After taking off the first one I noticed no polarity mark on the capacitor or on the board (different from all the others). Polk offers three different ways to use the TL2/PSW111 combination. A mission like that requires more than engineering expertise. had expired so I was going to have to either fix it myself or get a new one. Replaced the 2 47µF 63V Capacitors ($0.82 ea. Disconnect the unit from power and your stereo system, Open the back of the unit, there's like 20 screws (for good reason as the thing would shake itself apart otherwise). Also remove the heat-sink supports (stuff will now get kind messy as there's thermal paste all over the place. I wonder if there is some adhesive / rubber gasket that is holding it in place. Add to Wish List. i just ordered the caps for this amp, and thank you for this fix. Not that the PSW111 … Experience the strongest bass you'll ever feel in one of the smallest subwoofers you’ll ever find. Small enough to hide behind (or in) furniture or tuck into a corner, the PSW111 easily disappears from view. Polk Audio PSW111 & RF111 Amplifier Assembly RF1250-2 (220v) Please note, All Electronic Parts sales are final and are non-returnable. Tolerance is 20%. * TONE is eager to award the TL2/PSW111 speaker combination one of our Exceptional Value Awards for 2011, and they will be the speaker to beat for one of our Product of … It is not on the power supply/amplifier board. Thx, may be related, I'd start with the caps and see where you land after its done, I have the same problem as Rdorigo (see November 5, 2020 at 10:44 AM)"It emits a "pop ... pop .... pop", and the led flashes at each pop, regardless of the position of the "Standby, Auto or On" switch"Any ideas as to what this problem is?Thanks,Steve, A few months ago I started noticing that even when I wasn't using my receiver my sub-woofer was making popping sounds at about 1 pop a second. Disconnect the woofer from the circuit board (the pins are labeled so you don't need to worry about taking a picture yet). Also would this help to identify which component has gone bad? Going to be diagnosing my red led on at all times, psw-505. Had the same classic symptoms as others and decided to replace all caps while at it. Wouldn’t have known for sure that only the two 47 µF @ 63 v electrolytic capacitors were defective until going through this process. Great insights about the capacitors and resolving the heartbeat issue. I’ve just started hobbying with electronics after 25 years away so I’m really just polking around at the circuits. Note that I'm not sure which/what combination of these fixed the issue as I replaced them all at once. hello all. At just a tad over a square foot, this is one of the smallest subwoofers you can buy, and with the combined power of Polk subwoofer technology it's also one of the strongest, biggest, deepest subwoofers you'll ever feel. If you forget I believe there's a crossed circle icon next to the negative leads. If you do end up seeing this maybe I can link up with you on reddit or something. I get a red LED when it’s turned on but no other response. as a general purpose tester, I think it can test JFETs. :). Can be tested, but strict arrangements will have to be made regarding pandemic-disease (masks, hand sanitizer, etc.) THANK YOU SO MUCH FOR THIS!I had a periodic hum coming from the subwoofer. Polk came back and stated I could buy a replacement amp for $100. Strange, I'm not sure what happened to Craig's post :(. About this item: > ULTRA-COMPACT POWERED SUBWOOFER FOR EXTRA PUNCHY BASS – An 8" Dynamic Balance woofer, specially-tuned downward-firing port & on-point speaker geometry helps deliver accurate bass with added depth that pumps up your movie, games and music experience > LOUDER CLEARER SOUND EVEN AT EXTREME … Hi,I recently repaired my friends PSW111 and found this post helpful. Polk Audio’s claim of “Big Speaker Sound Without the Big Speakers” is spot-on. I'm having the same problem on my PSW110. thanks Peter! This is a relatively modest appearance with an unpretentious (but quite high-quality) black vinyl finish. The PSW111 packs all the power of Polk Audio technology into just a little over a square foot. Nice tool to have around. Its compact design is the perfect complement to Polk RM Series and SurroundBar™ loudspeakers. Put everything back together (may want to replace some of the thermal paste) and cross your fingers that it works! Don't waste your money on BOSE, get a quality sub from say svs! In this video, I demonstrate how