Sharp md x 60
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Page 1
M D-X60
SHARP SERVICE MANUAL
No.56839MDX60/H
MD-X60
on-
. Dolby noise reduction manutactured under license from Dolby
Laboratories Licensing Corporation.
0 "DOLBY" and the double-D symbol DE] are trademarks of Dolby
Laboramnes Licensmg Corporation. . In the interests of userrsatety the set should be restored to its original
. It is the intent of Sharp that this product be used in full compliance condition and only parts identical to those specified should be used.
with the copyright laws of the United States and that prior permission
be obtined from copyright owners whenever necessary.
0 US and toreign patents licensed from Dolby Laboratories Licensing
Corporation.
I lfiOMPACT
DIGITAL AUDIO
/- CONTENTS -\
IMPOTANT SERVICE NOTES
SPECIFICATIONS ..
NAMES OF PARTS
OPERATION MANUAL ..
QUICK GUIDE ..
DISASSEMBLY.
REMOVING AND REINSTALLING THE MAIN PARTS
ADJUSTMENT ........
WIRING DIAGRAM.
BLOCK DIAGRAM ..
SCHEMATIC DIAGR
NOTES ON SCHEMATIC DIAGRAM
TYPE OF TRANSISTOR AND LED
WAVEFORMS OF CD CIRCUIT.
WAVEFORMS OF MD CIRCUIT
TROUBLESHOOTING (CD SECTIO )
TROUBLESHOOTING (MD SECTION)
FUNCTION TABLE OF IC .....................
REPLACEMENT PARTS LlST/EXPLODED VIEW/PACKING OF THE SET
This document has been published to be used
SHARP CORPORATION for after sales service only.
The contents are subject to change without notice.
Page 1
M D-X60
SHARP SERVICE MANUAL
No.56839MDX60/H
MD-X60
on-
. Dolby noise reduction manutactured under license from Dolby
Laboratories Licensing Corporation.
0 "DOLBY" and the double-D symbol DE] are trademarks of Dolby
Laboramnes Licensmg Corporation. . In the interests of userrsatety the set should be restored to its original
. It is the intent of Sharp that this product be used in full compliance condition and only parts identical to those specified should be used.
with the copyright laws of the United States and that prior permission
be obtined from copyright owners whenever necessary.
0 US and toreign patents licensed from Dolby Laboratories Licensing
Corporation.
I lfiOMPACT
DIGITAL AUDIO
/- CONTENTS -\
IMPOTANT SERVICE NOTES
SPECIFICATIONS ..
NAMES OF PARTS
OPERATION MANUAL ..
QUICK GUIDE ..
DISASSEMBLY.
REMOVING AND REINSTALLING THE MAIN PARTS
ADJUSTMENT ........
WIRING DIAGRAM.
BLOCK DIAGRAM ..
SCHEMATIC DIAGR
NOTES ON SCHEMATIC DIAGRAM
TYPE OF TRANSISTOR AND LED
WAVEFORMS OF CD CIRCUIT.
WAVEFORMS OF MD CIRCUIT
TROUBLESHOOTING (CD SECTIO )
TROUBLESHOOTING (MD SECTION)
FUNCTION TABLE OF IC .....................
REPLACEMENT PARTS LlST/EXPLODED VIEW/PACKING OF THE SET
This document has been published to be used
SHARP CORPORATION for after sales service only.
The contents are subject to change without notice.
Page 1
M D-X60
SHARP SERVICE MANUAL
No.56839MDX60/H
MD-X60
on-
. Dolby noise reduction manutactured under license from Dolby
Laboratories Licensing Corporation.
0 "DOLBY" and the double-D symbol DE] are trademarks of Dolby
Laboramnes Licensmg Corporation. . In the interests of userrsatety the set should be restored to its original
. It is the intent of Sharp that this product be used in full compliance condition and only parts identical to those specified should be used.
with the copyright laws of the United States and that prior permission
be obtined from copyright owners whenever necessary.
0 US and toreign patents licensed from Dolby Laboratories Licensing
Corporation.
I lfiOMPACT
DIGITAL AUDIO
/- CONTENTS -\
IMPOTANT SERVICE NOTES
SPECIFICATIONS ..
NAMES OF PARTS
OPERATION MANUAL ..
