Sherwood TD140 User manual

eae
TD140/TD140R
Digital Tuner
Optimu
iS
eee
G
Sherwood

Contents
SPECITICAONG taste dineains ethno daraesea outa eased en seee eines eee iatase a-ceaeen ebeeceteutatesox nie
COTE States chpencsnariang te iaea en eaceaaneans Se A hds cae oh heen oe cide eneatiy ane eu aconhagreeanesasse cae)
Electrical Adjustment Procedure. oo... oo cc cece ccc beeen brea, 34
PS Goll Os tia erriyser ses taembathenien aera rand ah cen erienuese aie cumetoonuia acener saa ineseeaateteulmeee heen ee
Parts List & Top View of P.C Boards... cccccccccccc cc ccc ce cceceeneee. ore 5678
Block Diagram....... Pe Beste leg cp eet ot ng dala entrain Sigh eat bi atu Cheeta cee g
Parts List & Exploded View of Cabinet & Chassis.....000.0.00 00 ccc ccc ccc cc ec ccccc cc cccccecenens 910
POE 10°F OINE VV ING) DIAG a ess cies sate ihc hotde denna iewisndeieetidlalt asencituseteasein dt ksh vi ikioean 1445.

Electrical
Adjustment
Procedure
I TUNER SECTION
To
make
the
adjustments
the
following
instruments
are
necessary.
@
AM/FM
iF
Genescope
@ Digital Voltmeter
@
High
Sensivity
AC
Voltmeter.
@ Oscilloscope.
@
Test
Loop
Antenna
(AM)
® Dummy Antenna(FM)
@
AM
SG(AM
Signal
Generator)
@FM
SG(FM
Signal
Generator)
@FM
SSG(FM
Stereo
Signal
Generator)
@
Distortion
Analyzer.
@ Frequency Counter.
1. AM SECTION
A.
\F
AM
ALIGNMENT
(Fig.
1—1)
a.
Set
the
Function
switch
to
AM.
b.
Adjust
1104
so
that
figure
developed
on
the
Genescope
becomes
laterally
symmetrical
with
the
axis
of
symmetry
at
450KHz
and
has
a
maximum
amplitude
as
well.
TPS
AM EXT ANT
SET
UNDER
ALIGNMENT
Fig.1-1
AM
IF
GENESCOPE
B.
AM
TUNING
VOLTAGE
ALIGNMENT
(Fig1—
2)
Set
the
Function
switch
to
AM.
Set
the
frequency
of
the
tuner
to
1710KHz.
Set
the
frequency
of
the
tuner
to
520KHz.
Adjust
T106
so
that
DVM
reads
DC
0.6V+0.1V
Repeat
steps
b
to
e
until
DVM
reads
given
voltage
at
given
frequenies.
DBO
T.P4
SET
UNDER
ALIGNMNMENT
Fig.1-2
DVM(DIGITAL
VOLT
METER)
C. RF TUNING ALIGNMENT (Fig. 1—3)
qa. Set the Funciton switch to AM.
b.
Set
the
AM
SG
to
30%
Modulation
at
400Hz
and
70~80dB
output(3—10mV.
which
gives
field
intensity
150~500uV/m
to
the
bar
antenna).
c.
Set
AM
SG
to
600KHz
and
set
the
frequency
of
the
tuner
to
6OOKHz.
and
then
adjust
ferrite
bar
antenna
to
maximize
audio
output
level.
Adjust
TC
103
so
that
DVM
reads
DC
8.5V2=0.1V
d. Set AM.SG to 1400KHz. and set the frequency
of the tuner to 1400KHz, and then adjust 1C101
to maximize audio output level.
e. Repeat steps d and e so output is maximized that
at the given frequencies.
AM SIGNAL
GENERATOR
FERRITE
BAR ANTENNA
AC VOLTMETER
TEST LOOP
ANTENNA
SET UNDER
ALIGNMENT
OSCILLOSCOPE
Fig.1-3
D. FINE TUNE INDICATOR
a. Set the AM SG to 1000KHz and abjust the out,
put level control so that AM SG output level
is 80dB(10mV).
b. Adjust R116 so that TUNE indicator lights up.
