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thks! recovered voltage by your suggestion. mic connector was corroded..now I have RX. but we return to the pll issue. ok. I have 10.240/10.245 USB/10.238 LSB pin 12 at 2.85V AC. I have 16.170-16.550 at TR20 collector at 8.2V DC (I can vary that 16Mhz frecuency If I turn up or down the L14 slug...

so how or not it would be to apply 8v to the circuit trace that supplies voltages to the tuning coils on that area?

thks..well, there is 5v at pin 11 of the pll. but think its not a pll problem after..reading the service manual and probing for correct voltages at each transistor, the RF amp stage is dead. TR 12, 13, 1, and those around are not getting voltage at their collectors. also noticed that the green...

Nomad, never used a osc..Tiny baby steps are welcome! but I can do whatever you say..its like learning to use a scope

I got the scope..it came before I expected Nomad..so how can I use it on this radio?

will replace caps just for this radio seems untouched..I will replace all caps Thursday

bit there is 5v at the PLL Vdd and 0 at Vss pins

and there is no 5v at the PLL pin 1

not that I noticed..I was seeing the ps amp meter and dont see any wierd amp consumption..like less than 0.5A..also touching aroung with my finger, no hot spots..well the audio chip is kind of warm, but I think its normal

Last year, somebody left on my porch a TRC-451..with a paper note saying "for you"..hopefully wasnt a death note since Im still alive.. K, I just left there around until yesterday..opened it up, of course driver and final were removed, but the radio seems pretty much intact..so put a 10m ant, no...

thks! I ordered a Hantek osc..never used an osc..so how do I use it on this radio?

btw, I will have a proper osc by 2 weeks I hope..so far using a TinySa I probed again the CPU pin 1, I see 4.5 MhZ at 2.30 Volts. the HTX10 service manuals indicates that voltage is correct. And Im not getting any signal from the 10.695 crystal..So how about D30 the VCO coil's varactor? what...

So just sat down today. the 4.5 signal is on IC pin 1 so far..also on X2. There is no signal on X3 either RX or TX..its supposed to have a 10.695 signal..btu..

Are you Radionut on YT?

the L14 slug is fine..I can turn it from top to bottom easy..I hear mostly 11m stations but turning to almost the top, I can hear CW and Brazilians AM ops at AM at 28.310

pretty sure I follow you on YT..always thought is this guy Norman Reduss? lol..I mean the voice..ok, lets go forward..TP3 showing 7.35 v anyway I adjust the VCO coil.

so lets fix this!

also to me a honor that you responded..I know you are legendary great! been following you on YT quite long..

I also have the Magnum 257 schematic which is so better than the HTX schematic..so were should I start?