View Single Post
Old 19th Feb 2021, 4:14 pm   #13
MikeCross
Tetrode
 
Join Date: Sep 2016
Location: Tring, Hertfordshire, UK.
Posts: 64
Default Re: Telequipment D67 Fault

Eventually found the box but only one transistor.
New 2N3906 purchased and TR253,254,255,256,258 replaced.
Still no traces but when switching off two trace spots are seen to disappear.
This looks more positive as when switching off prior to these changes a single green
spot was sometimes seen.
With TR261 and TR262 also being MPS6518 is it OK to replace these with 2N3906.

Mike
MikeCross is offline   Reply With Quote