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Verfügbare Sprachen
Verfügbare Sprachen
WQ-CH400H/450H
WQ-CH400L".
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Does only the specific tray fail to stop?
Yes
No
Yes
Yes
o
-Boes the voltage at the pin-20 of IC701 vary | No
| Check for contact failure between FW953 and CNP953. __
-
between approx. 0.1 to 5V during tray operation
"| Check the pattern between FW953 and the pitt 20 of IC701.
©
(depending on protrusion at the rear side of
If OK, 10701 is faulty.
Wa,
I
Saas
;
tray)?
Yes
"
Is the plunger PL981 turned on when the base
Is approx. +7V applied to the collector of Q952 when the base and emitter of Q951 are
and emitter of Q951 are short-circuited?
No
short-circuited?
Yes
Yes
No
|
Check Q951 and the pattern.
Check voitage on Q951.
Check the connection of FW953 and CNP953,
If OK, Q951 or Q952 is faulty.
lf OK, the plunger PL981 is faulty.
Does the CD mechanism move only up and
Does the plunger PL981 remain turned
Q952 and Q951 are faulty,
or IC701
|
down while the tray remains in stop position? | Yes
| on?
Yes
is faulty.
|
The control circuit is normal.
ae :
:
Check the mechanism.
The contro! circuit is normal.
Check the mechanism
—§2~-
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