TM
11-6625-3041-30/T0
33A1-8-908-12
2-6. SG-1139 CHECK PROCEDURE (CONT)
q Set
controls as
Step Station
follows :
3
Clock
Indicater
POWER . . . ON
TIMING . . STA CLK
Press and hold LAMP TEST pushbutton:
Green STA CLOCK
indicator must
light. If it
does, release
LAMP TEST push-
button and proceed
to step 5.
This step checks the following:
Multi VDC card . . . . +5V supply
-5V supply
-12V supply
Transmit 1 card . . . STA CLOCK lamp driver
Case Assembly . . . . STA CLOCK indicator lamp
If STA CLOCK indicator is lit before LAMP TEST is pressed:
Possible cause is Multi VDC card A1 (-12V supply defective).
Replace (refer to TM 11-6625-3041-12), and repeat step 3.
IF STA CLOCK indicator does not light:
Possible cause is Transmit 1 card A3. Replace (refer to
TM 11-6625-3041-12), and repeat step 4.
If replacement Multi VDC card A1 does not provide proper indi-
cation, possible cause is STA CLOCK indicator lamp. Replace
(refer to para 2-13), and repeat step 3.
