Pioneer CTL-77 Service manual

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DOLBY B NR

ORDER NO.

RRV2199

STEREO CASSETTE DECK

CT-L77

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

Type

ZVYXK DC power supplied from other system component

Model

CT-L77

Power Requirement

÷ This product does not operate normally by itself. Please connect it to the STEREO CD

RECEIVER XC-L77 , for adjustment and operation inspection. If operation confirmation
for the unit by itself can not be avoided, please follow the instructions on page 21.

Remarks

¶ This product is a system(s) component.

Be sure to connect it to the prescribed system component(s), otherwise damage may
result.

Component Model Service manual Remarks

STEREO CD RECEIVER XC-L77 RRV2187
S-L9-LRW — — RRV2176
SPEAKER SYSTEM — S-L9-A-LRW — RRV2176

— — S-L8-LRW RRV2178
STEREO CASSETTE DECK CT-L77 RRV2199 This manual.
MINIDISC RECORDER MJ-L77 RRV2201

CONTENTS

1. SAFETY INFORMATION

2. EXPLODED VIEWS AND PARTS LIST

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM..10

4. PCB CONNECTION DIAGRAM

5. PCB PARTS LIST

6. ADJUSTMENT

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16
19
21

2
3

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 POWER ON SEQUENCE

7.2 PARTS

7.2.1 IC

8. PANEL FACILITIES AND SPECIFICATIONS

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26
26
26
27
27
28

PIONEER 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. 253 Alexandra Road, #04-01, Singapore 159936

c

PIONEER CORPORATION 1999

T–ZZR AUG. 1999 Printed in Japan

CT-L77

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it­yourselfer. 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
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause
cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 – Proposition 65

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 60Hz outlet and turn the AC power switch
on. Any current measured must not exceed 0.5mA.

Reading should
not be above

0.5mA

Earth
ground

Device
under
test

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

Leakage
current
tester

Test all
exposed metal
surfaces

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
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 on the parts list

AC Leakage Test

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.

2.1 PACKING

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.

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

•

6

CT-L77

5

4

1(1/2)

2(1/2)

2(2/2)

7

CT-L77

FRONT

1(2/2)

3

÷ PACKING PARTS LIST

Mark No. Description Part No.

1 Pad Front AHA7260
2 Pad Rear AHA7261
3 Packing Case AHD7767
4 Operating Instructions ARE7217

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

NSP 5 Warranty Card ARY7022

Mark No. Description Part No.

6 Polyethylene Bag Z21-038

(0.03 × 230 × 340)

7 Mirror Mat Sheet Z23-007

(750x600x0.5)

3

CT-L77

2.2 EXTERIOR

18

28

26

27

11

30-2

17

2

10

13

25

19

30-1

16

23

Refer to "2.3 and 2.4
DECK MECHANISM
UNIT"

20

21

22

3

11

22

A

C

31

9

24

B

7

4

24

24

B

22

22

1

24

A

29

16

27

C

23

22

12

5

14

8

6

6

15

4

÷ EXTERIOR PARTS LIST

Mark No. Description Part No.

1 MAIN UNIT AWU7391
2 KEY L UNIT AWU7392
3 KEY R UNIT AWU7393
4 Connection Cable ADE7043
5 Deck Mechanism Unit AXA7075

6 Foot AEB7090

7 Rear Panel ANC7827
NSP 8 Bottom Plate ANF7016
NSP 9 Top Plate ANF7017

10 BLUE IND. UNIT AWU7394

11 Main Line AAP7058
12 Cord Holder RNH-184
13 Tray Panel AAN7195
14 Tray Line AAP7059
15 Bottom Base AMA7014

16 Front Line AAP7066
17 Bonnet AMA7015
18 Button A Assy AWL7044

NSP 19 Tray Seal RRW1162

20 Button B Assy AWL7045

CT-L77

21 Screw BBT30P060FZK
22 Screw BBZ30P060FMC
23 Screw PPZ30P100FMC
24 Screw VPZ30P080FZK
25 CL Lens AAX7704

NSP 26 Button Lens AAX7703
NSP 27 Button AAD7528
NSP 28 Button Cap A AAP7063
NSP 29 Button Cap B AAP7064

30 Top Panel Assy AWL7051
NSP 30-1 Top Panel 1 AMB7645
NSP 30-2 Top Panel 2 AMB7646

31 Parallel Wire D20PYY0625E

5

CT-L77

2.3 DECK MECHANISM UNIT (1/2)

17

4

16

14

6

5

16

3

16

12

13

16

18

8

1

11

9

4

16

10

7

2

2

Refer to "2.4. DECK MECHANISM UNIT (2/2).

6

÷ DECK MECHANISM UNIT (1/2) PARTS LIST

Mark No. Description Part No.

1 Screw 2.6x5 FG114-14
2 Screw 2.6x6 UG12H-15
3 Front BKT FC64K-11
4 Washer 2.0 MJ112-22
5 SP Return FK34N-11

6 Plate Hold BLK F573-258
7 Holder CST BLK F527-078
8 LDG Base FD56R-12
9 Pulley FD56T-11

10 LDG Gear FD56U-11
11 Slider FD57E-11

12 LDG Belt FF19L-12
13 Switch UE15S-14
14 MTR Reel BLK F564-313
15 • • • • •

16 Screw 2.0x4 UG12H-28
17 SP Clamper FK34M-11
18 Switch UE18P-21

CT-L77

7

CT-L77

2.4 DECK MECHANISM UNIT (2/2)

39

40

19

33

15

12

31

10

4

2

32

2

8

23

5

14

31

32

7

9

3

18

34

11

6

16

24

21

43

35

37

36

30

13

20

30

41

42

27

22

26

9

17

28

1

29

1

3

25

38

8

÷ DECK MECHANISM UNIT (2/2) PARTS LIST

Mark No. Description Part No.

1 Screw 2.0x6 KG194-36
2 Reel Feather FD57D-13
3 Screw 2.6x3.5 UG11S-14
4 SP Reel(L) FK32U-12
5 SP Brake FK33B-13

6 SP Arm Play FK33P-11
7 SP Reel(R) FK32V-12
8 Spring Cassette FC65M-11
9 BKT MTR FC64M-12

10 Reel Base FD52W-12
11 Cam Gear FD52Y-23

12 Play Gear (A) FD53K-12
13 Arm Play FD53D-19
14 Plate Slide FC61L-19
15 PCB Control BLK F567-617

16 Chassis base BLK F612-231
17 Head Base FC61K-32
18 Roller Pinch BLK R F514-129
19 Roller Pinch BLK L F514-130
20 Assy F/W FR24S-21

CT-L77

21 Clutch Assy BLK F522-037
22 Clutch Assy BLK F522-048
23 Washer 1.7x0.5 FJ111-13
24 F/R Pulley FD53F-15
25 Solenoid BLK F765-279

26 F/R Belt FF18W-12
27 Belt Main FF19H-11
28 Plate HD BLK F513-824
29 MTR MAIN BLK F525-321
30 Washer 2.6x0.25 FJ111-30

31 Washer 4.1x0.25 FJ111-35
32 Washer 1.75x0.4 UJ16F-11
33 Lever Brake FD53P-17
34 FF Gear(A) FD53L-12
35 Cam SP FK32S-14

36 Screw 2.0x0.3 UJ14A-12
37 Lever F/R FC62G-14
38 Plunger FL41S-21
39 Mecha-Cable WH65N-11
40 Spring HB FK32T-31

41 Screw 2.0x13 UG15V-13
42 Washer 2.0 MJ112-22
43 Spacer UJ15V-13

9