Pioneer VSX-819H-K repair follow up!

How to reset a locked out amplifier.
Tools I use -
Soldering
Quick 861DW hot air station
Duratech TS-1640 solder iron
Multimeter
RMM760D - can be found under many name badges
Microscope
Luzky Zoom 3.5 - 90x simul-focus single boom stand trinocular stereo microscope
Camera - Lucky Zoom HD 14MP
Oscilloscopes
Siglent SDS 1102CML 100MHz 2CH
Philips PM 3305 35MHz 2CH
Bench supply
Powertech MP-3086 0-30V 3A
TL866II PLUS universal EEPROM programmer

Пікірлер: 40

  • @Ardy6
    @Ardy6 Жыл бұрын

    How brilliant are you for posting this bit. Literally had it all apart ready to diagnose. The button combo reset, daaa! Fired right up! Epic post bro, thank you.

  • @JonnyFix

    @JonnyFix

    11 ай бұрын

    Cheers mate, glad I could help!

  • @davidfarazmehr3866
    @davidfarazmehr38663 жыл бұрын

    Hi Jonny, I had the same issue. I wanted to put my new receiver in the rubbish bin Thank you so much for this video

  • @WolfBand626
    @WolfBand6263 жыл бұрын

    MiNe has been in a box for about 4 years. I was just about to take it to the repair shop. Holy cow this video saved me MONEY and TIME....SUBSCRIBED!

  • @JonnyFix

    @JonnyFix

    3 жыл бұрын

    You're welcome. Great to hear!

  • @paulcrumrine8766
    @paulcrumrine87663 жыл бұрын

    Watched the first video, without having as much technical know how but when I checked this one out, it was my exact issue. Thank you for saving me a repair charge or new purchase cost! I really appreciate it!

  • @syedshahzaib8048
    @syedshahzaib80482 жыл бұрын

    You've just saved me investing plenty of bucks Thanks Man!

  • @pedrocezardiretor
    @pedrocezardiretor2 жыл бұрын

    There we go!!! I also watched the first video, without having as much technical know how but when I checked this one out, it was my exact issue. Thank you for saving me a repair charge or new purchase cost! I really appreciate it!

  • @JonnyFix

    @JonnyFix

    2 жыл бұрын

    You're welcome!

  • @Wulfenray
    @Wulfenray2 жыл бұрын

    WOOW man... thanks you very much!! I have been able to fix mine thanks to your video! :D

  • @moemacstuffins5979
    @moemacstuffins59793 жыл бұрын

    Thanks Man=D saved both my day, week months and ten more years of pioneering XD, Thanks alot=) still cannot believe it truly that it worked=D have a good one=)

  • @Wulibertl
    @Wulibertl10 ай бұрын

    I love you. Thanks so much :))

  • @cyberworld5460
    @cyberworld5460 Жыл бұрын

    thank you

  • @Williengeorge
    @Williengeorge2 жыл бұрын

    Thanks for the videos. I went through the same procedure as you but didn't have the manual. Reset processor and away it went. Had 23 DC offset errors

  • @JonnyFix

    @JonnyFix

    2 жыл бұрын

    Well done!

  • @ProfessorOzone
    @ProfessorOzone3 жыл бұрын

    I watched the previous video as well and commented that I hoped it was just replacing a resistor, but this is so much better. YOU FIXED MY RECEIVER! Thank you so much. Really can't thank you enough. Cheers from across the pond! Oh, and why not leave the event log uncleared? What would that hurt?

  • @JonnyFix

    @JonnyFix

    3 жыл бұрын

    Hey, glad you enjoy watching these and could get some benefit from it. Clearing the event log just means you don't have to remember how many events prior to work out the issue if it faults again. If you know you started at 0 then one up is your answer.

  • @harryk.3595
    @harryk.35953 жыл бұрын

    waah cant imagine the hustle in the first video! anyway this is great revelation. I have a problem with my vsx324 nothing gives out sound in A mode (Tuner A, DVD A, CD A.....) but all digital inputs are fine, HDMI, OPTICAL , COAXIAL. so i cant even listen to fm stations and also cant hook external fm receiver! Can someone help please

  • @djotjam4639
    @djotjam46393 жыл бұрын

    I want to give you my sister my system is back 👍🏿👍🏿👍🏿👍🏿👍🏿👍🏿👍🏿

  • @JonnyFix

    @JonnyFix

    3 жыл бұрын

    I think she might have something to say about that 😏

  • @grahamtownsend3751
    @grahamtownsend37514 жыл бұрын

    what a pain, old school is best, ie a speaker protect relay

  • @nothn06
    @nothn063 жыл бұрын

    I was just about to reply on your first issue with this fix. My display still doesn't work. Let me know if you know anything about that. I've tested the display on another unit and it works, so it's not a hardware issue on that side of things

  • @JonnyFix

    @JonnyFix

    3 жыл бұрын

    If everything functions ok and it's just no display I would start by checking that the power supply to it is working especially the -30V line.

  • @nothn06

    @nothn06

    2 жыл бұрын

    @@JonnyFix I found the 5v hdmi line is absent. I did have a reference then they both started doing the same thing. If you're interested, I'll let you know what I find

  • @nothn06

    @nothn06

    2 жыл бұрын

    I didn't have my boards mounted to the rear cover. It states that if you run the unit without the grounding attached correctly, there can be damage done to a particular device. Somehow i don't think that's my issue, but a possibility. I believe the main MCU isn't putting out data for the display. A lot of info available online but probably beyond me at this point. Might come back to it when i have a bit more experience

  • @kevinthompsonmusic1435
    @kevinthompsonmusic14352 жыл бұрын

    So I had the same issue, but when I press Adv Surround and power it comes on for like 4 seconds then shuts off again. No other combinations for reset or diagnostics work! Hard to find a solution or simply find the cause but I suppose I can test the jacks in the back with multimeter.

  • @JonnyFix

    @JonnyFix

    2 жыл бұрын

    What about when you turn it on normally? Does it stay on? If not I'd guess you have a power supply issue or problem relating to the processor or standby control related circuit.

  • @kevinthompsonmusic1435

    @kevinthompsonmusic1435

    2 жыл бұрын

    @@JonnyFix so if I just press the power button to turn it on normally nothing happens. When it happened the very first time, I had everything plugged in and powered it on then it shut off 4 seconds later. Since then I’ve unplugged everything and now it only responds with the Adv Surround + Power combination, which it then just shuts off again.

  • @JonnyFix

    @JonnyFix

    2 жыл бұрын

    @@kevinthompsonmusic1435 Yeah the fact it doesn't stay on I can only still guess maybe power rail issue unable to support processor function, or something along the lines of processor function, corrupt firmware, damaged processor etc. Only option would be to get service manual and go over everything.

  • @kevinthompsonmusic1435

    @kevinthompsonmusic1435

    2 жыл бұрын

    @@JonnyFix thanks for the help!

  • @zeeshanonlyme

    @zeeshanonlyme

    Жыл бұрын

    I have the same issue. Turns off after 4 sec with a click sound. Did you find any fix?

  • @Williengeorge
    @Williengeorge2 жыл бұрын

    In Palmy by the way.

  • @v8snail
    @v8snail4 жыл бұрын

    What ridiculous firmware. Designed to protect the unit from faults but effectively trashes it. How hard would it have been to have it display the fault from the get go complete with reset instructions. Clearly built to impoverish the owner and boost the authorised service centre business.

  • @JonnyFix

    @JonnyFix

    4 жыл бұрын

    All other brands I've seen have still turned on which is why it didn't cross my mind