Technics SL-P250 - Page 48

SL-P250 SL-P250
Ml
REPLACEMENT
PARTS
LIST
(Electrical
parts)
10K
1/6
Notes
:
*
Important
safety
notice
:
bolus
;
SW,
NUMER
IC(2)
IC108
ANSSTT
1.C,
B.T.L
DRIVE
2
1/6
Components
identified
by
A\
mark
have
special
characteristics
important
for
safety.
When
replacing
any
of
these
components
use
only
SIG
EVQQS405K
SW,
NUMERIC(1)
1C104
LM2940T5M
1.C,
RESET
680
1/4
manufacturer’s
specified
parts.
S617
EVOQS405K
Sw,
NUMERIC(+
10)
TRANSISTORS
*
Bracketed
indications
in
Ref.
No.
columns
specity
the
area.
(Refer
to
the
first
page
for
area.)
Parts
without
these
indications
can
be
used
for
all
areas.
10K 6
S618
EVQQS405K
SW.
NUMER
IC(6)
S619
EVQQS405K
SW,
NUMER
IC(5)
S620
EVQQS405K
SW,
NUMER
IC(4)
$621
EVQQS405K
SW.
NUMER
I
C(9)
S622
EVQQS405K
SW,
NUMER
I
C(8)
EVQQS405K
SW,
NUMER
C(7)
Q101
2SA1S47QSTV2
TRANSISTOR
VARIABLE
RESISTORS
V.R, BEST EYE ADJ.
VR102
EVND3AA00B14
—_V.R,
TRACKING
GAIN
ADJ.
VR103
EVNDSAA00B14—-V.R,
TRACKING
OFFSET
ADJ.
VR104
EVNDSAA00B14
~—-V.R,
FOCUS
GAIN
ADJ.
INTEGRATED
CIRCUITS
SERVO
P.C.B.
VR105
EVNOSAAQ0BI4_V.R.
FOCUS
OFFSET
ADJ
1C11
1.C,
REGULATOR
INTEGRATED
CIRCUITS
.
:
vRI
IC13
SVIBAAS5GFT1
—
1.C,
REGULATOR
C.
SERVO
AP
M
xn
~
ee
V.R_
TRACKING
BALANCE
ADJ
10301
MNGG17S
1.C,
SIGNAL
PROCESSING
1C102
ANEITAS
LC.
SERVO
PROCESSOR
1302
SV1ECXKS5816M
1.C.
16K
RAM
1.C.PROTECTORS
RAI
EWS7MOA000Q53
RESISTANCE
UNIT
10401
MNISS4PEW
1,C.
SYSTEM
CONTROL
;
|
C
PROTECTOR
1c402
SVIBAASSSFT1
—1.C,
OPERATION
AMP.
(EK.
gen
re
sei
daa
C601
WNIS2611PEN
—1C,
FL
DRIVE
(PA
PE.
PC}
1C602
HC-MDI0E
1.C,
REMOTE
SENSOR
one
eee
iepeorecioR
-
‘
(EEK.
XL,
EG)
eer
la
Mi
NEW
SERVO
GAIN
ADJUSTER
(Servo
Amp.
Adjusting
Fixture)
(EB,
EH,
EF)
(PA.
PE,
PC)
a
a
ICP11
A
SRUNIS
1.C,
PROTECTOR
The
following
introduces
the
improved
version
of
the
current
servo
gain
adjuster
(SZZP1017F):
;
(EK)
ne
HC-MD12M
|.C,
REMOTE
SENSOR
icPi2
A
SRUNI5
1.C,
PROTECTOR
Part
number:
SZZP1094C
(EK)
ica
Siumieil-
tc
onrintaie
Features:
10803
SV!
LM833M
1.C,
OPERATION
AMP,
VR871
EVUNIAQISA15
_V.R,
HEADPHONES
LEVEL
(1)
Contains
all
oscillation
frequencies
and
output
adjustments
needed
for
focus
servo
gain,
tracking
servo
gain,
as,
Sues
cure
MP
and
tracking
balance
adjustment
(requires
no
external
oscillator),
a
ELEPKIROKA
=
CO!L
2)
Panel
indicators
indicate
the
best
points
of
focus
and
trackin
servo
gains
(no
oscilloscope
needed).
SVIHBONZI75
—|.C.
LPF
(ep
ELEPKIRIKA.
COIL
(2)
p
g
gains
(
p
)
1.C,
HEADPHONES
AMP.
(3)
Internal
power
supply
eliminates
the
need
for
power
supply
from
the
CD
player.
