XP-58 Thermal printer repair - I'm the only one getting these kind of repairs? 

The problem was in the output voltage capacitors of the charger, and when you injected voltage from your powersupply, the damaged capacitors were charged at the output voltage of the machine’s charger, so the charger returned to work, but if you left it for a while without power, the malfunction will return. Those damaged capacitors must be replaced. Thank you.

This is the perfect job for the customer who doesn't want to pay a lot. 😊

My first ever electrical repair was my mother's hair dryer, when I was about 10 years old. It did not heat up and the fan did not run. I opened the case (not having a clue what I was doing), gave it a severe looking at, blew out some dust and screwed it back together. Lo and behold, it worked and continued to work for another 20 years! That was the day I realised I had magic fingers! 🤣🤣🤣

Problem cleared while testing. Very common.

Hi Sorin, the simplest and safest way to to open those kind of boxes is to use gasoline on the joint part which will weaken the plastic and melt the glue. and after 30 sec you can open it by your bare hands and without tools. 🙂

check video at 0:55. you can see the red light. very odd. maybe the on/off button was dirty.

I had the same effect with a bluray player. At the customers house it was not working. I brought it home, took it apart and started measuring. The thing worked. I gave back. Two months later customer said it's not working. I took it home, took it apart and it worked. I resoldered most connections and for now it is working .... :)

The sigh 😕 and Sorins face was priceless 🤣. Loved this video

I have had so many jobs where I had to fix something fully functional lol I usually will hold it for a day or so if I can to thoroughly test it and make sure that there's nothing wrong with it.

I would definitely have done a few test prints to ensure the PSU was outputting sufficient power to drive the thermal head, but agree the switch seemed to have been the primary issue. Whilst the device was open its worth taking out the printer board to inspect the switch and for dust/dirt underneath.

I think i saw a few bad solder joints... 8:30 at least the middle pin of the transistor, if not all three 8:32 the big one looks cracked to me 8:46 the soldering straight below the 'R22' marking looks bad, the one left to the marking also... In this case i would resolder the through hole components to be on the safe side.

Condensatorii sunt dusi! Am intanit de multe ori. I-am scos i-am masurat si aveau chiar si pe capacimetru valoarea corecta 😂😂 dupa ceva timp iar s-a repatat defectul. Dupa ce am schimbat condensatorii totul s-a rezolvat! 😁 numai bine si mult succes cu canalul in continuare 😁 salutari din Romania

Because the heatsink has a bent fin, maybe when you cracked open the case it fixed a solder joint, ie, maybe the mosfet joints.

I liked that close up view you gave of the circuitry very Cristal clear

Your customer is a kind man.

I work at a rather small company and we have a couple of these laying around in the storage. The repair is definitely more expensive than getting one from classifieds.

Yes. Yes you ARE the only one that gets these jobs. I repaired a woman's large electric toy during covid - she said "Amazon is out of stock".

You are a miracle worker, as just looking and a little fiddling and presto it works.

This is not a dial-up port :) It is used to communicate with external displays and automatic drawers (for cash payments).

👏🏽👏🏽👏🏽👏🏽👏🏽👏🏽 Something new to explore ! Who knew thermal pads could have so many uses! :)

A few years back at work, we had a ceiling mounted data projector in the main school hall that was dead. We had to get our scaffold tower to get to it. My boss was about to spend £2,000+ to replace it as it's a very high lumens model that projects on to a very large screen on the stage. I said before you send off the order for a replacement let me take a look... well I opened it up, took it all apart and had a good look around and could see nothing wrong so I put it all back together, plugged it in and low and behold! It was working again and I had done nothing other than take it apart and put it back together again! It went back up the scaffolding tower, connected back up to the ceiling bracket and it has been fine ever since!!

You're not the only one ;). I have calls from garages, even private customers which are all electronics repairs as we're the only electronics repair shop in our area. So, we have even now 4moms Mamaroo ;) in repair.

Sorin repairmen's magic regards Jim

The magic sorin touch 🤣👍

Yes ive had this kind of repairs. Professional vacuum cleaners and coffee machines that just had a loose contact.

Magic from sorin.

