[TechAssist] CTC169EJS, PS35123

  • From: "C&W Electronics" <c_w_electronics@xxxxxxxxxxx>
  • To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
  • Date: Sun, 13 Jul 2003 20:31:43 -0500

Need a little help here - - Set came in with Q4401(2SD1885) shorted. Removed, 
stand-by b+ was 169v.
Ckd C4102(2.2/100v); C4108(39/100v) both high esr, replaced, brought stand-by 
b+ down to 139v.
Replaced Q4401(2SD1885), temp increased to 140 f(in 15 min). Q4401 shorted at 
turn off. Changed C4402(.056/400v) & C4311(4.7/50v). 
Replaced Q4401(2SD1885) again, temp still increased to 140 degrees F, but more 
slowly(45 min). Did not short at turn off.
Question - - is this temperature too high for continued reliability??
Paul W
C&W Electronics
Azle Texas
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