Technics SC-CH570 Service Manual

RS-CH770
mene © Positive voltage line mum © Playback signal Line eae Recording signal Line
4.9V.
fe) A T 8B UP
Q810 Q812 Qs807 Q809 Q811
DTC143EUT107 DTC143EUT107| 2SB621RSTA DTC143EUT107 DTC143EUT107
SOLENOID DRIVE CONT. MOTOR SPEED CO SOLENOID DRIVE SOLENOID DRIVE CONT. MOTOR SPEED CONT. eae
(12.8V)
13V
2SB621RASTA
SOLENOID DRIVE
Q803
28DS592STA
MOTOR DRIVE
MECHANISM CIRCUIT (DECK1)
(P.C.Board:on page 25)
DTA143EUT107
MOTOR DRIVE CONT.
=o
1C951,952
ON2180RLC
PHOTO
INTERRUPTER
39K
Care
AN
(DECK 1)
R821 R804
12K
470
2SB1218RATX
MOTOR SPEED
CONTROL
VR801
5K(B)
MECHANISM CIRCUIT (DECK2)
(P.C.Board:on
page
25)
TAPE
SPEED
ADJ.
( x1,DECK1)
R971
680
Q804
2SD592STA
MOTOR DRIVE
aod i: a CAPSTAN
on =.0 or OR =
BS Bu 4 Bo au (DECK 2)
z & «
0.7v DTA143EUT 107
2 MOTOR DRIVE C ONT.
R973 g
39K 2S
IC971 C972 s cS) Vy
c Fis Sg 12.7V OK
& 4.9V — « (12.1V)
G)
@)
Sxs
gal
|
Qa802
@ sx cae c% 2SB1218RATX
7 g ga MOTOR SPEED
ex CONTROL
(3) (1) U
1C971,972 TAPE SPEED ADJ, | TAPE SPEED ADJ.
ON2180RLC ( <1,DECK2) " ( x2,DECK2)
PHOTO INTERRUPTER
-~21-
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Technics SC-CH570 Specifications

General

Brand	Technics
Model	SC-CH570
Category	Stereo System
Language	English