EM84 magic eye does not close on FM on Philips B4X92A (Techniek Radio/TV)

door ruudtx , 22.10.2022, 18:30 (762 dagen geleden) @ tdperez

If there really is a DC path between R11-C30 and R18-R21 and pin 1 of the EM, something is wrong, and you will get no moving EM.
The cause can be that SK 4 contacts both AM neg line and FM neg line in the FM position, so a short in the switch.

So recheck measurement in the FM position, the voltages on
R18-R21
R11-C30
pin 1 EM,

What is the voltage on R 21 and R 18 or over the elco in the FM detector.