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SERVICE MANUAL
SUPER AUDIO CD PLAYER
Effective : September, 2004 8C0365
S-0128A
NOTES
PC boards shown are viewed from parts side.
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.
CONTENTS
1 SPECIFICATIONS
2
2 ADJUSTMENTS
3
3 EXPLODED VIEWS AND PARTS LIST
4
4 PC BOARDS AND PARTS LIST
10
5 INCLUDED ACCESSORIES
22
For U.S.A.
1 SPECIFICATIONS
2
General
System ......................................................................SACD and CD
Power supply ........................................................AC 120 V, 60 Hz
Power consumption ..............................................................40 W
Weight................................................................25 kg (55-1/16 lb)
External dimensions (W x H x D) ..................442 x 153 x 353 mm
(17-3/8" x 6" x 13-7/8")
Operating temperature ................................................+5°C - +35°C
Operating humidity..........................5% to 85% (no condensation)
Storage temperature ................................................20°C - +55°C
Audio output (Analog Audio)
Jacks ......................................................XLR jacks (2 channel) x 1
RCA jacks (5.1 channel) x 1
Maximum Output level (1 kHz, full scale) ..............2.5 Vrms (RCA)
2.3 Vrms (XLR)
Nominal Output level (1 kHz, full scale 20dB) ..250 mVrms (RCA)
230 mVrms (XLR)
Frequency response ......................................5Hz - 58 kHz (SACD)
Signal-to-Noise Ratio (S/N)..........................112 dB (SACD, 1 kHz)
Dynamic range ............................................106 dB (SACD, 1 kHz)
Total harmonic distortion............................0.001% (SACD, 1 kHz)
Audio output (Digital Audio)
OPTICAL ..........................Optical digital jack x 1, 15 to 21 dBm
COAXIAL ............................................RCA jack x 1, 0.5 Vp-p/75
Word Synchronization input format
Jack ........................................................................................BNC
Input level ................................................................4.5 Vp-p/75
The main unit can accept and synchronize to the following
frequencies received from external devices:
44.1kHz, 88.2kHz, 176.4kHz
Accessories
Power cord x 1
Remote Control Unit (RC-941) x 1
Batteries (AA, R6, SUM-3) x 2
Screwdriver x 1
Felt x 3
Warranty card x 1
Owner's manual x 1
· Design and specifications are subject to change without notice.
· Weight and dimensions are approximate.
2 ADJUSTMENTS
3
2-1 Sled Offset Adjustment
1. Connect the probe of oscilloscope to pin 1 (SLCNT) of P205 on
CORE PCB, and the probe earth to pin 2 (SL18V).
2. Set the oscilloscope's voltage range to DC100mV, and the time
calibration to 10mS.
3. Adjust potentiometer R232 for a potential difference of 0V
between pins 1 and 2.
2-2 Sled Gain Adjustment
1. Connect the probe of oscilloscope to pin 3 (H1OUT) of P205 on
CORE PCB, and the probe earth to pin 2 (SL18V).
2. Set the oscilloscope's voltage range to AC200mV, and the time
calibration to 10mS.
3. Press the DF range button on RC-668 (P/No. E00380000A), a
remote controller for VRDS-8, to activate the sled, and adjust
potentiometer R235 for a sine wave output of 1Vp-p at pin 3.
Pressing the DF range button again beings the unit back to the
normal mode.
R232
R235
CORE PCB
P205 (Bottom Side)
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
: GH20707A2A
Manufacturer
: SHARP CORPORATION
Laser output
: Less than 1mW on the objective lens
Wavelength
: 788±5 nm (CD)
1 For U.S.A.
3 EXPLODED VIEWS AND PARTS LIST
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