Every guitarist's owned one of these, borrowed one, or wanted one. This one came in stone dead — customer's exact words: "Nowt. Do do dead." Translation: dead as a dodo. He wasn't far off.

Ibanez TS9 Tube Screamer on the bench with test probes connected
On the bench — probes on, looking for power

Power's the first thing to check on a stone-dead report, and the TS9 gave up the answer fast. The DC input jack had a dry solder joint — the kind that looks fine, passes a visual inspection, but isn't actually bonded to the board. Electrically: an open circuit. No power in, no sound out.

It's a common failure point on these. The jack sits right at the edge of the enclosure, and every time a power cable gets plugged in, tugged, or the pedal shifts around on a board, that joint takes the strain. Years of gigging, hundreds of small flexes. Something gives eventually.

Ibanez TS9 interior showing the DC jack and wiring
Interior open — DC jack at centre, the dry joint that killed it
Ibanez TS9 PCB solder side — joints visible across the board
Solder side of the board — otherwise sound

Reflowed the joint. Heat, fresh solder, clean bond. No parts, no drama. Power confirmed reaching the board, rest of the circuit checked out fine.

Doing what it's always done best. Drive, tone, level — all there. Switching cleanly. Back in business.

"Dead" pedals usually aren't. Before assuming the worst, it's always worth checking the basics — power jack first. One dry joint is all it takes.