schematic
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Luxman T12 Tuner SM, Anyone?
Greetings - Does anyone know where I could find a Luxman T12 Tuner service manual. I have a schematic, but I can't seem to find the SM anywhere online. Help would be appreciated. Thanks. -
Schematic for Counterpoint SA-100 Power Amplifier
I'm looking for a full schematic for my Counterpoint SA-100 power amp. There is a schematic posted online in various places that is partly in italian. My repair technician is in the process of troubleshooting my amp and that schematic is apparently not complete enough. Any thoughts?- MarmotDavid
- Thread
- counterpoint hybrid amp sa-100 schematic
- Replies: 0
- Forum: Tube Audio
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Load box Construction
Hello guys! Sorry to bother. I originally posted this question on the pioneer forum, but when I looked around the site more it became clear it would be better to post it here. I have been having trouble building a load box schematic from a pioneer manual. I'm gonna copy the original post I...- Mrcoolest123
- Thread
- construction help schematic switches
- Replies: 2
- Forum: Solid State
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PIoneer Tuning Fork Load Box Help!
Hello guys! Sorry to bother again, but this time I am really confused about an electronic system. I have learned a lot about basic electronic components reading the pioneer tuning fork series, and by reacherching basic electronic theory online, but I cannot seem to solve this problem. On...- Mrcoolest123
- Thread
- help instruction manual manual pioneer schematic
- Replies: 0
- Forum: Pioneer Audio
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Polk PSW150 schematic?
Does anyone have access to this, or a service manual? I called Polk, and they said they don't have it anymore. Of course, the first person I talked to asked me what a schematic was. Really. I hope they didn't find my laughter insulting.. it was spontaneous and unintentional. He was kind...- MuseChaser
- Thread
- polk psw150 schematic
- Replies: 3
- Forum: DIY
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Magnificent Magnavox Stereo Console Repair; Need schematic for Mag amp 175 GH
Hello Everyone, I am restoring a "Magnificent Magnavox" Stereo Console. I can't seem to find a schematic, parts list, amp photo identifying parts, etc. The only identifying marks for the console are in the attached photos. I would love to know the model number, the year, can't seem to find a...- rolf logan
- Thread
- console magnavox magnavox amp 175 schematic
- Replies: 5
- Forum: Tube Audio
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Need Help for Schematic Interpret
I have Akai GX 600DB that is not erasing and recording. I want to start step by step with erasing the tape problem. Here is erase operation schematic: Here is the service manual pdf. First of all, I could not get any AC signal generated with the L3. Also, I have checked all of the... -
Animation of the Fisher 500C selector switch function - w/ seven drawings
I was facing a job involving rewiring of the 500C’s 7-position 5-section selector switch and realized I did not have near the understanding I needed to feel good starting. To help myself get there I put together 7 drawings to show the state of the network and signal path for each switch... -
AVA Ultravalve schematic?
I'm helping a friend whose AVA Ultravalve just went dead, tubes glowing, B+ is there, a bit high at 460V. No signal out. Sort of guessing that a lower voltage PS has failed. He can't find his manual. Anybody know if Van Alstine included schematics in there, and does anybody have a copy they...- bill-g
- Thread
- ava schematic ultravalve
- Replies: 21
- Forum: Tube Audio
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Amplifier build
Hey AK I'm starting this thread to share this build, and hopefully get some feedback while doing so. It's gonna be an expensive build, so slow process is suspected :) The chassis that'll suit the 8pnp/npn will be from Modushop; 5U/400mm There are some adjustments to the old schematic I'm posting... -
Dynaco ST-70, 1959, Freshly Drawn Hafler Schematic :)
https://www.dropbox.com/s/k8bo95iab6bc9vu/Schematic_Dynaco St70 Final_2021-09-28.pdf?dl=0 I like to make older Schematic nice a "pretty" for my own archiving, but I rather share it, as maybe its still helpful today High quality PDF available above. Prints out very nice! This does not take me...- zastin17
- Thread
- 1959 amp dynaco halfer schematic st-70 tube
- Replies: 4
- Forum: Tube Audio
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Bose AWR1-1W Wave Radio - High Pitched Squeal in right channel
The squeal is not affected by turning the volume up or down. I can hear the radio station playing but the high pitched squeal is very loud and makes it impossible to listen to it. The squeal is always there as long as the radio is on whether in AM, FM or Aux, high program volume or low...- redpackman
- Thread
- bose radio diagnosis help schematic wave radio
- Replies: 1
- Forum: Solid State
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Hoffman ST-2 Amplified Speaker as a Learning Project
(NOTE: the amp model in question should be 2ST, not ST2. Not sure how to edit the title of the thread to reflect this, so adding this note here.) Hi All, newbie audiophile here. Just learning about hifi and especially interested in tube sets. I've been doing quite a bit of reading and...- ToanDef
