Troubleshooting **FIX** JBL Home Audio PowerBass Subwoofer PB10 - Part 1 

I hope so. Thanks for encouraging me to fix up the soldering issue.

First off, thank you for this video. It's given me a future project to work on! Next, i have the pb12 so it basically the same as yours but my two front L/R speakers are the same SONY ones but i believe mine are a generation ahead cuz the grills on yours are the same for my surround ones (smaller ones though). lol. I bought my two front ones a few years later from when i purchased my now surround (was using them as my front ones for the time being) and the rest. I just thought it was funny how almost similar equipment we have knowing there are a lot of types of speakers out there. EDIT: My surround with the same grill as your front ones: SS-MB115 My current front towers that i believe are a generation older than yours: ss-mf600h

Thanks for responding mate. When turned on doesn't turn on the main on light, only the digital volume window in the front lights up and when turning the volume control up and down you'll see digits going up and down showing the volume levels. I had a good look at the circuit and noticed there is a light brown small burnt area with damaged led trace and tried re-soldering but got worse and couldn't repair it.

WOW Well done It looks easy when you do it :)

Great advice! Very much appreciated. I assume these issues extend to the PB12?

Thanks

Thank you very much for post the video! My Definitive Technology Super Cube Reference subwoofer has the exact same 60-cycle hum as yours without any source connected to it except the power supply. I checked the capacitors, visually and with a tester, and they were good. I watched your Part 2 of the video on how you checked the diode bridge rectifier and did the same on mine. When I reversed the negative and positive, I also got readings. So, I think I will try to replace it. My question is how do I know what specs of diode to buy because I only saw "R S ..." on the top row, "GBU 8J" on the middle row, and "- AC +" on the bottom row? I would appreciate it very much if you and/or anyone could give me some guidance on this. Thank you so much in adcance!

Mine just went on me yesterday. The wife had mentioned that the big thingy in the living room was making noise and then it just shut down yesterday. Planning on popping it open and giving it a once over to see if this is my issue! Thank you for posting this!

Would it be the same capacitor for the PB12? Thanks for the video.

I have owned this model of sub since 2008 and it has always treated me good. I have recently begun remodeling the maneatre. Yes, a cross between mancave and home theatre. I did dat. At any rate I'm on my third and looking for my fourth. Gonna have some good bottom with POWERBASS10 x 4. In other news, a neighbor gifted me a JBL SUB145 and the green light comes on but no sound. Upon inspection of the guts I find some crusty beige stuff that looks like dried caulk all up and down the two 6800mf 50V missile silos. I'm gonna go out on a limb and presume to know that these things do not indeed get caulked with beige colored goo in the manufacturing process. I'm telling you it's all over the neighbor's house and the front yard and a few lawn ornaments and everything. Is it a matter of getting down to antique painting restoration techniques and chipping away one tiny pixel parcel at a time in order to make this right? Or is there an easy peasy chicken greasy method to this madness?

Hey Bro, I am from India. I have a JBL 3.1 (sound bar + 10" Sub) for the last 10 months and was in love with the performance. I used to set bass settings at 18 and was working the best for me. Now I dont get that punchy bass from sub since last month but it works(not as crisp as before). if I set to 18, its much boomy. So I set to 12 and feels somewhat okay but still some bassy beat sounds feels like hitting tin or just flat tapping. sporadically i hear some rattle/noise too from driver along with bassy rumble. One month back, I played one dolby test video at 70% volume. I believe this problem started since then. Do you suspect something happened wrong with driver or some electronic components/joints gone bad when I played a dolby test at high volume?

Thank you!! Was about to toss mine out but now on ebay getting parts.

Boa tarde meu amigo, muito bom video, ganhou mais um escrito! Tenho um PB12 ele funciona normal, só quando eu ligo ele, ele faz um barulho estranho, mas funciona. vc teria alguma ideia para ajudar ??

Is the crossover point adjustable with speaker level input or is it fixed?

What would you say man, im an Audio Enthusiasts and own All Klipsch speakers and subs, but my Aunt gave me one of these 10s today and im just curious your opinion on it? Its kinda hard for me to get to my rack to start testing just one sub. But I'd like to know what this tiny powerbass can do lol??

Very much doesn't look like the problem of my d10, mine sounds like mains frequency or something, it's also not a sine wave, more crackly and after powering it on, after a second, very consistent... Might still be caps, but they look just fine 🤔

I have a weird problem where the R1 resistor was burnt out and replacing it only caused the light to turn green instead of red but still not getting any sound. I feel it vibrate but not getting anything else. Any advice?

Just curious... Recently purchased the PB12 to replace a earlier model JBL PWS-1200 (front firing, not as deep on the bottom Hz as the PB12). Coming on and receiving signal it screeches. Going off after no signal for 5-10 minutes, does this clicking sound for about 15 seconds. Anyone know if this is normal? Or am I about to need this fix? Works GREAT, by the way!!!

Do you know how to fix a precision power PC 2600 car amplifier?

mine is different its for a JBL3,1 is there a reset for the sub? I have no light at all and no sound thing is only 5 mts old any Ideas

I know this is a crazy old video but I have a PB10. Had it for years and has been great, until an issue came up randomly. Normally the sub will detect sound and come on and stay on and running and when sound stops it will stay green for about 10 seconds or so then turn red and will go to sleep or whatever it does, but lights will go red. Now you half to have the sound turned up way high or the lights kinda are half green and half red and the sound is intermittent. I pulled the board out cleaned everything off of dust and such. Fuse is fine. No bulges. Messed with settings, nothing helps. It was fine forever now this. Any suggestions?

My sub is not powering up checked the circuit board didn't see any popped capacitors and the rest of the parts look good. In this situation what could it be?. Any suggestions?

Hi, I have a woofer from a jbl sb150 set that seems to be paired with the sound bar, but no bass is coming out. Have you ever heard of this issue?... Many thanks in advance!

Hi Vestigal Voice- My sub went out a while ago, and I opened it up and saw the fuse was burnt. I replaced it, and then when I turned it on, it buzzed for half a sec and then didn’t turn on at all. I opened it up again, and saw that the new fuse was burnt. I did this twice I got the same result. The fuse I used is the exact one in the sub. Any ideas what could be causing this? Thanks in advance!

I had the same problem with my sub. I replaced the capacitor and the new one popped. I also noticed there is a burnt spot on the board nearby where the capacitor is

mine dont make that that noise it just has a lil pop sound and dont coinnect

Hi man I have 4 of those capacitors but they seems ok nothing wrong...what else could be...I have the buzz

Friend I have a pb10, can you tell me what is the output voltage of these three blue-yellow-blue wires from the transformer?

Hi brother I have jbl 3.1 soundbar. My soundbar not paring with sub woofer. I do reset many times but it’s not connect . And sub woofer light indicate white colour at all the time. Do u have any idea about that plz reply me brother thanks

I got a question ,how do you know the exact size capacitor ?

Where can i find that serpent on your table?

the lil dioeds look a lil burnt under on the board n ot sure on the name of it but not the ones with color looks like a lil battery and other ones with color are burnt blackl

hey man, do you know anything about a Jbl replacement part 80121 / CHV2522, and where i can find one?

Does anyone know where to find that fuse?

Mine one is red light then got signal input turn green light but no sound what problem TQ.

Subwoofer can be connected to computer?

The funny ting is almost every jbl sound system is like this 💀💀