Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default BEKO 12.7 Line transformer??

Got this 21" set with chassis BEKO 12.7 . came in with duff line
transformer (LOPTX) - charred and emitted smoke when powered up.
reference number on its side: TLF158E-06C 3817 A

checked the HR diemen ref and the 3817 corresponds to HR7503.

Got it, fitted it, but the set didn't start up from standby. B+ gets to
the LOPTX but nothing at the HOT collector- something going amiss
somewhere. have checked for shorts on the ps outputs and other lines
off the LOPTX (vertical etc) - seem ok.

Don't know if the HR ref was the correct one ( but beko is listed under
hr7503) or the replacement is simply duff.
perhaps some kind soul could check which is the reference number of the
LOPTX on this chassis; on my schematic nothing is printed. Then I can
double check the HR list

cheers
-B.

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Default BEKO 12.7 Line transformer??


b ha escrito:

Got this 21" set with chassis BEKO 12.7 . came in with duff line
transformer (LOPTX) - charred and emitted smoke when powered up.
reference number on its side: TLF158E-06C 3817 A

checked the HR diemen ref and the 3817 corresponds to HR7503.

Got it, fitted it, but the set didn't start up from standby. B+ gets to
the LOPTX but nothing at the HOT collector- something going amiss
somewhere. have checked for shorts on the ps outputs and other lines
off the LOPTX (vertical etc) - seem ok.

Don't know if the HR ref was the correct one ( but beko is listed under
hr7503) or the replacement is simply duff.
perhaps some kind soul could check which is the reference number of the
LOPTX on this chassis; on my schematic nothing is printed. Then I can
double check the HR list

cheers
-B.


FOR THE RECORD: HR8484

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