Schematic Diagram - Panel (Sw) Board - Sony SA-WA10R Service Manual

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Operating instructions (2 pages)

Table Of Contents

Table of Contents

SA-WA10R

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.

•

: 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.

These are omitted.

• Waveforms

– MAIN (SW) Board –

IC602 6 (XT2)

IC705 qs (DAT-2)

3.4 Vp-p

82 ns

30.4 s

2 V/DIV, 20 s/DIV

2 V/DIV, 50 ns/DIV

IC602 9 (X2)

IC706 4 (OUT_)

3 Vp-p

64 ns

2 V/DIV, 50 ns/DIV

2 V/DIV, 10 ns/DIV

SA-WA10R

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.

• 2 : Nonﬂ ammable 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.

• 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.

: AUDIO

5.6 Vp-p

4.6 Vp-p

20.6 ns

4-2.