I have the same repair when i fixed the lamp from bike its working now perfect :D

To open the stuck power supplies I force them a little with some slotted adjustable slip joint pliers.

The green POWER light and red STATUS light both came on at the very last second before you started to open it at 0:56. Switching it on and off several times seems to have done something.

5:20 a better way to open the box is to apply some gasoline and after about 2 minutes it will open very easy by hand

Sorin the magician !! 👋

I got some weird stuff for repair. Usually the customers don't want to pay the big buck for specialized service repair. They come to us hoping to pay 10 cents. They should always have a backup in case the main printer fails but they are too cheap to have one a s a backup. Looks like all over the world customers are the same.

I would replace output capacitors, after checking the solders.

I put little IPA alcohol on the middle where the bonding is. Wait 2-3min. After that i cut / hit the 4 corners with paper knife. Usually the adapter gets open nice and i can glue it back lice factory.

You're Magician Sir. Like it.😂

@Sorin, i think you helped bad outputs caps with your bench psu, this time the loop is done (feedback started). Best Regards 🎉

Come to Besiktas,Sorin...and sometimes you need open things to repair sometimes you need to just open things..mystri of life... Hard job...😃

Every PSU open with zippo gas for lighters - pour just a little drop on conection joint. It open easy as a can in 2 minutes.

It happened to me twice. First with a LCD monitor and then with a credit card handheld terminal. I never knew what was wrong in the first place...

hellloo i learn many things from You just start this channel :D You are a... real person not like many "celebrites" :D Appreciate this !

Condensatorii pe iesirea de 12v sunt uscați, aveai 11,2v cu fluctuații de tensiune...eu zic să îi schimbi. Alimentarea cu 12v de la sursă a reactivat c _ urile pentru o perioadă de timp și se va reîntoarce la reparație. O zi bună!

good repair :D

Magic!

"What would you do in this case?" Send them the bill! 🙂

FREEZE SPRAY! These sorts of repairs drive me nuts!

it happened so much times to me with laptops dead not working at all and all tre sudden it start working better than before :D LOL or car radio same I had one taken all screws out I was like ok lets take wires out lets try to see whats happening and all good job done! :D LOL just pure MAGIC!

Excelente 👌

I think you missed something this time. Sure, the caps are the usual suspects but: The 5th time you flip the switch ( video time 0:54 ) you can see the green led turning on, and the red light light start flashing. Then, you flip the switch one more time (6th time) and the same thing happens again: the green light turns on, and the red light light starts flashing. You just fail to notice because your bench lights are very bright. I believe that you have a dirty switch. It needs some good old loving contact spray. My second guess it that you have a dry solder under the switch. Of course you could check the caps with an ECR meter but in this case i believe that there is no need to replace them. As always, I enjoy your videos! PS as @dreaso suggested, since you already cracked opened the PSU case, you could resolder the through hole components. Its a one-minute job.

The boxes, like this, I opens using the hummer. Position of the box should be the same as on video, when you using the screwdriver. better to do it on the flore or heavy stable surface.

I fix stuff like this all the time. Customer says Xyz is not working. I show up and ask the customer show me what isn't working and like magic its fixed. its the positive energy we give off. or the device knows I'm not afraid to bring the Hammer out.

the "dial up port" is actually a cash drawer kick port. ive been repairing cash registers/epos since 1979 to test it, put an 57mm roll in it, then press and hold the feed button while you turn the main power on (it will perform a self test) dry joints on the rocker switch are common - as are the output capacitors on the power supply - (these cause the printing to be feint) trust me - it will be back (my money is on the output capacitors on the psu) you also didnt test the print

😊😊😊Bet you it's the on-off rocker switch.

Sorin, take a look at the your recording the light looked like it came on when you was hit the power switch back and forth.

Probably something happened while connecting the external 12Volt????? I remember you having this before. Next time unplug first the powersupply.

7:45 punch fix

It may about broken copper wire inside the cord. if a device not working i always check the power cable first, then adaptor output value without any cable moving. You can catch the broken wire while problem live. But if you move the cables, copper wires may start to connection and you cant catch it beacuse of plastic coats.

8:30 I can see two broken solder joint near ZD1 and ZD1 look partialy burnt.

