Adjustment - Sharp CD-BK1600V Service Manual

CD-BK1600V/1800V/190V
CD MECHANISM SECTION
Perform steps 1, 2, 3, 11, 12, 13, 14 and 15 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 remove 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 30 to 80 g. cm
Fast forward: TW-2231 —
Rewind: TW-2231 —
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ADJUSTMENT

Specified Value
Tape 1: Over 80 g
Tape 2: Over 80 g
Specified Value
Tape 1
Tape 2
30 to 80 g.cm
70 to 180 g.cm
70 to 180 g.cm
Disc Tray
(A1)x2
Stop Washer
(B1) x2
(B3) x1
ø2.6 x6mm
Shaft
(B2) x1
• Tape Speed
Test Tape
Normal MTT-111
speed
TAPE MECHANISM
Variable Resistor in motor
– 12 –
T/T Up/Down Motor
(A1)x3
Pulley Motor
Drive Belt
(A2) x1
Figure 12-1
Pickup
CD Mechanism
Gear
(B4) x1
Figure 12-2
Adjusting Specified Instrument
Value
Point Connection
3,000 ±
Variable Speaker
Resistor in 30 Hz terminal
motor. (Load
resistance:
6 ohms)
Motor
Figure 12-3