Bogen GS-250 - Manual (Page 13)

Troubleshooting
Amplifier will not turn ON. On the GS-35, GS-60, GS-100 and GS-150, depress the
circuit breaker.
On the GS-250, check the fuse. Replace fuse only with
same type and rating.
No output on 70V, 25CT, or 25V. Check that the LINK switch on the rear panel is in the IN
position or external signal-processing equipment, if used,
is functioning
Make sure that the shorting clip on the DIRECT OUT 4
Ω
output is in place.
No telephone output. Make sure that the MIC 5/TEL switch is in the TEL position.
When connecting the telephone Tip & Ring, make sure to
use the two outside terminals and not the center terminal
(GND).
Aux input will not mute with Check that the VAR MUTE control is not set to 4 (0dB).
telephone page. This control adjusts the level of the background music
when making a page. See page 10.
Microphone squeals or hums when Check your wiring connections for the 3-pin connector.
using the 3-pin connectors but not Pin 1 is the shield connection. Pins 2 and 3 connect
when using screw terminals. to high and low leads on the mic cable.
Condenser Mic will not work. Make sure that phantom power switch (MIC 1 - 4) is on.
See page 6.
Mic 5 and 6 use circuit board jumper. See page 6.
Telephone input cuts off the music, Adjust the VOX control on the rear panel to eliminate any
without making a page. unwanted noise that may be triggering the auto-mute circuit
See page 10.
Telephone input is choppy or Adjust the VOX control counterclockwise to make the
cuts off the beginning of a page. trigger activate at a lower input signal level. See page 10.
The telephone page volume is too Adjust the ALC control on the rear panel. See page 10.
loud on some pages.
AUX 1 input not working Make sure MIC 6/AUX 1 switch is in the AUX 1 position.
Make sure the signal source is plugged into the AUX 1
RCA jack.
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