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SERVICE MANUAL
CD Rewritable Deck
Effective : June, 2000
S-0024A
CONTENTS
1 SPECIFICATIONS
2
2 ADJUSTMENTS AND CHECKS
3
3 EXPLODED VIEWS AND PARTS LIST
6
4 PC BOARDS AND PARTS LIST
8
5 INCLUDED ACCESSORIES
15
NOTES
PC boards shown are viewed from parts side.
Parts marked with * require longer delivery time.
The parts with no reference number or no parts number in the
exploded views are not supplied.
As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
£
Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
Parts of [ ] mark can be used only with the version designated.
£
1 SPECIFICATIONS
2
Media type ............CD-RW and CD-R for Digital audio (record and
playback), CD (playback only)
Frequency converter input sampling frequency ........32kHz~48kHz
Recording sampling frequency ..........................................44.1kHz
Frequency response ....................................................20Hz~20kHz
(playback: ±0.5dB, recording: ±1dB)
Signal to noise ratio ............................More than 97dB (playback)
More than 92dB (recording)
Dynamic range ....................................More than 94dB (playback)
More than 92dB (recording)
Total Harmonic Distortion ................Less than 0.004% (playback)
Less than 0.005% (recording)
Wow & flutter ..........................................................Unmeasurable
Audio Input Sensitivity/Impedance ..LINE : -10dBV (316mV)/33k
MIC : -50dBV (3.16mV)/47k
Output Level/Impedance..................LINE : -10dBV (316mV)/800
PHONES : -35mW/32
Maximum output level ....................................LINE :+6dBV (2.0V)
Power supply........120/230 V AC, 50/60Hz (General export model)
230 V AC, 50Hz (Europe model)
Power consumption ..............................................................27 W
Dimensions (W x H x D) ................................435 x 102 x 312 mm
(17-1/8" x 4" x 12-5/16")
Weight (Net) ................................................................5.5kg (12lb)
Standard Accessories..................Audio signal connection cord x 2
Remote control unit x 1
Batteries (AA,R6,SUM-3) x 2
Improvements may result in specification or feature changes
without notice.
SAFETY INFORMATION
This product has been designed and manufactured according to FDA regulations
"title 21, CFR, chapter 1, subchapter J, based on the Radiation Control for Health
and Safety Act of 1968", and is classified as a class 1 laser product. There is no
hazardous invisible laser radiation during operation because invisible laser radiation
emitted inside of this product is completely confined in the protective housings.
The label required in this regulation is shown 1.
OCAUTION
USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF PROCEDURES
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE.
Optical pickup:
Type
: KRS-202A or KRS-220B
Manufacturer : SONY Corporation
Laser output : Less than 0.1mW (Play) and 32mW (Record)
on the objective lens
Wavelength
: 777 - 787nm
1 For U.S.A.
2 ADJUSTMENTS AND CHECKS
3
2-1 Test Mode
In Standby mode, press and hold the STOP + PLAY + PAUSE keys
simultaneously for 5 seconds. The display will show the model
name and the system controller's version number, and the test
mode is initiated.
Press the STOP key to exit from the test mode and return to the
standby mode.
2-1-1 Front key check
1. Press the PLAY key to enter the front key check mode.
2. The display shows the name of each key to be checked; press
the corresponding key.
When the check result of the key is OK, the display shows
another key name. When the result is No Good, the display
continues to show the same key name.
3. When all of the keys have been checked, the display shows
"timer
play
". Follow this instruction by checking the
TIMER slide switch operation.
4. The display finally shows "dial50". Check the MULTI JOG
dial so that the displayed figure increases when the dial is
rotated clockwise and decreases when it is rotated
counterclockwise.
5. Press the PLAY key to exit from the front key check mode and
return to the Version number display mode.
2-1-2 Display check
1. Press the DISPLAY key to enter the display check mode.
2. Press DISPLAY key a few times and ensure that each press
lights the display blocks one after another.
3. When all the indicators are lit, press the DISPLAY key to exit
from the display check mode and return to the Version number
display mode.
2-1-3 EEPROM default setting
1. Press the ERASE key.
This writes the default values in the EEPROM and checks the
written data. When the default data is written correctly, the
display shows "EEPROM
OK
!!
". If not, it shows
"EEPROM NG !!".
2. Press the ERASE key again to return to the Version number
display mode.
2-1-4 Total recording time display
1. When the RECORD key is pressed, the display shows the time
in which the pickup outputs the recording power (in the unit of
hour).
2. Press the RECORD key again to return to the Version number
display mode.
timer
play
dial50
EEPROM
OK
!!
EEPROM
NG !!
4
ITEM
TEST DISC
PLAYBACK SIGNAL
SPECIFICATIONS
REMARKS
1. Playback level
MCD-111
Track 2
1kHz, 0dB
2.0 0.5V
2. Playback distortion
MCD-111
Track 2
1kHz, 0dB
0.005% or less
400Hz HPF
22kHz LPF
4. Playback S/N ratio
MCD-111
Track 7
dB
94dB or better
22kHz LPF
IEC-A
5. Playback channel
separation
MCD-111
Track 8, 10
1kHz, 0dB
80dB or better
22kHz LPF
IEC-A
6. Emphasis effect
MCD-111
Track 13
16kHz,
20dB
20 1dB
2-2 Audio Check
2-2-1 Playback performance
Measurement point: LINE OUT
Mode: play
3. Playback frequency
response
MCD-111
Track 3 6
20Hz 20kHz, 0dB
0 1dB
Reference level: 1kHz
5
2-2-2 Monitor performance
Measurement point: LINE OUT
Mode: record monitor
ITEM
INPUT SIGNAL (LINE IN)
SPECIFICATIONS
REMARKS
1. Specified input level
1kHz,
6dBV
6dBV 2dB
Rotate the REC LEVEL controls to positions at
which the "OVER" segments of the level meter is
just about to light.
Do not alter the value after setting.
2. Monitor distortion
1kHz,
6dBV
0.01% or less
400Hz HPF
22kHz LPF
3. Monitor frequency
response
20Hz 20kHz,
6dBV
0 1dB
Reference level: 1kHz
5. Monitor channel
separation
L (R) ch: 1kHz,
6dBV
R (L) ch: No signal
65dB or better
Ratio between the L CH and R CH outputs.
22kHz LPF
IEC-A
7. MIC input sensitivity
MIC:
1kHz,
50dBV
6dBV 3dB
MIC LEVEL: MAX
6. PHONES output level
1kHz,
6dBV
PHONES:
1.1V or more
PHONES LEVEL: MAX
Load: 32
4. Monitor S/N ratio
88dB or better
22kHz LPF
IEC-A