27
FLOW CHART
B. TROUBLESHOOTING OF RF MODULATOR OUT
Is Video Signal at Video In point,
Pin No. 6 of TM Block?
Check the A/V Switching, Video and
Audio Circuit.
NO
Is Audio Signal at Audio In point,
Pin No. 2 of TM Block?
NO
YES
YES
YES
YES
YES
YES
Are RF OUT System and RF Out
channel selected well by menu key.
Select the RIGHT System and
channel by menu key.
NO
Is system Select Option Diode
applied well according to Option
Table?
Correct the Option.
NO
Is +5V supplied to MB point,
Pin No. 4 of TM Block?
Check on/off 5V and Power Supply
Circuit.
NO
Is +30V supplied to TU(MD) point,
Pin No. 7 of TM Block?
Check D171 and Power Supply
Circuit.
NO
YES
Is Serial Clock supplied to SCL
points, Pin No. 5 of TM
Block?
YES
Change the TM Block.
Check the
µ
-COM port, SCL.
NO
Check the
µ
-COM port, SDA.
NO
Is Serial Data supplied to
SDA points, Pin No. 3 of TM
Block?
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...
