On 1 Oct 2005 05:44:01 -0700, "Barry" wrote:

Thank you.
There are 2 lines of number on the chip somwhat like this
LA7830
2C 4

Pardon my ignorance.
Should I completely remove the old solder before resoldering?


That's the vertical IC. You don't need to remove the old solder. It
sounds like you may cause more harm than good by trying. You only
need to remove the old solder in cases of extreme heat damage which
crystallizes the old solder. In this case just applying a little new
solder will work fine.
Andy Cuffe

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