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Technics SL-P2000 Service Manual page 29

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| SL-P2000
Hi SCHEMATIC
DIAGRAM (Parts list on pages 49, 50, 55, 56.)
(This schematic diagram may be modified any time with development of new technology.)
Note:
eS1
: Power (1 OFF, = ON) switch and indicator.
¢ Important safety notice:
°$2
: Voltage adj. switch in "240V" position.
Components
identified
by AV mark
have
special
charac-
[For (GC) area only.]
teristics important for safety.
Furthermore, special parts
(110 V + 127 V «+ 220V ~ 240V)
which
have
purposes
of fire-retardant
(resistors),
high-
© $613, 614 : Skip (Kq<q SKIP BP) switches.
quality sound (capacitors), low-noise (resistors), etc. are
[S613: Kq<q, S614: DPI]
used.
When
replacing any of components,
be sure to
¢ $615
: Disc tray open/close (A OPEN/CLOSE) switch.
use
only manufacturer's
specified
parts shown
in the
¢ $616
: Stop (MM) switch.
parts list.
¢ $617
: Pause (§) switch and indicator.
¢ The supply part number is described alone in the replace-
¢ $618
: Play (B®) switch and indicator.
ment parts list.
© $619, 620 : Search (<<q SEARCH PP) switches.
[S619: <<, S620: DP]
=
¢ $751
: Disc tray open/close detector switch.
¢ The voltage value and waveforms are the reference voltage
of this unit measured
by DC electronic voltmeter (high
impedance) and oscilloscope on the basis of chassis.
| PartNo. | Production Part No.|
Supply Part No.
1011, 13
LM2940T5M
LM2940T5
IC602
RCDHC-278-E
RCDHC-278
;
;
Caution!
Accordingly, there may arise some error in voltage values
!
ae
and waveforms depending upon the internal impedance of
IC and LSI are sensitive to static electricity.
*The parenthesized are the values of voltage generated
repair.
;
:
4
during playing (Test disc 1kHz, L+R, 0dB), others are
* Cover the parts boxes made of plastics with aluminum
voltage values in stop mode.
foil.
ies
e
ma
6 (/ sam
§ € = € 6 = - 6Positive
voltage
lines
and
# Ground the Soldering iron:
e Put a conductive mat on the work table.
negative voltage lines.
* Do not touch the pins of IC or LSI with fingers directly.
: audio signal lines.
¢ Terminal guide of IC's, transistors and diodes
TC7SU04FT85R
AN8389SE1
AN8800SCE2
SSM-2141P
SSM-2142P
5
[rare [oP
ancoson [44 in
fun [oe Pin
M5238L
NJM4580LD
M5F78M05L
fonarar
| oF]
fwnenras [x2
funearsa
[x2 rn
I
8
LM2940T5M
RCDHC-278-E
TOTX174-A
28C3311QRSTA
2SA1547QTV2
LM2990T5M
UN4112TA
2SB1238QSTV6
UN4114TA
UN4211TA
UN4212TA
AS
B
32!
r2 34
Ge
2SJ148TPE2
2SB1357EFTA
SVD1SR35200V
MTZJ13BTA
2SK982TPE2
2SD2037EFTA
MA165TA
MTZJ24DTA
eS
MTZJ3R9ATA
4
Cathode
MTZJ9RICTA
A
Anode
LN013304P
LN014304P
LN0O18304P
Anode
Cathode
s—@=— ca

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