tag:blogger.com,1999:blog-5053304027701850753.post7551930002764897323..comments2024-03-26T03:08:17.319-07:00Comments on Joe's Technology Blog: Logitech Squeezebox Boom VFD Display Repair Guide Part 2: Filament Power SupplyJohanneshttp://www.blogger.com/profile/08796700991875418529noreply@blogger.comBlogger19125tag:blogger.com,1999:blog-5053304027701850753.post-15280903755285943082022-08-30T15:03:31.353-07:002022-08-30T15:03:31.353-07:00Thank you so much for your explanations. I’ve just...Thank you so much for your explanations. I’ve just followed every steps and saved my boom from black screen issue. Huge thank you from France for sharing such genius way to solve screen issue!! Zogzognoreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-83635647396825272012021-03-18T11:01:24.238-07:002021-03-18T11:01:24.238-07:00Hi Andre,
kein Problem, die Bezugsquelle bin ich....Hi Andre,<br /><br />kein Problem, die Bezugsquelle bin ich. Derzeit kostet ein Boom-Display 42 Euro plus Versand. Mail gerne an die oben angegebene GMail-Adresse, ich helfe gerne auch bei der Beurteilung.<br />Wo wir dann eh einen Versand haben, kann ich auch zwei neue Sicken beilegen, die kosten 5 Euro pro Stück (etwas teurer als beim niederländischen Anbieter, weil ich ja auch schon Versandkosten dafür hatte).<br /><br />Viele Grüße<br />JohannesJohanneshttps://www.blogger.com/profile/08796700991875418529noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-77963430984655750972021-03-18T10:55:55.482-07:002021-03-18T10:55:55.482-07:00Hallo Johannes,
ich schreibe einfach mal in Deutsc...Hallo Johannes,<br />ich schreibe einfach mal in Deutsch und hoffe du verstehst es ;-)<br />Mich hat seit neuestem auch das Squeezebox Fieber erfasst. Letztens habe ich mir eine Squeezebox Boom gebraucht gegönnt, bei der die Sicken der Tieftöner repariert werden müssten.<br />Leider ist aber auch das Display nicht mehr so hell wie ich es mir erhofft hatte.<br />Zum Glück bin ich durch Zufall auf deinen Blog gestoßen und habe versucht wie sie anzulesen.<br /><br />Handwerklich bin ich in Sachen Elektronik eigentlich ganz gut ausgerüstet und wurde mir auch den Austausch und Probleme zutrauen.<br /><br />Aber: wo bekomme ich das Display her? Du schreibst, dass das Display ohne Probleme zu bekommen ist, aber kannst du mir eine Quelle nennen wo man das für einen vernünftigen Preis beziehen kann?<br /><br />Könnte ich dir mein Foto schicken, so das du das mal anschaust und mir eventuell sagen kannst, ob es sich doch ein anderes Problem sein könnte?<br /><br />Viele Grüße aus Bonn<br /><br />Andre anjokuhttps://www.blogger.com/profile/10745761190496312272noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-48636654530452814812021-01-06T03:29:57.683-08:002021-01-06T03:29:57.683-08:00Well, if you actually mean the Squeezebox/UE Radio...Well, if you actually mean the Squeezebox/UE Radio, it has a colour LCD of rather mediocre quality if you ask me. It fails in time by fading out and eventually showing just a white surface. Replacements are not available for sale but there are Logitech keyboards where the same model was employed. Here's a blog link for more info: http://squeezeboxman.blogspot.com/Johanneshttps://www.blogger.com/profile/08796700991875418529noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-56849158164101234702021-01-05T11:53:31.796-08:002021-01-05T11:53:31.796-08:00Great blog about a great product which deserved a ...Great blog about a great product which deserved a much better fate! Have three of them but one had 'died' and your diode fix got it back to life, I surprised myself with my DIY 'skills' but your explanation is excellent. So many thanks... out of interest what screen display was employed in the Radio? - that always looks rock solid (similar to the Amazon Echo?).paulnoreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-85352067497800267712020-09-20T19:27:40.134-07:002020-09-20T19:27:40.134-07:00Thanks Joe, I'm in asia.
