mackie cr3 switch repair mackie cr3 switch repair

The input is from my computer going into the Rca plugs in the back of my active speaker. /Users/christianvalera/Documents/Manuel notice mode demploi/Mackie CR3 CR4/Z3 Z4 1.jpg I picked up a set of these from a wholesale liquidator auction site and had the same issue. Solution: cut the ping 5 with small cutting pliers. Mackie CR3-X Specs. May 21, 2018 by I used a Hakko FX-888D soldering station and silicone-tipped solder sucker. TDA7265 is the name of the chip and it's the 3rd visible pin but it's actually the 5th pin. I like the sound, and their pocket size. First remove all the screws around the outside on the rear of the speaker. So these speakers broke after about 2.5 years of use. I did my fix slightly different than how you outlined yours by just bridging the solder points in the parallel "right" configuration with bare stranded wire. Only $10 but I wish Id known about all the problems these things have. r/Audio is a place for questions relating to all types of audio. But is this some temporarily solution, like are my mackies soon ready to retire? As spraying Contact Cleaner only fixes the issue for a month or so for me, I went in with a Multimeter, and figured out how to just bypass the switch altogether. The better your problem and question is described, the easier it is for other Mackie owners to provide you with a good answer. do not connect red and blue). Add to Cart. estn en eBay Compara precios y caractersticas de productos nuevos y usados Muchos artculos con envo gratis! CR3-X monitors have 1/4, 1/8 and RCA inputs for added versatility. The design of this thing is flawed. As I found out, after some time and due to high heat, this capacitor starts to leak current so Pin5 gets overvoltaged in Play mode and subsequently mutes the sound. $13.80. Here is our full archive of resources for past Mackie products. There was a piece of audio cable stuck in my Red (+) connector, that I originally thought would resolve the issue. Repair Mackie CR4 speaker select switch. Item usually ships in 11-20 Business Days. Unplug all the cords. Take a look at my Badcaps topic about Mackie CR4s and their amplifier. Don't Let This Active Speaker's Small Size Fool You!. The connections on the back will work with plenty of setups, and a Bluetooth version is . My switch started acting up very soon after I purchased mine, and now its huge pain to get both speakers to play. Youll need to supply your own wire for this. There is only left in stock. Mackie products have been making music across a wide-range of applications since our founding in Woodinville, WA in 1988. Jul 13, 2022 Check Price. Turn off your powered speaker, Unplug it, and remove the 8 short Phillips head screws on the back. This is the part where you decide if you want the powered speaker to always be on the left or right side of your desk. Flexible rear panel inputs include balanced 1/4" TRS inputs as well as RCA. When the volume exceeds 120 decibels, direct damage can even occur. Also, for me I had to really pull on the back as it was tough to pull out after I took out all screws, without really having something to grip on to. From the outside the only problem seems to be the speaker. Jamie Persona Check Price at Amazon: 5: WavePad Free Audio Editor - Create Music and Sound Tracks with Audio Editing Tools and Effects. Create an account to follow your favorite communities and start taking part in conversations. But there's a grounded sound that came up. VISIT OUR EBAY STORE Audio-Technica AT-LP60X Bluetooth Turntable (Red) Bundle with 314225424882 You may find the answer to your question in the FAQs about the Mackie CR3 below. For me, I dabble in electronics so can take this kind for repair on. So, you can also remove this capacitor and it will no longer pose a leaking current problem, if you dont mind having that faint pop sound upon plugging/unplaging your headphones. We wouldnt limit you to just one input type! Mine completely failed around October 2019. Feb 7, 2021. Aug 16, 2018 by /Users/christianvalera/Documents/Manuel notice mode demploi/Mackie CR3 CR4/Mackie-CR3-Schematic.pdf when a girl says she's a hot mess. On mine I say no sound but if I crank it all the way to max volume and put my ear up to the speaker I can just barely hear music. very low freq hum on power on: Runereader It gets really hot during operation, and stuff just breaks: Had the same issue, caused by the heat around Z4 diode. . Then the sound stopping became more frequent until being completely mute. But it still remained, until I plugged the aux cable into