46
TROUBLESHOOTING
Noise appears on the
playback screen.
Is noise diminished by tracking
adjustment.
Noise band is trembled up and
down?
Re-adjust PATH.
Is the height of CTL HEAD normal?
No dust?
Is there problem in CTL Input
circuit and amplifier.
YES
NO
NO
NO
Is there CTL pulse at IC601
pin#97?
Check IC601.
Noise appears on the screen even
though changing tape.
Re-adjust the height of AC HEAD.
Remove the dust.
Check C651, C652, R651~R653
IC601 pin #91, 92, 98.
NO
Re-adjust PATH.
B-1. Bad playback quality (1)
YES
YES
YES
YES
Noise appears on the Full
playback screen.
Are SW pulse and HA SW normal?
Recheck step B-1
(Bad playback quallty (1)).
Check HEAD AMP connector
and HEAD.
YES
YES
NO
NO
ENVE Wave at PT01 pin #4?
Check VIDEO circuit.
Are there SW, HA SW pulse at
IC601 pin #16, 18?
Check PCB Pattern.
Check IC601.
B-2. Bad playback quality (2)
YES
NO
YES
DF-K34D2A-JS svc 2006.5.11 3:56 PM ˘
` 46 mac001 1200DPI 80LPI
Summary of Contents for DF-K34D2A-JS
Page 3: ...2 SPECIFICATIONS DF K34D2A JS svc 2006 5 11 9 26 AM 2 mac001 1200DPI 80LPI...
Page 4: ...3 SPECIFICATIONS DF K34D2A JS svc 2006 5 11 9 26 AM 3 mac001 1200DPI 80LPI...
Page 5: ...4 SPECIFICATIONS DF K34D2A JS svc 2006 5 11 9 26 AM 4 mac001 1200DPI 80LPI...
Page 6: ...5 SPECIFICATIONS DF K34D2A JS svc 2006 5 11 9 26 AM 5 mac001 1200DPI 80LPI...
Page 7: ...6 SPECIFICATIONS DF K34D2A JS svc 2006 5 11 9 26 AM 6 mac001 1200DPI 80LPI...
Page 11: ...10 BLOCK DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM G mac001 1200DPI 80LPI...
Page 13: ...12 BLOCK DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM K mac001 1200DPI 80LPI...
Page 17: ...16 BLOCK DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM S mac001 1200DPI 80LPI...
Page 18: ...17 SCHEMATIC DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM U mac001 1200DPI 80LPI...
Page 19: ...18 SCHEMATIC DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM W mac001 1200DPI 80LPI...
Page 20: ...19 SCHEMATIC DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM Y mac001 1200DPI 80LPI...
Page 21: ...20 SCHEMATIC DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM AA mac001 1200DPI 80LPI...
Page 22: ...21 SCHEMATIC DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM AC mac001 1200DPI 80LPI...
Page 23: ...22 SCHEMATIC DIAGRAM DF K34D2A JS svc 2006 5 11 3 57 PM AE mac001 1200DPI 80LPI...
Page 37: ...36 WAVEFORMS DF K34D2A JS svc 2006 5 11 3 56 PM 36 mac001 1200DPI 80LPI...
Page 40: ...39 WAVEFORMS DF K34D2A JS svc 2006 5 11 3 56 PM 39 mac001 1200DPI 80LPI...
Page 56: ...55 DF K34D2A JS svc 2006 5 11 3 56 PM 55 mac001 1200DPI 80LPI...
Page 63: ...62 PCB CIRCUIT BOARD DF K34D2A JS svc 2006 5 11 3 56 PM 62 mac001 1200DPI 80LPI...
Page 64: ...63 PCB CIRCUIT BOARD DF K34D2A JS svc 2006 5 11 3 56 PM 63 mac001 1200DPI 80LPI...
Page 96: ...95 ELECTRICAL PARTSLIST DF K34D2A JS svc 2006 5 11 3 56 PM 95 mac001 1200DPI 80LPI...
