Epson No Power - Repair Printer Mainboard Formatter Board Transistor MOSFET ET-2720

Рет қаралды 66,644

3 жыл бұрын

Why is the printer not turning on? [15-12] This problem is not always at the fault of the power supply. You may have a blown-out mainboard. You can fix the electronic problems in Epson inkjet easily, so don't give up and get working! Repair a mainboard, or called motherboard or formatter board, used to be a professional job. With this easy-to-follow video, you can repair the Epson mainboard yourself.
Epson Spare Parts: bchtechnologies.com/printer-p...
Suggested Tools:
If you want to replace the transistors anyway, you don't need to test them. Testing can tell you if you need to replace other parts, such as the driver chip or F1 fuse. 90% of the time, a replacement of the two transistors will fix the problem.
1. Tester: 12864 Mega328 ESR Transistor Resistor Diode Capacitor Mosfet Tester (find it on eBay)
2. Solder Iron
Previous video about scanner: • Fix Epson EcoTank Erro...
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About BCH: BCH Technologies is an innovative company focusing on ink and related products. Founded in 2011, the company transforms how people and businesses refill their printers through innovative technology solutions. Our core purpose guides the research direction of 1) preventing land waste and 2) bringing customers better products with lower costs. Every day, over one million ink cartridges are thrown into landfills worldwide. The company has focused on working with businesses of different sizes, from Fortune 500 companies to entrepreneurial starters, to develop custom ink, spanning from printer ink to stamp ink, re-entry ink, indelible ink, redaction ink, invisible ink, and more.
This video was produced by Kevin at BCHTechnologies.com.

Пікірлер: 102

@martelmatisse5609 2 жыл бұрын

I disagree with your assessment about ppl not liking these videos... I love it! Please keep making more.

@o.e.r.3287 3 жыл бұрын

As someone who repairs a lot of printers, your videos are becoming a quick favorite of mine.

@carloslicata8262 9 ай бұрын

hello. from Mar del Plata Argentina. very good explanation of how to carry out a good diagnosis, verification and repair. Repair technical videos are very welcome for those of us who are technicians. Greetings and thank you very much for your class.

@xwarp Жыл бұрын

So, I ended up having to replace the print head and those two transistors on this ET-2760 printer. Fixed it and prints absolutely fantastic. Thank you again for helping me revive this printer that I got from goodwill for 4 dollars!

@xwarp Жыл бұрын

YES!!!! Keep making these videos, while I may not need to reference your other videos, THIS video and the video regarding the removal of the scanner will certainly help me fix my ET-2760 with the same power on issue. THANK YOU! Will update when the printer is fixed.

@St3ph3n31 Жыл бұрын

Keep doing these videos you’ve helped me understand a lot thank you.

@TheAdiposito 3 жыл бұрын

Muchas gracias maestro Kevin BCH la mejor canción original 🤩, saludos desde Ecuador 👋

@buildonbudgetph4662 2 жыл бұрын

Awesome! Do you have a vid showing how to check, replace the 24 pin ic. Also the f1 fuse. Thanks!

@TheGraffitibaby Жыл бұрын

You are awesome and so informative. Glad for your educational videos. Keep up the good work. Thank you

@suryokencono2915 Жыл бұрын

cek harga alat testernya

@kdr-ql7pz 5 ай бұрын

Also you can check diodes, fets, transistors, etc with your multimeter. Kevin's has multiple options where his dial is placed. On others, look for the diode icon. Select it and use the pos and neg leads to check for forward biasing. The dmm supplies the voltage too.

@pjthebiz 8 ай бұрын

Hi Kevin, thanks for your efforts, very helpful to a novice Motherboard Guru like me 🙂 I have a question for you. Assuming the motherboard is removed, which chip would I replace in the case of an "Ink Pad Needs a Service message". I guess the Status is stored in one of the Motherboard chips. Many thanks and keep up the good work, Pete 🙂

@pereida12345 Жыл бұрын

Thank you for the detailed explanation

@BCHTechnologies Жыл бұрын

You are welcome!

