TomTechTod
TomTechTod
  • Видео 63
  • Просмотров 2 403 839
Powerflex 70 not starting or difficulty starting
Common problem with the onboard power supply. Decoupling caps are bad. Replace only the one for the switched mode power supply controller IC (ok) or all of them (better). All are SMD caps. Chose hybrid over common electrolytics.
Просмотров: 2 130

Видео

EVduty charging station repair Easy and Cheap
Просмотров 1 тыс.4 года назад
This charger is completely dead. The problem is a faulty ACDC converter supplying power to the control board. Price for the component including shipping about $35, much cheaper than a new unit.
Disable PS4 startup beep
Просмотров 171 тыс.4 года назад
Annoyed by the useless startup beep of your PS4 ? In this video I'll show you how to completely disable the buzzer. The beep has also a basic diagnostic function so you loose that too because the buzzer is physically removed. Never missed it though. Tools: Torx screwdriver (Phillips screwdriver) Soldering iron This is a PS4 slim. The buzzer might be in the different position for other models.
No picture Hisense 55K20DG LED backlight repair svh550aa2 HD550DF
Просмотров 4,2 тыс.4 года назад
Tv has no picture but sound ok. Here shown is the backlight replacement with optional very cheap single LED repair. LED strips used are 11x HD550DF-B57/S0 (svh550aa2_rev05_7led_130719). LEDs are 3528 types with large anode pad. Finally the LED current will be lowered on the driver PCB to prevent this from happening again. Also used in 55K23DG and NS-55D550NA15
High density Coil gun Multi-stage
Просмотров 92 тыс.4 года назад
This is a modular multistage low voltage reluctance coil gun. Each module has 14 stages comprised of asymmetrical Mosfet full-bridges. For the two modules shown in this video the total energy transfer efficiency from capacitors to projectile is 6.2 to 7.5%; about 2% for the injection coil, about 12% for two modules (28 stages). Velocity varies depending on projectile mass. For two modules it's ...
40SL412U no picture Backlight repair HAI7201TC
Просмотров 2,5 тыс.4 года назад
TV has sound but no picture. The video shows how to determine if LEDs or LED driver are faulty, the process of replacing individual LEDs and how to lower the LED current supplied by the driver IC HAI7201TC. LED strips are V400H2-LE2-TREM2 and V400H2-LE2-TLEM2. LEDs are 3V types in a 3014 package. The original LED current on the HAI7201TC was adjusted to 120mA per two channels (60mA each). We lo...
42LY540S No picture backlight repair and LED current modification
Просмотров 1,1 тыс.4 года назад
TV has no backlight but picture is still visible with a flashlight shining on the screen. Best results are obtained when replacing whole LED strips but shown here is the process of replacing single LEDs. Finally the maximum LED current the PSU can supply will be cut in half to avoid this happening again.
BN44-00787A repair and LED current modification UN58H5202
Просмотров 9 тыс.5 лет назад
This TV doesn't turn on. One SMD transistor model# IPD50R380 on the PSU board BN44-00787A is shorted. After replacing the transistor the maximum LED current the board can supply will be lowered from 410mA to 310mA to decrease the risk of damage to the LEDs. The transistor and resistor can be obtained here: www.digikey.com/product-detail/en/infineon-technologies/IPD50R380CEAUMA1/IPD50R380CEAUMA1...
Sony KDL-40R470B 6 red blinks repair
Просмотров 86 тыс.6 лет назад
This TV starts 3 times then turns off definitely with the front LED blinking 6 times. In this case some LEDs of the backlight are defective. You can replace whole LED strips or single LEDs. Single LEDs can be bought from eBay, you need 3V types, 3228, anode being the smaller pad. Also useful are a hotplate and solder paste. Solder paste can also be obtained on eBay.
LC-52LE640U 2 long 5 short blinks repair
Просмотров 19 тыс.6 лет назад
One possible cause for the 2 long 5 short flashing code on Aquos 52LE640 TVs, maybe other models too that use the same voltage regulator and a similar power supply. Part to be replaced is: KIA378R12PI (12V voltage regulator). Other possible causes for the 12V to be too low could be too much current drawn from the 12V output of the PSU due to overload/short somewhere else like the T-Con etc I pr...
Ultrastable 1.5V microsized UHF transmitter
Просмотров 18 тыс.6 лет назад
