Technics SL-PG200A - Page 18

SL-PG200A SL-PG200A
1 2 3 4 5 6 7
Mi SCHEMATIC DIAGRAM
(Parts list on page 31, 32, 38, 39.)
OPTICAL PICKUP
(This schematic diagram may be modified at any time Fotus AaDIAL + 35 y 9 + + t
with
development
of
new
technology.)
A
poaese
MOTOR
tasen|
4
S7
=
9
Notes:
° $613 : Play (> PLAY) switch. mms Ommmm(
° S614 : Skip (Kq<@ SKIP) switch. FAY seRvo circuit :
S615 : Search (<< SEARCH) switch. BEeee © @ ® ©
° S616 : Program (PROGRAM) switch. 532213044349
° $617 : Disc link (DISC LINK) switch. (BC635) on 26
¢ $618 : Auto cue (AUTO CUE) switch. Se[ pes
° S619 : Stop (Ml STOP) switch. sete ce 33
* $620 : Skip (DI SKIP) switch. fcéiaca=.- rasser e356 . entree |
° $621 : Search (®b SEARCH) switch. TOY Ae ite =] czsis | Be ie tle
° $622 : Recall (RECALL) switch. B 3 2s a
¢ $623 : Tape-side select (SIDE A/B) switch. fs eh | ee
° $624 : Random play (RANDOM) switch. 3s
° S625 : Time fade (TIME FADE) switch. a: 28 |e
° S626 : Disc holder open/close (A OPEN/CLOSE) switch. sree koces 1 coe NORMALIZING ge
¢ $627 : Pause (Il PAUSE) switch. O3RF EE K:a |) 4TOOP open ret a
° S628 : Repeat (REPEAT) switch. +{cSitos |
° $629 : Clear (CLEAR) switch.
¢ $630 : Edit tape length (TAPE LENGTH) switch.
° $631 : Time mode select (TIME MODE) switch.
° $632 : Peak level search (PEAK SEARCH) switch. DETECTOR SCiReutt
° $651 : Power “STANDBY © /ON” (POWER) switch in “on” Cc a FO as 1C6501
position. yere(gy 6) i 482220973234
¢
$1001
:
Tray
(OPEN/CLOSE)
switch.
ls
ohn
|
z
TDRSS
OST
e
The
voltage
value
and
waveforms
are
the
reference
voltage
of
this
inurl
t
i
zs
Y
|
SIGNAL
PROCESSOR
unit measured
by DC
electronic
voltmeter
(high
impedance)
and
A
ie
af
hos
Or
34
oscilloscope
on
the
basis
of
chassis.
Sasa
egasise
887
ox
eT
22K
328
oO)
)
Accordingly,
there
may
arise
some
error
in
voltage
values
and
(BC848C)
gle
i
roy
®)
waveforms
depending
upon
the
internal
impedance
of
the
tester
or
catia
|
]
S
the
measuring
unit.
a
Kio
*
The
parenthesized
are
the
values
of
voltage
generated
Focus
offset
adj.
i
a)
during playing (Test disc 1kHz, L+R, 0dB), others are ; : @ -O-
voltage values in stop mode. D on ATER ny : S
* Important safety notice: sms 2v/01V oo oe [reves o>)
Components identified by A mark have special characteristics 0.5 ys.0.2V/D1V. asia b G;
important for safety. When replacing any of these components, AgSat cy : 5
use only manufacturer’s specified parts. ite melt we) roses «2589 ae cream (1) J
_———_
|
—---——
_:
Positive
voltage
lines
and
negative
E
482220973235
voltage
lines.
(TOA8809T)
: Audio signal lines. 138804 OreNhceabecesae
2220972587
Caution! (FOCUS /RaBIaL DRIVE
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
¢ Cover the parts boxes made of plastics with aluminum foil.
¢ Ground the soldering iron.
e Put a conductive mat on the work table.
¢ Do not touch the pins of IC or LSI with fingers directly. F
O.5ms.2V/Div_
4