Adjustment - Sharp CD-BP160W Service Manual

CD-BP160W/180W/1500W/1700W
CD MECHANISM SECTION
Perform steps 1, 2, 3, 11, 12, 13 and 14 of the disassembly
method to remove the CD mechanism.
How to remove the T/T Up/Down motor
(See Fig. 12-1)
1. Bend the hooks (A1) x 5 pcs., to remove the T/T Up/Down
motor.
2. Remove the drive belt (A2) x 1 pc.
How to remove the pickup (See Fig. 12-2)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(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 to protect the optical pickup from
electrostatic damage.
MECHANISM SECTION
• Driving Force Check
Torque Meter
Play: TW-2111
• Torque Check
Torque Meter
Play: TW-2111
Fast forward: TW-2231
Rewind: TW-2231
Specified Value
Tape 1: Over 80 g
Tape 2: Over 80 g
Specified Value
Tape 1
Tape 2
30 to 80 g. cm 30 to 80 g.cm
— 70 to 180 g.cm
— 70 to 180 g.cm
Disc Tray
(B1) x2
ø2.6 x6mm
Shaft
(B2) x1

ADJUSTMENT

• Tape Speed
Normal
speed
– 12 –
T/T Up/Down Motor
(A1)x2
Figure 12-1
Stop Washer
(B3) x1
Gear
(B4) x1
Figure 12-2
Adjusting
Test Tape
Point
MTT-111 Variable
Resistor in
motor.
TAPE MECHANISM
Variable Resistor in motor
Figure 12-3
(A1)x3
Pulley
Motor
Drive Belt
(A2) x1
Pickup
CD Mechanism
Specified Instrument
Value Connection
3,000 ±
Speaker
30 Hz terminal
(Load
resistance:
6 ohms)
Motor