Sony NWZ-A818 MP3 Player User Manual


 
NW-A805/A806/A808/NWZ-A815/A816/A818
1919
NW-A805/A806/A808/NWZ-A815/A816/A818
Note for Printed Wiring Boards and Schematic Diagrams
MAIN board is multi-layer printed board.
However, the patterns of intermediate-layers have not been
included in diagrams.
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 and
1
/
4
W or less unless otherwise
specified.
C : panel designation.
A : B+ Line.
Power voltage is dc 3.7 V and fed with regulated dc power
supply from CN901 pin 1 and pin 2 on the MAIN board.
Voltages are dc with respect to ground under no-signal
conditions.
no mark : PLAY BACK
Voltages are taken with a VOM (Input impedance 10 M).
Voltage variations may be noted due to normal produc-
tion tolerances.
Signal path.
F : AUDIO
L : VIDEO
Abbreviation
FR : French model
Note on Printed Wiring Board:
Y : parts extracted from the conductor 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
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
Ver. 1.2