#129

[@w.rustylane5650]

Once you swapped out that board, I was just certain that you would eventually fix that bad board. It's just not your nature to set it aside. What a challenge! Just don't waste too many components trying to fix it. When I unsolder using solder wick, I usually use some flux on the solder wick. I use resin flux which is a paste. That converter to the right of the one you're working on looks like it's toasted as well. I knew you would fix it. Great job, Peter. Cheers & 73 from W Rusty Lane K9POW in eastern Tennessee

[@TRXLab]

yeah it was too hard to leave it alone lol

[@zooyawk4526]

Your knowledge in this field is incredible. The choice you've made to take the time to share it with others is beyond commendable. Thanks Peter.

[@TRXLab]

Thanks for the kind feed-back. 73

[@guyh3403]

Wow. Your hot air soldering skills are amazing sir! Thanks for all these cool videos.

[@TRXLab]

Thanks for watching Hendrik 73

[@bloguetronica]

Nice repair! Excellent job! All the troubleshooting, as seen on the mentioned video, was worth it.

[@dennispeake1877]

WoW! Peter, what a hard job in the setup. Electronics is so small and this part had many stages to enable you, Peter, to get all parts working. Awesome video and thanks, mate.

[@TRXLab]

Yeah the parts are getting smaller and smaller whereby my eyes are getting worse and worse :-) Thanks for stopping in mate. 73

[@sh018q2316]

Hi Peter, just want to say thank you for your great videos. I’ve been using the Icom 7100 as my tutorial to repair a Icom 7300 which was over-volted. In my case there was no sign of any damaged components. In the end I had to replace the Power Amplifier board due to a short in the multilayer board, then change a buck converter and 8v volt regulators on the Mainboard. So thank you again and keep the videos going. Steve. M6KPP

[@TRXLab]

Ah very good! Thanks for your feed back! Great that you was able to fix the 7300! 73

[@thomascott7425]

Another job very well done. It is a pleasure to see you work on these rigs.

[@TRXLab]

Thank you Thomas! 73

[@bloguetronica]

So, did the owner chose to have the board repaired instead of replaced? It was fortunate that, all in all, a DC-DC converter and two chip inductors were damaged. Imagine that the DC-DC converter didn't failed safely, and took everything south with it. Kudos to Texas Instruments for that!

[@TimDyb]

I retired from TI after 25 years. Nice to hear good things like this, altho I was a test repair tech.

[@larryk4mu240]

Hi Peter, nice repair, glad you could save the board in working condition. 73

[@TRXLab]

Yeah you are right Larry always nice to save a board... Thanks for watching 73

[@TheRadioShop]

Very nice repair Peter. Thanks for showing your hot air skills. Well Done! You really mastered that. 73

[@TRXLab]

Thank you Buddy! unfortunately I lost the video part where the solder was melting...No idea why. Take care my friend 73

[@markanderson350]

Determination and skill paid off. Good work!

[@TRXLab]

Thank you Mark 73

[@markanderson350]

I am having a hard time adapting to tiny parts. Seems lots of senior techs are doing so very well.

[@glennstevenson6242]

I really enjoy your video's. Thank you very much for doing them to help us all learn.

[@TRXLab]

Thanks for watching Glenn 73

[@dinosworkshop6870]

Another great video----Just never give up on a project. A job well done !!!!!!!!!!!!!!

[@TRXLab]

Thanks Dino! 73

[@stopnwonow5044]

15:30 Waoohh, This is a watchmaker's job.. Is crazy to see dancing the little component..

[@bundylovess]

Nice repair Peter big thumbs up

[@TRXLab]

Thank you Allan 73

[@seanregan730]

Awesome repair Peter I was sure that board would have gone to the great radio graveyard in the sky all the best Sean

[@TRXLab]

Thank you Sean, we never give up.. 73

[@sincerelyyours7538]

Nice repair. Particularly enjoyed the trace through the schematic to arrive at the defective parts in the prior episode. In the end I think I would have added a small protector circuit, such as a 15V zener opening the NC contacts of a relay on the power inlet line, to prevent the over-voltage situation from recurring in the future.

[@TRXLab]

Glad that you like it and thanks for watching 73

[@drewsmith6066]

great vid ...and top soldering well dune.

