- 14
No power compensation
.
Voltage of power fail (IC601
pin#100) at micom is 0.7V
over?
More than 3.2V is maintained
for 1 minutes at IC601 pin#37
during Power Cord Open.
Exchange IC601.
Check R625.
Check RESET circuit.
Noise band is trembled up and
down?
Check IC601.
Re-adjust PATH.
Is noise diminished by tracking
adjustment.
Is there CTL pulse at IC601
pin#97?
Noise appears on the screen
even though changing tape.
Is there problem in CTL Input
circuit and amplifier
.
Is the height of CTL HEAD normal
?
No dust?
Check C651, C652, R651~R653
IC601 pin #91, 92, 98.
Re-adjust the height of A/C
HEAD. Remove the dust
.
Re-adjust PATH.
C-1. Bad playback quality (1)
YES
YES
NO
NO
YES
YES
Noise appears on the
screen.
YES
YES
NO
NO
NO
YES
NO
YES
B. No power compensation.
Summary of Contents for DVCR101
Page 1: ...DVCR101 DVD VCR PLAYER SERVICE MANUAL...
Page 41: ...40 2 TOP COVER REMOVAL...
Page 42: ...41 3 LOGIC PCB DISASSEMBLY...
Page 43: ...42 4 DECK AND MAIN PARTS DISASSEMBLY...
Page 44: ...43 5 MAIN PCB DISASSEMBLY...
Page 45: ...44 6 MAIN CHASSIS DISASSEMBLY...
Page 46: ...45 7 EXPLODE VIEW CIRCUIT DIAGRAM...
Page 47: ...46...
Page 48: ...47...
Page 49: ...48...
Page 50: ...49...
Page 51: ...50...