17
17
6-3.
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.
•
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
(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 µF unless otherwise noted. pF: µµF
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.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• 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 in
color-bar signal input.
• 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
c
: VIDEO
• Circuit Boards Location
G board
D board
E board
B board
A board
C board
PANEL board
Содержание XT-991V
Страница 14: ...14 MEMO ...
Страница 19: ...19 19 XTL 75V 6 5 SCHEMATIC DIAGRAM B Board Page 22 Page 22 ...
Страница 26: ...26 26 XTL 75V 6 13 PRINTED WIRING BOARD G Board See page 17 for IC Circuit Boards Location Page 20 ...
Страница 29: ...29 29 XTL 75V 6 16 SCHEMATIC DIAGRAM PANEL Board Page 23 ...
