Fault Finding - NJD Electronics Q-PEDAL Manual

User Guide
changed whilst in flood or blackout.
SOUND.
The SOUND switch selects sound chase. The chaser will
advance on step in the pattern on each beat of the music. The
SOUND LED illuminates continuously whilst in sound chase. and
flashes whenever a beat is detected when in any other mode.
Mimic
The four red LEDs allow the user an instant visual indication of
the unit's performing mode.
Output permanently off (LED illuminates normally)
• Fuse failed. Firstly check the apparatus connected to the
faulty channel for short circuits, and check to make sure that the
output has not been overloaded. Disconnect the supply, then
remove the left-hand end panel (the opposite end to the mains
cable) by removing the four Torx screws using a Torx T20
Screwdriver, and slide out the fascia panel. There are separate
fuses for each output socket. Replace fuse with a 5Amp fast blow
high breaking capacity 5×20mm fuse. Replace the fascia panel
and end panel.
Output permanently on (LED illuminates normally)
• Triac failed. Firstly check the apparatus connected to the
faulty channel for short circuits, and check to make sure that the
output has not been overloaded. Disconnect the supply, then
remove the right-hand end panel (the opposite end to the mains
cable) by removing the four Torx screws using a Torx T20
Screwdriver and the jack socket nut, and slide out the fascia
panel. Remove the earth screws and two screws that fix the
heatsink to the extrusion and remove the circuit board. Replace
the triac with type BTA16-600B or equivalent.
soldering. It may be advisable to take the unit to a dealer to have
a triac replaced. A badly carried out repair will invalidate the
warranty, and may make the unit unsafe. NJD accepts no
responsibility for any injury or damage to equipment caused by a
poor repair. Replace the circuit board, the heatsink screws and
earth screws. Replace the fascia panel and the end plate.
© NJD Electronics 2003

FAULT FINDING.

Q-PEDAL
This involves
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