A Boss DS-1 in need of service.
It got fed 18V instead of the usual 9V, bypass is working fine but quiet when effect is engaged.
A voltage reading of the op-amp indicated it was fried, +9V on all the pins but the GND connection. Here replaced with a JRC4558, also take a look at the bigger 100uF capacitor to the left.
Here it is desoldered. It did not survive the 18V it was feed. Replaced with a new one and the circuit is working again.
