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Heathkit SB-104 - Page 144

Heathkit SB-104
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Power Amplifier Circuit Board
TROUBLESHOOTING CHART
Refer to the "Voltage Chart"
and
"X-Ray View" (fold-out
from this page).
SYMPTOM
No RF output.
NOTE:
Heath part numbers that correspond to the circuit
component numbers will
be
found in
the
Parts
List
starting
on Page
151
of this Manual.
POSSIBLE
CAUSE
1.
Transistors. See "P.A. Transistor
Check" on the fold-out.
2.
Inductors (coils) connected wrong.
3.
No
13.8V
at plns
5
and
6.
4.
No
.7V
at pin
1.
5.
Pins
2
and
4
not grounded.

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