Has anyone ever run across an IC manufacturer prefix of POL? I have a Philips (BTM2180) mini stereo that I'm trying to fix and it has two POL4558 op-amps. Per the schematic, they should be NJM4558's. I've searched all over the Interwebs and found exactly nothing about POL or P0L. The sucker is 4mm square so it is difficult to photograph or I'd send a pic. EDIT: Daughter got a pic in their native environment. Likely failed one is top left mostly out of frame because it's on the edge of the board. They are the same.
The one from the tuner appears to have a failed "A" channel. I get nothing downstream of that rig. The B channel works fine. I ordered 10 of the NJM4558E from Mouser to replace the bad one. The shipping cost more than 10 of them and I might kill one or three getting it soldered; again, itty bitty...