AR 25U1000, Operating And Service Manual

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Model 2.5U1000
8 Rev A
3.2.1.3 A3 2W Amplifier Assembly (Schematic 10041055)
The 2W Amplifier Assembly has two gain stages (U1 and Q1) that have a combined gain of approximately 30
dB. The output RF power is greater than 2W at the 1 dB compression point
3.3 POWER SUPPLY
Refer to Schematic Diagram 10043442.
PS1 su15 VDC at 2.5 amps and -15 VDC at 1 amp. PS1 is a switching supply that automatically sets
the AC input circuits to the correct connections for the line voltage 90-264 VAC, 50/60 Hz.
PS1 is a multiple output supply. The main +15V, 2.5A supplies voltage to the B1 Fan Assembly. The –15
volts DC is supplied to the A1 module.
PS2 is a single output supply which pr24.0VDC to the RF final stage and to the A1 module