User's Manual

PINEAPPLE TECHNOLOGY, INC.
LTX100U/VL/VH Operating and Service Manual
lV -- TRANSMITTER TURN-ON PROCEDUR
E
lV --- TRANSMITTER TURN-ON PROCEDURE (Page 1 of 2
)
See the previous section on installation before proceeding with this section. Improper installation of th
e
transmitter can cause serious damage to the equipment or operating personnel and may voi
d
manufacturers warranty. Initial turn on and check out is very important for the broadcast engineer t
o
learn how to setup and operate the transmitter. Following these steps will ensure long and reliable operation
:
1. Check the transmitter output load or antenna for proper installation and connection to the transmitter
.
2. Inspect the transmitter front and back to check for broken items or lose fitting items. These mus
t
be replaced or properly secured before turning the transmitter on. Pay special attention to all R
F
connectors including transmit coaxial cable and antenna.
3. Check the AC breaker and on/off switches to ensure that all are in the OFF position.
4. Verify the switch on the power strip at the back of the cabinet and the power switch on the front of the
LTX Mainframe are in the OFF position. Plug in the AC power cord to a nearby 110 AC electrica
l
connector with associated, appropriately sized, circuit breaker
.
5. On the MA1000 Modulator, turn the Output Power potentiometer fully counter clockwise to minimum.
6. Turn-on the AC Power switch located on the power strip at the rear of the LTX100U/VL/VH cabinet.
7. Locate and turn on the front panel breaker found on the LTX Mainframe and set the XMT
R
switch
to the ON position.
MAKE THE FOLLOWING OBSERVATION
S
METER READINGS TYPICAL
DC SUPPLY VOLTAGE 32 VDC
PA1 DRIVER CURREN
T
1.7 AMPS ± 20%
PA2 FINAL CURREN
T
2.7 AMPS ± 20%
PA3 FINAL CURREN
T
1.3 AMPS ± 20%
RF OUTPUT POWER 10 TO 50%
RFL'D POWER < 10%
NOTE STATUS LIGHTS
FAN GREEN
TEMP GREEN
+DC GREEN
THE FAN SHOULD BE MAKING SOME NOISE
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