3-39
3-40
CIRCUIT DIAGRAMS
1. POWER CIRCUIT DIAGRAM
SR16125A
Power dead
IC101 is defective
Power dead
IC104 is defective
Power dead
IC105 is defective
Power dead
IC102 is defective
VF(+) Power dead
R107 is defective
12V Power dead
IC153 is defective
12VT or 12VA Power dead
IC153 is defective
5VD Power dead
Q120 and Q121 is defective
33V Power dead
Q123 is defective
5VT Power dead
Q124 and Q122 is defective
2.5V Power dead
IC159 is defective
5V ( LOADER ) Power dead
IC151 is defective
12V ( LOADER ) Power dead
IC151 is defective
3.3V Power dead
IC154 is defective
3.3V Power dead
IC154 is defective
1.5K
2.2K
Summary of Contents for RH4820W
Page 40: ...3 41 3 42 2 E5 BGA POWER UART2 CIRCUIT DIAGRAM E5 BAG POWER UART2 ...
Page 43: ...3 47 3 48 5 1394 ETHERNET CONNECTOR CIRCUIT DIAGRAM 1394 ETHERNET CONNECTOR ...
Page 44: ...3 49 3 50 VIDEO IN OUT 6 VIDEO IN OUT CIRCUIT DIAGRAM ...
Page 45: ...3 51 3 52 7 AUDIO IN OUT CIRCUIT DIAGRAM AUDIO IN OUT ...
Page 46: ...3 53 3 54 8 I O MICOM CIRCUIT DIAGRAM SR17208A I O MICOM ...
Page 47: ...3 55 3 56 9 TUNER VIDEO IN OUT CIRCUIT DIAGRAM SR17209A TUNER VIDEO IN OUT 3 9K 3 9K ...
Page 48: ...3 57 3 58 10 FRONT CIRCUIT DIAGRAM HDD VDR_FRONT ...
Page 54: ...3 69 3 70 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE LOCATION GUIDE ...
Page 55: ...3 71 3 72 2 MAIN P C BOARD BOTTOM SIDE LOCATION GUIDE ...
Page 57: ...3 75 3 76 5 FRONT P C BOARD LOCATION GUIDE 6 KEY P C BOARD ...
Page 58: ...3 77 3 78 7 POWER P C BOARD LOCATION GUIDE ...
Page 88: ...3 108 4 IC302 uPD76f0047 MICOM Pin Assignment ...
Page 110: ......
Page 112: ...3 132 3 133 2 DSP CIRCUIT DIAGRAM No Power No operation DSP IC RESET IC SDRAM R259 0Ω ...
Page 114: ...3 136 3 137 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...