Sharp 32JW73H GA20 Chassis R622 3.9k location

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Hi, I have a sharp 32JW73H (GA20 chassis) with poor horizontal synch.
I've found out thru Euras that R622 3.9k is the likely culprit.

I can't find the location for this set. I don't have a manual and would prefer not to purchase just for the location. R620-621-623-624 I can find but R622 is doing my head in.
I had a lupe on it for 20 mins but still couldn't find it.
Any help appreciated.