Pioneer sx 1050 problems. 32K subscribers 25 Hi Merlynski.
Pioneer sx 1050 problems PIONEER+SX-1050-Service+Manual (1) - Free download as PDF File (. The Pioneer sx-1050 no voltage at output caps problem lopezluna Dec 2, 2021 pioneer receiver pioneer sx-1050 pioneer sx-1050 help sx-1050 low output Prev 1 2 3 4 5 6 7 Next Similar threads pioneer sx-1050 skarma Aug 10, 2014 Pioneer Audio Replies 3 Views 520 Aug 12, 2014 CohibaJoe SA-1050 Protection Issue mustang1102 Jul 1, 2020 I’m a newby and will have several questions about recapping my Pioneer sx 1050. This is should be Had my grandfather's Pioneer SX1050 restored Discussion in ' Audio Hardware ' started by obisolo, Aug 9, 2020. The power supply assembly in the Pioneer SX On my SX 950 which is similar the problem of over sensitive protection tripping was due to one of the power supply negative voltages being way out of regulation. My only post was to list my Pioneer gear. Pioneer SX-1050 120wpc I recently picked up a SX-1050 that I'm having difficulty with. I have repaired dozens of receivers with issues. Has good bias Posting because I did not see this remediation when I did a quick search on the problem with my Pioneer SX-1050 tuner section. I have been lurking around here since 7/1/2007. Now SX-5580? what are we dealing with? I realize you may not understand how protection circuits work nor understand these old amps I am working on a SX-1050 for a friend. I recently purchased a near mint sx 1050. (She's in extremely good Pioneer SX-1050 - summary of work. Upon initial diagnosis powering up on the DB tester, the protection relay was not engaging. To clean it properly, drop the circuit board is resides on (don't mess w/ board wiring - it will come out of the chassis enough I have a beautiful 1976 Pioneer SX-1050 receiver that I will keep and use until my dying day, so need need to try and persuade me otherwise Okay, that said, the one area of Bogden777 B S Pioneer SX-1050 Random Protection sruchris Jan 20, 2025 Pioneer Audio Replies 19 Views 763 Jul 30, 2025 A bit of a warning on the SX-1050 protection circuit description from the service manuals that I've examined. I got it home and did some basic testing. I Bought this Pioneer SX-1050 for the bargain price of $10! took it home and had loud crackling from the right channel. After a few weeks, I got tired of the occasional channel cutting out, scratching from the volume pot and Hi,total noob here. Previous owner said they heard speaker (s) pop saw smoke before unit went dead. Everything seems to work except the the following issues. First I have removed power transistors cleaned and greased. The receiver is in great condi Pioneer SX 1050 Stereo Receiver Repair/Recap Part 2 - Recapping the Amp Board and More Issues MillerVintageHifi 4. I have done image searches for schematics but some of them So my 1050 died & decided to change out fuses. pdf) or view presentation slides online. I would be highly grateful for anyone's help before I make a mistake and smoke thousands of I am new to the forums and looking to learn more about receivers and to repair my newly acquired Pioneer SX-1050. I have an Audio Technica AT-LP120 and DALI Zensor 3 speakers. The previous owner told me of a problem he was having with the FM tuner section. Very low volume output and distorted. I just had it serviced at Voorslag Audio in Providence completed on 11/3. It plays fine otherwise. I've been trying to solve it but without succes so far. Can the kind and super experienced folks on AK please review my list of parts I've ordered for my SX-1050 rebuild project? MTF/TSD71 and MattSD have provided me with So based on this, I believe the problem is definitely with the pre-amp section of the SX-1050. Old electrolytic capacitors and heat stressed/troublesome transistors were replaced. Tested it with FM: No output from right channel. You don't have to worry Pioneer SX-1050 Output Transistor Help Bradley J May 30, 2022 pioneer1050 repair repair help I received an sx-1050 with lots of dust. Plus the right channel (amp board as you face the receiver from the front) has 48mV between pins 14 and 16. 32K subscribers 25 Hi Merlynski. The vintage audio hobby requires a dogged resolve when searching for a rare audio gem like the Pioneer SX Pioneer SX-535 Crackle in right channel I found my fathers SX-535 sitting in his basement (along with a Dual 1228) and he said I could have it. Last month I aquired another pioneer sx-1050 all original and in pretty Lately I had a problem with a distorting left channel on my sx-1050. Is it worth it? Will it cover my Audio Physic Virgos? Its rated Either use the schematic, or find a sx-1050 power supply troubleshooting thread (the legndary steve_1050 thread comes to mind) that has the regulated voltages and pins what speakers should i buy for my vintage pioneer SX 1050? Mission 770 or dynaudio heritage special or KLH Model5? and what A/D Jul 2, 2010 day67 D pioneer sx-1050 or sx-1080 gargoyle Mar 25, 2008 Pioneer Audio Replies 15 Views 3K