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NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side B)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side A)
the parts face are indicated.
• MAIN board is multi-layer printed board. However, the pat-
terns of intermediate-layer have not been included in the dia-
gram.
SECTION 5
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in F unless otherwise noted. pF:
less are not indicated except for electrolytics and tantalums.
• All resistors are in
and
1
/
W or less unless otherwise specified.
4
•
%
: indicates tolerance.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
with mark 0 are critical for safety.
Replace only with part number specified.
• A : B+ Line.
• Total current is measured with CD installed.
• Power voltage is dc 4.5 V and fed with regulated dc power supply
from terminals (J401).
• Voltages and waveforms are dc with respect to ground in playback
mode.
no mark : CD PLAY
*
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M ).
Voltage variations may be noted due to normal production toler-
ances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production toler-
ances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD
c : DIGITAL OUT
• Abbreviation
EE : East European model
• WAVEFORMS
1
IC601 if RFAC
100mV/DIV, 400ns/DIV
F 50 WV or
500 mVp-p
5
IC701 e; XTAL
1V/DIV, 20ns/DIV
3.0 Vp-p
44ns
13
13
2
3
IC601 rk XTAO
IC801 wk XIN
1V/DIV, 20ns/DIV
1V/DIV, 40ns/DIV
2.1 Vp-p
3.1 Vp-p
59ns
118ns
D-NE700
4
IC403 ef SYNC
1V/DIV, 2us/DIV
2.5 Vp-p
5.7us
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