Thoubleshooting
5-4
Samsung Electronics
No Front (SET) operation
REF+/-, +5V, -28V power
is supplied to FJP1?
Check power status
Check FXTAL peripheral circuit
Check reset peripheral circuit of FIC2
Check FIC1(Micom) soldering
Check FU1(Micom) peripheral circuit
Check S/W interface. Check
communication status with main Micom
Check FR pins 34,13,12,11,10,8
7,6,26
If the problem persists:
Check after replacing Front.
Check other parts for normal Front operation
12MHz oscillation (FY1)?
Reset working in
FIC1(Micom) 12pin?
FIC1(Micom)
soldering is OK?
Operational waveform is
missing
in FIC3(FLT) pin ?
Keys of STOP, PLAY, OPEN
work normally?
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Summary of Contents for DVD-905
Page 5: ...Precautions 1 4 Samsung Electronics MEMO ...
Page 7: ...Product Specifications 3 2 Samsung Electronics MEMO ...
Page 87: ...Thoubleshooting 5 26 Samsung Electronics MEMO ...
Page 93: ...Exploded View and Parts List 6 6 Samsung Electronics 6 3 Remote Control ...
Page 121: ...Electrical Parts List 7 28 Samsung Electronics MEMO ...
Page 123: ...Block Diagrams 8 2 Samsung Electronics MEMO ...
Page 124: ...Samsung Electronics 10 1 10 Wiring Diagram ...
Page 125: ...Wiring Diagrams 10 2 Samsung Electronics MEMO ...
Page 127: ...Schematic Diagrams 11 2 Samsung Electronics 11 1 SMPS ...
Page 128: ...Schematic Diagrams Samsung Electronics 11 3 11 2 FRONT ...
Page 129: ...Schematic Diagrams 11 4 Samsung Electronics 11 3 MICOM ...
Page 131: ...Schematic Diagrams 11 6 Samsung Electronics 11 5 VIDEO 1 2 3 4 5 7 8 9 10 6 11 12 13 14 15 16 ...
Page 133: ...Schematic Diagrams 11 8 Samsung Electronics 11 7 AUDIO 2 ...
Page 134: ...Schematic Diagrams Samsung Electronics 11 9 11 8 DATA PROCESSOR ...
Page 135: ...Schematic Diagrams 11 10 Samsung Electronics 11 9 A V DECORDER ...
Page 136: ...Schematic Diagrams Samsung Electronics 11 11 11 10 PICK UP DECK ...