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CD-SW340H
SERVICE MANUAL
No. S5824CDSW340H
PRECAUTIONS FOR USING LEAD-FREE SOLDER
CHAPTER 1. GENERAL DESCRIPTION
[1] Safety
CHAPTER 1. GENERAL DESCRIPTION
[1] Safety
Precaution
For Service Manual........... 1-1
[2] Important Service Notes (for U.K. only) ......... 1-2
[3] Specifications ................................................. 1-2
[4] Name
[3] Specifications ................................................. 1-2
[4] Name
Of
Parts ............................................... 1-4
CHAPTER 2. ADJUSTMENTS
[1] Mechanism
[1] Mechanism
Section........................................ 2-1
[2] Test
Mode....................................................... 2-2
[3] CD
Section ..................................................... 2-4
CHAPTER 3. MECHANISM BLOCKS
[1] Caution On Disassembly................................ 3-1
[2] Removing And Reinstalling The Main Parts ..... 3-4
[1] Caution On Disassembly................................ 3-1
[2] Removing And Reinstalling The Main Parts ..... 3-4
CHAPTER 4. DIAGRAMS
[1] Main Block Diagrams ..................................... 4-1
[2] CD
[1] Main Block Diagrams ..................................... 4-1
[2] CD
Block
Diagrams....................................... 4-3
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] Schematic
LAYOUT
[1] Notes On Schematic Diagram .......................6-1
[2] Types Of Transistor And LED ........................6-1
[3] Schematic
Diagram .......................................6-2
[4] Charts Of Connecting Wires........................6-24
[5] Wiring Side Of PWB ....................................6-26
[5] Wiring Side Of PWB ....................................6-26
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......................................................8-8
[3] Wiring Of Primary Supply Leads
(for U.K. only) ................................................8-9
PARTS GUIDE
MINI COMPONENT SYSTEM
CD-SW340H
MODEL
CD-SW340H Mini Component System consisting of
CD-SW340H (main unit), CP-S340H (front speaker)
and CP-SW340H (subwoofer).
CD-SW340H (main unit), CP-S340H (front speaker)
and CP-SW340H (subwoofer).
CONTENTS
SHARP CORPORATION
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.
specified ones for maintaining the safety and performance of the set.
[ For Europe, U.K., Australia and New Zealand ]
• In the interests of user-safety the set should be restored
to its original condition and only parts identical to those
specified be used.
●
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
Performers Protection Acts 1963 and 1972 and
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
Performers Protection Acts 1963 and 1972 and
subsequent statutory enactments and orders.
CD-SW340H
– i –
PRECAUTIONS FOR USING LEAD-FREE SOLDER
1. Employing lead-free solder
Example:
Indicates lead-free solder of tin, silver and copper.
Lead-free wire solder for servicing
Ref No.
Description
Parts No.
"MAIN, POWER, DISPLAY, AUDIO IN, CD, FRONT SPEAKER LED, SUBWOOFER LED 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.
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.
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.
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.
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 wet ability, 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 of for 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 sand paper.
Be careful when replacing parts with polarity indication on the PWB silk.
solder by 40°C,and as it has poor solder wet ability, 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 of for 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 sand paper.
Be careful when replacing parts with polarity indication on the PWB silk.
PWB-A
92LPWB7285MANS
MAIN (A1), POWER (A2)
PWB-B
92LPWB7285DPLS
DISPLAY (B1), AUDIO IN (B2)
PWB-C 92LPWB7285CDUS CD
PWB-D 92LPWB6514LEDS FRONT
SPEAKER
LED
PWB-E 92LPWB7285LEDS SUB
WOOFER
LED
CD-SW340H
–2
CHAPTER 1: GENERAL DESCRIPTION
[1] Safety Precaution For Service Manual
This product is classified as a CLASS 1 LASER PRODUCT.
WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF LASER POWER OUTPUT FOR THIS MODEL IS SPECIFIED TO
BE LOWER THAN CLASS
BE LOWER THAN CLASS
I REQUIREMENTS. HOWEVER, THE FOLLOWING PRECAUTIONS MUST BE OBSERVED
DURING SERVICING TO PROTECT YOUR EYES AGAINTS 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
SEVERAL SECONDS TO DETECT A DISC.
DO NOT LOOK INTO THE PICKUP LENS.
AND THE PICKUP IS ON A POSITION OUTER THAN THE LEAD-IN POSITION, 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.
HAVE ALREADY BEEN ADJUSTED PRIOR TO SHIPPING.
3-
NO ADJUSTMENT TO THE LASER POWER SHOULD BE ATTEMPTED WHEN REPLACING OR SERVICING
THE PICKUP.
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.
THOSE SPECIFIED HEREIN MAY RESULT 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 customer to use.
applied to ensure the unit is safe for the customer to use.
Setting of Withstanding Voltage Tester and set.
Set name
set value
Withstanding Voltage Tester
Test voltage
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.
Judgment
OK: The “GOOD” lamp lights.
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
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.
1 – 1
CD-SW340H
– 5
[3] Specifications
CD-SW340H
General
Tuner
(*) This power consumption value is obtained when the
demonstration mode is cancelled in the power stand-by mode.
Power source
AC 220 - 240 V ~ 50 Hz
Power consumption Power on: 175 W
Power stand-by: 0.6 W (*)
Dimensions
Width: 260 mm (10 - 1/4" )
Height: 332 mm (13" )
Depth: 324 mm (12 - 7/8")
Height: 332 mm (13" )
Depth: 324 mm (12 - 7/8")
Weight
9.9 kg (21.8 lbs.)
Frequency range
FM: 87.5 - 108.0 MHz
AM: 522 - 1,620 kHz
Amplifier
Output power
PMPO: 160 0W
Front Speaker:
MPO: 400 W (200 W + 200 W) (10% T.H.D.)
RMS: 270 W (135 W + 135 W) (10% T.H.D.)
RMS: 180 W (90 W + 90 W) (1% T.H.D.)
Front Speaker:
MPO: 400 W (200 W + 200 W) (10% T.H.D.)
RMS: 270 W (135 W + 135 W) (10% T.H.D.)
RMS: 180 W (90 W + 90 W) (1% T.H.D.)
Subwoofer:
MPO: 400 W (10% T.H.D.)
RMS: 250 W (10% T.H.D.)
RMS: 190 W (1% T.H.D.)
MPO: 400 W (10% T.H.D.)
RMS: 250 W (10% T.H.D.)
RMS: 190 W (1% T.H.D.)
Output terminals
Front Speakers: 6 ohms
Subwoofer: 12 ohms
Headphones: 12 ohms
(recommended: 32 ohms)
(recommended: 32 ohms)
Input terminals
Audio In (audio signal):
250 mV/47 k ohms
250 mV/47 k ohms
CD player
Cassette deck
Type
5-disc multi-play compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser
pickup
pickup
D/A converter
Multi 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
55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter
0.3% (DIN 45 511)
Front Speaker
Subwoofer
Type
2-way type speaker system
5 cm (2") tweeter
16 cm (6 - 5/16") woofer
Maximum input
power
power
270 W
Rated input power
135 W
Impedance
6 ohms
Dimensions
Width: 200 mm (7 - 7/8")
Height: 330 mm (13")
Depth: 220.5 mm (8 - 11/16")
Height: 330 mm (13")
Depth: 220.5 mm (8 - 11/16")
Weight
3.18 kg (7.0 lbs.)/each
Type
Subwoofer system
20 cm (8") woofer
Maximum input
power
power
500 W
Rated input power
250 W
Impedance
12 ohms
Dimensions
Width: 250 mm (9 - 13/16")
Height: 330 mm (13")
Depth: 288 mm (11 - 5/16")
Height: 330 mm (13")
Depth: 288 mm (11 - 5/16")
Weight
5.85 kg (12.9 lbs.)
1 – 2