From: MagerValp (MagerValp_at_cling.gu.se)
Date: 2005-12-07 01:50:38
>>>>> "M" == MagerValp <MagerValp@cling.gu.se> writes: M> * 250407 board. M> * PSU is fine, I measure 9.4 VAC at the power connector, and 5 V on M> the user port. M> * With the fuse removed, I measure 9.4 VAC across C21. M> * With the fuse in place, I measure 2.0 VAC across C21, but this M> fluctuates a bit (0.6 - 2.1 VAC). M> * With the fuse in place, I measure 0.15 V across pins 2 and 3 on VR1, M> the 7812, and this also fluctuates a little. M> * I tried removing the VIC and the SID, which I believe are the only M> 9/12V ICs, and it didn't have any effect. I did some more measurements: * 1.1 V across C19. * 0 V across C90. * 1.1 V across C88. My 1982 board measures 10/10/17 V. It looks like CR4 could be the culprit (likely, unlikely anyone?). It's a PITA to desolder, but at least it's cheap to replace... -- ___ . . . . . + . . o _|___|_ + . + . + . Per Olofsson, arkadspelare o-o . . . o + MagerValp@cling.gu.se - + + . http://www.cling.gu.se/~cl3polof/ Message was sent through the cbm-hackers mailing list
Archive generated by hypermail pre-2.1.8.