Read Sharp SD-EX200 (serv.man19) Service Manual online
SD-EX200H
No. S4340SDEX200H
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
DISASSEMBLY .................................................................................................................................................................. 6
REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 8
ADJUSTMENT ................................................................................................................................................................... 9
DESCRIPTION OF CIRCUIT FOR 1-BIT UNIT ................................................................................................................. 9
TO CHECK AND CANCEL PROTECT CIRCUIT DETECTION LINE .............................................................................. 10
TEST MODE .................................................................................................................................................................... 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 11
TYPES OF TRANSISTOR AND LED ............................................................................................................................... 11
BLOCK DIAGRAM ........................................................................................................................................................... 12
WIRING SIDE OF P.W.BOARD / SCHEMATIC DIAGRAM ............................................................................................. 18
VOLTAGE ........................................................................................................................................................................ 35
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 36
WAVEFORMS OF 1-BIT CIRCUIT .................................................................................................................................. 37
TROUBLESHOOTING ..................................................................................................................................................... 38
FUNCTION TABLE OF IC ................................................................................................................................................ 42
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
DISASSEMBLY .................................................................................................................................................................. 6
REMOVING AND REINSTALLING THE MAIN PARTS ..................................................................................................... 8
ADJUSTMENT ................................................................................................................................................................... 9
DESCRIPTION OF CIRCUIT FOR 1-BIT UNIT ................................................................................................................. 9
TO CHECK AND CANCEL PROTECT CIRCUIT DETECTION LINE .............................................................................. 10
TEST MODE .................................................................................................................................................................... 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 11
TYPES OF TRANSISTOR AND LED ............................................................................................................................... 11
BLOCK DIAGRAM ........................................................................................................................................................... 12
WIRING SIDE OF P.W.BOARD / SCHEMATIC DIAGRAM ............................................................................................. 18
VOLTAGE ........................................................................................................................................................................ 35
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 36
WAVEFORMS OF 1-BIT CIRCUIT .................................................................................................................................. 37
TROUBLESHOOTING ..................................................................................................................................................... 38
FUNCTION TABLE OF IC ................................................................................................................................................ 42
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)
SERVICE MANUAL
SHARP CORPORATION
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
used.
1-BIT DIGITAL AUDIO SYSTEM
MODEL
SD-EX200H
SD-EX200H 1-Bit Digital Audio System consisting of
SD-EX200H (main unit) and CP-EX200H (speaker system).
SD-EX200H (main unit) and CP-EX200H (speaker system).
SD-EX200H
– 2 –
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.
Setting of Withstanding Voltage Tester and set.
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.
Setting of Withstanding Voltage Tester and set.
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
Requirements. 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
Requirements. 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 several
seconds to detect a disc. Do not look into the Pickup Lens.
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.
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.
IMPORTANT SERVICE NOTES (FOR U.K. ONLY)
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
SAFETY PRECAUTION FOR SERVICE MANUAL
Laser Diode Properties
ADVERSEL-SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING. SE IKKE IND I
STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO! AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN
LAITTEEN LÄPI.
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ OPTISEN
LAITTEEN LÄPI.
VARNING-SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR
ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM
OPTISKT INSTRUMENT.
ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ STRÅLEN GENOM
OPTISKT INSTRUMENT.
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA ALTISTAA
KÄYTTÄJÄN TURVALLISUUSLUOKAN 1 YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE.
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA ALTISTAA
KÄYTTÄJÄN TURVALLISUUSLUOKAN 1 YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN I DENNA
BRUKSANVISNING SPECIFICERAS. KAN ANVÄNDAREN UTSÄTTAS FÖR
OSYNLIG LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.
BRUKSANVISNING SPECIFICERAS. KAN ANVÄNDAREN UTSÄTTAS FÖR
OSYNLIG LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.
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
4.7 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.
– 3 –
SD-EX200H
SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
TO THE OPERATION MANUAL.
SD-EX200H (Except for U.K.)
SD-EX200H (For U.K.)
General
Amplifier
CD player
Tuner
Power source
AC 230 V, 50 Hz
Power consumption
Power on: 68 W
Power stand-by: 0.9 W
Dimensions
Width: 380 mm (15")
Height: 200 mm (7-7/8")
Depth: 120 mm (4-3/4")
Height: 200 mm (7-7/8")
Depth: 120 mm (4-3/4")
Weight
3.4 kg (7.5 lbs.)
