Hantarex Polo Flyback Replacment Issue

Arm123

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Hey there,

I have a KI cab that had a sparking flyback... and no image

I ordered a cap kit and new FB (1242.5001) from Bob Roberts.

After capping and replacing the FB i noticed that the new one is missing a pin, like in this picture...
polo.jpg


I started it up and it fired up to the test screen and comes up with an unstabel image... and its making a crazy rythmic ticking / arcing sound, thats seems to be coming from higher up on the monitor area... I know its not the chassis arcing, but i cant see any flash anywhere else.

It seems as if its coming from the neck (not neckboad) or anode cap.

Went over the whole chassis for cold solder joints and the B+ is around 135v to 138v

I also, tried adjusting the FB screen control and it doesnt do anything (missing pin on FB ?)

Iv run out of ideas and cant find anything on the net about this. Could i have the wrong Flyback installed ?
 
Did some digging around in the PSU section...

TP6 +133v
TP7 0v
TP8 +26v
TP9 +16v

Looks good except that TP7

Im about to check all the components around the main xformer TH101 that feeds TP7
 
Checked at R130: +83v

Picture appears to be rolling vertically.... checked T110, T112 as good. I don think IC04 would cause this as its ment for Hrz control.

Kind of stuck here... i hate just swapping parts
 
This is on going, on BYOAC forum...

http://forum.arcadecontrols.com/index.php?topic=112297.0

Replaced T119... now have +26v at TP8

Tested R167 and c189... checked out.

Still have the ticking / arching sound coming from around the neck. The picture is rolling vertically and cant stablize... seems to be synced / rolling with the arching sound.

I checked the wiring for the hr / ver yoke connections, coming from the chassis. No markes / gashes to cause arching.

Could i have a short in the yoke ? Which i cant see ?

Also, could IC104 cause vert rolling ?
 
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