from your blog, I got...Thanks Joe, I'm in asia.<br />from your blog, I got enough information , and repaired my SB boom's bass woofer(replaced two with brand new pair) some days ago. <br />today , I decided to repair the VFD with three 1N4001.<br />so lucky, it done!<br />So many thanks to your work.<br /><br />Best Regards<br /><br />piggyAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-62978459599917948492020-05-19T09:06:37.467-07:002020-05-19T09:06:37.467-07:00Thanks Joe. I know your post is more than 4 years ...Thanks Joe. I know your post is more than 4 years old. But I do have 2 SBs that have the same problem. I've zero skills. I couldn't even tighten a loose screw. I live in Denmark 15 minutes from Flensburg, Germany. Where in Germany do you live. I wouldn't mind driving there to get help. That's how much I love my squeezebox Booms ;)<br /><br />Hope to hear from you.Nyandoe Ndorohttps://www.blogger.com/profile/15785349301476090901noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-5979426525469611562019-09-29T04:21:14.306-07:002019-09-29T04:21:14.306-07:00Feedback like this is the greatest reward. Thank y...Feedback like this is the greatest reward. Thank you, and congrats on fixing your stuff. Cheers, JoeJohanneshttps://www.blogger.com/profile/08796700991875418529noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-51972220012866311892019-09-28T18:19:33.363-07:002019-09-28T18:19:33.363-07:00Thank you so much for this post! It is a great se...Thank you so much for this post! It is a great service to Boom owners with this issue. I thought I probably had a different problem because I never noticed any gradual decline, the display just quit working (though it would sometimes reappear briefly). But sure enough the voltage was over 5 and this fix worked beautifully! I had to adapt it somewhat since I only had large diodes on hand. But I made up a pack of four in shrink tubing, tucked it by the WiFi card, and used a nearby ground point. Works perfect again! Many, many thanks for the tip. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-33912802081425891922019-09-23T02:59:52.092-07:002019-09-23T02:59:52.092-07:00Hi Steve, sorry to hear it didn't work out. Pl...Hi Steve, sorry to hear it didn't work out. Please be aware that the supply rail that typically fails is not the +55V grid voltage but the filament voltage which is +5V on the left side (pins 1-3) and, depending on the brightness, between roughly +1.5 and +3V on the right side (group of three pins at the very right edge of the display).<br />You should be able to measure +55V between the pins 5 (VDD2) and 6 (GND). In the group of 12 pins, these are the first two pins on the left. Careful, shorting them out may destroy the high-voltage power supply. The +55V grid supply is generated in the circuitry you can find on the top-right corner near the speaker connector (board facing to you with the side where the headphone/ethernet/power connectors are). There is a capacitor/diode bridge with three rather large ceramic SMD capacitors and some SOT23 diodes, and a control chip right next to the speaker terminal. If you can measure filament voltage but no +55V, part of this might be broken. Look for burnt components or places where a component might have fallen off the board (actually this did happen!)<br /><br />I think there is an early power state where the Boom does not power any part of the display so you would not be able to measure +55V or +5V anywhere. If this is the case, the Boom is probably dead. This is the unrecoverable state that some Booms end in for no apparent reason. As of now, nobody knows how to fix that.<br /><br />Good luck anyway. If you need more assistance, contact me at johannesfranke74@gmail.com, I'll be glad to help.Johanneshttps://www.blogger.com/profile/08796700991875418529noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-27846198273489652612019-09-22T21:10:15.723-07:002019-09-22T21:10:15.723-07:00Made the diode pack, touched the leads and no volt...Made the diode pack, touched the leads and no voltage drop? stripe to ground side. I have no 55V rail voltage either, does this kick on or is 55V rail voltage constant? Where is it generated from? Steve Whttps://www.blogger.com/profile/01828709593986455431noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-56060623657481030612018-09-25T07:10:38.631-07:002018-09-25T07:10:38.631-07:00I see you've given it a _lot_ of thought, far ...I see you've given it a _lot_ of thought, far more than I had expected, and your conclusions make sense. <br /><br />Thanks for sharing your expertise!