79
TROUBLESHOOTING GUIDES (Continued)
I.
Check power circuit.
NO
Is 12V supplied to P502
pin
!
?
YES
Check IC601 and D.FG.
NO
Is D.PWM (pin
$
)
of IC601 correct
Check R503, R523 and C506
NO
Is the voltage of P502 pin
@
1.2V?
Check connector (P502)
and DRUM Motor
J.
YES
YES
Check power circuit.
NO
Is 12V supplied to P501
pin
&
?
YES
NO
Is the voltage of pin
^
P501 3.2V?
YES
Check R521, R522.
NO
Is the voltage of P501
pin
$
2.5V?
YES
Check IC601 and C.FG.
NO
Is C.PWM (pin
#
)
of IC601 correct?
YES
NO
Is the voltage of pin
%
P501
2~3V
YES
Check connector (P501)
and capstan motor
Check R519, R520,
C504.
Check circuit of R510
R516, R517, R518, C505
Drum Motor dose not rotate.
Capstan Motor does not rotate.
Summary of Contents for DV- K504N-SJ
Page 35: ...34 AC001 K584NZ SJ M K584NZ SG M only...
Page 36: ...35...
Page 37: ...36...
Page 38: ...37...
Page 39: ...38...
Page 60: ...59 ELECTRICAL ADJUSTMENTS Fig 1 Circuit Board Location...
Page 92: ...91 INTERCONNECT WIRING DIAGRAM K584N K484N K384N K284N...
Page 93: ...92 POWER SUPPLY SCHEMATIC DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 95: ...94 2HD HEAD AMP SCHEMATIC DIAGRAM K384N K284N K304N...
Page 96: ...95 4HD HEAD AMP SCHEMATIC DIAGRAM K584N K484N K504N...
Page 97: ...96 VIDEO AUDIO SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 98: ...97 PIF INPUT SELECTOR SCHEMATIC DIAGRAM 9V USE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 100: ...99 TIMER SYSCON SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 101: ...100 POWER SUPPLY BLOCK DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 103: ...102 2HD HEAD AMP BLOCK DIAGRAM K384N K284N K304N...
Page 104: ...103 4HD HEAD AMP BLOCK DIAGRAM K584N K484N K504N...
Page 105: ...104 VIDEO AUDIO BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 106: ...105 PIF INPUT SELECTOR BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 109: ...108 MAIN PCB 2HEAD 4HEAD...