#280

[@Marty48034]

Yaesu really dropped the ball here. Customers would be MUCH happier with the HDMI jack and none of this drama. It is was a mistake for them. Great video. Thank you.

[@arekx]

HDMI also provides voltage. If Yaesu implemented dvi badly then they could do bad hdmi implementation, too.

[@namvet-l8m]

In my younger days as an ET, I was checking a tiny resistor like that and when I checked it with a meter, it read OK. Chased my tail for a while, everything pointed to that resistor being open, yet it read OK. Then, I connected my meter leads to adjacent components connected to that resistor (11:45) and it read open! The pushing together of the meter leads on the resistor was enough to push the cracked resistor together and allowed it to read OK. I learned a valuable lesson that day.

[@G3PWP]

Thank you for a superb video production Peter

[@blackknight1397]

God’s Blessings on that fix! That’s going to make a lot of FT-10DX users happy ❤

[@OleF112]

Nice work, Peter. I guess, Yaesu´s choice for DVI was the licence fee for HDMI. There is no other good reason in my opinion. Saving 1.5 USD each TRX is more important than satisfied customers...the bean counters took over ;-) Thank you for a nice vid - again. Genieß den Herbst, ideal für viele schöne Videos, Peter. Bleib gesund und 73 de Olaf.

[@TRXLab]

Hi Olaf, don't exactly know what license fees for HDMI cost but however it is always about money for sure....Alle Gute für dich und bleib gesund.

[@Larry-AK0Z]

@@TRXLab US$0.15 for each end-user licensed product. US$0.05 - If the HDMI logo is used on the product and promotional material, the per-unit fee drops from US$0.15 to US$0.05. Use of HDMI logo requires compliance testing.

[@Rubedo777]

That was superb ✅ I am not an engineer but appreciate your skill 💯% You are a very good presenter 💥 ✨ 💙

[@Yannis..]

Thank you very much Peter, I will definitely buy a DVI monitor for my brand new FTDX-10 radio !!!

[@jerrykr7kz]

You are the very best radio repairman on KZbin!!! I love watching you.

[@regularuser492]

Hochachtung Peter und Danke !

[@chevyguy1128]

Another nice repair video excellent soldering skills especially dealing with surface mount components.

[@johncundiss9098]

I did not know that an adapter could do that. I did not know there was a 5 volt line going through the DVI ether. Good to know. Thank you for the peek inside as well.

[@SMShannon55]

Instead of replacing the fuse with another fuse, could it be replaced with a resettable “fuse” or circuit breaker?

[@sporsterini]

Thank you for sharing your technical experience with the Yaesu FTDX-10 external video display issues. I was going to purchase this model until I heard about the external video issues. Now I feel more confident about ordering one. I really need to learn how to solder SMT components. I have a SMT repair station.

[@maxwalker4659]

Peter, thanks for your reply. Because pin 14 had 5v I assumed the chip would not be faulty and that's why I asked for your advice. Thanks again for your time.

[@davidbrowne1588]

Hi The 5V is put to pin 14 of the dvi socket after the dvi/hdmi chip , so the chip can be bad, it is that this one is lucky the fuse did its job, i have 5v on pin 14 but no output on the dvi socket, Dave

[@davidbrowne1588]

Hi Did you Fix your radio, and was it the chip, Thanks Dave

[@maxwalker4659]

@@davidbrowne1588 Hi, no I haven't done anything as I have to send my radio 1 thousand klms for repair. I will just live with it as it's too risky to post in the mail. I thought using the correct DVI cable would eliminate this problem, not so.

[@davidbrowne1588]

@@maxwalker4659 Hi max, were are you, I have just ordered 10 chips, they are very cheap, Dave UK

[@syfr]

Very nice job! Well done and well documented, many thanks

[@DennyInDurham]

Thanks for confirming what many of us thought. My only quibble is, it isn't a bad DVI-HDMI "adapter" problem (it's not an adapter, it's a pin mapping documented in the HDMI spec), it's Yaesu's design, specifically that fuse value. Since the spec calls for both hot-pluggability and for the source (the FTDX10) to actually power some monitor circuitry when the monitor isn't on, that fuse needs to take that into consideration.