2. FM SECTION
A.FM TUINING VOLTAGE ALGNMENT (Fig. 2—1)
a. Set the Function switch to FM.
b. Set the frequency of the tuner to 87.5MHz.
c. Adjust L7 so that DVM reads DC 2V —0.2V
DVM
SET UNDER ALIGNMENT Fig.2-1
B. 1F ALIGNMENT (Fig. 2—2)
a. Set the Function switch to FM.
b. Adjust the cores of T102 and T1083 so that the
S curve developed on the IF Genescope becomes
point symmetrical to the center frequency point
of 10.7MHz with a maximum amplitude and the
voltage betweer.T.P2 and T.P3 is OV+50mvV.
c. If the IF genescope is not available, set tuner
detuned and abjust the core of T102 so that
noise output is maximized and the voltage between
T.P2 and T.P3 is OVt50mV.

OSCILLOSCOPE
FM SIGNAL
GENERATOR
75o0hm
SET UNDER ALIGNMENT DISTORTIONIANALY ZER
wy
Agere
Fig.2-4
C.
RF
TUNING
ALIGNMENT
(Fig.
2—3)
|
a.
Set
FM
SG
to
75KHz
deviation
at
1KHz
and
1-2uV
output.
b.
Set
the
frequency
of
the
tuner
to
98MHz
and
then
adiust
L1.L2,L3
and
L4
so
that
audio
output
is
maximized.
adjust
c.
Set
the
frequency
of
the
tuner
to
98MHz
and
P
Id]
,
then
adjust
core
of
T103
so
that
distortion
is
ac
ING
}
NO.
PARTS
NO.
DESCRIPTION
BOX CARTON
9722008210 CUSHION POLY
9715000110 FILM SOFT PE
OPERATING INSTRUCTIONS
4348000310 DIPOLE ANT
4328200510 CORD RCA
minimized.
FM SIGNAL
GENERATOR
750hm
OSCILLOSCOPE
Ooh Wh
4-3) 4 2 Ay
SET UNDER ALIGNMENT
AC VOLT
METER/
DISTORTION
Fig.2-3 ANALYZER
D.
MUTE
LEVEL
AND
FINE
TUNE
INDICATOR
ALIGNMENT
a.
Set
the
MONO/MUTE
OFF
switch
to
ON
position.
b.
Set
the
FM
SG
to
7~10uV
output.
c.
Tune
FM
SG
and
the
tuner
to
98.0MHz
and
stop
adjusting
R117
at
the
position
where
muting
muting
marginally
occurs.
E. MPX ALIGNENT (Fig. 2— 4)
a.
Set
the
MONO/MUTE
OFF
switch
to
STEREO
position.
b.
Set
FM
SG
to
60dB(1mV)
and
MPX
SG
to
67.5KHz
deviation
at
1KHz
for
left(right)channel
and
7.5KHz
deviation
for
19KHz
poilot
Signal.
c.
Set
the
frequency
98.0MHz.
:
d.
Set
FM
SG
to
modulation
OFF
position
and
|
“ee
adjust
VR1
so
that
frequency
counter
read
76KHz.
|
e.
Set
FM
SG
to
modulation
ON
position
and
adjust
VR2
to
minimize
output
of
right
(left
)channel.
f.
Adjust
T101
to
minimize
distortion.

Parts
List
&
Top
View
of
P.C
Boards
@IC
R333
3069470270
C.F
47
ohm
%W
C114,
115
3479233971
Elect
3.
3uF/50V
IC101
2168017119
IC
LA
1265
BC
R114,
208
3069820970
C.F
82
ohm
4W
C127,
129
IC102
2168411105
IC
HA
12016
67BC
R228
3069101970
C.F
100
ohm
KW
C105,
117
3479247971
Elect
4.
