hi all..
I have a strange issue on a Matsushita 14" color monitor, as used in some atari cabaret and cocktail cabinets. The associated Atari manual is TM-153.
Specifically i can't get the B+ to where it should be at 115v, Q801 tests good. There is a diode marked CR806 on the schems, D806 on the pcb, but described as a Zener diode in the parts list.. the device itself says 'RM25' on it. I cannot find any reference to it, ie what Zener value it actually is..
I've removed F2, and pulled the emitter of Q802 (and tied it to another 12v source) and still get 168v.
I was thinking this diode is important in controlling the base of Q801?
anyone have any ideas?
I have a strange issue on a Matsushita 14" color monitor, as used in some atari cabaret and cocktail cabinets. The associated Atari manual is TM-153.
Specifically i can't get the B+ to where it should be at 115v, Q801 tests good. There is a diode marked CR806 on the schems, D806 on the pcb, but described as a Zener diode in the parts list.. the device itself says 'RM25' on it. I cannot find any reference to it, ie what Zener value it actually is..
I've removed F2, and pulled the emitter of Q802 (and tied it to another 12v source) and still get 168v.
I was thinking this diode is important in controlling the base of Q801?
anyone have any ideas?