Pioneer CTS-670-D Service manual

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STEREO CASSETTE DECK

CT-S670D

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

ORDER NO.

RRV1955

Type

Model

Power Requirement

CT-S670D

HYXJ AC220–230V

CONTENTS

1. SAFETY INFORMATION....................................2

2. EXPLODED VIEWS AND PARTS LIST .............3

3. SCHEMATIC DIAGRAM................................... 10

4. PCB CONNECTION DIAGRAM .......................20

5. PCB PARTS LIST.............................................27

6. ADJUSTMENT.................................................. 30

Remarks

7. GENERAL INFORMATION .............................. 33

7.1 PARTS .......................................................33

7.1.1 IC ......................................................33

7.1.2 DISPLAY ..........................................35

7.2 DIAGNOSIS................................................36

7.2.1 DISASSEMBLY ................................36

7.2.2 TEST MODE.....................................36

7.3 BLOCK DIAGRAM...................................... 39

8. PANEL FACILITIES AND SPECIFICATIONS

.......................................................40

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V . Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923

PIONEER ELECTRONIC CORPORATION 1998

T–DZR APR. 1998 Printed in Japan

CT-S670D

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 MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les
pièces de remplacement doivent avoir la même 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 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.

Reading should
not be above

0.5 mA

Earth ground

Device
under
test

Also test with plug
reversed
(Using AC adapter
plug as required)

Leakage

current

tester

Test all exposed
metal surfaces

AC Leakage Test

ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO­TENTIAL SHOCK HAZARD AND MUST BE COR­RECTED 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 characteristics are identified in
this Service Manual.
Electrical components having such features are
identified by marking with a
on the parts list in this Service Manual.
The use of a substitute replacement component which
does 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.

on the schematics and

2

2. EXPLODED VIEWS AND PARTS LIST

NOTES : Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.

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.
Screw adjacent to mark on the product are used for disassembly.

2.1 PACKING

8

CT-S670D

6

1

5

7

4

2

PACKING PARTS LIST

Mark No. Description Part No.

1 Pad (L) RHA1213
2 Pad (R) RHA1212
3 Packing Case RHG1871
4 Sheet (750 × 600 × 0.5) Z23-007

5 CD • DECK SYNCHRO Control RDE1044

Code

6 Connection Code with Pin Plugs RDE1036

(Audio Cord: L= 1.0 m)

7 Operating Instructions RRE1161

(English/French/German/Italian/
Dutch/Swedish/Spanish/

3

NSP 8 Warranty Card ARY7009

Portuguese)

3

CT-S670D

2.2 EXTERIOR

15

20

20

20

5

3

20

19

19

27

23

21

26

12

A

22

20

21

6

10

4

13

2

21

21

22

24

9

To Mechanism
Unit

21

21

1

28

9

19

8

7

Refer to " 2.3 FRONT PANEL SECTION".

29

11
19

16

29

11

19

A

4

EXTERIOR PARTS LIST

Mark No. Description Part No.

CT-S670D

NSP 2 TRN 2 UNIT RWZ4281

NSP 7 Main Chassis RNB1132

NSP 9 PCB Spacer PNY–404
NSP 10 FL Spacer PEB1033

NSP 12 TRANS 1 PCB RNZ3294
NSP 13 PCB Holder AEC–703

NSP 23 Binder ZCA–T18S
NSP 24 Spacer REC1319
NSP 25 …………………

1 MAIN UNIT RWZ4279

3 Strain Relief CM–22B
4 Fuse (FU801: T1.25A) AEK1055
5 AC Power Cord PDG1058

6 Power Transformer RTT1345

(AC220–230V)

8 Rear Panel RNA2199

11 Insulator PNW2766

14 …………………
15 Bonnet REA1276

16 Disc Guard REC1305
17 …………………
18 …………………
19 Screw BBZ30P080FCC
20 Screw BBZ30P080FZK

21 Screw BBZ30P060FCC
22 Screw IBZ30P150FCC

NSP 26 PWSW UNIT RWZ4280

27 Power Button RAC2193

NSP 28 FL Spacer PEB1137

29 Screw BBT30P080FCC

5

CT-S670D

2.3 FRONT PANEL SECTION

Cut

33

No. 33 Cut Part

21

26

Not used

33

24

15

39

A

5

1

3

44

19 (1/3)

7

18

43

32

11

Refer to
" 2.4 MECHANISM UNIT ".

