Nanao MS9-29 Yoke issue

[segasonicfan1]

I have tried two working chassis so the problem definitely appears to be the tube or (more likely) the yoke.  Anyone have a suggestion of where to start?  I've only worked on the chassis before.  Monitor shuts off after ~2 sec.  Here's some pics.

Any help is much appreciated!!!

-Segasonicfan

[grantspain]

read the vertical winding of the yoke,should be about 9-10ohms

[segasonicfan1]

Thanks!  Do you know winding value for the H yoke?  I think its an H collapse (the pics show the monitor tated).

[grantspain]

oh yes,must have been half asleep when i first viewed this
horizontal deflection failure will be down to either bad/burnt yoke connector,bad solder joint on chassis or flyback faulty
the hot being short ciruit would put the chassis into ocp mode

[segasonicfan1]

Thanks for the reply.  Do you know the reading for the H winding on the yoke?
The chassis is good, there have been 2 working MS9-29 chassis tried on this tube now.  So it can't be the HOT or Flyback, it has to be either the yoke or the tube itself.  I somehow doubt that H collapse could be caused by the guns going bad though.

[grantspain]

about 0.8 ohm
you could remove the yoke and check for corrosion

have used the same remote board and cable to test each chassis