Cd Section - Sony CFD-S47 Service Manual
Cd radio cassette-corder
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Also See for CFD-S47:
- Operating instructions manual (36 pages) ,
- Specifications (2 pages) ,
- Limited warranty (1 page)
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Adjustment Location:
TRACKING
ADJUSTMENT
TRACKING
ADJUSTMENT
ADJUSTMENT
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC701 pin #£ (TP RFO) and
GND on CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the ^ 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 (
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
VOLT/DIV : 200 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
CT3
AM
L4
L3
CT1
FM
L1
L2
FM
FREQUENCY
COVERAGE
) in the
RF level :
1.3 ± 0.5 Vp-p
– tuner board (component side) –
TP (VT)
(JW18)
Test Point:
TP (RFO)
– 15 –
TP
(FM ANT)
(CN4)
– CD board (conductor side) –
TP (RFO)
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