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Schematic Diagram - Pioneer CT-S88R Service Manual

Stereo cassette tape deck

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CT-S88R
1
7. SCHEMATIC
DIAGRAM
MAIN
UNIT
3
4
REC EQ.
SELECTOR
(METAL
— OFF)
REC EQ.
SELECTOR
(croz
—ON)
Qt07, 207
REC
EQ, SELECTOR
(METAL
+ ON)
The underlined indicates the switch position.
25
2
bos
oda:
Qu9
BUFFER
>
04,214
DOLBY NR
i.
Ps
-
i
0109, 209 + SWITCHING
O10, 210, SWITCHING
QS
REC
AMP
i
1
r
7
VR UNIT
B/C
PROCESSOR
(dbx OFF)
(dbx = ON)
'
RI75
RI76
f
sos
412
RI77
1
RI34
vsar
Qs
i !
39k |
fis
i
fewer
22k
i)
|
REC LEVEL
Hey
Res
|
Riv2 | Ci7@
4 | svt
[Rew -014
{
A-IN-R
1
390k]
1750
o
C135
Vyeavas
vag
R190
oe
106
veor
|
6
ouT
'
rae
4
Sk-A
'A-IN-P
RI37
Vi03, 203
RIa6
3
wc
Ze.
|y2) veares
1M
REC LEVEL ADU
22k
iio'
@105, 205
(2)
3
£
2
PB REC
VoR HPF
_ , MPF
ver
LINE LINE R/P C/B/0FF
SBI
EAs
jae eae
'
A
us
A-0
IN
IN
VREF
VCC
GND
$S-N
SS-O
BL-O
-L
-L
TL-!
Ti-2
TH-2
SW-7
TH-1
SW-5
-H
-H
BH-O
AS
ouT
-N
sw
sw
ci24
a9
ct36
es:
"Ok F
1
128
Bi
2S
7
6
98
©
WH
2
13
4
1
6
$7
18
19
20,
21
22
24.25
26a?
ae
10/16
'50
Q106, 206
ci70
,
0.047]
73
RITZ
100
Sop
|
LINE
HP cua
Loz
R127
+|crz0 | Rizo:
css
nh
H '0
B Q 3.3k
0.027
0326 | o327
INPUT
R273
716
LIOt
MPX
RNG
36
3
o
RIS6
Liss
7
cl2z6
00018
+
$901, 201
Lalas
ces go
OF
INPUT
SELECTOR)
q
10/16
780
a)
MIC
i)
is
ary
C278
330
R289
QUT
27
t—O
7
RI32Z
R183
cE
MIC AMP
R272
7RCS~030
R316
is
10k
bee
REC
BALANCE
+)
ciso
R
©
7
Bios
poe
i
=
+] cas
+1 6304)
+
.
T pis
rie
317 tt
78
104,204.
REC
MUTING
2
Re
—_
[I
PB EQ AMP
R28
oto
[t3]]
0309
MPX
FILTER
OFF
SWITCH
SS)
cet
103,203
MPX
FILTER
SWITCH
+
(REC & DOLBY NR or dbx ON—ON)
es
Q102, 202
ers
y
PB EG
SELECTOR
J
(NORM -= OFF }
+
+
C225
c232
R228
Reze
R223
+
+
226
yc229 |c230|c223
jcz22
'Sie
| czas
ViOt
ly?
10.0022
Be
7
+
a
10!
L202'
i
|
Ki ou
voz, 202 =
Rzer
C227
C228) Re30
R225 R224
cats
R231
PB
LEVEL
Adu
B
C22!
2EC/PB
HEAD
RW
RPB- 120
430},
22k
5
7
8B
9
0
4
2
13
4
«5
6
I7
8
19
20
2t
22
24
25
26
27
'Wr
v101, 201:
PB
EQ
ADV
23
4
Q318 | INVERTER
R290 c2i2
(REC MUTE
REC
MUTE)
Q319 | INVERTER
CLINE MUTE *LINE MUTE }}
Q305 ~ 307
R39
RCH
OSCILLATION
we
10%
CONTROL
a
ae
|
#
\
{
!
v301,302
REC BIAS ADJ
METAL
r30a2°°9.
0310
\
302
REC|Cros
A
88
Q330.
SYSTEM
CONTROL
'
1
y302 1080p.
301
NORM.
aw)
033!
INPUT
PORT
MICROCOMPUTER
eu
EXPANDER
|
'
v301
C301
1
I
|_|
ay
a Ca
ES OED LS
ERASE
1
ee
ee
aa
ee
ee eee
ee
ee
ee
ESR FR es a
PC
eee
T
CONTIN
59
58
54
63
6
9
ts
7
55
44
4
42
4
36
35
34
33
3
56
60
62
at
BIAS
1-REC SW
I- REC LINE
SONG
MUTE MUTE
0302
4 7%
+
a
a
an
|,
pe
=
fo PA
eae ME: SMD REV"
SEL) MUTE: Y REC: ME PAUSE: ARCS i= 155
r—seL
1
ee [oe Ire fre Ive
ose
osc __ POWER Play 30
10/16
2
1
O
t-SEL
/6
45
44
#1
#10
49
77
78
INH
OPEN
vec
TIMER
A
8
c
0
IND
1
2
3
4
s
6
FWD
FAST
STOP
MS
