PINEAPPLE TECHNOLOGY, INC.
VTX2KW-A Operating and Service Manual
V — THEORY OF OPERATION
Page 9
THE METER SELECTOR SWITCHES
The PAS10 is used to select the appropriate PA Module (V600LDV2) for performance display on the ADP500. PA
designations are PA1 starting from the top row going left to right with PA4 being on the right side in the second
row down when viewed from the front of the transmitter.
The Rotor Switch on the ADP500 is the detail selector for the multi-meter. The various positions are defined as
follows:
PA1 THRU PA5 ................................................... Reads PA pallet currents as selected
Typical reading in INHIBIT MODE 1.5 TO 2.2 A
Typical reading 5-7
A for PA1
-
PA4
with normal picture or 50% APL test waveform
Typical reading 2-3 A for P
A5 with normal picture or 50% APL test waveform
PA6 ..................................................................... NO CONNECTION
PS VOLTS ........................................................... Reads DC Voltage applied to PA Stages
Typical reading would be +29 to 32 VDC
P FWRD ............................................................... Reads PA output power in P-Sync percentage of rating.
Full power reading would be 100%
P RFLD ................................................................ Reads PA output power being returned from the load and
displayed as a percentage of forward power.
Typical reading would be < 5% indicated.
P AURAL ............................................................. Reads the AURAL POWER component as a percentage of
forward power. Typical reading would be 10%
AUX 1 & AUX 2 ................................................. not used in this configuration
REFER TO SECTION VI.H. FOR SCHEMATICS AND PARTS LIST (
page
33
)
E. REMOTE MONITOR AND CONTROL WITH ABS
This equipment is OPTIONAL and
may be
required
to ensure remote control operational capability
.
The Remote Monitor is used to monitor the operational status of the transmitter and will allow the operator to turn
RF on or off and adjust power levels. The following items are monitored or controlled:
1. Transmitter on/off function
2. Power output level monitor and adjustment.
3. AC Line voltage status. With ABS you can be notified if there is a power failure at the side.
4. Various other custom options are available. Specify these at the time the transmitter is purchased and they will
be included if possible.
Remote monitoring requires a Phone line connection. Information can be accessed via a PC Terminal or via a
‘VOICE COMMAND LINE’. Either option is standard with this system.
The Auxiliary power unit requires a battery connection. A common car battery (12 VDC) can be used with a char-
ger as an ABS. This will run the Monitor and provide access to transmitter status for several hours.