2 2
FRONT PANEL FUNCTIONS
1. POWER
POWER SWITCH - The POWER switch has three positions; BATtery operation, STandBY,
and LINE operation.
BAT - Turns instrument on and instrument is powered by internal rechargeable battery pack.
NOTE: An INTERNAL / EXTERNAL battery switch and EXTERNAL POWER jack are located
on rear panel of the PSA-65C. When placed to "EXTERNAL" position, an external 11.5 - 15
VDC power source can provide power to the PSA-65C. This also charges internal batteries.
STBY - Amber LED is illuminated if line cord is connected to AC power source. Instrument is
functionally off although power is present inside chassis. NOTE: In this position, the battery
charger is operational and the internal battery pack can be re-charged.
LINE - Turns the PSA-65C on. All power is being provided by the AC line source.
2. BAT CHG/MON
The BATtery CHarGer is connected to internal battery pack when this switch is in the "ON"
position. An amber LED is illuminated while battery charger is on. NOTE: For proper battery
charger operation, the PSA-65C POWER switch should be in the "STBY" position. Then the
PSA-65C will be recharged to approx. 80% in 6 hours and 100% when left on charge
overnight.
NOTE: When BAT CHG and PSA-65C are on, the lower line of LCD display will indicate
battery voltage.
3. INTENS
The INTENSity control sets the intensity of the trace.
4. HORIZ POSITION - (Horizontal Calibration is factory set, however the unit can still be
calibrated in the field by using a tuning tool to turn the recessed HORIZ POSITION control
pot). See horizontal calibration in user familiarization section.
The HORIZontal POSITION control positions the sweep horizontally on the screen. When
properly adjusted, a signal located at the center of the screen will remain in the center of the
screen in any SPAN position.
5. AUDIO OUT JACK
Drives a low impedance earphone or speaker when the AUDIO DEMODulator is turned on.
Using this jack disconnects the internal speaker.
6. AUDIO DEMOD
This control activates the AUDIO DEMODulator circuit and controls the output level of the
demodulated audio output. NOTE: Audio can be heard anytime the AM-FM selector is in the
AM position or when the ZERO SPAN toggle switch is placed in either the "AUDIO" or
MOMENtary" position in the FM mode.
To Next Page
Loading...
Need help?
General