both the headphone jack and the aux jack, which resulted in a crackle of the powered speaker when I attempted to replug the cable back into my computer to assess the outcome which was a clear sign of "YES". Call Our Sales Pros for alternatives, HF Driver Assembly for SRM450, C300Z, SR1521Z. Mackie CR3-XBT 3-Inch Multimedia Monitors with BluetoothThe Mackie CR3-XBT 3-inch Multimedia Monitors are designed to meet the needs of modern musicians, content creators, video production, and beyond. AUDIO-TECHNICA AT-LP60X BLUETOOTH Turntable Red Bundle with Bluetooth Monitors - $422.38. Mackie CY-2041520 Replacement Handle for SRM-550 and SRM-650. Foot for these Mackie speakers: SA1520 SA1521 SR1500 SR1530 Thump15 TH15A TH12A Black fader cap with white line for the Mackie VLZ4 Series mixer. * Second, change Z3 and/or Z4 (12v Zener) (It is the problem when after cutting pin 5 you ear a big sound mixed with the music). Learn More, Free -Day Shipping Im not sure what a pin is or exactly what to cut and Im about to toss them anyway, but figured Id give this a go. Experience detailed studio quality sound through a compact, yet powerful, 3 . Don't miss out on this item! but the strands aren't touching the circuit board that is insulated anyway so im fairly confident its fine. Reply. Those fixes will significantly reduce the heat produced, which should help with longevity. Harga: Mackie CR3X Multimedia Monitors: Rp1.880.000: Harga: Speaker Stand / Tatakan Mackie CR3X CR-3X CR 3 X Studio Monitor: Rp195.000: Harga: MACKIE CR 3X BT / CR3 XBT / CR3X BT - POWERED MONITORS WITH BLUETOOTH: Rp2.350.000: Harga: Mackie CR3X Artic White Limited Edition Speaker Monitor Recording: Rp2.200.000: Harga: Speaker Multimedia Monitor Mackie CR3X CR3-X 50W Stereo Sound Options. Mackie CR3-X monitors combine a silk dome tweeter and a 3" polypropylene woofer for clean, articulate sound with plenty of low-end extension, even in small rooms. No more sound : I do get sound from the headphones connected to the front of the main speaker though. With it I could test that the auxiliary input (front panel) is working fine too. At only $100/pair, they are one of the best-selling "budget" monitor speakers. File. The speaker still seemed to work fine even though the caps were bad, but I didn't want to risk other failing components potentially causing a fire hazard. My crappy Mackie CR3 speakers died after warranty. But if you have a larger table, this is perfect . In conclusion, the Mackie CR3 Speakers are a great buy if you're on a budget but need high quality and accurate audio for under 100. @theroc. Call our Sales Pros for more information. Just in case anyone stumbles upon this later, I messaged Mackie and they sent a replacement set even though I was out of warranty! Flexible input options that include 1/4", 1/8" and RCA. You should be able to lift the plate out once these are removed. Then stopped working, and retrying it didn't help :(. For the Powered speaker on the Left, cross the top and bottom connections in that group of 4. Wrong contact in Powered speaker position : unsolder the selector and short as on picture Bought some of these second hand at a thrift store. Dolby Atmos is a technology that ensures that the sound is reflected from the ceiling to where you are listening. * First check and clean the headphone plug, you could cut pin 5 of the TDA7265 Alternatives: here are some alternative solutions that did not work for me but I read that worked for some. I tried cutting the mute pin but this just didnt work for me. The headphone thing didn't work on mine but what did work was spraying oxide clean into the speaker selector and flicking the switch 10 times. Nov 13, 2019 by Solder two short wires to bridge the connections to hard wire your powered speaker to either Right or Left as desired. I'll probably modify the powered speaker to leave the electronics outside the speaker box so the heat can better dissipate. Jun 27, 2022 And strangely, when I connect a pair of headphones to the Aux out port in front of the active monitor, I can hear well through the headphones. No one likes having to dig around for monitor controls. Convenient front-panel headphone out and volume control make daily use easy. 12 AC Acapter for 802VLZ4, 402VLZ4, PROFX4 (Version 2), Main Power Amp and Power Supply PCB for DLM12, High demand backorder 30+ days. Sound very bad : 2 big 4700 uF capacitors to be changed (good idea to change them every two or three if you leave fallaways on your CR3 or CR4) This comment has been removed by the author. I got a pair of CR3's as part of my first home studio