I have a 1986 Fleetwood Brougham I am trying to repair the twilight senitiel for the headlights Have tried getting a spare amplifier from a salavge yard but no help does anybody know if there is a service manual for the amplifier itself thank you Norman

The photo cell and the amp must be a matched set! The electrical resistance is different on some. SO, get the photo cell from the same wreck and try that.

thanks for the reply tried matching photocells with no help I think the IC is bad in the amplifier norman