28 күн бұрын
7 ай бұрын
8 ай бұрын
10 ай бұрын
10 ай бұрын
11 ай бұрын
11 ай бұрын
11 ай бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Жыл бұрын
Пікірлер
@FederalMenace 6 күн бұрын
My guess is the weight of the speaker is substantial and its too loose inside so its breaking free of the wire
@techtips983 2 күн бұрын
You could be right. It isn’t large but does have some weight and isn’t mounted solid to the case. Thanks for the comment.
@FederalMenace Күн бұрын
@@techtips983 every speaker has a magnet. Every magnet is heavy, relative to it's size
@glensnowdon1383 11 күн бұрын
Great video, i have the same board with problems with a few channels with the OL leds not working, one with the green signal led and the master right leds channel dimming when you pan hard right, i was wondering if you could tell me were i could buy replacement hex screws on the top of the board as the ones i have in have burred around the hex and i have had to use a dremmel tool to unscrew them, Regards Glen.
@rogerhuang4205 17 күн бұрын
This is amazing! Too bad I have a reload issue that I cannot fix, suspect I need to open the entire gun to find the reload sensor
@themostlymikeshow2582 23 күн бұрын
Thanks for the informative video. I have that same model of receiver and the same problem. Mine was from a power surge which took my TV out and many other items in my house as well.
@techtips983 22 күн бұрын
Yikes! Sorry to hear that. Were you able to get the receiver (and other items) working again? I'd be interested to hear what components had to be replaced...
@williammarthe9619 Ай бұрын
Thanks for the word at the end of your video 😊
@sabatorious Ай бұрын
Thank you, I was stumped and about to saw into it. Couldn’t find anything last year like this, checked again before tearing into one and found your video. Re soldered the speaker wire and off to the races!
@techtips983 Ай бұрын
That's great to hear. Thanks for the comment.
@OneJollyEye Ай бұрын
Thanks for the video! Keep doing these!!!
@techtips983 Ай бұрын
You are welcome. I've been slow coming out with new videos but hope to have a couple out in the next couple of weeks. Thanks for the comment.
@jcschwarb Ай бұрын
Thanks for posting this. Trying to repair our churches. The D501 and D516 show a burn brown hue on all three 27v PS. Fault is bottom speakes and bass is inoperable. The top speakers work but clip at medium volumes.
@techtips983 Ай бұрын
Hi. Thanks for the comment. As shown in the video, a discolored component may or may not indicate it is faulty. You haven't said whether you are equipped or knowledgeable about testing and troubleshooting. If not, you may want to take the system to a qualified technician. Usually with a diode you can use a multimeter to check the forward and reverse characteristic of the diode (although this wasn't conclusive in my video). Still, with power off, you could start by checking the D501 diodes. Since you have some output on the top speakers you must have some power supply voltage to the associated amplifier module. The best way forward would be to, first check the actual voltages of the power supplies. You should have over 300 volts coming from the PSI Power Stand board. That goes to the auxiliary power supply board as well as the 27volt power supply modules. (Be careful checking this as it is dangerous voltage.) If you have the 300V+ you should then check the output voltages on the three 27volt supplies. Also, check for the 24V, +15V, -15V, 5V and 3.3V outputs from the auxiliary board. If you have all those voltages the issue may be with the power amplifier modules. If not, you will have to troubleshooting the area where the incorrect voltages are coming from. I probably can't help much with more information. You can email me at [email protected] if you have more questions.
@Hodori-mf3ct Ай бұрын
Thanks for the video. I don't have the skills that you have but ill try 😊
@techtips983 Ай бұрын
I'm sure you will be able to do the fix. Thanks for the comment.
@FederalMenace 6 күн бұрын
You have nothing to lose on a gun that doesn't work
@DEI305 2 ай бұрын
Awesome job! Many thanks for sharing..Is this problem across the board for all Touchmix 30's?
@techtips983 Ай бұрын
Hi. Thanks for the comment. I could say for sure whether the problem is across the board, but I have had several people contact me looking for information, so I guess it is common, and similar for the 16. The lack of a cooling fan may be significant as it doesn't get pretty warm on parts of the board.
@user-fm5sg6ld9m 2 ай бұрын
Can you fix one that is not reloading please
@techtips983 Ай бұрын
Thanks for the comment. I didn't run across that particular issue so don't know whether I could fix it. I would be willing but I doubt that it would economically feasible to get it to me.
