Read Panasonic SL-CT520EB / SL-CT520EG / SL-CT520EE / SL-CT520SG Service Manual online
·
This schematic diagram may be modified at any time
with the development of new technology.
with the development of new technology.
Notes:
S201:
Laser ON/OFF switch in ON position
(It turns ON with disc holder closed.)
(It turns ON with disc holder closed.)
S202:
Rest detector switch in OFF position
(It turns ON when optical pick-up
comes to innermost periphery.)
(It turns ON when optical pick-up
comes to innermost periphery.)
S310:
Hold (HOLD) switch in OFF position
S801:
Play/pause (
) switch
S802:
Stop/turn off (
,TURN OFF) switch
S803:
F.skip/search (
) switch
S804:
R.skip/search (
) switch
S805:
Volume control switch (VOL-)
S806:
Volume control switch (VOL+)
·
Important safety notice:
Components
identified
by
mark
have
special
characteristics important for safety.
Furthermore, special parts which have purposes of fire-
retardant (resistors), high-quality sound (capacitors), low-
noise (resistors), etc. are used.
retardant (resistors), high-quality sound (capacitors), low-
noise (resistors), etc. are used.
When replacing any of components, be sure to use only
manufacturer’s specified parts shown in the parts list.
manufacturer’s specified parts shown in the parts list.
·
The supply part number is described alone in the
replacement parts list.
replacement parts list.
·
Voltage and signal line
: Positive voltage line
: Playback signal line
·
Circuit voltage and waveform described herein shall be
regarded as reference information when probing defect
point, because it may differ from an actual measuring value
regarded as reference information when probing defect
point, because it may differ from an actual measuring value
due
to
difference
of
Measuring
instrument
and
its
measuring condition and product itself.
Measurement conditions:
−
−
−
−
AC adaptor is used for power supply.
−
−
−
−
Set the hold switch to ON.
−
−
−
−
The parenthesized is the voltage for test disc (1 kHz,
L+R, 0 dB) in play mode, and the other, for no disc in
stop mode.
L+R, 0 dB) in play mode, and the other, for no disc in
stop mode.
Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during
repair.
repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.
9 Type Illustration of ICs, Transistors and Diodes
B1ABMD000004
UN521LTX
UN5114TX
UN521MTX
UN5113TX
UN5215TX
UNR521000L
UN5114TX
UN521MTX
UN5113TX
UN5215TX
UNR521000L
B1CFHA000002
No.1
No.1
E
C
B
S
D
G
2SB1182TLPQR
B3AAB0000037
C
B
E
C
B
E
MN6627962JB
C0DBFFB00005
C2BBGF000595
C0DBFFB00005
C2BBGF000595
128PIN
48PIN
80PIN
80PIN
B1GFGCAA0001
Ca
A
Cathode
Anode
MA8056MTX
MA8120MTX
MA8120MTX
A
Ca
Anode
Cathode
C
C
E
E
B
B
C3EBCG000096
C3ABMG000207
C3ABMG000207
8PIN
50PIN
2SB709ATX
B1GBCFJG0004
B1GBCFJG0004
MA111TX
A
Ca
Anode
Cathode
10 Schematic Diagram Notes
14
SL-CT520EB / SL-CT520EG / SL-CT520EE / SL-CT520SG
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