NEC PCN-1815SSQN/1Cx2, Instruction Manual, Page: 54 / 110

GWP-G22906
SECTION. 3 FUNCTIONAL DESCRIPTION
This section furnishes the operator with sufficient information pertaining to the functions of
the PCN-1800N series by reference to the circuit sections introduced in 2-5, as well as to the
block diagram of Fig. 3-1.
Power
Supply
EXCITER
CIRCUITS
See 3-1
TS
OUTPUT
FILTER
See 3-4
To Antenna
POWER
AMPLIFIER
See 3-2
TRANSMITTER
CONTROL
SYSTEM
See 3-5
C OOLI NG
SYSTEM
See 3-3
Fig. 3-1(a) Block Diagram of TV Transmitter (S type)
Power
Supply
EXCITER
CIRCUITS
See 3-1
TS
To Antenna
TRANSMITTER
CONTROL
SYSTEM
See 3-5
C OOLI NG
SYSTEM
See 3-3
EXCITER
CIRCUITS
See 3-1
TS
OUTPUT
FILTER
See 3-4
POWER
AMPLIFIER
See 3-2
EXCITER
CIRCUIT
See 3-1
SWITCHING
Fig. 3-1(b) Block Diagram of TV Transmitter (P type)
3 - 1