Ham International Jumbo Mk1

[JC_enfield]

Does anyone have or know where i can get a good allignment document/service doc for the HaM International Jumbo?

Ive got one which needs the audio looking at and also is 3Khz off frequency

i found a document on CB trix but to be honest wasnt too much good.

Thanks

The board the the Jumbo has is a Cybernet PTBM058 or PTBM059

 

[IMD262]

HAM International CB-Radio

 

[IMD262]

The service manual gives all the information you need to know,If you're unsure how to use the information or do not have the proper test equiptment I suggest sending it to the rig doctor.

 

[JC_enfield]

Thanks IMD262 but thats for the Jumbo 3 and I need documents etc on the Mk1 as the board is different

The jumbo 3 has the Cybernet PTBM133A4X

The jumbo I have uses the Cybernet PTBM059COX which I am lead to believe is the same board etc as the Ham International Multimode II

now I have this Ham International Jumbo

I had used that service guide last night but its not very clear when it comes to setting the LSB and USB offset oscilators. I can obtaine the correct frequency on TP4 with the band selector set to low but it wont change when put on MiD or High

 

[bob85]

this should do it

PTBM059COX Service Manual

 

[jb3154]

Thanks IMD262 but thats for the Jumbo 3 and I need documents etc on the Mk1 as the board is different

The jumbo 3 has the Cybernet PTBM133A4X

The jumbo I have uses the Cybernet PTBM059COX which I am lead to believe is the same board etc as the Ham International Multimode II

now I have this Ham International Jumbo

I had used that service guide last night but its not very clear when it comes to setting the LSB and USB offset oscilators. I can obtaine the correct frequency on TP4 with the band selector set to low but it wont change when put on MiD or High

I have a Jumbo here on my desk. Its a nice radio , the only thing wrong with mine is one of my lights behind one meter is out. I get good reports on modulation with a power mike .

 

[Gary Birch]

I have a jumbo mk1 some screwdriver jocky has been inside it and messed up all the wiring can anyone help with a wiring diagram.

Many thanks in advance

 

[unit_399]

Contact Lou Franklin at CBCity International. He sells reprints of the Cybernet manuals for the various Jumbo models. (888-434-9227)

- 399