Sony HCD-S20 Service Manual page 20

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HCD-S20

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:

•

: 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.

HCD-S20

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.

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.

• Circuit Boards Location

KEY board

VFD board

USB board

POWER board

MAIN board

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