74“F/50V
|
C201
2138007108
IC
TD
9147AP
56D
R102
3069181970
C.F
180
ohm
KW
C111,
151
3479210061
Elect
10“F/35V
~
1C202
2108007102
IC
TD
6104P
56D
R109,
110
3069331970
C.F
330
ohm
KW
C154
IC203
2138011110
IC
MC
14093
7D
R218,
219
C118,
119
3479222031
Elect
22uF/16V
IC502
2138013115
IC
MC
14028
23D
R108
3069471970
C.F
470
ohm
%W
C201,
222
3479247021
Elect
47“F/10V
iC501
2138009114
IC
MC
14011
23D
R101
3069561970
C.F
560
ohm
%W
C156
(C301
2108007101
IC
TD
6301AP
12B
R162,
165
3069821970
C.F
820
ohm
%W
C151
3479247041
Elect
47“F/25V
R161,
164
3069102970
C.F
1K
ohm
'eéW
C120
3479222131
Elect
220uF/16V
'
@
TRANSISTOR
R153,
207
C155
|
3409247141
Elect
470”F/25V
*
Q101,
102
2208606104
KTC
1815Y
AC,
6C,
R139,
142
3069122970
C.F
1.2K
ohm
6W
C207
3409222211
Elect
2200uF/6.3
/
4104,
106
7C
7B
R122
3069222970
C.F
2.2K
ohm
%W
C108,210
3479247031
Elect
47“F/16
Q107.
205
7D.
6D
R113,
131
3069332970
C.F
3.3K
ohm
%W
C150
Q206,
117
5D
R135,
137,
C101
3479210131
Elect
100“F/16V
/Q119
R138,
140
C19
3529109210
Ceramic
1pF/50UCH)
/Q105
2208206105
KTA
1015Y
7C
R141,
209
C13,16.17
3529209210
Ceramic
2pF/50V(CH)
'
Q202
2208606108
KTC
2240BL
6C
R106
C20
3529809110
Ceramic
8pF/50V(RH)
Q2,4,5
2008406103
KTC
1923Y
4B,
4C
R136
3069392970
C.F
3.
9K
ohm
)4W
C17
3529120110
Ceramic
12pF/50V(RH)
Q116.118
2008209191
MPS
A55
5C.5D
R123,
147
3069472970
C.F
4.7K
ohm
6
W
C23
3529150110
Ceramic
15pF/50V(RH)
Q101
2008409101
LM
9018F
AC
R182
C219,
220
3529270210
Ceramic
27pF/50V(CH)
Q108
2028406113
KTD
880
4D
R144,
152
3069562970
C.F
5.6K
ohm
'eW
C22
3529330210
Ceramic
33pF/50V(CH)
R183 3069822970 C.F 8.2K ohm gw €1,3, 10 3529809210 Ceramic 8p/50V(CH) a
©
FILTER
R112,
120
3069103970
C.F
10K
ohm
}gW
C6
3529100110
Ceramic
10P/50V(CH)
eS
BEES
:
Be
CF1.CF2.
390811001‘
Ceranse
10.
7MA8
4C,
5C
R121,
145
C110
3579470130
Ceramic
47pF/50V
TEL
Lalo
fe
|}
acs
CF104
3908001150
Ceranse
SFZ
450B
5B
R149,
332
C123
3579560130
Ceramic
56pF/50V
ro
a
MINIM
One:
I
R72
CF106
3908001020
Ceranse
BFU
450C
4N
5C
R150,
160
C203
3579101130
Ceramic
560pF/50V
ao
[ala
|e
i
OY
aes
Es
=
ss
:
lies
ze
eh
:
(C7
pee
.X-TAL
3908101030
X-TAL
7.2MHZ
5D
R163,
204
C159
3579331130
Ceramic
330pF/50V
:
SSS
Pee
i
—_
=
fyorths
=
mt
biol:
[eshte
aE
ES
e+e
)
R210
C162,
163
3579103530
Ceramic0.
01“F/50V
o>
UN
PEA
es
8
eae
ae
OnE
By
Pe
rememcoctooistine
@
DIODE
R180
3069123970
C.F 12K
ohm
'4W
C152,
158
ie
life
ea
rh
ee
Pe
ee
er
Oe
ae
he
y
D106-113
2058306101
1IN4148
3D,
7B
R220,
221
3069221970
C.F
220
ohm
%W
C159,
202
=e:
9501-511
5D.1A
R114
3069183970
C.F
18K
ohm
!«W
C204,
206
D201,
202
6B.
6C
R125,
130
3069223970
C.F 22K
ohm
KW
C208,
209
D203,
301
1c
R132,
148
|
e213
D114,115
2058106100
IN4002
34D
R156,
227
C205
3579102530
Ceramic
0.01“F/50V
D116,
117
R330
C5,9,15,25
3579223530
Ceramic
0.02uF/50V
p18
2058513104
Zener
RD
5.6
EB2
4CD
R216
3069333970
C.F
33K
ohm
'W
C136,
102
D119
2058513120
Zener
RD18
EB2
4D
R231
3069393970
C.F
39K
ohm
'6W
C106,
107
|
D101,
102
2058819106
Varactor
KV
1235Z
5B.
