Fuchs Audio Technology ODS-30 Operation Manual page 10

5
(A)-REAR Panel Controls, inputs/outputs, (B)-Effects Loop
(A)-REAR panel Controls/input/output jacks
AC power cord input:
Using the supplied 120vac power cord. Connect AC POWER IN on amplifier and to AC
power source.
AC power Fuse:
This fuse protects the amplifier if any malfunction occurs. Use ONLY stock fuse rating
as supplied by factory.
Power On/OFF switch:
Up is ON, DOWN is OFF
Standby switch:
UP is ON, DOWN places the amplifier in STANDBY
Speaker input(s):
(You must have a speaker load inputted to the ODS before powering on).
Connect using a ¼" phone plug to either an outboard speaker cabinet. If you have
an ODS Combo amplifier, connect to the combo speaker with supplied wire/1/4"
jack. Multiple speaker inputs are installed on your ODS (4, 8 ohm). Connect speaker
to input jack that most closely matches your speaker(s) impedance.
Series/Parallel switch:
When in Series-amplifier must have an effect installed or amp will not produce
sound. When in Parallel-amplifier will always produce sound. Parallel mixes effect
signal with drive signal, which then remains in amplifier.
Return Trim switch:
Sets sensitivity & adjusts sensitivity of return input of the effects loop. Allows
tailoring of signal of effect or rack device. If used in series mode, you then depend
on outboard effect to mix wet/dry signal balance. Dry signal does not remain in amp.
Return adjustment control:
This allows overall volume adjustment of amp (to set unity gain), thus retaining
same volume with/without effect). This control sets the level coming back from your
effects, also a secondary means of adjusting return of effect signal. NOTE: The
higher gain position is usually used for pedal level signals, and the lower level is for
rack type effects. The series parallel switch controls whether the loop is "open"
(series) or "closed" (parallel). In series mode the amplifier will produce no sound
(except reverb tank output). This is because an effect must be plugged into both the
send and return jacks.
Return Input jack:
Connects to OUTPUT FROM your EFFECTS
Send Input jack:
Connects to INPUT TO your EFFECTS.
Send adjustment control:
Adjusts signal level going to effect. Adjust send control so that effect receives
maximum amount of signal before distorting.
ODSm 3/2005