I would resolder some critical points in the power supply and would clean the paper channel.

the best way to open glued power supplies is to use a big knife, place it across the middle glued section and hit it with a wood hammer, like the one for meat. it will perfectly crack open. ( cea mai buna cale testata de a deschide surse lipite este plasand un cutit de preferat mai mare ca cel numit cutitul bucatarului exact in santul de lipitura, ca si cum am vrea sa taiem sursa in 2, si lovita muchia boanta a cutitului cu un ciocan de cauciu sau de lemn de genul de tocat carnea )

So 'the force' really is with you ... 😂

Weird intermittent fault maybe? I'd replace the startup cap typically 47 or 33uf 25v and just give it him back. Customer is the best tester. (and the worst)

LOL, the fault is may be power condenser or drying of power board. You hammered it for connecting, but will be disconnecting in further using

Open the power casing easier using acetone

i just need to take it in my hands and it will work again.

Of course, to begin with I do NOT like receiving "unknown" devices... if a customer arrives with something of this type I go and see it (courtesy), I tell him to call or go to the authorized service center of that brand. ...generally, the client gets upset (angry) when I tell him this; Then I promise to review it, let you know that there are no schematic diagrams and that I have no spare parts for your unusual device. Finally I ask for 10 days for the review WITHOUT obligation but with the understanding that you will pay minimally for the diagnosis. Alone I reflect and tell myself that it is an "opportunity" to learn something new and how curiosity always kills me! I'll have to stay a little longer at the end of the day. Greetings.

I'm Epson repair Center. Pressing the feed button may print a test.

Apreciez foarte mult ceea ce faci .Am acelasi " job" ca si tine dar aici in Romania , metoda mai buna de a desface sursele astea chinezesti nu este , de multe ori le-am socat asa tare ca s-a spart sau fisurat ferita din transformator.Am impresia ca meseria asta de depanator electronice este pe cale de disparitie ....sau nu?!

i often have that kind of woks...

nice

Fantastic 😂😂😂❤

Do the lotto Sorin😂

Very very simple problem i m shocked sir you don't see the problem!

The power supply was scared of you so it just heal herself😂😂. I rather work or Sorin will fix me...😂😂

Ask the owner how he tested it before he brought it for repair? My guess is he tried different outlets but never checked the cable going into the printer. I am guilty of always doing the brue force repair only to find out that I forgot to check the fuse first or even switch on the thing. Or worse, to even test the outlet for power.

My guess is the PCB connector got loose 😊

check your video. when you first plugged in, the red light flashed. you missed it. It was the switch.

8:18 broken solder

Magic touch did it again...🤣🤣🤣

❤

Welcome to my world Sorin. I would replace the capacitors and unit would still come back from customer. There are ghosts in my workshop. Evil ghosts.

Why you did not apply the hot glue when finished with the power supply box? ((

It is a weakness and consumption of the output capacitor. But this capacitor was afraid that you would take it out in a brutal way, as you do to others like it, so it returned to work again, lol.😂

THE MAGIC C:

at t he beginning when you was flipping the power swtich the light came on as you stopped doing it

You'll break it like that :) Why don't you use an esr meter?

Propably same as i have one Samsung screen which breaks only if i keep it plugged in power over night but not turned on.

50% of my jobs are like this actually

That PoS is afraid to your operation.. 😀

i have small question what camera is from top ? on this movie ?

Heppend alot with me when its start working again suprisely

In my experience gasoline is the best way to open laptop adapter without damaging the plastic case but you have to wait around 10 min.

guess the power supply did not deliver enough to charge the capacitors first. just low on power for some reason

8:30 ZD1 is blown

MAGIC fingers

maybe the 12v connector was loose lol

Problem will come back. Replace the output caps!

11V output?? Should it be 12V and thus weak sec output Caps maybe and barely got it going and sometimes on and sometimes wont start the printer maybe?

im finding ribbon or ink . but im failed

I have had 2 computers that did not turn on . I pulled all the connectors and reconnected and fixed ????????

After flashing bios (chip out reprogram) on HP 8750p pictue appear once and that's it...fan going full blast but no picture tried 3 bioses still same...any idea ???