Pioneer CT-660BK User manual

W) PIONEER’ W23
Service
REPAIR
&
ADJUSTMENTS
ORDER
NO.
Tee aaa = ARP-796-0
STEREO CASSETTE TAPE DECK
CT-GGO(BK),CT-660
CT-S1I1IBK),CT-S11
(KU type only) (KU type only)
CT-S11 is the same as the CT-660 except for the exterior design .
Both models CT-660 and CT-S11 come in two colors, black and silver.
As to the circuit descriptions, please refer to the CT-960 service manual (ARP-788-0).
Models CT-660 (BK: black) and CT-660 (silver) come in versions distinghished as follows:
Applicable
model
7
ae
Power requirement
Destination
CT-660
(BK)
CT-660
10) AC120V only U.S.A,
AC120V only Canada
AC120V/220V/240V (switchable) General market
AC220V (240V)* European continent
AC240V (220V)* United Kingdom
AC240V (220V)* Australia
*Change the primary wiring of the power transformer.
e This service manual is applicable to the KU, HEM, HB and D types.
e As to the HEM, HB and D types, please refer to pages 40 — 43.
© As to the HP type, please refer to the additional service manual (ARP-797-0).
e As to the KC type, please refer to additional service manual (ARP-798-0).
© Ce manual d’instruction se fefére au mode de réglage, en francais.
e Este manual de servicio trata del métado adjuste escrito en espafiol.
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS [USA] INC. P.O. Box 1760, Long Beach, California 90801 U.S.A.
TEL: (BOO) 421-1404, (BOO) 237-0424
PIONEER ELECTRONIC [EUROPE] N.V. Keetbergiaan 1,2740 Beveren, Belgium TEL: [phone]:08
PIONEER ELECTRONICS AUSTRALIA PTY.LTD. 178-184 Boundary Road, Braeside, Victoria 3195, Australia
TEL: [phone]
YH© FEB. 1985 Printed in Japan

CONTENTS
1. SPECIFICATIONS .................000.. 3
2. FRONT PANEL FACILITIES ............. 3
3. DISASSEMBLY ......... 0.0.00 cee eee 4
4. PARTS LOCATION ...........-.0-.000. 6
5. ELECTRICAL PARTS LIST .............. 8
6.-PACKING 2x05. cask eee eda haa eae SAGA 11
7, P.C. BOARDS CONNECTION DIAGRAM ..... 12
SAFETY INFORMATION
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service tech-
nician.
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 appli-
ance (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.
Leakage
current
tester
Reading should
not be above
0.5mA
Test all
exposed metal
surfaces
2-wire cord
Also test with
O plug reversed Earth
(Using AC adapter ‘ ground
plug as required)
AC Leakage Test
8. SCHEMATIC DIAGRAM ................ 15
9. EXPLODED VIEW.................00.. 18
10. ADJUSTMENTS ..........0 000.00 cee 25
REGUAGES*§: 4c occ a Beh oa actors 30
AJUSTES: o2-o6/s faces s.0.b eg wae es 35
11. SUPPLEMENT FOR HEM,
HB-AND: D TYPES). .c025 ebay oe ees 40
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED 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 appliance
have special safety related characteristics. These are often
not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety charac-
teristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with a4 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 additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
PIONEER.

QUESTIONNAIRE MODEL
One Model per questionnaire
Dear Servicer,
Thank you for your cooperation in the post-sale service of Pioneer products.
This questionnaire is used as a tool to improve the serviceability of our products and service manuals.
Please evaluate this model and service manual by answering the following questions. Your ideas may be
realized in our future products. Your answers will be appreciated. Thank you.
PIONEER ELECTRONIC CORP.
a
. Nakagawa, Manager, Service Section, International Division
SERVICING
EVALUATION
Circle
applicable
number:
Good
Fair
Poor
Disassembly
/Re-assembly:
|
2
2 3
*4
*5
b. Circuit Checks: 1 2 3 *4 *5
—
c. Replacement of Parts:
d.
Adjustment
(s):
1
2
3
*4 *5
* If (4) or (5) was circled, please be specific.

e. Your advice, opinion or ideas related to servicing this product.
2. SERVICE MANUAL EVALUATION
a. Circuit & Mechanism Description
b. Circuit Diagram
3. OTHER
Please describe other areas of servicing which you may find difficult.
Completed by : Date :
Company Name :
Address :
City/State/Zip :
Please send this form filled to the distributor in your country.

