communication
communication
(OP)
sirs,
ilike to know why d.c supply +ve terminal is grounded
in communication systems i didnot get correct or acceptable reply
ilike to know why d.c supply +ve terminal is grounded
in communication systems i didnot get correct or acceptable reply





RE: communication
You will also find that many systems use a current to "seal" connections. Without this current, splices can appear to go open circuit. This can be a problem with socketed CMOS ICs since their inputs draw no current. Note also that any connectors or switches that carry a signal to very high impedance inputs may appear to fail as well with time. This can be configuration DIP switches and jumpers. Don't count on designers of PC motherboards and add-on cards to know much about this. It can account for older PCs getting "flakey". A preventive measure is to remove and re-insert all jumpers and connectors and toggle all dip switches to clean the contacts. Do this whenever you open a system for upgrades and mods.
RE: communication
RE: communication
RE: communication
RE: communication
At last ... this question, or variants of it, has been posted many times. Your first paragraph is the clearest and most logical answer I recall seeing ... star from me !