Technics RS-M250

“
38 37 36 3 34 33 32 31 30 2 Zz 2] 2 4 23 22 21 20 19 18 7 16 15 14 13 12
ee NERD “oat CIRCUIT BOARDS
ERD... Carbon ECcGO ..... Ceramic
ERG --- Metal-oxide ECKO«...- Ceramic
ERO --- Metal-film —ccO-.-.- Ceramic
ERX --- Metal-film ECFO ---.- Ceramic MAIN A M P CIRCU IT BOARD
ERQ --- Fuse type metallic ECQM ----- Polyester film
ERC
---
Solid
ECQE..--.---
Polyester
film
Q23,
24
ERF----
Cement
ECOQF
.--.---
Polypropylene
2SD636H
(S,
R)
ECEO
-----
Electrolytic
Q22
(2SD636)
Q25,
26
:
ECEON
---
Non
polar
electrolytic
Q20
2SD636H
(S,R
2SD636H
(S,
R)
Q27,
28
poate
:
A
indi
ont
's
specified
ECQS-...----
Polystyrene
sR)
»
R)
,
Ic2
UP
Q202
Q204
wert
rl
hl
gy
safety.
eesti
tare
2SD1010
(R,S)
(25D636)
(28D636)
280638
(S,
R,Q)
Fj
ere
86H
2SB641
(S,R)
Q203
Q212
Q211
2SD636H
(S,R)
Q214
Q213
oe
Q17
2801010
(R,S)
C[6.88V
C19.61V
CL10.7¥
C[
16.
3V
cl
210.77V
16
saa
C]18.8v]
28B641(S,R)
2SD636H(S,R)
258641
(S,R)
(2SD636)
2SD636H
(S,R)
2SD636H(S,R)
»S)
[BT
7.47V
BI
6.87V
BI
2.8V
BL
10.
7V
[B[0.67V]
3[9.70V]7/
0.77V.
Bl
18.
2V
8]
18.8v]
(2SD636)
Bl
8.08V
[18.3V
(2SD636)
(2SD636)
f
E]6.86V
E[6.88V
Et
6.26V
E]
2.
15V
€[10.1V
A
—
y
[4[as.sov[sti.a2v
e[ig.9V}
[efig.9v]
[CL
8.08v
ef
8.
15V
(BL0.1V
B]0.66V
C4.
56V
E
ECQMIH472JZ
2SB642
eno2sri992
—_[o39'40
|
ecgwinssaiz
310
|
280637
O78
2501010
(Rs)
______
ay
Fe
eee
eR
Ne
ol
OSA
2a
A
|
Ee,
en
(eee
Z'
R1,2 ERD25FJ101 He panei acnisiat iors C109, 110 /QVC2121 ete pee BI 7.47V ' Qf ; nes sien eel — i vee
R34
|ERD25FI682
~—|Roap——|ERD25F/562
Q312,
313,
288835
ee
ev]
(oor
——
ft
Vey
4
RS,
6
ERD25FJ680
ERD25FI272
C43,
44
ECFDD104KXY
TRANSISTORS
Q314,315
|2SD965
'
2
vias
sca
SE
eee
ncaurcaannannertamaneN
ary
ay
—
oP
-
ce
R
fas
a
aa
cee
ERGrttnyo,
[C4546
|EGEAIHSIOO
|,
>
Sait
Q316,317
|2SD638
ilo
é‘
‘
=
—————
_—
A
KS
7
..
-
Rasien
vs
leansE
Ise?
bor
ERGIDANIIO2
[C4748
(fECEASOZRI3_
|
2sD965
0401,
402,
403,
404,
405,
406,
|
i
»
cog
R13,
14
ERD25TJ273
R246
ERD251J273
049,30
ECQM1H473/2
Q7,
8,9,
10,
11,12
807,408"
|
290945
Q21
2SD636H
(S,R)
u
R
R15,16 |ERD2SFIIO1 —fro4g ——jenxzanssne [>"> 9.9657.58 Pl asp6ag ie (28D636)
R17, 18 ERD25FJ100. R251 ERD25FJ332 ; Q13, 14, 15, 16, 17, 18, 19, 20 C] 19.6V |
R19,20 |ERD25TJ104 G59, 60: ECRDIHS2IKB 2801010 ea) ;
poroe: lenbaerier. | (Rese ERD25FI562 | C61, 62, 63, 64 Wie ua tet oe prea
‘
R256
ERD25FJ471
ECEA2AS®R2
pours
arr
be
R259
ERD25FJ272
|C65,66
—
|ECEASOZR22
D1,
2,3,4,5,6,
7,8,
i
ii
ie a ane R260 —|ERD25F182 —-|c67,68 ‘| ECEA2ASO10 a - a aad ~TMAI61 7
mas feomrene fa tmauzs foo craieo PPAF, foe trace
;
R
5
.
