Sony TCS-60-DV Service manual

TCS-60DV

SERVICE MANUAL

Ver 1.0 1999. 03

SPECIFICATIONS

US Model

Canadian Model

AEP Model

E Model

Model Name Using Similar Mechanism TCM-50DV T ape Transport Mechanism T ype MT -50-30

Recording system 4-track 2 channel stereo Tape speed 4.8 cm/s or 2.4 cm/s Frequency range 250 – 8,000 Hz using nomal (TYPE1) cassette

(with REC TIME switch at “NORMAL”) Speaker Approx. 3.6 cm (17/16 in.) dia. ×2 Power output Speakers : 160 mW + 160 mW

(at 10 % harmonic distortion)

Headphones : 6 mW + 6 mW

(at 10 % harmonic distortion)

Input Microphone input jack (minijack) sensitivity

0.2 mV for 3 Ω or lower impedance

microphone Output 2 (headphones) jack (minijack) for

8 – 300 Ω earphone

Variable range of the tape speed

From approx. +25 % to – 15 % (with REC TIME switch at “NOMAL”)

Power requirements 3 V DC batteries AA (R6) ×2/

External DC 3 V power sources

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

Approx. 88.7 × 113.4 × 41.3 mm (31/2 × 41/2 × 111/16 inches), incl.

Mass Approx. 280 g (9.9 oz)

Design and specifications are subject to change without notice

MICROFILM

CASSETTE CORDER

TABLE OF CONTENTS

1. SERVICE NOTE·······························································3

2. GENERAL ·········································································· 4

3. DISASSEMBLY

3-1. Cabinet (rear) Assy, Lid Sub Assy, Cassette··················· 5 3-2. MAIN Board, Mechanism Deck ····································· 5 3-3. Belt·················································································· 6 3-4. Head ················································································ 6 3-5. Motor, DC ······································································· 7 3-6. Precaution For Attaching The MAIN Board··················· 7

4. ADJUSTMENT ································································· 8

5. DIAGRAMS

5-1. Block Diagram ································································ 9 5-2. Schematic Diagram······················································· 11 5-3. Printed Wiring Board –MAIN Section – ······················15 5-4. Printed Wiring Board –LED Section – ·························20 5-5. IC Block Diagrams ······················································· 24 5-6. IC Pin Function Discription ·········································· 26

6. EXPLODED VIEWS

6-1. MAIN Section -1 ··························································27 6-2. MAIN Section -2 ··························································28 6-3. Mechanism Deck Section -1 ········································· 29 6-4. Mechanism Deck Section -2 ········································· 30

7. ELECTRICAL PARTS LIST ······································· 31

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of soldering iron around 270˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

— 2 —

SECTION 1

SERVICE NOTE

The TCS-60DV detects rotation of both the supply and take-up side reels using the PH701 (photo reflector). Because the PH701 is mounted on the Main board, auto stop is activated and reel rotation cannot be detected when the Main board is removed. To check the operation of mechanism deck and voltage without the Main board, follow the procedure as described below.

How to remove the Main board (opening the Main board)

1) Refer to page 5 “3. Disassembly”.

How to enter the fast forward/rewind modes

1) Input the square wave to the TP41. (Refer to the illustration below.)

2) Press the fast forward/rewind keys.

3) Turn on the S301.

How to enter the playback mode

1) Input the square wave to the TP41. (Refer to the illustration below.)

2) Press the playback key.

3) Set the S302 to the PLAY.

4) Turn on the S301.

How to enter the record mode

1) Input the square wave to the TP41. (Refer to the illustration below.)

2) Press the record key.

3) Set the S302 to the REC.

4) Turn on the S301.

Oscillator

PULSE

10Hz 1.6V (4.5dB)

TP1

(Side B) (Side A)(Side A)

TP41

S301

S302

— 3 —

SECTION 2

GENERAL

This section is extracted from instruction manual.

1 2 Headphone jack 2 MIC (PULG IN POWER) jack 3 VOL knob 4 r REC button 5 p STOP button 6 PLAY button 7 SPEED CONTROL knob 8 REW/REVIEW button 9 FF/CUE button 0 DIR c switch !¡ Hand strap

!™ Tape direction indicators !£ SPEAKER (REAR SIDE) !¢ TAPE COUNTER switch !∞ Flat mic !§ PAUSE c switch !¶ REC TIME switch !• BATT/REC indicator !ª VOR switch @º Battery compartment @¡ i indicator @™ DC IN 3V jack

— 4 —

Disassemble the unit in the order as shown below.

SECTION 3

DISASSEMBLY

Set "Cabinet (rear) assy", "lid sub assy, cassette" Main board, Mechanism deck Belt

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

3-1. “CABINET (REAR) ASSY”, “LID SUB ASSY, CASSETTE”

Lid Sub Assy, Cassette

PWB, LED Flexible

Screw, ornamental

Claws

Screw, ornamental

Shaft(A), stopper

Remove the Cabinet (rear) assy

in the direction of the allow

Remove speaker cable (4pcs)

Claws

Head Motor, dc

Two screws(+B1.7 × 9)

3-2. MAIN BOARD, MECHANISM DECK

NOTE: For attaching the Main board,

refer to the next page.

Three screws(IB LOCK)

Two screws(+B1.7 × 9)

Mechanism deck

PC board, Head flexible

— 5 —

PC board, Motor flexible

MAIN board

Two screws(M1.4), Toothed lock

3-3. BELT

Belt(motor)

Belt(flywheel)

Belt(counter)

• How to thread the belt

Belt(flywheel)

Belt(motor)

Belt(counter)

3-4. HEAD

two screws

head, magnetic

(REC/PB/ERASE)

— 6 —

+ 14 hidden pages