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?
Содержание DV-K82 series
Страница 71: ...68 CIRCUIT DIAGRAMS 9 1 Connection Diagram SECTION 9 CIRCUIT DIAGRAM 68...
Страница 72: ...69 CIRCUIT DIAGRAMS R819 5 1 9 2 Power Circuit Diagram...
Страница 73: ...70 CIRCUIT DIAGRAMS 9 3 Syscon and Logic Circuit Diagram...
Страница 74: ...71 CIRCUIT DIAGRAMS 9 4 AV SW Circuit Diagram...
Страница 75: ...72 CIRCUIT DIAGRAMS 9 5 IF PDC Circuit Diagram TM...
Страница 76: ...73 CIRCUIT DIAGRAMS 9 6 If Module Circuit Diagram A2...
Страница 77: ...74 CIRCUIT DIAGRAMS 9 7 If Module Circuit Diagram Nicam...
Страница 78: ...75 CIRCUIT DIAGRAMS 9 8 Hi Fi Pre Amp Circuit Diagram...
Страница 79: ...76 CIRCUIT DIAGRAMS 9 9 Video Audio Circuit Diagram...
Страница 80: ...77 CIRCUIT DIAGRAMS 9 10 Remocon Circuit Diagram...
Страница 81: ...SECTION 10 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 78 P C B LOCATION 10 1 PCB Main...
Страница 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...
Страница 83: ...81 P C B LOCATION DV K88 S S Series...
Страница 84: ...SECTION 11 DISASSEMBLY 83 DISASSEMBLY 11 1 Packing Ass y...
Страница 85: ...84 DIAGRAMS DV K88 Series DV K82 Series DV K8K Series DV K86 Series 11 2 Front Panel Assembly...