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bose ps1 service manualPlease do not offer the downloaded file for sell only use it for personal usage. Looking for other manual? For this no need registration. May be help you to repair. You could suffer a fatal electrical shock. Instead, contact your nearest service center. Note! To open downloaded files you need acrobat reader or similar pdf reader program. In addition, Also some files are djvu so you need djvu viewer to open them. These free programs can be found on this page: needed progs If you use opera you have to disable opera turbo function to download file. If you cannot download this file, try it with CHROME or FIREFOX browser. Translate this page: Relevant AUDIO forum topics: BOSE bekotesi rajz Legyszi legyszi ha valaki tudnasegiteni egy BOSE AMP2440-as erosito bekoteseben,azt nagyon szepen megkoszonem. Ez AUDI A3-asbol van, a steker nincsmeg. Basszus vegfoka 2-3mp mulva megfut vagy pozitivba vagy negativba ha nincs a hangszoro rarakva, hangszoroval azonnal letilt, (amikor a kimeneten eljut DC 4V-ig a vedelem lekapcsolja relevel az erositot). Mikor a MUTE hibat kerestem, volt olyan eset is, hogy nem futott meg a kimenet es szolt a basszus rendesen, de ujboli bekapcsolaskor ha nem halkitottam le a potit akkor kikapcsolt a rele, ha lehalkitottam akkor jo lett, de nagyon susogott, arra hasonlitott mint amikor FM radio nincs az allomason, van egy kozos mute tranzisztor az kapcsolja az osszes tobbit, ha azt kiszedtem akkor is megmaradt a susogas, szerintem visszafele jott valamelyik oldalrol ezert szedtem ki mindegyik oldalrol a tranzisztorokat, nem akartam bajlodni vele, hogy honnet jon a susosgas vissza. Mi lehet a gond? Bose Lifestyle CD-20 FLC kijelzo halvany Sziasztok! A fenti keszuleknek halvany a kijelzese. Eleg erdekesen van megoldva a kijelzo tapfesze, sokban fugg a bejovo 12VAC feszultsegtol. Kerdesem az lenne, hogy a futest probaljam emelni, vagy a -24V-ot. A D8-on a 30V is kevesebb, de az AC 4.5V is. Melyik befolyasolja jobban a fenyerot.http://www.gwardiajuvenia.pl/zdjecia/fck/bosch-washing-machine-wft-2800-manual.xml
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A futes, vagy a negativ tapfesz? Udv: Jacint Bose Sounddock 1 tapegyseg csati Sziasztok. Egy baratom megkert, hogy talaljak vagy gyartsak egy tapegyseget a Bose dokkolojahoz. Sajnos az eredetiket aranyarban adjak, igy gyartanom kell egyet. Talatam is egy elegans kis 4 pines csatit, de fennakadtam az eredeti csatlakozo labkiosztasan. Talaltam egy rajzot de nem tudom eldonteni, hogy a kabelen levot abrazolja, vagy a dokkoloban levot. Ha valakinek dolga volt ilyennel, es tudna segiteni, kerem ne tartsa vissza magat. Koszonom.. Similar manuals: You can write in English language into the forum (not only in Hungarian). Search results for: (found: ) ask for a document File Date Descr Size Popular Mfg Model: Found in chassis2model: Found in repair tips. No part of this work may be reproduced, modified, distributed, or otherwise used without prior written permission. Whether you are a musician amplifying your instruments, a mobile DJ entertaining an audience, or the host of your own special event, this system will provide quality sound for audiences of approximately 100 people. The examples below will help you quickly identify the position that can work best for you. Collapsed position Extended position Loudspeaker Array Extension Tabletop Power Stand. Setting up in the collapsed position To get the most sound quality and ensure that seated audience members enjoy the full frequency range of the system, position it on a table (shown above) at ear-level or at the front edge of a stage (not shown). Either one can be used on the top or bottom, but if one extension is used, both must be used. Do not connect any other sources to this input. 1. Before using the microphone, adjust the Channel 1 Volume control fully counter- clockwise. The ToneMatch preset is designed specifically for use with an acoustic guitar.Wireless Wired. Mixed setup A more elaborate multiple musician setup could be as shown below. BOSS BV Car Video Player. Britania Audio Car BAW-USB.http://www.tierambulanz-am-saarplatz.at/uploads/bosch-washing-machine-wfd-1060-manual.xml For full access to the page content, please disable your advertising on our site.Reload to refresh your session. Reload to refresh your session. Did you miss your activation email ? There was some saltwater splashed on to the unit. Previous tech had a look and gave up saying there was too much corrosion. I had a look inside and there was very minimum to no corrosion. I used a dremel to remove the carbon and measured the resistance the short was now removed. I cleaned the connectors. This was on the front panel board, only place where the salt water could have effected. After powering on, the unit keeps shutting down and then starts back up(keeps cycling) due to high current draw. I should mention I have got a 100W bulb in series with the input. All the voltages measurements taken seemed okay and the unit did not shut down. The current draw from the mains were a bit high still. I had a look at the other power supply boards which powers up the amplifiers (page 20 of the pdf). All these were connected at the time just not connected to the