@JTAITSINGER 3 ай бұрын
How’s the tv working now? What’s that tool you used to input the voltage into the LEDs?
@techtips983 Ай бұрын
Thanks for the comment. So far the TV is working well. The tool I used is called a "Multi-Purpose LED Light Source Tester" Model GJ3C, made by SID LED. I purchased it on Amazon.ca
@CharlieSawka-kz8pm 3 ай бұрын
Suppose I had the same situation but the fuse didn’t solve the issue ? I only have a volt/ohm meter. And I can read the schematics . Got signal going in but not out.
@techtips983 Ай бұрын
Sorry I'm so slow responding to you. I'd suggest you start by making sure you have DC voltage from the power supplies. If you have a voltmeter make sure you have +15VDC across C39, -15VDC across C311, and +5 VDC across C315. If any of these are missing, check the voltage going into the related regulator (Q31, Q311, and U1 respectively). If you have the proper power supply voltages you will have to troubleshoot the audio stages, which I can't go into here. I'd be interested to know whether you have it working yet, and what you found... Thanks for the comment.
@danruiz902 3 ай бұрын
Hello, what was the result of the repair? I have a Bose with exactly the same problem, I already changed the diode but the system still does not activate, perl strangely there is 8 volts in the vcc of the 2843 and I think it should be 12v
@techtips983 3 ай бұрын
Hi Dan. You have probably already watched Part 2 of this repair, but if not there is additional info there. I'm going by memory here but I read something that suggested IC601 (UC2843) will activate with 7 or 8 volts (which is divided down from the main V+), but you won't get the full 12 volts until you have the output side of the switching regulator working correctly. So I think the 8 volts is ok. But probably the switching circuitry is not working. You didn't say which diode you changed. Was it D601 (the one that was discolored in the one I worked on)? I also found D607 shorted, and I also changed out Q601. If you haven't already done so, I would suggest you use a multimeter to check all the diodes on that board. If that doesn't turn up anything you should probably change out Q601 and possibly IC601. I'm not sure what to suggest from there. I don't know your knowledge/experience level with this type of work but I always suspect: bad connections, electrolytic capacitors (especially if they are old), semiconductors, and any other components that dissipate significant power. Unfortunately, troubleshooting these switching power supplies is difficult because of the feedback loop involved. If you have other questions or need a schematic email me at [email protected]
@danruiz902 3 ай бұрын
@@techtips983 Thank you teacher, indeed the d601 was defective, it was not shorted but rather it marked 400 ohms on both sides as if it were bidirectional, I changed it and started the power supply. thank you for your valuable help😁
@NeonNinja097 4 ай бұрын
Great work and big help. Thank you
@techtips983 Ай бұрын
Hi thanks for the comment. Glad it was helpful to you.
@jtpsss 5 ай бұрын
Hi, my tm30pro touch screens's ic(u1) lose, But I don't know its model.Please tell me.😂
@techtips983 4 ай бұрын
Hi. Sorry I'm slow responding. I'm not sure I understand your question. You mentioned U1 in relation to the touch screen. There are several ICs labelled U1 on the schematic. (e.g. U1-28, U1-51, etc.) None of them appear to related directly to the touch screen. Can you provide more detail?
@Georgiamoon1916 5 ай бұрын
How about upholstery ??? A New challenge , I have a simple square foot stool !
@techtips983 5 ай бұрын
Great idea. I may try that with an old stool I have that needs fixing. I don't have a sewing machine that could handle upholstery but maybe a simple stool wouldn't require that... Thanks for the comment, and suggestion.
@natedoglanctot 5 ай бұрын
Thanks for the video. I was able to fix my kids gun because of your video. Kids will be happy.
@techtips983 5 ай бұрын
I'm happy to hear that. :) Thanks for the comment.
@gregstroup549 6 ай бұрын
Out of curiosity, is the mixer still available. Thanks.
@DanBader 6 ай бұрын
Positivity rude of that chip supplier not to mark orientation. Noticing something similar on TIP122 data sheets that they've stopped mentioning whether the heatsink was connected to collector or emitter. That used to be in all the pinout diagrams.
@TarshishedCactus 7 ай бұрын
You have the best video on youtube for checking the bais on a JVM! Thanks so much!
