#130

[@robwebster7406]

A very honest person, wish there were more Techs like you around :) Great work :)

[@TRXLab]

Thanks for the kind feed-back Rob. 73

[@w.rustylane5650]

I couldn't find part 1 so I'm picking it up from here. Can't wait to see the results. Guess it doesn't matter if pins are shorted when tacking it down. I hope I don't see magic smoke! What, if making all the repairs and the customer can't afford the repair, what then??? Seeing the main processor would be quite expensive, would the repair continue? Guess that's up to the customer. If it were me, I'd be trying to find another board and not worry with component replacement. Thanks for the video. Cheers & 73 from W Rusty Lane K9POW in eastern Tennessee

[@Beretta96Dan]

Very interesting video, Peter. Thanks for taking us on this ride. Looking forward to Part 3. Best 73...Dan w4mnc

[@TRXLab]

Thank you Dan 73

[@dixsusu]

Thanks for taking us on this ride .73!

[@TRXLab]

Thanks for watching 73

[@dennisqwertyuiop]

Great work so far too bad the owner said put in a new board to save you lots of time thank you for video hope to see next, the soldering you did looks better than factory !

[@TRXLab]

Yeah you are right Dennis but this is a kind of show case to demonstrate what's all behind a repair and what are the possible ways to go. But the OM would really like to get the radio back working ...Thanks for comment 73

[@mrkattm]

Peter I am really enjoying these last few case studies on trouble shooting and repair. Here in the states one can pick up a working 706 MKiig for around $400.00 US (plus or minus $50) and even cheaper if you are willing to put up with some cosmetic issues, I got mine for $250.00. Would it be possible for you to share the cost of the components and your time that you have in this radio? My guess is that you are way past the break even point by now. Thanks again for sharing, you are one of the best out here, keep up the great work!!!

[@TRXLab]

Hi Michael, this is no economical repair it is a case study here for my channel. I just wanted to demonstrate what all has to be considered and if at the end we have a working radio all are happy hopefully :^) Thanks for watching 73

[@darrenolafson5266]

The scope trace for the collector of Q71 had no signal. Could if be caused by one of the other components in the output path being open or shorted? Thanks for the excellent videos.

[@TRXLab]

Yes that is a point Darren but of course I have tested it...Thanks for comment 73

[@TheDefpom]

Should that fan be running ?

[@TRXLab]

No not with a cold unit

[@majordisappointment8692]

Nice job soldering yes it is an old radio but there are some that love it no matter the problems arise.

[@TRXLab]

Thank you. Yes some OM's love the radio 73

[@raccoonnyc]

I think I would have given a price to the customer based on the failure of both IC's and let them decide if they want to pay for the worst case scenario. That way you avoid the conflict caused from charging the customer for something that is not fixed. Enjoyed the video. I always learn a lot.I also learned that customers might be nicer in Germany than they are in NYC :)

[@TRXLab]

Yes under normal circumstances you are right to keep a repair somewhat economical.. Thanks for comment 73

[@JamesP6084]

Looking forward to part 3 Peter. :-)

[@TRXLab]

Waiting still for parts availability information. Thanks for stopping in Jim 73

[@DonDegidio]

Hi Peter, Good video showing your thoughts on how to proceed with the repairs. If it was my radio, I would go ahead and let you get replacements for both of those IC's. If there were more problems after they were replaced, I would cut my losses and give up unless a complete working used board could be found. I do like Buddy's suggestion if a loaner board could be found just to confirm no problems with the rest of the radio. 73 WB3BJU

[@TRXLab]

Yes I agree Donald maximum the both repairs and then we need to stop...Thanks for watching 73

[@TheDefpom]

Based on the voltage regulator being replaced, I would be looking only at all the parts that it supplied, that inductor being high resistance said to me it had been stressed so was almost certain the ic was damaged. I would say that anything that would be damaged by excessive voltage after that regulator will need replacing (and likely nothing else), so yes replace both those ics, I think the issue is localized.

