Trc457 alignment problem

[KneeBiter]

Virgin radio. Off freq a touch on ssb. Downloaded service manual here (thank you) manual says counter on tp6. Ch1. LSB. Adjust ct5 for 33.8526. Tp6 shows nothing. If I key mic and send tone through mic it reads 26.xxxx. what's the deal? Need advice.

 

[Dmans]

Above copied from the TRC-458 Manual. Looks different than your above post???
TP8 and 34.9825 Mhz

I have used this manual on several uPD858 SSB rigs with no issues.

73
David

 

[KneeBiter]

View attachment 57122

Above copied from the TRC-458 Manual. Looks different than your above post???
TP8 and 34.9825 Mhz

I have used this manual on several uPD858 SSB rigs with no issues.

73
David

Thank you. Will give thst a shot. Will report back.

 

[KneeBiter]

View attachment 57122

Above copied from the TRC-458 Manual. Looks different than your above post???
TP8 and 34.9825 Mhz

I have used this manual on several uPD858 SSB rigs with no issues.

73
David

Worked like a charm. Dead on. Sam's manual is a misprint. Thank you.

 

[Dmans]

Factory TRC-458 Service manual attached below.

73
David

 

[tramd]

Worked like a charm. Dead on. Sam's manual is a misprint. Thank you.

It's not that the SAMS is a misprint. The way they do it works well. It's that whatever you are using to touch to TP6 is pulling the signal down so the frequency counter doesn't see it. You have to either have a very sensitive frequency counter or use a not contact type probe (sniffer).

 

[KneeBiter]

It's not that the SAMS is a misprint. The way they do it works well. It's that whatever you are using to touch to TP6 is pulling the signal down so the frequency counter doesn't see it. You have to either have a very sensitive frequency counter or use a not contact type probe (sniffer).

Thanks for that info. I wonder if I put my probe through a disc cap if that would help. Either way I got it done. Now to decide if I unlock clarifier or leave it stock. Decisions Decisions.