@masterchr 7 ай бұрын
Great video. Any Idea how to a "load" the gun, the trigger seems to have an issue... 😞(My model is the one that is loaded when you shake it or have a sudden move downwards)
@Stratman1970 7 ай бұрын
Once again Ron, I can't thank you enough. I sure appreciate your willingness to work on my stuff, and I sure enjoy watching your videos as you explain what you did to repair it! Have a wonderful day!!
@scottsiegel5730 7 ай бұрын
Can you provide any insight on the 48v phantom supply voltage source? I don't think it was included in the ps schematic you showed.
@techtips983 7 ай бұрын
I have a one page troubleshooting guide for the phantom power section, as well as a schematic for that part of the circuit. Email me at [email protected] and I'll send it to you.
@scottsiegel5730 7 ай бұрын
Thank you, email sent.
@Georgiamoon1916 7 ай бұрын
You are amazing !
@techtips983 7 ай бұрын
Thank you! 😃
@jassradio9203 7 ай бұрын
Good day,i have a problem with my lcd of my touchmix 30Pro,turn into white display.do you have an idea where can i buy a replacement.tnx
@techtips983 7 ай бұрын
Sorry, I don't have a source for that. I would expect a display would be a custom part and you would have to get it from QSC. I've never ordered directly from them so you would just have to check online for their service support site.
@reinih.6382 7 ай бұрын
Thanks for the nice video. I always have a Bose PS1 for repair and I have a little question. Did the amplifier works without the speaker or is it necessary for switching on the amplifier?
@techtips983 5 ай бұрын
Sorry I'm slow responding. The power supply / amplifier can be powered up without connecting the speaker. I did that while troubleshooting the power supplies. This brings up a common question, though, as to whether you can damage an amplifier by powering it up without having the speaker connected. As I understand it solid state amps can be powered up without connecting a speaker. Tube amps (which I don't know as much about) are different, however. I did a bit of research and some people say no load on the output transformer can result in damage to the output tubes. I'm not an expert on this so you might want to do further research... Thanks for the comment.
@andrewwalsh5837 8 ай бұрын
Hi there, Andy from the UK, I do them at work for a living, can be a daunting task, there are some models i really dont like working on, some are easy some not, great fix by the way, but i did notice when you replaced the one faulty strip, when you tested the previous working two full arrays, a couple of leds didnt light up instantly like the rest, so maybe the same problem will occure in a short time, it is a time consuming process and one mistake with the lcd panel is game over, its happened to me a couple of times either cracking the panel or causing a problem with static on the buffer panels so you end up with no raster, old talk lol, but let us know if it stayed working, many thanks Andy UK
@techtips983 8 ай бұрын
Hi Andy. Thanks for the comment. And good catch about the LEDs not lighting up. I'll take a look. So far the TV has been working but I'll keep an eye on it...
@AudioSistemasLuna 8 ай бұрын
Donde puedo comprar conseguir el instructivo de reparación?
@techtips983 7 ай бұрын
Sorry, I won't be able to help you with that.
@robertzollner9881 8 ай бұрын
Where did you get the scematics and the service manual?
@techtips983 7 ай бұрын
I contacted a friend who worked in the industry, who provided a copy. I don't want to get that person in trouble by sharing their identity or the whole package they provided. So far I have shared screen captures of selected schematics with a few people... If you want something specific email me at [email protected]
@Stratman1970 9 ай бұрын
Thanks so much Ron for fixing my stick. Your care and expertise is so greatly appreciated!
@techtips983 8 ай бұрын
Glad to help
@bowtiethirteentwenty8627 9 ай бұрын
This is a great video for people that have the bad cement issue. Nicely done. :)
@larryshaver3568 9 ай бұрын
I have a VM changer like that
@ronaldcjohnson 9 ай бұрын
Just one. I think they were set up as sub woofers and the right and left channels were supposed to be connected to “Satellite” or “Remote” outputs. On Satellite the internal speaker also worked but on Remote just the Remote speakers were on.
@Jammerk40 9 ай бұрын
How many speakers were in those cabinets?
