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Sharp WQ-CH400H Serviceanleitung Seite 44

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WQ-CH400H/450H
WQ-CH400L
©
|
No sound from both L and R-ch?
Check FW851.
If OK, the main PWB is faulty.
Check the periphery of ICBO2.
LIEOK, IC803isfaulty.
Yes
Is the following waveform output at the pin 10
(TCIN) of 1C801 during track search in normal
playback?
Aly
Is the following waveform output at the pin 29
C801 is faulty.
(D OUT) of C807 during track jump?
No
Pin 29
:
LI HHH |
Kick Pulse
Jie = = [t
(TCIN)
track jump?
2 ra)
tsour! = |
Check the pariphery of pin 17(TS OUT) and
pin 18(SS FIL) of IC801.
=7O=

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