 |
|
| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
| Reply |
|
|
LinkBack | Thread Tools | Display Modes |
|
|
|
#1
Posted to sci.electronics.repair
|
|||
|
|||
Transformer shot! (was scope SMPS/ capacitor venting)
"Hhmmm. As I've said before, I'm reluctant to replace that power resistor
with anything higher rated. " It is NOT higher rated. A 100 watt incandescent in that spot will limit the current even lower and there is less chance of blowing anything else. I did not mean to suggest that you change your plan of troubleshooting, just that next time when it comes to a hot test, use the bulb. If something is still shorted you have a hell of alot more time to figure out what, rather than having overheat in seconds. When the light dims, you probably found the problem. the light goes down in resistance as all the filters charge and get almost to full voltage, once it does that it works without a net. Regular fuse and all that. I consider a dim bulb tester a must for this type of work. |
|
#2
Posted to sci.electronics.repair
|
|||
|
|||
|
Transformer shot! (was scope SMPS/ capacitor venting)
On Sun, 28 Feb 2016 14:02:33 -0800, jurb6006 wrote:
[...] I consider a dim bulb tester a must for this type of work. Ah, that makes much more sense now; many thanks for that clarification. |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Returning to that Scope SMPS Problem... | Electronics Repair | |||
| 'scope smps update | Electronics Repair | |||
| Bank winding of HV SMPS transformer? | Electronics Repair | |||
| SMPS capacitor test question | Electronics Repair | |||
| Primary-secondary coupling capacitor in SMPS | Electronics Repair | |||
Hybrid Mode