QUICK GUIDE ..
DISASSEMBLY.
REMOVING AND REINSTALLING THE MAIN PARTS
ADJUSTMENT ........
WIRING DIAGRAM.
BLOCK DIAGRAM ..
SCHEMATIC DIAGR
NOTES ON SCHEMATIC DIAGRAM
TYPE OF TRANSISTOR AND LED
WAVEFORMS OF CD CIRCUIT.
WAVEFORMS OF MD CIRCUIT
TROUBLESHOOTING (CD SECTIO )
TROUBLESHOOTING (MD SECTION)
FUNCTION TABLE OF IC .....................
REPLACEMENT PARTS LlST/EXPLODED VIEW/PACKING OF THE SET
This document has been published to be used
SHARP CORPORATION for after sales service only.
The contents are subject to change without notice.
Page 1
M D-X60
SHARP SERVICE MANUAL
No.56839MDX60/H
MD-X60
on-
. Dolby noise reduction manutactured under license from Dolby
Laboratories Licensing Corporation.
0 "DOLBY" and the double-D symbol DE] are trademarks of Dolby
Laboramnes Licensmg Corporation. . In the interests of userrsatety the set should be restored to its original
. It is the intent of Sharp that this product be used in full compliance condition and only parts identical to those specified should be used.
with the copyright laws of the United States and that prior permission
be obtined from copyright owners whenever necessary.
0 US and toreign patents licensed from Dolby Laboratories Licensing
Corporation.
I lfiOMPACT
DIGITAL AUDIO
/- CONTENTS -\
IMPOTANT SERVICE NOTES
SPECIFICATIONS ..
NAMES OF PARTS
OPERATION MANUAL ..
QUICK GUIDE ..
DISASSEMBLY.
REMOVING AND REINSTALLING THE MAIN PARTS
ADJUSTMENT ........
WIRING DIAGRAM.
BLOCK DIAGRAM ..
SCHEMATIC DIAGR
NOTES ON SCHEMATIC DIAGRAM
TYPE OF TRANSISTOR AND LED
WAVEFORMS OF CD CIRCUIT.
WAVEFORMS OF MD CIRCUIT
TROUBLESHOOTING (CD SECTIO )
TROUBLESHOOTING (MD SECTION)
FUNCTION TABLE OF IC .....................
REPLACEMENT PARTS LlST/EXPLODED VIEW/PACKING OF THE SET
This document has been published to be used
SHARP CORPORATION for after sales service only.
The contents are subject to change without notice.
Page 2
MD-X60
TO THE OPERATION MANUAL.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
IMPORTANT SERVICE NOTES
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the following
safety checks.
1. Inspect all lead dress to make certain that leads are not pinched
or that hardware is not lodged between the chassis and other
metal parts in the audio product.
2. Inspect all protective devices such as insulating materials, cabinet,
terminal board, adjustment and compartment covers or shields,
mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage current
in the following manner.
Plug the AC line cord directly into a 120 volt AC outlet.
Using two clip leads, connect a 1 .5k ohm, 10 watt resistor paralleled
by a 0.15pF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as conduit or electrical
ground connected to earth ground.
Use a VTVM or VOM with 1000 ohm per volt, or higher, sensitivity
to measurethe AC voltage drop across the resistor (See diagram).
Connect the resistor connection to all exposed metal parts having
a return path to the chassis (antenna, metal cabinet, screw heads,
knobs and control shafts, escutcheon, etc.) and measure the AC
voltage drop across the resistor.
4%
VTVM
-0AC SCALEO-
1.5k ohms
10W
0.15pF
TEST PROBE CONNECT TO
KNOWN EARTH
GROUND
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the audio product to the owner.
TO EXPOSED
METAL PARTS
SPECIFICATIONS
O MiniDisc recorder section
Type:
Signal readout:
MiniDisc recorder
Nohrcontact, Srbeam semiconductor laser
pickup
Stereo; 2 channels
Monaural; 1 channel (longrtime recording
Audio channel:
mode)
Frequency response: 20 , 20,000 Hz
Rotation speed: 400 , 900 rpm CLV, Approx
Quantization: 16bit linear
Filter:
Error correction:
artimes oversampling digital filter
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
ATRAC (Adaptive TRansform Acoustic
Coding)
Magnetic modulation overwrite method
17bit D/A converter
44.1 kHz
Unmeasurable
(less than 0.001% W. peak)
95 dB (1 kHz)
90 dB (1 kHz)
Coding:
Recording method:
D/A converter:
Sampling frequency:
Wow and flutter:
Signal/noise ratio:
Dynamic range:
0 Compact disc player section
Type: 3rdisc multirplay compact disc player
Signal readout: Nonrcontact, 37beam semiconductor laser
pickup
200 , 500 rpm CLV, Approx.