to replace the amplifier module in a Polk Audio subwoofer. Eh, not sure I want to spend the money. Eeeek! i have one question. Hey man I just stumbled upon this forum to replace my capacitors, but i do have a clean board none the less. It didn't affect functionality, but it was quite annoying.... something unacceptable in my home theater setup. Its compact design is the perfect complement to Polk RM Series and SurroundBar loudspeakers. Does anyone have a link to these capacitors at an online store? Its 8"" Dynamic Balance composite cone driver, special circuitry inside the amp and a solid MDF cabinet with internal bracings ensure clean, detailed lows, while limiting distortion. Heavy-duty MDF construction ensures perfect volume and distortion-free low frequencies, while eliminating internal standing waves and performance-robbing resonances. They are both labeled 35V 4.7UF. See All Buying Options. It features Klippel Distortion Analyzer technology, optimizing the woofer's motor structure, voice … Polk Audio PSW111 is designed for use in the home in entry- or mid-level musical and theatrical complexes installed in small rooms. Thank you! Did anyone experience or try this out? Is the list provided by Peter on April 22, 2019, the definitive list? Glad to hear people are reviving these subs :). Excellent speaker. Style: Single Change. Or, is there an additional issue? Thanks for calling my blog random :) but seriously if you want me post an image here or something let me know. ), a little thermal paste and everything is working perfectly. Original Post: This was a fairly decent subwoofer, while it worked. If you look at mrfxr link I think they're circled, hey guys. The driver itself seems to work connected to another amp. Comes with original box and power cable. Could it be the 47uF caps everyone is talking about or the FET? PSW Series subwoofers blend perfectly with systems made up of other Polk Audio loudspeakers, such as TSI, RM and R/T/M Series speakers. Especially the two 47uF/63V ones that measured 1 pF. These are the capacitors I replaced and what you'll need. 47uF 63V capacitors, thanks to detailed investigation by Craig Brown (See comments below for details). Polk Audio PSW111 Powered Subwoofer Port Technology. My Polk PSW110 also stopped working - no sound. Make sure to remember the polarization of the holes. Does anyone have any help on how to identify which ones are the bad ones based on what I am experiencing? then i pushed on the plate from the inside. How do I sync the Polk Omni SB1 Plus sound bar with its included wireless subwoofer? Also, all but the large power supply capacitor (C24) were all out of tolerance. I recently bought this guy: https://www.amazon.com/dp/B07C5LC486/ref=as_sl_pc_tf_til?tag=thehesiod0e-20&linkCode=w00&linkId=251a20fd9aa7303aa984e7126700857e&creativeASIN=B07C5LC486. Smart circuitry, superior compression and an intelligent amplifier deliver highly efficient bass with low distortion and enhanced blending. State-of-the-art optimizations to the motor structure, voice coil alignment and suspension ensure the best, most efficient performance at all volumes. or seeing if you can get a credit card between the gap. :), ordered my caps yesterday, hopefully it works out :D. I'm about to do the repairs, and to replace all of the caps. Like-New condition. I then tried different outlets and different connection methods. Speaker type:powered, bottom ported Nominal power handling:150 watts Peak power handling:300 watts Impedance:n/a ohms Sensitivity:not specified by manufacturer Frequency response range:36 – 250 Hz (+/- 3dB) Unit weight:20.5 lbs Unit dimensions:14.25 x 17 x 14.5 inches (width x depth x height) Warranty:3 years (amplifier), 5 years (driver) User manual and spec sheet: here and here The PSW111 packs all the power of Polk Audio technology into just a little over a square foot. 1- 400v polarized 150uF capacitor (big one), 2 - 63v polarized 47uF capacitors (the differently colored ones), update: It seems like you may only need to replace the. The biggest pain is getting off all the damm glue. 1-38 of 38 … Can't remember the Q-number, but part number is J105 (JFET N-Channel 25V, TO92 housing).Total cost less that $10. The FET is on the input and control circuit board. That sub and the repaired Polk sub (capacitors replaced by me) have been used in a dual sub setup for almost 4 years and both are still going strong. Phone : 0251-8650 351 | WA : 0899-446-8282 | IG : @poltekakabogor | twitter : @akabogor | E-mail Office : akainfo@aka.ac.id | Pengaduan : pengaduan@aka.ac.id Replaced the 2 caps mentioned...no more heartbeat! Question, I bought all the capacitors through digikey and soldered the new capacitors in but ran into and issue with the two small capacitors near the hand marked 5 on the yellow round paper sticky. Experience the strongest bass in one of the smallest subwoofers you’ll ever find. All positive reviews › brian murray. The system can be used with your speaker level outputs, line level outputs, or, if you have a multichannel home-theater system with an LFE input, that will also work. Many thanks Alex! Measured each of the 12 OEM electrolytic caps using my Fluke 289 with the following results, seeing which path per the web site is the better approach.150 µF @ 400 v = 145 µF120 µF @ 63v = 115 µF100 µF @ 35 v = 100.2 µF100 µF @ 25 v = 108 µF47 µF @ 63 v = 30.5-33.3 µF (Ah Ha, value continually scrolling through this range during measurement)47 µF @ 63 v = 40.2 µF (not so good either, but at least measured value stable during measurement)47 µF @ 50 v = 46.6 µF47 µF @ 50 v = 45.7 µF10 µF @ 63 v = 9.6 µF4.7 µF @ 35 v = 5.36 µF4.7 µF @ 35 v = 5.35 µF4.7 µF @ 35 v = 5.45 µFVerdict is in. does anyone else have this? Given a new one is ~$150 I decided to try fixing it. Any suggestions on how to remove the plate that is stuck in the subwoofer box?Those 16 screws really had that plate stuck in there. Hello and thank you,I finally repair my Polk PSW111 with the change of the two capacitor 63V 47uf.All for $ 2.18.The purchase of the Bose 700 Subwoofer will wait a few more months.Thank You. Polk PSW111 Powered Subwoofer Reviewed Although Polk is known for high performance but affordably priced loudspeakers, this is one of its lower priced models. MANY THANKSThanks for taking time to research and post this solution. 5.0 out of 5 stars Tight, clear, bass. But if you wanted I could take a pic of my board and somehow get it to you so you can read the resistors. I have a PSW111 with that heartbeat, however, in addition, I get quite a bit of static crackling sound from the membrane when the sub is turned on, connected to an amp/receiver, and firing. As well as a lot of low frequency crackling.I'm thinking I either have other caps that are bad or I did a crappy job at soldering these 2 caps.Any ideas?Thanks! The FET Q340 on the pre-amp board was shorted, I used a NTE451 FET. does any one still have one of this PSW111 amps? This will be the 2nd time this amp board has failed, the original and replacement. Mine wasn't very hard to remove, there's no glue, just compressed foam. It does seem like there are a lot more than 6 caps on the board in the picture above. Changed the 2 capacitors of 47uF and 50V and that fixed the heartbeat I was hearing even when I had the subwoofer disconnected . Does anyone know if that is the capacitor issue? Looks like only replacing the two 47 µF @ 63 v caps is the best approach. Polk Audio PSW111 Subwoofer Polk Audio PSW111 is designed for use in the home in entry- or mid-level musical and theatrical complexes installed in small rooms. item 4 Polk Audio PSW111 300W 8" Active Bass Powered Subwoofer Speaker w/ RCA Black 4 - Polk Audio PSW111 300W 8" Active Bass Powered Subwoofer Speaker w/ RCA Black. Go figure. Top positive review. Page 2 Polk Audio loudspeakers and subwoofers are capable of playing at extremely high volume levels, which could cause serious or permanent hearing damage. hmm perhaps try for the other side by removing the speaker? Along with its array of loudspeaker products, Polk offers sixteen different subwoofer models that span virtually every application, including wireless and in-wall. Could someone please indicate an acceptable thermal paste to purchase? my board seems to have a strange, but disconnected jumper wire topside, connecting an area marked for a C40 cap between the left 47uF 63V cap and the 50V 47uf one. I normally connect it using the LFE input, but I tried connecting using the the speaker terminals and it seems to be working this way. I liked the small footprint and the sound was nice. The PSW111 Powered Subwoofer delivers powerful, accurate and musical bass from a shockingly small enclosure. I replaced the two 47 µF 63V capacitors, and the hum is gone!Thank you so much for taking the time to research this and post the results! The Polk PSW111 subwoofer is an excellent quality subwoofer in a very small form factor. per my recent blog post I bought one of these: https://www.amazon.com/dp/B07C5LC486/ref=as_sl_pc_tf_til?tag=thehesiod0e-20&linkCode=w00&linkId=251a20fd9aa7303aa984e7126700857e&creativeASIN=B07C5LC486 for testing out caps and it works well, and pretty neat at that :), Really solved. Eh, not sure I want to spend the money. Still no sound or light. Strong, powerful bass inside a low-key subwoofer, Connects easily to any system with pro-grade, unfiltered LFE, line and speaker inputs, Unique design keeps the PSW111 stable, steady and power efficient, even at extreme volume levels. An invalid variant combination has been selected. Does anyone know where I can get a schematic or even better, what might be causing the problem? I also just replaced the two 47uF 63V caps and it solved the problem of the speaker not working using the LFE input. Polk Audio PSW111 300w Powered Subwoofer - $180 (College Station) View larger image. its not glued, just has a gasket and was a tight fit. The PSW111 represents a continuing refinement of the highly regarded PSW Series and a great introduction to visceral home theatre bass performance. Can you tell me if the 2 - 63v polarized 47uF capacitors sit side by side, middle lower left side? Our reviewer recommends it … Should I still be replacing the capacitors?My problem is with the noise all the time when the subwoofer if powered. By using our website, you agree to our use of cookies. The rest were 30 to 50% of their rated values.The Heartbeat was what my friend first complained about until it totally died so replacing all the electrolytic capacitors and FET fixed the problem. Experience the strongest bass you'll ever feel in one of the smallest subwoofers you’ll ever find. Thanks for this post.I replaced the 2 - 47uF/63v polarized capacitors.The sub started working again. The PSW111 packs all the power of Polk Audio technology into just a little over a square foot. 10-inch 100 Watt Compact Powered Subwoofer, 10-inch 200 Watt Compact Powered Subwoofer. by Polk Audio. I ordered the replacement (two items), and they all measure similarly low resistance. How do you know the JFET is defective?I tested it with multimeter, it showed low 5 ohmh between source and drain at all times. I can't see the resistors because most of their numbers are underneath the actual resistor. I recently repaired my friends PSW111 and found this post helpful. Specially-tuned, downward-firing ports produce maximum bass impact and keep the cabinet's front profile as sleek as possible. Great to find this blog!! The Polk Audio PSW111 isn't just a very good compact subwoofer, it's a excellent match with the brand's RM and SurroundBar speaker systems. Seems like I heard small noises coming from it one day when it wasn't even on. In the photo, where is the FET? The FET Q340 on the pre-amp board was shorted, I used a NTE451 FET. I was recently given a 505 that does not work. Wanna add to this post that replacing the Caps with new ones fixed my subwoofer that would work intermediate and would also generate ghost noise even with no input signal.I replaced2 - 47uF/63v polarized capacitors2 - 47uf/50v polarized capacitors (actually I used 47uf/63V. How comes the fun part..you need to remove the screws holding in the large circuit board, however polk covered them in two types of glue. Now replace the capacitors. Absolutely Excellent! I used a desoldering gun to remove the capacitors, however many of the legs were still difficult to remove as the solder tended to stick to the legs. Polk PSW111 Indoor Woofer - 150 W RMS. Unique driver materials, speaker geometry and construction techniques produce clean, crisp sound and effortlessly big bass, especially when you need it most. I changed only the first two 47uf / 63v and it is already working perfectly. No matter what your amplification situation, it’s a breeze to utilize. I recently bought a Polk PSW111 subwoofer with a set of speakers. So far so good (ok it's only day 1) but glad I can still use it without the heartbeat. Especially the two 47uF/63V ones that measured 1 pF. I have a feeling you may only need to replace the 150uF power capacitor. same as above)1 - 100uf/35v polarized capacitor1 - 100uf/20v bi-polar capacitor3 - 4.7uf/35V bi-polar capacitorsI used an ESR and found that the two 47uf/63V were detective.I also found one transistor on the input/control board that was defect. Might just be cheap and wait until I get some extra cash for a different sub. Going to order capacitors. That or you can send me a pic of your board with the resistors highlighted and ill tell you which ones they are. At just a tad over a square foot, this is one of the smallest subwoofers you can buy, and with the combined power of Polk subwoofer technology it's … How are ratings calculated? Since the popping noise was periodic I figured it was probably a capacitor that had gone bad. There are few 8 inch subwoofers on the market that take up less space than this, and they are all either lower quality, or vastly more expensive. Each and every day since then, all Polk products are the result of tight-knit collaboration, teamwork, and our collective passion to make great sound available to as many people as humanly possible. Cookies help us improve your website experience. AU $409.95 +AU $8.95 postage. 