My last transmitter I will post here for now, mainly because I don't really have use for them. But it's a fun way to learn and experiment with high frequency low-power transmitters. This one here uses a MEMS microphone to modulate a high frequency SAW stabilized oscillator. It uses one 1.5V SR416SW battery with a diameter of 4.8mm. To solder the components you will need to use solder paste and ...
Coilgun SGP-33 assembly and test
Просмотров 39 тыс.6 лет назад
$2 PCBs & Big Discount on First order : jlcpcb.com This is a video description of the coilgun you find on instructables.com: www.instructables.com/id/Single-Stage-Gauss-Pistol-SGP-33/ Gerber files can be downloaded here: drive.google.com/drive/folders/1qW3X0660T1McL0rmWsktKYwpjhrWA6VD?usp=sharing Shortcuts: Introduction: ruclips.net/video/kYOmbKorgSQ/видео.html Bare PCBs: ruclips.net/video/kYOm...
SUB-TS15 making strange noises - easy repair
Просмотров 80 тыс.6 лет назад
Usually I hate myself for accepting to repair audio equipment. This was no exception but the repair was easy nevertheless. The glue used to hold components and PCBs in place becomes conductive over time, from a few hundreds of kiloOhms to MegaOhms. This causes the preamplifier circuit to behave you will see in this video, completely random noises. Remove all the dark brown glue and use some hot...
RLDED5078A-F backlight repair and current adjustment
Просмотров 12 тыс.6 лет назад
This nearly unedited (i.e. long) video shows the process of repairing the backlight of a 50 inch RCA TV. It's simple but takes some time. After the backlight repair the LED current should be lowered, this is done by simply cutting a resistor.
Water damage repair Samsung 46 inch
Просмотров 67 тыс.6 лет назад
When an LCD TV front glass is cleaned with water it can infiltrate between front bezel glass and run onto the PCB connected to the LCD panel. If it stays there traces and component terminals corrode causing picture failures or open connections or even shorted/low impedance ceramic caps. More often than not the COFs are not defective and replacing the ceramic capacitors with a few hundred nF to ...
Changhong LED50YC2000UA TV LED backlight repair
Просмотров 9 тыс.7 лет назад
Changhong LED50YC2000UA TV LED backlight repair
Pro Chrono homemade indoor lighting
Просмотров 15 тыс.7 лет назад
Pro Chrono homemade indoor lighting
Low-tech Tiny UHF tracker transmitter
Просмотров 17 тыс.7 лет назад
Low-tech Tiny UHF tracker transmitter
PN42B430 picture failure y-buffer problem
Просмотров 8057 лет назад
PN42B430 picture failure y-buffer problem
UN32D4003 LED strip repair and LED current adjustment
Просмотров 16 тыс.7 лет назад
UN32D4003 LED strip repair and LED current adjustment
RCA RLDED4016 no sound repair PROSCAN SEIKI ELEMENT
Просмотров 11 тыс.7 лет назад
RCA RLDED4016 no sound repair PROSCAN SEIKI ELEMENT
UN46ES7100 turns on and off by itself / Wifi not working
Просмотров 3,9 тыс.7 лет назад
UN46ES7100 turns on and off by itself / Wifi not working
Let's build a simple FM transmitter
Просмотров 4,5 тыс.7 лет назад
Let's build a simple FM transmitter
F66459X91AP H97 error inverter schematic Panasonic
Просмотров 66 тыс.7 лет назад
F66459X91AP H97 error inverter schematic Panasonic
RLDED3258A-C backlight repair and LED current adjustment
Просмотров 7 тыс.7 лет назад
RLDED3258A-C backlight repair and LED current adjustment
55LB6000 backlight repair - LED replacement LG 32LB, 37LN, 39LN, 42LB, 47LB, 50LN, 55LB series
Просмотров 23 тыс.7 лет назад
55LB6000 backlight repair - LED replacement LG 32LB, 37LN, 39LN, 42LB, 47LB, 50LN, 55LB series
UN40F6300 backlight repair and LED current adjustment UN40F5500
Просмотров 46 тыс.7 лет назад
UN40F6300 backlight repair and LED current adjustment UN40F5500
Common cause for subwoofer buzzing - repair guide
Просмотров 315 тыс.7 лет назад
Common cause for subwoofer buzzing - repair guide
🏊 Hayward Swimpure RJ salt chlorine generator NO CELL POWER repair
Просмотров 3,1 тыс.7 лет назад
🏊 Hayward Swimpure RJ salt chlorine generator NO CELL POWER repair
How to repair your tCON board AS15F AS19F AS34
Просмотров 49 тыс.7 лет назад
How to repair your tCON board AS15F AS19F AS34

Комментарии

  • @chicomaroto
    @chicomaroto 6 дней назад

    I'm here because my old ps4 stopped doing the beep by itself 😢

  • @Albarios
    @Albarios 15 дней назад

    Thank you for your video. It really helped me out. Those darkened resistors won't need to be replaced? I found that whole area very darkened, too much heat and lack of heat sinks, I guess. Both issues would be planned obsolescence from Harman Kardon?