1. SPECIFICATIONS
PV STOOD oe he AES Pm Goere tee RO 4- track, 2-channel stereo
Heads ....... “Hard Permalloy” recording/playback head x 1
“Ferrite” erasing head x 1
Mth . discs e she tes. Bled ios id BE ates DC servo motor x 1
Bla ods dey rset wed No more than 0.07% (WRMS)
No more than +0.19% (DIN)
Fast Winding Time . . . . Approximately 90 seconds (C-60 tape)
Frequency Response
~20dB recording:
Normal tape... ....... 020000 e 30 to 14 000Hz
Chrometape ..........-.00+0008- 30 to 15 000Hz
Metal tape... 2. ee ee ee 30 to 15 000Hz
Signal-to-Noise Ratio
Dolby NR GRE: c4 ac5 ee oo iw ek we we More than 57dB
Noise Reduction Effect
Dolby B-type NR ON
Harmonic Distortion...........
Input
(Sensitivity)
MIC (L,R)
Ot ih ai As Me telsialhe More than 10dB (at 5kHz)
No more than 1.5% (OdB)
Oe Bae BARE ete ad 0.3mV, 6mm diam. jack
(Source impedance 60022)
LINE (INPUT)... 0... 0.000 2 ee ee ee eee 50mV
(Input impedance 68k2)
Output (Reference level)
LINE (OUTPUT) .......... 0.00 2 eee eee 316mV
(Output load impedance 4k2)
2. FRONT
@ RESET button
CT-660,CT-S11
Furnished Parts
Operating instructions... 2... . 2. ee es 1
Connection cord with pin plugs
Subfunctions
Cue and Review function
Doiby NR system (B type)
3 position tape selector (NORM/CrO2/METAL)
Oi! damped eject function
Full automatic stop function
Timer stand-by function
LED tevel meter
One-touch recording
Miscellaneous
Power requirements
KU,KC models... . 2... 0... ee eee AC120V, 60Hz
HEM model ............-.-.2 0000 AC220V, 50/60Hz
HB, HP models ...........0.00000% AC240V , 50/60Hz
D, D/G models . . . AC120V/220V/240V, 50/60Hz (switchable)
Power Consumption
KU, KC models: v5.6... 3 95 S844 oe alea Nal bare els 10 watts
HEM, HB, HP models ..........0.0 005 eee 10 watts
De. D/Grodels: 33.2 ok ahve 5 Be es oa ee ek eS 8 watts
Dimensions ............ 420 (W) x 109 (H) x 222 (D) mm
16-9/16 (W) x 4-5/16 (H) x 8-12/16 (D) in
Weight (without package) ..-..........05 3.2kg (7 Ib 1 oz)
NOTE:
Specifications and the design subject to possible modifica-
tions without notice due to improvements.
PANEL FACILITIES
@ REC indicator
@ TAPE COUNTER
@® EJECT button
@ Level meter
REC LEVEL control
= (8
Sai 1
= i key) oor y
rT
oo i
moo Casta oo
7 7
a
@ POWER switch
© Operation switches
° (Rec)
< (REW)
> (Play)
2 (FF)
> (Stop)
oo (Pause)
© MIC jacks
@ DOLBY NR switch
@
TAPE
SELECTOR
switches
NOTE:
The unit’s POWER switch is geared to selecting the transformer’s
secondary and so even at the STAND-BY position, the unit’s cir-
cuitry will work as long as the power cord is connected to power
outlet. Disconnect the power cord from the power outlet when
you do not plan to use the unit for a long period of time.

CT-660,CT-SI
3. DISASSEMBLY
Disassembly of Tape Transport Unit Motor Replacement
1. Remove the bonnet. 1. Remove the tape transport unit from the deck.
2. Disconnect the motor jead wires from the motor.
Undo the two screws
in the rear panel
2. Temporarily pass the counter belt around a chassis 3. Remove the drive belt B and then remove the drive belt A.
hook.
Drive belt A Oo
Drive belt 7
3. Open the cassette. door. 4. Temporarily pass the capstan belt around a chassis boss.
Counter blet
4. Undo the four screws securing the tape transport unit,
pull the unit out towards the rear.
Capstan belt

CT-660,CT-S11
Capstan Belt Replacement
5. Remove the flywheel holder plate. 1. Remove the tape transport unit from the deck.
2. Remove the drive belt B and then remove the drive belt A.
3. Temporarily pass the capstan belt around a chassis boss.
4. Remove the flywheel holder plate.
5. Replace the capstan belt.
Undo the three
securing screw
6. Replace the motor assembly
Capstan belt
Undo two securing
screws and replace
the motor assembly.
6. Reassembly in the reverse order.
. Pass the belt around the pulley, and re-assemble in the
reverse order.
. Adjust tape speed according to the '‘Tape Speed
Adjustment” procedure.