8-Inch 300 Watt Compact Powered Subwoofer. Thank you very much. I ripped her open and no bulges on any of the caps from what I can see at the moment. item 5 Polk Audio 5.1 Surround Sound System w/matching Subwoofer 5 - Polk Audio 5.1 Surround Sound System w/matching Subwoofer. i unscrewed the woofer, then leaning it over toward the woofer, the woofer popped out. Or can you circle them on your photo? It requires inventive spirit, hard-earned experience, and intuition. Also, all but the large power supply capacitor (C24) were all out of tolerance. This is a set of 2 brand new electrolytic capacitors rated at 47 uF and 63V with a temp rating of 85c. Ad id: 1807202222024495; Views: 1; Price: $180.00. I am having the same problem as everyone else.I've never changed a capacitor...I have no problem getting in but is it easy to solder? Thanks for this, my psw111 was out of warranty, $2 of parts from my local store, and 30 mins later no more heart beat... My local store didn't have 47uF 63v so I used 100uF 63v instead. I don't wanna give my email out on this random blog. Summary of Contents for Polk Audio PSW111. Which makes me wondering is JFET is the failing part...I started looking at the JFET since the capacitors measure within 20% below the nominal. The rest were 30 to 50% of their rated values. Can see my latest post where I used it. AU $204.50 3 bids 21h 2m. item 6 POLK AUDIO … I used a pair of pliers to kind of chop them off with a knife to remove the glue from inside the screw heads. i need to know the resistor on R57 and both on R56 on the amp board, mines are blown and cant read the writing on them.best regards. Since I had purchased the, sub-woofer about 3 years ago the warranty. Write a review. The Polk Audio PSW111 Powered Subwoofer represents pure sophistication in powered subwoofers. Polk Audio PSW111 8" Powered Subwoofer - Power Port Technology | Up to 300 Watt Amp | Big Bass in Compact Size | Easy Setup with Home Theater Systems Black. We have 2 Polk Audio PSW111 manuals available for free PDF download: Owner's Manual, Brochure & Specs . Aluminum Electrolytic Capacitors - Radial Leaded 63volt 47uF 6X11.2mm LS:5mm Ammo Crimpwww.mouser.com/ProductDetail/Panasonic/EEU-FR1J470B/?qs=sGAEpiMZZMtZ1n0r9vR22WPtSjuqjALiCJqiTmsA8Ko%3D, https://www.digikey.com/product-detail/en/EEU-EB1J470SB/P19619CT-ND/6109517?utm_medium=email&utm_source=oce&utm_campaign=2533_OCE19RT&utm_content=productdetail_US&utm_cid=898613&so=59334401&mkt_tok=eyJpIjoiTURZeE1UQXlaV1kxTWpNdyIsInQiOiJ4Z1RpXC9SdzViTDF6dmhoREE4alowdFlvbXkrK3FlUlZPQnY2SDRBclB3Mjdmc05wdzdEaFRlejFuTG9JYkUrbzdxS1BhUDZuTjVoNThUYURHbWNmMmlyVnc3cWY0U2lHN3ZkWXFlUjlnc0ZGSDE0OE5EZUxcLzZIT2xLY1wvS0Q3WCJ9, Full details with links for parts here: https://mrfxr.com/polk-subwoofer/. Manuals and User Guides for Polk Audio PSW111. I have this subwoofer, and I had this same noise symptom!I just recapped all electrolytic capacitors for the same value from Nichicon, and ..... another problem arose when connecting the subwoofer.It emits a "pop ... pop .... pop", and the led flashes at each pop, regardless of the position of the "Standby, Auto or On" switch!Does anyone have any idea what else could be going on?Regards!Rdorigo, Hi Alex,Thanks for taking time to create this blog.I have the PSW111 with the heartbeat problem. Great post! Want to say thanks to OP, same issue. After getting it home and plugging it in to the wall outlet and connecting it via LFE, I noticed that the LED on the back plate of the PSW111 did not turn on and no sound came out. Polk Audio PSW111 Owner's Manual (17 pages) Polk Audio Powered Subwoofer Owner's Manual. I don't want to destroy the finish while getting to a relatively easy repair.ThanksDoug. However, not very cleanly.I now have a very quick heartbeat as soon as power is applied.
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