Technics SL-PC25

10 11
B | MAIN CIRCUIT
15
16
17
Qa ~ 4i3
2SA 1309QRSTA
SWITCHING
(REST/ CLAMP/
POSITION)
O VIO.
{0.5V},
I1c401
MN 18712 4PKD4
SYSTEM CONTROL
ft
--0V
0.5ms.
2V/DIV
Ploy
CN301
(a 2)
b 2) 6) 10.4v $418 s4it
He
=
(RANDOM)
(DISC
1)
{
1
—
——
p41!
: % ro 0 1S$2547A
(
S417
$406
41
403
°
ft
(17)
q
(REPEAT)
(PROGRAM
epee
(msToP
|
)
g (6) b ciabes "EC /CONTINUE } paid ia BEE: Reiss p42
h (15) c 7-2. et Tr Pa], ee =a 1SS254TA b
i (14) d $409 $401
j (3) e (DISC 3) (Bm PLAY) Bais D404
To EY servo k (12) f ole h ia 71 1SS254TA aes
CIRCUIT(CNIO3) )I ‘oO 9 $416 $408 $402
(6)
h
(TIME
MODE)
(DISC
4)
(4H
PAUSE)
a
(9)
a
tos
at
1
D414
‘ ra i; a= tamed b ancd ISS254TA = ipace
Pp ge c S415 $407 $404 d ISS254TA
(TAPE LENGTH) =| ( DISC 5) (PRLSKIP)
q 8 pe ree 1 eae ete D415
r e Lane oA fee, 12 ai 1SS254TA
s (4) f a $405 Pt ®
REMOTE |r 3 d (Ke SKIP) D406
168
SENSOR
|u
(2
a
5S,
18S254TA
1 54TA
CIRCUIT Y C1) b. s4ig 3414 ed
(DISC SKIP) (AUTO LINK} (DB SEARCH)
1 —— —1— —— 0426
HOcMDIOE oy hema] =a 0° 7 ISS254TA
REMOTE_CONT. $413 a
Z cao cues (44 SEARCH) seis
ro all ISS254TA
| nJ
|
4.9V
© €
1
(3)
| ae a
b
c
1c404
d BA6247N
MOTOR DRIVE
1C404
“12, IV{-11.5V)
2855 | R436 22K
car
roy °
o 02
:| 2 g—a
D420
1SS254TA
- a See
x
a
2
MOTOR z
CIRCUIT s
g
z
Fc45\ cN451
o—{1} {1) g BG | .8
$451 i La L451 R439 8] $3
(CLAMP) 1 oy 3.3yH 10K | 55
—— 0423 = °
nt a -.9V 9
oh
(-115¥)
ox
icone OO) cutest zeta °
MoToR)
(4)
3
:
=12.1V
= [S| x 0423 0415, 416
2eFesc 2SAI3Z09QRSTA UN4212TA
E | SENSOR CIRCUIT 2 SWITCHING SWITCHING
sEl¢g
+E =
= &
451
SVDGPIS53 L454
POSITION SENSOR FC452JICN452) 3.3 pH
44) <5] 4.9
r @—®
g (base ; })
p6Pisss 1 QY
REST SENSORI 2-2)
L
Pye Te ay
ES gt te
87 73
vt s
oO oO
FL DISPLAY
FL40!1 (RSLOO49-F)
e
hl
OV
d
L|
ov
loms.
2V/
DIV.
es
|
10.4V)
OYE
4
Aov
:
area
és
e=iBy
=25.2v
re
OU
nye
ee
0.5ms.
1OV/DIV.
©
t
2
.
4.9V
/
<=
~25.v
dh
,
ob
49v
/
225.
SV
14)
|
-
;
°
25.2V
4)
06
RESET
Qo
wana
nna
n
25.2N49)
7
SENSE
QQ
pees.
A
a)
Q405
‘a
.
anaes
Hie
:
G2
os
REC.EN(O
aN
d
veiw
mute
Qpeeuiolv)
eri
ee
EA
‘
-4V
Q404
abed
2
4.8v
ze?
-3.8V(-18.5V)
||
5
4.8V,
4.9V
a
4.8V
g
Gee
cae
f
T
ON
2403
e
:
-27V
-
|
wt
—3.
8V(I-6.5V)
Hi,
—
R409
4.7K
4.
“
eeesecaa
(-9.5V
;
2
Q402
|
10
sv-265v0
|
en)
-3.8V(-9.5V)
|
OH
|
asvi-sev_
R410
4.7K
4.9V
68)
L
(-9.5v)
-7.2V
Q401
EGY
~7V(-9.5V)
[
aes
ie
bn
2.2v
Q401
~
405
UN4212TA
C410_
50VI
FL
DRIVE
H
Q407~ 410
UN4112TA
MOTOR CONTROL
--- BV
--- OV
-2 BV
0.5ms. 1OV/DIV.
Play
-o8V
1c8
ov
MN
20ms.
2V/DIV
DIG
aD
1c351
BA4558FTI
RESET SIGNAL
GENERATOR
Zz
= ts
nm mx
on TH
Poh «em
as 10351172)
1.3V3 D431
1$S$254TA :
-
—10.8V
R432
.)
2
wo
bh
(-10.5V)
100
ha
043)
= 19x
z->
ge
UN4212TA
Q43! SWITCHING
(RESET)