  • @ashleypaine7846
    @ashleypaine7846 26 дней назад

    Somepeople need help!

  • @joelarmania5322
    @joelarmania5322 Месяц назад

    Bonjour merci pour la vidéo. Je me demandais si on peut changer la ligne des leds au complet au lieu dans changer seulement une ou 2? Car après avoir vue la vidéo je trouve que ça prend beaucoup d'outils pour réparer seulement que 2 leds?? Merci encore pour la vidéo je suis seulement un novice et j'apprend beaucoup grâce à de belles vidéos comme la vôtre. Merci

    • @tomtechtod9200
      @tomtechtod9200 Месяц назад

      Oui, absoluement, c'est meme la methode preferee. Remplacer toutes les DEL. Je ne sais pour cette tele, mais en general ca coute environ 60 a 100 CAD. Shopjimmy ou eBay.

    • @joelarmania5322
      @joelarmania5322 Месяц назад

      @@tomtechtod9200 Thank you

  • @renatoiori
    @renatoiori Месяц назад

    Ayuda el diodo 352 como se llama veo q dice EYs9 pero no encuentro me ayudan please

  • @supremelurker727
    @supremelurker727 Месяц назад

    Which strips are LED 2…LED 1 and LED 3? It’s not labeled on the metal piece.

  • @jamesmrjeckylloneal
    @jamesmrjeckylloneal 2 месяца назад

    THANKS

  • @CarlosVazquez-vb5pm
    @CarlosVazquez-vb5pm 2 месяца назад

    El mio solo lo dejo de hacer jaja 😅

  • @Balling_y
    @Balling_y 2 месяца назад

    Pov you are watching this so ur parents dont wake up but then u see this and u say "i ain't doing all that"

  • @MarkusHiltl-s1y
    @MarkusHiltl-s1y 3 месяца назад

    Bitte Bauplan

  • @brambedkar8188
    @brambedkar8188 3 месяца назад

    I want a hindi vedio suply not coming and check multimeter show me

  • @pq9440
    @pq9440 3 месяца назад

    I have an old 3b amplifier, the 4 transistors are all shorted, may I ask could you give me some guide to trace the issue? Thanks.

  • @matthewhopkins7042
    @matthewhopkins7042 4 месяца назад

    Indian guy. German news broadcast. Of course.

  • @IamChristian777
    @IamChristian777 4 месяца назад

    great diagnostic!

  • @christianmordstein6147
    @christianmordstein6147 4 месяца назад

    EAY609689901 - clicking relais >> Fuse F501(4A), R929 10Ohm/5W, VCC(15V) on pin12 were not there. L6599A( is ok) but following parts on pin12 were dead-> ZD504(15V), R506(2.2R), ZD804(15V), R806(2.2R)

  • @Thisone-ct5nk
    @Thisone-ct5nk 4 месяца назад

    it's fine i'll just cough at 2am

  • @YEMinThant-gv1my
    @YEMinThant-gv1my 5 месяцев назад

    ❤❤❤❤❤

  • @YEMinThant-gv1my
    @YEMinThant-gv1my 5 месяцев назад

    ❤❤❤❤❤

  • @YEMinThant-gv1my
    @YEMinThant-gv1my 5 месяцев назад

    ❤❤❤❤❤

  • @Poppinwheeeeellllllieeeeez
    @Poppinwheeeeellllllieeeeez 5 месяцев назад

    MY Samsung Plasma PN60F5500AF exhibited the same issue. I replaced the blue 106 capacitor with a 10uf 50V electrolytic. There is only a single blue 106 cap near the chip on this model. I established which side was ground via continuity to the ground screw using a Muti Meter and soldered in the cap and voila it sprung to life. Thanks for the information. Hope my comment helps others with the F designated model.

  • @antoninhlavacek2812
    @antoninhlavacek2812 5 месяцев назад

    I have same problem, but thanks to you, i fixit. Thanks 👍🙂

  • @adityakelkar9294
    @adityakelkar9294 5 месяцев назад

    I was unfortunate to come across this video a bit late, by then I had attempted to change the capacitors and the transistors on the pcb. But after seeing this video I first checked if the glue on the board had become conductive, only to find it very conducive. So I removed the glue using isopropyl alcohol. I was clueless about this before I saw the video, and now my subwoofer is glueless after I saw your video. Thanks a ton for posting this. Saved my subwoofer from going to the dump.

