Well, I made this situation worse. I was checking if the TS13005 was getting hot. No, barely warm.
But, the board slipped and was on top of the cooling fan, which shorted something out, near where the mains come in. It made big sparky.
I don't know what damage that caused, quite for the night. Sorry, not sure if it is too far gone now. Arghhh...
For Q3 & Q4, I measured from Pint 1 (G) 3.2m ohms on Pin 2 (D) & 2.3m ohms Pin 3 (S).
55NM6OND
[url]https://alltransistors.com/adv/pdfview.php?doc=stw55nm60nd.pdf&dire=_st[/url]
...
bob_2020
New Member
Last Activity: 02-28-2025, 02:27 AM
Joined: 01-13-2025
Location: DC
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>The bridge rectifier is surely damaged,
Seems reasonable, though it is putting out 168v?
The relay is 12v written.
That chip is AZ494CP [I](on the back side of the large heatsink, right (see pic) ?)[/I]
Chip voltages:
[TABLE="border: 1, cellpadding: 1, width: 200"]
[TR]
[TD]1: 1.7[/TD]
[TD]16: 1.7[/TD]
[/TR]
[TR]
[TD]2: 3.5[/TD]
[TD]15: 3.4[/TD]
[/TR]
[TR]
[TD]3: 0[/TD]
[TD]14: 3.6[/TD]
[/TR]
[TR]...Leave a comment:
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Yeah, when I saw the "black carbon spit" on the rectifier, I thought for sure it was a gonner.
For [B]TS13005[/B]
G = 5.9v
D = 118v
S = 5.3v
[B]D24[/B]
Anode = 0
Cathode = 4.6vYeah, when I saw the "black carbon spit" on the rectifier, I thought for sure it was a gonner.
For [B]TS13005[/B]
G = 5.9v
D = 118v
S = 5.3v
[B]D24[/B]
Anode = 0
Cathode = 4.6vYeah, when I saw the "black carbon spit" on the rectifier, I thought for sure it was a gonner.
For [B]TS13005[/B]
G = 5.9vLeave a comment:
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70 amp output.
I included the pic under the heat sink.
I see 168v dc out from the rectifier.
I have reviewed the two issues you highlighted in the pics.
For the first pic, the solder joint is fine, it's just the lighting.
For the second pic, overheat issue, I cleaned up the spot and there is continuity between the joint and the trace....Leave a comment:
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Fuse is fine.
Relay does not click
Pulled those electrolytics, and checked esr and capacity and all good.Leave a comment:
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Here is a better one....
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Attached are pics of the front and back of circuit board....
Leave a comment:
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Looking for Schumacher INC-700A Schematic
Have this car charger, not working, not sure what is wrong with it. Display is not coming up.
I have poked around the board, have not found any glaring defects. -
Software developer in the DC metro area. Like to repair things. Picked up a car charger that was being thrown, want to get it working.Leave a comment:
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