@MrMitchjs 2 жыл бұрын

Kevin, i got ET-2760, and made the mistake of using cleaning flud and powering it back on, before all dry... the unit wont turn on, i pulled print head, 2 pins of the flex cable is burned. so my guess 1. need new print head (or just clean it and let it dry 100%) 2. need new flex cable (hard to find) 3. need to replace transistors on main board? since disconnecting the cable to the print heads, still no power up

@mikejok3r498 3 жыл бұрын

Very good video!!!

@alexander0194 Жыл бұрын

Thanks for the video. It was very difficult to remove the NPN and PNP components. I think I damaged the circuit board. But both appeared to test fine, which makes me think the problem may be in the power supply. How do you test the power supply? There are 4 wires I think.

@GurjVirdee 7 ай бұрын

Love your videos and explanations and repair. I have L5190 with burnt out DM301. It's SOT-523-3 and the marking is 5D. Could you tell me what the part actually is ? I can't find it anywhere online.

@laurenlabrousse1098 Жыл бұрын

Love your videos

@dermarius87 Жыл бұрын

Thanks so much, You've made my day 🎉🥰

@smmackey8515 2 жыл бұрын

Wow thanks. You are very good at instructional videos. Any chance you could do one on the the bios chip flasher? I noticed in this video you had one :). I’m in need of a tutorial on my ezpxpro.

@BCHTechnologies 2 жыл бұрын

Thanks. I don’t want to share it here in the public.

@kdr-ql7pz 5 ай бұрын

This may help. The Epson has a 4 pin connector (cnxx) which is used for debugging. Only development boards have these interfaces populated. My hp has a jtag interface, and two servicing uc removed. Generally these are not necessarily for bios flashing. But recovery. Every embedded controls architecture is different and the bootloader may even be locked. Personally, I would look at the datasheet for your nonvolatile ram chip. Read it. See what flashing protocols are supported and research. Check Git, someone probably has a project somewhat related and try an Adriano or Raspberry pi interface. Who knows, but becareful. Flashing your bootloader with the wrong files and you will definitely be debugging or replacing the uc.

@zelalemfeyissa8236 2 жыл бұрын

THANKS SO MUCH

@Via4esla 3 жыл бұрын

Привет. Твои видео очень хорошие. Продолжайте эту тему. Очень интересно. Привет из Литвы.

@BCHTechnologies 3 жыл бұрын

Большое спасибо!

@shirazigs 5 ай бұрын

Hi Kevin. Thanks for your amazing video. 😍I need help. I left a paper towel under the head and turned my printer on and did head cleaning, but it turned off by itself and never turned on again. Do you know where is the issue and how can I fix it? Thank you🙏🙏🙏

@ludwigdeleon1124 3 жыл бұрын

Hi do you have any video on how to check logic board and power supply for Epson L1300? Unit has no power at all

@nollywood6637 2 жыл бұрын

Hello Sir. Nice video

@leeannbeebe9851 Жыл бұрын

Great Video! Thank you Kevin. I was trying to clean the prints heads of an Ecotank 7250 and when I plugged it in to test it, it seemed fine but 1/2 way through the test print the printer completely powered off and wouldn't turn back on. I think I may have gotten it too wet and fried it. Is a situation like this, is it possible to fix by changing the transistors?

@allconstruction1 3 ай бұрын

same here i have a dead paper weight now 😢😢😢. What is the solution ?

@donibiele.f.5589 2 жыл бұрын

Working with et 2650 Thx

@mehmetozata5691 Жыл бұрын

hi, a222 and c6144 have been changed, the problem still persists

@SlayWithAnais 2 жыл бұрын

I have been waiting for this piece in this website for ever. They still haven’t restocked does anyone know where else I can get the mother board

@kevinvarela3027 3 жыл бұрын

Would love to see you working on an Epson F2000

@BCHTechnologies 3 жыл бұрын

Thanks. I don't have the time and space right now. The warehouse is overflowing.

