Sony SLHF360 Bad Playback

Initially it looked like dirty heads but it turned out to be a little more serious, a servo trouble.

[@Musicradio77Network]

I have my Sony SLHF450 and it works great without any problems. I got it off of eBay last year when I first got it, it had a bad picture since the video head was dirty, but I checked and cleaned the heads and the picture looks perfect.

[@pederb82]

This exact kind of pumping of the image was mentioned in the text books at school when we learned to fix these things. I recognized the problem at once you had tried to clean the heads.

[@chezsnailez]

Used to have one of those, even had the service manual. Our had a similar issue as yours. Playback was flickering but recording was just fine. Had stopped using it around 2009.…

[@crashbandicoot4everr]

It's hard to believe Sony used these bad Sanyo caps on their 1981 model, and after that huge failure rate, they still insisted on using them on their 1988 model. What were they thinking? My 1983 SL-T30 and T50 also have one or two of them in the luminance/video circuit but playback and recording looks fine so I haven't touched them yet.

[@m9ovich785]

Nice Sleuthing Dave...

[@kyoudaiken]

These caps are probably not measuring to spec because they're leaking electrons. I bet Mr. Carlson's cap analyzing tool would show red or yellow.

[@woollysoxx]

Nice one!

[@livinlifetothefullest2750]

6:55

[@markmarkofkane8167]

Great 👍

[@warpedmetalhead]

Really interesting, thank you for this vid! I picked up 6 SL-HF400/600's and they all seem to pulse very similar to yours timing wise, except I am not having any visible glitching. I assumed that's just how this model was since they all do it, but now I'm wondering if they all have bad caps in the servo circuit or maybe those little yellow caps. hmm

[@ilanuriel2573]

How did you know that this is a component failure and not a potentiometer tune of servo lock required after all these years?

[@instantwow]

Thanks for demonstrating this with the florescent light. When the servo goes out of sync like this, does it happen on recordings for all speeds BI, BIi, BIII in a similar way. I’m guessing it is most sensitive on BIII?

[@ryans413]

Not through the video yet but my guess is bad compacitors.

[@steve5090406]

Love your work, but please use a lapel mic.

[@ViegasSilva]

7-Eleven

[@robbor353]

If you are filming, please put the AC off, the sound is therible