Technics SU-X933 Service Manual

_21 22 23 24 25 26 27 28 29
m@ SCHEMATIC DIAGRAM
(Parts list on pages 25~30)
| ~——Phono signal (Lch)
1302 3x R30 | Vie. 47K,
nie Svs i Saker (This schematic diagram may be modified at any time with the development
cnet t Sox bd 4 of new technology.)
3 Bs 28 rae avd at 0302 |
in 2 leo. Notes:
7 D301~ 304 Eee ae eS1: Power switch.
> scene eS2: Voltage selector switch in “220 V” position.
Lé O-~O * (110 V/127 V/220 V/240 V)
Sige sik ov ov Yow 8 For (GC) area only.
b Wee - - eS601A: Surround-sound switch.
ONS ze 2s ee Gear 0304 Q301,302 ©S601~604: .
BES C302 . 2SC331|AQSTA S610: Input selector switches.
SUPER CRASS AM ieee : PHONO, S602: TUNER, S603: AU
ais S604: TAPE, S610: CD
aa ©S607, 608: Balance control switches.
Pa let (S607: Leh, S608: Rch)
ee ese eS609: Audio muting switch.
€325, SOV! meses: GD Phono signal line = =<" Recording signal
as wz) Phase difference signal mum Super bass signal
34a 47k —_ >= Positive voltage line -~<<_ >-Negative voltage line
ee =
Rice fae T90F | c308 160? J cap covet f (Ea ets Bs : ol ge * Indicated voltage values are the standard values for the unit measured by
SV13102B 3a.L85 R324. 220K gose TSE tak) aan the DC electronic circuit tester (high-impedance) with the chassis taken as
me ot . .
Siac oe Ee Bls poser ey standard. Therefore, there may exist some errors in the voltage values,
depending on the internal impedance of the DC circuit tester.
e|mportant safety notice:
Components identified by A\ mark have special characteristics important
for safety. When replacing any of these components, use only
manufacturer's specified parts.
pale
=
ee
eT
lea
ee
eee
oes
4501
Ks03
503
505
«R533,
“SII
;
oO
ee
el
oa!
Dene
ne
“Caution!
R328 wx
Ow.
i B38
C326 S50VI
TONE AMP.
OOP 'ev22 12k 0047 > ‘| > 0
:
,
Lah
;
@
|
IC
and
LSI
are
sensitive
to
static
electricity.
oi 0) oh % (| Secondary trouble can be prevented by taking care furing repair.
‘
iS
6
|
*Cover
the
parts
boxes
made
of
plastics
with
aluminum
foil.
L502 : te
osoa levee ‘Tek 7 |ie'to doat For CEG) area, © Ground the soldering iron.
2salsosaasTa
LN
xsi2
0
ia
1
Y
*Put
a
conductive
mat
on
the
work
table.
MOTOR
ORE
Sarena
*Do
not
touch
the
legs
of
IC
or
LSI
with
the
fingers
directly.
5
Q505
Bla
|
88
38
|
38 2SC33IIAQSTA ge | FE (Sel ssl HEADPHONES
BE
MOTOR
DRIVE
83
¥8s¥
7
POWER
Power
Source
For
(GC)
area.
| a
9505 Seto, | om | SWITCH
ste aud ENOEN Wee “pe iy } CIRCUIT
ae Py mane a 188 Ssl | J
gs
fro
33g
@
pe
LL
MY
(OMCONNC)
bod
* ox M501 ch Rch Leh Rech
Be Beg Lspeakers~ -SURROUND— é5 @)
Be eee oor A (8160 ) SPEAKERS
7(
wf
20
RE
a
(8~16Q)
@))
For
(EB)
area.
!
s 2 GiRGE een
8 5: G2)—O~_9 i Ac ouTLeT |
rd . et = ii oe eS rte ( SWITCHED )
=
Be.
s
R
(8)
oR
TI
es
<f
el oe eee I :
g 2 1 For CE,E5,EG
5
:
=
al
ie
fie
ES
g
4
ON
0
—{
2)
@0
A
|
io 8 AC OUTLET 1 A
%
@
2
a
(
UNSWITCHED)|
5 Kee “3 pe A eS 4 AC OUTLET
ook
1
(UNSWITCHED)
,
5
bs
1
Kore
A705
|
“
MAI67TA
MAI67TA
2SBI
(85EF
1
3
|
C|
A
REGULATOR > + ()}—-€3) @3) <
Bene es i a a) AC 220V---CE,E5,E6)
AC 240v--- CEB,GN)
(50 /60Hz )
o
AC 110/127 /220/240V
AC
IN/
AC
OUTLET
(50/60Hz
}
al TERMINAL CIRCUIT
-13—

Technics SU-X933 Specifications

General

Brand	Technics
Model	SU-X933
Category	Amplifier
Language	English