3-17
VCR ELECTRICAL TROUBLESHOOTING GUIDE
7. Hi-Fi CIRCUIT
(1) No Sound(EE Mode)
YES
No Sound.
Check the TU Audio of IC801
Pins2, 3.
Check the DVD Audio of IC801
Pins4, 5.
Check the AV1 Audio of IC801
Pins6, 7.
Check the AV2 Audio of IC801
Pins8, 9.
Check the Vcc of IC801 Pins34, 40,
IC802 Pin4.
YES
Check the IIC Clock and DATA at
IC801 Pins42, 43
YES
Check the Audio of IC801 Pins16, 17.
YES
Check the JK601.
Check the IC701 Pins30, 31.
NO
Check the VDR MODULE.
(PMD02 Pins23, 25).
NO
NO
Check the RCA Jack.
(JK601 Scart1 Audio in L, R).
NO
Check the VDR MODULE.
(PMD02 Pins27, 29).
Check the Power 5.2V, 12V.
YES
NO
Check the IC501 Pins71, 72.
NO
Replace IC801.
NO
Содержание LGXBR342
Страница 10: ...OVERALL WIRING DIAGRAM 3 2 ...
Страница 36: ...3 36 3 37 EE MODE VIDEO TU MODE AUDIO 2 TU IF CIRCUIT DIAGRAM ...
Страница 38: ...3 40 3 41 4 JACK CIRCUIT DIAGRAM ...
Страница 44: ...3 52 3 53 PRINTED CIRCUIT DIAGRAMS 1 VCR P C BOARD ...
Страница 45: ...3 54 3 55 3 TIMER P C BOARD 2 POWER P C BOARD ...
Страница 46: ...3 56 3 57 4 KEY P C BOARD 5 JACK P C BOARD ...
Страница 47: ......
Страница 60: ...3 70 3 71 CIRCUIT DIAGRAMS 1 E5_BGA POWER UART2 CIRCUIT DIAGRAM ...
Страница 61: ...3 72 3 73 2 DDR_SDRAM FLASH CIRCUIT DIAGRAM ...
Страница 62: ...3 74 3 75 3 RST CONTROL STATUS_REG ATAPI HOST_CPLD LATCH CIRCUIT DIAGRAM ...
Страница 63: ...3 76 3 77 4 1394 ETHERNET_CONNECTOR CIRCUIT DIAGRAM ...
Страница 64: ...3 78 3 79 5 VIDEO_IN OUT CIRCUIT DIAGRAM ...
Страница 65: ...3 80 3 81 6 AUDIO IN OUT NON STD_VIDEO CIRCUIT DIAGRAM ...
Страница 66: ...3 82 3 83 7 AUDIO DAC VIDEO_Y MIXER CIRCUIT DIAGRAM ...
Страница 67: ...8 FRONT A V 1934 JACK CIRCUIT DIAGRAM 3 84 3 85 ...
Страница 72: ...3 94 3 95 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Страница 73: ...3 96 3 97 2 MAIN P C BOARD BOTTOM VIEW ...
Страница 103: ...3 127 4 IC302 uPD76f0047 MICOM Pin Assignment ...
Страница 108: ...3 132 3 Main Clock2 for IC302 20MHz GND LEVEL X301 IC302 PIN 13 4 SDRAM Clock GND LEVEL MCLK IC201 PIN 35 ...
Страница 125: ......
Страница 127: ...3 151 3 152 2 DSP CIRCUIT DIAGRAM No Power No operation DSP IC RESET IC SDRAM R259 0Ω ...
Страница 129: ...3 155 3 156 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Страница 152: ...MAINTENANCE INSPECTION PROCEDURE 4 22 GEAR F R GEAR AY P2 P3 F R Lever Tension Base Boss CAM ...
Страница 161: ...MEMO ...
Страница 163: ......