Apr 5, 2008 Here, we finish replacing capacitors, replace the speaker switch, repair and restore the cabinet and finish all the repair issues with the preamp and tuner. I've had a pair of cerwin vega e-712 speakers for maybe 5 years and have Hi. page. Problem: When audio is playing at a . When the protect relay closes, there is a pop from the speakers. It was my first serious audio purchase and set me back around $3000 when adjusted for inflation to today’s dolla Pioneer SX-1050 AM/FM Stereo Receiver 1976-1978DescriptionHigh sensitivity, outstanding circuit design in a new AM/FM receiver. Looks like this part was the culprit of the smoke. I need some help troubleshooting a non-working sx-1050. Changed out 250 V & it powered up but began smoking. It's pristine inside but the parts are original, so I This is rather embarrassing. I proceeded to set the DC offset and Bias to spec, the On my SX 950 which is similar the problem of over sensitive protection tripping was due to one of the power supply negative voltages being way out of regulation. I am not getting the second relay to click. The tech tells me that the if I can't find originals as I have a Pioneer SX 1050 in working condition with one minor problem on FM. Now I have too much voltage on pin 4 which you use to Similar threads Pioneer SX-1050 Phono Section (Volume Question) gener8tr Mar 6, 2007 Pioneer Audio Replies 16 Views 3K Mar 9, 2007 gener8tr Hello everyone! I am new to the forums and looking to learn more about receivers and to repair my newly acquired Pioneer SX-1050. When tuned to station with Ok, my Pioneer SX-1050 needs a deoxit treament on the volume knob and she will be a right as rain. This unit is in excellent working condition. Receiver would not come out of You'll need to figure out whether you are over driving your woofers excursion limits or if you are sending your amp into clipping or a combination of both. I tested all t03 Pioneer SX-1050: worth repairing? My Pioneer SX-1050 will cost about $350 to repair; one of the channels is shot. IF the following issue, or something like it A Vintage Vibe review of Pioneer's SX-650, SX-850, SX-1050, & SX-1010 receivers! *Part 1 of 2*Edited by VideoGuru:https://videoguru. link/Best Hi,total noob here. My brain does not understand the internal workings of the Pioneer or the Bose EQ. It Pioneer SX 1050 relay start up problem. Watching the output on a scope, both sides take Jul 2, 2011 supergilson S Pioneer SX-1050 DC balance and Idle current advice dukeofurl Jul 2, 2021 Pioneer Audio Replies 32 Views 2K Aug 22, 2022 For sale is Vintage Pioneer SX-1050 Monster stereo receiver, unit been serviced and recapped, only tuner section is original, everything else has been recapped, it’s been Jan 27, 2013 tsd71 D Pioneer SX-1280 Problem with Power Protection Board DraKnight13 Mar 24, 2020 Pioneer Audio 2 Replies 29 Views 2K Mar 27, 2020 Re: Pioneer SX-1050 by SeniorSteve » Fri Sep 17, 2021 1:02 am I'm not sure if there is a "kit" but if you have the service manual you have what you need. Have a sx-1050 that sounds great until i turn volume up over 1/3 than protection relay doesnt click on but it will chatter all voltages on every board are perfect. Everything works except in FM, the sound is slight noisy /scratchy. Initially, he took it to his audio specialist because one channel wouldn’t work but his guy refused to work on it because “there are too Manuals and User Guides for Pioneer SX-1050. I own a Pioneer SX-1050 My SX-1050 has a quiet crackling/static noise in both channels, regardless of input or volume setting. I have rebuilt around 50 Pioneer SX-1050's, and have never had reason to check pin out voltages from the Power Amp board to the output Pioneer sx-1050 no voltage at output caps problem lopezluna Dec 2, 2021 pioneer receiver pioneer sx-1050 pioneer sx-1050 help sx-1050 low output Prev 1 2 3 4 7 Next A Pioneer SX-1050 stereo receiver repair and restoration video. It will work fine sometimes, sometimes the left channel cuts out, sometimes the left channel has a growl like you get putting your finger on the hot end of the volume control. Unfortunately I had to sell the sx-1050 receiver that you helped me troubleshoot and repair. We have 1 Pioneer SX-1050 manual available for free PDF download: Service Manual Hello Pioneer guru's, Been lurking about these forums for a couple of months, and I am amazed by the wealth of knowledge I've found here. I love this thing, however the sound cuts out randomly for a Hi everyone. I own a Pioneer SX-1050 vintage amp and the previous owner drilled 3 holes in the Similar threads Pioneer sx-1050 buzzing the dude Mar 29, 2011 Pioneer Audio Replies 16 Views 3K Apr 7, 2011 View and Download Pioneer SX1050 instruction manual online. Fiddled I just finished working on an SX-1050 and the last thing I did was work on the Power Amp board and swapping the filter capacitors. SX-1050 stereo receiver pdf manual download. Pioneer SX-1050 had a dead channel Hello to all the enthusiasts out there. Both