[@TRXLab]

Well, yes and no... There are obviously DVI/ HDMI adapters on the market which simply are consuming more current than others. If you have such a" high consumer" that is bad...

[@DennyInDurham]

The "adapter" doesn't consume any power at all... they are (by spec) just straight-through cables no more active than a DVI-DVI cable... the actual device (DVI or HDMI) may consume within a permitted limit of steady-state current, which is different when the device is off (or not plugged in) or on. The hot-plug requirement means the fuse must survive brief inrush current (be slo-blow). The FTDX10 design obviously didn't take this into account.

[@PacTel54321]

Great work! The fuse, F1801 is rated at 630mA up to 70C. However, the diode, RB521S-30 at D1800 is only rated at a maximum continuous current of 200mA. So really, the DVI circuit cannot safely supply more than 200mA of 5V. It’s interesting to see that the latest Yaesu FT-710, which has a similar DVI circuit, uses a “PolySwitch” resettable fuse with a hold current of 350mA at 60C and trip current of 700mA. The diode at D1800 has also been changed to a RB160M-30, with a maximum rated continuous current of 1A. So, it looks like the FT-710 can safely provide up to 350mA of 5V. The latest FT-710 also added a TVS network on the DDC_SCL & SDA lines.

[@georget7047]

I have a FT-710. I have been using an external display with a DVI to VGA adaptor with no issues. I haven't used the transceiver for about three months and when recently I switched it on there was no input to the external monitor. Regrettably searching through the internet I discovered that I shouldn't use an adaptor. I connected another old Philips monitor that I borrowed from a friend this time using a DVI -DVI cable and using the DVI connector instead of the VGA ,the monitor displays the transceiver screen albeit a somewhat shaky image. So I bought a used DVI monitor to find out that I do not get any input to it. I exchanged it with another one and got the same results. Only on the old Philips monitor I get connected. I suspect that an internal damage has occured. However nothing is mentioned in the manual to notify users against using adapters. You say FT-710 has a resetable fuse. Can you please comment on my issue?

[@PacTel54321]

The latest FT-710s have the Poly-Switch resettable fuse. I don’t know if there were earlier versions with something different. With the bottom cover removed, the Poly Switch “fuse” is located very close to the DVI connector, labeled J1803. The one on mine is green, is approximately 4.5 x 3.3mm and labeled with “5 X 5”; the second 5 is upside-down and the “X” isn’t exactly an X. The part is Littlefuse “miniSMDC050F”. You can find the data sheet online at DigiKey or Mouser. The “resettable” fuse is more like a self-recoverable fuse. When the fault is removed, the “switch” closes again. From the datasheet, “These devices are intended for protection against damage caused by occasional overcurrent or overtemperature fault conditions and should not be used when repeated fault conditions or prolonged trip events are anticipated.” In this video, the fuse (not a poly-switch) is determined to be open by observing no voltage at the output, but with nothing connected, if the Poly-Switch was bad, it may still possibly show voltage if it failed high resistance. I would measure the voltage while the converter is connected. Also, I wonder if the monitor that “kind-of” works is still trying to process video without 5V present, OR the 5V is there, but the signals are bad because the chip went south.

[@terryb3511]

I just saw your video and it's really good. Thank you. Would you share what soldering flux use? Thanks

[@tomkissinger83]

What is the part number for this fuse?

[@montygore1200]

Thank you Peter. I have not seen this radio yet.

[@hancecrawford]

Hi peter thanks once again for another video the owner was lucky it was only that tiny fuse and not the chip electronic have got smaller in size must be hard for you to see such tiny things hard for the eye to see them.

[@TRXLab]

yes, without microscope it is impossible to those repairs..