38

45

37

31

17

45

13

A

4

Froil PN397

6

8

31

19 (3/3)

10

16

Froil PN397

2

44

25

12

42

27

42

35

29

34

9

22

41

24

30

31

14

19 (1/3)

No. 19 Cut Part

Cut

19 (2/3)

19 (2/3)

Cut

20

19 (3/3)

23 (1/2)

Cut

23 (2/2)

28

23(2/2)

23(1/2)

No. 23 Cut Part

6

FRONT PANEL SECTION PARTS LIST

Mark No. Description Part No.

1 FL UNIT RWX1146
2 OPSW UNIT RWX1142
3 FFC 33P (60V) RDD1400
4 Mechanism Unit RYM1271
5 DC Motor/0.75W PXM1010

6 Rubber Belt PEB1127
7 Motor Pulley PNW1634
8 Pulley Gear RNK1517
9 Spring RBK1004

10 Arm Gear RNK2304

11 SW Lever RNK1897
12 Joint Arm RNK2243
13 Loading Base Assy 2 RXA1750
14 Panel Stay RNT1247

NSP 15 POCM UNIT RWZ4282

CT-S670D

16 Screw IPZ20P080FMC
17 Screw BMZ26P040FMC
18 Spring RBH1008
19 Function Button B RAC2191
20 Play Button B RAC2204

21 FL Lens RAH2846
22 Front Panel RAH2848
23 Door Pocket RAH2843
24 Screw BBT30P080FCC
25 Door Lens RAH2782

26 Name Plate AAM7004
27 Indicating Panel REE–113
28 Door Plate RAH2850
29 Stabilizer B REB1085
30 Digi Lens RAC2200

31 Screw BBZ30P060FCC
32 Eject Collar RLA1303
33 Slide Knob RAC2203
34 Stabilizer Panel RAH1483
35 Manual Button RAC2195

36 …………………
37 Connector Assy 3P RKP1673
38 Connector Assy 2P RKP1681
39 Screw BBZ26P060FMC
40 …………………

NSP 41 LED UNIT RWX1143

42 VOL Knob RAC2197
43 Screw BBZ26P100FMC
44 Screw BBZ30P080FZK
45 Screw BBZ30P100FMC

7

CT-S670D

2.4 MECHANISM UNIT SECTION

7

26

28

10

42

45

23

15

16

31

15

16

19

30

36

19

38

14

17

41

11

40

14

6

2

22

32

29

24

5

8

1

13

44

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.

9

5

9

12

21

27

33

20

4

39

20

37

34

43

3

35

8

MECHANISM UNIT SECTION PARTS LIST

Mark No. Description Part No.

1 FIXED CORE RLA1130
2 PLUNGER RLA1132
3 HEAD (R/P) RPB1047
4 HEAD (E) RPB1060
5 PUSH SW RSG1018

6 MTR REEL BLK RXM1057
7 MTR MAIN BLK RXM1058
8 SOLENOID BLK RXP1010
9 PHOTO-TRANSISTOR SPI33534FG

10 MAIN BELT REB1163

11 PINCH ROLLER ASSY RXA1183
12 FLYWHEEL ASSY RXA1772
13 WASHER WA26D045D025
14 SCREW 2.6 × 6.4 ZN RBA1076
15 WASHER RBF–057