Output terminals
Speakers: 4 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Digital output (optical)
Input terminals
Auxiliary input: 500 mV/47 kohms
Amplification system
64fs 1-bit switching (Remarks: fs = 44.1 kHz)
Rated output power
RMS: 200 W (100 W + 100 W) (DIN 45 500)
A/D noise shaping
7th-order (delta - sigma) modulation
Type
1-disc vertical type compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser pickup
D/A converter
24-bit/96 k D/A converter
Frequency response
20 - 20,000 Hz
Dynamic range
101 dB (1 kHz)
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Type
2-way type speaker system
5 cm (2") Tweeter
15 cm (5-7/8") Woofer
Maximum input power
200 W
Rated input power
100 W
Impedance
4 ohms
Dimensions
Width: 190mm (7-1/2")
Height: 290mm (11-7/16")
Depth: 235mm (9-1/4")
Height: 290mm (11-7/16")
Depth: 235mm (9-1/4")
Weight
3.8 kg (8.4 lbs.)/each
General
Amplifier
CD player
Tuner
Power source
AC 230 V, 50 Hz
Power consumption
Power on: 68 W
Power stand-by: 0.9 W
Dimensions
Width: 380 mm (15")
Height: 200 mm (7-7/8")
Depth: 120 mm (4-3/4")
Height: 200 mm (7-7/8")
Depth: 120 mm (4-3/4")
Weight
3.4 kg (7.5 lbs.)
Output terminals
Speakers: 4 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Digital output (optical)
Input terminals
Auxiliary input: 500 mV/47 k ohms
Amplification system
64fs 1-bit switching (Remarks: fs = 44.1 kHz)
Rated output power
RMS: 200 W (100 W + 100 W) (1 % T.H.D.)
A/D noise shaping
7th-order (delta - sigma) modulation
Type
1-disc vertical type compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser pickup
D/A converter
24-bit/96 k D/A converter
Frequency response
20 - 20,000 Hz
Dynamic range
101 dB (1 kHz)
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Type
2-way type speaker system
5 cm (2") Tweeter
15 cm (5-7/8") Woofer
Maximum input power
200 W
Rated input power
100 W
Impedance
4 ohms
Dimensions
Width: 190mm (7-1/2")
Height: 290mm (11-7/16")
Depth: 235mm (9-1/4")
Height: 290mm (11-7/16")
Depth: 235mm (9-1/4")
Weight
3.8 kg (8.4 lbs.)/each
CP-EX200H (Except for U.K.)
CP-EX200H (For U.K.)
SD-EX200H
– 4 –
NAMES OF PARTS
SD-EX200H
Front panel
1. CD Cover
2. Remote Sensor
3. Timer Set Indicator
4. Headphone Socket
5. CD Stop Button
6. CD Play/Pause Button
7. Tuner (Band) Button
8. Auxiliary Button
9. Volume Up and Down Buttons
2. Remote Sensor
3. Timer Set Indicator
4. Headphone Socket
5. CD Stop Button
6. CD Play/Pause Button
7. Tuner (Band) Button
8. Auxiliary Button
9. Volume Up and Down Buttons
10. CD Cover Open/Close Button
11. CD Track Down or Fast Reverse/Tuning Down Button
12. CD Track Up or Fast Forward/Tuning Up Button
13. Bass/Treble Button
14. On/Stand-by Button
11. CD Track Down or Fast Reverse/Tuning Down Button
12. CD Track Up or Fast Forward/Tuning Up Button
13. Bass/Treble Button
14. On/Stand-by Button
Display
1. Surround Indicator
2. RDS Indicator
3. Radio Text Indicator
4. Traffic Announcement Indicator
5. FM Stereo Mode Indicator
6. Timer Play Indicator
7. Sleep Indicator
8. Dynamic PTY Indicator
9. Traffic Programme Indicator
2. RDS Indicator
3. Radio Text Indicator
4. Traffic Announcement Indicator
5. FM Stereo Mode Indicator
6. Timer Play Indicator
7. Sleep Indicator
8. Dynamic PTY Indicator
9. Traffic Programme Indicator
10. FM Stereo Receiving Indicator
11. CD Memory Indicator
12. Random Play Indicator
13. Function Indicators
14. CD Repeat Play Indicator
15. CD Play Indicator
16. CD Pause Indicator
11. CD Memory Indicator
12. Random Play Indicator
13. Function Indicators
14. CD Repeat Play Indicator
15. CD Play Indicator
16. CD Pause Indicator
3
4
5
4
5
2
11
12
13
5
8
9
7
10
11
13
14
12
3
1
6
7
7
8
9
9
10
4
14
15
16
15
16
1
2
Side panel
1. FM 75 Ohms Aerial Socket
2. Aerial Earth Terminal
3. AM Aerial Terminal
4. Auxiliary Input Sockets
5. Digital Output Socket
6. AC Power Lead
7. Speaker Terminals
8. Left Side Cover
9. Right Side Cover
2. Aerial Earth Terminal
3. AM Aerial Terminal
4. Auxiliary Input Sockets
5. Digital Output Socket
6. AC Power Lead
7. Speaker Terminals
8. Left Side Cover
9. Right Side Cover
1
2
3
4
5
6
2
3
4
5
6
7
Left side
Right side
8
9
6