[@harryszwergstatt2879]

Sehr lehrreiches Video. Ich werde sogleich diesen Kanal abonnieren. Denn hier habe ich den Eindruck dass hier jemand definitiv weiß was er tut👍

[@wolfhawg]

Thanks Peter. Great job. 73s

[@JxH]

I really wish that Yaesu would "JUST" sell an 'Approved' DVI-to-HDMI adapter. Or at least "JUST" publish a white paper on exactly what to do, perhaps making sure that the adapter has such-and-such characteristics. It's all madness. Edited to add "JUST" in 2 places. Somehow the word "JUST" makes it all okay.

[@JohnFT3414]

Just buy a monitor with both hdmi and dvi Jack's. 24 inch ASUS worked for me.😊

[@gregpgparach810]

@@JohnFT3414 I'm out of wall space. It just doesn't make sense that Yaesu can't recommend an adapter. Do they know the spec or not?!?

[@chickennugget3362]

Thanks for this mate. My weekend TRX lab fix!

[@yllib68]

Great video Peter!! Hey, could you tell us what that tool was that you actually pulled the fuse with and also what flux you used please?? Thanks.

[@bairamzubi280]

Thanksfor that, i tryed open myft 710, but i guess this fuse is on the otherside......any advice? What do u think if a give 5volts on pin14 on the cable from an external source???the monitor should work, shoundn't it?

[@jamesseaman2950]

The +5 volt on pin-14 is there to keep the monitor awake. If it disappears, any display thinks the DVI source is turned off which puts the display into sleep mode.

[@bairamzubi280]

so can i short it? today my monitor won't go on :(

[@DonDegidio]

Hi Peter, I had heard that there are only a few HDMI - DVI adapters that will work with the FTdx10. Glad I still have a DVI monitor available. Stay safe. 73 WJ3U

[@TRXLab]

Yeah, we have not look into it yet, but some DVI/HDMI adapters seems to draw more current than others. That would explain it..

[@azarellediaz4892]

This is a repair I’m able to perform, the only problem is, where can I source this fuse from and what value is it? On the schematic it shows it is a 0.63A fuse but it doesn’t show the voltage or if it’s a slow blow or fast fuse. 73 WP4TGK D. C.

[@BrianCarrick-i9f]

Just replace it with a jumper, it'll be fiiiine. JK. PLEASE DON'T DO THAT!

[@georget7047]

Hello, I have been using an external display with a DVI to VGA adaptor with no issues. I haven't used the transceiver for about three months and when recently I switched it on there was no input to the external monitor. Regrettably searching through the internet I discovered that I shouldn't use an adaptor. I connected another old Philips monitor that I borrowed from a friend this time using a DVI -DVI cable and using the DVI connector instead of the VGA and the monitor displays the transceiver screen albeit a somewhat shaky image. So I bought a used DVI monitor to find out that I do not get any input to it. I exchanged it with another one and got the same results. Only on the old Philips monitor I get connected. I suspect that an internal damage has occured. However nothing is mentioned in the manual to notify users against using adapters. Can you please comment on my issue and advise for further actions?

[@bigchew3149]

what is the value of that fuse are they just 1a or 2,,3,or 5A fuses? Thanks !

[@brucekempf4648]

Is there an adapter sold on Amazon that you can recommend that will be 100% safe to use?

[@13EL121]

Wie immer ein top Video, Peter. 👍Schön dass du dich an den FTDX10 ran traust, den Fehler und die Lösung präsentierst. Habe selber einen FTDX10 der eine Reparatur benötigt. Das Gerät hat eine miserabele SSB Modulation. Leider ist die Garantie bereits erloschen, da es ein Erbstück ist. Leider scheint sich keiner an das Gerät ran zu trauen. Alle meine Anfragen blieben unbeantwortet. Vy 73 Ralf

[@TRXLab]

Hallo Ralf, schau mal welche Firmware auf dem Gerät ist. Sollte es die erste sein (1.0), kann das der Grund sein. In diesem Fall Total Reset und dann die neue Firmware drauf. zu 25% aller Fälle ist es damit erledigt...