PLAY
VCC
GND
1
vec
2
RESET
OFF
our
C
geok
302,303
BIAS
OSCILLATOR
{ METAL
zo
24238
6S
2a
10
8
28 SEL#1 29
17,
Ee
ee:
2003
4
5
6
19
18
a2
227823}
SO
249224
SD
retry
=
ia)
{ Croz
1
¢
SWITCH
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304
. OSC
SwiTe
4
6k
q
+O
TPH
@301
RELAY
DRIVER
x
ave. iii
R339
RY301 | RSR-O35
0316
P2ak
o
0.01 | 0.0:
$101,201 ' RKN-092
+e
X30r
9
Q101~108, 116, 201~ 208, 216,
Q324,325
BAGIOS
101, 201, 303:
D3t9 jo3I2
ny
QW, 305, 309, 314, 317,
Q326
BA335
VRTBEVS 103
LIO1, 201: RTF-138
Qaz0~s23 | asci7aos|
327
wsz33p
ve ot.cmeen) || tear areas
INDICATOR
Q109,112, 209,212
28103
330
PD3031A
vaolsaee
(i0k 20s TanTeciae
DRIVE BUFFER
QN0,1tl, 210, 21
28K246
331
Lc7800
VRTB6VSIS4
L105,205: RTF- 153
ans
M5220L
Q332
TCS5O0668P
¢
L301
: RTO-038
tT
QN4,214
AN7370K
D301~305,307~ 322,
X30
| RSS- 035
$3)
Q15, 118,19
MS2t6L
D324~330
192473
Raads Lay soe8)
QHt7, 217
28¢2240
0306
1$R35-100A
R339 © ACX-029
———EE
t
Q302~
304
28C 2060
0323
RO3.0FB1
R346 - RCX- 028
Q306, 307, 315, 318, 319
=
2SA933S
=
cA
SWITCHES
SS
A
MAIN
UNIT
S710 : REC MUTE /10
=-N.O
05
fos
=
=
~~
:
-3
ay
—2
09-2/09-2/09-2]09~-2
|jo9-1
1
109-1/09-1/
10
10
10
S101 : INPUT SELECTOR
L
LINE ~ MIC
S711 : PROGRAM/CLEAR
N.O
-—§3 2?
+
2
2/09 2 |09-
east fogs jos-11i0,
|,
|,
Ly
ee
ae
+}
f
{MIC
JACK
SWITCH)
$712:
SIDE
B
N.O
$
3}
a
?
?
°
°
?
?
°
?
°
°
°
'
°
?
'
4
MECHANISM
$201 | INPUT
SELECTOR
R=
LINE — MIC
$713: START
N.O
bn
Op
On
O p
O n
O n
On
On
bp
6
b,
3,
op
6
4
Ss
MODE CODE
garter 'UNIT
sia Reset
MO
re
(boob oe ob oP ob oP ob cb oP ob | | ob ob ob oe
50-60)
soe
$501: dbx
OFF — ON
$715» SKIP
N.O.
1
giso4
nicos
|
$502:
DOLBY
NR
8
OFF
— ON
POWER
SWITCH
UNIT
METAL
OET.
CrO2
DET
1
gros $702
$701
S7iS
S710
$709
s7o7
S708
L___4
SY
=
:
Z
FF
REW
SKIP s7i2 S713 S7ti
S714
S706
$705 S704
REC
REC
MS + PAUSE
ane eroes NR C
re
ee fe
seek. Saawepoer nit
OFF — ON
51506, 1505 + RSG - 162
7372
4
SIDE START { RESET MS- FWO REV-PLaY
MUTE
/9
47
7/8
=
=
-
B
76
-PLAY
/4
AO:
D
$505: REVERSE MODE
== — >
$1501: ERASE
PREVENT
DETECTOR (REV)
TAPE
TRANSPORT
enn ee
wncanae
sone
=
OPERATION
SWITCH
UNIT
OFF (HOLE) —ON(NON HOLE }
UNIT
(175)
-
-
-
os
jos
jos
jie
MODE
TAPE
TRANSPORT
UNIT (3/5)
S701: REW/1
N.O. (NORMAL
OFF)
$1502: CASSETTE
DOOR
OPERATION
SW
UNIT
-—p Pigg
fs
8702: FF/2
N.O
OFF (CLOSE) — ON(OPEN)
sbiSIe6S. Onc.
"Oa
"9
i
$703: STOP/3
N.O
$1503: ERASE PREVENT
DETECTOR (FWD)
rsc-i62
PIP
oP
$501~503 | RSG-171
$505»
RSH- 066
$704: REV-PLAY/4
—N.0
$1504°METAL TAPE DETECTOR
TAPE
amet
1
S808 REN
Ob,
ee
|
$705:
FWD
- PLAY
NO
S$1505:CrOz2
TAPE
DETECTOR
TRANSPORT!
$1501
SiS02
$1503
SWITCH
UNIT
(2/2)
$706:MS~/6
N.O.
NORM
Croz
UNIT
(275)
AR-REV
DOOR
AR- FWD
S707:
MS+/7
N.O
phe
$708 : PAUSE /8
N.O
tae
$709: REC/9
N. 0.
ee

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Ct-s88r(bk)