[lcaillo]

I am not sure what you mean by "vertical stabilizer." Vertical problems can be created at several stages. What exactly is your problem?

 

[lcaillo]

This is a horizontal sync issue, not vertical. The problem is very common on these sets and is usually either bad solder connections on the hyper module or bad caps on the hyper module. If you do not find bad solder connections on the oscilators change all of the 10uF and 22uF hyper module caps and test the rest for ESR.

 

[lcaillo]

All of the electrolytic caps in the hyper module are suspect and should be tested.

 

[lcaillo]

It is the board inside the sheild can right behind the input board.

 

[lcaillo]

Like I said, the hyper module is the board in the shield can right behind the input board when looking at the chassis from the back. The shield is soldered in and that solder has to be removed then the clips on the connectors on the main board can be released and the board snaps out.

 

[lcaillo]

Do not test them. Change all of them.

 

[lcaillo]

There may be sources. Check with Toshiba parts distributors like Encompass (formerly Tritronics & Vance Baldwin) or others for new parts or PTS or Tri-State Module for rebuilt parts. Pricing is unlikely to be to your liking if you can find the part.

It does not take expensive equipment, just patience and skill, to repair these boards.

 

[lcaillo]

When desoldering the old caps add some fresh solder to help. The solder on the board is low or no lead content and is very hard to get to release. If you add some 63/37 (preferred because of the lower melting point) or 60/40 lead solder it will lower the melting point and add the resin from the core and melt the existing solder much more easily.