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AOC FSC X17-9 Service Manual Download Page 32

17” LCD Color Monitor                                              FSC X17-9

 

 32 

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 

Measure U701 PIN2=3.3V 

and U702 PIN2=1.8V 

Reinsert or check the 
Adapter/Inverter 
section

X201 oscillate waveforms 

are normal 

Check CN401 or replace 
U701, U702

 

Replace U401 

Replace X201

 

OK 

OK 

OK 

NG 

NG 

NG 

NG 

Summary of Contents for FSC X17-9

Page 1: ...ion 6 3 1 General Instructions 6 3 2 Control Button 6 3 3 Adjusting the Picture 7 4 Input Output Specification 11 4 1 Input Signal Connector 11 4 2 Factory Preset Display Modes 12 4 3 Power supply fea...

Page 2: ...17 LCD Color Monitor FSC X17 9 2 Revision List Revision Date Revision History TPV Model A00 Mar 10 08 Initial Release T78GMRDBHLM6AC A01 Sep 29 08 Add new BOM T7RAMRDBHLM5AC...

Page 3: ...aracteristics 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 im...

Page 4: ...type Panel Response time type 5ms Video Analog 0 7Vp p standard 75 OHM Positive Dot Clock 135MHz H Frequency 30kHz 82kHz Input V Frequency 56 75Hz AC supply voltage 100 V 240 V 50 Hz 60 Hz Synchronisa...

Page 5: ...ghtness 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 Monitor Block Diagram Video signal DDC Power Board Con...

Page 6: ...or By changing these settings the picture can be adjusted to your personal preferences The power cord should be connected Connect the video cable from the monitor to the video card Press the power but...

Page 7: ...17 LCD Color Monitor FSC X17 9 7 3 3 Adjusting the Picture...

Page 8: ...17 LCD Color Monitor FSC X17 9 8...

Page 9: ...17 LCD Color Monitor FSC X17 9 9...

Page 10: ...17 LCD Color Monitor FSC X17 9 10...

Page 11: ...17 LCD Color Monitor FSC X17 9 11 4 Input Output Specification 4 1 Input Signal Connector...

Page 12: ...ange and save the settings see Operation of the monitor 4 3 Power Supply Features A C Line voltage range 100 V 240 V A C Line frequency range 50 Hz 60Hz Current 1 5 A max at 100V 1 5A max at 240V Peak...

Page 13: ...es Gray scale or the brightness of the sub pixel color is determined with a 8 bit gray scale signal for each dot thus presenting a palette of more than 16 7M colors with A FRC Advanced Frame Rate Cont...

Page 14: ...17 LCD Color Monitor FSC X17 9 14 4 4 3 Optical Characteristics...

Page 15: ...17 LCD Color Monitor FSC X17 9 15 4 4 4 Electrical Characteristics...

Page 16: ...17 LCD Color Monitor FSC X17 9 16 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 17: ...the LED and set it to green color Scalar initialize 10 In standby mode 11 Update the life time of back light 12 Check the analog port are there any signals coming 13 Does the scalar send out an interr...

Page 18: ...iagram 5 2 1 Scalar Board Block Diagram OSD Control Interface KEYPAD CN201 Scalar TSUM16AWR LF 1 MSTAR Include ADC OSD MCU U401 D Sub Connector CN101 Hsync Vsync R G B RXD TXD DDC1_SDA DDC1_SCL Panel...

Page 19: ...MI filter Bridge Rectifier and Filter Start Circuit R904 R932 R933 PWM Control IC Transformer Feedback circuit Rectifier Diodes AC input 5V 12V ON OFF Control PWM Control IC Feedback Circuit OSC and O...

Page 20: ...17 LCD Color Monitor FSC X17 9 20 6 Schematic 6 1 Main Board...

Page 21: ...17 LCD Color Monitor FSC X17 9 21...

Page 22: ...17 LCD Color Monitor FSC X17 9 22...

Page 23: ...17 LCD Color Monitor FSC X17 9 23...

Page 24: ...17 LCD Color Monitor FSC X17 9 24 6 2 Power Board...

Page 25: ...17 LCD Color Monitor FSC X17 9 25...

Page 26: ...17 LCD Color Monitor FSC X17 9 26...

Page 27: ...17 LCD Color Monitor FSC X17 9 27 7 PCB Layout 7 1 Main Board...

Page 28: ...17 LCD Color Monitor FSC X17 9 28...

Page 29: ...17 LCD Color Monitor FSC X17 9 29 7 2 Power Board...

Page 30: ...17 LCD Color Monitor FSC X17 9 30 7 3 Key board...

Page 31: ...FSC X17 9 31 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...

Page 32: ...key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Measure U701 PIN2 3 3V and U702 PIN2 1 8V Reinsert or check the Adapter Inverter section X201 oscillate...

Page 33: ...normal Replace U401 Replace X201 Measure U701 PIN2 3 3V and U702 PIN2 1 8V Check Correspondent component Replace U401 X201 oscillate waveform is normal Replace U701 U702 OK OK OK OK OK NG NG NG NG Ch...

Page 34: ...ure Q301 base is low level X201 oscillate waveform is normal Check Q301 Q302 is broken or CN301 solder Check Correspondent component Replace PANEL Check Correspondent component Replace U401 OK OK OK R...

Page 35: ...e of C905 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...

