Read Sharp XL-S10H (serv.man11) Service Manual online
XL-S10H
2 – 1
Audio
XL-S10H
Service Manual
XS10H
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
Signal generator: 400 Hz, 30%, AM modulated
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
• FM Detection
Signal generator: 10.7 MHz FM sweep generator
• FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
3. CD SECTION
•
Adjustment
Since this CD system incorporates the following automatic adjust-
ment functions, readjustment is not needed when replacing the
pickup. Therefore, different PWBs and pickups can be combined
freely.
ment functions, readjustment is not needed when replacing the
pickup. Therefore, different PWBs and pickups can be combined
freely.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
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
Output: TP-VT(IC301 28Pin)
*3. Input: Antenna
Output:IC301 23Pin
Frequency
Display
Check
Point
Instrument
Connection
87.5 MHz
87.5 MHz
1.5V ± 1.0V
TP-VT
108 MHz
108 MHz
5.0V ± 1.0V
TP-VT
TAPE MECHANISM
VARIABLE RESISTOR
IN MOTOR
IN MOTOR
Frequency
Display
Adjusting
Parts
Instrument
Connection
98.00 MHz
(30 dB
(30 dB
µV)
98.00 MHz
Input: Antenna
Output: Speaker Terminal
Output: Speaker Terminal
Test
Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
FM IF
10.7 MHz
98.00 MHz
Input: Pin 36 of
IC301
Output: Pin 23
of IC301
IC301
Output: Pin 23
of IC301
Test
Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
FM Band
Coverage
Coverage
—
87.50 MHz
(fL): L307
1.5 ± 0.1 V
1.5 ± 0.1 V
*1
FM RF
98.00 MHz
(10 ~ 20dB)
(10 ~ 20dB)
98.00 MHz
L304
*1
*1. Input: Antenna
Output: 23 Pin of IC301
Figure 2 ADJUSTMENT POINTS
CNP301
L306
IC301
L304
FM RF
L302
L307
L305
MAIN PWB-A1
AM IF
AM ANT.
FM OSC.
FM BAND
COVERAGE fL
COVERAGE fL
AM BAND
COVERAGE fL
COVERAGE fL
TP-VT=28Pin
AM
Tracking
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