Technics RS-M226 - Schematic Diagram; Schematic - Main Section; Schematic - Power Supply Section

RS-M226 R B
NOTES: RESISTORS CAPACITORS 1 2 3 4 5 6
ERD ECBA .Ceramic ECED ......Electrolytic
ERG ie EcGOo .Ceramic ECEON ...Non polar electrolytic SC H EMATIC DIAG RAM
ERS ..Metal-oxide ECKO .Ceramic ECQS ...... Polystyrene Bes
r ; 1, Q3,4 1C1, 2 = — Ic. fe
ERO .-Metal-film Ecco .Ceramic ECSD...... Tantalum 2SD636(R,S) 2SD636(Q,R,S) [M5219L] ovbisza73 avr 2473 INESS4N] INESS2N) INESsaN) fieeeanl faszienl 2spesein,S) 2spes6G,F.S) poncaid
ERX Metal-film ECFO...... Ceramic OCS. sss: Tantalum Main sectio OF ZSC202 (SEM, ar 262021GBSEM IMA161] {MA161] or 2SC2021SEM or 2SC20210RSEM or 2SA937PM
;
;
N
[2sD636]
[280636]
[280636]
[280636]
[286641]
ERQ ne Fuse type metallic ECQM...... Polyester film [ _ ‘tnt : —- RCT 1a 5 . 7 — ee
ERC
......
Solid
ECQE
......Polyester
film
LINE
IN
(Ly
:
:
:
=
(OLBY
WR
(METER
&
HEADPHONE
AMP.)
ERF ...... Cement ECOF ...... Polypropylene A t ee s2-t 52-2 B+ (bias) 7V
Ja DOE csl ay
692¥ sot ov lV
REPLACEMENT PARTS LIST MIC (L) I Ber | 1000 ; rVy — = = — @ =
Important safety notice a an tae 8 Serpe 01 , va re: i 4m bi 9s ; J LINE ov:
Components
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A
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R 17,18 ERD25FJ680 R 142,143 ERD25TJ473 C 103 ECEA1HS100 ag 2SD636 ot | dey AY [Css ov] te 0% cgay a Laing] “7 7--=4 7 we opr | ;
R19,20 ERD25Fy392 R144 ERD25FJ222 C 104 ECFDD473MXY | Q 10 2SD592 as us zoe ae tL tet FOOD | | #68, ie oF B- (bias) -7V | f voy] L088 BP aaa
R 145 ERD25FJ103 C 105, 106 ECCD1H101K aii 2SB641 oy OFE 4 aus | es es Foiee yrles 23 10
R 21, 22 ERD25FJ182 R 146 ERD25TJ333 Cc 107 ECQP1183JZ Q 12 2SD636 : ar AG Ov] Qt | 2OKF Joy | 3 . A
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R 25,26 ERD25FJ102 R 148 ERD25TJ153 C 109 ECQM1H822JZ | Q 14 2SC1846R : sn Seay
R 27, 28, 29, 30 R 149 ERD25TJ473 C 110 ECEA50Z2R2 Q15 2SA885Q LINE IN | Y Tom —
ERD25TJ273 R150, 151 ERD25FJ681 C111 ECEA25Z4R7 J ag 2K s2c3 $21 bbb % a 14 ih a :
R31,32 ERD25FJ102 R 152 ERD25FJ103 C112 ECEA1CS221 DIODES & RECTIFIERS Js qi <i ee ia = i i
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R 47,48 ERD25TJ224 C200 A ECQU2A103MF }D 17,18 MA161 A 900 $+ Fay a } sg | ~~~. ; ee my a Wee) 68" Lawl fetiay
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Ref
No.
|
Part
No.