Re lhpveriece — (R269 —«EROZ5FU682 —|c71,72 —_ecKo1wioamp |03334.35, pees D13 RVDRDGR8EB are pele (RS)... 4
praia) R270 ERD2STIIS3 [073,74 ECEAICS221 Jong gy | dearae p14 SM112 k é
ee Terposti3a4 (R271 ERO26TII23 075,76 | ECEASOZR2 [> Fah DIS RVD1N4748 if 0
posit" tempore. (0202 ERD25FJIRO |C77,78 —_|ECEA1HS100 Dié RVDRDER2EB :
R51,52 |ERD25FI332_— |g eepiees 79,80 | ECEASOZR68_— qa 203 {258641 ae
55,56
|ERDZ5TIA73.
[hy
ERD2sFIse2
[C8182
|ECEAIHS100
|
9204
280636
sides”
aie:
IC3,
4
NE646B
2
83,84 |ECKDINIO2MD 0205 | 2SB641 : : (a. 50yy
ero2sriio2 [R275 ERQIAALIOOP — |083.84 ; 0206, 207 | 280636 023 RVDKB265E i na
Rave emoasrisee— |os7-a8[ecroDioanvy [0208 | 2sp592nes 2 is
R277
ERD25T/223
:
D24,
25,
26,
27,
28
o
e
nes-6s _[eRbastiena (R278 feRozarizan [082.90 jecrDDIoaxxy [A ene S- 54
R67, 68, 69, 70 lt Erpoerisep _|c91,92 lecropagakxy {0211 2SB641 :
erp2sTues3 [280 (ERD 25FIB22 og lecroDayakxy |Q212, 213,214 sac Na
mee ae came, fees lenimor [at do Battie . 4 - :
rae,90 erp2suaz1 «R284 ERDZSTIIZ4 feo |e opa7aKxy Pe eg 28D1010 (R, §) _
R93,
94
ERD25FJ392
R285
ERD25FJ122
101,102
|ECQP1122J2
2SD1010
nhl,
try
¢
SN
i\
7
a
ee
ee
ia
__\
\ R287 ERD25FJ562 j ;
R102 /ERD25T!333— logs = eRD257/223 C107, 108 | ECEA2ASO10 heb eee HIGHT EMIT TODES
ios, 106 |ero2sie21— |*222 ERDSSEAIGZ [Pega jane - M21 280946 LED301 | TLR206 -
n107,108 lerD2sFis62 22° Florey Q222 2801011 LED302 | SLT35GG /
Rios dio ini R296 ERD25TJ153 C113, 114 /ECQM1H392JZ 0223 2501980 L£0303 TLY206 |
RI11.112 [ERD25FI392 — (°297_—_—|ERO25F472 (CMOS Ol (0302 ___|2sB6a1 Q15, 16 | ¢ Q
Ri13.114 leRD2seis2 — |°298 ERD25AJ121P C202 ECQMIH473KZ 9393 304, 305 INTEGRATED ats 2SD1010 (R, S)_
R115, 116 /eRD25FI222 (P3387 «—«EROZSFUIRO. [PARC 280636 avy
R117, 118 |ERD257I333 Q306 280637 UPC1186H
i
R340
ERD25FJIRO
{C206
ECEA2ASO10
103.4
|NEG46B
|
R119,
120.
|ERD25TJ183
R347
ERD25TJ153
C207
ECEA1ES221
9307
2sB642
1c5
AN6870
i
Ooee tog [eRosesees— |Ra4B | ERD25TI273. C208, 209 | ECKDIH103ZF 2SD637 1301 | MN1400RS 0
R123,
124
|
ERD25FJ102
R349
ERD25TJ563
C210
ECEAIAS101
:
10303
DN6838
/
1
R125,
126
|ERD25FI152
|
356,
357,
358,
359,
360,
361,
JC211—ECEAICS221
R127, 128 |ERD25F682 | 362,363 |ERD1OTI473
R129,
130,
131,
132
R401,
402,
403,
404,
405,
406,
[C212
ECEA1ES101
Q7,8
i
ERD2srJ270
|
407.408,
409,
410,
411,
412,
|c213
ECQM1H683KZ
28D636H
(S.A)
-
R133, 134 |ERD25FJ6B0 413, 414, 415, 416, 417,418, |C214 ECEALES470 (2SD636)
R135,
136
leRo2srui21
|
“19
420.421,422.423,424
tc215
—_ECEALESIO1
7201
AJQLPDA9ELC
{AC
Power
Transformer
(BL0.69v)
R137,
138,
139,
140
ERDAS
|
Cay
ECQP
11832
:
sp
seme
ERD25FJ562
VARIABLE
C218
ECQM1H563KZ
COILS
i
&
:
iia
aebactic
R141, 142 |ERD25F102 RESISTORS |C219 ECQMIH333KZ | J 1,2 QLQM0333 Bias Trap Coil :
R143,
144
|eRD25TJ684
ivR1,2
~—lavKpMsoraza
|C220
ECEALHF100
13,4,
'|SuMiz19
MPX
Filter
|
:
1
ia
C[e.86v]
[eae
3]
20.0
R145,
146
|ERD25FJ562
eek
~
|
pee
nncene?
