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Model
XL-MP100H (serv.man13)
Pages
80
Size
6.49 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
xl-mp100h-sm13.pdf
Date

Sharp XL-MP100H (serv.man13) Service Manual ▷ View 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
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.
3,000 ± 30 Hz
Speaker Ter-
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
522 kHz
(fL): L306
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: 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
7
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
XL-MP100H
2 – 2
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.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
[2] TEST MODE
Test Mode Key Operation
All test modes can be terminated by turning off the power with ON/STAND-BY key.
• Preset clear test
All tuner preset stations are cleared.
• Preset set test
Stations are set according to destination.
• Display test
When test mode is activated, the entire display lights up. As the “PLAY” button is pressed, half of the display lights up alternately.
• CD test
In step 5, hold down the AUX button on the remote control. The tracking servo is switched on/off.
From step 3, the pick up can be moved with the FF/REW button.
KEY1
KEY2
KEY3
TEST CONTENTS
INDICATION
Memory
Preset Down
Power
Preset clear
Tu CL
Memory
Stop
Power
Preset set
FM P-01
Memory
Play
Power
Display
Memory
Preset up
Power
CD
TEST-1
Memory
REC
Power
Soft reset
CLEAR
Bass/treble
Preset down
Power
Volume
TEST-3
Bass/treble
Play
Power
Timer test
TEST-4
Bass/treble
TAPE-REC
Power
all key
TEST-6
Bass/treble
Stop
Power
Tuner aspm
TEST-7
CH
BAND
FREQUENCY
1
FM STEREO
FM 87.50 MHz
2
FM 108.00 MHz
3
FM 98.00 MHz
4
FM 90.00 MHz
5
FM 106.00 MHz
1
AM
AM 522 kHz
2
AM 1620 kHz
3
AM 990 kHz
4
AM 603 kHz
5
AM
AM 1404 kHz
AM6-30
FM11-30
·
35
36
FM MONO
FM 106.00 MHz
37
FM 90.00 MHz
38
FM 98.00 MHz
39
FM 108.00 MHz
40
FM 87.50 MHz
CH
BAND
FREQUENCY
[cd step 1] Enter test mode. 
←———————
↓ Hold down the “memory” button
[cd step 2] After some steps, the laser turns on.
↓ Hold down the “memory” button
[cd step 3] After some steps, focus search is performed.
↓ Hold down the “memory” button
[cd step 4] After some steps, CLV rotation is performed.
↓ Hold down the “memory” button
[cd step 5] CD playback starts.
↓ Hold down the “stop” button to return to [cd step 1] ––––––––––
XL-MP100H
2 – 3
• Soft reset test
All data in RAM is cleared.
• VOLUME test
Starting from level 23 (default), check all the levels (0 - 23 - MAX).
• Tuner aspm test
106.50 MHz FM stereo is set by default. Hold down the “ASPM” button (on the remote control) to start scanning from 105.00 MHz. The unit
receives stations and stores them as PS (preset stations).
If no station is received, “0MEMORY” appears.
• TIMER test
Start the timer at 1:00. When it reaches 1:05, turn on the power with the AUX function and turn off the power after about 30 seconds.
(In the test mode, fade-in and fade-out are not required.)
• ALL KEY test
In the test mode, hold down all the buttons on the main unit and then press the “POWER” button. “OK” appears.
If only the “ON/STAND-BY” key is pressed, “ERROR” appears.
XL-MP100H
3 – 1
Audio
XL-MP100H
Service Manual
XLMP100H
Market
E
 
CHAPTER 3. 
MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE
MAIN PARTS
1. TAPE MECHANISM SECTION
Perform steps 1 to 5 and 7 of the disassembly method to remove the
tape mechanism. (See page 3-3,3-4)
1.1. How to remove the record / playback and erase heads
(See Fig. 1)
1. Remove the screws (A1) x 2 pcs., to remove the erase head.
2. Remove the screws (A2) x 2 pcs., to remove the record/playback
head.
NOTE: After replacing the heads and performing the azimuth adjust-
ment, be sure to apply screw lock.
1.2. How to remove the pinch roller (See Fig.2)
1. Carefully bend the pinch roller pawl in the direction of the arrow
<A>, and remove the pinch roller (B1) x 1 pc., upwards.
1.3. How to remove the belts (See Fig.3)
1. Remove the main belt (C1) x 1 pc., from the motor pulley.
2. Remove the FF/REW belt (C2) x 1 pc., from the REW/FF roller.
3. Put on the belts in the reverse order of removal.
NOTE: When putting on the belt, ascertain that the belt is not twisted,
and clean it.
1.4. How to remove the motor (See Fig.4)
1. Remove the main belt.
2. Remove the screws (D1) x 2 pcs., to remove the motor bracket.
3. Remove the screws (D2) x 3 pcs., to remove the motor.
NOTE: When mounting the motor, pay attention to the motor mounting
angle.
Figure 1
Figure 2
Figure 3
Figure 4
Erase Head
Record/
Playback Head
(A1)x2
ø2x8mm
(A2)x1
ø2x3mm
(A2)x1
ø2x7mm
<A>
Pinch Roller
(B1)x1
Pinch Roller
Pawl
Main Belt
(C1)x1
FF/REW Belt
(C2)x1
REW/FF
Clutch
Motor
(D1)x1
ø2x4mm
(D2)x3
Special
Screw
Motor
Bracket
Motor
Motor
(D1)x1
ø2x4mm
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