Creek 5350 SE, Channel Dropout

I have a Creek 5350 SE Integrated Amplifier that has served me incredibly well for over a decade in my modest Bedroom system. However; I'm now experiencing intermittant channel dropout more and more frequently. Making it difficult to pinpoint is the fact that it can happen in either channel at different times with various source signals (TV, Cds, FM, DVDs). The sound at first crackles, distorts and then stops completely until I rap the unit with my knuckle for a moment and then, sometimes, the sound returns as it should (or not). I want to save my knuckles and spare the amp. I've eliminated all of the external possibilities such as interconnects, speaker cables and other components. I'm sure it's the amplifier in some way.

I found a thread here on Audiogon that identifies a possible problem with the ribbon cable wiring inside the amplifier? A suggested possible solution was to substitute the ribbon cable with point to point wiring instead.

As an experienced former lab tech, I believe I'm capable of performing this mod if it's a good idea?

MY QUESTION: Can anyone reccomend a high quality wire, solder and source for these items to use in this mod that would replace the ribbon cable?

Any additional experience you can share regarding this complaint would be most appreciated. I really love this amp and would gladly go the distance to make it last another 10 years or more.

I thank you in advance for your wisdom and experience.

Very Sincerely,

REL2

PS Does anyone have a schematic for this unit? I can't find one anywhere.