CT-660,CT-S11
4. PARTS LOCATION
Parts without part number cannot be supplied.
The /\ 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.
e For your Parts Stock Control, the fast moving items are indicated with the marks
wk and *.
wk GENERALLY MOVES FASTER THAN *.
This classification shall be adjusted by each distributor because it depends on model
number, temperature, humidity, etc.
Front Panel View (CT-660)
Door
RNM-060 (BLACK)
RNM-061 ((SILVER)
Door panel
RAH-665 (BLACK without D type)
Tape counter
RAW-211
Bonnet case
RNA-730 (BLACK)
RNA-731 (SILVER)
RAH-666 (SILVER)
RAH-661 (CT-660 [BK]/D)
Display panel
Meter panel
RAH-639
RAH-637 (BLACK without D type)
Knob (EJECT)
RAC-596
RAH-638
(SILVER)
Knob
(POWER)
RAH-650
(CT-660
[BK]/D)
RAC-598
Knob (REC)
RAC-529 (BLACK)
RAC-527 (SILVER)
Knob (REW)
RAC-530 (BLACK) : :
RAC-528 (SILVER)
Knob (PLAY)
RAC-525 (BLACK)
RAC-523 (SILVER)
Knob (FF)
RAC-532 (BLACK)
RAC-531 (SILVER)
Knob (STOP)
RAC-534 (BLACK)
RAC-533 (SILVER)
Front Panel View (CT-S11)
Front panel
RAH-711 (BLACK)
RAH-710 (SILVER)
Knob (REC LEVEL)
RAC-597
Phone jack with switch (MIC)
RKN-092
(RKN-087)
Knob (DOLBY NR)
RAC-577
Knob (TAPE SELECTOR)
RAC-577
Knob (PAUSE)
RAC-526 (BLACK)
RAC-524 (SILVER)
Door
RNM-062 (BLACK)
RNM-063 (SILVER)
Tape counter
RAW-211
Bonnet case
Door
panel
RNA-730
(BLACK)
RAH-667
RNA-731
(SILVER)
Knob
(EJECT)
Met
|
RAC.596
RAH-639
Knob
(POWER)
Display
panel
RAC-598
RAH-650
Knob
(REC)
RAC-529 (BLACK)
RAC-527 (SILVER)
Knob (REW)
RAC-530 (BLACK)
RAC-528 (SILVER)
Knob (PLAY)
RAC-525 (BLACK)
RAC-523 (SILVER)
Knob (REC LEVEL)
RAC-597
Phone jack with switch (MIC)
RKN-092
(RKN-087)
Knob (DOLBY NR)
RAC-577
Knob (TAPE SELECTOR)
Knob (FF)
RAC-
RAC-532
(BLACK)
ee
RAC-531 (SILVER) Knob (PAUSE)
Knob (STOR)
RAC-534 (BLACK)
RAC-533 (SILVER)
RAC-526 (BLACK)
RAC-524 (SILVER)

CT-660,CT-S11
Rear Panel View
/\ Strain relief
REC-395
Terminal
(LINE)
pA
AC
power
cord
RKB-023
RDG-048
Top
View
/\
®
Power
transformer
(120V)
RTT-437
+k
Motor
i
Main
unit
RXM-130 Tg
/\
te
Push
switch
(POWER)
YRunié
RSA-063
Tape transport unit

