Read Sharp CD-BA3000 (serv.man3) Service Manual online
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CD-BA3000H
TAPE MECHANISM
Tape
Motor
Motor
Variable Resistor in motor
(B1) x2
ø2.6 x6mm
ø2.6 x6mm
Shaft
(B2) x1
(B2) x1
Stop Washer
(B3) x1
(B3) x1
Gear
(B4) x1
(B4) x1
CD Mechanism
Pickup
(A1)x2
(A1)x1
Loading Motor
CD Player
Chassis
Chassis
(A1)x2
Pulley
Drive Belt
(A2) x1
(A2) x1
Loading
Motor
Motor
How to remove the pickup (See Fig. 11-2)
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.
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.
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 11-2
CD MECHANISM SECTION
Perform steps 1, 2, 3, 12 and 15 of the disassembly method
to remove the CD mechanism.
to remove the CD mechanism.
How to remove the loading motor
(See Fig. 11-1)
(See Fig. 11-1)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
2. Remove the drive belt (A2) x 1pc.
2. Remove the drive belt (A2) x 1pc.
Figure 11-1
ADJUSTMENT
MECHANISM SECTION
•
Driving Force Check
Torque Meter
Specified Value
Play: TW-2111
Tape 1: Over 80 g
Tape 2: 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
±
30 Hz
Speaker
speed
Resistor in
terminal
motor.
(Load
(MM1)
resistance:
6 ohms)
6 ohms)
•
Tape Speed
Figure 11-3
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