[@13EL121]

@@TRXLab Hallo Peter, vielen Dank für deine Antwort. Firmware ist die neueste verfügbare. Ich werde das Gerät demnächst mal an anderer Stelle testen mit anderem Netzteil und anderer Umgebung. Das Problem tritt auch am Dummy auf, unabhängig von Mikrofon oder Sendeleistung. Vielleicht sind es ja tatsächlich äußerliche Einflüsse?🙈 Ansonsten muss ich mir eine sinnvolle "Verwertung" einfallen lassen. 😉 Schönen Sonntag und Vy 73, Ralf

[@TRXLab]

wenn die neuste Firmware drauf ist, sonst keine äußeren Einflüsse zu finden sind, wird es eng. Es gibt dann im Prinzip nur noch 2 Fehlerquellen. 1. Ref Ozil. 250 MHZ an TP1097 Main Board. Da reichen schon mehr als 30 Hz Toleranz, um das auf SSB zu hören. Je größer das Delta, desto schlechter SSB. 2. Da es keine SSB Komponenten im analogen Teil des Gerätes gibt, wäre das dann ein Fehler des SDR FPGA. Das wiederum glaube ich nicht an erster Stelle, da ja alle anderen Modulationsarten funktionieren....

[@13EL121]

@@TRXLab danke für die Hinweise lieber Peter. Der 250er ref. Oszi scheint leider nicht das Problem zu sein. Die SSB Modulation klingt eher wie "FM'ing". Ruheströme der Endstufen oder einer der (Vortreiber/Treiber) bzw Endstufentransistoren könnte ich mir vorstellen. Leider will sich niemand der Sache annehmen. Ich habe auch keine Hinweise von den Hinterbliebenen erhalten wo dass Gerät erworben wurde. Im Endeffekt wird es wohl leider ein teurer Türstopper. 😔 Wünsche dir einen schönen Sonntag und freue mich auf baldige neue Videos von dir. 73, Ralf DO7RU

[@wellseewho]

Can't we just feed +5v to pin 14 of the DVI port and cut the trace to the fuse if it's not already blown? Isn't that the same effect? Isolating the chip from being damaged while supplying +5v to the display and keep it awake. That seems to me is a rather simple soldering job if you have a steady hand and a magnifying glass. Or replacing the fuse with a, say 20 or 50 ohm, resister?

[@davidautry4857]

Great video as always! What brand/type flux do you use?

[@TRXLab]

Amtech Tacky flux

[@ouijim]

Popular radio. I own Yaesu FTDX10. I've read about problems with external display connection. Seems this may be common problem and solution. Thank You.

[@johnmckeen2757]

I have broke my mic socket on my yasue Ft dx 10 can I still use the radio till I get it fixed

[@miranovak8098]

Where can i download the schematic from?

[@TKomoski]

What would you charge for a repair like this Peter *?* *Cheers* *73*

[@fspidersuk]

My ftdx10 developed a dead touch screen (mouse and dvi monitor fine) after being connected to dvi monitor for a few days. Yaesu replacing screen display and say it could be a floating earth between monitor and radio issue. I struggle to see this as monitor/PC/radio/antenna/dvi-dvi cable are all grounded. Perfect continuity between all. It's an old Dell dvi/vga monitor and the cable is dvi-dvi. At £400 a go for repair i can't afford it to happen again. My question is... Is there a certain method to using monitor/radio? As in switch monitor on last/first or disconnect/connect monitor via radio before switching on monitor. Is there a sequence that safely works? Regards.

[@bblod4896]

I know it's Saturday when Peter posts a video; thanks.

[@Area51-t5n]

Good job, I am looking to buy one of these myself . Questions , do you think a problem with a external monitor or cable blew the fuse , such as a short to ground ? Also could you check the output side of the fuse for a hard ground before replacement . Just some of my thought as a diagnostic tech , more then likely , something blew that fuse.

[@TRXLab]

Yes most time it happens due to bad monitor cable or a bad monitor itself, both can create a short to ground which will then blow the fuse...Hope to see some videos in the future on your channel..