CIRC (Cross Interleave ReeorSolomon
Code)
16bit linear
17bit D/A converter
artimes oversampling digital filter
Rotation speed:
Error correction:
Quantization:
D/A converter:
Filter:
Frequency response: 20 , 20,000 Hz
Signal/noise ratio: 95 dB (1 kHz)
Dynamic range: 90 dB (1 kHz)
Unmeasurable
(less than 0.001% W. peak)
Wow and flutter:
0 Tuner section
Frequency range: FM; 87.5 , 108 MHz
AM; 530 . 1,720 kHz
FM; 2.5 (N (75 ohms unbalanced)
AM; 650 pV/m
Sensitivity:
O Cassette deck section
Type:
Frequency response:
Compact cassette tape
0 . 14,000 Hz (Normal tape)
0 . 15,000 Hz (CrOz tape)
DC motor with electronic governor x 1
50 dB (Recording/Playback, Dolby NR olf)
Dolby NR effect; 10 dB
(at over 5 kHz)
Motor:
Signal/noise ratio:
Bias and erasure
system: AC
Tape speed: 177/8 ips. (4.76 cm/sec.)
Wow and flutter: 0.15 /a (WRMS)
Heads: Record/playback x 1
Erase x 1
I General
Power source:
Power consumption:
Output power:
AC 120 V, 60 HZ
101 W
40 watts per channel minimum RMS into 6
ohms from 60 Hz to 20 kHz with no more
than 10 /0 total harmonic distortion
MD lN/AUX (Analogr1); 500 mV/47 kohms
Auxiliary (Analogr2); 500 mV/47 kohms
Auxiliary (Digital); optical
Auxiliary; 2.0 V/1 kohm
Headphones; 16 , 50 ohms
(recommended; 32 ohms)
Speakers; 6 ohms
Input terminals:
Output terminals:
Dimensions: Width; 91/2" (240 mm)
Height; 1371/8" (332 mm)
Depth; 1243/16" (325 mm)
Weight: 19.0 lbs. (8.6 kg)
0 Speaker section
Type: 3rway type [6" (150 mm) woofer, 271/2" (65
mm) tweeter and super tweeter]
Maximum input power: 100 W
Rated input power: 50 W
Impedance: 6 ohms
Dimensions: Width; 871/8" (205 mm)
Height; 1371/8" (332 mm)
Depth; 1273/4" (323 mm)
Weight: 9.3 lbs. (4.2 kg)/each
Specifications for this model are subject to change without
prior notice.
Page 2
MD-X60
TO THE OPERATION MANUAL.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
IMPORTANT SERVICE NOTES
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the following
safety checks.
1. Inspect all lead dress to make certain that leads are not pinched
or that hardware is not lodged between the chassis and other
metal parts in the audio product.
2. Inspect all protective devices such as insulating materials, cabinet,
terminal board, adjustment and compartment covers or shields,
mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage current
in the following manner.
Plug the AC line cord directly into a 120 volt AC outlet.
Using two clip leads, connect a 1 .5k ohm, 10 watt resistor paralleled
by a 0.15pF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as conduit or electrical
ground connected to earth ground.
Use a VTVM or VOM with 1000 ohm per volt, or higher, sensitivity
to measurethe AC voltage drop across the resistor (See diagram).
Connect the resistor connection to all exposed metal parts having
a return path to the chassis (antenna, metal cabinet, screw heads,
knobs and control shafts, escutcheon, etc.) and measure the AC
voltage drop across the resistor.
4%
VTVM
-0AC SCALEO-
1.5k ohms
10W
0.15pF
TEST PROBE CONNECT TO
KNOWN EARTH
GROUND
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the audio product to the owner.
