Headphones jack (stereo minijack):
For 8 - 32 Ω impedance headphones
Speaker terminals: For supplied 6 Ω
impedance speaker
Maximum power output
100 W
Power requirements
For personal component system:
230 V AC, 50 Hz
For remote control: 3 V DC, 2 R6 (size AA)
batteries
Power consumption
AC 110 W
Dimensions
Player: approx. 285 × 322 × 408 mm (w/h/d)
(11
Speaker: approx. 200 × 316 × 230 mm (w/h/d)
Mass
Player: approx. 7.7 kg (16 lb. 16 oz.)
Speaker: approx. 2.95 kg (6 lb. 8 oz.)
Supplied accessories
Remote control (1)
FM lead aerial (1)
AM loop aerial (1)
1
⁄8 inches) dia.,
1
⁄4 × 12 3⁄4 × 16 1⁄8 inches)
7
⁄8 × 12 1⁄2 × 9 1⁄8 inches)
(7
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
Flexible Circuit Board Repairing
• Keep the temper ature of the soldering iron around 270˚C during
repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdo wn and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
Design and specifications are subject to change without
notice.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
SERVICE NOTE
When the CD block is going to be inspected, be sure to
connect beforehand the jig (J-2501-020-A) between the CD
board (CNP706) and the DISPLAY board (CNP802).
2
TABLE OF CONTENTS
1. GENERAL
Displaying the spectrum analyzer ...........................................5
Setting the clock ...................................................................... 5
2. DISASSEMBLY
2-1. Side Plate............................................................................. 6
2. Turn the adjustment screw for the maximum output levels. If
these levels do not match. Turn the adjustment screw until both
of output levels match together within 1 dB.
11
y
3. Phase Check
Mode: playback
test tape
P-4-A063
(6.3 kHz, –10 dB)
L-CH
set
L-CH
32 Ω
osilloscope
VH
Tape Speed Adjustment DECK A DECK B
Procedure:
Mode: Playback
test tape
WS-48B
(3 kHz, 0 dB)
set
digital frequenc
counter
0000
32 Ω
R-CH
in phase45˚90˚135˚180˚
32 Ω
R-CH
J901 (phones)
Screen pattern
goodwrong
Note: Finish the screw adjustment with a turn in the clockwise
direction.
After the adjustment, lock the adjustment screw.
Adjustment Location: playback head (deck A)
record/playback head (deck B)
J901 (phones)
Adjustment V alue: normal tape speed
Adjust the tape speed adjustment control inside motor, so that the
frequency counter reading becomes 3,000 Hz.
Specification V alue:
Digital frequency counter
2,910 – 3,090Hz
Frequency difference between the beginning and the end of the tape
should be within 1.5% (45 Hz).
Adjustment Location:
CASSETTE DECK
adjustment screw
Tape speed adjustment
control inside motor
Sample Value of Wow and flutter
W.RMS (JIS) less then 0.3%
(test tape: WS-48B)
12
TUNER SECTION 0 dB = 1 µV
)
• FM Section
Setting:
BAND switch: FM
FM RF signal
generator
antenna terminal
0.01 µF
set
22.5 kHz frequency
deviation by 1 kHz signal
Output level : as low as possible
FM FREQUENCY COVERAGE
CHECK
Frequency Display87.5 MHz108 MHz
Reading on Digital voltmeter1.65 ± 0.15V4.0 ± 0.2 V
Adjustment Part<confirmation> <confirmation>
FM TRACKING CHECK
Adjust for a maximum reading on level meter.
<confirmation><confirmation>
87.5 MHz108 MHz
• AM Section
Setting:
BAND switch: AM
AM RF signal
generator
Put the lead-wire
antenna close to
the AM loop
antenna.
30% amplitude
modulation by 400 Hz signal
Output level : as low as possible
• Connecting Level Meter (FM and AM)
level meter
(range: 0.5-5 V ac
32 Ω
set
J901 (phones)
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
CFT1
450 kHz
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display531 kHz1,611 kHz
Reading on Digital voltmeter0.75 ± 0.15 V5.4 ± 0.2 V
Adjustment PartL5<confirmation>
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3CT1
621 kHz1,404 kHz
Adjustment Location: See page 14.
• Connecting Digital Voltmeter (FM and AM)
digital
voltmeter
100 kΩ
TP1 (VT)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
13
Adjustment Location: main board
G
[MAIN BOARD] (conductor side)
L5
AM FREQUENCY
COVERAGE
adjustment
TP1
(VT)
CT1
AM TRACKING
adjustment
IC1
L3
AM TRACKIN
adjustment
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
SERVICE NOTE
When the CD block is going to be inspected, be sure to
connect beforehand the jig (J-2501-020-A) between the CD
board (CNP706) and the DISPLAY board (CNP802).
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC701 pin #£ (TP RFO) and
GND on Main board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the CD ^ button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.