[@charliem.9998]

I love these videos of Peter and Olaf ... 73s de DL6RDE / AA1KD, Charlie

[@carlospopelier]

Wat is name of the soldering flux

[@davidbrowne1588]

Hi Peter, I have just got myself a FTDX-10 and yes when i tested it there was no video from the DVI-D Port so i hopped it would be the same as this one, but no, the 5v on pin 14 is good, i all so tested all of the resisters around the dvi chip and all ok, also there is 3.3v to the chip, so it looks like it is the chip, when i was testing with a scope at the dvi port i did see some signals , they did not look clean then i looked at the frequency and yes it was only the 50hz mains interference, have you found meany of these radios with a blown dvi chip, Thanks Dave 2E0DMB

[@TRXLab]

not many but very very few have a blown HDMI chip

[@davidbrowne1588]

Ok thanks Peter, I have ordered a ep592 so when it arrives I will change it Thanks Dave 2E0DMB

[@tomdonahoe3539]

Thanks for this valuable information. 73s 😊

[@leslieknowles5455]

What is the rating and spec of the fuse Pete ? thanks

[@rbc1225]

Awesome video. You mentioned people could end up using the wrong DVI to HDMI adapter and to be careful. Can you post or point us in the right direction to the known good converter so we do not make that mistake? Thanks

[@TRXLab]

don't buy cheap crap, just buy a quality A brand..

[@TheEmbeddedHobbyist]

Have you thought of getting a pair of de-soldering tweezers they make the problem of removing SMD R's, C's etc real easy and without the mess of flux.

[@mikesradiorepair]

If you watch the video you would see he used a pair of desoldering tweezers to remove it.

[@TheEmbeddedHobbyist]

@@mikesradiorepair to me it looked like two soldering irons. just went back and your correct. it was such an quick off i just saw the meter probes looked away and it was off. I sit corrected. 🙂

[@TRXLab]

@mikesradiorepair Good to see you mate! Hope you are doing well. Take care

[@stargazer7644]

Not sure what you think he used to remove the fuse.

[@TheEmbeddedHobbyist]

@@stargazer7644 hard to say under all that flux!

[@TheDefpom]

You can get DVI to VGA adaptors, might e worth picking up a couple

[@bblod4896]

At least two of everything 😂

[@TRXLab]

Yeah, I know that Scott, but the power consumption of some adapters are literally to height and that makes the issues..

[@iw0hex]

Thanks for sharing this interesting video Peter, as usually nice job. 73s de IW0HEX Pasquale.

[@TRXLab]

Thanks my friend! Take care 73

[@lorinhollander4057]

Hi Peter. Wonderful Video. What DVI-D to HDMI adapter, exactly, would be safe to use, are there any? I was informed by a very helpful Yaesu Support Technician that the CABLEDECONN Multi-Port HDMI To HDMI/DVI/VGA Adaptor was the best one to use (I was sent an Amazon link). I tried using that adapter with the Yaesu recommended DVI-D to DVI -D cable connected between the FTdx10 and the adapter and a good quality HDMI cable running from the adapter to a Dell U2415 HDMI monitor without any success, no signal apparently available at the monitor. Either the FTdx10 DVI-D Port, or the CableDeConn adapter itself appear to be nonfunctional, or - even worse - the trial of the adapter itself resulted with the FTdx10 dreaded blown fuse scenario, and I am not sure how to test out the port other than by connecting a DVI-D monitor. Any ideas for the best next step? I have notified the tech at Yaesu, but so far it is too soon for a reply. Thank you all. W6EO

[@stargazer7644]

DVI-D to HDMI adapters don't have any electronics in them and don't draw any power - the two standards are signal compatible. It just requires an adapter to route the wires between the connectors.

[@maxwalker4659]

Hi Peter, I have the same issue but I have 5v on pin 14. I have continuity tested the DVI-D cable and only have continuity on pins 1-2,7-10,14-18,22-23. I don't want to send my radio 1 thousand kilometers to be looked at if its not a blown fuse. Any advice would be appreciated. Love all your videos. Thanks for all your advice.

[@TRXLab]

Well, as we stated in the video if it is not the fuse it is very likely that it is the chip itself...

[@davidbrowne1588]

Hi did you fix your radio,Was it the dvi/hdmi chip thanks Dave

[@lenny0272]

OMG so cool. Thank you

[@ploegmma]

You say “be careful”, but how? I know about this problem. But how to avoid damage? How to check if a monitor or adapter is safe????

