Having a very tuff time finding schematics and any information in general any one have a leed it was made in Japan that might be part of the problem.
Well, i see that someone has and original paper service manual on eBay er… but the price is very steep if you ask me: https://www.ebay.com/itm/187738666196
I found this schematic, not sure if it’s what you want. [img] 
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Looks like it’s for model 224 not 234.
@rs-electron The 224 Schematic is still very likely to apply (be useful) since looking at the front cover of the original (paper) service manual that is for sale on eBay it looks not only to have the exact same number of vacuum tubes (11) but their part number seems identical as well. 
the owner has sticker shock and i cant realy argue with him however it does seem wise to have this manual befor we start diging in to this thing.