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Pioneer CT-91 Service Manual page 10

Stereo cassette deck

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FL
UNIT
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ee
———{i
ee
ee.
rer
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ere
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oe
POWER SUPPLY UNIT
1C901 —1C903
LC7570
1C701, 1C702
BA6109
BA6138
—-1C101, IC102
M5220L
Q128
28¢2240
:
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han,
1ss254
IC901-1C903; FL DRIVE
Q702
25A1283
CX20188
—IC117
NJM78M09FA
Q103-Q106,
2SC3311A
i
CONTROL
706, Q707, Q713
SeATaDOA
M5201L
C118
NJM79MO9FA
x & ®
Q109-Q118, Q301
"nse
Q7is
.
g
113,
M5218P
= Q127
2SA970
283
Q302
2SA1309A
00 T
our
0708
580096
301
Q130
2SB950
Q129
2SD1276
ars
+
Vas
Q705, Q709, Q711,
2SC3311A
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Q712, Q714
Q701, Q703, Q704,
2SD1276
Q107, Q108, Q119,
—- 28D1302
LINE ouT
FL_DISPLAY: RAWIOI8
Q710
Q120
Donen
f
D723
MTZ10C
&)een
D716
MTZ13B
Q125, Q126
28K 246
D718, D719
MTZ6.2B
Q101, Q102
2SK389
D724
MTZ6,.8C
D101, D102
HZ5CLL
pall
D713
RD2.7EBI
D103, D104
HZ2CLL
Sosy
D709
1B2C1—LC2
core
| zr
D711
1B2Z1—LC2
23
D714, D715, D720,
1SR35—100A
01~D304
188254
— (sor
ifs
D721
6
MTZ7. 5B
Hy
a of
D705, D706, D722
188254
)1~S303
RSG1017
Se ea
re
(ert
2h
aE
LIAL ALS 213
D701 ~D704
1ODF2FA9
301
RSR-039
=
23
a
Sere es SSS
BR SBS ahas
ie
aig
21~L106
RTF 1022
HEADPHONE UNIT
17
MTZ12B
IC401
M5218L
HEADPHONE UNIT
I
$701
RSA-063
105-VR108
VRTB6VS223
VR401
RCV1009
agi
1eaone
L701
RTF 1075
103, VR104
VRTB6VS333
l
50
C733
VCG~044
101, VR102
VRTS6VS222
C701, C702
RCH1021
109, VR110
VRTS6VS472
720
RCH1010
°
10302; x7 FUNCTIONAL
S
——
zane
_
a
=
CONTROL "UNI
Ter [ams]
"SUPPRESSION Ame
Dil SLF-401C REC SW UNIT
ECHE UNIT
SENSOR
UNIT (A)
SENSOR UNIT (B)
Tee
waaae
av
316
mv
=
=
~
barre
.
Ss!
(474)
DI
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D2.
GPIAS81HR
1¢802
M5233L
HALF IND
RSG
-143
1C801
PD4148B
bydve
ony,
;
'
1C803
u PD4050BC
:
OK,
]
1
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l
Q803~Q806
2SA1309A
1
807
DTC143ES
,
Q801, Q802
2SC3311A
&
M ae
(REC INH SW)
Q808
2SD1302
|
are
st
o—0
D801-D805
1S$S254
°
Rigo
(3/4)
=,
Nese
R826
DCN1009
'860:
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Ns
Z
ie
LLL JConnector
R844, R847
RCX1008
eo ey
UNITCZ/2)
R833
RCX1009
R306
-
q
OS
R827
RCX1010
A | %
'Sex
R307 755
YYYYY
X801
VvSS1014
\
too
t
cs
0,01
fi
|
INPUT VR UNIT
VR501
RCV 1005
VR502
RCV 1008
x
as
=_
io
$
| INPUT_VR_UNIT
pegs,
oma
yt
Ta
[2]
[
TT
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|
ae
ee
ey
an
Pay
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| ae
=
ce
