Sony PEGA-CC5, Руководство по обслуживанию

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PEGA-CC5
32 32
4-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
• : 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
µ F unless otherwise noted. pF: µµ F
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.
•
A
: B+ Line.
• Power voltage supplies dc 14.4V to jig (J-2502-079-2)
from regulated dc power supply, and supplies to CN1 on
the MAIN board from jig (J-2502-079-2).
no mark : MP3 PLAY
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M Ω ).
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
: AUDIO
j
: NAVI
• Waveforms
– MAIN Board –
1
IC13
ql
(C32KIN)
2
IC14
<zxm
(XOUT)
3.3 Vp-p
30.6 µ s
3.6 Vp-p
86.5 ns