Re: Bad tuner?

In message <ePKse.20669$2K4.10277@trnddc08>, James Sweet <jamessweet@xxxxxxxxxxx> writes 

"RonKZ650" <RonKZ650@xxxxxxx> wrote in message
news:1118978375.384782.10320@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Very common problem is a bad PLL IC in the tuner SDA3202-2 is the
number and it's an absolute bitch to replace.


But he said tapping fixes it, I've never seen a vibration sensitive IC
before.
No, he didn't say that, he's stated twice now that the tapping only cured the no pic fault. Once he'd got the tube working then he discovered the tuner didn't work. BTW, I have seen a vibration sensitive IC, must have been a bond wire or something but it was an EPROM which 'looped' back to 0 intermittently when you were trying to read above 0x03fff. Tapping the chip would cause the problem to appear more frequently and could be demonstrated in a little test jig we threw together because it was such an unusual fault. 



--
Clint Sharp
.