Sony MDX-CA680 service manual Signal path

Models: MDX-CA680

1 64
Download 64 pages 32.71 Kb
Page 27
Image 27

MDX-CA680/CA680X

4-5. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:

X: parts extracted from the component side.

Y: parts extracted from the conductor side.

z : Through hole.

f : 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 from

(Conductor Side)

the pattern face are indicated.

Parts face side:

Parts on the parts face side seen from

(Component Side)

the parts face are indicated.

 

 

Note on Schematic Diagram:

All capacitors are in F unless otherwise noted. pF: ∝∝ F 50 WV or less are not indicated except for electrolytics and tantalums.

All resistors are in and 1/4 W or less unless otherwise specified.

f : internal component.

C : panel designation.

Note: The components identified by mark 0or dotted line with mark 0are critical for safety.

Replace only with part number specified.

A : B+ Line.

Power voltage is dc 14.4V and fed with regulated dc power supply from ACC and BATT cords.

Voltages are taken with a VOM (Input impedance 10 M). 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.

E : MD PLAY

F : FM

f : AM (MW/LW)

L : BUS AUDIO IN

27

Page 27
Image 27
Sony MDX-CA680 service manual Signal path