isolation transformer needed

[bob]

** Its important for a tech to see any symptoms the customer is complaining
about, first hand.

You gotta plug it in to do that.



.... Phil

Customer says his unit was emitting smoke and smells. You look at the
unit and it smells crisp on first inspection. Are you really going to
tell me your going to plug it in first???

Customer says there is sparks from the AC cord where there pet rabbit
might have chewed it. You look at it and see bare copper.
Your going to plug that in first?

Customer brings in unit that has had liquid poured into it.
Are your going to plug that in without tearing it down first?

Most of the time you will plug it in to verify faults. But there are
times a visual and smell no power inspection will tell you a lot.

bob

 

[Phil Allison]

"bob"
( snip smartarse drivel )


** This above utter fool does not bother to read more than one post in a
thread before jerking himself off in public.


Examples he missed from ME in this thread:


" There are a host of other checks and inspections a service tech needs to
do
on and around the AC wiring, fusing devices and any AC power leads and
plugs attached to a unit. Any parts that are damaged, worn out or otherwise
seem unsafe must be repaired or replaced.

I go through a LOT of AC plugs, fuses and fuse holders in my work. "

And:

" My post does NOT say that it is the very first step.

It does say that with an unknown but possible PSU fault - connection to a
normal RCD protected AC outlet should be done FIRST - before using an
isolation tranny.

Obviously, visual inspection comes very first, including carefully checking
of the AC plug, lead and fuse if accessible. If the AC fuse is missing or
blown, then a major fault is likely.

In the latter case, MY procedure is to install a suitable new AC fuse and
gradually bring up the item using a variac - all the time monitoring the
current draw from the AC supply with meter specially built for that purpose.
If the AC current becomes unusually large ( or the RCD trips) as the AC
voltage rises - game over.



..... Phil

 

[bz]

Nice vanity call you have there Mr. N5BZ..

Thanks! Former call was WA5DQP.
My 'sine' has been 'bz' (my initials) since my first contacts as WN5DQP/0.

For some reason I have a vision of seeing you on slow scan?

Sorry, no. Played with tty many years ago. A bit of playing with packet
stuff. Occasional FM and SSB.

CW is my favorite mode.

73

 

[GregS]

Thanks! Former call was WA5DQP.
My 'sine' has been 'bz' (my initials) since my first contacts as WN5DQP/0.


Sorry, no. Played with tty many years ago. A bit of playing with packet
stuff. Occasional FM and SSB.

CW is my favorite mode.

73

I was just tapping out you call sign. Its been a while since I did that.
A really long while for the straight key.
I remembering trying to tap code while I was in the Army barracks
with a temporary setup. I was using two pieces of wire ! That was
40 years ago.

Seems my hand goes balistic on your letters. I need some practice
though. It was a lot easier doing mine. N6GS.

greg

 

[Jamie]

Thanks! Former call was WA5DQP.
My 'sine' has been 'bz' (my initials) since my first contacts as WN5DQP/0.




Sorry, no. Played with tty many years ago. A bit of playing with packet
stuff. Occasional FM and SSB.

CW is my favorite mode.

73

ah, CW, 30 WPM myself!
I can send faster!

 

[bz]

[email protected] (GregS) wrote in

I was just tapping out you call sign. Its been a while since I did that.
A really long while for the straight key.
I remembering trying to tap code while I was in the Army barracks
with a temporary setup. I was using two pieces of wire ! That was
40 years ago.

Seems my hand goes balistic on your letters. I need some practice
though. It was a lot easier doing mine. N6GS.

Try tapping out 'BENS BEST BENT WIRE' followed by the 'shave and a hair
cut' rhythm. It has a cool beat.

 

[GregS]

[email protected] (GregS) wrote in


Try tapping out 'BENS BEST BENT WIRE' followed by the 'shave and a hair
cut' rhythm. It has a cool beat.

Oh this could go on and on !!