Sony XR-C4120 Car Stereo System User Manual


 
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SECTION 6
DIAGRAMS
Note on Printed Wiring Board:
X : parts extracted from the component side.
Y : parts extracted from the conductor side.
b : 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 µF unless otherwise noted. pF: µµF
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.
C : panel designation.
U : B+ Line.
Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : MW (LW)
〈〈 〉〉 : TAPE PLAYBACK
: Impossible to measure
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.
F : FM
f : MW (LW)
E : TAPE PLAYBACK
L : BUS AUDIO IN
6-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS