[Motorola] Saber I

[Glenn Little WB4UIV]

Is there a Saber I service manual that includes component level information?
Is there a manual that includes block diagrams and module pin numbers?
I realize that the Saber I manuals are probably no longer available 
from Motorola.
I have two VHF Saber I's that when I read the codeplug, I get a 
checksum warning.
When I look at the channel information the receiver or the transmit 
frequency may be an illegal frequency.
When I fix the bad frequencies and reprogram the codeplug, there is 
other corrupt frequency data.
The RSS indicates that the radio is downloading tuning information 
for 255 channels when I save the data to the codeplug.
I suspect that i have a very corrupt radio.

Any advice??

Thanks
73
Glenn
WB4UIV