CT-660,CT-SI1
5. ELECTRICAL PARTS LIST
NOTES:
e When ordering resistors, first convert resistance values into code form as shown in
the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm
and 47k ohm (tolerance is shown by J = 5%, and K = 10%).
5602 56x 10' 561
47kQ 47 x 10° 473
0.52 ORS se Be ees
12 O10! osomieiis cies
Ex, 2
tors).
5.62k2 562x 10' 5621
RD*PS HEM
RD*PS AMG
RN2H ORE K
RSIPOMOK
When there are 3 effective digits (such as in high precision metal film resis-
RN%SR BAA) F
e The £\ 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.
e For your Parts Stock Control, the fast moving items are indicated with the marks
wk and *.
wk
GENERALLY MOVES FASTER THAN x.
This classification shall be adjusted by each distributor because it depends on model
number , temperature, humidity, etc.
Miscellaneous Parts
P.C. BOARD UNITS
Mark Symbol & Description Part No.
Main unit non supply
Indicator unit
VR unit
Power switch unit
OTHERS
Mark Symbol & Description Part No.
A\ *& 71 Power transformer (120V) RTT-437
A AC Power cord RDG-048
A Strain relief (for AC power cord) REC-395
Tape counter RAW-211
wk Motor RXM-130
wk =~ REC/PB head RPB-122
* ~~ Erase head RPB-085
wk = S11 Lever switch (Play) RSN-034
wk = $2 Spring switch (FF) RSN-035
Main Unit
SEMICONDUCTOR
Mark Symbol & Description Part No.
wk 0301 HA12045
wk = 0302 M5218L
wk = Q101, Q102, 0201, A202 2SC2240
wk = 103 — 0107, A203 — 0207 28C1740S
**k = 0306, 0307 2SC1815
A\e* 303, 0304 28D 1406
kk 305 2SA933S
A. * D301 — D304 1SR35-100A
* D305, D309 182473
Mark Symbol & Description Part No.
/A\ * D306, D307 RD13EB1
(RD13EB2)
(MTZ13A)
(MTZ13B)
* D308 RD5.1EB2
(MTZ5.1B)
SWITCHES
Mark Symbol & Description Part No.
wk = $301 Slide switch RSH-078
kk = §302, S303 Push switch assembly RSG-174
kk = S304 Push switch RSG-175
COILS AND FILTERS
Mark Symbol & Description Part No.
L301 OSC coil RTD-032
L102, L202 Trap coil RTF-152
L101, L207 MP x filter RTF-138
L103, L203 Peaking coil RTF-129
CAPACITORS
Mark Symbol & Description Part No.
C120, C220 CEAR27M50
C125, C225 CEJAR33M50
C121, C221 CEAR82M50
C113, C114, C118, C122, C124, CEA010M50
C130, C133, C213, C214, C218,
C222, C224, C230, C233
C117, C217, €319 CEA4R7M50
C103, C203 CEANLO10M50
C107, C109, C111, C126, C207, CEA100M16
C209, C211, C226, C307
C104, C106, C204, C206, C306 CEA330M16
C303 — C305, C318 CEA101M16
C302 CEA101M25

Mark Symbol & Description Part No.
C320, C321 CEA221M16
C301 CEA102M25
C123, C223 CKDYB681K50
C310, C371 CKDY X332K25
C116, C216 CKDYX472K25
C129, C229 CKDYX562K25
C128, C228, C309 CKDYX682K 25
C127, C227 CKDY X822K25
C108, C208 CKDYX103K25
C110, C210, C312 CKDYX153K25
C119, C219 CKDYX183K25
C115, C215 CKDYX333K 25
C313 COPA562J100
C132, C232 CCDSL101K500
C101, C102, C131, C201, C202, CKDYB471K50
C231
C105 C205 CCDSL220J50
RESISTORS
Note: When ordering resistors, convert the resistance value
into code form, and then rewrite the part no. as before.
Mark Symbol & Description Part No.
* V101, V102, V201, V202 VRTB6VS223
Semi-fixed (22k)
V103, V203 = Semi-fixed (150k) VRTB6VS154
A\ R316, R301, R303 RD1/2PMF coos
R104, R204 RD1/4PM ood
R105, R205 RD1/4PM753JNL
Other resistors RD1/6PM coos
OTHERS
Mark Symbol & Description Part No.
Shield case RNH-209
Phone jack with switch (MIC) RKN-092
(RKN-087)
Terminal (LINE) RKB-023
Indicator Unit
SEMICONDUCTORS
Mark Symbol & Description Part No.
wk Q401 IR2E27A
* D405 — D410, D413 SEL4214S
* D401 — D404, D411, D412 SEL4914A
CAPACITORS
Mark Symbol & Description Part No.
C403 CKDY F473Z50
C401, C402 CEA330M16
C404, C405 CKDY B471K50
RESISTORS
Note: When ordering resistors, convert the resistance value
into code form, and then rewrite the part no. as before.
Mark Symbol & Description Part No.
All resistors RD1/6PM on0J
VR Unit
RESISTORS
Note: When ordering resistors, convert the resistance value
into code form, and then rewrite the part no. as before.
Mark Symbol & Description Part No.
* VR501 Variable (REC LEVEL) RCV-118
Power Switch Unit
SWITCH
Mark Symbol & Description Part No.
/\*%* $601 Push switch (POWER) RSA-063
10

