Pioneer CT-S520 User manual

d) PIONEER’
The Art of Entertainment
Service
STEREO CASSETTE DECK
CTr-s
CT-S420
CT-S520 AND CT-S420 HAVE THE FOLLOWING:
Type
|
Model
Power
Requirement
Remarks
CT-S520
CT-S420
*Change the connection of the power transformer’s primary wiring.
® This manual is applicable to the following: CT-S520/HEM and HB; CT-S420/HEM
and HB.
® The models and their types in this manual indicate the following:
CT-S520; CT-S520/HEM and HB types.
CT-S420; CT-S420/HEM and HB types.
HEM type; CT-S520/HEM and CT-S420/HEM.
HB type; CT-S520/HB and CT-S420/HB.
CONTENTS
1. SAFETY INFORMATION -++-:-ssseseseccceesecsceeeereeneee 2 7. PCB PARTS LIST ns<sccesteciecicsncessncccess westereorenvas 22
2. PACKING AND PARTS LIST cev:eeccesseesssseceseceoseeees 3 8B. ADJUSTMENTS -:--:cccccscsscstescsssssceccnssaseeeeconeenss 25
3. EXPLODED VIEWS AND PARTS LIST ------seeeeeeees 4 9, IC INFORMATION --ceeesesscccesssceceeseeeeececeeeeeeeeeees 29
4. BLOCK DIAGRAM --+ss--eeeseccccescesccesceesessterseseeees 10 10. FL INFORMATION -+------sesssescecseessseceeeceeeeseenenas 31
5. PCB CONNECTION DIAGRAM.---+-cceecesessceeteeveees 1 11. PANEL FACILITIES ----+---0sseescesssssseeceeeecuseeeeeee ens 32
6. SCHEMATIC DIAGRAM. +<ececceeeseeeeeeesscerreeetereeees 19 12. SPECIFICATIONS cocceccecceesestsceccccececeneeceeeseeeeess 33
PIONEER ELECTRONIC CORPORATION = 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. P.O. Box 1760, Long Beach, California 90801 U.S.A.
PIONEER ELECTRONICS OF CANADA, INC. 300 Alistate Parkway Markham, Ontario LR OP2 Canada
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Meisele, Belgium
PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia TEL: [03] 580-9911
© PIONEER ELECTRONIC CORPORATION 1993 SF MAR. 1993 Printed in Japan

CT-S520, CT-S420
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual
do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trained to properly and safely repair complex products such as those covered by this manual.
improperly performed repairs can adversely affect the safety and reliability of the product and may void
the warranty. If you are not qualified to perform the repair of this product properly and safely, you should
not risk trying to do so and refer the repair to a qualified service technician.
WARNING
Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which
may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with
the solder. Also, when soldering do not inhale any smoke or fumes produced.
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols -§£— (fast operating fuse) and/or -§£—® (slow operating fuse) on PCB indicate that replacement parts
must be of identical designation.
REMARQUE
(POUR MODELE CANADIEN SEULEMENT)
Les symboles de fusible -—§E— (fusible de type rapide) et/ou ~§E— (fusible de type lent) sur CCI indiquent que les
piéces de remplacement doivent avoir la méme désignation.
(FOR USA MODEL ONLY)
1.SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appliance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5mA.
Reading should
Leakage | "ot be above
current | 0.5mA
tester
Test all
exposed metal
Surfaces
83
©) Also test with
plug reversed
{Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUFLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.
2.PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained by using replacement components rated for vol-
tage, wattage, etc. Replacement parts which have
these special safety characteristics are identified in
this Service Manual.
Electrical components having such features are
identified by marking witha A on the schematics and
on the parts list in this Service Manual.
The use of a substitute replacement component which
dose not have the same safety characteristics as the
PIONEER recommended replacement one, shown in
the parts list in this Service Manual,. may create shock,
fire, or other hazards.
Product Safety is continuously under review and
new instructions are issued from time to time. For
the latest information, always consult the current
PIONEER Service Manual. A subscription to, or ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.

