As someone who owns one of these Aiwa units and values it as a family heirloom of sorts, your method definitely works and I'm not going to discount how oddly effective it is, it really ain't as hard as it looks to get it apart to the point you can access the rotary encoder. Your info was very helpful as far as fixing the issue I was having, but I'd personally rather just take it apart.

The "switch" is called a rotary encoder. What happens is that, over time, the internal electrical contacts develop oxidation which can lead to the symptoms you describe; no change in volume or the volume only goes one way, either always up or always down no matter which direction you rotate it. The usual remedy is replacement of the rotary encoder, but the faulty part can be dismantled and cleaned to restore its operation if replacement isn't possible or not economical. You must clean the contact wipers as well as the knob's contact plate using electric contact cleaner, such as Deoxit or QD Electric Cleaner. You should also put in fresh silicone dielectric grease to keep the knob lubricated as contact cleaner will disperse any existing grease in the part. I've done this myself several times, though I take the unit apart and pull the board out to access and remove the rotary encoder for rebuilding as I'm not keen on breaking the cosmetics for a shortcut that may or may not work, depending on the model and how its designed.

@javierl4091

Жыл бұрын

Yes it's unfortunate they designed in an encoder with tin plated contacts on the knob and gold plated contacts on the board side. Otherwise we probably wouldn't be talking about this

@GalaxianGamer

3 ай бұрын

do you know if we can clean the micro click buttons with contact cleaner as well (soldering new one seems a hassle, i would do it if its absolutely required). I have a similar unit, I cleaned the encoder and it works, i have done it a few times by removing the entire pcb and reassembling. The buttons also seem misbehaving sometimes

@Watcher3223

3 ай бұрын

@@GalaxianGamerIt's possible, though it's not guaranteed because you may not be able to get the liquid in the momentary tactile switches. However, it's always worth a shot since if it works, you won't have to bother with soldering.

Thank you for the info!! Going to try this with mine now

Nice! Worked for my 1998 Aiwa CX-NMT920!! Thanks.

Thank you 😊 I have an Aiwa SX Nav- 75 It helped me, it works now. Thank you so much ❤🖤

This is great idea and no, its not lazy if it works. I have a very similar type of stereo, mine is an CX-ZR774 also from 1998. It sounds great and it worked well until this same exact issue started to happen a while ago. I don't want tear down the whole thing so I will try this method and post back the results. Thanks for showing us this solution.

@javierl4091

3 жыл бұрын

good luck!

This video is really great

you are my hero !

I love ❤️❤️❤️ aiwa!

old technology are the best, made with quality, and made to work good, you have a gold technology,

All my life fixing the volume knobs, specially for Sony, Iowa Panasonic sharp Hitachi aiwa techniques, and bioneer because they use the same technology. My never see someone clean it this way that will make the Load damage the switch after a few days the right way to remove the face panel and remove the board and clean it the right way and put everything back the screw hold the volume knob should stay tight all the time when you cancel it, you will kill the switch from the board

Thanks might try this one day, I have the remote so it's not a big deal but might try👍

@javierl4091

Жыл бұрын

Ah nice, Yes that's my motivation for this hacky fix. I lost my remote controller and haven't been able to find another

@niko-wx6zr

Жыл бұрын

@@javierl4091 funcionaria el volumen con un control si mi equipo aiwa desde su volumen , no sube ni baja ?

@javierl4091

Жыл бұрын

@@niko-wx6zr hola, creo que si. Perdí mi control remoto, y es la razón que trate este reparación.

I got 2 aiwas, the XH-A1000 and now the CX-NA707, 707 has the same issue as yours except the volume doesn't really work at all lol. I already had to repair the cd and replace belts inside it, Guess I will have to try repairing the volume knob now lol. The A1000 volume seems to be working fine right now, although it is a newer model, 2000 vs 1998

@javierl4091

2 жыл бұрын

Yeah probably would be easiest to find the remote, but i haven't seen that thing in 10 years

@javierl4091

2 жыл бұрын

I would like to get the tape player working, I have so many old cassettes

@TheJVCguy

2 жыл бұрын

@@javierl4091 Yeah right now I use the remote from my XH-A1000 on it, volume knob literally does nothing anymore haha. I actually just recently found it sitting on the side of the road, they were just taking it out of their house and I took it home lol. So pretty sweet for a free system. its in good shape, really just the volume knob that wont work lol

Clever repair!

