WJ-8611 DIGITAL VHF/UHF RECEIVER
CIRCUIT DESCRIPTIONS
5-21
the Input Power connector (FL1J1) and power filter (FL1). In the
electrical path to the power supply, the input voltage is fused at the rear
panel by a 1.0 Amp Slo-Blo fuse (F1), and routed to the front panel
POWER switch (A1S1). From the Power switch, the AC line voltage
enters the power supply at connector PS1J1.
The Switching Power Supply (PS1) is capable of providing reliable outputs
to the receiver over a wide range of input voltages and line frequencies. It
operates from 97 to 253 Vac, at line frequencies ranging from 47 to 440
Hz. The input circuitry of this supply requires no mechanical switching
for voltage selection and it provides built-in protection against transients.
The power supply outputs consist of two +5 Vdc outputs (PS1J1, pins 2
and 3), +13.5 Vdc (PS1J1, pin 1), and -13.5 Vdc (PS1J1, pin 6). These
outputs are connected to the Digital Control PC Assembly (A2) where they
are distributed to the various assemblies in the receiver.
Courtesy of http://BlackRadios.terryo.org
Содержание WJ-8611
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