Re: DPS285BP 5v standby transformer blown
I used my digital microscope and the coil at pin one is burnt.
Second photo is good side.
Anyone ever take one of these part and rewind?
I am going to try and open.
Or know of a a replacement
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[ATTACH]255578[/ATTACH]Re: DPS285BP 5v standby transformer blown
I used my digital microscope and the coil at pin one is burnt.
Second photo is good side.
Anyone ever take one of these part and rewind?
I am going to try...
Hounddoghill
New Member
Last Activity: 02-10-2022, 03:57 PM
Joined: 02-02-2022
Location: barrington Il
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Re: DPS285BP 5v standby transformer blown
Checked again and 1-4 open and bobbin wires look solid at pins.
So I think I need a replacement plan.Leave a comment:
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Re: DPS285BP 5v standby transformer blown
good info
2-3 is 2.8 ohm
1-4 is open
should 1-4 be open?Leave a comment:
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Re: DPS285BP 5v standby transformer blown
1-2 and 3-4 are both open
5-7 Output still has .1 ohm (6 and 6 windings in parallel)
there is a suggested transformer spec on the data sheet for standby power IC.
1-2 is 72 windings
2-4 is less don't recall
Pretty sure it's deadLeave a comment:
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DPS285BP 5v standby transformer blown
Sharp TV LC-80LE633U
Power supply board DPS 285BP Run TKB096WJQZ
Standby transformer markings (attached picture)
MP-130I(01)
AV-DP11153 Delta
Dcum 1244(03) H6P
So an event in the primary exploded the cap (C7901)on pin one of the Standby circuit IC. So after replacing a couple diodes a the 2.2ohm resistor(fuse) I found the transformer inputs are open.
Anyone know about replacements for this transformer?
I suspect the original is not available.
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Re: New Members - please post your introductions here
Fine coffee and working electronics isn’t asking too much.
Hope to have both soon with a little helpLeave a comment:
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