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Technics RS-TR979 - Page 19

Technics RS-TR979
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25
-6.4V
6.3V
33
V22
C616
10VI000
<:]"
",N
N;<
.",
I<~
AB
K
u
R55
22K
Iv'"
L6VI
~
I
~~C3311AOSTA
. REC BIAS
t C E A B F D CONTROL
A
B
C
D
E
B ESTP
flNG
!O EDIT)
~'"
-0
1<-
7. Bv
26
27
'"
28
.EI
REC SIGNAL
(Rchl IJKI
09,10 C41 R43
\
2SJI64PORTA 50VI 39K
;
L ch I
REC MUTE +
~
REC (IN)
-'" ~~ R ch ~
;1:!!! 1<",
'"
<DO
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~
C42 39K
t
J K I
IC4 50VI C43
M5218AL P R47 16VI0 ~ 0 L ch I
H.PHONESAM S60 """ PLAY (OUT)
C44 ~;1:::i --1
R4B 16VI0 .1. R ch
560 ,.
0'"
~::i
CN3
DMETER-L
DMETER-R
:1!VR+B
A 0 v R L
B ~ VRR
C ID0 SC
D tuLF/ADJ
@ pel ADJ
!) MSP
!OJ CLK
REC. 5.4V
To 39 page
DI5B
MA 165TA
D
B
A
C
E
CN4
:D DATA
D POF
lJ POWER
~ DMT
~ STaG
§j SC KC
1)SOAC
~ TAPE2
2JTAPE I
!OJ - B
To 39 page
3~I
0154,155
DTC 114ESTP
MOTOR SPEED
CONTROL
B A
D
G
H
E
R574
4.7K
0155
0156,/59
2SAI309AOSTA
MOTOR SPEED CONT.
TAPE SPEED ADJ.
lXI, DECK21
'"
~;:;J~
I
TAPE SPEED ADJ.
o;,.;~~Q IX2,DECK21
3.5V
OK
,.,.".",.
10K
OV
0'"
",0
-'"
1<-
""'
~
"""
~O !eO'!
1<- 1<'"
CNB
!J D2X2
D SPDA2
»SPDB2
~SPDAI
II SPDB I
.r--@ HP. GND
~HPL
ill HPR
G) SYNC
!OJ REMDCON
To 39 page
j
as
I
DTAI14ESTP
SWITCHING
1REMOTE J
RIB7
IK
JK2
SYNCHRO
EO IT
/
TAPE SPEED ADJ.
I X I, DECK I I
RI6e
10
RI53
l.eK
0157 .
MA IB5TA
<D'"
on"
0;";
JK3
OUT I
REMOTE
CONTROL
JK4j
IN
RIBI
10
-33-
.SCHEMATIC
(This schematic di~
new technology.)
Note 1:
. S601: Voltage selector
. Resistance are in ohms
1K=1,000 (0),1 M=1,0(
. Capacity are in micro.fj
. All voltage values shoy,
volume control at minir
( ) Voltage vall
For measurement us E'
. Important safety notice
Components identified
When replacing any of
.(~+B>-)I~
.(-.-8«-B:>OO--.) ir
. ( """""""""""'~~' ) ir
.( ~ )Ir
. The supply part numbe
Caution!
IC and LSI are sensitiv
Secondary trouble can
. Cover the parts boxes
. Ground the soldering i
. Put a conductive mat (
. Do not touch the legs
B
!'
A
B
IC411/211
I
"'0 I B
F
---1 I A
"0
:Q
C
CN5
I
+BII 1
2 GND
(11 +BIBKI
4.9V
0 +B121
I To 39 page
5.6v 0;54 r'-4.BV G:I +BISWI
ISR35200TB " 4.9V .r:-@ M. GND
1) FI
F2
-19.4V--'"
G)-vp
-
DIX2
R575
4.7K
Ref. No. Prodw
IC1 AN73
IC4
M521
IC302, 352
BA45

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