Read Sharp XL-MP100H (serv.man13) Service Manual online
XL-MP100H
2 – 1
Audio
XL-MP100H
Service Manual
XLMP100H
Market
E
CHAPTER 2.
ADJUSTMENTS
[1] ADJUSTMENT
1. MECHANISM SECTION
• Driving Force Check
• Torque Check
• Tape Speed
2. TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Torque Meter
Specified Value
Play: TW-2111
Over 80 g
Torque Meter
Specified Value
Play: TW-2111
30 to 80 g.cm
Fast forward: TW-2231
70 to 180 g.cm
Rewind: TW-2231
70 to 180 g.cm
Test Tape
Adjusting
Point
Specified
Value
Instrument
Connection
MTT-111
Variable
Resistor in
motor.
Resistor in
motor.
3,000 ± 30 Hz
Speaker Ter-
minal (Load
resistance: 6
ohms)
minal (Load
resistance: 6
ohms)
Figure 1
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF
450 kHz
1,602 kHz
L305
*1
AM Band
Coverage
Coverage
—
522 kHz
(fL): L306
1.1 ± 0.1 V
1.1 ± 0.1 V
*2
AM Tracking
990 kHz
990 kHz
L302
*3
*1. Input: IC301 1Pin Output: IC301 23Pin
*2. Input: Input is not connected
*2. Input: Input is not connected
Output: TP301(IC301 28Pin)
*3. Input: Antenna
Output:IC301 23Pin
TAPE MECHANISM
M501
Tape
Motor
Variable
resistor
in motor
L302
J102
J301
FE301
L311
W303
L306
CNP301
CF301
CF304
L305
CF303
W302
X351
IC351
CF302
MAIN PWB
1
2
16
9
10
11
12
13
14
15
11
12
13
14
15
7
6
5
4
3
2
6
5
4
3
2
8
1
FM ANTENNA
AM LOOP ANTENNA
VIDEO/AUX
IN
LEFT
RIGHT
75 OHMS
W302
W303
W301
AM BAND
COVERAGE fL
AM
Tracking
AM IF
C321
23
TP301
IC301
Figure 2 ADJUSTMENT POINTS
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