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need a wiring diagram or schematic for 1990 mercruiser alpha one power trim motor

my 1990 manual shows a 110Amp fuse right on the buss across the two trim relays - the battery + cable attaches to the fuse.

The 20A breaker or 20A fuse (depending on model) is further along- in the wiring going to the shifter for the trim switches

but either fuse opening would make the trim system quit
 
thanks for the help guys but we got it fixed, it was on my buddies boat that he just switched from a sbc alpha to bbc bravo and the trim positions senders were so far out of adjustment that it was killing power to the trim motor because it thought it was up as high as it could go, who would have thunk it, lol
 
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