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-46313591979753592562018-09-24T14:15:55.705-07:002018-09-24T14:15:55.705-07:00Actually I have, but my technical skills are insuf...Actually I have, but my technical skills are insufficient for what is required to achieve a full-featured display replacement based on a different technology. I considered this in a time where I didn't know yet how easy it is to get genuine replacement parts.<br />Firstly, the only viable replacement would be OLED. LCD is no concern as they are too dim to shine through the toned front panel. We need a display of roughly 3" diameter and 160x32 square pixels (that's rather large pixels compared to LCDs but rather small compared to LED matrix displays). Anything else would be too different from the usual Boom style.<br />But while OLED might accommodate the dimensions and brightness required, it is another technology that is subject to aging and pixel burn-in. So what's better about that then? It's not even a lot cheaper.<br />By the way, the VFD is driven with a rather complex protocol (part or all of an FPGA is dedicated to this task). This would have to be replaced completely, or the VFD protocol emulated on the display end. It's a really tough task, too hard for me at least.<br />Eventually, Noritake Japan is still producing and shipping the MN16032GB display which is what Slimdevices picked back in the day, fully compatible and available for a rather low price.<br />So there is no actual reason to change anything. VFD is what makes older SB devices so fascinating and I'm quite happy with it and with being able to help others keep this style.<br /><br />Regards,<br />JoeJohanneshttps://www.blogger.com/profile/08796700991875418529noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-75741306092173354112018-09-24T11:04:52.582-07:002018-09-24T11:04:52.582-07:00You're doing great things with the technology ...You're doing great things with the technology that was put in the Boom originally, but have you ever given any thought to the possibility of replacing the VFD with another technology entirely, like an LED panel?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-77504430993790519192017-12-01T08:58:57.257-08:002017-12-01T08:58:57.257-08:00Besten Dank für die Anleitung. Boom Display geht w...Besten Dank für die Anleitung. Boom Display geht wieder...Moravechttps://www.blogger.com/profile/08291991858364826308noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-14347610506622774632017-11-16T05:59:35.076-08:002017-11-16T05:59:35.076-08:00Bitte schickt mir Eure Fragen ggf. an johannesfran...Bitte schickt mir Eure Fragen ggf. an johannesfranke74@gmail.com. Posts hier bringen nicht viel, wenn sie anonym gestellt werden, weil ich sie dann nicht direkt beantworten kann.<br />Sofern Eure Mails nicht im SPAM-Filter landen, werden sie zeitnah beantwortet. Danke! ;o)<br /><br />Please contact me at johannesfranke74@gmail.com if you have any questions. Using the comments here is not going anywhere if posted anonymously because I have no way of replying directly. Thank you! ;o)Johanneshttps://www.blogger.com/profile/08796700991875418529noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-28545937525378467482017-06-13T14:52:17.141-07:002017-06-13T14:52:17.141-07:00Hey, that's awesome! If only I still had the ...Hey, that's awesome! If only I still had the schematics I could help you so much more! Nice blog post!Calebhttps://www.blogger.com/profile/06623139650545349237noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-72847318920360086082017-06-05T05:16:43.125-07:002017-06-05T05:16:43.125-07:00Whether it works or not YOU ARE THE MAN !! Thanks ...Whether it works or not YOU ARE THE MAN !! Thanks for sharing the knowledge.... Rasdebolhttps://www.blogger.com/profile/18386179223115125750noreply@blogger.comtag:blogger.com,1999:blog-5053304027701850753.post-18266754374377879082017-05-13T09:11:28.408-07:002017-05-13T09:11:28.408-07:00Perfect, brought my Boom back to live...Perfect, brought my Boom back to live...Anonymoushttps://www.blogger.com/profile/16326322209317358558noreply@blogger.com