Ok, so here goes:
Got this K7500 and another from a dual Crusin USA.. First one had a blown, I mean exploded flyback.. Capped and replaced the fly, all good. Now the second chassis has been a problem.
First time I fired it up a resistor in the center of the chassis smoked.. Ok, replaced that. I then capped it, replaced the flyback, and reflowed solder where it needed it. Fired it up, horizontal line across the screen.
So, I follow the Wells Gardener repair guide and test each component that is listed.. Hell, I even replaced everyone of them.. I also pulled both ICs and replaced with known working ones in sockets.. Replaced U601 too..
Fired it up, horizontal line across the screen..
Ok, great.. Maybe the new flyback is the problem.. Swapped in the old one.. Same issue.. Ok, maybe one of the "known working" parts I swapped in was bad.. Replaced one at a time, same issue. I even tested the yoke (ohm reading for horzontal and vert) .08/1 and 7.2/7.5 so the yoke is good.
So.. I'm about to smash this thing.. What am I missing here?
Got this K7500 and another from a dual Crusin USA.. First one had a blown, I mean exploded flyback.. Capped and replaced the fly, all good. Now the second chassis has been a problem.
First time I fired it up a resistor in the center of the chassis smoked.. Ok, replaced that. I then capped it, replaced the flyback, and reflowed solder where it needed it. Fired it up, horizontal line across the screen.
So, I follow the Wells Gardener repair guide and test each component that is listed.. Hell, I even replaced everyone of them.. I also pulled both ICs and replaced with known working ones in sockets.. Replaced U601 too..
Fired it up, horizontal line across the screen..
Ok, great.. Maybe the new flyback is the problem.. Swapped in the old one.. Same issue.. Ok, maybe one of the "known working" parts I swapped in was bad.. Replaced one at a time, same issue. I even tested the yoke (ohm reading for horzontal and vert) .08/1 and 7.2/7.5 so the yoke is good.
So.. I'm about to smash this thing.. What am I missing here?



