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k7hpdistboardanalysis [2010/01/29 21:51]
n5na created
k7hpdistboardanalysis [2010/01/29 21:57] (current)
n5na
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 With the case open I get the following : With the case open I get the following :
  
-Ambient (air) temp in vicinity of the board 28.4 C Printed circuit board temp at base of the two capacitors C6,C9 46.7 C +Ambient (air) temp in vicinity of the board 28.4 C Printed circuit board temp at base of the two capacitors C6,C9 46.7 C\\ 
- +C6 case 47 C (1530ma)\\ 
-C6 case 47 C (1530ma) +C9 Case 44.7 C (760ma)\\ 
- +C7 case 40.2 C (248ma)\\
-C9 Case 44.7 C (760ma) +
- +
-C7 case 40.2 C (248ma)+
  
  
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 FWIW -the ambient went as follows during the closed heating cycle. FWIW -the ambient went as follows during the closed heating cycle.
 (power was off while replacing covers - then turned back on) (power was off while replacing covers - then turned back on)
-Time  Temperature +Time Temperature ^ 
-3:20  28.4 C +3:20 28.4 C | 
-3:34  32.0 C +3:34 32.0 C | 
-3:54  37.2 C +3:54 37.2 C | 
-4:21  41.4 C +4:21 41.4 C | 
-4:46  43.8 C +4:46 43.8 C | 
-5:23  44.8 C +5:23 44.8 C | 
-5:47  45.5 C+5:47 45.5 C |
  
  
-Printed circuit board temp at base of the two capacitors C6,C9 55 C +Printed circuit board temp at base of the two capacitors C6,C9 55 C\\ 
-C6 case 56 C (1530ma) +C6 case 56 C (1530ma)\\ 
-C9 Case 53 C (760ma) +C9 Case 53 C (760ma)\\ 
-C7 case 46.2 C (248ma)+C7 case 46.2 C (248ma)\\
  
  
 Then I re-measured again as it was cooling (obviously the ambient temp was changing as I was measuring the above - and you never know how long to wait for the next digit to change on the dvm) Then I re-measured again as it was cooling (obviously the ambient temp was changing as I was measuring the above - and you never know how long to wait for the next digit to change on the dvm)
  
-Printed circuit board temp at base of the two capacitors C6,C9 51.8 C +Printed circuit board temp at base of the two capacitors C6,C9 51.8 C\\ 
- +C6 case 50.3 C (1530ma)\\ 
-C6 case 50.3 C (1530ma) +C9 Case 47.0 C (760ma)\\ 
-C9 Case 47.0 C (760ma) +C7 case 42.8 C (248ma)\\
-C7 case 42.8 C (248ma)+