Sony cfd 515 service manual
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Page 1
CFD-515
SERVICE MANUAL
US Model
Canadian Model
UK Model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DiSTORTION
With 3.2»ohm loads. both channel driven from 150
- 10,000 Hz; rated 2 W perchannel-minimum RMS
power, with no more than 10 % total harmonic dis-
tortion in AC operation,
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAIAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 w
(This output is the value measured at a distance
of about 200 mm from the objective lens sur-
face on the optical pick-up block with 7 mm
aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20-20000 Hz +l/-2 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM: 87.6-108 MHz (US, Canadian)
87.6-107 MHz (UK)
AM: 5304.710 kHz (US. Canadian)
531-1,602 kHz (UK)
Model Name Using Similar Mechanism
CFO-550
CD
Section
CD Mechanism Type
KSM-21 SBAN
Optical Pick-Up Name
KSS-2133
TAPE
Model Name Using Similar Mechanism
CPS-208
Section
Tape Transport Mechanism Type
MF-311
SPECIFICATIONS
Aerials
FM: Telescopic aerial
AM: Built-in ferrite bar aerial
Cassette-comer section
Recording system
4-uack 2 channel stereo
Fast winding time
Approx. 115 3 (see) with Sony cassette 060
Frequency response
TYPE I (normal): 70« l0,000 Hz
General
Speaker
Full range: 10 cm dia, 3.2 ohms, cone type (2)
Neeter: 2 cm (2)
Outputs
Headphones jack (stereo minijack)
For 16-68 ohms impedance headphones
Maximum power output
23 W + 2.3 W
Power requirements
120V AC. 60 Hz (US. Canadian)
230-240 V AC. 50 Hz (UK)
9 V DC, 6 R20 (size D) batteries
Power consumption
AC 20 W
Battery life
Sony alkaline LRZO: approx. 19 h
Tape playback
Sony R20P: approx. 7.5 h
Sony alkaline LRZO: approx. 12 h
CD playback
Sony RZOP: approx. 2.5 h
Sony alkaline LR20: approx, 4.5 h
Dimensions
Approx. 52M53x256 mm (w/h/d)
(20 I2 x [0 x 10]: inches) (incI. projecting pam)
Mass
Approx 5.8 kg (l2 lb. I3 02) (incl. batteries)
Supplied accessory
AC power cord (1)
Design and specifications are subject to change
without notice.
CD RADIO CASSETTE-BORDER
SONXC.
Page 2
Focus Bias Adjustment
This adjustment is to be done when the optical pick-up block is
replaced,
Procedure:
Oscilloscope
(DC range)
CD MAIN boa/d
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WmH%-fl+
WNQm-m
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Put the set into test mode.
2. Connect oscilloscope between TP (RF) and 1'? (VC).
3. Press PM and H4 buttons to move the optical pick-up to the
center. (Move the optical piek
4. Insert disc (YEDS-lS) in and press HI button,
5. Press the HI button. (Tracking Servo ON)
6. Adjust RV701 so that the oscilloscope waveform is as shown in
the figure below. (eye pattern)
A good eye pattem means that the diamond shape (0) in the
center of the waveform can be clearly distinguished.
7 i Release test mode after adjustment is completed
(
- RF signal reference waveform (eye pattern)
ii
VOLT/DIV .' 0.2 V
TIME/DIV .' 500 n5
9 9 O 9 9 9 9 O
\\\\'i"iiiti);t
\ttififiiiWW
MM) t
.a;.... A
When observing the eye pattern, 59! the oscilloscope for AC
range and raise venical sensitivity.
Adjustment Location: CD MAIN board (See page 24.)
Focus/Tracking Galn Adjustment
A frequency responce analyzer is necessary in order to perform this
adjustment exactly,
However. this gain has a margin, so even if it is slightly off. there is
no problem. Therefore, do not perform this adjustment,
Focus/tracking gain determines the pick-up follow-up (vertical and
horizontal) relative to mechanical noise and mechanical shock when
the 2-axis device operate
However, as these reciprocate, the adjustment is at the point where
both are satisfied
' When gain is raised, the noise when the 2-axis device operates
increases.
~ When gain is lowered, mechanical shock and skipping occurs more
easily.
- When gain adjustment is off. the symptoms below appear.
Galn
Focus Tracking
Symptoms
- The time until music starts becomes
longer for I-tHl on automatic
selection. low
(I44 , DH buttons pressed.)
(Normally takes about 2 seconds)
low or high
- Music does not start and disc
continues to rotate for I-tHI or
automatic selection,
04 , FM buttons pressed.)
- Sound is interrupted during PLAY,
Or time counter display stops - low
progressing.
- low
t More noise during 2-axis device
operation, high h'gh
-22-