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I use a cleaning disc which works well. Bose do not support the notion that replacing certain caps will make these things work. The lens needing cleaning is the prime suspect.

Hi Ive come to use my machine tonight not used it for a month and its developed a problem.... When i come to switch it on it switches off straight away it will not stay switched on 20 minutes before this it was fine i switched it off then cameback after 10 minutes at it started to do this my model is the Toshiba DVR20KB DVD & VHS Recorder

This tutorial was excellent, it helped me fix my partners Bose. So thanks for posting it.

Thank you very much for the video. I had exactly the same problem: a low output level on the left channel and background noise . As I am not a technician and therefore have neither the knowledge nor the specialized measuring equipment I worked by reasoning starting with the simplest things (visual inspection to check whether there is something fishy like a capacitor leaking or a burn, testing the speakers and the amplifier (Quad 405) by reversing the connections, handling the sockets, etc.). In the end the problem was a bad connection: I noticed it by lightly manipulating the socket which connects the input card with the motherboard (a black plug with red, yellow, green, white wires). A little contact cleaner spray on the male and female parts, I also re-soldered the socket and the problem was solved. I hope this can help those who are facing this problem which can have multiple causes as shown in this excellent video. Keep faith, these devices are very solid (unless they have been badly tinkered with)! PS: I bought my Quad 44/405 new when I was young and they are still in service (so do I).

Old Charlie decks, had same issue. You had to split the deck just to replace the pinch roller. I miss all faults like these. Some video heads where a sleeve bearing, I would take them apart and service them

Nice I have an RCD-38DAB+ and I think it has the same issue.

Hi, what size are the drive belts in the tape deck? I've got my father in laws old jj500 that needs new belts.

great video Chas !

This is a great video thanks Chas. I have just bought the same model from a clearance sale and it has the dreaded switching off after a few seconds. it will play dvd's perfectly and I can press the select button for vhs and it's fine but when I try to load a tape it tries to load it and the machine shuts down completely. It would not eject the tape using the remote but I found if I held the eject button on the machine and pressed power on on the remote the tape came out ok. I did discover that the head on mine was tight and after watching your video I dismantled it and lubricated as you did and now it spins very freely. I was most disappointed when it didn't solve the problem. I'm assuming it is a mechanical issue and will try again tomorrow. Thanks again for a very informative video.

My tray has been a problem for years and thought it was finally busted. Watched the video and just had to get the white tab back in the groove. Now works like new. Thanks a bunch.

My ql keyboard works but presses more than one key. For example if press J I get JJJJ Any ideas?

Güzel bir çalışma olmuş tebrik ediyorum ayrıca bilgi paylaşımınız için teşekkür ederim. :)

I loved your video, however, I didn't see you desoldering the prevention soldering point, can you confirm if it's needed to do it, I'm currently waiting for a SF101 16pin for a Sony CSF 70 unit. Thanks.

As a 'fixer' myself I had to smile as I have had similar experiences. Thanks for posting this as its exactly the 'solution' to my problem.

Excellent! I'm having the same problem with my Fein Multitool. Thank you sir!

Could you please give details of the tube of lubricant you used on the mechanism, I couldn't catch name from video. Thanks Steve

Hi Chas , Do you know where I would be able to get a service manual for the Denon RCD-M39 ??

Volume not working

I don't think I'll ever be brave enough to get near the back of a CRT. Interesting video, thanks.

Giving Cub monitors a new life.. Give this man an MBE.

Awww, there's my little cubbie! It looks like it gave you a bit of a fight! lol

Great job, sir!

well come back chas hope all is well .good to see you back doing what you love.😃❤

Hi, just subscribed, nice channel.

13:10

I have the Bose wave music system IV and everytime i try to insert a disc it says it's inable to read that disc, i tried multiple, same scenario, the models 417788-wms, i am thinking of cleaning the lens by watching your video on the weekend, hope it fixes it! I also don't have the controller (i found this bose for $10 CAD at a thrift store)

I have this exact same model, colour, with a dodgy volume switch. Hoping a bit of spray will sort that out (it spent a couple of years in sticky Singapore, plus being transported back in a humid container). So helpful to see how to dismantle it properly - thanks so much, and how to clean it. I am also very jealous of your work station!

