Technics SU-X955 Service Manual

|
Ref.No. | Removal of the power transformer Ref.No. | Removal of the power IC and regulator m@ BLOCK DIAGRAM
9 10 transistor :
a
Procedure | 1. Remove the 4 screws (@~Q). Procedure | 1. Unsolder the power IC or regulator transistor.
1—>6—8-—9
|
2.
Remove
the
fiat
cable
(J700).
1—8>10
|
2.
Remove
the
3
screws
(Q@~®).
es
‘cau
EQUALIZER AMP oe INPUT SELECTOR
(7)
oe
el
wu]
Xt
|X
2
[X38
|
x4
|
x5
|
x6
|
X7
[XB
Sy ae id PHONO SIGNAL eT ea ae o* _
Z
a
car
a
|
Te
eeoeene
Bi TAPE | — | ~[— Ton — {on | —
cS) ¢B) Tare2|—{—| —| —] — [ow [on | —
pat [~j~|~[-]~[~|~Jon 1
TUNER ¢g
TC4066BF
{ } indicates pin No. of right channel
CD INPUT SELECTOR
Regulator
Reh
Z
transistor
AUX
g-e
9
DAT
i
6
REC
OUT
or b
oa
oe
c
(3)
TAPE!
“REC
OUT
e-
e@When
mounting
the
power
IC or
regulator
out
transistor.
EXT
Apply
silicone
compond
(SZZOL15)
to
the
rear
aa
side
of
power
IC
or
regulator
transistor.
Fader
pe De
ee
TAPE
2
Ref.
No.
Removal
of
the
fan
motor
3.
Insert a
screwdriver
at
the
root
of the cooling
fan.
Force
it
~
REC
OUT
g
0203.
sd
11
out
of
the
motor
shaft.
iSdi
<
|
5
d
=e
puireutined
tor
(207
———
4.
Remove
the
motor
cover
by
used
©
screwdriver.
re
pe
.
ie
2
R
oC
ke
-
tae
ore
).
5.
Remove
the
motor
from
the
fan
casing.
From
transtormer
+
Fresozp
cer
|
ficoos)
es
p
ABOVE ISS
Claw:
6.
When
mounting
the
motor
fan,
align
the fan
casing's
ee
ct
projection
with
the
hole
of the fan
motor.
eee
2
ie
Ee
ee
eS
eS
START
14
or
fog
2
e
4
TURNTABLE
)
\
9
STNCHRO
REC
ae
noe
.
STOP,
:
STOP
SYNCHRO REC
SYNCHRO START Hl co
ee ae
(CD) A SYNCHRO START 12 cD SY
—
y &
2622 7 |
{area}—- page I are ae
DECK DIRECT OPERATION aes
{TAPE 1)| SX) syncwrRo REC OUT ! {
= = t : i f 2602
| Switching
‘ | SURR
ine REC CONTROL (TUNER) | 3
CONTROL = aN 's610 a
S.BASS
‘
D627
!
me
© GB) Gee! 0647 pei _ 260! YM3623B a
» { TUNER) |(2) +<p-—+4<}- +44 . KEY MAT!
G)
D648
|
1c805]
DIGITAL SIGNAL PROCESSING
Cooling fan
io Seo ae ee wg ae ge YS qq
Crysta! osc
= - bw
1C804 select | generator 15
£ veo 8
INPUT SELECT (CD/DAT) 3} a '2
SvitoRnine TC74HCUO4AF G)
1C 803 a Phase
Fan motor a 1C801 L'C.803] 16 8 aa H dif ference det |
\ OPTICAL RECEVER WEE TES ars q l
sae Renae ae ne, a gerrafor (laren)
Cc na > | >° 144 oO. va! I
soe a : | she | D 4 Yeee[S/P Converter |
iL | |
b
I
of
|
| !
Lao
H
Latch
|
Ee
ee
ee
ae
(2
pigitaL. ~—- SVITORXI72 | 14 | \ y
tNPUT
[ic
802]
|
|
I
|
|
Fan
case
pentane
recon’
be
es
eke
O—4
\
.
3
‘
\
15
O-+
21
Rear cabinet Projection ls comemmee age ahaa es : t
L 1
Fan
motor
Lan
=
pat
|
MoT
gy
1
DN74LSI45S|
|,
I
| Ia | 7 4 1 s I
(a select | | LED DRIVE
©) I i hohe (aes $A Ss 4
= 4 pezo f— zi 24 6
——— 44 1kHz |
(To D/A CONVERTER CIRCUIT)

Technics SU-X955 Specifications

General

Brand	Technics
Model	SU-X955
Category	Amplifier
Language	English