3-103
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
Summary of Contents for LGXBR342
Page 10: ...OVERALL WIRING DIAGRAM 3 2 ...
Page 36: ...3 36 3 37 EE MODE VIDEO TU MODE AUDIO 2 TU IF CIRCUIT DIAGRAM ...
Page 38: ...3 40 3 41 4 JACK CIRCUIT DIAGRAM ...
Page 44: ...3 52 3 53 PRINTED CIRCUIT DIAGRAMS 1 VCR P C BOARD ...
Page 45: ...3 54 3 55 3 TIMER P C BOARD 2 POWER P C BOARD ...
Page 46: ...3 56 3 57 4 KEY P C BOARD 5 JACK P C BOARD ...
Page 47: ......
Page 60: ...3 70 3 71 CIRCUIT DIAGRAMS 1 E5_BGA POWER UART2 CIRCUIT DIAGRAM ...
Page 61: ...3 72 3 73 2 DDR_SDRAM FLASH CIRCUIT DIAGRAM ...
Page 62: ...3 74 3 75 3 RST CONTROL STATUS_REG ATAPI HOST_CPLD LATCH CIRCUIT DIAGRAM ...
Page 63: ...3 76 3 77 4 1394 ETHERNET_CONNECTOR CIRCUIT DIAGRAM ...
Page 64: ...3 78 3 79 5 VIDEO_IN OUT CIRCUIT DIAGRAM ...
Page 65: ...3 80 3 81 6 AUDIO IN OUT NON STD_VIDEO CIRCUIT DIAGRAM ...
Page 66: ...3 82 3 83 7 AUDIO DAC VIDEO_Y MIXER CIRCUIT DIAGRAM ...
Page 67: ...8 FRONT A V 1934 JACK CIRCUIT DIAGRAM 3 84 3 85 ...
Page 72: ...3 94 3 95 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Page 73: ...3 96 3 97 2 MAIN P C BOARD BOTTOM VIEW ...
Page 103: ...3 127 4 IC302 uPD76f0047 MICOM Pin Assignment ...
Page 125: ......
Page 127: ...3 151 3 152 2 DSP CIRCUIT DIAGRAM No Power No operation DSP IC RESET IC SDRAM R259 0Ω ...
Page 129: ...3 155 3 156 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Page 152: ...MAINTENANCE INSPECTION PROCEDURE 4 22 GEAR F R GEAR AY P2 P3 F R Lever Tension Base Boss CAM ...
Page 161: ...MEMO ...
Page 163: ......