WG 25K5515 troubleshooting

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OK, I've got two 25K5515 chassis that need to be repaired. Both come out of my Hard Drivin' cockpits that I bought recently.

#1: before it was shipped, I powered up this one and it showed very little on the screen:
http://gallery.me.com/andre.huijts#101023/DSCF7292&bgcolor=black

At least there was some yellowish band on the right side of the screen. You also see it "syncing" a bit. BUT, it had HV for sure !

After it was transported (and I know the cab had a bumpy ride because there were two new damages on the side panels) we tried it again. This time the HVT was showing some nice lightning going on around it. A bit later it started to flame so we shut it down ASAP.

Now, when I removed the HVT it turned out that the ferrite core had broken.
What I think that happened is that the core was broken during the transport and then when we powered it up, the HVT self-destructed because of this.

Now....of course I'll need a new HVT for it. However I read the HOT and the voltage regulator also often fail when the HVT fails. I removed them to measure them. In diode test, I hear a beep on my DVM when I measure between the two pins. In ohms it shows a value of 36 Ohms.
I compared it to the one on the other chassis and that one is 50 Ohms.
There is no short between the pins and the casing.

The STR both show the same results too.

#2.
Now chassis nr. 2 kinda works. It seems to have syncing problems in the lower part of the screen. I have a feeling a cap-kit should fix this...
So at least I can compare some parts of #1 to this one.

So my questions:

-If the HOT is dead, I guess one (or both) of the pins would be short to the case ?
-Are the differences in ohms measuring between the pins of both HOTs (36 and 50 Ohms) normal ?
 
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Usually you check the HOT using a diode test, not an ohm test. You should not get a short to the case from either of the legs...
 
Yeah I did both, I did it in diode test and because I got a beep and a very low voltage crossing indicated I switched to bare Ohms measuring to see if there was a hard short between the legs.

There's no shorts from either pins to the housing so I guess both are fine still...

Thanks.
 
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