6B
R3,
148
3069473970
C.F
47K
ohm
'6W
C226,
104
|
D1,2,3
2058819107
Varactor
KV1310A-
3
4B,
3C
R151,
502
C103,
109
3509473530
Ceramic
0.047“F/50V
-7TC101,.103
3838001010
Cap
Trimmer
TZ103R200F
5B.
6B
R502~
505
C144
R301~
322
C11
3509101130
Ceramic
100pF/50V
©
FET
R118,
217
3069683970
C.F
68K
ohm
«W
C4
3509102130
Ceramic
0.
001“F/50V
Q1
2018213100
3SK
T4L
34B
R183,
128
3069104970
C.F
100K
ohm
!<W
C146
3579471130
Ceramic
470pF/50V
~~
—
|
| |
REE
49
80
one,
2
2018206110
KTK
161YR
AC
R129,
143
C121:122
3679152120
Mylar
0.0015“F/100V
|
Q201
2018211100
2SK
168D
6C
R154,
262
C131,
133
3679392120
Mylar
0.00394F/100V
|
R203, 205
C134,
160
3679153120
Mylar
0.015#F/100V
|
@
COIL
R206,
230
C112,
223
3679223120
Mylar
0.022«F/100V
|
T7102
2838501110
Quad
DET(A)F
5C
R232
C224
225
'
7103
2838501210
Quad
DET(B)F
5C
R171,
178
3069224970
C.F
220K
ohm
le
W
C401
7101
2838001930
ITF
4C
R223,
224
3069105970
C.F
1M
ohm
%W
C116
3679333120
Ceramic
0.
033#F/100V
'
7104
2848001250
IFT
AM
5B
R225,
226
C124
3609473120
Mylar
0.047“F/100V
/
7105
2638201150
OSC
AM
5B
R134,
135
3069513970
C.F
51K
ohm
!é\W
C21,
24
3509103130
Mylar
0.014F/100V
/7107,108
2658301100
Filter
MPX
19KHz
7B
R229
3069564970
C.F
560K
ohm
4
W
hu
7648001260
FM
ANT(A)
AB
R124
3069563970
C.F
56K
ohm
4W
=
L2
2648001270
FM
RF1(A)
4B
R107,
3069561972
C.F
56K
ohm
%W
3S
|
13
2648001280
FM
RF1(B)
4B
~R6,14,16
3069561972
C.F
100
ohm
46W
oO.
14
2648001290
FM
RF2(A)
4B
R6
3009121972
C.F
120
ohm
%
we
i
2638001060
FM
OSC
34C
R10
3009561972
C.F
560
ohm
4W
m2
|
L6
2648601270
Inductor
2.
2/H
4B
R17
3009332972
C.F
3.3K
ohm
'4W
te
1
L103
264801400
Inductor
22H
5B
R18
3009822972
C.F
8.2K
ohm},
W
Fa,
|
L104
2648601260
Inductor47/4H
5B
R1,7.12
3009333972
C.F
33K
ohm
1¢W
Ow
Rit
3009473972
C.F
47K
ohm
%W
o-7
@ LED R2 30091049112 C.F 100K ohm %W
_ D413 2308220306 SLR 54GC3-GN ic R15 3009474972 C.F 470K ohm 4W
'
D414
2308220507
SLV
56DC
IC
R9
3009105972
C.F
1M
ohm
4,
W
~ D401, 412 2308220127 SLR 34URC-3 3A, 4A VR1 3248333220 Semi 3.3K ohm 446W
5A. 6A VR2 3248322420 Semi 22K ohm }4W
"FIP 2328130901 FIP 7B8S 12B . R116,117 3248320325 Semi 22K ohm '4W
@ RESISUOR T @ CAPAC TOR
R185A 3039339472 M.O 33 ohm 1W AD C138 3619471110 Poly 470pF
R155, 185 3039151472 M.O 150 ohm 1W 4C, 4D C125 3616981110 Poly 680pF
_ R192 3039181472 M.O 180 ohm 1W 4D C135 3619102110 Poly 1000pF
R186 3069681270 C.F 680 ohm '4W. C147 3619332110 Poly 3300pF
R187
3069102270
C.F
1K
ohm
'4W
C212
3479222871
Elect
0.224F/50V
a.