@103rdBlackVulture 3 жыл бұрын

Greetings from Greece. Yesterday I, managed to fry my main board on an epson L365 after cleaning its print head. Some water got in, which I didn't notice, shorted the head and afterwards the mainboard :) lucky me ! I haven't yet got the board out cause I'm still pissed :). I'll check the TRs , but I believe that if the trs are shorted then I'm sure some tiny fuse will be off too. These two ICs you mentioned what type are there. Do they have to do with print head control ? Great videos btw 👍👍

@BCHTechnologies 3 жыл бұрын

The little fuse only controls the ink ejection. If your MB is fried, then the problem is more likely in those two transistors.

@rainbowclouds Жыл бұрын

Do you know where the fuses are in a CE59 main board (xp-432) and eventually how to test it ?

@marcinmarcin5093 3 жыл бұрын

Very useful.

@BCHTechnologies 3 жыл бұрын

Thanks!

@KoalaPlus777 8 ай бұрын

Can we use Epson printer hade and Mather bord in a big chassis to have a large wide print area? Please do this 🙏.

@purplereignworldwide2681 2 жыл бұрын

do you repair r2400 boards i have a couple i need repaired wondering if you could add fuse holders to f1 fuses that are blown on the boards i have

@simplybs9311 Жыл бұрын

Well Kevin I just received one of these in the shop, same issue no power or display. The ribbon cables were disconnected from the display and scanner when I got it so I thought easy fix just reconnect them and we back in the game. Nope, I guess this is a common issue with this particular model, gonna check it further before thinking its the board but from what you say and what im seeing so far i may have to get a replacement. Also are the power packs similar in most of the models?

@BCHTechnologies Жыл бұрын

LOL. I got a repair work (false paper jam) which the PF scale fell off as soon as I open the case. Easy fix - I thought! Then I found out the scanner lamp burned out, and the printhead is dead. I got a 3-in-1... so far.

@ivanreyes-ct8fq 3 жыл бұрын

Hi great video, can I ask you somethign. I got one epson l120 and the mainboard look the same. But here in México they say that if u get burn those 2 u will need to change the printhead to and the IC.

@BCHTechnologies 3 жыл бұрын

I will agree. If you burnt the transistors, you are likely needing a new printhead.

@joshuahurst1099 2 жыл бұрын

@@BCHTechnologies My transistors bun as soon as I turn on (just the power plug and display cable connected. Printhead is not connected, but it still burns the transistors, what else on the MB could be bad that causes it to burn the transistors? Thank you!!

@joshuahurst1099 2 жыл бұрын

If I take off the driver chip (E09A7418A) plug in power and display it powers up and stays powered up (appears to not burn out the transistors) so I will try now replacing the driver chip (E09A7418A) and seeing if that was the cause of the transistors getting burnt out - if not, then looks like its something else in the motherboard! :)

@marolmoguez3378 2 жыл бұрын

where can we buy that kind of tester for transistor ?

@XavierBrennetot 3 жыл бұрын

Very interesting, but is there any way to reset ink counter directly here ? (on some HP printer there is just a cr2032, you remove it and expiration date for Cartridge just fixed) ?

@BCHTechnologies 3 жыл бұрын

Well, you are walking into the dark side. However, EcoTank doesn't need a ink counter. It has one but it is for "suggested ink volume" only. The printer won't stop you from printing.

