Read Sharp XL-DAB9H (serv.man3) Service Manual online
SERVICE MANUAL
XL-DAB9H
No. S8560XLDAB9H/
MICRO COMPONENT SYSTEM
XL-DAB9H
MODEL
CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
[1] PRECAUTION
[1] PRECAUTION
FOR USING LEAD-FREE
SOLDER ........................................................ 1-1
[2] SAFETY PRECAUTION FOR SERVICE
MANUAL ........................................................ 1-2
[3] IMPORTANT SERVICE NOTES (FOR U.K.
ONLY) ............................................................ 1-2
[4] SPECIFICATIONS ......................................... 1-3
[5] NAMES
[5] NAMES
OF
PARTS........................................ 1-4
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT ............................................... 2-1
[2] How to check the version number of the
[1] ADJUSTMENT ............................................... 2-1
[2] How to check the version number of the
system microcomputer ................................... 2-1
[3] TEST
MODE .................................................. 2-2
CHAPTER 3. MECHANICAL DESCRIPTION
[1] DISASSEMBLY .............................................. 3-1
[1] DISASSEMBLY .............................................. 3-1
CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM MAIN ............................... 4-1
[2] BLOCK DIAGRAM DISPLAY ......................... 4-3
[1] BLOCK DIAGRAM MAIN ............................... 4-1
[2] BLOCK DIAGRAM DISPLAY ......................... 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 DIAGRAM MAIN(1/3)...............6-2
[4] SCHEMATIC DIAGRAM MAIN(2/3)...............6-4
[5] SCHEMATIC DIAGRAM MAIN(3/3)...............6-6
[6] SCHEMATIC DIAGRAM DISPLAY ................6-8
[7] WIRING SIDE OF PWB ..............................6-10
[8] WIRING SIDE OF PWB MAIN TOP ............6-12
[9] WIRING SIDE OF PWB MAIN BOTTOM......6-14
[10] WIRING SIDE OF PWB POWER/JACK......6-16
[11] WIRING SIDE OF PWB DISPLAY/
LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM ............6-1
[2] TYPES OF TRANSISTOR AND LED ............6-1
[3] SCHEMATIC DIAGRAM MAIN(1/3)...............6-2
[4] SCHEMATIC DIAGRAM MAIN(2/3)...............6-4
[5] SCHEMATIC DIAGRAM MAIN(3/3)...............6-6
[6] SCHEMATIC DIAGRAM DISPLAY ................6-8
[7] WIRING SIDE OF PWB ..............................6-10
[8] WIRING SIDE OF PWB MAIN TOP ............6-12
[9] WIRING SIDE OF PWB MAIN BOTTOM......6-14
[10] WIRING SIDE OF PWB POWER/JACK......6-16
[11] WIRING SIDE OF PWB DISPLAY/
SWITCH ......................................................6-18
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 ................................................8-10
Parts Guide
TopPage
XL-DAB9H Micro Component System consisting of
XL-DAB9H (main unit) and CP-DAB9H (speaker system).
XL-DAB9H (main unit) and CP-DAB9H (speaker system).
•
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.
(Except for U.K.)
(For U.K. only)
XL-DAB9H
1 – 1
Home Stereo
XL-DAB9H
Service Manual
XL-DAB9H S/M
Market
E
CHAPTER 1.
GENERAL DESCRIPTION
[1] PRECAUTION FOR USING LEAD-FREE SOLDER
1. Employing 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.
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.
Lead-free wire solder for servicing
Ref No.
Description
Parts No.
PWB-A
DCEKKV596SJ03
"
MAIN,JACK,SENSOR,SWITCH,DISPLAY,POWER
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.
following LF shows the type of lead-free solder.
MAIN(A1)/DISPLAY(A2)/POWER(A3)SENSOR(A4) [Exceput for U.K.]
PWB-A
DCEKKV597SJ03
PWB-B
PWB-B
DCEKSV596SJ03
DCEKSV597SJ03
MAIN(A1)/DISPLAY(A2)/POWER(A3)SENSOR(A4) [For U.K.]
SWITCH(B1) /JACK(B2)/[Exceput for U.K.]
SWITCH(B1)/JACK(B2) [For U.K.]
XL-DAB9H
1 – 2
[2] 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.
[3] 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.
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
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
A L T I S T A A K Ä Y T T Ä J Ä N 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 Ä Y T T Ä J Ä N 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 Ä N D A R E N U T S Ä T T A S F Ö R O S Y N L I G L A S E R -
S T R Å L N I N G , S O M Ö V E R S K R I D E R G R Ä N S E N F Ö R
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 Ä N D A R E N U T S Ä T T A S F Ö R O S Y N L I G L A S E R -
S T R Å L N I N G , S O M Ö V E R S K R I D E R G R Ä N S E N F Ö R
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.
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
XL-DAB9H
1 – 3
[4] SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.
Except for U.K.
For U.K.
Genera
■
■
■
■
■
l
Amplifier
Tuner
CD player
Speaker
Power source
AC 230 V, 50 Hz
Power
consumption
consumption
Power on: 25 W
Power stand-by: 0.9 W
Dimensions
Width: 100 mm
Height: 205 mm
Depth: 266 mm
Height: 205 mm
Depth: 266 mm
Weight
2.3 kg
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)
Line output: 2 k ohms
Input terminals
Line input: 47 k ohms
Frequency range
DAB: 174 - 240 MHz (Band-III)
1,450 - 1,492 MHz (L-Band)
FM: 87.5 - 108.0 MHz
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)
Type
2-way type speaker system
4 cm tweeter
8 cm woofer
Maximum input
power
power
10 W
Rated input power
5 W
Impedance
4 ohms
Dimensions
Width: 100 mm
Height: 205 mm
Depth: 193 mm
Height: 205 mm
Depth: 193 mm
Weight
1.2 kg/each
Genera
■
■
■
■
■
l
Amplifier
Tuner
CD player
Speaker
Power source
AC 230 V, 50 Hz
Power
consumption
consumption
Power on: 25 W
Power stand-by: 0.9 W
Dimensions
Width: 100 mm
Height: 205 mm
Depth: 266 mm
Height: 205 mm
Depth: 266 mm
Weight
2.3 kg
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)
Line output: 2 k ohms
Input terminals
Line input: 47 k ohms
Frequency range
DAB: 174 - 240 MHz
FM: 87.5 - 108.0 MHz
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)
Type
2-way type speaker system
4 cm tweeter
8 cm woofer
Maximum input
power
power
10 W
Rated input power
5 W
Impedance
4 ohms
Dimensions
Width: 100 mm
Height: 205 mm
Depth: 193 mm
Height: 205 mm
Depth: 193 mm
Weight
1.2 kg/each
Specifications for this model are subject to change without prior
notice.
notice.