CT-S520, CT-S420
2. PACKING AND PARTS LIST
NOTES:
¢ Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
© The A\ mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure
to use parts of identical designation.
Parts marked by “@” are not always kept in stock. Their delivery time may be Jonger than usual or they may be unavailable.
Parts List
Mark No. Description Part No.
1 Pad (L) RHAI1111 101
2 Pad (R) RHA1112
3 Packing case RHG145200
(For CT-S520/HEM) i \
3 Packing case RHG1459 | 10 |! me
(For CT-$520//HB) | BF 4 ee |
3 Packing case RHG1453 oie ft Op
(For CT-S420/HEM) fo wes | is |
3 Packing case RHG1460 a eal ee
(For CT-S420/HB)
4 Sheet RHX — 034 6 12
5 Connection cord RDE - 010 9 5
(For AUDIO)
6 Control cord RDE1030
(For CD * DECK SYNCHRO)
7 Operating instructions RRD1135
(German /Italian/Dutch/ 14
Swedish//Spanish / Portuguese)
(HEM type only)
8 Operating instructions RRE1076
(English “French)
9 Remote control unit RPX1066
(CT-S520 only)
10 Battery cover RZN1007
(CT-S520 only)
11 Spacer A RHC1044
12 Cord with mini plug PDE — 319
(For SR cord) (CT-S420 only) 13
13 Pad spacer A RHC1039
(HB type only)
14 Pad spacer B RHC1041
(HB type only)
a
NSP 101 Battery (R6P,AA) | VEM-O13 o NS
(CT-S520
only)
-
1
WN

CT-S520, CT-S420
3. EXPLODED VIEWS AND PARTS LIST
3.1 EXTERIOR
NOTES:
¢ Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
*
The
4,
mark
found
on
some
component
parts
indicates
the
importance
of
the
safety
factor
of
the
part.
Therefore,
when
replacing,
be
sure
to
use
parts
of identical
designation.
*
Parts
marked
by
“@”
are
not
always
kept
in
stock.
Their
delivery
time
may
be
longer
than
usual
or
they
may
be
unavailable.
Parts List
Mark
No.
Description
Part
No.
Mark
No.
Description
Part
No.
a
1
Strain
relief
CM
—
22B
36
Bonnet
REA1077
A
2
AC
power
cord
RDG1026
37
Front
panel
(For
CT-S520)
RAH2234
(For HEM type) 387 Front panel (For CT-S420) RAH2235
A
2
AC
power
cord
RDG1024
38
Screw
ABZ30PO080FMC
(For
HB
type)
39
Screw
BBZ26PO60FMC
A 3 FU801, FU803 Fuse REK — 100 40 Screw BBZ30PO60FZK
(TI1AL250V)
Name
plate
RAM1007
41
Screw
BBZ30PO80FMC
A
5
Power
transformer
(T1)
RTT1221
42
Screw
BMZ26P040FMC
43 Screw IPZ20PO80FMC
6
Cord
clamper
RNH
—
184
44
Screw
IBZ30P150FCU
7
Ratchet
spring
RBH1008
45
Pulley
gear
(CT-S520
only)
RNK1517
(CT-S520 only)
8
Half
pressure
spring
RBK1004
46
Joint
(CT-S520
only)
RNK1895
9
Main
unit
(For
CT-S520)
RWZ2885
47
Cam
gear
(CT-S520
only)
RNK1896
9
Main
unit
(For
CT-S420)
RWZ2877
48
Binder
REC
—
371
10
DISP
unit
(For
CT-S520)
RWZ2887
49
Lead
card
33P
RDD1284
10
DISP
unit
(For
CT-S420)
RW2Z2879
50
Connector
assembly
2P
RKP1384
11
s«1/
unit
RWX1086
51
SW
lever
(CT-S520
only)
§RNK1897
©
12
HX
unit
RWX1069
52
Loading
base
assembly
RXA1548
13 Insulator PNW1912 (CT-S520 only)
14.
Lens
$
PNW1893
53
Eject
knob
(CT-S420
only)
RAC1772
15
LED
lens
PNW2019
54
Door
spring
L
(CT-S$420
only)RBH1341
55 Damper assembly REC1005
16 VR knob RAC1707 (CT-S420 only)
17 Power knob RAC1809
18
Operation
knob
RAC1I795
56
Screw
(CT-S420
only)
BCZ26PO50FMC
19
Balance
knob
RAC1705
57
Pin
cap
(HB
type
only)
VECI1616
20
Mode
knob
A
(For
CT-S520)
RAC1798
58
Screw
(CT-S420
only)
IBZ26PO80FMC
20
Mode
knob
A
(For
CT-S420)
RAC1800
59
Eject
spring
(CT-S420
only)
RBH1342
60 Washer (CT-S420 only) WA52D080D025
21
Slide
knob
RAC1713
NSP
101
OPSW
unit
RW2Z2888
22
Mode
knob
B
RAC1808
NSP
102
TRN
2
unit
RW2Z2890
23
Door
lens
(For
CT-S520)
RAH2265
NSP
103
MECS
unit
(CT-S520
only)
RW2Z2891
23
Door
lens
(For
CT-S420)
RAH2171
NSP
104.
MECM
unit
(CT-S520
only)
RWZ2892
24
Stabilizer
panel
RAH1483
NSP
105
TRN
1
PCB
RNZ2390
© 25 Mechanism unit RYM1203
(For CT-S520) NSP 106 Mechanism bracket RNE1601
©
25
Mechanism
unit
RYM1204
NSP
107
Rear
panel
(For
CT-S520)
RNAI1681
(For
CT-S420)
NSP
107
Rear
panel
(For
CT-S420)
RNA1682
NSP 108 PCB spacer PNY — 404
26
Screw
(CT-S520
only)
PBA
—
125
NSP
109
Trans
shield
plate
RNE1451
27
~=Stabilizer
B
REB1085
NSP
110
Main
chassis
RNB1090
28 Remain display paper REE — 113
29
Door
pocket
(For
CI-S520)
RAH2243
NSP
111
Connector
assembly
4P
RKP1111
29
Door
pocket
(For
CT-S420)
RAH2230
NSP
112
Connector
assembly
4P
RKP1112
30
Door
side
panel
R
RAH2261
NSP
113
Arm
Collar
(CT-S420
only)
RLA1124
(CT-S520
only)
NSP
114
Eject
arm
(CT-S420
only)
RNE1597
31 Door side panel L RAH2262
(CT-S520 only)
32 Rubber belt (CT-S520 only) PEB1127
33 Motor pulley (CT-S520 only) PNW1634
34 FL lens (For CT-S$520) RAH2239
34 FL lens (For CT-S420) RAH2291
35 DC motor (CT-S520 only) PXM1010