4
cn25272)) |
0801-0803
;METER
RANGE
SWITCH
1c 802;
1€803, BUFFER
COMPARATOR
PT
o.
abe
©
ee
ect
tS
ee
=
a
1.
RESISTORS:
Fase
c229
Q804~- 0807,
=
>
al
Indicated in 9, 1/4W, 1/6W and 1/BW. +5% tolerance unless otherwise
Sp)
FiO1: MPX Huu.
goo"
MUTE DRIVE
ime
!
noted ki k2, M; MQ, (F); +1%, (G); +2%. (K); +10%, (M); +20% tolerance
.
F102:
=
LINE IN|
RB21,
RB22
.
RAT ICI,
ers
Fiol,
:
Reas
pee Se ates
1
2. CAPACITORS:
we REC DOLBY B/C
eal
'tare
1€109; LINE AMP
VRSO1: REC LEVEL
|
270K
Indicated in capacity (uF)/voltage (V) unless otherwise noted p: pF
tk
47k
!
R502: REC BALANCE
Indication without voltage is 50V except electrolytic capacitor.
3.
VOLTAGE,
CURRENT:
opin
2h adn
2
"I: OC voltage (V) at no input signal Value in{
—_) is DC voltage at
rated
power.
z
vR502-2.
230
4.
SWITCHES:
100%
oro?
The underlined indicates the switch position.
C4
AMP UNIT
ll
$301:
DOLBY
NR
ON - OFF
$302
DOLBY
NR
B-C
ve
bet hey
©) wen
$303:
MPX FILTER
ON-OFF
ax
SW UNIT
rary
!
$1001: STOP =
1cBo1
SENSING S
$1002:
REW
ad
5
¥
2
Ew
© SENSING T2
$1003:
REC
@
be
FSe.@
5,
ertacstanstad
&
Z
2
x
x = SENSING TI
$1004: OPEN/CLOSE &
5
=
Nu -
>
«
°
e
«
a
a
enn CONTROL UNIT
ge
FsizesS7PPe
bese gt ig és
gobee
eg
Sio0e {oalces
ae
oul
sLiojes| 1] 2s ]es[zafesfzz[2i]20f19] 11]
3
$1007:
TAPE RETURN
$1008;
PLAY >
$1009: COUNTER RESET
$1010:
COUNTER
MODE
By} 14
7
an ie
[A
u
ou) bal eel oe
0.01
=
iii
$1011:
HUB
AOTOR DRIVE
# Reze |
$1012:
METER RANGE
nora 6)
i
$1013:
MONITOR AUTO
eret
(eaeesy
in fs es fr [ie Be in
$1014:
REC MUTE ©
sft
TAPE SELECTOR
SELECTOR
UNIT
4h,
1,
a5
s2
TAPE SELECT
METAL~CrO2
L @%
Ee
$3
TAPE SELECT
© NORMAL-NOAMAL
TIMER UNIT
$1101:
TIMER
REC - OFF ~ PLAY
REC SW UNIT
Si:
REC INH
OFF-ON
MECHA
UNIT
A)
I, |p)
16804; BLANK SEARCH
_
S011:
DOOR
CLOSE
- OPEN
3
0.808; PLAY/FAST SENSITIVITY SWITCH [o
POWER
SUPPLY
UNIT
S701:
POWER
ON-OFF
ee
TIMER
UNIT TAPE SELECTOR UNIT
- |
SS
lont2
— hs
2
re
—{
5. OTHERS:
$1001-~S1014
RSG —155
Foal riz
fs
S1101
RSH1001
MET
©
METAL
mp: Signal route
—slo! rot
suo
I
: Adjusting point.
SERVO
Stott
ts
il
croz
U o
Sro2
The A\ mark found on some component parts indicates the importance of
pa ba
to
the safety factor of the part. Therefore, when replacing, be sure to use
end
Mean [aoe fe se | POCA
RON Skat
ot bas
as |
REC 9 g > ud PLAY
NOR
o o
|
parts of identical designation.
orieen ne
O B
I b n
Joe
pom
p o u
poe
g o
mi
On
°
vee
3X marked capacitors and resistors have parts numbers.
HAHAHAHA
oft
wan Ue
nommat
ETA
aba
SAR
Geel
Wis
Mn
oth
S3
This is the basic schematic diagram. but the actual circuit may vary due to
7
C4
$2, $3
RSH-070
—ee
a
cS
a
ee
oe ace
-
improvements in design.
UD
N
00
Ce)
10
11

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