Technics SL-PG200A

_ SL-PG200A
MINTERNAL CONNECTION OF FL
¢ Grid connection diagram
e Anode connection table
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PS (16) a
SCHEMATIC DIAGRAM
(Parts list on page 31, 32, 38, 39.)
(This schematic diagram may be modified at any time
with development of new technology.)
Notes:
¢ $613 : Play (® PLAY) switch.
° S614 : Skip (Kq<q SKIP) switch.
° $615 : Search (<< SEARCH) switch.
° S616 : Program (PROGRAM) switch.
° $617 : Disc link (DISC LINK) switch.
° $618 : Auto cue (AUTO CUE) switch.
¢ $619 : Stop (I STOP) switch.
° $620 : Skip (®PI SKIP) switch.
° $621 : Search (®b SEARCH) switch.
° $622 : Recall (RECALL) switch.
¢ $623 : Tape-side select (SIDE A/B) switch.
¢ $624 : Random play (RANDOM) switch.
° $625 : Time fade (TIME FADE) switch.
© S626 : Disc holder open/close (A OPEN/CLOSE) switch.
¢ $627 : Pause (Il PAUSE) switch.
e $628 : Repeat (REPEAT) switch.
° $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.
° S651 : Power “STANDBY & /ON” (POWER) switch in “on”
position.
¢ $1001 : Tray (OPEN/CLOSE) 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.
Accordingly, there may arise some error in voltage values and
waveforms depending upon the internal impedance of the tester or
the measuring unit.
* The parenthesized are the values of voltage generated
during playing (Test disc 1kHz, L+R, 0dB), others are
voltage values in stop mode.
¢ Important safety notice:
Components identified by A mark have special characteristics
important for safety. When replacing any of these components,
use only manufacturer’s specified parts.
10891 SVIBA4560FT1
———— | —--- : Positive voltage lines and negative
voltage lines.
as : Audio signal lines.
Caution!
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.
¢ Put a conductive mat on the work table.
¢ Do not touch the pins of IC or LSI with fingers directly.
SL-PG200A SL-PG200A
2
OPTICAL PICKUP
FOCUS
3
RADIAL
COIL MOTOR 2 LASER | 4,
ZN
(1) 6) ¢ Ommmmn(;)
Fy servo CIRCUIT
eA
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Q6502
532213044349
ok
(BC635) Laser
LASER AMP. power adj
106504
(172)
C2562 R3563
0.33 56K
Sms.2V/DIV
R3567 C2561
Tov 82k | 047 = 1.5V/Q6502 | 220P
C2520 | A3524
R3562
120K
4700P
FOCUS
Cc. NORMALIZING
e500 CIRCUIT
LASER
SUPPLY
Q6507
(BC848C)
DETECTOR
Focus offset adj.
VR3569 22K
532213042136
GAIN
CONTROL
a EE
HF
OETECTOR
T
106504 |(I/2)
06505 06506 | -7.7V Ja
{t
2550
0.015
R3552
820
H27C2 HZ7C2\
1C6504
482220972587
(TCA0372DP2)
FOCUS/RADIAL DRIVE
R3554
2K