3A
2
25
0V
- R104. 105
3069101270
C.F
100
ohm
'4W
C119,C126
3479210971
Elect 14F/50V
R111.
119
C130,
132
_
R201.
015
C218,
148
|
R222
C161
|
R197
3069220270
CF
22
ohm
'4W
C217
3479222971
Elect
2.2uF/50V
|
5
|
6

ere ee ee
:400 221341
.
OOO ata ee eT
5
ee Go ere’
5 5
oe ER 8. ew ee
araretetereretatetatets fe ote “sgt, tsteteocece,
RE Oe Oe he he
eeeeue
ee ce oo. 20) eo mas
see ecw eran
Cry
. .
R 135 «-., ffi :
eee
are od Fris3®
a a as a
mba le ee
! ae: Seas © :
Q70
wee eee
.
O14L- AZOI S
See Que A D202 A —
Bend eee Ls) ane :
oer, ieee SOs
22 3440388:
BD
LE
RS Sa BSD
se site!
wee sbeiciales
dpicieties Veins Guidi e6 8a Siw eke a
Senn Ree een nnn
esieewertees
Ee. Senco ooo eee terns
Ap eee eres
ey
rete o*e ee’
nO
! oS
Sete? Tete’
8. oe
atete begets
one ote!
srates cfete otete’ Ee
enece fetane cove” Be
ct hs iD
Bore ah Oe Meo
© Bee gketet feet ot
Seca meseses
Sa a a nh TU Ci ec ey ga RLag Os Ss Rs Gee
Bike
GSI
Ane
ISPD
Sal
yA
ERK
ERISA!
(UMN
eSnue
CA
et
ee
BOE
Samir
PR
ne
cI
nce
nD
Jorelere"e"eeTererecec eel e ey ele eer eret ate:
SR NSIT RC NN ae he Se he te hee te te aN OD NCR a Se Wheat er he ee ee he
a Oe SO NR ae he he ee
Se a he PM BS td hc a a a Be A ae et
See a Be eh ae he aa eA A BR
a OR RO BO eR

_ Block Diagram Parts List & Exploded View of Cabinet & Chassi
viva Avy idsid
aSVHd
¥3TV9OS
3ud
H3i71!14 4!
OOn onh Wh
04854502661 1
6555601 020
04853500971 1
8545030910
655500361 0
4628005610
04857300541 1
04853500981 1
8535009910
6512000310
8535010410
4658001 120
8523008010
4628042110
23281 30901
855501 2510
BUTTON PUSH( POWER)
SPRING COIL .
INLAY
apEe 048635006216 PLATE KNOB(FM)
g oF 048635006211 PLATE KNOB(AM)
+ n@ 048625001111 DECOR PLATE(B)
2 08 8545031310 BUTTON TACT
KNOB TACT
SPRING KNOB
SW PUSH(1KEY)
PLATE 117UMINATON
DISPLAY PLATE
DISPLAY FILTER
HOLDER DISPLAY
DIFFUSER
SW TACT
HOUSE LED
SW PUSH(4KEY)
FIP 7B8S
GUIDE LED(A)
|
S24t)o tp | 046122011611 COVER TOP
avai]; | 6705004220 SPACER
at eae 2 3 | 2828041805 TRANSFORMER
: or | 6165120610 SHIELD FENCE(A)
2 ¢§ ! 6165120710 SHIE D FENCE(B) LD
m ™ 6335000410 RUBBER FOOT
> | 6122612310 CHASSIS MAIN
o | 7505200730 H/SINK REG TR
= 4408102610 PUSH TER’BOARD(4P)
zo | 4438101510 JACK RCA(2P)
& 046102018011 CHASSIS BACK
4a 3 ee ee ore ee 4308001410 CORD AC POWER
22 6518000710 STOPPER CORD
4448100810 AC OUT LET(3KEY)
2608207270 BAR ANT AM
2 sha 6515000210 HOLDER ANT(MW)
: 6513000110 STOPPER CORD
5, oom|! > 8535010510 DIFFUSER(ME)
2 =| = 6715010410 LAMP HOLDER
zy oom |! z zon 8119226081 SCREW #2 PT2.6x8Y
x ron % 7g 8119230061 SCREW #2PTC 3x6Y
= { 6 7 8119230063 SCREW #2PTC 3x6B
- mn 8119230081 SCREW #2PTC 3x8Y
Ree A 8159230061 SCREW #2WPTC3x6Y
8159230081 SCREW #2WPTC3% 8Y
8159230141 SCREW #2WPTC 3x 14Y
8119440083 SCREW WSAM 4x8B
Loar 8159440081 SCREW WSAM 4x8Y
2S
a
=
; cal;
31m
m it
a =
™m
S
eo: = 0
Oo Oo x
. 5
=z z
Ag?
