Technics SU-A80 - Power Supply PCB Component Layout

(This P.C.B. is available in two types @ and @ for the convenience of manufacture. Q) or q@ is printed on the P.C.B. So,
check the type of P.C.B. before referring to the diagram shown here. The circuits of types @ and @ are not different from
aa OUTPUT AMP/DC SERVO/POWER SUPPLY P.C.B. each other.)
PRE OUT
Al VIDEO SIGNAL INPUT SELECTOR P.C.B.
|
®
a
[SUPER TREBLE| [OPERATION|
a |
fe)
ied
Zz
=
8 POWER SUPPLY
& &3
rad
as
ma
Ww
$
I
=
a
Ol,
ul
Ts LE |
|
°
4 wf § e& ¢ @& os? oF Str ont <q
9
5
"
i
.
%
j
i
——
il
x
ae
;
a.
1c
a
8
i
fos
|
Oa!
\e
ao
dap
ee
INPUT
SELECTOR
SWITCH/IND.
P.C.B.
o socom - oe ' : fin me Dpoeete iim we Loe r — |
rt
\ot?
,
a
.
8
r——@
at
He
ert
Ai
TAPE
2
TAPE
3
VIDEO
a
oe
>
.
_
TAPE
|
/VTR
7DA
TAPE
7
AUX
|
7
we
4)
Ww
56.
3258
| (me io we
al
z
7
ir
wu
=)
a
-
fe) be
z
in
-
5
’ ert p a
5 a .
Li
ao
=
(2!
d
(tape
|)
(tape2/VTR)
(tape3/DA
tape)
(video/aux
|)
<
oO
2 [p) RECORDING OUTPUT SELECTOR SWITCH P.C.B.
°
Lek
fw]
uw
le
a) o |&
a
E
uu
z
oe
fe)
ad
ro)
a
oc
Ww
Ze
=|>
a
ju]
ra
B
3
Z
a
=
5
cc
ro)
ul
oO
5
is
r@®
me
A752
4
jz]
°
Ke
<
a b
i
>
o
:
ro)
°o
2
"nateete
w
_
TONE
CONTROL
a