16 REEL BASE BLK RXA1184
17 IDLER BLK RXA1248
18 …………………
19 WASHER 2.1 × 0.25T RBF1038
20 AZIMUTH SPRING RBH1076

CT-S670D

21 HAED BASE SPRING RBL1003
22 SLIDE SPRING RBH1239
23 PLAY ARM RNK1525
24 CAM GEAR (3R) RNK1672
25 …………………

NSP 26 SPACER REC1319

27 HEAD BASE RNE1390
28 SPRING CASSETTE RBK1048
29 CHASSIS BASE BLK RXA1557
30 DETECTOR LEVER (REC) RNK1527

31 METAL DETECTOR LEVER (L) RNK1529
32 DETECTOR LEVER (P) RNK1543
33 HEAD SPACER RNK2106
34 SCREW PMZ20P080FMC
35 PLATE HD BLK RXA1488

36 SCREW PMA26P050FMC
37 F LOOK SCREW M2 × 10 RBH1031
38 SCREW RBA1101
39 SPACER RLA1275
40 WASHER WA26D047D050

41 WASHER YE15FUC
42 HOLDER CUSHION (L) RED1027
43 F LOOK SCREW 2 × 8 RBA1102
44 SCREW TT2 × 15 RBA1068
45 PCB CONTROL BLK RXA1771

9

1

234

CT-S670D

3. SCHEMATIC DIAGRAM

3.1 OVERALL SCHEMATIC DIAGRAM

A

Note: When ordering service parts, be sure to refer to "EXPLODED

VIEWS and PARTS LIST" or "PCB PARTS LIST".

CN702 (3/4)

AKB7015

CN702 (4/4)

AKB7015

MECHA UNIT

(RYM1271)

B3B-PH-K-S

P.B
HEAD

B

REC
HEAD

ERASE
HEAD

CN81

RECINH

HARF

B3B-PH-K-S

D20PYY0710G

POCM UNIT

G

(RWZ4282)

(

A

D20PWY0510G

A

1/4 to A 4/4

)

LED UNIT

F

(RWX1143)

PG02MR-F30

173981-2

MAIN UNIT

CrO2

(RWZ4279)

METAL

CN82

C

R.M

C.M

D

D20PYY1010G

FL UNIT

E

(RWX1146)

10

1234

5

67

8

CT-S670D

B

OPSW UNIT
(RWX1142)

D20PWY0310G

(

B

1/2, B 2/2

A

)

(

A

1/4 to A 4/4

MAIN UNIT
(RWZ4279)

D20PWY0610G

52147-0610

)

CN702 (1/4)

AKB7015

CN702 (2/4)

AKB7015

JA911

JA912

JA1801

GPIF32R

A

B

DXWW0315E

TRN 2 UNIT

D

(RWZ4281)

FU801

T1.25AL250V

H1, H2:
AKR7001

POWER

TRANSFORMER

RTT1345

C

PWSW UNIT
(RWZ4280)

TRNS 1 PCB

(RNZ3294)

CN1001

JA901

JA601

AC POWER CORD
PDG1058

NEUTRAL

LIVE

AC220–230V
50/60Hz

C

D

D20PWW0615G

11

5

6

7

8

1

234

CT-S670D

3.2 MAIN UNIT (1/4) AND OPSW UNIT (1/2)

A

MECHA UNIT
(1/4)
(RYM1271)

B

P. B HEAD

RPB1047 (1/2)

A

MAIN UNIT (1/4)

1/4

(RWZ4279)

: PLAYBACK SIGNAL ROUTE
: RECORDING SIGNAL ROUTE

PB AMP

PB LEVEL

ADJ.

BIAS

TRAP

DOLBY B/C NR

DOLBY CONT

C

D

Lch

LINE
INPUT

Rch

B

1/2

OPSW UNIT (RWX1142)

NOTE
If the parts are not identified in the diagram the followings are used.

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.

REC HEAD

RPB1047 (2/2)

MECHA UNIT
(2/4)
(RYM1271)

DOLBY B/C NR

12

A 1/4 B 1/2

1234

5

67

8

CT-S670D

TAPE/SOURCE/REC MONI

LINE OUT
BUFFER

A

Lch

LINE
OUT

Rch

B

HP AMP

C

PB/REC

METER AMP

D

A

2/4

REC AMP

5

6

A

2/4

A

3/4

7

8

A 1/4

13