[TechAssist] Zenith projection model Z60Z83D8 9-1674-01 module

Set had shorted horizontal out, bad flyback and shorted crx3412 diode. 
Replaced all with Zenith original- hooked up set and worked great for 35 
minutes. The horizontal output and crx3412 are shorted again. B+ voltages 
were all perfect. Any helpers who could suggest why there might be a repeat 
failure?? Thanks from Mike at the Video Center. My e-mail is ttkirkpat@xxxxxxx
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