L873 ELEPKtROKA COIL
L901
ELEPKR47MA
=
CHOKE
COIL
on wan
2SB1240-P TRANS! STOR
.
a12
2SB12380S
TRANSISTOR
L901
ELEPKRSSKA
COIL
47P
Q13
2SD1852-P
TRANSISTOR
B
0.01
0!
DTC124ES
TRANS!
STOR
1
OA
SLTDSKO65SC
POWER
TRANSFORMER
Power
cord
C
47P
0351
DTAI24EST
“TRANSISTOR
C
47P
0401
28D1862-P
TRANS!
STOR
TT
OA
SLTDS5KO66SE
POWER
TRANSFORMER
Servo
gain
indicator
SF
cap
402
2SB1240-P
TRANSISTOR
C
47P
50
|
a403
28D1962-P
TRANS
STOR
1i
100
63
Q404
2SB1240-P
TRANSISTOR
Tl
OA
SLTD5SKO67SG
POWER
TRANSFORMER
¢
—
180P_
$0
405
DTC124ES
TRANS|
STOR
B
=:
0,0047
50
0801
2S(3311A-O.
TRANSISTOR
Ti
A
SLTDSKO68SX
POWER
TRANSFORMER
if
47
&
aece
2SC3311A-Q
TRANSISTOR
cons 28D1450RS TRANSISTOR
0804 2SD1450RS TRANSISTOR
0851 DTAI24EST TRANS | STOR
862 DTCI24ES TRANS 1 STOR
0853 DTATI4EST TRANS | STOR
0854 OTCI24ES TRANS! STOR
855 DTA124EST TRANSISTOR
861 2SC3311A-Q. TRANS | STOR
662 2SA1309QRS TRANSISTOR
2SD1450RS TRANS I STOR
2SD1450RS TRANSISTOR
Test connector
(to CN102)
FL601 SADI2BT21GK DISPLAY
FI
A
GND
(to
chassis)
(E, EK, XL, EG)
(EB, EH. EF)
(Et)
FI
A
XBAZCO25TBOS
—
FUSE(250V.T250mA)
XBA2COI2ZTBOS
—
FUSE(250V.T125mA)
Oscillation
level
adjustment
(0.1~0.6 Vp-p)
Oscillation frequency adjustment
A
SVDISR35200A
DIODE
(XA,
XB,
PA)
750
Hz
A
SVDISR35200A
DIODE
(PE,
PC)
1,000
Hz
Oscillation
A
SVDISR35200A
DIODE
1,200
Hz
frequency
:
4
SVDISR35200A_
DIODE
ESBE249V
SW,
POWER
1,500Hz
multiplier
Power
switch
A
SVDISR35200A
DIODE
SSRI87-1
SW,
VOLTAGE
SELECTOR
x1
i
Bree
Rone
[
X44
Tracking
On/Off
(Normally
use
at
On.)
aoe
DIODE
:
ON:
Servo
circuit
active.
A
SVDISR35200A
DIODE
sie
peel
os
TBBINEDER
i
OFF:
Servo
circuit
inactive.
A
SVD1SR36200A
DIODE
,
'
:
$601
EVQQS405K
SW,
OPEN/CLOSE
023
MAA062-H
DIODE
seoe
EVQQS405K
SW,
STOP
Mode
selector:
D401
MA165
DIODE
S608
EVQQS405K
SW,
PAUSE
1.
Tracking
Servo
Gain,
Tracking
Balance
Bae
reg
Bone
$604
EVOQS405K
SW,
PLAY
2.
Defeated
ae
fakics
ayes
$605
EVQQ.S405K
SW,
REPEAT
3.
Focus
Servo
Gain
$606
EVQQS405K
SW,
PROGRAM
e02
MATES
DIODE
$607
EVQ.QS405K
SW,
R.SEARCH
D603
MAI65
DIODE
$608
EVQQS405K
SW.
F.SEARCH
;
wad
D604
MAES
DIODE
$609
EVOQSA05K
SW.
RINDEX
With
some
models,
positions
1
and
3
are
D606
MAIE5
DIODE
S610
EVOQQS405K
SW.
F.
INDEX
reversed,
Refer
to
respective
Service
)
0607
MAI65
DIODE
S611
EVQQS405K
SW.
EDIT
Manual
for
the
switch
position.
ries
ee
Bree
$612
EVQQS405K
SW,
TIME
nate
aie
Bioee
$613
EVQQS405K
SW.
NUMER
1
C(O)
S614
EVQQS405K
SW,
NUMER
1
C(3)
Printed in Japan
—
23
—
—4—
H880912350KK