I just set up my Pioneer s-1050 along with the Technics turntable from my father's basement after 20 years in storage. I just purchased a beautiful pioneer sx-1050 receiver and when I received it I plugged it in and the sound was terrible. I've never had to deal with this particular protection circuit and am Pioneer sx-1050 no voltage at output caps problem lopezluna Dec 2, 2021 pioneer receiver pioneer sx-1050 pioneer sx-1050 help sx-1050 low output Prev 1 2 3 4 5 6 7 Next Pioneer SX-780 Left Channel Distortion - STK0050 Problems? DonnieBoy Sep 5, 2025 2 3 Replies 57 Views 870 Yesterday at 8:19 PM Well today is a sad day as I was adjusting the DC Balance Adjustment described in the SX-1050 service manual, My alligator clip moved and shorted across pins 18 and 17 View and Download Pioneer SX-1050 service manual online. Hello, I have a very specific problem and I don't know where to turn anymore, so I'll try you. Upon visual inspection of I want some advice on where to start with a new pioneer sx-1050 I've just purchased. When I turned it on (on DBT) there was Our PIONEER SX1050 Service Manual provides the important servicing information and operating instructions you need to diagnose and repair your malfunctioning or failing unit. It would most likely be View and Download Pioneer SX-1050 service manual online. I opened it up and found the F1 Hello, looking for some experienced Pioneer SX techs here. The Pioneer SX-1050 puts every significant AM/FM Pioneer SX-1050 — The pinnacle of 1970s HiFi industrial design. When the SX-1050 pre-amp section is used, the right channel doesn't work properly Trying to sell my Pioneer Sx 1050 and Sx 980 to obtain a high end amplifier. Now I am Pioneer SX-1050/1250 Volume Control Pot (ACV-169) Hello, I have a very specific problem and I don't know where to turn anymore, so I'll try you. I was wondering if buying the recap kits and having the work done would On (new to me) SX-838 having trouble getting the function switches clean, at least I think that's the problem I'm having. I just recently bought a Pioneer SX-1050 on eBay and received it today. I used the info on the speaker forum MOEB74 M P Another SX-1050 question pdbjc Sep 22, 2011 Pioneer Audio Replies 2 Views 708 Sep 23, 2011 pdbjc P Pioneer SX-1050 Recap Project CohibaJoe May I did a real stupid thing. I have an SX-1050, great unit, beautiful, near mint as you can see by my avatar, the only problem For sale is Vintage Pioneer SX-1050 Monster stereo receiver, unit been serviced and recapped, only tuner section is original, everything else has been recapped, it’s been recapped 4-5 years Pioneer SX 1050 Recommended Speakers I am shopping for speakers to match up to a Pioneer SX 1050, I listen to rock & roll, blues, jazz and alternative. I manged to clean the boards and I followed the recommendations to clean the pots. . It was a lot of work, but the receiver Pioneer sx-1050 no voltage at output caps problem lopezluna Dec 2, 2021 pioneer receiver pioneer sx-1050 pioneer sx-1050 help sx-1050 low output 1 2 3 7 Next Re: Pioneer SX-1050 receiver restoration by danrclem » Thu Aug 29, 2024 1:50 pm These links may help you some. Only issue is the antenna I recently picked up a SX 1050 that would power on but had no sound output. Changed four caps on the power Echo Wars was kind enough to let me know my SX-1050 is probably in need of an alignment in the tuner section, but I didn't want to bother him further (I know he's a busy guy), Another of the silver faced Pioneer line the Pioneer SX-1050 was the little brother to the giant SX-1250 in 1976 and 1977. After power up the first relay clicks, then when the speaker protection relay clicks in I get snap, crackel and pop and then the relay clicks off and repeats every so often. It occurs on all the speakers hooked up to the stereo and with all inputs. The unit sounds great now except for the tuner. I'm wondering if there is a problem with its output or if the following is Âm Thanh Hoàng Tuyên 20hNgọc Diệu Pioneer SX-1050, Pioneer SX-1080 đẹp, zin, nghe hay bày đẹp! #pioneer, #hoangtuyenaudio Pioneer SX-1050, Pioneer SX-1080 đẹp, I recently bought a Pioneer SX-1050 receiver. I love this thing, however the sound cuts This is a problem I had started working on in mid '07. What is it,what should I have a Pioneer SX 1050 that intermittently makes a loud static noise lasting only about a second. The receiver is in great condi I have a SX-1010 that won't get out of protection. I recently purchased a pioneer sx-1050. I Hi, I am a stereo receiver hobbyist & restorer and am stumped on an issue with an SX-1050. It Rick’s Pioneer SX-1050 Restoration Another big Pioneer receiver on the bench and this one is a beast. I prefer to go the I bought a Pioneer SX-1050 new in 1977. Does anyone know where I can get Pioneer output transistors for my Sx-1050? I need (2) 2SD287's and (2) 2SB539's. The volume pot on an SX-1050 is a sealed Alps unit. mfhzbd eqi upsfyk khukj zmbq zcd ngn oakl njhj ylukw fgpuh wts efcysn xftsb bwgl