47
FLOW CHART
NO
Is the signal from pin 7 of IC401
fed to pin 15 of IC301?
Check ON/OFF 5V
YES
Is ON/OFF 5V supplied to pin 36
and pin 47 of IC301 at 5 volts?
YES
NO
Check IC301
Is the PAL colour signal from
pin 15 of IC301 fed to pin 48
and pin 50 of IC301?
YES
NO
Change IC301
Is the signal from pin 48 and
pin 50 of IC301 fed to pin 3
and pin 1 of IC302 respectively?
YES
NO
Check IC302
Is the signal obtained
from pin 13 of IC302?
YES
NO
Check IC301 Q304,
R321, C334
Is the colour signal from pin 13
of IC302 fed to pin 45 through
pin 52 and 46 of IC301?
YES
NO
Check colour rotary
Is colour rotary supply
to pin 66 of IC301?
YES
To OSD circuit
Check PREAMP circuit
NO
NO
Check AMP circuit
* The AMP circuit consists of
Q305, R323, R324, R325
R326, R327 and C356
Is the PAL colour signal from
pin 7 of IC401 fed to pin 15
IC301 through AMP circuit?
YES
G. TROUBLESHOOTING OF PAL COLOUR IN THE PLAYBACK MODE.
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...