Help Musical Fidelity B1

moatic · 5th December 2006, 05:13 PM

Ciao, first of all, excuse me for my little english. I have a M.F. B1 and I need to adjust the 4 trim pots in the main pcb. Can anyone help me? Thanks.

Leolabs · 6th December 2006, 12:38 AM

Why you have to adjust them???

moatic · 6th December 2006, 02:52 PM

I need to adjust them because the old trimpots have deteriotated contacts and the sound was very noisey and output sound goes on/off. I have replaced the old ones with new sealed trimpots. I measured the old trimpots with a multimeter, extreme point to center and center to extreme point then I need to create the same value in the new trimpots with the help of the multimeter. Now the amplifier is in function and no noise cames out, however I think that procedure is not correct.
Thank you very much for your reply.
Bye Leo.

5th December 2006, 05:13 PM	#1
moatic diyAudio Member Join Date: Dec 2006	Help Musical Fidelity B1 Ciao, first of all, excuse me for my little english. I have a M.F. B1 and I need to adjust the 4 trim pots in the main pcb. Can anyone help me? Thanks.

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6th December 2006, 12:38 AM	#2
Leolabs diyAudio Member Join Date: Dec 2004 Location: Bukit Mertajam	Why you have to adjust them???

6th December 2006, 02:52 PM	#3
moatic diyAudio Member Join Date: Dec 2006	I need to adjust them because the old trimpots have deteriotated contacts and the sound was very noisey and output sound goes on/off. I have replaced the old ones with new sealed trimpots. I measured the old trimpots with a multimeter, extreme point to center and center to extreme point then I need to create the same value in the new trimpots with the help of the multimeter. Now the amplifier is in function and no noise cames out, however I think that procedure is not correct. Thank you very much for your reply. Bye Leo.