10
D-NF610/NF611
SECTION 5
DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF 50 WV
or less are not indicated except for electrolytics and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise speci-
fied.
•
%
: indicates tolerance.
•
C
: panel designation.
•
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 DC IN jack (J401).
• Voltages and waveforms are dc with respect to ground in playback
mode.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
F
: FM
J
: CD PLAY (ANALOG OUT)
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
• Waveforms
600mVp-p
1
TEST POINT (IC601,
if
)
200mV/DIV, 400ns/DIV
2.0Vp-p
1V/DIV, 40ns/DIV
2
IC601
rk
(XTAO)
59ns
2.6Vp-p
1V/DIV, 2
µ
s/DIV
3
IC403
ef
(SYNC)
5.7
µ
s
2.8Vp-p
500mV/DIV, 20ns/DIV
4
IC701
e;
(XTAL)
44ns
1V/DIV, 40ns/DIV
5
IC801
wk
(XIN)
2.8Vp-p
119ns
500mV/DIV, 4
µ
s/DIV
6
IC3
uf
(X_O)
1.3Vp-p
13.3
µ
s
1V/DIV, 100ns/DIV
7
Q86 (collector) (FM)
3.5Vp-p
273ns
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.)
• MAIN board is multi-layer printed board. However, the pat-
terns of intermediate-layer have not been included in the dia-
gram.
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Side A)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Side B)
the parts face are indicated.
Note:
The components identified by
mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
✩
When IC803 is damaged, replace the MAIN board.
