 |
|
| 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. |
|
|
LinkBack | Thread Tools | Display Modes |
|
#11
Posted to alt.home.repair,sci.electronics.repair
|
|||
|
|||
Alarm system transformer + power supply (would both go bad atonce?)
On Sat, 23 Nov 2013 07:02:58 -0800, wrote:
In your case, it's very easy to establish if the battery is the problem or not. Measure the voltage with it connected to the alarm. The strangest thing happened when I took you up on your suggestion! A. The battery, connected to the power supply, was 12.87 volts: http://farm4.staticflickr.com/3785/1...ba3777a7_o.gif B. I also read 12.87 volts at the very edge of the power supply, so, the wires are good: http://farm6.staticflickr.com/5488/1...364f93f1_o.gif C. I then got 12.87 volts between the battery and the GND spade on the power supply board: http://farm8.staticflickr.com/7360/1...cb4a46a6_o.gif D. But, the strangest thing is there is no voltage between the battery and the PWR spade of the power supply: http://farm6.staticflickr.com/5516/1...cf8b97f4_o.gif I'm not sure what to make of those conflicting results. |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Power supply/Alarm problems | UK diy | |||
| Power Supply with transformer 300V | Electronics Repair | |||
| Identify High Current Power Supply Transformer | Electronics Repair | |||
| power supply transformer dead | Electronics Repair | |||
| Audio system power supply disagreement | Electronics Repair | |||
Threaded Mode
