An Ibanez FL9 Flanger service
The pedal works in bypass but does not flange when engaged, and the indicators led is not lit.
Bottom view of the circuit board.
Component side, TL022 opamps, MN3102 clock driver and the MN3207 BBD delay.
Problem located with the TL022 acting as LFO for the clock driver. It had shorted out, even burnt of the GND copper layer on the circuit board. The opamp was replaced and the GND connection was added.
Replaced the broken led indicator, also added a higher value current limit resistor for it. Recalibrated bias, clock and regen.