- Thread
- 2st amplified speaker hoffman paper/wax schematic wax capacitor
- Replies: 16
- Forum: Tube Audio
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Soundcraftsmen PE-2217 Schematic/Service manual
Hi ! I have a Soundcraftsmen PE-2217 in great outer condition but someone really messed up the inside (wrong or incomplete wiring, wrong or probably wrongly orientated caps, burnt resistors). I could really use a schematic or even service manual. Thank you- depaj
- Thread
- pe-2217 schematic service manual soundcraftsman
- Replies: 33
- Forum: Solid State
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Magnovox 2st257
Need help finding schematic for this model.- Twalt
- Thread
- schematic
- Replies: 78
- Forum: Tube Audio
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Need help identifying the audio path
Hi all, I'm a budding DIYer and I need help identifying the audio path in this schematic I have. I want to understand what parts touch the audio. :music: I plan to do a recap soon and I know many would say it's not necessary as long as it works, but i for one like the peace of mind especially...- KinoRodori
- Thread
- lm4562 noob opa2134 opamp recap recap list request schematic sony sony 570es sony es
- Replies: 4
- Forum: DIY
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XSim JBL L100 Crossover Mod
Any constructive input? I've checked out a few tried and generally accepted modifications around the web, Murphy, Janzen, etc. but wanted to simplify their quite elaborate crossovers. (Also, I'm not sure if I should have started a new topic. Lemme now if I should delete this and do that.)- Lou F Quincy
- Media item
- crossover mod jbl l100 schematic
- Comments: 0
- Category: Speaker Gallery
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Yamaha NS-344 Speakers The Definitive Thread (Maybe)
After benefiting from the work of others for years, I've finally decided to give back to the community. I recently purchased a set of vintage Yamaha NS-344 speakers off eBay. They're in really good condition but I noticed when listening that the right midrange speaker wasn't producing much...- SonicTemple
- Thread
- capacitor crossover inductor layout ns-344 ns344 repair schematic yamaha
- Replies: 7
- Forum: Speakers
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Yamaha CR-220 Schematic Hi-Res
After struggling with repairing my Yamaha CR-220 partially because of the poor quality of the online service manuals, I scanned the schematic from the owner's manual at 1200 dpi. It does not have the reference voltages like the pdf copies of the service manual found online, but it leaves no...- DoctorDoug
- Thread
- hi-res schematic yamaha cr-220
- Replies: 9
- Forum: Yamaha
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Weak Right Channel, Only Aux and Tape Inputs
Hey everyone, I have a Kenwood KR-4070 that I've used for about two years now with no problems but recently I noticed that the right channel is very quiet, but only while running through either the Aux or Tape inputs. The Phono input works flawlessly and has great sound through both L/R...- oreil071
- Thread
- balance deoxit diagram input kenwood kr-4070 schematic troubleshoot volume weak channel
- Replies: 8
- Forum: Solid State
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Electro Voice FM12-2 crossover schematic
First time poster hoping that I'm not inappropriately busting in. I couldn't find this particular issue anywhere on the site or the greater interwebs so ... I have a number of EV FM12-2 PA floor monitors (2 way, EVM12L woof and T35 tweet) that sound very different from each other. They are from... -
Yamaha CA-810 Schematic Issues
Serious issues between schematic, drawings and parts schedule. I have the hfe and Analog Alley service manuals and both show the same issues. I believe unless someone has a more updated service manual I must find someone who has a CA-810 that could document the Power Supply 800 series of parts...- Yamaha5000
- Thread
- power supply voltage schematic yamaha yamaha ca810 yamaha yamaha ca-810
- Replies: 69
- Forum: Yamaha
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Yamaha CA-810 Schematic Issues
I have the Service Manual from hfe and Analog Alley, for the most part they are the same. Major issues exist that component locations, schedules and part numbers do not match Most importantly to me now is the Power Supply 800 series parts. Unless someone has a more updated service manual I think...- Yamaha5000
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- schematic yamaha yamaha ca810
- Replies: 0
- Forum: Yamaha
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Schematic Help - Phono Preamp Capacitance
Hi, I'm new to this forum and I'd like to ask for some help concerning my Audio-Technica LP120X. I own a Denon PMA-800ne amp with build-in preamp for MM and MC cartridges. Now I'de like to figure out what the preamp capacitance is, to see if it meets the recommended load capacitance of my...- Canticleer
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- capacitance denon help schematic
- Replies: 8
- Forum: Turntables
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KR 4140 transistor pinout
Kenwood guru's! Putting in new transistors. Does this interpretation of the E,C,B pinout look right? Top image is whats on the board.- Boyum
- Thread
- schematic
- Replies: 10
- Forum: Kenwood-Trio/Kensonic-Accuphase