@techtips983 9 ай бұрын
Just a follow up comment about this project...About six months after I finished this repair, I got a call from the church where this speaker is used. They said the speaker had suddenly started distorting. I happened to be nearby and dropped around to test it in-situ. Sure enough, the speaker was distorting. I took it back to my shop and checked it out and found that the driver (speaker) that I had replaced was the culprit. I did a test of the cone movement by carefully depressing the cone with a thumb on either side of the voice coil. I could hear, and feel, the voice coil rubbing on the magnet. Something had changed in the geometry of the cone and coil. I checked the other drivers and they all moved smoothly. When signal was applied to the faulty speaker, the rubbing against the magnet caused distortion. I contacted Bose and they are sending out a new driver. This is something I've never seen before, and the Bose tech said it was very unusual as well. I have no idea what caused this. If you have ideas, let me know. I haven't received the driver yet but will update this when I have it installed...
@Nikson1983 10 ай бұрын
Tenho medo em comprar essa Mesa e dar problemas😢
@bradschultz8561 10 ай бұрын
My Touchmix 30 has no Main out sound at all now. It started with less on the left side and now neither right or left have any sound. I tried to find the caps on the board but there was no indication as to which one they were. I did find one pooched out larger cap. but it was not close at all to any of the output stuff.
@Jammerk40 10 ай бұрын
When I buy these I always turn down the backlights to reduce burnout and make it last longer!
@techtips983 9 ай бұрын
Yes, I did that on the new Samsung that I got to replace the LG. Thanks for the comment.
@Jammerk40 10 ай бұрын
I watch a fellow by the name 12 volts whom works on Big screen TV's all the time most of them he gets from people throwing them out and he fixes them! Sometimes! I don't know if that is whom you saw the video on how to replace those LED's! But you did a nice job!
@Jammerk40 10 ай бұрын
Hi I have Bose 501 series V floorstanding speakers that I bought in 2001 and never had any problems with them yet like foam rot that hasn't happened yet amazing to say! It probably wouldn't hurt to recap the crossovers but I don't know how to get to them at this time! So anyway I enjoyed the video!
@techtips983 9 ай бұрын
Thanks! The crossovers are somewhat hard to get at. As I mentioned in the video, the wiring inside the cabinet is solid core so you have to be a bit careful that you don't bend it too many times or it will break off. There is a lot of foam inside the cabinet to move around to get at the crossover as well.
@Jammerk40 10 ай бұрын
That is a crosley cartridge that you see a lot on those suitcase models!
@techtips983 9 ай бұрын
Thanks for identifying that. I'm not that familiar with the different cartridges. I bought the replacement from Amazon and it didn't identify it as Crosley, so maybe it was a "knockoff". It seemed to work ok though...
@eljaime3839 10 ай бұрын
Mi touchmix 16 has that problem 😒
@sugaradaddy 10 ай бұрын
good tip!
@techtips983 10 ай бұрын
Thanks!
@fanou101 10 ай бұрын
Good stuff. I've heard that lubing the T-shaped groove (eg, white lithium grease) can help pull and feed the gasket all the way if you're doing it alone. One concern I'd have in your case would be rot getting at your wooden shims because of rain, snow, or ice. Covering the shims with a good coat of exterior paint could perhaps extend the life of your entire system.
@techtips983 10 ай бұрын
Thanks. I hadn't thought of using lithium grease but that would probably have made the job much easier. The wooden shims were made using treated wood, which will probably help, but your suggestion of exterior paint sounds like a good idea. If I can get to that before winter I'll probably do that...
@Ayesuh 10 ай бұрын
Using plastic shims would be optimal if yall talking about wood shims..... cedar shims resist water a bit better too.... just started the video though
@techtips983 10 ай бұрын
Yes, plastic would be ideal, and probably worth the extra cost over the long term. Thanks for the comment.@@Ayesuh
@bowtiethirteentwenty8627 9 ай бұрын
Soapy water will work.
@benoitdugas745 11 ай бұрын
I would like to but that guitare on the wall let me know
@davidt8438 11 ай бұрын
Excellent job sir. You have a logical mind and it produced a great result.
@techtips983 10 ай бұрын
Thank you very much!
@airmailman1971 11 ай бұрын
You did a great job with this video. I liked the idea of the shims. I have 3 garage doors so it would be sort of expensive for me. I'm not trying to keep the 'cool' out, I want to keep the heat out. haha Thanks.
@SONORSQ2guy 11 ай бұрын
I have great respect for your talent sir. Well done. 👍
@techtips983 10 ай бұрын
Thank you kindly