rt the resistance value
e the part no. as before.
Part No.
RD1/6PM cagJ
rt the resistance value
2 the part no. as before.
Part No.
=L}) RCV-118
Part No.
RSA-063
10
6. PACKING
Mark No. Part No. Description
1 RHG-814 Packing case
(CT-660 black)
RHG-817
(CT-660 silver)
RHG-819
(CT-S11 black)
RHG-820
{CT-S11 silver)
2 RHA-274 Pad A
3 RHA-275 Pad B
4 RRB-255 (CT -660) Operating instructions
RRB-256 (CT-S11) (English)
5 RDE-010 Connection cord
CT-660,CT-SI1
11

CT-660,CT-S!11
7. P.C.BOARDS CONNECTION DIAGRAM
Q104 Qi05
MAIN
UNIT
Qt06
Q201
Q206
Q101
Q205
Q204
A Q301 Q203 Qi03 Q107 Q202 Q207 Q102 Q305 Q304 Q302 Q303 Q307 Q306
v2o1 viol VIO3 v202 v102
ed
L CH JO3
REC/ PB 1
HEAD
RPB-1i22 3
R CH
B INDICATOR UNIT
a4oi
D401~804, 411,412
pot-aita
esas
SEL42148
o
i
i
3101 ,102, 201,
VR UNIT
= 1 2 3

Q104 Q105
MAIN
UNIT
Q106
Q2019206
=
qi0t
Q205
Q204
Q301_Q203
Q103
a1o7
202
Q207
102
Q305
Q304
302
Q303
Q307
Q306
v2o1 viol VIO3 v202 vio2
MOTOR
RXM ~ 130
S2: FF/REW
RSN -035
POWER SWITCH UNIT
AC POWER CORD
RDG - 048
AC 120V
60Hz
S60! POWER
gasmrneh
Ti RTT-437
' ERASE HEAD
2 RPB - 085
_ Se
=

CT-660,CT-S!1
External Appearance of Transistors and ICs
9. EXPLODED VIEW
HA12045
2SC1740S
NOTES:
2SA933S
e
Parts
without
part number
cannot be
supplied.
e
The
A\
mark
found
on
some
component
parts
indicates
the
importance
of
the
Type
No
safety
factor
of
the
part.
Therefore,
when
replacing,
be
sure
to
use
parts
of
identical
Lot
No
designation.
hee
e
For
your
Parts
Stock
Control,
the
fast
moving
items
are
indicated
with
the
marks
kk
and
x.
xx
GENERALLY
MOVES
FASTER
THAN
kx.
E
This
classification
shall
be
adjusted
by
each
distributor
because
it
depends
on
model
number, temperature,
humidity, etc.
M5218L
2SC2240
2SC1815
Type No
AZ
2S8D1406
Mark
Pee
ik
18
No.
aRhWN =
19
20
21
22
23
24
25
Part No.
REB-468
REC-436
RBL-137
RBL-123
RBL-124
RBL-125
RBK-177
RNH-417
RTT-437
RDG-048
REC-395
RAW-211
RAH-711 (Black)
RAH-710 (Silver)
RAH-630 (Selver)
RAH-707 (Black)
RAH-637
Description
Counter belt
Door damper
Eject spring
REC Joint
Grounding spring
(not used black color models)
Door spring
Hold spring
Knob spring
Power transformer (120V)
AC Power cord
Strain relief
Tape counter
Front panel
Jack label
Display panel
(CT-660 black without D type)
RAH-638
(CT-660 silver)
RAH-650 (CT-S11, CT-660 [BK]/D)
RAH-639
RAH-665
Meter panel
Door panel
(CT-660 black without D type)
RAH-666
(CT-660 silver)
RAH-667 (CT-S11, CT-660 [BK]/D)
RNM-060
(CT-660 black)
RNM-061
(CT-660 silver)
RNM-062
(CT-S11 black)
RNM-063
(CT-S11 silver)
RAC-577
RAC-597
RAC-598
RAC-596
Door
Knob
(DOLBY NR,
TAPE SELECTOR)
Knob (REC LEVEL)
Knob (POWER)
Knob (EJECT)
Mark
No.
26
27
28
29
30
31
32
33
34
37
38
39
40
a1
42
43
44
45
46
51
52
53
54
55
56
57
59
60
61
65
66
67
Part No.
RAC-525 (Black)
RAC-523 (Silver)
RAC-526 (Black)
RAC-524 (Silver)
RAC-529 (Black)
RAC-527 (Silver)
RAC-530 (Black)
RAC-528 (Silver)
RAC-532 (Black)
RAC-531 (Silver)
RAC-534 (Black)
RAC-533 (Silver)
REB-513
RNA-730 (Black)
RNA-731 (Silver)
RNT-059
BBZ30PO80FZK
BBZ30PO60FMC
PMA30PO60FMC
YE25FUC
ARZ26PO60FMC
RBA-090
RBF-073
RBH-909
WC30FMC
Description
Knob (PLAY)
Knob (PAUSE)
Knob (REC)
Knob (REW)
Knob (FF)
Knob (STOP)
Skid
Bonnet case
Panel stay
Screw 3 x 8
Screw 3 x 6
Screw 3x6
Washer E-type
Screw 2.6 x 6
Screw 3 x 10
Washer
Pause button spring
Washer
Tape transport unit
Chassis
Rear panel
Cushion
LED holder
Knob shaft
Main unit
Power switch unit
Indicator unit
VR Unit
Remain display paper
Leg assembly
Cushion

