Range Hood lights/2 work 2 now do not/not a bulb issue

Greetings, hope for some help here. Maybe there is a fuse within the unit that has blown? If so I don’t know how to access the fuses.

Have changed the bulbs 3x in the rare event that each new bulb was a dud.
Not a bulb issue. 2 lights front/back on left work, other two bulbs on right do not.

Thanks!!

The following may not help but it is the best I can do.

I cannot find any info on a PCH unit.
I did stumble across a PLH unit, following is info on that unit, includes a wiring diagram.
Parts for Electrolux PLHV42P8CC Hood - AppliancePartsPros.com

I think the parts they show as a reactor is really a transformer.
Although itis hard to see it looks like they have 120 volts going in and 12 volts coming out to power the bulbs.

With luck someone else will jump in with more info on how to take this apart or perhaps you can find an install etc. manual which will tell you.

Yes I erred it’s a PL unit. Thanks. What I did find is that there is a circuit board and replacing it is $667 for the part! Yikes! Thanks for the wiring diagram. I see it on the unit itself but it’s hard to photograph and see in detail.
Or I could see it, study it upside down and see a chiropractor immediately.

See the attachment then you should be able to just print it.
PCHV42P8CC.jpg (59.7 KB)