I have this issue. Also have it where the buttons get muddled up (like if you press play the timer comes on). I'm guessing that's a more complicated fix

Thank you

Have an aiwa but the closest thing i have to a dremmel is a soldering iron to melt the plastic and get through lol, ill probably just fully open it but i have a question. My aiwa's buttons are messed up! My t-bass button open the cd drive and my cd drive button switches it to play cassette tapes. Not really sure how to handle this one lol, ill just pop this open and fix the volume knob for now, its my largest concern. Everything else is fine being iffy i guess, but when my volume isn't working, switching to FM accidentally and hearing really loud radio static that you cant turn down is--well less than ideal haha. My volume jumps between down and up. You have to cradle the volume to get it up to max and i just use control the volume on my input device and leave it maxed out, until the power goes out and I'm there--once again cradling the volume. Nice video though! I'm gonna give this a go tonight!

👍

I'm same aiwa stereo system is display not working. How is the problem please help me

Hey buddy nice video, I have an nsx s36 model, the main deck has stopped working probably after working for 22 years. I'm planning to hook these speakers to a cheap but good sounding power amp fosi audio bt20a, any idea how many watts are those speakers? Btw the fosi audio amp bt20a has 100 watts per channel

@javierl4091

2 жыл бұрын

so on the back it says it has a power consumption of 160W, I found an old picture where the sticker on the front says 219 W total power, so I am guessing with the powered amp its 219, so rough guess those big front speakers are ~32-40W?

@sanjayshah1498

2 жыл бұрын

@@javierl4091 thanks, I just saw it says 115 watts. I suppose the fosi audio bt20a having ~100 watt per channel would probably blow these speakers right? Or will be ok ?

Good Idea Id like to try this. I attempted dissasembly but was soon well over my head and chance of damaging something was high. What type of dremel or drill bit did you use to cut out the plastic like that ?

@javierl4091

2 жыл бұрын

All the ribbon cable inside is really a broken wire waiting to happen, that's the main reason I didn't crack it open and fix it the proper way. As for the tool, just used a standard Dremel and an end mill bit for plastic/metal. They also have the plunge cutter bits but those cut pretty fast and leave an angled bottom, i didn't want to risk damaging the PCB or board mounted components underneath so used the end mill

@jambonsambo

2 жыл бұрын

@@javierl4091 Thanks!

@jambonsambo

2 жыл бұрын

@@javierl4091 Shame you didnt catch the actual dremelling in the video, Im having a hard time imagining how its done. I might try go at it with a drill and drill bit and try and take out pieces at a time

@javierl4091

2 жыл бұрын

@@jambonsambo Yeah its unfortunate, I didnt think of making a video until I had already fixed it haha. So what I did with the dremel was just use it as a router, so I pushed the bit down into the material and lightly cut a channel around where I wanted to cut it. Then I went deeper until it was cut through. I also had a vacuum in my other hand so suck out any FOD from getting into case. You could certainly just drill a series of holes around it until it breaks free, should work

@jambonsambo

2 жыл бұрын

@@javierl4091 I can report that the drill method worked. I drilled multiple small holes with a 3.5mm bit until I could easily crack it out . Cleaned the volume control and now a Hi Fi that was destined for landfill is pumping tunes again, thanks for the great idea

I have an aiwa nsx av720 it seems like yours. mine volume control button not working correctly but your fixing way scared to me :) thanks anyway.

@javierl4091

3 жыл бұрын

yes its understandable cutting into the plastic, I thought it was lower risk than opening the enclosure and disassembling the wiring and pcb to get access to the digital encoder

@ademcomertpay1495

3 жыл бұрын

@@javierl4091 my volume button works like drunk man walking 😂 but i can handle it.

