Technics SU-Z65 Service Manual

10
11
12
13_
14
15
16
17
FL
METER
CIRCUIT
Mi
SCHEMATIC
DIAGRAM
Reset
switch
IH
160s
SVITA7SIBP
wren
au
SUP
25030A
(
This
schematic
diagram
may
be
modified
at
any
Instantaneously
time
with
the
development
of
new
technology.)
short-circuiting
switch
SPEAKERS
jee
| MAIN
Rech
Notes:
1. This is the basic circuit diagram (For continental
aa
PF
et
can
Europe)
of
this
unit.
(N)—O—)
Note
that
part
of
the
circuit
is
subject
to
change
depending on the areas.
2. Regarding the circuits to be changed in the basic
circuit diagram (For continental Europe) and
related areas [EF] , [XL] and [XA],
refer to the separate service manual (Order No.
$D82052184C8—A),
3. $1-1 ~ $1-3: Input selector switch in “phono”
Position.
aaa
(S1-1:
phono
$1-2:
tuner
$1-3:
aux)
ae
4.
S2:
Tape
monitor
(tape
1)
switch
in
‘‘source’’
Position.
source <—> tape 1/dubbing 1 » 2
=
5.
$3:
Tape
monitor
(tape
2)
switch
in
“source”
Position.
source <—> tape 2
6. S4: Loudness switch in “off” position.
7. $5: Subsonic filter switch in “off” position.
8. S6: High filter switch in “off” position.
9
0
1
Meter adj.
R601
A\r503 10
te 601 =SVIHAI2010
FL ORIVER
REMOTE
+47.0V Line
O70)
Rech
J
‘ice
]
+20.0V Line
4.7K 20.6 0601
2SC1913
3 STABILIZER
i=]
o6oi
MA l200TA
. $7: Main speaker switch in “on (main)” position.
. $8: Remote speaker switch in “off” position.
- $9: FL meter range selector switch in
“X0.01" position.
X0.01<—> X1
12, $10: Power source switch in “on” position.
13. $11 ([XA] area only): Voltage selector switch in
"“240V"' position. (Refer to booklet contain)
120V <> 110V <> 220V <> 240V
14, Cc] Indicated voltage values are the standard
values for the DC electronic circuit tester (high
impedance) with the ground point taken as stand-
ard. Therefore, there may exist some errors in the
voltage values, depending on the internal
impedance of the DC circuit tester.
15. The parenthesized value is the voltage when the
supply voltage is shifted to “low” with the power
supply tap chage relay (RLY302) turned “on”.
° SUP25010A
.
OF)
—
4
q
(38.3)
1
1
]
+47.0V Line
—47.0V
Line
-
ef
(38.3)
—47.0V
1 | 1 |
|
i} ! !
|
|
| | | | |
| | | |
| | | |
|
| | |
i} i] i]
| | | | | I
I | | 1
|
LY
I
if Phe t
nies
AW
A\rsos wee
By
e302 9303 ~ 305 <
2SC1845 2SA564AN
SWITCHING SWITCHING &
SIGNAL GENERATING
CIRCUIT SWITCHINGE
ic 301
AN6552
VOLATGE COMPARING
0505
SVDSRIK2
9306
2sA 922
RELAY
c50l
S6V6800
D301 ~ 309
OMAI50
FL SADBG89Z
FL PEAK POWER METER
F—Filoment
to
a
120
———
Lehonnel
segment
16.
|
Ih
tb
~
12d
——=
Rchonnel
segment
17,
E>
Positive
(+B)
voltage
lines
.
18.
mmmap
Negative
(—B)
voltage
lines
|
ly
19.
Important
safety
notice:
\
Components
identified
by
A
mark
have
special
\
characteristics
important
for
safety.
When
Phono signal lines of left channel
cso2
S6V6800
R3tl 820
LY302
SUP
25010D
SUP
25030F
SUP
25030E
:
\
srk
replacing
any
of
these
components,
use
only
:\\
Nig
a
TA
CoS
oS
=
A
manufacturer's
specified
parts.
8
\'9
€23—(5)
=
3
09
0}
—(09
£o}—Fo
A’
5
x ty
E7O1®
A
R501 10
- —15.3V
50 Line
>120+15.4V
Line
Ly ©,
Ox 6
> 4
IZ 2)
+t
(EF ONLY)
Avsor
A
AC LINE
AC 50/60Hz
220V
(For continental Europe)
240V
(For United Kingdom)
Acro: 0.047
)
0502
+
Avsos Agsa
SUP25030D
A
4
@)
@)
a
230 +15.4V a Reset
.
2
15.1V
TP301
TP302
2g
153)0—15.
:
33
3V
Lin
14.7V
Load
inpedance
Load
impedance
ieenee
:
fl
H
detection
(L
ch)
detection
(R
ch)
|
5 ay pa QV : D501 ~ 504
Q
OSv0S3Vv20
*The
part
No.
of
transistors,
IC
and
diodes
mentioned
in
the
'
RLY301
off
pa
rt
Ni
c
;
e—1_2.7v
A\
reo!
10
6.3v
330
schematic
diagram
stand
for
production
part
No.
Regarding
the
—1,8V :
part No. without @ mark, the production part No. are different
OC
from
the
replacement
part
No.
Therefore,
when
placing
an
order
for replacement parts, please use the part No. in the replacement
2
: parts list.

Technics SU-Z65 Specifications

General

Brand	Technics
Model	SU-Z65
Category	Amplifier
Language	English