amplifier section. I noticed charring of R507 and R508 both have failed open. Z501 and Z502 have shorted out. The two mosfets Q501 and Q502 have both failed open. (I have marked in the photo). What could be the cause of this. I checked the amplifier sections thinking something might have shorted out. Everything seemed to look in order. Could the high current draw be caused by these components being failed. I noticed that all the boards needs to be connected for stable voltages. I noticed by removing this power supply board the voltage ouputs of the aux power supply outs have gone slightly up. I hope some one could help me understand this power supply, and what might have caused this components to fail. Any idea on what to look for next. I have tried attaching the pdf of the service manual in this post but it doesn't seem to upload. Here is the link for the file its in the first post: Thanks in advance. p.http://www.bouwdata.net/evenement/3m-attest-auto-reader-290-service-manuals I came across this blog which has got some good pictures of the unit You've got 4 transistors and 2 freewheeling diodes, any of which could blow out the rest. Did you check all six. I really wouldn't run anything on a light bulb. I hope that you took it out of circuit. Ok, it's fine for a quick check to see if something is totally shorted. The problem is, everything today is constant power, decrease the voltage (drop across bulb) and the current (tries to) go up. That kind of thing was ok with old tube equipment with unregulated power supplies. When all the boards are connected (amplifier, power supplies etc). The units starts shutting down after turn on. I noticed that after a while D502 keeps shorting out. Changed it powered it up again and yet the same thing. Then what I tried was replaced the shorted out diode powered the unit up but this time I didn't connect the amplifier board. The same thing happens the unit keeps shutting down. This time I turned off the unit before the diode shorted out. I removed this particular power rupply (there are 3 identical power supplies in this unit) and powered up the unit again. This time it didn't shut down. I should also mention there was some sparked marks from the heat sink where the mosfets are mounted to the chassis of the unit. After troubleshooting for sometime I came across bulged capacitors(but this was from other power supply boards). I couldn't find any obvious issues. After replacing these components I came across I checked each power supply separately and everything seemed to be ok. Connected all the boards together - same thing. Unit keeps shutting down. So I assumed it might be the 100W bulb which I had in series with the unit. So I removed it placed the 10A fuse provided and powered it up. This time D502 blowed up. I replaced the fuse and took out the problematic power supply out. Powered on the unit, the current draw was unusually high I thought, so I turned of the unit.http://atamusavirlik.com/images/bose-ps1-service-manual.pdf I am pretty much confused on what the issue could be. Why is it D502 which always blows, and could you please explain what the use of the zeners Z501 AND Z502. Any more tips on this would be greatly appreciated In normal operation they are effectively an open circuit. They only way that they would blow up dramatically would be if there were an internal or external short between drain and gate. Did you check D503 and D504 too? (With the amplifier disconnected). I would have thought that D502 would be able to take anything that the MOSFETS could dump into the transformer. But you seem to be saying that it takes a while for them to blow. If they are overheating and blowing there must be some serious current. I would try to test things using the shortest possible power on to get a reading off it. Check the voltage on C516 on a good supply with no amplifier connected. Check it on your bad supply. Don't go for accuracy, just really quickly.The unit cycles for sometime and then the D502 blows at that instance the bulb also remains on at bull brightness. However I checked the outputs of the other power supply with the faulty one removed and they register as around 25V but its very unstable. I am assuming that's because all the power supply aren't connected. What else should I check?:S Is it the voltage or the current. Are you sure that your replacements are the right ones. Can you repeatedly cycle without blowing if you do it for short enough each time. Hook up a 5K resistor (ok, 4.7k, 5.1k, whatever) to a LED on each of the 27V outputs. Do the LEDs go on? It could be that the transformer is shorted (but I'd expect the MOSFETs to go first). Check the transformer winding resistances against the good supplies. Is the snubber resistor R511 ok? I have included the picture of the last time it has blown. Notice the carbonized PCB at where the heat sink is suppose to be soldered. Is this a problem? Yes I could repeatedly cycle without blowing the diode if its done for short time.http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1626c44d81914b---cambio-manuale-smart.pdf This time Q501 and Q502 drain to source is shorted. I would have to replace them too. Nice idea with the leds, I shall try it. I will have a look at the transformer wingdings too. The