Search found 6 matches

by jbxx
Mon Nov 28, 2011 6:51 am
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: Isolation of Q9 and Q12 from heat sink
Replies: 2
Views: 277

Re: Isolation of Q9 and Q12 from heat sink

300 ohms wi + on the tab - on the sink.(each)
315 ohms wi - on the tab + on the sink. (each)
by jbxx
Fri Nov 25, 2011 1:20 pm
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: Isolation of Q9 and Q12 from heat sink
Replies: 2
Views: 277

Isolation of Q9 and Q12 from heat sink

For the ouput section construction the manual says, "After assembly, check that you have very high resistance between the metal tab of both Q9 and Q12 and the heat sink. If you get less than about 60K Ohms (± 20K Ohms) resistance, you MUST correct it."
I did this and one transistor was isolated one ...
by jbxx
Wed Nov 23, 2011 8:32 am
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: No rpm
Replies: 6
Views: 539

Re: No rpm

That worked! Thanks! :D
I thought that Megatune would not work with that late a firmware, I must have misread something.
I get a boatload of errors on startup in Megatune, Tuner Studio seems to not have the errors.
I will attempt to reload a fresh 2.90500.
Thanks again. Have a great Thanksgiving ...
by jbxx
Tue Nov 22, 2011 3:42 pm
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: No rpm
Replies: 6
Views: 539

Re: No rpm

Is this what you want?
See attached.
Tnx.
J.B.
by jbxx
Tue Nov 22, 2011 12:23 pm
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: No rpm
Replies: 6
Views: 539

Re: No rpm

With 5 V jumped to TSEL, I get .09 volts at pin 14 of U1. With no voltage jumped, I get 4.19 VDC at pin 14 of U1.
Mods.... please move my post to the correct forum. Sorry, not off to a good start!
J.B.
by jbxx
Tue Nov 22, 2011 8:50 am
Forum: MS-II and V2.2/V3 Main Board Assembly, Testing, and Troubleshooting
Topic: No rpm
Replies: 6
Views: 539

No rpm

Good morning,
My name is J.B.
I am in the process of building an MS-II V.3.. I am running MSII Rev 2.905, processor type MS-II daughterboard.
I passed the power supply and communications tests and have completed the input section.
I am not seeing any tach input. If I power down I can vary the other ...