Pioneer KE-83ZBM Manual de serviço - Página 21

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Pioneer KE-83ZBM Manual de serviço
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-B3ZBM/US
9.
SCHEMATIC
CIRCUIT
DIAGRAM
FM FRONT
END
(CWB1004)
Q1
:
2SK241
r¥
ico
TUNER
AMP
UNIT (3/6)
L52
tSpH
CWW-173
or
CWW1015
XT
IC2-1
Y
MIXER
ley
Oi
T2
IC51
:
KHA141
FM
IF
mb
1
1
si
4-I-4
1
J>
j2.4_19
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g
i
1
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t
mr
tT*
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fen
®
—
T
—
iJ
X
1
47u
T
°-°22 0.022
1
I
,
-'
v
J
0022
Mkl4.7V
^
471
A
TUNER
AMP
UNIT (4/6)
IC101
:
KHA115
NOISE
SUPPRESSOR
IC151
=
LA3430P
FM MPX
®-
2V
l
R153 C154
r
|g
18
4.1V
[
6
R15
,
J5V
10,01
8
'
2V
3.7V
l'ij-4
1
FM
I
F
OUT
4.5V
'
fj
12
0.4V
0.4V
225
IC10.
5.7V
„v
ic ,5,
2
'
SV
Tiv
4.4
V
OV
OV
0.7V 4.6V
,o/ie
0.3V 0.4V
0.1V
2.7V
7
V
1
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'
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R
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3300p
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8
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lt
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X
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15k
2+T
3.3/50
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:
1SS133.
ISS176
or
US1040M
IC2-3
0.6
8pH
|
LOCAL OSC
]
„
7
,
R59
C57
|
REGULATOR
L54
1
47
0.022
,
I
1
3
lOpH
-*n-\
1
1
r—
i
IC52
IC251
=
M51522AL
Q251.
252
=
DTC124ES
or
UN4212
0251
:
ISS133.
1SS176
Of
US1040M
8.2V
I
<
TAPE+B
)
Q2
:
2SC2753
or
2SC2570
LCD
UNIT
(1/2)
Q51
:
2SK241
IF
AMP
0705
:
2SC2458
or
2SC1740S
-
j
TUNER
AMP
UNIT
(1/6)
G201
••
2SK435
0202
=
2SC2458
or
2SC1740S
O
7204 0 047I
4.2V
1.2
V
1
TT
1
7
-
9V
°-
8V l
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Y
S
0.7VI
1206
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2200p
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C203
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.
47
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sir
7*7
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4
1
w
x
*
I
*
p
1C227
C208
X
t
C222 C220
J,
TO.OI
0-022
|D20
5-3
T
I
00
*1
22P
|
D205
1
KV1235Z3
Q203.
204
:
2SC2458
or
2SC1740S
0206.
207
:
1SS133.
ISS176
or
US1040M
TUNER
AMP
UNIT (2/6)
0801
:
2SK241
RF
AMP
j
WB
IF
& OSC
IC801
:
TK10483Z
K. IF
AMP
I
"I
1"
'Y'C821
0.01
''
r
CB22
0.1
R817
.
-fe
!
..
18k
5
liflj
C823
0.1
C814
"j
.
:
1/50
>
R
T801
r-rrc,
2
fj T802
ig"
S,
,ST
oso
SSS.
{
Q80
< TUNE
VOLT
)
4-
IC501
:
CX-7925B
LOOP FILTER
Q501
:
2SK330
Tsoi
i5
H
H
/
j_
£
0502
0503^02
/
l~503
:
755133713*178*^
US1040M
1
<
UN
LOCK
>
«
-
—
Q502
:
2SC2458
or
2SC1740S
TEST
TAPE:
315Hz
1
60nwb/m
SWITCH P.C.BOARD
|
MRL
2
:
SOMEI068
|
MOTOR
/7S
(CAPSTAN) (M3)-
CXM1007
\S
|
^
IC601
"£1
p
A302
2
Jf-
"C604
,,
C605''
C606
19
DECK
6
"1
20
driver
T"
—
END2
—
-
[°-22
C609
47/6.3
|
|
C610
47/6.3
0601.
602
2SC2458
or
2SC1740S
D601
1
1SSI33.
1SS176
or
USI040M
0602
Q601
pH
\
I2SC2458
or
^SC1740S
j
NOTE:
—
«=>—
Indicates a chip
resistor
—
1
—
Indicates
a
chip capacitor
-EgD—
Indicates
a
chip
inductor
SWITCHES:
•
Switch
P.C.
Board
SI:
CST SET SWITCH
ON-OFF
S2:
CST
IN
SWITCH
ON-OFF
S3:
70mS
SWITCH
ON
(120/iS)
-QFF
(70
jliS)
•
Tuner
Amp
Unit
(3/6)
S451-1:
POWER
SWITCH
ON-OFF
S451 -2:
SCAN
SWITCH
ON-OFF
The
under
lined indicates
the switch position.
SENS
P.C.BOARD
(A)
SENS
P.C.BOARD
(B)
EJECT
PLAY)
FWCXFF)
(REVWEW
>-
FWWREW)
(REVJFF
>-
COMMON
>