Hey Group: Got this ProJo in the shop that was supposed to have taken some kind of surge. Totally D.O.A.. Been through the P/S (Replaced Reg's. and caps.). Gone through the Deflection Module. Replaced several parts that checked OK (Like the H.O.T., etc.). Appear that I now have all the Stand By voltages, but unit still won't power up. Removed the Flyback and rang it - seems to check OK, however I know that's no guarantee. Since I don't have Schem. on this unit I was hoping that perhaps some one may know something about this 1993-1995 unit that I'm overlooking, or, hopefully there is someone out there that knows "Mit's" enough to make some suggestions. T.I.A. Jim
Mitsubishi VS-4003R ProJo Dead Set Issue
Oct 11, 2005
1 Replies
"Jim" bravely wrote to "All" (11 Oct 05 17:44:22) --- on the heady topic of "Mitsubishi VS-4003R ProJo Dead Set Issue"
Ji> From: Jim Ji> Xref: core-easynews sci.electronics.repair:344802
Ji> Hey Group: Ji> Got this ProJo in the shop that was supposed to have taken some kind Ji> of surge. Totally D.O.A.. Been through the P/S (Replaced Reg's. and Ji> caps.). Gone through Ji> the Deflection Module. Replaced several parts that checked OK (Like Ji> the H.O.T., Ji> etc.). Appear that I now have all the Stand By voltages, but unit Ji> still won't power Ji> up. Removed the Flyback and rang it - seems to check OK, however I Ji> know that's Ji> no guarantee. Since I don't have Schem. on this unit I was hoping that Ji> perhaps some Ji> one may know something about this 1993-1995 unit that I'm overlooking, Ji> or, hopefully there is someone out there that knows "Mit's" enough to Ji> make some Ji> suggestions. Ji> T.I.A. Ji> Jim
Could be a dead transistor switch or cpu line for the turn-on circuit. Is there any sign of activity at that cpu line? Cpu brain dead?
A*s*i*m*o*v
... First Church of Binary Science (The Digitarians)
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required