Hi, sir same torch I replaced 2.4k resistance & 13001 transistor, but when i charge not glow even sensor works

I have the same player and it says invalid format on thw screen once powered up to the tv. What could be the cause or fix if any?

I am watching this video for a second time and, let me say, it was worth. This man does a fantastic trouble shooting. My Deck # 2 door is not opening. I found the problem is in that sprocket gear covered by the printed board at the back of the mechanism. If I turn that gear with my finger, the door will open. I didn't see how to remove the printed board. How can that board be removed ?

Miracle! Same model, CD not reading. Cleaned lens--no response. Optical assembly moving and tracking but no observed laser output. Decision: Scrap as beyond economic repair (even at £5 for a replacement not worth the time for a machine with a resale value around £10-15). Revised option: blow some air. Result: working perfectly. Now I suppose I'll need to reconsider the other dozen machines in the junk pile. . . Even after over 40 years in electronic maintenance (albeit not in consumer equipment) there are still lessons to be learnt!

Hi , i have Pioneer SX 434 but the "stereo" light bulb doesn't work. The light bulb is not faulty. I don't hear stereo sound but mono in FM. It could be HA1156 ? what do you say? Thank you. Sam

I'm glad you found it a simple fix because I destroyed mine taking it apart to try and replace the cable. Wish I'd seen this video first! 😭

stay away from electronic devices . i mean it

Dear Sir, Thank you very much for this tutorial. It is extremely helpful. I have the exact same problem. However, when I opened the inside, I realised that one of the two sockets connected to the CD unit is directly soldered to the circuit board (at 14:51 in the video). How is such a thing possible, and do I have to cut the wire completely and solder a new socket to be able to use it after changing the unit?

hi chas not had a video from you in a wile hope you are ok and not unwell miss your videos kind regards penfold178

I think you've persuaded me that these newer all-in-ones are more trouble than they're worth. I like fixing stuff but I lack the patience (and arguably the expertise - that would have taken me quite a while to work out if at all!) to be bothered with that, for what is a modern device with all the inferior Chinesium goodness that implies. I admire anyone who gets the job done though!

Хочу таку деку! Всім доброго вечора, з Незламного Харкова! Super Video! 📸

My philips dvd750vr dvd vcr combo turns off with display showing err 1 when i turn it back on it spits the tape out, I've already cleaned the mode switch

I have a BBC model B and I'm looking for a Cub montior takes me straight back to school days! I'm a bit apprehensive about getting one as I have no knowledge of how to fix them.

I had the same issue. Taking the tray out and putting it back in worked for me too. Thanks.

Thanks for this. I had the same error on my Fein Multimaster and this helped enormously. I added a heat shrink sleeve under the rubber cable sleeve when reassembling as it’s not a good fit. Adding the extra sleeve makes the rubber sleeve fit much tighter and no wiggle room (wiggle probably caused the cable problem in the first place).

I would update the bios using a cpu that did work and ram that did work. go into the bios with gfx card connected, then proceeed to go to internal devices and find the output and instead of it being on auto or pcie change it to inbuilt.

Good Evening My Dad has a RCD M38 DAB Receiver He cannot pre set the channels could you please let me know if this receiver has n internal battery that would hold this information and it’s failed. I followed your channel to him. I would be grateful of any help. Many thanks Susan Morrell.

Got the drive opening and closing again, it was misaligned too. But i think iw tried too hard earlier, as it wont read any discs anymore :(

Have you got RAM installed?

Having been asked by CCL to make this video public, I am now turning Monetize ON.

Hi Chas, do you need to plug in the 12v cpu connector too from PSU to motherboard? Could try unplugging battery to reset bios maybe.