In the little spare time I've had, been doing so qc on a 94hp before tucking it away in the radio closet. So I pulled the amp board to re grease the fets because the white playdo they use or don't use needed help throughout the whole chassis.
Neat little board for what it is but have a few questions. Bias to the fets is adjusted through vr2, but I can't find anything in the services manual as to what vr1 does.
Any idea about vr1?
Also, there's abilities on the board not used on this particular radio. I know this board is shared with other rangers so maybe the options are used there.
There's a location marked on/off that I'm referring to.
Anyone have an idea what that option is for?
Not looking to modify but for education purposes.
Neat little board for what it is but have a few questions. Bias to the fets is adjusted through vr2, but I can't find anything in the services manual as to what vr1 does.
Any idea about vr1?
Also, there's abilities on the board not used on this particular radio. I know this board is shared with other rangers so maybe the options are used there.
There's a location marked on/off that I'm referring to.
Anyone have an idea what that option is for?
Not looking to modify but for education purposes.
