Technics SL-P2000

| 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
tester
or
the
measuring
unit.
Secondary
trouble
can
be
prevented
by
taking
care
during
*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