HCD-HPX9 - Sony Audio Service Manual (repair manual). Page 2

2

Note on Schematic Diagram:
• 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

specified.

•         f

: internal component.

• 2 : nonflammable resistor.
• 5 : fusible resistor.
• C : panel designation.

• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground un-

der no-signal conditions.

• Voltages are taken with a 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

: TUNER (FM/AM)

E

: TAPE PLAY

a

: TAPE REC

J

: CD PLAY

L

: AUX IN

• Abbreviation

CND

: Canadian model

EA

: Saudi Arabia model

Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•   W : indicates side identified with part number.
•         f

: internal component.

•

: Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

C

B

These are omitted.

E

Q

B

These are omitted.

C E

• Indication of transistor.

The components identi-
fied by mark 0  or dot-
ted line with mark 0 are
critical for safety.
Replace only with part
number specified.

Les composants identifiés
par une marque 0 sont cri-
tiques pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.