setup. :-) More On Order. How to open it? We sell genuine Mackie pro audio replacement parts and offer international shipping and professional service. Call Us for your best package Michael Winkler, Mackie CR3 CR4 L/R Speaker Selector Bypass. Click now to browse Online sales cheap of experts 600D Snowmachine Snowmobile Cover Ski-Doo MXZX MXZ X 800 2001-2004 2005 satisfaction guarantee infodesaku.com, C $239.18 Find many great new & used options and get the best deals for 600D Snowmachine Snowmobile Cover Ski-Doo MXZX MXZ . These speakers have a convenience feature in the form of a powered speaker position select switch. Has anyone seen this issue? You could leave the audio cords connected, but you really want to unplug the power cord for safety. The CR3 is a set of Mackie speakers that provide value for your money, since these affordable studio monitors also double as multimedia speakers. Regretfully Im just a non-techie designer, so As unfortunately you are not a neighbour, it was simpler to buy new .not a green solution I know !!!! Problem: No sound coming out of the speakers. that seems to be everyones problem with this product. The contact points we need to work on are the bottom 4 in the cluster of 6 directly left of the switch on the back. I am trying to figure this out as well, as it appears getting a replacement is not an option. darren pearce. Rubycon YXF 50V1uF) and the sound will play again and you will still have the Mute functionality upon plugging the headphones (if you havent cut Pin5, that is). mackie cr3 switch repair. Convenient front panel headphone out and volume control make daily use easy. Mackie CR3-X Creative Reference Series 3" Multimedia Studio Monitors (Pair) w/Pro Tools First DAW. The root cause seems to be the amplifier chip TDA7265. 4. EFormance Engineering. I am trying to repair a pair of Mackie CR3 active speakers which seem to mute shortly after powering up. 84013 Even after I fixed it I was hearing some cracking noise in some frequencies. CR3-X studio monitors deliver clean, accurate sound for bedroom studios and gaming setups alike. Toggle the speaker placement switch to change which side of the desk you want the volume knob on. The best detailed answer !!! We are talking about just a few millimeters between each of those contact points! English. You can try rapidly switching the L/R speaker select switch and also plugging and unplugging rapidly the headphone or aux out (can't remember which). Do make sure your wires lay pretty flat to the board so it won't get in the way when you slide it back in to the speaker casing. Do you have a question about the Mackie CR3 or do you need help? I expected them to last longer than that, so I'm pretty disappointed. Once removed, you can pull out the electronics from the casing pretty easily. The hookup diagrams show some typical setups, while the remaining sections provide details of the CR3-XBT, CR4-XBT, CR5-XBT and CR8-XBT monitors. This manual comes under the category Speakers and has been rated by 1 people with an average of a 5.2. The 12 v / 20 v area of the circuit board and the components there get cooked. Dont let the compact size fool you. How to Use This Manual: After this introduction, a getting started guide will help you get things set up fast. Mackie CR3. FOR SALE! Listening through the headphones jack automatically turns off output from the monitorsno need to twist knobs or pull faders. I used the cap trick when clients had less-than-stellar amps installed in their cars. Provide a clear and comprehensive description of the problem and your question. All I have to do know is find why there is a fairly loud low pitch Hum coming from both speakers when power supply is on but front on/off volume control is off .. any ideas ??? 5. There are no screws showing and I don't want to go ripping on the bezel Hi,i need it to. This fix makes your selection of Left or Right powered speaker permanent, but apart from the Aux in on the front, it is easy to just plug in your audio cables backwards to have the audio come out of the correct speakers if you want to change your setup later. More to explore : Any idea how to accomplish the pin clip? Las mejores ofertas para Par de altavoces de computadora BOSE MEDIAMATE *con fuente de alimentacin* Probado! I had this issue with my 5 year old CR3s, (the odd thing being the slave speaker worked and the powered didnt) stumbled on this forum and indeed, exercising the headphone port with a 1/8 headphone plug in and out worked like a charm! Reply. This switch flips audio left/right output so you can put the . Diaphragm for 25726 high frequency driver used in Mackie SRM450V2 speaker. lol, Apr 13, 2022 by High frequency driver for these Mackie loudspeakers: Thump15 Thump15A Thump12 Thump12A Thump12BST Thump15BST SRM450v3 SRM350v3. Front-facing headphone output jack. for orders $199 and up. On the other hand, Mackie CR4-X measures 8.8" H x 6.1" W x 7.3" D. It is slightly larger and takes some space on the table. Everything else works as intended it seems. 