[@TRXLab]

Thanks Drew 73

[@hamradio599]

Hello Peter, you did a very nice job on repairing. Noted that the operation voltage range of IC7100 is DC13.8V +/- 15% ( max. 15.87V ). Is it still safe if I fit it to 4 cells Li battery ( max. 16.8V ) ? Min. workable voltage of IC7100 is 10.5V. 3 cells Li battery can't be used. I saw the max. voltage of TPS62110 is 20V. Thank you!

[@DonDegidio]

Hi Peter, Amazing what can be accomplished with determination. FB getting the 7100 operational again. 73 WB3BJU

[@TRXLab]

Thank you Donald! 73

[@iw0hex]

Great video, nice to see how you solder this little guy :) Thanks, 73 de IW0HEX Pasquale.

[@TRXLab]

Yeah it is fun to do this little suckers lol.. Thanks for watching Pasquale. 73

[@RC-Heli835]

So did you keep the old board in the radio or the new sir? What temp did you do the air soldering at? Awesome work!😃

[@coltronex]

Superb,Prima Peter!!!

[@TRXLab]

Thanks Colin

[@linkinp496]

very good peter

[@TRXLab]

Thank you 73

[@WN8HGZ]

TRX Bench I really enjoy your videos I am old vacuum tube maintenance guy always hated throwing away a 500 board over 2.00 dollars in parts thanks please keep it up brian Wb8idy usa

[@TRXLab]

Glad that you like the video! Thanks for watching 73

[@mynameisbond224]

Hi, Maybe you can do a video about your soldering microscope. It is the Andonstar, when I'm right?. How is the display latency, is it good for soldering?.

[@johncliff5417]

Hi there Peter. Another job well done. Very good video showing how it's done correctly. See you later. 73 de John - G0WXU.

[@TRXLab]

Thanks John! 73

[@TheDefpom]

Nice repair, certainly an interesting one to try and sort out, although I would of heated the PCB before placing the part to get it warmed up better under the device. Personally I don't like solder wick, I find it harder to use, and as you had it tends to stick the the pads if not hot enough, I prefer to use solder sucker or vacuum desoldering iron.

[@TRXLab]

Well anyone has its own way but did you really ever cleaned SMD pads of this size with a solder sucker or vacuum desoldering iron?? The only way to get the surface for SMD's ready and nicely flat for a new component is with solder wick . 73

[@mikesradiorepair]

TRX Bench Pace makes a tip for their desoldering handpiece. It's called the Flo-D-Sodr tip. It's made specifically for cleaning off SMD pads. I speak from experience when I say it works flawlessly and makes for extremely fast solder cleanup and no chance of pad damage. I was sold the first time I used one.

[@TRXLab]

Wow that is interesting Mike, would you mind to make a little video about it. I have not seen a vacuum pump yet which can do the job probably..

[@mikesradiorepair]

TRX Bench Check your email. ;-)

[@thormusique]

Excellent work, thanks!

[@TRXLab]

Thank you 73

[@andrewrae2813]

Great job Peter...another mb kept from the landfill. 73s

[@TRXLab]

You are right Andrw, thanks for watching 73

[@paul.alarner6410]

is this video available in english too?.

[@claudioxw]

Great Peter.

[@TRXLab]

Thank you Claudio 73

[@dennisqwertyuiop]

Great work again, thank you for video

[@TRXLab]

It is always a honer if an expert likes my videos! Thank you Dennis 73

[@buset1974]

Wow u have a very good skill

[@TRXLab]

Thank you

[@zepplinc20]

I am wondering what temperature you have your hot air set at?

[@TRXLab]

It sits on 350°C for jobs like this. 73

[@adnanmalik7364]

nice peter another fer added to your skill

[@TRXLab]

Thank you Adnan! 73

[@JamesP6084]

Great second part Peter 73's

[@TRXLab]

Thank you Jim 73

[@obdanton69]

Hi TRX Bench, nice video. I've bought an IC7600 wich have seen overvoltage and i was looking at your video. It give me some hints were to start. I hope i get this one fixed.

[@TRXLab]

Good luck with the project 73

[@ronlouis3011]

How much did the main board cost, and what did you do with the new one?

[@TRXLab]

The new one is in the radio and this is now a spare one 73

[@Mazeisaspace]

Nice work what scope are you using...looking for one. All the best.