TO EXPOSED
METAL PARTS
SPECIFICATIONS
O MiniDisc recorder section
Type:
Signal readout:
MiniDisc recorder
Nohrcontact, Srbeam semiconductor laser
pickup
Stereo; 2 channels
Monaural; 1 channel (longrtime recording
Audio channel:
mode)
Frequency response: 20 , 20,000 Hz
Rotation speed: 400 , 900 rpm CLV, Approx
Quantization: 16bit linear
Filter:
Error correction:
artimes oversampling digital filter
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
ATRAC (Adaptive TRansform Acoustic
Coding)
Magnetic modulation overwrite method
17bit D/A converter
44.1 kHz
Unmeasurable
(less than 0.001% W. peak)
95 dB (1 kHz)
90 dB (1 kHz)
Coding:
Recording method:
D/A converter:
Sampling frequency:
Wow and flutter:
Signal/noise ratio:
Dynamic range:
0 Compact disc player section
Type: 3rdisc multirplay compact disc player
Signal readout: Nonrcontact, 37beam semiconductor laser
pickup
200 , 500 rpm CLV, Approx.
CIRC (Cross Interleave ReeorSolomon
Code)
16bit linear
17bit D/A converter
artimes oversampling digital filter
Rotation speed:
Error correction:
Quantization:
D/A converter:
Filter:
Frequency response: 20 , 20,000 Hz
Signal/noise ratio: 95 dB (1 kHz)
Dynamic range: 90 dB (1 kHz)
Unmeasurable
(less than 0.001% W. peak)
Wow and flutter:
0 Tuner section
Frequency range: FM; 87.5 , 108 MHz
AM; 530 . 1,720 kHz
FM; 2.5 (N (75 ohms unbalanced)
AM; 650 pV/m
Sensitivity:
O Cassette deck section
Type:
Frequency response:
Compact cassette tape
0 . 14,000 Hz (Normal tape)
0 . 15,000 Hz (CrOz tape)
DC motor with electronic governor x 1
50 dB (Recording/Playback, Dolby NR olf)
Dolby NR effect; 10 dB
(at over 5 kHz)
Motor:
Signal/noise ratio:
Bias and erasure
system: AC
Tape speed: 177/8 ips. (4.76 cm/sec.)
Wow and flutter: 0.15 /a (WRMS)
Heads: Record/playback x 1
Erase x 1
I General
Power source:
Power consumption:
Output power:
AC 120 V, 60 HZ
101 W
40 watts per channel minimum RMS into 6
ohms from 60 Hz to 20 kHz with no more
than 10 /0 total harmonic distortion
MD lN/AUX (Analogr1); 500 mV/47 kohms
Auxiliary (Analogr2); 500 mV/47 kohms
Auxiliary (Digital); optical
Auxiliary; 2.0 V/1 kohm
Headphones; 16 , 50 ohms
(recommended; 32 ohms)
Speakers; 6 ohms
Input terminals:
Output terminals:
Dimensions: Width; 91/2" (240 mm)
Height; 1371/8" (332 mm)
Depth; 1243/16" (325 mm)
Weight: 19.0 lbs. (8.6 kg)
0 Speaker section
Type: 3rway type [6" (150 mm) woofer, 271/2" (65
mm) tweeter and super tweeter]
Maximum input power: 100 W
Rated input power: 50 W
Impedance: 6 ohms
Dimensions: Width; 871/8" (205 mm)
Height; 1371/8" (332 mm)
Depth; 1273/4" (323 mm)
Weight: 9.3 lbs. (4.2 kg)/each
Specifications for this model are subject to change without
prior notice.
Page 2
MD-X60
TO THE OPERATION MANUAL.
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
IMPORTANT SERVICE NOTES
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the following
safety checks.
1. Inspect all lead dress to make certain that leads are not pinched
or that hardware is not lodged between the chassis and other
metal parts in the audio product.
2. Inspect all protective devices such as insulating materials, cabinet,
terminal board, adjustment and compartment covers or shields,
mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage current
in the following manner.
Plug the AC line cord directly into a 120 volt AC outlet.
Using two clip leads, connect a 1 .5k ohm, 10 watt resistor paralleled
by a 0.15pF capacitor in series with all exposed metal cabinet
parts and a known earth ground, such as conduit or electrical
ground connected to earth ground.