1
2 3
4
5
CT-660,CT-S11
8.
SCHEMATIC
DIAGRAM
NOTE:
The indicated semiconductors are representative ones
only. Other alternative semiconductors may be used and
are listed in the parts list.
MAIN UNIT
Q101,102.201,
202
Q301
-HAI2045
Q306,307
2S8C1815
D301~
304
0305,
309
$304
RSG-I75
L102,202
RTF-182
Vi01,102,201,202
vaTB6VS223
|
INDICATER
UNIT
2sc2240 Q3020 0 M5218L Q305 2SA933S 1SR35-100A 182473 $101,201 RKN-C87 103,203 RTF-129 V103, 203 VRTB6VSI54 im 2 i —~7
'
Q103
~107,203~207
D306,
307
0308
RDS5.1EB2
$30!
RSH-O78
L301
RTD-032
4
Q4oi
IR2E27A
'
2S8C1740S Q303,304 2801406 - eae or Nees or MTZ5.1B eee see ners Ltoz [ 0401~ 404,411,412 SEL4914A
F : es
a Cee Se j cist D405~410, 413 SEL4214$
7 4
' BAQETOR 20) ate DOLBY NR PROCESSOR IC i arr
PLAYBACK EQ AMP. —— '
|
Q301
(2/2)
T
'
LINE '
INPUT
(L)
S301:
REC/PB
SELECTOR
Q108:
203
ELAT.AMP:
cio4 RIOG R3i2
03 | 3378 + [8.5] 22k He
ry iy $304: DOLBY
x 105 R107 :
P
Trak
#
clos
F5ex
cos
: ‘
REC
/PE
ViO1,
201
:
Eas
a
é
eis
R3I7
si
Sean
RI33
15k
|
/
:
HEAD PB LEVEL ADJ. 270k 0.033 Kus 62k tape gee REC MUTING 133,
fate
ee]
RPB-122
;
OFF
GATE
RBA
Cr
(8)
S
Rize 28 i es
\
Azk
430
0.0068
1/50
05
401 (1/2)
ens ay R143 Riga | a
$301-1! 0018 by oor T hides 75k 30k \ 1
acu? bs ci23} Vl02 202: AW WM
+47
+[
+
HO
2
REC
LEVEL
ADu.
aA
RI30
a8
150 ci20 ci2t BOp| ci26 eo 4705
ja27 as2 @ 10/6 " t
+ 750 750, ios We 4-4 aioe
Tce 316 (> cies ci29 Ris oF
1/50 Rh 100/16 ea XK) Bae 'k aooss 100 my) ' ' thea
ee | 120k RI3I 33/16
R127
ome
270
405
05
£408
10k $303-1 (2) (2)
$101
vo
p3t0
201
ye
en
ie
Q40!
LEVEL
METER
DRIVER
S047
LINE mic O is 1
ee ee ee ae
= METAL
-_—_— H LINE
1 C122 Orc3i9 $303: OUTPUT (L) r
B
VR
UNIT
1/50
O
+1
4.7/50
aos
TAPE
SELECTOR|
2.2k
Ria!
o
vR5OrREC LEVEL Pore SV” 22k
Rev-1ig! $302-1 $302-2 ey Ok R146
Loch
Soe
be
VASOI)
20k-A
1
|
HIGH
NORM|NORM
HIGH
t
HIGH
NORM
10%
1
c208 VRSOI-2 20k-A Q205 $302-3 — ’
Reh Q105, 205 Sy
REC EQ SELECTOR ey, Me R246
DOL. R (NORM — OFF) LINE
a R239 R241 J OUTPUT (R)
c2e2 ©
4 8303-2 1
+
o
R240
j
:
2s
Eee
eee
J
d
C227
U1C2\4
ee
R231
9707
R242
+ R226 R232 4? 3 wt
)
a
R228
a
_—_-
R22
v202
u
i
‘
Omen} i) en ee oe @ Learns Hp c226 nave
L 1 1 $301-9 4{ — Hrceie Ta c2i9) eas + R230 R243
$301-12 sd ' atc27' WY " Jos
° ? ca2a
SOT ee czz0_| c22i Ba ae 233
