I have yet to replace a chip on a board and so I ask this with respect tobest
practices of the restoration community. Is socketing the chip a recommended thing to do?
On another note, I believe the rig linked below is meant solely for the original power supply. Would it be prudent to build a rig like this for any power supply? Or are the modern equivalents built with this sort ofprotection
Daniel <nospam.Daniel@f1.n770.z3145.fidonet.org> wrote:
I have yet to replace a chip on a board and so I ask this with respect to best
practices of the restoration community. Is socketing the chip a recommended >> thing to do?
The advantage is that if the chip fails it's easy to replace, the disadvantage is that if the chip seems to have failed, the first
suspect is that it's just a poor contact in the socket. So easier
to fix but _possibly_ less reliable. More of a problem if the board
is likely to be bumped around a lot. You'll have to decide for
yourself what you prefer.
You might also consider installing heatsinks on some of the chips
seeing as you're doing everything else.
In theory the originals had protection built into their design, it
just tends to fail because they run too hot so the regulator chip
dies an early death. Poor quality capacitors can also fail early
and cause excessive supply ripple, more so if also overheated.
So if you're sure that the replacement power supply is well heat
sinked and uses high quality genuine components, it might be
over-kill to use a protection circuit. On the other hand if it's
something that someone's cobbled together from cheap Chinese
PSU modules bought off Ebay, then I'd suggest more caution.
My design also indicates ripple and low 5VDC or 9VAC voltage: http://computernerdkev.heliohost.org/comiemon/comiemon.htm http://computernerdkev.heliohost.org/comiemon/relay.htm
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