resistor R511 checks out ok. I would like to ask what the use of this snubber resistor. Thanks so much for the help Are you triple sure that you have D502 in the right direction. If it were backwards, it would blow sky high and also take out Q501, Q502. When you started out was it all so burnt. Are you cleaning all that carbon burn out? I had taken pictures before I took them out and also checked against other supplies as well. The very first time as I mentioned in my first post the zeners and the mosfets were faulty. I didn't realize then the diode was also shorted out. Its only when I was replacing the mosfets I noticed the shorted diode. I replaced it before powering up. Yes I am cleaning out the carbon. I'll report back. Thanks. Possibly gate discharge resistors. I didn't see them mentioned. The moment the power is on Q501 and Q502's drain and source shorts out instantly. If I let the unit cycle for a couple of times then D502 blows up. I checked each power supply separately used a LED to check the outputs. This only happens with the faulty power supply. I assume the protection works as the supply shuts down. I have checked ohms readings of the winding of the transformer against a good supply and it's identical. What I can't figure out is why the mosfets keeps shorting out. Any idea on what to look for next. Interesting fact - The heatsink which the mosfets are mounted on are actually used to connect the positive input to one of the transformers terminal. Eventhough there are mica strips there is a connection between the heatsink and the tabs of the mosfet. Which is the case with all the power supplies. Any idea on what to look for next. Thanks in advance PS: R501 and R502 are okay You could try swapping in one of the known good transformers.art-electric.com/userfiles/casio-edifice-4334-instruction-manual.pdf It's unlikely to be the problem, but it would take something off the list. Since you have a good identical power supply, you might try comparing some resistance measurements between the two after you think you've replaced all the bad parts. Any discrepancies likely means you've missed something. But I can't figure out how this is happening. Its only when I put in the screw it shows a connection. The mica strip is intact, there were no rubber spacers used with the screws. I cross checked with the other power supplies and its only happening with this faulty one. The screws are quite tight, with the other power supplies. Finally what I did was I had the screws of the tab Q503 and Q504 slightly loose with the faulty supply. The unit is working now with stable power supply. I have attached a photo of the power supply, as you can see the heat sinks are connected to the positive input of the supply. Q501 and Q502's drains shows a connection with the heat sink but that's from the drain being tied to the positive supply and not from actually touching the heat sink. I am still wondering how the two transistors are connecting with the heat sink because visually there is no connection. Thanks. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Bose Companion 3 Service Manual. To get started finding Bose Companion 3 Service Manual, you are right to find our website which has a comprehensive collection of manuals listed. Our library is the biggest of these that have literally hundreds of thousands of different products represented. I get my most wanted eBook Many thanks If there is a survey it only takes 5 minutes, try any survey which works for you. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Bose L1 Compact Manual. To get started finding Bose L1 Compact Manual, you are right to find our website which has a comprehensive collection of manuals listed.https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1626c4576501e9---cambio-pallet-manuale.pdf Our library is the biggest of these that have literally hundreds of thousands of different products represented. I get my most wanted eBook Many thanks If there is a survey it only takes 5 minutes, try any survey which works for you. Learn more - opens in a new window or tab This amount is subject to change until you make payment. For additional information, see the Global Shipping Programme terms and conditions - opens in a new window or tab This amount is subject to change until you make payment. If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. 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We may receive commission if your application for credit is successful. Terms and conditions apply. Subject to credit approval. We may receive commission if your application for credit is successful. All Rights Reserved. User Agreement, Privacy, Cookies and AdChoice Norton Secured - powered by Verisign. Learning How to Complete a FishBone Diagram. Knowing how to complete a fishbone diagram is an important ability for anyone to get.http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1626c44e80d9fd---cambium-networks-manuals.pdf With this information will assist with the diagnosis of a fish specimen. Also, it can aid with the identification of a fresh specimen. The skeleton of the common fish specimen is your fishbone, that's the section of the body that connects the jaws to the spine. 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