  • @chandramohan-zi5bh
    @chandramohan-zi5bh 6 месяцев назад

    Q403,Q402 Part Number Please

  • @L0st24
    @L0st24 6 месяцев назад

    Ive been having issues with my Samsung ue46es6100 that would simply Never connected tô the wifi but worked fine some days ago it started blinking 5 times the Red light tried everything measured everything and came across your vídeo guess what... Disconected the wifi module TV turned on and works fine..

  • @Shahidkhan-rm3uk
    @Shahidkhan-rm3uk 6 месяцев назад

    Hiii sir. Pls reply me my Bose ps 28 series 3 power on but green and orange light blinking non stop how to solve sir pls help 😊

  • @jetskyamorsolo5328
    @jetskyamorsolo5328 6 месяцев назад

    Use alcohol when removing the hot glue it's much easier instead using hot air

  • @amaziahcroom7421
    @amaziahcroom7421 6 месяцев назад

    Well I guess my ps4 is just going to keep beeping . This is too much for me

  • @blechhammerer4008
    @blechhammerer4008 7 месяцев назад

    Lieber Tom, ich habe deine verschiedenen Sender erst jetzt gefunden und nutze deine grossartigen UKW und UHF Vorlagen, um den heimischen SMD-Prozess auf Vordermann zu kriegen, insbesonders die 01005 Bauteile sind eine herrliche Herausforderung. Ich selbst beschäftige mich seit den 1970ern mit Kleinsenderbau, seit 1990 auch in SMD. Für einen Modellraketenverein entwickelte ich in den 1990ern einen Gegentakt-Ortungssender im UKW Band, der bei etwa 500mW lag und auch an die ueblichen Fernsteuerungen mit Data & Versorgungsspannung angeschlossen werden konnte - dieser schaltete sich selbstständig ein, wenn die Fernsteuerungsignale ausblieben. Gewicht ca. 7 Gramm. Im Moment bearbeite ich dein Layout des kleinsten Bugs (6.8x4.75mm) etwas nach, um verschiedene Keystone Knopfzellenhalter einzupassen, er wird dadurch etwas grösser, 5x8mm. Ich habe noch viele ZnAir Hörgeräte Knopfzellen übrig (312), diese verfügen über wesentlich höhere Kapazitäten bei etwas geringerer Spannung (1.4V), was wiederum die "Schutzdiode" überflüssig macht 🙂. Diese passen dann auch auf die 5x8mm Leiterplatte, allerdings mit Drahtbügel. Was mir noch auffiel: Du sprichst fließend und akzentfrei deutsch, englisch und französisch? Bist du ein gebürtiger Deutscher (oder die Eltern sind es?) und wohnst im Osten von Kanada? Cool, wenn man 3 Sprachen beherrscht - mein Schulfranzösisch ist eingerostet nach den vielen Jahren, kommt aber wieder wenn in Urlaub in F. Vielen herzlichen Dank für deine Beiträge - mich haben sie motiviert, meine Grenzen neu auszuloten. Thomas Grande, 62, Berlin, Germany

  • @Metalhead-4life
    @Metalhead-4life 7 месяцев назад

    Thats not a buzz thats a fart

  • @maicol3777
    @maicol3777 7 месяцев назад

    I was looking for a video to reactivate the sound because my PS4 doesn't do it anymore and I don't know why😂

  • @6969Axol-
    @6969Axol- 7 месяцев назад

    Ps5 has a feature to turn off the beep sound but ps4 doesn't?!

  • @hansuirab
    @hansuirab 8 месяцев назад

    I have sony home theater 5.2 subwoofers make that humming sound. I tried unplugging and plugged different electric sockets, but still doing that might be capacities repaired just need help thanks

  • @mr.selfdestruct2917
    @mr.selfdestruct2917 8 месяцев назад

    How dare you! Hk installed that glue, so you have to buy another sub! You're defeating the whole purpose! Well, I hope you enjoy your sub for many years to come.

  • @hangngoaigiare
    @hangngoaigiare 8 месяцев назад

    Seriously no chip info? First that i know off. Repair probably cost more than buy new. New Parts are expensive unless can find free old parts

  • @zenithpinch
    @zenithpinch 8 месяцев назад

    turning the backlight down fixed it for me. wow merçi beaucoup

  • @tomweickmann6414
    @tomweickmann6414 8 месяцев назад

    Bought a kit like this. SMT parts. I ruined it.