Page 36: ...main board NG OK Check 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 wav...

Page 37: ...3 Key Pad 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 Ke...

Page 38: ...roma 7120 will show x 313 30 y 329 30 Y 240 cd m2 3 Adjust the RED of Native color on factory window until chroma 7120 indicator reached the value R 100 4 Adjust the GREEN of Native color on factory w...

Page 39: ...witch the chroma 7120 to sRGB channel 2 The LCD indicator on chroma 7120 will show x 315 15 y 325 15 Y 150 20 cd m2 3 Adjust the RED of sRGB color on factory window until chroma 7120 indicator reached...

Page 40: ...17 LCD Color Monitor FSC X17 9 40 10 Monitor Exploded View LCD PANEL SOURCE...

Page 41: ...UB 089G179E30H571 FFC CABLE E08901 089G410A18N IS POWER CORD 32E1818020 E09502 095G8014 6X652 WIRE HARNESS 6P 6P 200MM 0M1G 130 6120 SCREW M3X6 0M1G1040 8120 SCREW 0M1G1730 6120 SCREW 42 D020523 0M1G1...

Page 42: ...IPS SMT 04 Q202 057G 417 6 PMBS3906 PHILIPS SMT 06 Q203 057G 417 6 PMBS3906 PHILIPS SMT 06 Q301 057G 417 6 PMBS3906 PHILIPS SMT 06 Q403 057G 417 12 T KEC 2N3904S RTK PS Q405 057G 417 12 T KEC 2N3904S...

Page 43: ...0402103 RST CHIPR 10 KOHM 5 1 16W R210 061G0402103 RST CHIPR 10 KOHM 5 1 16W R209 061G0402103 RST CHIPR 10 KOHM 5 1 16W R208 061G0402103 RST CHIPR 10 KOHM 5 1 16W R205 061G0402103 RST CHIPR 10 KOHM 5...

Page 44: ...5R C219 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C212 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C211 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C207 065G0402104 15 MLCC 0402 0 1UF K 16V X5R C203 065G0402...

Page 45: ...P5 6B ROHM ZD105 093G 39S 34 T UDZSNP5 6B ROHM 715G2564 2 MAIN BOARD PCB KEPC7QM1 KEY BOARD CN001 033G3802 6H WAFER 6P RIGHT ANGLE PITCH 2 0 SW002 077G 600 1GCJ TACT SWITCH TSPB 2 NP SW001 077G 600 1G...

Page 46: ...14KV E C 105 CAP 470UF M 25V ED SERIES C918 067G215D6814KV CAP 105 680UF M 25V C917 067G215D6814KV CAP 105 680UF M 25V C940 067G215S1023KV 105 1000UF M 16V C939 067G215S1023KV 105 1000UF M 16V C915 06...

Page 47: ...57G 759 2 RK7002 Q810 057G 759 2 RK7002 Q808 057G 760 4B PDTA144WK SOT346 Q805 057G 760 5B PDTC144WK SOT346 R827 061G0603100 0F RST CHIPR 100 OHM 1 1 10W R942 061G0603100 1F RST CHIPR 1 KOHM 1 1 10W R...

Page 48: ...3 061G0603470 2F RST CHIPR 47 KOHM 1 1 10W R823 061G0603470 2F RST CHIPR 47 KOHM 1 1 10W R859 061G0603472 RST CHIPR 4 7KOHM 5 1 10W R803 061G0603564 RST CHIPR 560 KOHM 5 1 10W R106 061G0603622 RST CHI...

Page 49: ...ST CHIPR 1 KOHM 5 1 4W R912 061G1206221 RST CHIPR 220 OHM 5 1 4W R904 061G1206304 RST CHIPR 300 KOHM 5 1 4W R932 061G1206304 RST CHIPR 300 KOHM 5 1 4W R933 061G1206304 RST CHIPR 300 KOHM 5 1 4W R855 0...

Page 50: ...C907 065G0805104 32 CHIP 0 1U 50V X7R C930 065G0805104 32 CHIP 0 1U 50V X7R C924 065G0805104 32 CHIP 0 1U 50V X7R C916 065G0805104 32 CHIP 0 1U 50V X7R C824 065G0805104 32 CHIP 0 1U 50V X7R C805 065G...

Page 51: ...1097NT KMY50VB1M TP5 5 11 5 C908 067G 2152207NT KY50VB22M TP5 5 11 C104 067G215Y1014KT EC CAP 105 FB102 071G 55 9 T FERRITE BEAD J810 071G 55 9 T FERRITE BEAD FB901 071G 55 29 FERRITE BEAD F903 084G 5...

Page 52: ...APE Q52G 1211571 ALUMINUM FOIL TAPE Q52G6020 52 PROTECT FILM 041G780061537A TCO 03 CARD 089G 173 56507 AUDIO CABLE Q41G6800622 6I WARRANTY BOOKLET Q41G780062244A GETTING STAR Q45G 76 28 RN R PE BAG MA...

Page 53: ...3 100GFMA7000N11 MCU ASS Y 056G1133 74 A15G0241 5 MAIN FRAME CN301 033G801930F CH JS CONNECTOR X201 093G 22 53 H 14 31818MHZ 30PF 49US Q202 057G 417517 LMBT3906LT1G SOT 23 BY LRC Q203 057G 417517 LMBT...

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