[@TRXLab]

It is a Rigol ..

[@Mazeisaspace]

thanks for the reply :9 what i meant was actually what microscope/zoom camera thingy. @@TRXLab

[@AndrewMurphy8383]

what is the device u use for close up of the pcb board

[@TRXLab]

Hi Andrew it is a HDMI microscope camera. 73

[@AndrewMurphy8383]

thanks i might have to find one those i have suck bad eyesite that i think it would help. one more question if you dont mind i dont have alot of money to be buying test equipment why would you recomend for a besic set up for some one who want to fix his own electronics

[@TRXLab]

Andrew may be the series from The Radio Mechanic is helpful for you kzbin.info/www/bejne/bKTEZqetpatnatE

[@johnbellas490]

Good Video Peter!! Just one question, When you mention the number 0603 does that pertain to the measurement of the part/device in millimeters example- 3 millimeters by 6 millimeters ?? I admire your skills in this video very much !!! John A Bellas ---------- KC2UVN.

[@TRXLab]

Hi John, no 0603 means 1,6mm by 0,8mm and the required part is a 0201 which is 0,6 by 0,3 mm.. Thanks for watching 73

[@PapasDino]

Great job Peter! Did you use hot glue or Kapton tape to hold down the bodge wire?

[@TRXLab]

I use a special coloured hot glue for this job, Dino. Thanks for watching 73

[@karenmorrison8640]

Dino Papas

[@scottlundy257]

With all you hear about heat on computer parts yet you heat the chip hot enough to melt solder but the chip still works ?

[@TRXLab]

Well Scott there are to much bull shit out there...but anyway one point is true components should not get overheated and if you want to do it perfectly right you need to follow the temperature profile given by the factory. other than that this chips are produced to get heat from above like all BGA chips... 73

[@llsdigitek]

Excellent videos, learned a lot. Thanks! Lloyd - W9NLA

[@TRXLab]

Glad that you like it Lloyd 73

[@jjl6519]

thanks for another great video.

[@TRXLab]

Thank you Joe...73

[@jamesschaffner4916]

Wunderbar!

[@highdefdinardo]

hi peter. I just started watching your series. I was looking into getting a 7100 for use in my vehicle. I've been reading reviews steadily for the past few weeks, and i would value your opinion more than anyone else. do you think this is a good radio for mobile use?

[@TRXLab]

Hi Anthony, we have some OM's here using the rig in the car and no known problems for mobile use so far.. Thanks for watching 73

[@OldSkoolF]

Kinda rough with the wick there... Finish first with Finesse.

[@bigfoottoo2841]

Good work

[@TRXLab]

Thank you Ben 73

[@stevemobile1]

i have ic7100.. very unusual problem when try to power off or reset it freezes also wont read any sd card any thoughts anyone.appreciate any help

[@jassimali4082]

Hi , i own icom 706mkiig us version, the hf tx/rx are defect i mean not transmit and receive any signal but the v/uhf works will ! The question is can i send the devise to you for repair it due to no workshop in my country , if you agree write down your email to discuss that with you :) Thanks

[@davidgaleski5303]

thank you

[@TRXLab]

Thanks for watching David 73

[@MrFelatio1]

Realy ?

[@CT1JRZ]

Always super! 73

[@TRXLab]

Thank you 73

[@1112223333111]

16:50 you could have gone diagonal top left to bottom right

[@TRXLab]

of course many ways are possible..

[@What-is-thehandle]

@ 5:10 needs more flux probably.

[@toykry7931]

Complimenti per i tuoi video ..peccato che riesco a capire poco audio xche nn capisco bene inglese .. Ciaooooo

[@charliem.9998]

Hallo Peter, ich habe Ihnen eine E-Mail wegen einem Reparaturauftrag geschickt. Könnten Sie mir bitte antworten. Herzlichen Dank!!

[@modex20]

all that talking and prep and preheating etc etc and he SKIPS OVER THE PART WHERE THE SOLDER MELTS!

[@1112223333111]

if you watch hamradiotag channel, he is making it look easy...keep the braid moving

[@TRXLab]

it is easy with the right solder iron temperature. Mine was set to low...73

[@Markus-ch3ey]

More Flux:)

[@TRXLab]

you never can use enough flux :^) 73