L5,6,7
|
QLOX0332K
—_—|
Peaking
Coil
i
cuuth
|
vy
Bf
0.8]
[|
6.83v]
[BIT
95v
R149,
150
|ERD25FJ472
©
|VR3.4
|
EVNK4AA00B24
[C222
ECEAZAS2R2
1201
QLB0198K
Bias
Oscillation
Coil
|
g
cL
\
Q210
EL5.67V]
le
11.36V]
HRD,
6"
"91
EYNKAAADUESS
L301,
302
/QLQZ10140
|
Choke
Coil
i
“
\
28D636H
(S,
R)
9209
219
R153,
154
JeRD25FI472
—|VR7.8
—|QWKGTAO24AI4
1223,
224,
225,
226
1303
ELEHIOIKA
-
|Choke
Coil
i
v
—
\(espese)
2SD946
2SD592VC
(S,
R)
R159,160
|ERD25FI180
—
|VR9
|
EVNK4AA00B15,
ECEA1HS100
1C1_UPC1186H
u
:
(2SD592)
R201,202
lerD2sF102
|YRI0
—«[EVNK4AAOOBI4
|c227,228
|ECEAICS472
SWITCHES
pe
i
\
O71V
R206
ERD25TJ333
VR11
EVNK4AA00B23
C229
ECEAICS471
$1,2,3
QSwY304
Push
Switch
3
3.64V
|
:
28
Q6
5
R207,
208,
209
'
CAPACITORS
C230
ECEA1HS100
$4
Qsr44o4
Rotary
Switch
41
15.80V
i
i
a
ERD25TJ224°.
F.
C231
ECKDIH1O3ZF
|
Iss
aq
|gsw2214
Push
Switch
(Power
ON/OFF)
sf
—
eo)
2
‘
:
R210
erp2sti333~
fO2
—‘[ecco1wigivo
|c232
__a|eceaiHs470
S6
A
|
QSR1407H
Rotary
Switch
(Voltage
Selector)
6{
8.64V
:
ie
\
R211
ERD251J473
[ECEA2SM4R7R
C233
ECEAIVS102
$301
0851302
Slide
Switch
(Timer
Switch)
es
i/
ue
,
:
ECQMIH1O3KZ
C234
ECFDDIO4KXY
|
|
5302
QSS1401
Slide
Switch
(Memory
Switch)
;
i
¢
f
an
y
:
;
R214
feRD257223.
CEAIASION
|
935
ecroparaxxy
|
|$303.304,
305,
306,
307,
308,
309,
310
:
if
e347
*)
§
R215
ERD25TJ153
ts
C236
pair
EVQPARIIK
_|Key
Board
Switch
:
7
/
TRCKDIH1S2MD
$311
SB0260
Leaf
Switch
(Erase
Safety
Switch)
i
‘
-
’
R216 ERD25FJ472.- q soneanitesd 237 ECEA1ES101 $312 QSB0261 Leaf Switch (Stop Switch) ’, ‘ai
R218 ERD25FJ103. , C238 ECEA1VS330 $313,314 |QSB0260 Leaf Switch (Playback Switch) :
C239 ECSF16E10 $315 QSB0261 Leaf Switch :
: C240 = A/ ECKD1H103ZF (Cassette Half Detector) i VR2
2
Ecrop1eakxy
|C301,
302,
303,
304,
305,
306
Pa
ERD25FJ332
ECEALJS4R7
ECKD1H103ZF
ae
/
oy
R230 ERQU4AJI51P retell (CT ECEAOJS221 F1,2 A/XBAQI25028 {Fuse (T 1.25) i P|
R231
ERD25FJ103
ECEAIHS100
C308
ECEA16N10
F3
A
|
XBAQO013
Fuse
(T
200mA)
Sn
fennmennniininn
Svmamstninnnsiig
innominate
Nao
Miscenetnt
Re
eet
at
Oe
a
cea
ian
ces
Hee
4
pai
aa
ECEA2ASOR2
—_|€309
ECEALHSR1
JACKS
i
om pcre ECEASOMRI3R {C310 erciiionip J1,2,3,4 | QEJ5002S Jack Board Assembly BI O.71V tT —
ECQM1H273JZ
45,6
QJA0257H
Microphone
Jack
Q5
2SD965
B}
18.
3V
QJA0249H Headphones Jack E[17.9V
QJS1960S
8
Pin
Socket
Q201
2SA921
(S,R)
(2SA921)