Troubleshooting - Sanyo GCD 2000 Service Manual

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TROUBLE SHOOTING GUIDE & FLOW CHART
Disc select from stop
TROUBLE SHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSE
I
CORRECTIVE ACTION
No power when
the POWER button
is set to ON.
No sound.
No power plug connection at
the
AC
outlet
Insert the power
plug
into the
AC outlet.
Volume control is set to
minimum.
Turn up the volume.
The wrong function is
selected.
Select the correct function.
Come down the Base mechanism
I
Connect the leads firmly to the
speaker terminals.
No sound from
any function
Faulty speaker connections
&::'N
Chucking release finished?
The CD player will I The disc is loaded upside
I Load the disc with the label
not operate ] down. I side up.
The sound from
the CD player
skip.
The compact disc is dirty. I Clean the disc.
The compact disc is scratched. I Replace the disc.
... . . ..
i
YES
Abnormal CD or
display operation
with the correct
button settings.
The memory must be reset. Disconnect the power cord,
then connect the power cord
and resume operation.
i'
I
Base mechanism stop
I
Poor sound quality Dirty heads, pinch roller or
I
Clean the tape path.
during playback. capstans.
I Turntable high speed I
Record mode does The guard tabs have been' Place
tape over the guard tabs.
not operate. removed from the cassette.
-& Photo
sensor
input
+ . . . .
WHAT TO DOFF.....
.
If the
operation of the unit or display is not normal
or when all
the memory contents are to be cleared.
J=_No
HOW TO NORMAL STATE THE SET
Turntable idling stage
The reset switch serves to initializes (reset) of the active in
the microprocessor (ICI 03 UPD751 12) which controls the
TUNER
and
CD block.
-. ...
(1) Disconnect
the power cord from
the AC outlet.
(2) Keep the Reset Switch (S1 301) depressed for about 40
seconds. (The backed up electrolytic capacitor is
".-,
. .. . .
... ... .
discharged
by keeping the Reset Sw;tch dep~essd
depress for about 40 seconds.)
(3) Reconnect the power cord to the AC outlet.
(4) Press the TUNER and CD operations, and check their
operation.
*
k—————l
SW2 = ON
to YES
4: . . . .
1
n
/'
Reset SW position
00
I
Base
mechanism stop
I
+
End
.:
;.".
/ \
REAR PANEL (BACK
SIDE)
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