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Hello everybody,

I got this off flea bay as parts only- non working and they were right.
I recapped all electrolytics, sprayed all the switches with Deoxit and she roared to life in SSB mode receive, no transmit at all. Still had the stock driver and final, so I pulled them and checked with DMM and they show OK.
Read all the tech bulletins, and my production number was high enough all but one should have been made at the factory. I replaced TR5, a C1730,D26 and D2 and all receive including AM came alive.
Plus I changed out all C1419s for NTE152s. Checked my mic wiring since it is relay switched and all looked good. Plugged it in and as soon as I keyed, it all went dead, changed the fuse and just went ahead and swapped out for all new NTe152s again. Lights came back on and SSB receives but no AM, now when I key up the channel LEDs go out and meter lights go dim and no transmit. I have no idea what caused that to happen.

I know I am fighting different problems, but if someone could tell me or point me in the right directions, it would be greatly appreciated. I am about to pull what little hair out I have left. I just received my Sams copy, but it was printed before all the tech bulletins.
I have another NEC C1730 on its way, but at 7 bucks apiece, I would rather not pop another one.
   I am going to replace D26 and D2 again tonight, I have correct voltages on TR5 so hoping it will still be OK, but I have my doubts.

   Any help or suggestions will be greatly appreciated, it has never been modded and is bone stock.

   Thanks,   Mike

<blockquote data-quote="Sammitch" data-source="post: 583393" data-attributes="member: 43105">Hello everybody,&nbsp; &nbsp; &nbsp; I got this off flea bay as parts only- non working and they were right.I recapped all electrolytics, sprayed all the switches with Deoxit and she roared to life in SSB mode receive, no transmit at all. Still had the stock driver and final, so I pulled them and checked with DMM and they show OK.Read all the tech bulletins, and my production number was high enough all but one should have been made at the factory. I replaced TR5, a C1730,D26 and D2 and all receive including AM came alive.&nbsp; Plus I changed out all C1419s for NTE152s. Checked my mic wiring since it is relay switched and all looked good. Plugged it in and as soon as I keyed, it all went dead, changed the fuse and just went ahead and swapped out for all new NTe152s again.&nbsp; Lights came back on and SSB receives but no AM, now when I key up the channel LEDs go out and meter lights go dim and no transmit. I have no idea what caused that to happen.&nbsp; &nbsp; I know I am fighting different problems, but if someone could tell me or point me in the right directions, it would be greatly appreciated. I am about to pull what little hair out I have left. I just received my Sams copy, but it was printed before all the tech bulletins.I have another NEC C1730 on its way, but at 7 bucks apiece, I would rather not pop another one.&nbsp;&nbsp; I am going to replace D26 and D2 again tonight, I have correct voltages on TR5 so hoping it will still be OK, but I have my doubts.&nbsp; &nbsp;&nbsp; Any help or suggestions will be greatly appreciated, it has never been modded and is bone stock.&nbsp; &nbsp; &nbsp;&nbsp; Thanks,&nbsp;&nbsp; Mike</blockquote>

[QUOTE="Sammitch, post: 583393, member: 43105"] Hello everybody, I got this off flea bay as parts only- non working and they were right. I recapped all electrolytics, sprayed all the switches with Deoxit and she roared to life in SSB mode receive, no transmit at all. Still had the stock driver and final, so I pulled them and checked with DMM and they show OK. Read all the tech bulletins, and my production number was high enough all but one should have been made at the factory. I replaced TR5, a C1730,D26 and D2 and all receive including AM came alive. Plus I changed out all C1419s for NTE152s. Checked my mic wiring since it is relay switched and all looked good. Plugged it in and as soon as I keyed, it all went dead, changed the fuse and just went ahead and swapped out for all new NTe152s again. Lights came back on and SSB receives but no AM, now when I key up the channel LEDs go out and meter lights go dim and no transmit. I have no idea what caused that to happen. I know I am fighting different problems, but if someone could tell me or point me in the right directions, it would be greatly appreciated. I am about to pull what little hair out I have left. I just received my Sams copy, but it was printed before all the tech bulletins. I have another NEC C1730 on its way, but at 7 bucks apiece, I would rather not pop another one. I am going to replace D26 and D2 again tonight, I have correct voltages on TR5 so hoping it will still be OK, but I have my doubts. Any help or suggestions will be greatly appreciated, it has never been modded and is bone stock. Thanks, Mike [/QUOTE]

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