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SAT-A55P/B55P
3-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS INFORMATION
3-1. CIRCUIT BOARDS LOCATION
• All capacitors are in µF unless otherwise noted.
pF: mmF 50 WV or less are not indicated except for electrolytic and
tantalums.
• All electrolytics are 50V unless otherwise specifi ed.
• Indication of resistance, which does not have one for
rating electrical power, is as follows:
Pitch:
5mm
Rating electrical power 1/4W (CHIP: 1/10W)
• All resistors are in ohms.
KW = 1000W • MW = 1000KW
•
:
nonfl ammable resistor
•
: fusible
resistor
•
:
internal
component
•
: panel designation and adjustment for repair
•
:
earth-ground
•
:
earth-chassis
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• All voltages are in Volts
• Readings are taken with a 10M ohm digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production tolerance.
• *
: cannot be measured
•
: B + Line
•
-----
: B - Line
•
: Signal
path
SECTION 3: DIAGRAMS
A Board
SC2
Board
HB Board
Summary of Contents for DirecTV SAN-18D3
Page 117: ...75 Other Information Notes ...
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