[
Part
Name
&
Description
x
rg
O
vat
lof
as
_lfdoe
[ax
waar]
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bee
R71,72
ERD25TI123
C9,
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ECEA25Z4R7
ERASE
HEAD
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ps
=
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sbi
Cl
OS
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Sid
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R
73,74
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=
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COILS
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C
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(bias)
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|
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R75,76
ERD25TJ753
—«|
C
13
(22PF)
refer
to
Z
1
So
D
:
a
a
i
R 77, 78, 79, 80 C 14 (22PF) refer to Z 2 QLQX2721D _—_— Peaking Coil ving Jv t 4 EA !
ERD25TJ394 C 15,16 ECKD1H681KB QLM9Z9K MPX Coil es Ma ac Connection point (a Sa? Salt
R 81, 82 ERD25TJ334 C 17,18 ECQM1H183JZ ELM7Q306A = Combination Coil 7 ~ radd 4 (REGULATED
R 83,84 ERD25FU821 C 19,20 ECEA1AS101 QLOQX0343KWA Bias Trap Coil POWER SUPPLY ee,
Cc
22
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BIAS
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8+
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|
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R 85,86 ERG1ANJ470 21, TRANSFORMERS cos C06 ane | Ai via | amuTING CONTROD
R87,88 ERD25TJ333 C 23,24 = ECQM1H273UZ o— eyinn : eee swt 8D a ee = .
R
89,90
ERD25TJ273
ees
SA
QLB0198
Bias
Oscillation
Coil
Pee
Malic
=
:
i
eran
|
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Beer
Sana
BG
Pee
vers
AC
IN
R91,92 ERD25FJ332 27,2 | -sa3tte | Re i Bey i250 ye +4 “ets A “CE
R93 (120KQ) refertoz3 | C 29,30 ECFDD223KXxY [DJA QLPD68EKC AC Power Transformer —@ g/B 94 REPS PTY BR ,, Comection ont enti AR) Inge aay wus FMB sheus | |]! deus bea | | rn
R94 (120KQ) refer to Z 4 C 31,32 ECEA50ZR47 [For all European areas except United Kingdom.] Ror 238V ‘ MURS 020" STOP ow ~Yreve20 a ou A
R95,96 ERD25FJ152 C 33,34 ECEASOZ1 [B] A QLPA65EKC AC Power Transformer ee | gnu a [ons typ rh) AS age > av ‘bona Act
R97,98
ERD25TJ224
C
35,36
ECEA25Z4R7
(For
United
Kingdom]
pt
Lio
tT
ted
$52"
$au0
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i
asus
|
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R99,100 ERD25FU151 C 37,38 ECKD1H103ZF ‘ he Ae el << nS Lenn ay ‘beni mat “uae nisi) Sh [POWER SUPPLY SECTION
R101 ERD25Fu332 C 39, 40 ECQM1H123JZ FUSES ie vio} BELED|SECTION °° § Fs0vz2 STOP OGM | Na? 680 !
-1031V MD:
R 102 ERD25TJ104 C 41,42 ECEASOZ1 F1,2A XBAQ0007 Fuse (T 400mA) E crea OY |
R 103,104 ERD25TJ683 C 45, 46 ECFDD392KVY : : . . - DE : . : -——_——_600--
j . a = 1
R 105, 106 ERD25TJ473 C 49,50 ECEA25Z4R7 SWITCHES 2SDS02ANC [LNZIGRP] 2SB641IO.R.S) 2SDEI6I0,R,S) 2SB64110,R,S) tescreser) izsageso) MatDoMTA SMIAGeT QVDIS2479. MAIOA7TA QVD1S2479 anicarom)
R 107, 108 ERD25TJ105 C $1, 52 ECEA5S0Z1 aes a , [280592] or 2SA937RM or 28c20z1GRSEM or 2SA937RM pew 5-8 [MA1220] [SM1A02] [MA161]___ [MA1047}_— [MA161]
R109, 110 ERD25FJI02 | 653,54 ECAMTHT03Nz $1 QSSE203 Record/Playback Select renee oe eoeeell wept = aon auied fucka tenes
Ri ERD25TJ153 C 55,56 ECQM1H822JZ Switch . MUTING SWITCH
R112 ERD25F.J103 C 57,58 ECEA25Z4R7 S$ 2,3and4 NOTES: ;
R113 ERD25TJ683 Cc 59, 60 ECKD1H102KB QSWX312 Combination Switch e¢ $1-1—S$1-14...... Record/playback select switch (shown in playback @ VR7 oo. FL meter adjustment VR (for —-20dB indication). ¢ All voltage values shown in circuitry are under
R114 ERD25FU222 C61 ECEA502Z1 (Input Select/Dolby position). ° FL meter adjustment VR (for 0dB indication). Unless otherwise specified, voltage measurem
R115 ERD25TJ684 C 62 ECEA1HS100 SWiDolby B-C Selector) ¢ $2-1—S2-4 ......Input select switch (shown in LINE IN position). © VRQ, 10........... Bias current adjustment VR. travels is at STOP, tape mode at NORMAL, an
S5 A ESB822S Push Switch ¢ $3-1—S3-3 ...... Dolby NR/MPX filter IN/OUT select switch (shown in NR IN: ¢ Connection points (A) and (B)...For erase current adjustment. REC ...Voltage at record mode.
