Sharp PW-E500 Service Manual Page 10

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CD-E500
CD-E55/E44
– 10 –
Test Stage
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
AM IF 450 kHz 1,720 kHz T351 *1
AM Band 530 kHz (fL): T306 *2
Coverage 1.1 ± 0.1 V
AM Tracking 990 kHz 990 kHz (fL): T302 *1
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker Terminal
FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
FM Band 87.50 MHz L303 (fL): *1
Coverage 1.3 V ± 0.1 V
FM RF 98.00 MHz 98.00 MHz L302 *2
(10-30 dB)
Test Stage
Instrument
Connection
Frequency Frequency
Display
Setting/
Adjusting
Point
Figure 10-2 ADJUSTMENT POINTS
FM IF
Signal generator: 10.7 MHz, FM modulated
IF 10.7 MHz 98 MHz T304 *1
(Turn the
core of trans-
former T304
fully counter-
clock wise)
Test Stage
Instrument
Connection
Frequency Frequency
Display
Setting/
Adjusting
Point
*1. Input: Antenna Output: TP301
ADJUSTMENT
MECHANISM SECTION
Driving Force Check
Torque Meter Specified Value
Play: DM-300 Tape 1: Over 80 g
Tape 2: Over 80 g
Torque Check
Torque Meter
Tape 2
Play: DM-300 10 to 20 g.cm 10 to 20 g.cm
Fast forward: DM-300 Over 50 g.cm
Rewind: DM-300 Over 50 g.cm
Specified Value
Tape 1
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
Tape TCC-119 Variable 3,000 ± 30 Hz Speaker
speed Resistor in Terminal
motor. (Load
resistance:
8 ohms)
Tape Speed
Figure 10-1
Tape
Motor
Variable Resistor in Motor
TAPE MECHANISM
FM IF
FM RF
VR351
FM MUTE
Level
T351
AM IF
T302
T306
T304
IC301
IC302
L303
L302
CNP301
FM BAND
COVERAGE fL
AM BAND
COVERAGE fL
AM TRACKING
fL
MAIN PWB
1
1
11 12
22
20
R381
R356
R357
TP301
TP302
Adjusting
Parts
Display
Frequency
• FM Mute Level (FM ST MODE)
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
98.00 MHz 98.00 MHz VR351*1 Input:CNP301
(26 dBµV) Output: Speaker
Terminal
Instrument
Connection
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