Read Sharp XL-MP40H (serv.man3) Service Manual online
SERVICE MANUAL
XL-MP40H
No. S2518XLMP40H/
MICRO COMPONENT SYSTEM
XL-MP40H
MODEL
SHARP CORPORATION
CONTENTS
PRECAUTIONS FOR USING LEAD-FREE SOLDER
CHAPTER 1. GENERAL DESCRIPTION
[1] SAFETY PRECAUTION FOR SERVICE
[1] SAFETY PRECAUTION FOR SERVICE
MANUAL ........................................................ 1-1
[2]
IMPORTANT SERVICE NOTES (FOR U.K.
ONLY) ............................................................ 1-1
ONLY) ............................................................ 1-1
[3] SPECIFICATIONS ......................................... 1-2
[4] NAMES
[4] NAMES
OF
PARTS........................................ 1-3
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT ............................................... 2-1
[2] TEST
[1] ADJUSTMENT ............................................... 2-1
[2] TEST
MODE .................................................. 2-2
[3] When the CD does not function ..................... 2-3
CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE
[1] REMOVING AND REINSTALLING THE
MAIN PARTS ................................................. 3-1
[2] DISASSEMBLY .............................................. 3-3
CHAPTER 4. DIAGRAMS
[1] BLOCK
[1] BLOCK
DIAGRAM ......................................... 4-1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT....................5-1
[2] VOLTAGE ......................................................5-2
[1] WAVEFORMS OF CD CIRCUIT....................5-1
[2] VOLTAGE ......................................................5-2
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM ............6-1
[2] TYPES OF TRANSISTOR AND LED ............6-1
[3] WIRING SIDE OF PWB/SCHEMATIC DIA-
LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM ............6-1
[2] TYPES OF TRANSISTOR AND LED ............6-1
[3] WIRING SIDE OF PWB/SCHEMATIC DIA-
GRAM ............................................................6-2
CHAPTER 7. OTHERS
[1] FUNCTION TABLE OF IC .............................7-1
[2] LCD
[1] FUNCTION TABLE OF IC .............................7-1
[2] LCD
DISPLAY ...............................................7-6
Parts Guide
•
In the interests of user-safety the set should be restored to its origi-
nal condition and only parts identical to those specified be used.
nal condition and only parts identical to those specified be used.
XL-MP40H Micro Component System consisting of XL-
MP40H (main unit) and CP-MP40H (speaker system).
MP40H (main unit) and CP-MP40H (speaker system).
•
Note for users in U.K.
Recording and playback of any material may require consent which
SHARP is unable to give. Please refer particularly to the provisions
of Copyright Act 1956, the Dramatic and Musical Performers Pro-
tection Act 1956, the Performers Protection Acts 1963 and 1972
and to any subsequent statutory enactments and orders.
Recording and playback of any material may require consent which
SHARP is unable to give. Please refer particularly to the provisions
of Copyright Act 1956, the Dramatic and Musical Performers Pro-
tection Act 1956, the Performers Protection Acts 1963 and 1972
and to any subsequent statutory enactments and orders.
(Except for U.K.)
XL-MP40H
i
Audio
XL-MP40H
Service Manual
XLMP40H
Market
E
PRECAUTIONS FOR USING LEAD-FREE SOLDER
1. Employing lead-free solder
"MAIN,DISPLAY,LED,POWER,SWITCH,JACK PWB," of this model employs lead-free solder. The LF symbol indicates
lead-free solder, and is attached on the PWB and service manuals. The alphabetical character following LF shows the
type of lead-free solder.
Example:
lead-free solder, and is attached on the PWB and service manuals. The alphabetical character following LF shows the
type of lead-free solder.
Example:
Indicates lead-free solder of tin, silver and copper.
Lead-free wire solder for servicing
Ref No.
Description
Parts No.
PWB-A2
PWB-A3
PWB-A4
PWB-A5
DISPLAY
DCEKKV512SJ03
PWB-A1
MAIN
DCEKKV512SJ03
DCEKKV512SJ03
DCEKKV512SJ03
DCEKKV512SJ03
JACK
PWB-A6
DCEKKV512SJ03
SWITCH
POWER
LED
2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder
may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a
dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station
or service branch in your area.
may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a
dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station
or service branch in your area.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder by 40 C,
and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of
time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded,
remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the
power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use
of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of
time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded,
remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the
power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use
of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication on the PWB silk.
XL-MP40H
1 – 1
Audio
XL-MP40H
Service Manual
XLMP40H
Market
E
CHAPTER 1.
GENERAL DESCRIPTION
[1] SAFETY PRECAUTION FOR SERVICE MANUAL
Precaution to be taken when replacing and servicing the Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the follow-
ing precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
ing precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than the lead-in posi-
tion, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping.
3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
4) Under no circumstances look directly into the Pickup Lens at any time.
5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation
exposure.
[2] IMPORTANT SERVICE NOTES (FOR U.K.
ONLY)
ONLY)
Before returning the unit to the customer after completion of a repair or
adjustment it is necessary for the following withstand voltage test to be
applied to ensure the unit is safe for the customer to use.
adjustment it is necessary for the following withstand voltage test to be
applied to ensure the unit is safe for the customer to use.
Setting of Withstanding Voltage Tester and set.
