Hi all;
I'm trying to diagnose a power supply that includes two Split/Tran(tm) signal transformers: a DST-7-36 and a DST-7-48. When connected to the circuit boards it powers (from a TAS 101 Telephone Network Simulator), the power supply is blowing its 6A/250V fuse.
When the power supply is isolated from the circuit boards, I've noticed that the DST-7-48 transformer gets quite hot, but the DST-7-36 does not get warm at all. I left it powered up only for about 60 seconds and within that time, without any load, the DST-7-48 warmed up significantly.
Would this be indicative of a fault in the DST-7-48 transformer? A shorted winding perhaps? Is there a diagnostic technique I could use to assess its condition (I could remove it from the board, if necessary)?
Many thanks,
Tim
I'm trying to diagnose a power supply that includes two Split/Tran(tm) signal transformers: a DST-7-36 and a DST-7-48. When connected to the circuit boards it powers (from a TAS 101 Telephone Network Simulator), the power supply is blowing its 6A/250V fuse.
When the power supply is isolated from the circuit boards, I've noticed that the DST-7-48 transformer gets quite hot, but the DST-7-36 does not get warm at all. I left it powered up only for about 60 seconds and within that time, without any load, the DST-7-48 warmed up significantly.
Would this be indicative of a fault in the DST-7-48 transformer? A shorted winding perhaps? Is there a diagnostic technique I could use to assess its condition (I could remove it from the board, if necessary)?
Many thanks,
Tim
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