R222 pid R225 x2
ieee --5 Bc2is + m, T R244 1 ‘
nec Are Rel tzor 4 | c2i6. grees Sino
PB- R224 +
RPB-122
SR217
R220
c2is
fo
(2/2)
YI
c230
g
+4
R238
Q301(2/2) i}
DOLBY
NR
J
oO R316 PROCESSOR IC
INPUT(R) 270 D309
a7ew) tie
1 ———___—_ ----- 7
ak aa i oY i c231
VIO3 1SOk-8. VIO3, 203 : pe i202 7 1. RESISTORS:
[_} Ove 108 REC BIAS ADJ. ASOD MUTING CONTR, Indicated in 2, %W, YeW.+5% tolerance unless otherwise noted k :k®,
‘ 7500, Q306, 307 [~ Q303,304 es M: MQ, (F) : 21%, (G) : £2%, {K) :+10% (M); +20% tolerance
|
v203
150k-B
BIAS
OSCILATOR
VOLTAGE
REGULATOR
2.
CAPACITORS:
:
=
@
ROWER
SWITCH
UNIT
7
-
R304
Y
9505
Indicated
in
capacity
(uF)/voltage
{V)
unless
otherwise
noted
p
:
| ees $301-2 soi 22k Indication without voltage is 50V except electrolytic capacitor.
soe} ‘schoo 6 a ee PB CREE REC” Fe
“©
5
7
o
Fs
R308
i
3,
VOLTAGE
a C313 = iy DC voltage {V) at no input signal
tar iT Leet «pg =
o O- '
ERASE: 2 560 H 4, OTHERS:
Pia es a HEAD ve) (2) $601: POWER y pal 307 + “=> : Signal route.
RPB-08S
re
7
RSA-063
10/16
Ht
c305
@
:
Adjusting
point.
ena
; at 1990 ee 2 100/16 The /}\ mark found on some component parts indicates the im-
-
i
.
portance
of
the
safety
factor
of
the
part.
Therefore,
when
replacing,
* “ end } be sure to use parts of identical designation.
%& marked capacitors and resistors have parts numbers.
uss ate Freo| A k AC POWER CORD Par.
M 12.0 ms] A | 7% mags Y a Li agree a308 This is the basic schematic diagram, but the actual circuit may vary
1 D306 Vew Ey aaa oT due to improvements in design.
$303-3
741
6306|
'
rec
|
i2v
|
ov
'
0308 '
METAL
__CrOz
+|
e308
apes
PLay|
t2v
|
ov
i dood 7 st0P | 10.8V fiav SWITCHES
na
_—_—_-—
-
|
[TAPE
TRANSPORT
UNIT
|
1 HIGH NORM ae St: PLAY PLAY — STOP
o
F2
'
$2:
FF/REW
FF/REW
—
OFF
$302-4 a
os y04 Jos
- -———_ - — _ - 6 Le . ). 5). 05
:
—
-
-—_—_——
+
eS
.
LL
..
_.
Lt
O--—®
$101,201
:
INPUT
SELECTOR
MIC
—
LINE.
NOTE : $301 : REC/ PLAYBACK SELECTOR REC — PLAYBACK
; - 02 : TAPE SELECTOR — HIGH
layback signal route be 83 —£ SELECTOI “NORMAL:
( Lech) $303 : TAPE SELECTOR CrO2 — METAL
H
—
—
——
axwi3a
St:
PLAY
S2:
FF/REW
$304:
DOLBYNR
ON-
OFF
Recording signal route = paki ogs RSN-035 POWER SWITCH UNIT
i. | $601 : POWER ON — OFF
(Rch)
The underlined indicates the switch position.
1
2
3
4
5
6
16