8.Turn the front panel volume control clockwise until the monitor "clicks" on and the ring surrounding the volume knob illuminates. Oct 2, 2019 by Mackie CR3 review. I get sound from the speakers now, but they don't mute when I plug in headphones, which is fine by me. Color: Black, Input Connector: 1/4" TRS, 1/8" TRS, RCA, Power Type: Active Monitors, Promotion Flag: overstock . * Pin 5 is an input of the TDA7635, so no need to change it if you want to fully repair CR3, CR4 ) document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. It was way easier and seems to be working well. If you want the simple solution. 3. @deadlocked, Scout Langley 7. See the darkened patch in the image of the back of the circuit board above?https://fillwithcoolblogname.blogspot.com/2022/02/mackie-cr4-repair.htmlhttps://www.mikrocontroller.net/articles/Mackie_Creative_Reference_CR3_CR4_Reparatur_Repair. You can clip one of the pins on the amp IC. Yes, the manual of the Mackie CR3 is available in English . Shortly after the warranty was up (how lucky,) they started cutting out unless I could find the perfect position of the "powered speaker" switch on the backplate. Official Owners Manual for CR3/CR4 series, Frequency sweep from 20Hz to 22Khz sound test, Mackie Creative Reference CR3 CR4 Reparatur Repair, Tutorial Mackie CR3 CR4 Speakers Audio only through Headphone DIY repair by jkhan337, Vypyr VIP 2 amplifier clean patch by-pass step by step, 1000 dias do assassinato de Marielle Franco. When products are Built-Like-a-Tank, they tend to last long past being discontinued. Reply, Just wanted to say thank you for creating this. Benjamin Fabert. Then I work the card around the whole length of the joint and added another card to make a thicker wedge and worked that around. Power Switch. Back to home page Return to top. It should not be too hard to just bypass it, and just have exclusively L/R speakers. I did this. Notify me of follow-up comments by email. How do I connect my speakers to my LG Smart TV. @whiffed. I thought about buying new speakers but decided to try to fix them instead. By Tim Gideon. (I bought mine second hand). Price. This makes it possible to create a 5.1 effect with only 1 speaker. A little care is required, as there is cabling connecting it to the speaker front, but there is enough slack that you don't need to worry about disconnecting for this fix. CR3-XBT 3 in. Yes, bluetooth is a universal method that allows different devices equipped with bluetooth to connect to each other. These speakers provide really good sound for their price, and it seems they accomplished that by using some cheap components. Buy Mackie CR3-X 3-Inch Creative Reference Multimedia Professional Studio Monitors - Pair & Audio-Technica AT2020 Cardioid Condenser Studio XLR Microphone, Ideal for Project/Home Studio Applications For Rs. Also fwiw - on the MUTE issue re the mute pin on the TDA7265: It has been noted that inside that chip the mute function also performs a voltage safety check; so ideally you shouldn't fix the mute issue by simply cutting that pin. I had the same issue. This struck me as the wrong approach to bypass a broken switch. they did for me and I was way out of warranty. Cutting this pin worked a treat to solve my problem. 12 minute read. Free Shipping on thousands of items! Flexible inputs include balanced 1/4 in. If the mute failure isn't fixed by cleaning the headphone contact; then you probably have failing caps and diodes. Powered Speaker Position Select Switch. Step 1 L/R Speaker Selector. Mark giddings. virgo supercluster. I then replaced the two regulator zenier diodes, Z3 & Z4. Not have any screws thanks, The front cover can sometimes, if you've got strong finger nails, be pulled off the box by hand. These speakers seem doomed to fail after a few years, according to what I've read. placed the headphone cord in, powered off and on as i removed the headphone cable slowly, the passive speaker crackled back on. Thanks for the tip! you don't have to cut the pin (messy), just cut the jumper in the red box: David Krug The function of this cap is to provide smooth transition between Play and Mute, i. e. when