[@TRXLab]

I have to see what parts I can still get..

[@mikesradiorepair]

Much like a rabbit hole, you don't know how deep it is until you dive in. Since you have gone this far and as long as the supply voltages to it look ok I would probably go with replacing it. Still no guarantee that's all that's wrong. Look on the bright side, your definitely getting some SMD soldering practice in on this one. :-)

[@TRXLab]

It is a rabbit hole as we can not really predict what's next :^) But we never can have enough practices on micro soldering right?

[@iw0hex]

Thanks Peter, great video as usually. Greetings, Pasquale IW0HEX

[@TRXLab]

Always glad to see you my friend! Take care 73

[@TheRadioShop]

Peter, I agree with your thought process on going further. If 101 is replaced then what is next? Perhaps another major failure. You never know. Enjoyed it as always. Very nice video my friend. 73..

[@TheRadioShop]

One other thing. If you can get a loaner board to try that would really help.

[@TRXLab]

Thank you Buddy. Yes you are right with the loaner and I had already a working PLL board in and the radio is working perfect.. Thanks for stopping by my friend. 73

[@Motorman2112]

I have my PC monitor just above my own DS1054Z. I am sitting here reading the data code from a garage door remote that was dropped in the sea. I just tried to read the screen on your oscilloscope instead of mine. :)

[@TRXLab]

LOL so it goes..Thanks for comment

[@jfrede1976]

It would niche to know the approximate prices for the DDS chips to estimate whether such a repair is worthwhile.

[@geraldwilcox2427]

Looks like your 100 leg IC has solder shorts on the pins.

[@stevec5000]

Can you start listing the prices of repair parts like that big IC you ordered from the manufacturer so we can get an idea of how much repairs will cost for things like that? That model radio costs $700-$800 on eBay so probably worth fixing except they have the dreaded SMD electrolytic capacitors.

[@TRXLab]

Yes this radios are still for far to much money on the net but this radios are not worth 700$...

[@pu1ypj]

Hi, what's is this SSB Lab monitor?

[@systemloc]

He built it himself. It is in an earlier episode if you want to see him make it

[@TRXLab]

Felipe watch video #17; #18 and 19 and you have all needed infos 73

[@pu1ypj]

I got it! Many thanks.

[@jjl6519]

Thanks for a very interesting video.

[@TRXLab]

Thanks for watching Joe 73

[@MrCarlsonsLab]

First :^) LOL, Hi Peter!

[@TRXLab]

LOL Glad to see you Paul. Can't follow up everything but I guess you know this as well :-)

[@Scott-K7sce]

it would make more sense to have a new board installed along with those new bits on the board then spending days chasing faults, From a economical sense. considering the age of the radio in question

[@TRXLab]

Scott you are right economically it makes no sense. This case is more for showing the process behind it. Thanks for stopping by 73

[@drewsmith6066]

good vid again thanks.

[@TRXLab]

Thanks Drew 73

[@davidgaleski5303]

thank you

[@joeburch9515]

anyone ever hear about the Gunning Fox Index?

[@Nermash]

Peter, there is someone on YT called William Perez stealing your content!

[@TRXLab]

Thank you, I have already seen it 73

[@wurzelsepp365]

Warum sprechen sie alles in Englisch

[@Werlaf]

Möglicherweise weil ein Großteil der Abonnenten aus dem nicht deutschsprachigen Raum kommt. Klingt logisch, oder?

[@TRXLab]

Ja es sind sogar über 70% aller Abos die von der Muttersprache Englisch sind und nur ca. 3-5% die deutschsprachig sind. Somit liegt die Antwort auf der Hand... Herzliche Grüße und 73

[@paublusamericanus292]

too much information. this radio may never work right, for a long time. odds are negative. and I just saw your negative repair attempt, assuming this radio. so I was correct, but shoot.

[@TRXLab]

LOL yeah sometimes it is odd. Thanks for watching 73