Note For Printed Wiring Boards And Schematic Diagrams - Sony D-NF400 Service Manual

D-NF400/NF401
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3 7 6 3 1 5 1 5 0
6-3.

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.
• z : Through hole.
• f : Internal component.
• : 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
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
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.
1
• All resistors are in Ω and / W or less unless otherwise
4
specified.
• : Internal component.
f
• C : panel designation.
Note:
Note:
Les composants identifiés par
The components identi-
fied by mark 0 or dotted une marque 0 sont critiques
line with mark 0 are criti-
pour la sécurité.
cal for safety. Ne les remplacer que par une
Replace only with part pièce por tant le numéro
number specified. spécifié.
• A : B+ Line.
• H : adjustment for repair.
• 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
no-signal conditions.
no mark : CD PLAY
〉〉 : MP3 PLAY
〈〈
( ) : FM
[ ] : AM
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J : CD PLAY
d : MP3 PLAY
F : FM
f : AM
• Abbreviation
AUS : Australian model
CND : Canadian model
E13 : 220 - 230 V AC area in E model
E92 : 120 V AC area in E model
EE : East European model
MX : Mexican model
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• Waveforms
– MAIN Board –
1 IC601 w; (CLOK)
2.0 Vp-p
1.9 µ s
2 IC601 es (R8M)
2.1 Vp-p
119 us
3 IC601 rk (XTAO)
Q Q
3 7 6 3
1.4 Vp-p
59 us
4 IC601 if (RFAC)
Approx.
600 mVp-p
5 IC601 <z/v (C176)
2.0 Vp-p
u 1 6 3
.
5.7 µ s
14 14
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2 4
9 9 8
6 IC403 ef (SYNC)
2.0 Vp-p
5.7 µ s
7 IC801 wk (XIN)
2.8 Vp-p
118 us
8 IC3 uf (X_O)
1 5 1 5 0 8 9 2 4
1.0 Vp-p
13.3 µ s
9 Q86 Collector (tuner mode)
3.8 Vp-p
191 ns
q; IC701 e; (XTAL) (MP3 play mode)
m
1.6 Vp-p
c o
44.2 ns
2
9 9
9 8 2 9 9