R 116 ERD25FJ471 C 63,64 ECQMIH333N2 (Power ON/OFF) MPX IN position) * Resistance are in ohms (@), 1/4 watt unl ified otherwi PLAY Vol
Aetaz ERDOSFJ472 C 65, 66, 67, 68 $6 QSR4306 Rotary Switch p . ; : 7 in ohms (8), watt unless specified otherwise. ... Voltage at playback mode.
R119
ERD25FJ182
ECQM1H472JZ
(Tape
Select
Switch)
°S4
Dolby
NR
(B/C)
select
switch
(shown
in
Dolby
B
position).
K
=
1,000,
M
=
1,000KQ.
RECIPLAY
......Voltage
at
record/playback
mo
R121
ERD25Fu103
C69,
70,
71,
72
QSB0251
FF/Rewind
Muting
Switch
°
SS...
--.-Power
ON/OFF
switch.
;
m
°
Capacity
are
in
microfarads
(uF)
unless
specified
otherwise.
Normal
.........
Voltage
at
Normal
tape
mode.
R 122, 123 ERD25FJ181 ECEA1HS100 QSB0251 Playback Switch ° S6-1—S6-4 ...... Tape select switch (shown in CrO, position). P = Pico-farads. ...Voltage at CrO, tape mode.
R 124 ERD25FJ1RO C73 ECQM1H104JZ (®...Normal, @...CrO,, @)...Metal). ¢ The mark (¥) shows test point. e.g. W= Test point 1. ...Voltage at Metal tape mode.
R125,
126
ERD25FJ392
C74
ECEA1AS221
JACKS
e
S7....
...FF/Rewind
muting
switch
(shown
in
OFF
position).
¢
(
SMB
)
this
arrow
indicates
the
flow
of
the
playback
signal.
...
Voltage
at
STOP
mode.
R 127 ERD25FJ100 é i) is Sees ; ° $8... ..Playback switch (shown in OFF position). ° ( ) this arrow indicates the flow of the recording signal. ...Voltage at Cue/Review mode.
R 128, 129 ene eee Ee as. SECOMI ESE OiAee Nerina a F * VR1,2 ..Input level controls. ¢ Important safety notice ...Voltage at Dolby-B mode.
R
130
ERD25FJ100
=
at,
ms
FCOMIF
Taiz
Pp
ac
©
VR3,4
..Playback
gain
adjustment
VR.
Components
identified
by
A
mark
have
special
characteristics
important
..Voltage
at
Dolby-C
mode.
° VR5,6 . ..Recording gain adjustment VR. for safety. When replacing any of these components, use only
C 83, 84 ECQM1H683JZ
QEJ5028S Jack Board (Line IN/OUT)
R 131 ERDS0OFJ121
manufacturer’s specified parts.