Sharp CD-BA3000 Service Manual download pdf (Page 10)

CD-BA3000

– 10 –

How to remove the pickup (See Fig. 10-2)

1. Remove the stop washer (B1) x 1 pc., to remove the gear

(B2).

2. Remove the screws (B3) x 2 pcs., to remove the shaft (B4).

3. Remove the pickup.

Note

After removing the connector for the optical pickup from the

connector wrap the conductive aluminium foil around the front

end of connector so as to protect the optical pickup from

electrostatic damage.

Figure 10-2

CD MECHANISM SECTION

Perform steps 1, 2, 3, 12 and 15 of the disassembly method

to remove the CD mechanism.

How to remove the loading motor

(See Fig. 10-1)

1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.

2. Remove the drive belt (A2) x 1pc.

Figure 10-1

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter Specified Value

Play: TW-2111 Tape 1: Over 80 g

Tape 2: Over 80 g

• Torque Check

Torque Meter

Tape 2

Play: TW-2111 30 to 80 g. cm 30 to 80 g.cm

Fast forward: TW-2231 — 70 to 180 g.cm

Rewind: TW-2231 — 70 to 180 g.cm

Specified Value

Tape 1

Specified

Value

Adjusting

Point

Instrument

Connection

Test Tape

Normal MTT-111 Variable 3,000 ± Speaker

speed Resistor in 30 Hz terminal

motor. (Load

(MM1) resistance:

6 ohms)

• Tape Speed

Figure 10-3

(A1)x2

(A1)x1

Loading Motor

CD Player

Chassis

(A1)x2

Pulley

Drive Belt

(A2) x1

Motor

(B1) x2

ø2.6 x6mm

Shaft

(B2) x1

Stop Washer

(B3) x1

Gear

(B4) x1

CD Mechanism

Pickup

TAPE MECHANISM

Tape

Motor

Variable Resistor in motor

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 59 60

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Sharp CD-BA3000 Service Manual Page 10

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