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3-84
Focus Servo is unstable
Replace the IC107.
•Check the R158.
•Replace the IC107.
• Check the connection of IC202 pin 146.
• Check the communication line between
IC106 and IC202.
• Replace the IC106.
• Check the connection of IC302.
• Replace the IC302.
Is FE signal
output normal in Focusing
Up/Down?
(IC107 pin 86)
Is FDRV signal
output normal in Focusing
Up/Down?
(IC202 pin 146)
Go to “Focus Actuator
operating is abnormal”
Focus Actuator operating is abnormal.
Is there focus
search control signal input?
(IC105 pin 53)
Is there focus
search drive voltage output?
(IC105 pin 45,46)
Is DRV-CTRL1
signal “H”?
(IC105 pin 23)
Replace the IC105.
•Check the connection CN101 pin 35,36.
•Check the connector CN101.
Replace the pick-up.
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Содержание RH4820W
Страница 40: ...3 41 3 42 2 E5 BGA POWER UART2 CIRCUIT DIAGRAM E5 BAG POWER UART2 ...
Страница 43: ...3 47 3 48 5 1394 ETHERNET CONNECTOR CIRCUIT DIAGRAM 1394 ETHERNET CONNECTOR ...
Страница 44: ...3 49 3 50 VIDEO IN OUT 6 VIDEO IN OUT CIRCUIT DIAGRAM ...
Страница 45: ...3 51 3 52 7 AUDIO IN OUT CIRCUIT DIAGRAM AUDIO IN OUT ...
Страница 46: ...3 53 3 54 8 I O MICOM CIRCUIT DIAGRAM SR17208A I O MICOM ...
Страница 47: ...3 55 3 56 9 TUNER VIDEO IN OUT CIRCUIT DIAGRAM SR17209A TUNER VIDEO IN OUT 3 9K 3 9K ...
Страница 48: ...3 57 3 58 10 FRONT CIRCUIT DIAGRAM HDD VDR_FRONT ...
Страница 54: ...3 69 3 70 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE LOCATION GUIDE ...
Страница 55: ...3 71 3 72 2 MAIN P C BOARD BOTTOM SIDE LOCATION GUIDE ...
Страница 56: ...3 73 3 74 3 I O P C BOARD LOCATION GUIDE 4 JACK P C BOARD LOCATION GUIDE LOCATION GUIDE LOCATION GUIDE ...
Страница 57: ...3 75 3 76 5 FRONT P C BOARD LOCATION GUIDE 6 KEY P C BOARD ...
Страница 58: ...3 77 3 78 7 POWER P C BOARD LOCATION GUIDE ...
Страница 88: ...3 108 4 IC302 uPD76f0047 MICOM Pin Assignment ...
Страница 93: ...3 113 3 Main Clock2 for IC302 20MHz GND LEVEL X301 IC302 PIN 13 4 SDRAM Clock GND LEVEL MCLK IC201 PIN 35 ...
Страница 110: ......
Страница 112: ...3 132 3 133 2 DSP CIRCUIT DIAGRAM No Power No operation DSP IC RESET IC SDRAM R259 0Ω ...
Страница 114: ...3 136 3 137 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...