User's Manual

PINEAPPLE TECHNOLOGY, INC.
DTC25U Operating and Service Manual
lV -- TRANSCODER TURN-ON PROCEDURE
lV --- TRANSCODER TURN-ON PROCEDURE (Page 2 of 3)
Note: Allow the DTC25U to warm up for at least one (1) hour before making the final adjustment.
If transmitter is not warmed up, the output power will require re-adjustment to proper level when it is warm
.
10. Select the FWD Power setting on the rotary switch associated with the front panel meter on the LTX
Mainframe assembly. Slowly adjust the power level setting on the Drake Upconverter while observing the
output power level on the front panel meter until the meter reading indicates 100% output power.
RECORD AND RETAIN THE FOLLOWING OBSERVATIONS FOR FUTURE REVIEW IF NECESSARY
.
METER READINGS TYPICAL
DC SUPPLY VOLTAGE 32 VDC
PA1 DRIVER CURRENT 1.8 AMPS ± 20%
PA2 FINAL CURRENT 3.4 AMPS ± 20%
PA3 FINAL CURRENT 2.8 AMPS ± 20%
RF OUTPUT POWER 90 TO 100%
RFL'D POWER < 10%
NOTE STATUS LIGHTS
FAN GREEN
TEMP GREEN
+DC GREEN
FIG. 1
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