89
TROUBLESHOOTING GUIDES (Continued)
B.
Is pin
f
of IC301 0V?
Is the output at pin
H
of IC301?
Check R221, R222, R203,
C221.
Is 5V applied to pin
y
,
]
,
J
of IC301?
Is 5V applied to pin
F
of
IC301?
Is 0V collector of Q201?
Check Pin
%
,
$
of P201
NO
NO
Check power circuit
NO
Check IC601
NO
Check Q201, Q202, Q204
YES
YES
YES
YES
YES
No sound in the playback mode.
Содержание DV- K504N-SJ
Страница 35: ...34 AC001 K584NZ SJ M K584NZ SG M only...
Страница 36: ...35...
Страница 37: ...36...
Страница 38: ...37...
Страница 39: ...38...
Страница 60: ...59 ELECTRICAL ADJUSTMENTS Fig 1 Circuit Board Location...
Страница 92: ...91 INTERCONNECT WIRING DIAGRAM K584N K484N K384N K284N...
Страница 93: ...92 POWER SUPPLY SCHEMATIC DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Страница 95: ...94 2HD HEAD AMP SCHEMATIC DIAGRAM K384N K284N K304N...
Страница 96: ...95 4HD HEAD AMP SCHEMATIC DIAGRAM K584N K484N K504N...
Страница 97: ...96 VIDEO AUDIO SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Страница 98: ...97 PIF INPUT SELECTOR SCHEMATIC DIAGRAM 9V USE K584NY SJ M K584NZ SJ M K584NZ SG M...
Страница 100: ...99 TIMER SYSCON SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Страница 101: ...100 POWER SUPPLY BLOCK DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Страница 103: ...102 2HD HEAD AMP BLOCK DIAGRAM K384N K284N K304N...
Страница 104: ...103 4HD HEAD AMP BLOCK DIAGRAM K584N K484N K504N...
Страница 105: ...104 VIDEO AUDIO BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Страница 106: ...105 PIF INPUT SELECTOR BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Страница 107: ...106 SYSCON SERVO BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N SEG A SEG L SEG A SEG L SEG C SEG F G1 G8 G1 G8...
Страница 109: ...108 MAIN PCB 2HEAD 4HEAD...