Differences
This shows you the differences between two versions of the page.
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k7hpdistboardanalysis [2010/01/30 02:51] n5na created |
k7hpdistboardanalysis [2010/01/30 02:57] n5na |
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| Line 35: | Line 35: | ||
| 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) | + | |
| Line 53: | Line 50: | ||
| 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) | + | |