5
| NO. | PARTS N . DESCRIPTION POSITION
A2
048623002412 DECOR PLATE(A) 1
So x 3 = 048501005611 PANEL FRONT
a @ 7 8545027110 CAP BUTTON
. = 6053001510 BASE BUTN TACT(8KEY)
rN 2B oO B = 8545030810 KNOB PUSH 4
aoa eh a 6055002810 INSERT BUTTON ,
= so 8545026710 BUTTON PUSH(BLACK)
B < 8545026720 BUTTON PUSH(RED)
o 5 8555012410 DISPLAY WINDOW
x

List
&
Exploded
View
of
Cabinet
&
Chassis
POSTION
2412 DECOR PLATE(A) A2
1
3611 BUTTON PUSH(POWER)1 = C1
20 SPRING COIL 1 C1
9711 INLAY fi G2
3216 PLATE KNOB(FM) 1 62
3211 PLATE KNOB(AM) 1 B2
1111. DECOR PLATE(B) 1 B2
10. BUTTON TACT 1 A8
10 KNOB TACT 2 B2
10 SPRING KNOB 2 B2
3611 PANEL FRONT 1 B3
10 CAP BUTTON 8 B83
10 BASE BUTNTACT(BKEY) 1. B38
“10 KNOB PUSH 1 -€2
10 INSERT BUTTON { -€2
10 BUTTON PUSH(BLACK) 3. B3
10 BUTTON PUSH(RED) 1 C3
10 DISPLAY WINDOW 1 D1
(0 SW PUSH(1KEY) 1 O01
5411. PLATE 111UMINATON 1. D2
9811 DISPLAY PLATE tf °p2
10 DISPLAY FILTER 1 D2
10 HOLDER DISPLAY 1 D2
10 DIFFUSER 1 C3
10 SW TACT 13. C3
'O HOUSE LED 1 C3
(0 SW PUSH(4KEY) 1 C8
yi FIP 7B8S 1 D8
‘0 GUIDE LED(A) 1 D3
‘611 COVER TOP 1 D1
10 SPACER 2 C4
5 TRANSFORMER 1 £4
QO SHIELD FENCE(A) 1 D4
0 SHIE DFENCE(B)LD 1 D4
0 RUBBER FOOT 4 BA
0 CHASSIS MAIN 1 C6
30 H/SINK REG TR 1 D4
O PUSH TER'BOARD(4P) 1 D4
0 JACK RCA(2P) 1 D5
3011. CHASSIS BACK 1 D6
0 CORD AC POWER 1 F3
0 STOPPER CORD 1 E4
‘QO AC OUTLET(3KEY) 1
10 BAR ANT AM 1 FS
Q HOLDER ANT(MW) 1 F5
QO STOPPER CORD 1 D6
0 DIFFUSER(ME) 1. “2
‘Q LAMP HOLDER 1 D3
4 SCREW #2 PT2.6x8Y 8 C3
1 SCREW #2PTC 3x6Y 2. D8
3 SCREW #2PTC 3x6B 9 D5 ;
4 «= SCREW #2PTC 3x8Y 9 B4
1 SCREW #2WPTC3x6Y 2 C5
1 SCREW #2WPTC3x8Y 4. B4
SCREW #2WPTC 3x14Y 2 £3
3 SCREW WSAM4x8B 4. £3
SCREW WSAM 4x8Y 2

Point
to
Point
Wiring
Diagram
AM
BAR
ANTENNA
AC
INPUT
-
us
‘
AC
120V/6OHZ
|
ui}
-
|
|
AC
OUTLETS
o|
5
a
L/
YELLOW
|
YELLOW
“TRANSFORMER
w
|
4002213430
e{
=
POWER
BOARD
JL
~~~
~$F>
==="
WJ
4002213401A
MAIN
BOARD
4002213420
FL BOARD
4002213410
_ FRONT BOARD
4002213450
FUSE BOARD |
12
11

| Ri63
fe
ee
Ig
J(+i7.
