Sony TCSP-55 Service manual

TC-SP55

SERVICE MANUAL

TC-SP55 is the deck section in CMT-SP55TC, and TC-SP55 is sold in the option as a tape deck of CMT-SP55MD.

Model Name Using Similar Mechanism NEW T ape Transport Mechanism Type CMAL2Z720A

SPECIFICATIONS

AEP Model

UK Model

E Model

Recording system 4-track 2-channel stereo Frequency response (DOLBY NR OFF)

General

Dimensions (w/h/d) incl. projecting parts and controls

Mass Approx. 1.9 kg Supplied accessory System cable (1)

Design and specifications are subject to change without notice.

40 – 14,000 Hz (±3 dB) using Sony TYPE I cassettes 40 – 15,000 Hz (±3 dB), using Sony TYPE II cassettes

Approx. 202 x 101 x 283 mm

STEREO CASSETTE DECK

TABLE OF CONTENTS

1. SERVICING NOTE ·························································· 3

2. GENERAL ·········································································· 5

3. DISASSEMBLY

3-1. Case ···················································································· 6 3-2. Front Panel Assy ································································· 6 3-3. Mechanism Assy ································································· 7 3-4. Main Board ········································································· 7 3-5. Pinch Roller BLK Assy, Belt ·············································· 8

4. TEST MODE······································································ 9

5. MECHANICAL ADJUSTMENTS ····························· 11

6. ELECTRICAL ADJUSTMENTS ······························· 11

7. DIAGRAMS

7-1. Block Diagram ································································· 15 7-2. Schematic Diagram – Main Section – ······························ 16 7-3. Printed Wiring Board – Main Section – ··························· 17 7-4. Schematic Diagram – Panel Section – ····························· 18 7-5. Printed Wiring Board – Panel Section – ··························· 18 7-6. IC Pin Functions ······························································· 19 7-7. IC Block Diagrams ··························································· 20

8. EXPLODED VIEW

8-1. Case and Front Panel ························································ 21

9. ELECTRICAL PARTS LIST ······································· 22

MODEL IDENTIFICATION

— BACK PANEL —

Parts No.

MODEL

AEP, UK, AED models MY, SP models

• Abbreviation AED : North European model MY : Malaysia model SP : Singapore model

PARTS No.

4-229-654-0s 4-229-654-2s

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

SECTION 1

SERVICING NOTE

This unit cannot be repaired by itself. When repairing, connect the whole system except for the speaker.

Cold Reset

• When the AC cord is removed, COLD RESET is done with TC-SP55.

ST Test Mode

Procedure :

1. When the power ON, press the ?/1 button (TA) while pressing the TUNING MODE button (ST) and PLAY MODE buttons (CDP)

together.

2. LCD are all turned on.

3. Press TUNING MODE button (ST) to enter the model destination indecation mode. “SP55 CE2” or “SP55 ASIA2” appears.

4. Every pressing of TUNING MODE button (ST) changes the display in the following order. MC Version t CD Version t ST Version t TC Version t TA Version t TM Version t model destination display.

5. Press DISPLAY button (ST) and the date appears as “ 00615a ” Every pressing of DISPLAY button (ST) changes the display in the Version display and model destination display.

6. Press TUNER/BAND button (ST) to enter the key check mode.

7. In the key check mode, the fluorescent indicator tube displays “Key 0 Vol 0”. Each time a button is pressed, “Key” value increases. However, once a button is pressed, it is no longer taken into account. “Vol” Value increases like “1, 2, 3 ...” if rotating VOLUME knob (TA) in the clockwise direction, or decreases like “0, 9, 8 ...” if rotating in the counterclockwise diretion. (The TC-SP55 is not count.)

8. To exit from this mode, disconnect the power cord.

MC Test Mode

Procedure :

1. When the power ON, press the ?/1 button (TA) while pressing TUNING MODE button (ST) and REPEAT button (CDP) together.

2. Frame of the MD mark and the CD mark flash, and “BASS/TRE FLAT” appears for a moment.

3. When the VOLUME knob (TA) is turned clockwise, “VOLUME MAX” appears for a moment.

4. When the VOLUME knob (TA) is turned counterclockwise, “VOLUME MIN” appears for a moment.

5. Select the function “TAPE” using the FUNCTION knob (TA). Set the test tape AMS-110A or AMS-120.

6. Press DIRECTION button (TC) to enter either “j” (loop) or “h” (two way).

7. Press the CD SYNC REC button (TC) to start the AMS test.

(FWD) REW (Shut off)

(FWD) FF AMS

(FWD) REW AMS

END

8. Number of AMS signals is counted during the AMS test and the message “EDG#” (# means a number) appears. When the test tape either AMS-110A or AMS-120 is used, the AMS signal is detected twice before shut off.