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
A L T I S T A A K ÄY T T ÄJÄN T U R V A L L I S U U S L U O K A N 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
A L T I S T A A K ÄY T T ÄJÄN T U R V A L L I S U U S L U O K A N 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN
I D E N N A B R U K S A N V I S N I N G S P E C I F I C E R A S . K A N
A N V ÄN D A R E N U T S ÄT T A S F ÖR O S Y N L I G L A S E R -
S T R ÅL N I N G , S O M Ö V E R S K R I D E R G R ÄN S E N F ÖR
L A S E R K L A S S 1 .
I D E N N A B R U K S A N V I S N I N G S P E C I F I C E R A S . K A N
A N V ÄN D A R E N U T S ÄT T A S F ÖR O S Y N L I G L A S E R -
S T R ÅL N I N G , S O M Ö V E R S K R I D E R G R ÄN S E N F ÖR
L A S E R K L A S S 1 .
ADVARSEL-USYNLIG LASERSTRÅLING VED ÅBNING. SE IKKE IND I
STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO! AVATTAESSA OLET ALTTIINA NÄKYMÄTÖN LASERSÄTEILYLLE.
ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN LAITTEEN
LÄPI.
ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN LAITTEEN
LÄPI.
VARNING-OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD.
STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM
OPTISKT INSTRUMENT.
STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM
OPTISKT INSTRUMENT.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Set name
set value
Withstanding Voltage Tester
Test voltage
4,240 VPEAK
3,000 VRMS
3,000 VRMS
Set time
6 secs
Set current (Cutoff current)
4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.
NG: The “NG” lamp lights and the buzzer sounds.
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
TO GND OF CHASSIS
SCREW
WITHSTANDING
VOLTAGE TESTER
XL-MP40H
1 – 2
[3] SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
TO THE OPERATION MANUAL.
Except for U.K.
General
Amplifier
Tuner
CD player
Cassette deck
Speaker
Power source
AC 230 V, 50 Hz
Power
consumption
consumption
Power on: 25 W
Power stand-by: 0.9 W
Dimensions
Width: 160 mm (6-5/16")
Height: 240 mm (9-1/2")
Depth: 245 mm (10")
Height: 240 mm (9-1/2")
Depth: 245 mm (10")
Weight
2.5 kg (5.5 lbs.)
Output power
PMPO: 30 W (total)
MPO: 15 W (7.5 W + 7.5 W) (DIN 45 324)
RMS: 10 W (5 W + 5 W) (DIN 45 324)
Output terminals
Speakers: 4 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
(recommended: 32 ohms)
Input terminals
Video/Auxiliary (audio signal):
500 mV/47 k ohms
500 mV/47 k ohms
Frequency range
FM: 87.5 - 108.0 MHz
AM: 522 - 1,620 kHz
Type
Compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser
pickup
pickup
D/A converter
1-bit D/A converter
Frequency
response
response
20 - 20,000 Hz
Dynamic range
90 dB (1 kHz)
Frequency
response
response
50 - 14,000 Hz (normal tape)
Signal/noise ratio
50 dB (recording/playback)
Wow and flutter
0.35 % (DIN 45 511)
Type
10 cm (4") full-range speaker
Maximum input
power
power
10 W
Rated input power
5 W
Impedance
4 ohms
Dimensions
Width: 145 mm (5-3/4")
Height: 240 mm (9-1/2")
Depth: 180 mm (7-1/16")
Height: 240 mm (9-1/2")
Depth: 180 mm (7-1/16")
Weight
1.4 kg (3.1 lbs.)/each
For U.K.
General
Amplifier
Tuner
CD player
Cassette deck
Speaker
Power source
AC 230 V - 240V, 50 Hz
Power
consumption
consumption
Power on: 25 W
Power stand-by: 0.9 W
Dimensions
Width: 160 mm (6-5/16")
Height: 240 mm (9-1/2")
Depth: 245 mm (10")
Height: 240 mm (9-1/2")
Depth: 245 mm (10")
Weight
2.5 kg (5.5 lbs.)
Output power
RMS: 10 W (5 W + 5 W) (10 % T.H.D.)
Output terminals
Speakers: 4 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
(recommended: 32 ohms)
Input terminals
Video/Auxiliary (audio signal):
500 mV/47 k ohms
500 mV/47 k ohms
Frequency range
FM: 87.5 - 108.0 MHz
AM: 522 - 1,620 kHz
Type
Compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser
pickup
pickup
D/A converter
1-bit D/A converter
Frequency
response
response
20 - 20,000 Hz
Dynamic range
90 dB (1 kHz)
Frequency
response
response
50 - 14,000 Hz (normal tape)
Signal/noise ratio
50 dB (recording/playback)
Wow and flutter
0.3 % (WRMS)
Type
10 cm (4") full-range speaker
Maximum input
power
power
10 W
Rated input power
5 W
Impedance
4 ohms
Dimensions
Width: 145 mm (5-3/4")
Height: 240 mm (9-1/2")
Depth: 180 mm (7-1/16")
Height: 240 mm (9-1/2")
Depth: 180 mm (7-1/16")
Weight
1.4 kg (3.1 lbs.)/each
Specifications for this model are subject to change without prior
notice.
notice.
