Technics SU-Z980 - Page 11

SU-Z980 SU-Z980
MOTOR DRIVE CIRCUIT
J80l FAN MoTOR
POWER AMP CIRCUIT
802 |
1ev 100
3
2
ne
4 él
ee! ey wane 25A684
Power:on
SV13205
eS
AAA
MOTOR
DRIVE
' nese POWER AMP 3v A) ov
i L ov CH ote Except For
4 -- -128V @802 4) 83 oH ae (EK, XA, XL) areas.
atk 2 «
4sec
fo}
m7
prs) -s 2SC 1740
= wes e801! Age MOTOR DRIVE
FL901 oe ve 28
902 ~910 D917~921
1$S254TA
LNO64448PH
RAO!
22K
.
a 4
\
RLY
9
h
i
j
k
16
26
36
46
56
66
7%
8G
F
F
Qagiz
~
915
7
OUT
Dc-C
=
08
Lech
2SC
1740
Jihgefde
ef
G}-—@)-—@)-
29)
(9)
(5)
(9)
(5)
C1)
|
|
||
oi
FL
DRIVE
3
a0o
DPR
,
MAIN
—
a bab 4s Wr 4 + |
8
Phono
signal
est
Rech
3 “i (Loch) ee
8
+
SPEAKERS
| R803 22K
ss
+
NS
ag
&
R511
10
!
Lech
gaa eh 7% cone ae L502 7
wolOlo
goes
2
ve
R805
3
od EE a2 ol hy | 3.9K R804 22k ° REMOTE
eLo}la
me
28
'
|
i R ch
of = | se]. |
é OR) & si
a ays | rey
g
oS
Bo
38
4
a
lab
z Bes go set eo a
3
3
-14
9}
3°
|
14.9V oO
ran)
a
-1.3V
ay
|
1
R552 10K ofr = 1
> i) Q551
Q551 2SA992 f
POWER SOURCE CIRCUIT RELAY DRIVE |
35
7
veo
pRWE
Na
EE
-
es
re
:
SYNCRO | | Vaov
a
-UME
INE
feted
20mv
ret
ie
ta
HEAD
PHONES
ODER
revere
a
oe
0
UT = era K Ipsec. div a a .
(ae
>
Se
8
-B/ANN
wa
Hw
£€
MLL
ae
ee
Q722
Q720
E
- g is k snare tis NS ee PS Sa. SS BOG mY eS DTC 114 2SC 1384
—+(9—() (JO) +9 —~ ——2) @ O—6)—8) STABILIZER REGULATOR
BV OV 48V VJ . v Ov 5.3V Ov SS —A~,-—
~ 0723 R726 4.7K
ale ae oa 1 SR35200TR 744
xx
2
rat fev 5.6V em !3.3V
} x90! a4
Bok 1 ene O.2psec.div.
- rom aa SPEAKER SWIT
a
al
an
V7
svoS3v20
JACK
CIRCUIT
s Qgl2 ae <j STOI{ POWER)
FE
nm
&
ES
of
ee
a
o=
=
NO
3
agi2
eS
ye
Ne
OTCII4 = Dive vi
$vDS3V20 tt A
SWITCHING 11 (2) <—
ba ° a (REST) A 4
0703 oe
x “37 38 SVDS3V20 £8
2
3s
SS
>
ss
AC
220V
&
a
So
a
re
(50/60H2
Zo ee
AR702
Ap704
AC
IN
5.6
i
Syose
veo
TERMINAL
es 0923 0922
=
LNO64448PH
LNO18397PH
MICRO
COMPUTER
CIRCUIT
CIRCUIT
ayn
eae
+8
—
Xm = (UNSWITCHEO)
-<)
Cm
@905,906
a907
a9i0
Q72i
sor
say
Re
9701
aie
oe
7
|
: >
70) DTC114 2SA933 2SC 1740 2S A684 eat [se 28D 1265 2SB94 | n
—Sys — LED ORIVE SWITCHING SWITCHING REGULATOR REGULATOR REGULATOR AGOUTLEN
WRSO.
(REMOTE
)
(REMOTE
)
=
|
(VOLUME ENCODER)
(2)}—~C)
(UNSWITCHED)
=
VOLUME
=
CIRCUIT
45
—16—