8v)
ci38
2482
:
1c
102
RIG!
A.
2.2K
ff
ae
a
5
,
+5v)
had
:
Riéa
merg~
La
3915
iN4148
330
56
=
0102
Ri
60
IN4'148
9
on
EQ 470R
1N
4148
Schematic Diagr
'
(-18v)
Zo308
A236
KTAIOISY
DIOS
IN
4146
O00 Ferra
Cc
126
0.011
mM)
Too
Bas
nes
a
0.34.2
50V
ves
ae
ia
Risla
slerefereterste
ae
=
He
SOOO
RD
OEE
:
os:
ACIZ0V
/6OHZ
riz
eis
os
S818)
8/9
81
5)e
MbCOOoboCrt
WEROOOOOCEL
ose
sieteleisis
s
9
9
OOOO
8
©
Of”
SoC
eee
«
TRANSFORMER
R129
16
20K
CORIM
poe
InN
41486
week
77
CHG
1780
Fol
TI2S5 mA
AC
INPUT
1OOV/220V/E0HTZ
Cl42
0.0082(
mM)
FOR
SAA
VERSION
FOR
GENERAL
EUROPE
VERSION
FOR
KS
VERSION
63HZ
.
:
BANDPASS
77
ch2
FILTER
1780
y
cul
0.33/80
H:
+18V
OC
(REGULATEO
1:
—16¥
OC
(REGULATED)
PINNING
J.
t17.8V
DC
(REGULATED)
Ye
Te
Yi6
INDEPENDENT
INPUTS
/OUTPUTS
K:+8V
OC
(REOULATED)
Ae
Te
AS
ADORESS
INPUTS
Li
+1OV
DC
(UN
REGULATED)
E
ENABLE
INPUT
(ACTIVE
LOW)
(2)
34
3K
6X7 Kg)
z
COMM
ON
\MPUT/ OUTPUT
WO
.
e
nie
:
8
Bek
rregtets
P5860
bbe
bs
2§
z
=
5
25
°
IN
ZOUT
OUT/mOUTAN
TM/
CONT
CONTE
VES
mAs
228
“
5b
s2eSw-
ya
J
~o=
w
awa
ew
MC
14067B
m
acs
Stx0
BC"
a
TC
9I3OP
L
C4966
yo
8
w
oO
wes

D
agram
I
D I C
EQ 470R
»
y
hemat
FTZ
|c236L
~ 0 RO se
ox
ll
ere)
ee
ei
OOO
OD
LINE
KTcIaisy KTCSISY
ut:
Lc 4966
ol
O@OOOS)
if
Be
@
abebo5o
oI 9
OCOOO]O®
ort
Ae
ee
50}
R243L
1K
2901302
SERVICE
INFORMATION
|
.
RESISTANCE
VALUES
ARE
INDICATED
(K*!,000
.
M#1,000,000)
2 .CAPACITANCE VALUES ARE SHOWN
OTHERWISE
NOTED.
3
.COMPONENT
VALUES
ARE
SUBJECT
TO
CHANGE
WITHOUT
NOTICES.
4
.
ALL
VOLTAGES
ARE
REFERENCED
TO
GROUND
UNDER
THE
FOLLOWING
CONDITION
AC:RMS
D
C:NO
SIGNAL
EXCEPT
WHERE
5
PRECAUTION
A)YALL
COMPONENTS
MARKED
MUST
BE
REPLACED
ONLY
WITH
ORIGINAL
TYPE
SPECIFIED
BY
THE
MANUFACTURER,
AND
INSTALLED
AS
THE
ORIGINAL
WITH
SPACERS
AND
POSITIONED
AWAY
FROM
ADJACENT
COMPONENTS
WHERE
APPLICABLE.
B)
ALL
SOLDERING
MUST
BE
DOWN
IN
A
PROFESSIONAL
MANNER
USING
SOLDER
WITH
RESIN
CORE
ONLY.
C)
ALL
COVER,
SHIELDS
ANO
INSULATING
SPACERS
MUST
BE
REPLACED
BEFORE
RETURNING
APPLIANCE
TO
CUSTOMER.
