– 17 –
– 18 –
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
specified.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•
U
: B+ Line.
•
V
: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER (FM)
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
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.
F
: TUNER (FM)
g
: VIDEO
• Abbreviation
AUS
: Australian model
CND : Canadian model
MY
: Malaysia model
SP
: Singapore model
Note:
The components identi-
fied by mark
!
or dotted
line with mark
!
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
!
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
5-4. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
•
Indication of transistor.
• Waveforms
– MAIN Board –
1
IC1
!£
(OSCI)
2
IC300
$•
(OSC1) (Change DOLBY Mode)
B
These are omitted.
C
E
Q
B
These are omitted.
C
E
Q
3
IC301
$º
(LC-INE)
4
IC301
$¡
(CR-OT)
2.7 Vp-p
4.332 MHz
0.4 Vp-p
32.5
µ
s
3.1 Vp-p
125 ns
5.4 Vp-p
4.19 MHz
1.2 Vp-p
122 ns
– DISPLAY Board –
1
IC201
#∞
(X2)
