3-13
Check IC804 - 1,3(input) and
31(output)and then CABLE
=> IC4009 signal input
JACK CABLE => IC501
Check signal input
No video signal of external
input 1/2(Rear Scart input)
No video signal of external input
3/4Rear Composite/Front
Composite ,S-video )
When connecting Tuner,
No TV video signal
Check IC804 - 28(input) and
31(output) And then CABLE
=> IC4009 signal input
IC501- 27 : HIGH ?
/RST_7115
When RESET Check IC501
- 31,32 I
2
C CLK, DATA
Check IC501 – 91,94 sig-
nal?(VI_CLK, VI_VSYNC0 )
IC501 => IC101
Check VI_D0 ~ VI_D7signal
< When Playing DISC ,No COMPONENT, COMPOSIT/S-VIDEO
signal > check
Check Tuner power and
other circuits
NO
NO
NO
NO
YES
YES
YES
Check IC311-2 signal
Check IC502- 21,22
Signal and 5v level
Check X501 Clock
oscillated
Replace X501 X-TAL
Check IC501 power and
other circuits
YES
YES
YES
YES
YES
YES
YES
YES
YES
14. No TV , external input video signal
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 ...