[@maxwalker4659]

Hi David, I am in Australia. What are you doing to fix the display fault. I would like to fix it myself if possible. Thanks for your info.

[@TRXLab]

I'm not David and I don't know what you mean with THE DISPLAY fault?

[@maxwalker4659]

@@TRXLab Sorry my mistake as usual. The (Display Port Issue) is what I mean by (Display Fault). I thought this was self explanatory. 73ss Good Luck.

[@PawelSamoHa]

Have you noticed you made a nasty solder flake with your probe on the diode pin (last test presented). I hope it will not fall off. Or short to the groundplane. Yaesu learned and FT-710 has a better solution - resettable polymer fuse.

[@Homer19521]

D1800 Ifsm for RB521SM-30 is only 1A. My understanding is Yaesu on the FT-710 has upped the Fuse to 1A for that port. I suspect they must have upped the rating for the diode too.

[@PacTel54321]

I agree; I looked at the data sheet for D1800, RBS521S-30; It is rated 200mA continuous and 1A surge peak. The FT-710, which has a similar circuit, uses an RB160M-30 diode which is rated 1A continuous and 30A surge peak. Interesting, huh? Also, the FT-710 has a Poly Switch (resettable fuse) that is rated at 350mA hold and 700mA trip at 60C. (500mA hold & 1A trip at 20C). One more note; The I2C lines that go to a little MCU chip on the FT-710 from the DVI connector now have a TVS (Transient Voltage Suppressor) network in-line. It seems Yaesu is trying to address the issues with the DVI port.

[@UnhingedHarry]

Great video, thanks.

[@IU8TWB]

This fuse is SMD (size 0402?) and has a value of 0.63A, can you tell where this component is purchased? Thank you

[@TRXLab]

directly from ICOM Europe

[@IU8TWB]

@@TRXLab It's funny that Icom sells a component that is for Yaesu rtx ;-)

[@ArthurCalhoun-e9o]

you must run a dvi-d monitor with that radio or you will have that problum

[@WHNorthcote]

If you are that good at replacing a tiny fuse like that then you could fix my original Yaesu FT-817. It has a problem that even Yaesu could not fix. In fact they did not even know if it was a problem as they checked their report logs and did not find anything resembling it. Another ham said it could be a few SMD resistors that have given out as the main screen characters fade even though the back light is on. They sent it back unfixed even though everything works except the display fades leaving a blue screen that it was already set to. Fancy a poke about to see if it can be fixed?

[@hankhardisty9433]

Thank you!

[@jasonwatkins3972]

i got a blury green screen on my external monitor even yaesu dont know what it is can anybody advise me please

[@ukrainehamradio]

It was very wise decision to use DVI instead HDMI

[@TRXLab]

Thanks for comment. Can you justify the view, maybe there is something I don't see?

[@ukrainehamradio]

@@TRXLab I am sorry! It was sarcasm. I have seen such damage before, including a burnt out chips. People are forced to use crappy DVI-HDMI adapters; DVI does not allow re-connection without turning off the transceiver and monitor. This causes damage. All this could have been avoided if HDMI had been used instead of DVI.

[@TRXLab]

never mind, fully agree.

[@stargazer7644]

@@ukrainehamradioDVI is hot pluggable according to the standard.

[@notfallmed]

tnx vy 73 👍

[@jasonwatkins3972]

yaesu said it be about £300 to repair my ftdx10

[@leoduursma547]

You where lucky, most of the time the EP-952 is detective.

[@TRXLab]

Why is it less lucky if the EP-952 were defective?

[@leoduursma547]

@@TRXLab It takes more time to fix.

[@mikemcdonald5147]

if they had the hdmi chip in the radio why the heck didn't they give us. an hdmi connector. so much easier

[@TRXLab]

It costs license fees...

[@LawpickingLocksmith]

Immer diese Sicherungen!

[@robertvarner9519]

This is why I don't buy Yaesu crap anymore. Everything on my FT-897d went bad soon after I bought it years ago.