  • @doubleooh7337
    @doubleooh7337 8 месяцев назад

    The only difference I'd make Is wind EVERY LAYER the same direction, so the magnetic fields of each layer would be n/s, n/s, n/s, n/s, n/s You've wound it back and forth, so you're magnetic field of each layer will be n/s, s/n, n/s, s/n, n/s Do you see how they'll give totally different results? It PUSHES the magnetic field outwards through repulsion, Winding back and forth PULLS the magnetic field inwards through attraction within the coil layers itself Hopefully you might try a side by side, for others to see as that's one comparison not done yet ;) definitely 2-3x stronger

    • @tomtechtod9200
      @tomtechtod9200 8 месяцев назад

      Unfortunately not much gain can be obtained that way. The main limitation of these coilguns is saturation of the projectile. Once it's saturated the force on the projectile decreases substantially, with the same magnetic field strength. That's why all ferromagnetic projectile designs are still clunky. The best designs use a higher mass projectile and therefore have higher kinetic energy, still at very low velocities compared to firearms.

    • @doubleooh7337
      @doubleooh7337 8 месяцев назад

      @@tomtechtod9200 actually it can the coil you wind you think youre getting the magnetic field this other way actually gets

    • @doubleooh7337
      @doubleooh7337 8 месяцев назад

      @@tomtechtod9200 the video i just posted proves its over 2x as strong mas for mass.

    • @doubleooh7337
      @doubleooh7337 8 месяцев назад

      @@tomtechtod9200 the stronger field can handle a much bigger/denser material with ease, on my motor i can easily push n52 magnets super faster, the normal weaker coil needs much weaker magnets to push same principle with iron much strong pull

  • @luccaszach
    @luccaszach 8 месяцев назад

    Like why does there even need to be a beeping sound? Isn't the light good enough? On any console.

  • @WingetGaming
    @WingetGaming 9 месяцев назад

    Beep: 😨😨😨 Fan:😂😂

  • @mc7272
    @mc7272 10 месяцев назад

    Unfortunately I have a patent on this product, guess I’ll have to forward to patent attorney again

    • @blechhammerer4008
      @blechhammerer4008 6 месяцев назад

      @mc7272: Go and f*** yourself, Troll. That is a demonstrator, not to be sold. Or was it a joke?

    • @blechhammerer4008
      @blechhammerer4008 6 месяцев назад

      Its a demonstrator to share knowledge. Go f*** yourself.

    • @charliebrownn6622
      @charliebrownn6622 5 месяцев назад

      Y ya lo tienes en producción ? Ya se puede comprar ? Por qué si no tan solo eres otro troll de patentes , El cáncer de la innovación y el verdadero progreso

    • @tomtechtod9200
      @tomtechtod9200 Месяц назад

      Ja klar war das ein Scherz :-) Hier kann man sowieso nix Ernst nehmen

  • @borispahovic7114
    @borispahovic7114 11 месяцев назад

    how can i contact you

  • @ronnybarela
    @ronnybarela 11 месяцев назад

    I really need to know the size of the capacitors in parallel with the speaker out pins. Just in front of the two big ones he changed.

  • @smithaj85041
    @smithaj85041 11 месяцев назад

    Ok for anyone that watches this video he is somewhat right, except you do not have to unsolder the speaker, just take the cap off with a pair of pliers and remove the silver flat piece inside and put the cap back on, very simple and easy to much work with the whole solder deal lol

    • @HiddenLeaf979
      @HiddenLeaf979 2 месяца назад

      Thanks for this great easy to do info , it was only a gold tab that falls out of the black top . No soldering needed

  • @Pocket_movies_studio
    @Pocket_movies_studio Год назад

    Post a video how to take the buzer whitout the thing to melt it plssss😢😢😢

  • @DjTatty
    @DjTatty Год назад

    SAVE YOURSELF SOME TIME MATE , its the resistor, color band....orange | Blue | Silver | Gold | Black, 0.36 Ohms. common fault.

  • @PunkieDudie
    @PunkieDudie Год назад

    Is this a similar step to the original launch PS4?

  • @maxtek73
    @maxtek73 Год назад

    I bought one of these bass cube, i plugged it in and all i got was loud hum and buzzing, so i knew what was wrong, the power capacitors were bad. they usually swell on the top. you don't need measuring of the caps, you can do it by eye.

  • @agutierrez20
    @agutierrez20 Год назад

    Was about to buy a new sub, then I saw this video. Old one is working good as new now. Thanks!

  • @muhammadsyed7981
    @muhammadsyed7981 Год назад

    Hi, you have presented an excellent video showing voltages to verify, I dont get backlight at all does that mean Power Board BN44-00667Ais bad? I would really appreciate if you could guide.

  • @DAIEL1234
    @DAIEL1234 Год назад

    Una consulta tengo un ts15 igual se me dañó la tarjeta del amp quiero sustituirla, cuales serían las salidas de audio del preamplificador para conectarla al nuevo amplificador?