Search found 2 matches

by maaku80
Mon Nov 21, 2011 7:32 am
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: MS2 v3.0 voltage problem
Replies: 3
Views: 294

Re: MS2 v3.0 voltage problem

Here are the results:
I am powering megastim with Vivanco switching power supply. It is giving +11.85V

S12 = 11.73V
S12C = 10.89V
center leg of Q9 = 11.72V
center leg of Q12 = 11.72V
left (non-banded ) end of D3 = 11.73V
left leg of U5 = 10.15V
left (banded) end of D9 = 10.16V


S5 = 4.89V
two +5V ...
by maaku80
Sun Nov 20, 2011 7:58 am
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: MS2 v3.0 voltage problem
Replies: 3
Views: 294

MS2 v3.0 voltage problem

I am having problem with my MS2 v3.0 board. When I power it with my megastim v2.21 only IG led lights up. I have tried to re-solder components but nothing seems to help. When board is powered with stim, resistors R31 and R35 heaten up very much. I found some other topic which had instructions ...