CT-660,CT-S11
Tape Transport Unit
C
83
D a oe

CT-660,CT-S11

NOTE:
CT-660,CT-S11
e Parts without part number cannot be supplied.
e The /\ 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.
e For your Parts Stock Control, the fast moving items are indicated with the marks
kk and *.
kk GENERALLY MOVES FASTER THAN *.
This classification shall be adjusted by each distributor because it depends on model
number, temperature, humidity, etc.
Parts List of Tape Transport Unit
Mark No. Part No.
1 RBK-166
2 RNM-003
3 RBL-106
4 RBL-103
5 RXC-065
6 RBF-030
ik 7 RXB-495
8 RBH-890
kn 9 REB-530
wk 8610 REB-531
kk 611» =~REB-529
wk = 12)-«~RXC-064
13. RBL-132
wk =614 ~=RNL-988
15 RBL-105
16 RNL-984
17. RXC-067
18 RXC-068
19 RXC-080
20 RNK-998
21. RBL-118
22 RBL-108
23. RNM-006
24 RBL-152
25 RBH-723
26 RBK-192
27 REF-026
28 RNM-078
29 RNM-007
30 RNM-008
31. RNM-009
32 RNM-010
33 RBL-119
34 RBL-155
35 RBL-131
36 RNM-011
37 RBH-880
38 RNM-012
39 RNM-013
40 RBL-110
41 RNM-014
42 RBL-120
43 RNK-998
44 RED-194
45 RNL-318
Description
Half set spring
Eject lever
Return spring
Stopper return spring
Flywheel assembly
Oil stopper washer
Pinch arm assembly
Pinch pressure spring
Drive belt A
Drive belt B
Capstan belt
TU reel base assembly
Hub spring A
Supply reel base
Hub spring B
Hub
Drive arm assembly
Drive pulley assembly
Gear arm assembly
Idler gear
HB return spring
Arm return spring
Sub-head base
HB drive spring
Head adjust spring
HB hold spring
Steel ball
Cam gear
Action lever
Gear lever A
Gear lever B
Gear lever C
Gear lever spring A
Gear lever spring B
Trigger spring
Pause lever
Pause lever spring
FF action plate
REW action plate
Action plate spring
Brake plate
Brake spring
Idler gear
Detector felt
Detector disk
Mark No. Part No. Description
46 RBH-885 Detector spring
47 RNM-015 Detector lever
48 RNL-322 Cam gear
49 RNL-275 Link
50 RBH-886 Link return spring
51 RNM-016 Stop fever
52 RNM-017 Operation button
53. RNM-018 Pause button
54 RNM-019 Lock plate
55 RBL-111 Lock plate spring
56 RNM-020 Joint L
57 RNM-021 Joint R
58 RNL-334 Ratchet holder
59 RBH-888 Ratchet spring
60 RBH-870 Ratchet pin
61 RBH-909 Pause button spring
62 RBH-889 Button return spring
63 RNL-831 Cam gear R
64 RNM-022 Gear lever R
65 RBL-112 Trigger spring R
66 RBL-113 REC action spring
67 RNM-023 REC joint arm
68 RNM-024 REC detector arm
69 RBL-114 Detector arm spring
70 RNM-025 REC button
71. RNL-285 HB lock lever
72> RBL-117 Lock lever spring L
73 RBH-908 Lock lever spring R
74 RNM-026 Motor pulley
75 WA026D047D025 Washer
76 RBF-083 Washer
77 WA021D040D025 Washer
78 RBF-071 Washer
79 RBF-076 Washer
80 YS20FBT Washer CS-type
kk ©6881) =RXM-130 Motor
wk =682 =~RPB-122 REC/PB head
* 83 RPB-085 Erase head
wk =§=684)—- RSN-034 Lever switch ($1)
kk §=685)— RSN-035 Spring switch (S2)
91 PMZ20P120FMC Screw 2x 12
92 iMZ20Y120FMC Screw 2x 12
93 BMZ26PO030FMC Screw 2.6 x 3
94 BBZ26PO80FZK Screw 2.6 x 8
95 BBZ20PO80FMC Screw 2x 8
96 BBZ26P100FMC Screw 2.6 x 10
23

CT-660,CT-S1l1
Mark No. Part No. Description
121 Chassis
122 Thrust receptacie
123 Flywheel receptacle
124 Eject stopper
125 Collar A
126 Collar B
127 Metal holder assembly
128 Head base
129 Plate
130 REC action lever
131 REC action plate
132 Binder
133 Connector assembly 3-p
134 Connector assembly 2-p
24