9. When the AMS test ends, either “OK” or “NG” appears.

10.To exit the MC test mode, either press the ?/1 button (TA) or perform the cold reset as described above.

(Shut off)

Aging Mode

• Mode for repeating operations of the CD player and TC deck automatically.

When errors occur:

Aging stops and a message indicating that an error has occurred such as “CD MEC ERR” is displayed. (For details of errors, refer to “Error History Display Mode”.)

When no errors occur:

Aging is repeatedly performed.

Procedure:

1. Load any CD and a tape.

2. Select the function “CD” using the FUNCTION knob (TA).

3. While pressing the TUNING MODE button (ST) and H button (CDP), press the ?/1 button (TA).

4. “AGING” is displayed on the LCD briefly.

5. Operations are performed in the following sequence during aging. Every pressing of DISPLAY button (ST) changes the display in the CD display and TAPE display.

CD : Cassette :

Reading of TOC

Playback of first track (3sec.)

Playback of last track (3sec.)

CD tray open

CD tray close

6. To end aging, execute the cold reset.

REW (Shut off) "TAPE AG-1"

PLAY

REV PLAY

REW

FF search

REW search

OPEN

(20 sec) "TAPE AG-2"

(20 sec) "TAPE AG-3"

(20 sec) "TAPE AG-4"

(20 sec) "TAPE AG-5"

(20 sec) "TAPE AG-6"

(20 sec) "TAPE AG-7"

"TAPE AG-8"

"TAPE AG-9"

Error History Display Mode

Mode for checking the history of errors which have occurred in the CD player. Execute this mode after ending the aging mode.

Procedure:

1. Select the function “CD” using the FUNCTION knob (TA).

2. While pressing the TUNING MODE button (ST) and S button (CDP), press the ?/1 button (TA).

3. “EMC@@EDC**” id displayed. @@: Number of mechanism errors (Last 3 errors) ** : Number of errors (NO DISC ERROR) which occurred after chucking (Last 3 errors)

4. To end, press the ?/1 button (TA) and turn OFF the power.

5. To erase the error history, perform cold reset. (While pressing the TUNING MODE button (ST) and M L button (CDP), press the ?/1 button.)

SECTION 2

1 42 5 6 7 8

GENERAL

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1 CD SYNC REC button 2 CD SYNC REC indicator 3 z REC button 4 z REC indicator 5 h indicator 6 H indicator 7 S indicator 8 A button

9 M L button q; l m button qa s button qs S button qd H button qf h button qg DIRECTION button qh DOLBY NR button

SECTION 3

)

DISASSEMBLY

Set Case Front Panel Assy

Mechanism Assy (Page 7)

Main Board (Page 7)

Note: Follow the disassembly procedure in the numerical order given.

3-1. CASE

1 two screws (case 3 TP2)

Pinch Roller BLK Assy, Belt (Page 8)

4 case

3-2. FRONT PANEL ASSY

1 two screws (case 3 TP2

1 connector (CN702)

5 front panel assy

claws

3 two foot assy's

4 screw (BVTP 3x8)

2 two screws

(BVTP 3x12)

3-3. MECHANISM ASSY

3 mechanism assy

2 two screws

(BVTP 3x10)

2 two screws (BVTP 3x10)

1 connector (CN101)

1 connecto (CN601)

1 connector (CN602)

3-4. MAIN BOARD

2 claw

5 main board

4 three screws

(BVTP 3x8)

1 three screw (BVTP 3x8)

2 claw

3-5. PINCH ROLLER BLK ASSY, BELT

5 claw

1 two screws

6 pinch roller BLK L assy

4 pinch roller BLK R assy

2 mechanism deck

3 claw

1 two screws

7 belt main

8 F/R belt

belt main

F/R belt

+ 16 hidden pages