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Page Title:
Repair Procedures |
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 TM 11-6625-922-15
Item No.
Symptom
Possible trouble
Corrective measure
7
dbm/% MODULATION
a. Input amplifier circuit defective.
a. Replace assembly A6.
meter does not indicate
b. Front panel controls or wiring de-
b. Refer to higher category of
correct level (para 4-4,
fective.
maintenance.
sequence 11ad).
8
Receive frequency is not
a. Input amplifier circuit defective.
a. Replace assembly A6.
same as transmit frequency
b. Front panel controls defective.
b. Refer to higher category
(para 4-4, sequence 11 e).
a
maintenance.
9
DELAY ZERO ADJ control
a.
Demodulator circuitry defective.
a.
Replace assembly A6.
does not give proper indi-
b.
Low-pass filter circuitry defective.
b.
Replace assembly A7.
cation on DELAY meter
c.
Delay output circuitry defective.
c.
Replace assembly A8.
(para 44, sequence
d.
Delay logic not functioning.
d.
Replace assembly A9.
11ai).
e.
Front panel controls defective.
e.
Refer to higher category of
maintenance.
10
DELAY meter does not give
a. Delay output circuit defective.
a. Replace assembly A8.
proper indication (para
b. Delay logic not functioning.
b. Replace assembly A9.
4-4, sequence 11ak).
c. Front panel controls defective.
c. Refer to higher category of
maintenance.
supplied in the TS-2669/GCM. When replacing the
4-7. Repair Procedures
assembly, be certain that the sides of the card are
To remove a plug-in printed circuit assembly, remove
properly positioned in the card guides.
the top cover of the TS-2669/GCM by removing the
screws. Remove the assembly with the card puller
4-5
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