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Horizontal Shift on a Sony FDT-5BX5

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Apr 1, 2019, 10:21 PM

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Horizontal Shift on a Sony FDT-5BX5

I have a small Sony TV model FDT-5BX5 which has a horizontal shift issue.

I have located potentiometers for the h-size, v-size, pin amp and pin phase, but there is no v-pos or h-pos. (at least nothing labeled as such)

I understand that sometimes h-pos is also handled sometimes by a switch or a jumper, but I can't find that either.

Can anyone help me to identify the faulty component, or something I can adjust to fix the issue?

There is what I would describe as a loud whine that I think is coming from a transformer on the power stage board. There is a pot marked "RV-601" which appears to be close to this small transformer. I didn't want to adjust it without knowing what it would do, but here's a couple pics. I have pics of all the boards if required for me to post.

Any help that can be offered is appreciated!

(This post was edited by vol.2 on Apr 1, 2019, 10:48 PM)