41
FLOW CHART
NO
Is the signal obtained from
pin 8 of IC602
(A/V SW. circuit)
Check PCB pattern
and adjacent circuit
Check ON/OFF 5V
Is the video signal from
pin 8 of IC602 fed to
pin 30 of IC301?
YES
Is ON/OFF 5V supplied to
pin 36 and pin 47 of
IC301 at 5 volts?
TO RF OUT CIRCUIT
TO A/V SW CIRCUIT
YES
YES
NO
Check pin 95 94
of IC501.
Is the CLK
DATA signal
obtained from pin 63 64
of IC301?
YES
NO
Check TRICK(H)
and IC301
Is the signal from pin
35 of IC301 fed to pin
38 of IC301?
YES
YES
YES
NO
Check A/V SW circuit
NO
NO
Check PCB pattern
Is the video signal obtained
from pin 18 of IC001(OSD)?
Check OSD circuit
.
4-7. Video Circuit
A. TROUBLESHOOTING OF EE MODE.
Summary of Contents for DV-K82 series
Page 71: ...68 CIRCUIT DIAGRAMS 9 1 Connection Diagram SECTION 9 CIRCUIT DIAGRAM 68...
Page 72: ...69 CIRCUIT DIAGRAMS R819 5 1 9 2 Power Circuit Diagram...
Page 73: ...70 CIRCUIT DIAGRAMS 9 3 Syscon and Logic Circuit Diagram...
Page 74: ...71 CIRCUIT DIAGRAMS 9 4 AV SW Circuit Diagram...
Page 75: ...72 CIRCUIT DIAGRAMS 9 5 IF PDC Circuit Diagram TM...
Page 76: ...73 CIRCUIT DIAGRAMS 9 6 If Module Circuit Diagram A2...
Page 77: ...74 CIRCUIT DIAGRAMS 9 7 If Module Circuit Diagram Nicam...
Page 78: ...75 CIRCUIT DIAGRAMS 9 8 Hi Fi Pre Amp Circuit Diagram...
Page 79: ...76 CIRCUIT DIAGRAMS 9 9 Video Audio Circuit Diagram...
Page 80: ...77 CIRCUIT DIAGRAMS 9 10 Remocon Circuit Diagram...
Page 81: ...SECTION 10 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 78 P C B LOCATION 10 1 PCB Main...
Page 82: ...80 P C B LOCATION 10 3 PCB Logic DV K8K S S Series DV K86 S S Series DV K82 S S Series...
Page 83: ...81 P C B LOCATION DV K88 S S Series...
Page 84: ...SECTION 11 DISASSEMBLY 83 DISASSEMBLY 11 1 Packing Ass y...
Page 85: ...84 DIAGRAMS DV K88 Series DV K82 Series DV K8K Series DV K86 Series 11 2 Front Panel Assembly...
