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GENERAL RADIO COMPANY
5.6 TROUBLE-SHOOTING PROCEDURE.
Table 5.2 should
present or absent. Simply determine the vertical column corres-
enable the user to pinpoint t h e circuit in which the trouble e x i s t s .
ponding to the conditions present on the instrument, and refer to
Columns 1 through 13 contain various s e t s of conditions, in
the information in the lower part of that column.
which indications
as
listed in the left-hand column are either
t.
300-v output
not regulated,
too high.
u. 300-v output
not regulated,
too low.
POWER SUPPLY
(Cont.
)
Check V602 and V603. Component may be causing V602 to be
nonconducting. Check V601 for a grid cathode short.
Check V601 and the +450-v supply. After replacing any tubes
in regulator, check output voltage and compensation in accord-
ance with paragraph 3.7.3.
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