- HAAS TL_3 varistor codes
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Last edited by alain aleman; 11-23-2017 at 06:12 PM.
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Re: HAAS TL_3 varistor codes
Thank you so mucho my friend, is correct.
Regards,
Alain
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Re: HAAS TL_3 varistor codes
Hi Alain
obviously the photo did not show me enough detail !!!
I have had a look at the HAAS web site but they don't appear to make the circuit details of the PCB's available
assuming no other damage has been done ( like fuses or PCB tracks blown )
I would expect you will measure about
230 to 240 V AC across the S20 K250 varistors
and 420 to 440V AC across the S20 K460 varistors
so you should be able to workout what device was destroyed
by measuring across the PCB terminals
the S20 indicates the varistor's diameter
and the 3 digits after the K is the Max. AC operating voltage
what does the under side of the burnt terminals look like ??
be care full removing the wire ends not to pull out the Via's (plated through holes)
or peel the copper tracks of the board
John
Last edited by john-100; 11-24-2017 at 12:59 PM.
Reason: add ref to vias
- HAAS TL_3 varistor codes
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