Boss PRO SE-70 - TROUBLESHOOTING; No Sound Produced;Level Is Too Low; Overload Indicator Lights Too Frequently During Input

TROUBLESHOOTING
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If the unit does not appear to be operating properly, first check through the list that follows. If you cannot correct the
problem, contact your Roland retailer or the nearest Roland Service Station.
No Sound Produced/Level Is Too Low
Have you checked for damaged cables?
Try replacing the cables.
Are connections with external devices properly made?
Check to make sure all connections are in order.
Is the volume set too low?
Check the volume on the amplifier and/or mixer you are using.
Are the Input Level knobs set properly?
Check and reset as necessary.
“Adjusting the Input Level” (P.14).
Are the settings for the Patch suitable?
Check to make sure that parameter settings, such as the one for “Level,” are not set too low.
Do you have “Master Level” set to be used for real-time control, or as a MIDI Control?
You must operate the appropriate source.
See “Settings for Real-time Control Over Parameters”(P.32) and “MIDI Control” (P.42).
Do you have “Mute” set for the Effect Off Mode?
If set at “Mute” there will be no sound produced whenever the effect is off.
“Settings for the Effect Off Mode” (P.18).
Overload Indicator Lights Too Frequently During Input
Have the “Input Level Knobs” been set properly?
Adjust the Input Level Knobs.
“Adjusting the Input Level” (P.14).
Do you have the “Level Switch” on the rear panel set to the correct position?
Set the Level Switch to the “+4 dBm” position.
Is the input level too high?
Adjust the output level on the external unit to obtain the appropriate level.
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