Adjustment - Sharp CD-C449W Service Manual

MECHANISM SECTION
• Driving Force Check
Torque Meter
Play: TW-2412
• Torque Check
Torque Meter
Play: TW-2111 30 to 60 g. cm
Fast forward: TW-2231 —
Rewind: TW-2231 —
• Tape Speed
Adjusting
Test Tape
Normal MTT-111 VRM01
speed
TAPE MECHANISM PWB
VRM01
FAS
SW
Specified Value
Tape 1: Over 80 g
Tape 2: Over 80 g
Specified Value
Tape 1
Tape 2
30 to 100 g.cm
50 to 100 g.cm
50 to 100 g.cm
Specified Instrument
Point Value Connection
3,000 ± Speaker
30 Hz terminal
(Load
resistance:
8 ohms)
TAPE
SPEED
Figure 13

ADJUSTMENT

TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage
IF
MW Band
Coverage
SW1 Band —
Coverage
SW1 Band —
Coverage
SW2 Band —
Coverage
SW2 Band —
Coverage
MW
Tracking
SW1
Tracking
SW1
Tracking
SW2
Tracking
SW2
Tracking
*1. Input: Antenna, Output: TP302
*2. Input: Anetnna, Output: TP301
– 13 –
CD-C449W/K449W
Frequency Frequency
Display
450 kHz 1,602 kHz T351
— 531 kHz (fL): T306
1.1 ± 0.1 V
3.2 MHz (fL): T307
2.0 ± 0.1V
7.3 MHz (fH): TC305
7.7 ± 0.2 V
9.5 MHz (fL): T308
2.1 ± 0.1V
21.85 MHz (fH): TC304
7.7 ± 0.2V
990 kHz 990 kHz T302
3.9 MHz 3.9 MHz (fL): T303
7.1 MHz 7.1 MHz (fH): TC303
11.65 MHz 11.65 MHz (fL): T304
21.45 MHz 21.45 MHz (fH): TC302
Setting/
Instrument
Adjusting
Connection
Parts
*1
*2
*2
*2
*2
*2
*1
*1
*1
*1
*1