Read Sony XTL-W7000 (serv.man2) Service Manual online
XTL-W7000
2.
DIAGRAMS
•
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.
•
f
: internal component.
•
: 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.
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.
•
f
: internal component.
• C
: panel designation.
• A
: B+ Line.
• B
: B– Line.
• H
: adjustment for repair.
•
Power voltage is dc 14.4V and fed with regulated dc power
supply from BACKUP and ACC cords.
supply from BACKUP and ACC cords.
•
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions. (PAL color bar in-
put)
no mark : VIDEO1
under no-signal (detuned) conditions. (PAL color bar in-
put)
no mark : VIDEO1
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Signal path.
a
: TV (VIDEO)
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