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Sony TA-SA300WR Service Manual page 11

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THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
: Internal component.
f
: 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
(Conductor Side)
from the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted.
B
E
B
C E
These are omitted.
• Abbreviation
AUS
: Australian model
CND : Canadian model
IT
: Italian model
TA-SA300WR
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 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
specifi ed.
: internal component.
f
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : panel designation.
Note: The components identifi ed by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specifi ed.
Note: Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifi é.
• A : B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
• Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
• Abbreviation
AUS
: Australian model
CND : Canadian model
IT
: Italian model
• Waveforms
– WLK4 MAIN Board –
1
IC100 7 (Xout)
1.6 Vp-p
50 ns
1 V/DIV, 20 ns/DIV
IC105 qf (XFSOOUT)
2
3.3 Vp-p
21 ns
2 V/DIV, 10 ns/DIV
IC105 eh (XFSIIN)
3
3.6 Vp-p
81.5 ns
2 V/DIV, 50 ns/DIV
IC105 rk (XFSOIN)
4
3.7 Vp-p
21 ns
2 V/DIV, 10 ns/DIV
IC107 2 (A)
5
3 Vp-p
20 ns
2 V/DIV, 10 ns/DIV
11
11
TA-SA300WR
Ver. 1.1

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