@javierl4091

3 жыл бұрын

@@ademcomertpay1495 that is a PERFECT analogy

I've tried doing that with my 1998 Aiwa but the volume still doesn't turn up are down

What can we do for cd struck and tripping

جميلة جدا انا اعشقها

So I watch your vid and saw that u took of that plastic peace there but I don't know how to do that lol so I disassembled it and it was pretty easy to get access to it and I cleaned it like u did it kinda worked but anyway can u sound test this thing?

@javierl4091

3 жыл бұрын

Nice job, glad you were able to disassemble it and get it working again. When I started to open it, I saw all the plastic connectors and didnt want to end up cracking one, so thats why I ended up just cutting the front open to get access. I would do a sound test, but the mic on my phone and camera sucks haha

@faresmilan5591

2 жыл бұрын

I did the same, that video helped me a lot thank you 🙏

"It's a 2 handed job, so I'm gonna pause"

Which is the switch for the radio

My stereo has a strange Static Sound coming out of it on every input that I don't know how to fix, so if you could help with that I would appreciate it.

@javierl4091

2 жыл бұрын

are you using a good shielded cable? I used some cheap rca cables for an aux input and that channel always has noise/static

Is the Aiwa nsx 800 can do the same repair ??

@javierl4091

3 жыл бұрын

no idea, good luck!

Que modelo de Aiwa es? Y cuántos watts tiene de potencia.

@javierl4091

3 жыл бұрын

Este es CX-NMT720 pero creo que casi todos estos aiwas están hechos así. No me acuerdo de los watts

@normhodgkinson6965

3 жыл бұрын

@@javierl4091 I have the exact radio and nothing comes on. it has power, the clock/timer button works, the clock works, the demo button works, but the power on/0ff , tuner-CD-Tape-Aux do nothing. Any thoughts ? i have the owners manual, and have followed every operational instruction many times over until my eye are ready to fall out.

@javierl4091

3 жыл бұрын

@@normhodgkinson6965 seems like the button for the power on the pcb is corroded. The CD player and tape player aren't working anymore, the motors don't spin up like they used to. Definitely have to crack it open to see the problem,

@normhodgkinson6965

3 жыл бұрын

@@javierl4091 thanks for the info. i did look inside and it scared me. i'll probably take it to a repair shop.

@normhodgkinson6965

3 жыл бұрын

@@javierl4091 i finally figured it out, kind of. it has something to do with the sleep timer. i got it to come on yesterday afternoon, and i could turn it on and off like normal, and same thing today. i turned it off couple hours ago, and it wouldn't come on. now i pushed 'sleep/timer' until PLAY displayed, then hit SET, advanced the time a couple hours, hit SET, and the radio comes on. now i have to figure how to shut off the sleep timer.

Are you a surgeon?

Sir, my sem system is not working. Please do something

@captainofiron

3 жыл бұрын

Sem system?

Bos you can't repairing old model aiwa

Unplugging it twice without plugging it in. Then plug it in for 1/64 of second for 5 minutes. Immediately Get your remote and push and quickly press... Up up, down down, left right, left right A then B followed by quickly pushing Z and left trigger at same time. If your successfully completed all that... Well I'd like to thank you for playing along.

@ThatRusticS10

3 жыл бұрын

This does not work on mine (CX-NMA845)

Please for the love of christ just make a volume up and down button. Like why a knob? Mine has the same problem, have it hooked up to $1,500 speakers but no volume

@BrendarthGaming

Ай бұрын

They said, 24 years after these were manufactured

I have aiwa i want to sale

@ANDROID.TOUFIK

Жыл бұрын

wahtssap

Xq quebraste el plástico original!!! Si podias abrir normalmente, arreglar y lubricar el potenciometro y volver a cerrar.... Dios mio

@javierl4091

3 жыл бұрын

Si, para mí hay más riesgo abrir lo, porque tienes que quitar alambres y PCBs, y son alambres muy chicas que puedes dañar muy fácil. Cortar plástico >>>> alambre quebrada y contacto falso o mal