you plug in or out your headphones you wont hear the pop sound. There are 'proper' fixes out on the internet that involve bypassing the original power supply regulation section with LM-series voltage regulators. Speakers Mackie CR-X Series Owner's Manual. Do you have a question about the Mackie and the answer is not in the manual? Mackie CR3-XBT 3in Multimedia Monitors with Bluetooth (Pair)CR3-XBT3" POWERED MONITORS WITH BLUETOOTHEveryone deserves professional sound. Unfortunately I get no sound from the speakers. Yes I mean that switch. $98.86. Multimedia monitors w/ bluetooth (16 pages), Multimedia monitors w/ bluetooth (17 pages), Creative reference multimedia monitors (16 pages), Multimedia monitors w/ bluetooth (10 pages), Active sound reinforcement speaker (20 pages), Active sound reinforcement speaker (21 pages), High resolution active studio monitor (20 pages), Mackie high resolution active studio monitor owner's manual (16 pages), High-performance powered loudspeaker (35 pages), Manual will be automatically added to "My Manuals", Speakers Mackie Creative Reference CR3 Quick Start Manual, Speakers Mackie CR-XBT Series Owner's Manual, Speakers Mackie CR-X Series Owner's Manual, Speakers Mackie CR-X Series Quick Start Manual, Speakers Mackie CR-X BT Series Quick Start Manual, Speakers Mackie MACKIE SRM350 V2 User Manual, Speakers Mackie SRM210 V-Class Owner's Manual, Page 8: Powered Speaker Position Select Switch, Page 12: Appendix B: Technical Information. Choose which side of your desk gets the volume knob with CR3's convenient speaker placement switch; 76. Multimedia monitors w/ bluetooth (10 pages) Speakers Mackie MACKIE SRM350 V2 User Manual. Here's a quick rundown of the features: Helps provide feedback on audio recordings. Find low everyday prices and buy online for delivery or in-store pick-up Speakers should not fail in only three years. You typically don't have to change the whole chip and people that do still don't get them working and end up doing this anyway. FREE SHIPPING on most orders over $50! Reply. The matching subwoofer is driven by a 200W amplifier and 8 high-output woofer for a deep low-end punch. Aug 13, 2018 by It worked. Mackie CR3-XBT 3-Inch Multimedia Monitors with Bluetooth (Pair) Bundle with Knox Gear Studio Monitor Isolation Pads (Suitable for 3 or 4-Inch Monitors) & 1/4" to 1/4" TRS Cables (4 Items) Mackie CR3-X 3-Inch Creative Reference Multimedia Monitors Bundle with Pro Tools First DAW Music Editing Software, Wireless Bluetooth Receiver and Dual 1/4 . Tight space to work on but worked perfectly. I love how they work GREAT with entertainment centers or even plugged into a computer. By using this site, you agree to our Privacy Policy. MusicRadar. There's two cables, one for the volume control knob and one for the headphone jack, that you will need to unhook while sliding the electronics out of the speaker. Mackie's CR3-X speakers are affordable, barebones studio monitors with a focus on accurate audio performance. The switch had been bumped and when I operated it a few times the clear sound returned. Music producers, audio engineers, and DJs looking for high-quality studio monitors will be impressed with the black Mackie CR3-X, a pair of Creative Reference Series 3" multimedia monitors offering a compact solution for quality audio playback in home studios and gaming setups. (This was before they out-and-out failed to permanent mute mode even after replacing the amp chip). This is my first guide, and I didnt plan on making it when I did the fix, so sorry about the lack of photos and details. But ask me to do any plumbing repair and it's a disaster! Treat yourself to some extra bass. Ask your question here. Be careful as there are cables connected inside. For the Powered speaker on the right, connect the top and bottom connections in that group of 4. I trimmed it back with cutters so I could reach the switch housing with my multitool and wiggle it loose. A bit neater than doing it with larger loops of insulated wire.possibly a little more unsafe? Yeah, my pair is 3.5 years old and they STILL sent me a new pair. as in a scratchy potentiometer? Thanks for this fix. Apr 10, 2022 by /Users/christianvalera/Documents/Manuel notice mode demploi/Mackie CR3 CR4/Mackie-CR4-Schematic.pdf Can bluetooth devices of different brands be connected to each other? If you change the switch and the same speaker doesn't work then the problem is either the speaker or the amp . Add jumpers where the red lines indicate for left-powered, blue for right-powered (you must choose. 