Sharp XL-560 User Manual

XL-560,570/C
– 10 –
MECHANISM SECTION
• Driving Force Check
Torque Meter
Specified Value
Play: TW-2412 Over 80 g
• Torque Check
Torque Meter
Play: TW-2111 30 to 60 g. cm
Fast forward: TW-2231 55 to 140 g.cm
Rewind: TW-2231 55 to 140 g.cm
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
MTT-111 Motor 3,000 ± Headphone
(M901) 90 Hz terminal
ADJUSTMENT
Specified Value
• Tape Speed
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
IF 450 kHz 1,720 kHz T351 *1
AM Band — 530 kHz (fL): T306 *2
Coverage 1.1 ± 0.1 V
AM 990 kHz 990 kHz T302 *1
Tracking
Test Stage
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
Adjusting
Parts
Display
Figure 10-1 ADJUSTMENT POINT
TUNER SECTION
Frequency
• Setting the Test Mode
Keeping the FF/FWD button and MEMORY/SET button
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the JOG DIAL
knob to use it for adjustment and check of tuner circuit.
Preset No. FM STEREO
Preset No.
AM
1 87.5 MHz 6 530 kHz
2 108.0 MHz 7 1,720 kHz
3 98.0 MHz 8 990 kHz
4 90.0 MHz 9 600 kHz
5 106.0 MHz 10 1,400 kHz
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
Check Point Instrument
Connection
Display
Frequency
87.5 MHz 87.5 MHz 2.2 V ± 0.7 V TP301
108 MHz 108 MHz 7.3 V ± 1.0 V TP301
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Input: Antenna, Output: Speaker Terminal
*2. Input: Input is not connected, Output: TP301
98.00 MHz 98.0 MHz VR351*1 Input: SO301
(25 dBµV) Output: Speaker
Terminal
Instrument
Connection
Preset No.
11~25
Preset No.
FM MONO
26 106.0 MHz
27 90.0 MHz
28 98.0 MHz
29 108.0 MHz
30 87.5 MHz
BAND
TAPE MECHANISM
M901
Tape
Motor
Variable
resistor
• FM Detection
Signal generator: 10.7 MHz, FM sweep generator
FM IF 10.7 MHz 98.0 MHz T304(Turn Input: Pin 1 of
the core of IC301
T304 fully Output: TP302
counter-
clockwise.
Test
Stage
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
Figure 10-2 ADJUSTMENT POINTS
IC303
IC302
CF352
R336
T306
VR351
T302
CNP602
T304
L303
IC301
L302
BF301
T351
1
9
MAIN PWB
AM
ANTENNA
SOCKET
FM Mute
Level
AM IF
TP301
CNP301
AM
Tracking
AM Band
Coverage fL
TP302
FM Band
Coverage fL
FM RF
FM IF
FM
ANTENNA
SOCKET
SO301
• FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
FM Band — 87.5 MHz (fL): L303 *1
Coverage 3.4 ± 0.1 V
FM RF 98.00 MHz 98.0 MHz L302 *2
(10~30 dB)
Test Stage
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
*1. Input: Antenna, Output: TP301
*2. Input: Antenna, Output: Speaker Terminal

Sharp XL-560 Specifications

General

Brand	Sharp
Model	XL-560
Category	Stereo System
Language	English