Sharp XL-MP45H Service-Handbuch - Seite 7
Blättern Sie online oder laden Sie pdf Service-Handbuch für Stereo System Sharp XL-MP45H herunter. Sharp XL-MP45H 40 Seiten. Micro component system
Auch für Sharp XL-MP45H: Betriebshandbuch (39 seiten)
Seite drucken
MECHANISM SECTION
• Driving Force Check
Torque Meter
Play: TW-2412
• Torque Check
Torque Meter
Play: TW-2111
Fast forward: TW-2231
Rewind: TW-2231
• Tape Speed
Adjusting
Test Tape
Point
MTT-111
Variable
resistor in
motor.(M901)
TAPE MECHANISM
Figure 7-1 ADJUSTMENT POINT
• Setting the Test Mode
Keeping the REW/REV button and BASS/TREBLE button
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the PRESET
button to use it for adjustment and check of tuner circuit.
Preset No.
FM STEREO
1
87.50 MHz
2
108.00 MHz
3
98.00 MHz
4
90.00 MHz
5
106.00 MHz
11~25
––––
ADJUSTMENT
Specified Value
Over 80 g
Specified Value
30 to 60 g. cm
55 to 140 g.cm
55 to 140 g.cm
Specified
Instrument
Value
Connection
3,000 ±
Headphone
90 Hz
terminal
M901
Tape
Motor
Variable
resistor
in motor
Preset No.
AM
6
531 kHz
7
1,602 kHz
8
990 kHz
9
603 kHz
10
1,404 kHz
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Frequency Frequency
IF
450 kHz
AM Band
—
Coverage
AM
990 kHz
Tracking
*1. Input: Antenna
Output: Speaker terminal
*2. Input: Input is not connected
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Display
Frequency
87.5 MHz
87.5 MHz
108 MHz
108 MHz
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Frequency
Display
98.00 MHz
98.00 MHz
(30 dBµV)
*1. Adjust so that an output signal appears.
MAIN PWB
FM Mute
AM IF
Level
T351
VR351
CF352
IC303
R336
T306
AM Band
Coverage fL
Figure 7-2 ADJUSTMENT POINTS
Preset No.
FM MONO
26
106.00 MHz
27
90.00 MHz
28
98.00 MHz
29
108.00 MHz
30
87.50 MHz
– 7 –
XL-MP45H
Display
Setting/
Instrument
Adjusting
Connection
Parts
1,602 kHz
T351
*1
531 kHz
(fL): T306
*2
1.1 ± 0.1 V
990 kHz
T302
*1
Output: TP301
Check Point
Instrument
Connection
3.4 V ± 1.0 V
TP301
7.8 V ± 1.0 V
TP301
Adjusting
Instrument
Parts
Connection
VR351*1
Input: CNP301
Output: Speaker
Terminal
FE301
IC302
TP301
CNP301
T302
AM
Tracking
SO301
ANTENNA
SOCKET
FM
AM