PINEAPPLE TECHNOLOGY, INC.
VTX2KW-A Operating and Service Manual
A manual for this equipment is provided by the Manufacture and is included in the VTX2KWA package
shipped with the transmitter. This manual is only included if this option was purchased for delivery with
the transmitter.
REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS PACKAGE
F. MODULATOR
The heart of any TV Transmitter is the “MODULATOR”. This equipment receives the video and audio
signals as well as any control signals needed. The base band signals are converted to RF with an output
on the desired operating channel.
Detail operation of the Modulator with schematics and P/L is provided by the equipment manufacture.
REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS PACKAGE
G. VS500 4-WAY SPLITTER
The VS500 4-WAY splitter receives the output of the Modulator/Driver and splits it into 4 parts with
phase and power levels equal. This unit is an isolated in
-
phase splitter and will provide some isolation in
the event one PA fails.
H. MFA1KW PA MAINFRAME ASSEMBLY
The MFA1KW is the main RF Power Amplifier housing which accommodates two (2) V600LDV2
Amplifiers. The housing includes the following:
2 ea ....................................................................... 330 CFM cooling fans
2 each ................................................................... Air filter assemblies
2 each ................................................................... Front panel status PC Boards
1 each ................................................................... Main chassis
2 each ................................................................... Mechanical slide assemblies
1 each ................................................................... AC Filtered inlet for cooling fans
SEE SECTION VI.C. FOR SCHEMATICS AND PARTS LIST (page 19)
V — THEORY OF OPERATION
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