Sharp CD-MPX100E (serv.man3) Service Manual ▷ View online
CD-MPX100E
SERVICE MANUAL
• 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 Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.
SHARP CORPORATION
CONTENTS
Parts marked with "
" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ................................................. 1-1
[2] Names of parts ............................................... 1-2
[1] Specifications ................................................. 1-1
[2] Names of parts ............................................... 1-2
CHAPTER 2. ADJUSTMENTS
[1] Mechanism
[1] Mechanism
section ........................................ 2-1
[2] Tuner
section ................................................. 2-1
[3] TEST
MODE .................................................. 2-2
[4] CD
section...................................................... 2-3
CHAPTER 3. MECHANISM BLOCKS
[1] Caution
[1] Caution
on
diassembly................................... 3-1
[2] Removing and reinstalling the main parts
........ 3-4
CHAPTER 4. DIAGRAMS
[1] Block
[1] Block
diagrams............................................... 4-1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Notes on schematic diagram.......................... 5-1
[2] Types of transistor and LED........................... 5-1
[3] Waveforms of CD circuit ................................ 5-2
[4] Voltage ........................................................... 5-3
[1] Notes on schematic diagram.......................... 5-1
[2] Types of transistor and LED........................... 5-1
[3] Waveforms of CD circuit ................................ 5-2
[4] Voltage ........................................................... 5-3
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT
[1] Schematic
LAYOUT
[1] Schematic
diagram ........................................6-1
[2] Wiring side of PWB...................................... 6-11
CHAPTER 7. FLOWCHART
[1] Troubleshooting .............................................7-1
[1] Troubleshooting .............................................7-1
CHAPTER 8. OTHERS
[1] Function table of IC .......................................8-1
[2] FL
[1] Function table of IC .......................................8-1
[2] FL
Display......................................................8-9
Parts Guide
DISPLAY
No. S3528CDMPX10H
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
original condition and only parts identical to those specified be
used.
MINI COMPONENT SYSTEM
CD-MPX100E
MODEL
CD-MPX100E Mini Component System consisting of
CD-MPX100E (main unit) and CP-MPX100H (speaker
system).
CD-MPX100E (main unit) and CP-MPX100H (speaker
system).
CD-MPX100E
– i –
[1] Safety precaution for service manual
Precaution to be taken when replacing and servicing the
Laser Pickup.
Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output
for this model is specified to be lower than Class 1 Require-
ments. However, the following precautions must be observed
during servicing to protect your eyes against exposure to the
Laser beam.
for this model is specified to be lower than Class 1 Require-
ments. However, the following 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 position, the Laser will light for sev-
eral seconds to detect a disc. Do not look into the Pickup
Lens.
outer than the lead-in position, the Laser will light for sev-
eral 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.
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.
in hazardous radiation exposure.
[2] Important service notes (For U.K. 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 cus-
tomer to use.
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the cus-
tomer to use.
Setting of Withstanding Voltage Tester and set.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Set name
set value
Withstanding Voltage Tester
Test voltage
4 kV DC
Set time
3 secs
Set current (Cutoff current)
3 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
CD-MPX100E
PRECAUTIONS FOR USING LEAD-FREE SOLDER
1. Employing lead-free solder
“All PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals.
The alphabetical character following LF shows the type of lead-free solder.
“All PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs 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.
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.
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.
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.
Lead-free wire solder for servicing
Ref No.
Parts No.
Description
PWB-A
92LPWB6295MANS
Main/Display/Headphones
PWB-B
92LPWB6295PWRS
Power/Transformer
PWB-C
92LPWB6243CDUS
CD MP3
– ii –
CD-MPX100E
1 – 1
Audio
CD-MPX100E
Service Manual
CD-MPX100E
Market
E
CHAPTER 1.
GENERAL DESCRIPTION
[1] Specifications
General
Amplifier
CD player
Tuner
Cassette deck
Power source
AC 230 - 240 V, 50 Hz
Power consumption 50 W
Dimensions
Dimensions
Width: 270 mm (10-5/8")
Height: 305 mm (12")
Depth: 342 mm (13-1/2")
Height: 305 mm (12")
Depth: 342 mm (13-1/2")
Weight
6.1 kg (13.42 lbs.)
Output power
MPO: 78 W (39 W + 39 W) (10 % T.H.D.)
RMS: 40 W (20 W + 20 W) (10 % T.H.D.)
RMS: 34 W (17 W + 17 W) (0.9 % T.H.D.)
Output terminals
Speaker: 6 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
Type
3-disc multi-play compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser
pickup
pickup
D/A converter
1-bit D/A converter
Frequency response 20 - 20,000 Hz
Dynamic range
Dynamic range
90 dB (1 kHz)
Frequency range
FM: 87.5 - 108.0 MHz
AM: 522 - 1,620 kHz
AM: 522 - 1,620 kHz
Frequency response 50 - 14,000 Hz (normal tape)
Signal/noise ratio
Signal/noise ratio
55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter
0.3 % (WRMS)
Type
2-way type speaker system
12 cm (4-3/4") Woofer with Piezo
12 cm (4-3/4") Woofer with Piezo
Maximum input
power
40 W
Rated input power 20 W
Impedance
Impedance
6 ohms
Dimensions
Width: 200 mm (7-7/8")
Height: 305 mm (12")
Depth: 185 mm (7-1/4")
Height: 305 mm (12")
Depth: 185 mm (7-1/4")
Weight
2.4 kg (5.3 lbs.)/each
CD-MPX100E
CP-MPX100H
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
TO THE OPERATION MANUAL.
Specifications for this model are subject to change without
prior notice.
prior notice.