O)
A
DAMAGED
POWER
SUPPLY
CORD
MUST
BE
RERLACED
BEFORE
RETURNING
APPLIANCE
TO
CUSTOMER.
E)A
DIELECTRIC
TEST
CONSISTING
OF
(200V
AC
60H2
IS
TO
BE
APPLIED
BETWEEN
BOTH
BLADES
OF
THE
POWER
SUPPLY
CORD
ATTACHMENT
PLUG
AND
THE
EXPOSED
CONDUCTIVE
SURFACE
OF
THE
APPLIANCE
FOR
A
PERIOD
OF
NOT
LESS
THAN
ONE
SECOND
BEFORE
RETURNING
APPLIANCE
TO
CUSTOMER.
F)
THE
2W-
=
MARED
RESISTORS
ARE
MOUNTED
ABOVE
THE
P.C.B
ON
SLEEVES.
IN OHMS OTHERWISE NOTED.
IN
MICROFARADS
UNLESS
INDICATED.
3
R25
GR
pred
aid
—
aor
a
Sa
Tx
aL
a
R257
©)
z
R257R
100
oe
R282L
ae
5
a
a
ae
ee
ee
ae
es
See
Ceara
eae
|
a
|KTgIgISY
&
me
™
2
wx
©
R306
Fe
ee
x
One
heh
Es
&
08
5
&
5624
OL
FOR
REMOTE
TERMINAL
|
100K
Res
0
QS
0208
380206
ae
ny
a8
22/
25
Q30
3°
«
=
0
«-
lr
i
(ry
FRONT
PC
89
CNPHIO
R351
Riclewy
pe
=
3
-
a
ae
=)
Ye
7
wz
x
a
ou
mn
$4
te
©
iy
4
:
we
NS
"4
TAPE
MONITOR
RS
=
og
uw
oo
m
8
Ww
°
°
°
3
O
-
i
~
oh
Mh
u8zF
23s
*
x
>
yy
=|
CNPO4
go
<4
v2
ee
nos
of
nN
2°
ca
in
ge
=
5
gw
Ty
BE
;
:
oe
+
o>
Lo
vo
OS
06
V6
tx
1
-
enn:
SEU)
Eee
Peete
eis
BONA
Acret
Meee:
sian
SUE
A
()
CS
23
a
2
a
ws)
=
rad
g
o
£0
DEFEAT
pes
°
°
Pf
8
S
°
°
g
ites
4
eo
=
:
s
wv
n
ba
ry
g
+
Na
4 & N
2
>
>
>
>
>
>
a
>
.
a
£Q
RECORD
ls
TAPE
MONITOR
LEDION
Go
C7
Eo
DEFER
0.0 O1(M)
Cc 302
1N4148
°
Rete
ee
Ne
ye
See
eo.
em
cist
Gae
oi
100
A\
n
1N4148
=>
«
i
«
i
”
« «
=
ss
é
Ss
8
S
°
©
5
©
2
AZ
yw
o
Ko
N
N
Pal
9
S
°
S
+
as
|
«
vu
Bos
a
5
>
g
>
4
>
N
(2)
-O-
nies
|
SAE
Se
asa
eae
are
ey
RR
OK
acs
oT]
mia
peciaeus
Ho
4
eres
rig2ye
=
B48
1c
102
rier
1o!38
1.
N
i>
2K
£4
e
ay
4
&
a
©
‘7.
Q
:
e
ey
Ries
me7gs
LG
3915
6
Ri
330-86
Gn
=
“
"so
*Aso2
S
SRS03
2
4067
+
+08
{
2
R
‘
3
id
6
222
“12K
1.2K
ries
$7
°
=
%
fee
4)
47K
cise
oes
=
LG
(4)
(5)
33/16
=
we
(3
|
D102
©)
Or
=*
2
Cs
IN4148
a
@)
SN
piace
x
(9)
(3
12
(8)
(1)
ce
(8
('3)
16KHZ
|
(9) (4)
(1)
ie
=
oarreo
1
@
ex
x|
*|
x
xo
any
AT
Cle
-
3
clo2
oc
=
5
o
x
ci3s&
ox
OF
Ba
ae
a
0.0012(M)
<Jealelr
.eO
-—t
|]
=
tK
i
IK
176
173
174
tK
173
72
LK
i7|