Re: Philips B3X85U troubleshooting
Across the speaker tags you should measure (with set turned off) 5 Ohms approximately with the speaker disconnected. The transformer secondary will also have a low reading if it is intact, this also has a tapping that goes to a tone corrector C28 which gives negative feedback to the grid of the output valve via R52, R21.You have already measured + at C2 150V (101V) and +++ at C1 185V (124V). ++ is the other end of R1.
But please be careful this is not the ideal set for a beginner, make sure the mains neutral is always going to the chassis.
|