FAO Alain (and anyone elso who could help!)
Firstly thanks for all of your help so far..
A little time has passed since i last posted and I have since passed the Amplifier into the hands of a professional! He is in the process of getting validated onto here but until then I will post his results and findings.
The unit was powered up. After which Q47, (IRF260N) popped. This was replaced along with it's companion diode D35, as were C196, C275 & C193.
C201, C186 & C188 all measure ok as do these resistors:
8x 47.8KΩ, 1 Watt, 1% resistors
2x 35.7KΩ, 1 Watt, 1% resistors
The 16V zener at the R375 junction is OK too.
All the IGBT devices are ok (not short)
all that happens now on power-up is the device
RT6X gets hot very quickly!
Thanks in advance for any replies.
starlight9088Member Since 05 Aug 2013
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09 Dec 2013 - 17:31
06 Aug 2013 - 11:55