46
TROUBLESHOOTING
3. VIDEO circuit
A. EE screen doesn't appear
EE MODE Picture NG
Is Video signal input into
JK101?
Is 5V supplied at IC102?
Is select signal input
at pin#10, 11 of IC102?
Check JK101, JK701 and RF101.
Check POWER 5V circuit.
Check IC601
pin #30,31.
NO
YES
YES
NO
NO
YES
Is Data, clock signal input
at pin #9, 10 of IC103?(RF)
YES
NO
Check
pin#10, 11 of IC601
Is video signal at
pin#3 of IC102?
YES
NO
Check PCB Pattern.
Is video output signal
at JK101?
YES
NO
Check M-PEG BOARD
Check IC 601
Is signal output from
pin #5 of P201?
Check RF Output.
Check LINE out.
YES
YES
Check PCB Pattern.
NO
Summary of Contents for DG-R520
Page 1: ...DVD Recorder FEB 2006 DW Q73D2N LS DVR06 DVR07 DVR08 DG R520 DG R521 DWQ73DN001...
Page 3: ...2 DW Q73D2N LS DVR06 DVR08 DG R520 DG R521 DVR07...
Page 12: ...11 BLOCK DIAGRAM...
Page 13: ...12 BLOCK DIAGRAM...
Page 14: ...13 BLOCK DIAGRAM P201 P201 IC201 A SW NJM4052BM IC101...
Page 15: ...14 BLOCK DIAGRAM...
Page 16: ...15 BLOCK DIAGRAM...
Page 17: ...16 BLOCK DIAGRAM...
Page 18: ...17 BLOCK DIAGRAM...
Page 19: ...18 SCHEMATIC DIAGRAM...
Page 20: ...19 SCHEMATIC DIAGRAM...
Page 21: ...20 SCHEMATIC DIAGRAM...
Page 22: ...21 SCHEMATIC DIAGRAM...
Page 23: ...22 SCHEMATIC DIAGRAM...
Page 42: ...41 DISASSEMBLY DW Q73D2N LS DVR06 DVR08 DG R520 DG R521...
Page 43: ...42 disassembly DVR07...
Page 44: ...43 TROUBLESHOOTING D806 D809 PJ822 is 0 voltage Check Q821 Q827...
Page 48: ...47 TROUBLESHOOTING...
Page 50: ...49 TROUBLESHOOTING...
Page 51: ...50 TROUBLESHOOTING...
Page 52: ...51 TROUBLESHOOTING...
Page 53: ...52 TROUBLESHOOTING...
Page 54: ...53 TROUBLESHOOTING...
Page 55: ...54 PCB CIRCUIT BOARD Analog Board parts...
Page 56: ...55 PCB CIRCUIT BOARD Power Board parts...
Page 57: ...56 PCB CIRCUIT BOARD Front pannel parts DW Q73D2N LS DVR06 DVR08 DG R520 DG R521...
Page 58: ...57 PCB CIRCUIT BOARD Front pannel parts DVR07...
Page 59: ...58 PCB CIRCUIT BOARD Mpeg SYSTEM parts...
Page 60: ...59 PCB CIRCUIT BOARD Mpeg Video parts...
Page 61: ...60 PCB CIRCUIT BOARD Mpeg Audio parts...