@deeznuttz7980 7 ай бұрын

What on the motherboard for an 8550 causes the printhead to print blank pages so I can fix

@fixitdude8121 3 жыл бұрын

Great video, very helpful. I have a similar problem with a Epson WF-3620. All of a sudden one day when I sent a print command to the printer from my laptop, I heard a faint click noise from the printer and a got an error message on laptop. Printer had shut down. Pushing power button on control panel and trying to reset by unplug, hold power button did not work. I tested the power adapter and can measure 42VDC at power adapter connection CN501 at motherboard. I tested the control panel power button with ohmmeter and it is functional. But there is no power getting from to either terminal of the power button. Do you think this is a problem with the motherboard? If yes, how do I isolate the problem? or any other suggestions? Note: the printer is about 8 years old and has seen only moderate use. Thank-you very much for any help

@BCHTechnologies 3 жыл бұрын

It sounds like it. There are only three things needed for a power-on: Power supply (working), MB, and LCD panel. The LCD panel is hardly the problem, so I will vote for MB.

@jcmoney11111 10 ай бұрын

Yes go deeper. More vids😊

@jkytown 10 ай бұрын

where do you purchase the power supply chip? MY husband removed the print head to clean a badly clogged black nozzle. After replacing it the printer came on then when dead a few minutes later.

@jetlacoste 11 ай бұрын

Wish i could find a video on how to get to the mother board on an epson 1400 and replace these transistors :(

@ellieannmarcano4578 Жыл бұрын

Hi can u plz give the list of the name of printers that is compatible with the et2750 motherboard

@nollywood6637 2 жыл бұрын

Hello i.have an epson L3169 and its writting scn ft mode. what does it mean sir.

@donibiele.f.5589 2 жыл бұрын

Work Thx

@JoeysGirl7410 2 жыл бұрын

Thank you😒 but this printer has been trash for me I tried to use it twice both times it jammed and now won't power up

@neddy1287 Жыл бұрын

What board fit Epson et2720 having issues finding it as it powers on then shortly after error 100016 as the scanner does seem to work with light coming through but with noises like motor trying to move even at the end of the guide. There's no dirt or grit in the guide. Is this a board issue or scanner issue

@AbedAlrhman 2 жыл бұрын

Hello my friend, I have a problem with the Epson printer, it does not come out colors when printing, they tell me that it is from the board, what is the solution?

@ChanvibolPen Жыл бұрын

Hello! Can you share some experience about Epson L1800? It is original. But technician told me " your printer got burn mainboard and pass power throgh to printer head". This happen while I start cleaned by using some acohol with water.Then I Put it in ordered and connect to power supply and started power on by put it alone. But the technician told me that " Your printer got burn by overload power" . Now I already repaired main board by my knowledge and the mainboard work well. But I want to ask you can I insert the old printer head into printer L1800 again? My Epson L1800 It is work less than a year of total using it. It just new

@steamy1225 2 жыл бұрын

Just watched your video for the 2nd time . great info. Now, i have a Epson XP-440 . Head was clogged . Cleaned out. reinstalled. and power came on, started charging the ink in the head and then power went off. Never came back on no matter what i did. watched you video again . Today i replaced the 2 transistors with new . reconnected MB back in printer . head is not in . Power switch lit up for one second and then no more power again. I don't know if something else besides the head is bad or not but it seems to affect the power issue. Any Ideas? Thanks.

@joshuahurst1099 2 жыл бұрын

Same here. If I leave them out, the board with just the display cable and power plug it turns on. If I put the transistors in, it powers on 1 second, then off and the transistors are burnt again. so something else on the MB is bad since it fries them with nothing else connected.

@Pakrat42 Жыл бұрын

I tested my transistors and replaced them, the printer worked for a total of 30 minutes and quit again. I tested the new transistors and they had died just like the originals. What could be causing these to blow out like that?

@handmadechiccrafts3463 8 ай бұрын

Hello, I have an epson L1800 and the power on the back does come on but the power button doesn’t so nothing works. Can you help?

@cocoioo 3 жыл бұрын

Hello 👋 , I have questions for you I have the same printer, when I refilled the ink and clean the nozzle it just shut down and never turn on. I tested the power supply black(GND) and other 3 (40v,42v,0v) . Is the power supply looks ok? Or not?

