[mythtv-users] Re: TV-tuner noise interference problem

[Alexander P. Petkov]

I tried to send mail earlier today, but it bounced. I apologize if it 
shows up twice... Here it is again:


I believe I have found what's causing this video signal interference 
with my tv-tuner card. 

I am running an Abit BH6 ver 1.0 with an upgradeware slot-t adapter 
that houses a Celeron 1.4 processor. 

Anyway, I took the whole machine apart this morning, and inspected 
cards one by one: 

1. I changed the video card, the video noise problem was still there. 
2. I changed the processor with an old Celeron 400Mhz, the problem 
almost went away. 

Upon closer inspection of the motherboard, I see that the inductor 
coil (between the keyboard and PS/2 mouse ports, and the slot 1) is 
all charred. 

Also, the 4 capacitors at the same location are swollen and cracked @ 
the top. 

What happens is that the Slot-t adapter supplies voltage through the 
molex connector, which is out of spec for the motherboard. People 
suggest using aluminum plate to dissipate heat, but I didn't have 
one. Other than that, the motherboard still works fine. 

I tried again the tv-tuner card in another computer, no problem 
whatsoever with the signal. 

So , it looks like I will have to look to change/upgrade the 
motherboard, or try to fix it. 

Any suggestions for a Tualatin motherboard? Is it possible to replace 
the coil and capacitors on the Abit? 

Thanks for reading this and for your ideas. 

Alex