Sony Ericsson CDP-CX220 service manual Note on Schematic Diagram, Note on Printed Wiring Boards

Models: CDP-CX220

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Note on Schematic Diagram:

7-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)

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.

C : panel designation.

Note:

Note:

The components identi-

Les composants identifiés par

fied by mark !or dotted

une marque !sont critiques

line with mark !are criti-

pour la sécurité.

cal for safety.

Ne les remplacer que par une

Replace only with part

piéce portant le numéro

number specified.

spécifié.

 

 

U : B+ Line.

V : B– Line.

H : adjustment for repair.

Voltages and waveforms are dc with respect to ground under no-signal conditions.

no mark: PLAY

Voltages are taken with a VOM (Input impedance 10 MΩ). 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. J : CD c : digital out

Abbreviation

AED : North European

AUS : Australian model.

CND : Canadian model.

E2 : 120 V AC Area in E model.

E3 : 240 V AC Area in E model.

SP : Singapore model.

Note on Printed Wiring Boards:

X : parts extracted from the component side.

Y : parts extracted from the conductor side.

¢ : internal component.

b: Pattern from the side which enables seeing.

Note on Printed Wiring Boards: : Solder bridge.

Indication of transistor.

C – 23 –

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q

 

 

These are omitted.

 

 

 

 

 

B E

Q

B C E

These are omitted.

Q

B C E

These are omitted.

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Sony Ericsson CDP-CX220 service manual Note on Schematic Diagram, Note on Printed Wiring Boards