@tomaztercic9147 3 жыл бұрын

hello, I had same problem. first i changed mosfets, turned on, for short time but then off. I wonder if there is other problem to look after?

@BCHTechnologies 3 жыл бұрын

Did you get a new printhead? Maybe the printhead is dead.

@BCHTechnologies 3 жыл бұрын

PS looks okay. It is likely you have a faulty printhead.

@mariallknowing9273 Жыл бұрын

Definitely over my skill set. I can do up to removing all the parts, but the cutting and soldering are definitely past my skill level. 😪

@thelmawallace1253 Ай бұрын

hin my name is Thelma i have a ? im new to this dtf my et-8550 doesnt pull ink to the waste tank and dont want to print how can i fix this problem thank u n advance

@isaisa6558 17 күн бұрын

Sir, I am from Nigeria my Epson L850 is not directed on Computer I try all the possible but I am still facing the same problem.......please Sir I need your help. I can pay if necessary.

@user-hm8qq8ff1d Жыл бұрын

super

@davidrivera5020 7 ай бұрын

Can you tell me what the voltage of the power supply should be? Also there is 4 wires should 3 out of the four show a number?

@haydenjohnson3657 4 ай бұрын

42 v out is whqt i read on a forum

@niknasrul7186 2 жыл бұрын

wow. catchy song

@kuripotech461 2 жыл бұрын

Is it mandatory that if you replace the 2 transistors you should also replace the 24 pin micro controller? Thanks

@BCHTechnologies 2 жыл бұрын

@kuripotech461 2 жыл бұрын

@@BCHTechnologies sir then based on your experience how would you know if the 24 pin power IC is damage? Thank you sir.

@kdr-ql7pz 5 ай бұрын

Find your depopulaed debugging connector for a start. Reading datasets also helps if you can understand what they say. However, oem boards. Do not have chip manufacturer data printed on them. Generally found in a high volume production environment.

@delorisblue7606 3 жыл бұрын

Kevin I like your videos. I have an epson ET-2750 after cleaning clogged print heads, I get Scanner error 02. The cables are connected correctly, but the scanner error 02 100016 still comes on. What else can I do? Is there a sensor or something else that need cleaning? Thanks in advance

@BCHTechnologies 3 жыл бұрын

Does the lamp come on? When you start the printer, the lamp will be turned on and it will scan a little strip on the cover. The signal get sent to the printer. If the printer doesn't get this signal, it will think the scanner is broken.

@marypoppins7099 3 жыл бұрын

Can you assist with Epson P600

@BCHTechnologies 3 жыл бұрын

Sorry, I can't. Too much stuff to do and too little time.

@wilferossa5220 2 жыл бұрын

Friend . Do you have board. I need 1

@MarioMotoVlog 3 жыл бұрын

How reset HP304 for hp2620?

@BCHTechnologies 3 жыл бұрын

You don't need to reset it.

@melissabelton9180 3 жыл бұрын

I can not find this motherboard anywhere to purchase

@BCHTechnologies 3 жыл бұрын

We don't have all the mother boards. Most hot models are sold out within hours.

@raf-br2gm 2 жыл бұрын

My a2222 and c6144 are burned, after change printer starts for 2s and again burned, what kann by more?

@joshuahurst1099 2 жыл бұрын

same!

@raf-br2gm 2 жыл бұрын

@@joshuahurst1099 answer is burned e09a92ga or e09a7418a, must be changed both Transistor and Chip

@joshuahurst1099 2 жыл бұрын

@@raf-br2gm Thank you! I just removed the E09A7418A and power up and it did not burn transistors, so looks like that should be it - I'll keep you posted - thanks again!

@manuelpicazo8969 2 жыл бұрын

Are you in California

@BCHTechnologies 2 жыл бұрын

North Carolina

@laaroussirachid1755 2 жыл бұрын

Peace be upon you.. He has an Epson L1800. I cleaned his head and his head and the work has been turned off. I hope you can help me and where do I start from, thank you