pee
ost
1
2
I
3
I
4
I
CT-$520,
CT-S420
Exterior
CT-S520 only
‘
A
3
B
C
C
Y a
a 27 ; \ : “>I 5
24
5
CT-S420 4 > :
Q y ; ay
~s
- “>
fs
‘BRD
.
=
eros
F
:
3
‘
|
0
D
NOTE: Screws adjacent to V mark on the product
are used for disassembly.

|
CT-$520, CT-S420 f
3.2 MECHANISM UNIT (RYM1203 and RYM1204)
A RYM1204 only
This
screw
No.
44
is
the
part
to
hold
the
cam
gear
for
servicing,
when
the
hook
holding
the
cam
gear
No.
24
is
broken.
C
6
RYM1204
only
D
D

ro)
ql
of
”
-
S)
oO
rot
in
“”
_
©
BLOCK DIAGRAM
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Parts List
Mark No.
Description
Fixed core
Planger
Head (R/P)
Head (E)
Push SW
MTR reel BLK
MTR main BLK
Solenoid BLK
Photo — transistor
Main belt
Pinch roller ass’y
F/W ass’y
Washer
Pan 26X64 ZN
Washer
Reel base BLK
Idler BLK
Washer
Azimuth SP
Head base SP
Slide SP
Play arm
Cam gear (3R)
Lever SP (L) (EJECT)
Eject prevention
spring (L)
Spring (CASSETTE)
Lever collar B
Detector lever (REC)
Metal detector lever (L)
Detector lever (P)
Screw
Plate HD BLK
Screw
F lock screw
Screw (7.7)
Screw
Washer
Washer
Holder cushion (L)
F lock screw
Screw
PCB control BLK
Part No.
RLA1130
RLA1132
RPB1047
RPB1040
RSG1018
RXM1057
RXM1058
RXP1010
SPI33534FG
REB1163
RXA1183
RXA1346
WA26D045D025
RBA1076
RBF — 057
RXA1184
RXA1248
RBF1038
RBH1076
RBL1003
RBH1239
RNK1525
RNK1672
RBH1262
(RYM1204 only)
RBH1234
(RYM1204 only)
RBK1048
RLA1146
(RYM1204 only)
RNK1527
RNK1529
RNK1543
(RYM1204 only)
RBA1101
RXA1488
PMA26P050F MC
RBA1031
RBA1048
(RYM1204 only)
RBA1078
(RYM1204 only)
WA26D047D050
YE15FUC
RED1027
RBA1102
RBA1068
RXA1556
(RYM1203 only)
RXA1487
(RYM1204 only)
Description
Chassis base BLK
Head base
Head spacer
CT-S520, CT-S42¢
Part No.
RXA1557
RNE1390
RNK1836
Eject prevention arm (L) RNE1199
Lever (L) (EJECT)
Screw
(RYM1204 only)
RNK1593
(RYM1204 only)
PMZ20P080F MC

st |
tr i of i
5.
PCB
CONNECTION
DIAGRAM
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