Sony NW-A808 User Manual
NW-A805/A806/A808/NWZ-A815/A816/A818
19
19
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.
However, the patterns of intermediate-layers have not been
included in diagrams.
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
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
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
conditions.
no mark : PLAY BACK
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Signal path.
F
: AUDIO
L
: VIDEO
•
Abbreviation
FR
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:
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.