40
FLOW CHART
No Hi-Fi sound in the
playback mode
Is the FM ENVE supplied
to the pin 13 of IC251?
Is A. SW pulse input to the
pin 20 of IC251?
YES
YES
YES
NO
Check the power circuit.
NO
Change the IC251
NO
Check the Preamp module.
NO
NO
Check the SYSCON.
Are the clock and
data supplied to the
pin 5 6 of IC251?
YES
Is 5V supplied to the pin
18 36 39 of IC251?
YES
YES
Is the signal out to the pin
29 30 of IC251?
Check the A/V SW circuit.
.
B. TROUBLESHOOTING OF Hi-Fi REC AND PB
Summary of Contents for DV-K88 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...
