A Q44G6002132108 PAPER BOARD Q44G9003220 CORNER PAPER Q44GC043101 Q44GC043201 Q44GC043615 4A 22"LCD CARTON...
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Page 60: Different Parts List
Q41G780A61566A WARRANTY CARD Q45G 76 28CK2 PE BAG Q45G 88606CK2 PE BAG FOR BASE Q52G 1185 98 MIDDLE CARTON TAPE FOR AOC 040G 581 26646 EANCODE LABEL Q44G600019S 2A GP CARTON 040G 581 26646 EANCODE LABEL 045G 88525 B PE BAG...
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