Use a VTVM or VOM with 1000 ohm per volt, or higher, sensitivity
to measurethe AC voltage drop across the resistor (See diagram).
Connect the resistor connection to all exposed metal parts having
a return path to the chassis (antenna, metal cabinet, screw heads,
knobs and control shafts, escutcheon, etc.) and measure the AC
voltage drop across the resistor.
4%
VTVM
-0AC SCALEO-
1.5k ohms
10W
0.15pF
TEST PROBE CONNECT TO
KNOWN EARTH
GROUND
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.)
or more is excessive and indicates a potential shock hazard which
must be corrected before returning the audio product to the owner.
TO EXPOSED
METAL PARTS
SPECIFICATIONS
O MiniDisc recorder section
Type:
Signal readout:
MiniDisc recorder
Nohrcontact, Srbeam semiconductor laser
pickup
Stereo; 2 channels
Monaural; 1 channel (longrtime recording
Audio channel:
mode)
Frequency response: 20 , 20,000 Hz
Rotation speed: 400 , 900 rpm CLV, Approx
Quantization: 16bit linear
Filter:
Error correction:
artimes oversampling digital filter
ACIRC (Advanced Cross Interleave Reed
Solomon Code)
ATRAC (Adaptive TRansform Acoustic
Coding)
Magnetic modulation overwrite method
17bit D/A converter
44.1 kHz
Unmeasurable
(less than 0.001% W. peak)
95 dB (1 kHz)
90 dB (1 kHz)
Coding:
Recording method:
D/A converter:
Sampling frequency:
Wow and flutter:
Signal/noise ratio:
Dynamic range:
0 Compact disc player section
Type: 3rdisc multirplay compact disc player
Signal readout: Nonrcontact, 37beam semiconductor laser
pickup
200 , 500 rpm CLV, Approx.
CIRC (Cross Interleave ReeorSolomon
Code)
16bit linear
17bit D/A converter
artimes oversampling digital filter
Rotation speed:
Error correction:
Quantization:
D/A converter:
Filter:
Frequency response: 20 , 20,000 Hz
Signal/noise ratio: 95 dB (1 kHz)
Dynamic range: 90 dB (1 kHz)
Unmeasurable
(less than 0.001% W. peak)
Wow and flutter:
0 Tuner section
Frequency range: FM; 87.5 , 108 MHz
AM; 530 . 1,720 kHz
FM; 2.5 (N (75 ohms unbalanced)
AM; 650 pV/m
Sensitivity:
O Cassette deck section
Type:
Frequency response:
Compact cassette tape
0 . 14,000 Hz (Normal tape)
0 . 15,000 Hz (CrOz tape)
DC motor with electronic governor x 1
50 dB (Recording/Playback, Dolby NR olf)
Dolby NR effect; 10 dB
(at over 5 kHz)
Motor:
Signal/noise ratio:
Bias and erasure
system: AC
Tape speed: 177/8 ips. (4.76 cm/sec.)
Wow and flutter: 0.15 /a (WRMS)
Heads: Record/playback x 1
Erase x 1
I General
Power source:
Power consumption:
Output power:
AC 120 V, 60 HZ
101 W
40 watts per channel minimum RMS into 6
ohms from 60 Hz to 20 kHz with no more
than 10 /0 total harmonic distortion
MD lN/AUX (Analogr1); 500 mV/47 kohms
Auxiliary (Analogr2); 500 mV/47 kohms
Auxiliary (Digital); optical
Auxiliary; 2.0 V/1 kohm
Headphones; 16 , 50 ohms
(recommended; 32 ohms)
Speakers; 6 ohms
Input terminals:
Output terminals:
Dimensions: Width; 91/2" (240 mm)
Height; 1371/8" (332 mm)
Depth; 1243/16" (325 mm)
Weight: 19.0 lbs. (8.6 kg)
0 Speaker section
Type: 3rway type [6" (150 mm) woofer, 271/2" (65
mm) tweeter and super tweeter]
Maximum input power: 100 W
Rated input power: 50 W
Impedance: 6 ohms
Dimensions: Width; 871/8" (205 mm)
Height; 1371/8" (332 mm)
Depth; 1273/4" (323 mm)
Weight: 9.3 lbs. (4.2 kg)/each
Specifications for this model are subject to change without
prior notice.