15% Off: Mackie CR3 3" Woofer Creative Reference Multimedia Monitors, Pair + Software Bundle MFR: CR3 (PAIR). That could be the PC or the cable. Quickly removing and inserting and inserting the auxiliary jack. Posted: Nov 12, 2018. Can't find the answer to your question in the manual? I had to do the switch solder fix and then months later, began hearing crackling that sounded like tweeter distortion. The Mackie CR3-XBT 3-inch Multimedia Monitors are designed to meet the needs of modern musicians, content creators, video production, and beyond. Speaker placement switchchoose which side of your desk gets the volume knob. CR3-X Creative Multimedia Reference Monitors are designed for content creators, producers, musicians, video editors and anyone looking to enjoy their favorite tunes. Look up dead mackie cr3. A magnifying glass light would be handy. You typically don't have to change the whole chip and p. I got it in a bundle deal with some audio gear I bought about three years ago. Didnt even ask for the old pair. Mackie CR3-X studio monitors are unrivaled in sound quality and style. Discontinued products. Goolge Hatter. Ask your question here. Sep 1, 2018. Put your finger into the ventilation hole and pull off the back panel. Mackie CR3-X 3" Desktop Studio Monitor Speakers w Free Headphones & Microphone. Working now. Buy now & save $20. Flexible rear panel inputs include balanced 1/4" TRS, 1/8" Stereo, and RCA. 2023 Full Compass Systems, LTD - 9770 Silicon Prairie Parkway, Madison, WI 53593 All rights reserved. thanks for this i have a problem with the powered speaker position select switch. My crappy Mackie CR3 speakers died after warranty. Speaker Handle for SRM450 V1, SRM450 V2, SRM450 V3, Power Supply and Amp PCB Assembly for PPM1008, 5K Mono Channel Fader for ONYX-3280 and 24.4. We forward in this generation, Triumphantly @reeltimepr46278, Plug in and remove your headphones a few times really fast it sounds stupid but it will work. It has a compact size which makes it a suitable choice for DJs with a small setup and those who prefer quality sound over high volume. caganarslan, no need to detach the board from the back panelafter you identified the resistor from upper side the board go to copper side and then desolder it from there..my suggestion change it with bigger wattage (at least 1/2w )..good luck, Jan 2, 2020 by . DeOxIt works great. Replacement Handle for SRM-550 and SRM-650, Replacement Top Handle for TH-15A and Thump15, Digital Converters, Transcoding, Sync, Clocks, Hearing Enhancement, Translation, Tour Guide, Recording (Audio) Interfaces, Digital Workstations, Switchers, Routers, Combiners, Source Selectors, If you cannot access the information on this website and need assistance in doing so, please call. Once removed, you can pull out the electronics from the casing pretty easily. This switch flips audio left/right output so you can put the powered speaker (with volume knob and headphone jack) on whichever side you prefer without flipping the stereo input cable around. Check Price at Amazon: 6: Blink : Check Price at Amazon: 7: Elgato Stream Deck MK.2 - Studio Controller, 15 macro . The box is covered with a matte vinyl coating that looks smart and appealing. . In the beginning the sound would come and go. The CR3-X goes for a punchy design. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. We ship to the USA!. You also get a hi-Z switch on each channel for DI-ing your 255987019508 Channel assign mute switch for these Mackie mixing consoles: 24X8 CFX MKI Series CFX MKII Series Top black handle for the Mackie TH-15A and Thump15 loudspeakers. try messaging them, they might replace them. High-quality cables are included in the box to get you up and running quickly. Back in January 2016 I got a pair of Mackie CR4 speakers. The amp in the back of the speaker has more than enough power so that should not be a concern. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Conclusion: Dont buy these speakers. NOTE that I myself am not an electronic circut expert; I am here consolidating a bunch of research I've found across the internet. Works fine, just lost the ability to select between L & R but this isn't a big deal to me. NAN012 amplifier assembly for Mackie DLM12 loudspeaker. And then I used my finger nails.Be aware these speakers have a design that often gives them a very short lifespan. It simply means the speakers wont mute when you plug your headphones into the jack. All parts sales are final, no returns on spare part sales. Active Monitors . The most common problem is capacitor C39 which goes bad due to a rude and overheating 12V regulation curcuit.