Posts by rickjansen (archived2)
22 total posts20 results
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Nov 16, 2016 14:21Moving house, so going through all my "stuff", and found the dome (just one), the ruler is [cm]: Hope this helps! rick
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 27, 2016 17:46Thanks Martin! I now notice the Display circuit has a connection to RESET, and also ST-BY to the processors, but I don't understand yet what is happening there. I could replace C3 (small 4µ7 tantalum), and even C7 (Vss e…
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 27, 2016 17:00Well, today I replaced the HEF40106 and the two CD4013's. The HEF40106 cost me a bicycle ride twice, because the shop was out of HEF40106's, and I only later realized that the 74HC(T)14 is a direct replacement here (5V V…
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 26, 2016 22:00Datasheet for u264b: http://novatech-instr.com/Fun/u264b.pdf For u664b: http://www.datasheet.hk/view_download.php?id=1435101&file=0200%5Cu664b_4564098.pdf It seems max input voltage for u264b is 500mV, for u664b it's 0..…
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 26, 2016 21:21[quote user="Dillen"] U664Bs vs U264Bs [/quote] Interesting, and thanks for the explanation! Regarding heat: the power board of my Beomaster 8000 looks quite "fried", the area of the board between the two power resistors…
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 26, 2016 20:08Did you test your 664's later? Are they really faulty? Could very well be, these prescalers seem to break quite often, if I can believe Google. Can't find a datasheet for 664 and 264 yet... I'm just reporting my machine …
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 26, 2016 19:31@Dillen: Saw a post regarding the prescaler in the archived forum: /forum/general-discussion-and-questions/beoplay-e8-earbuds asking wether the u264b and u664b prescalers are equivalent, Well, my Beomaster 8000 has a u66…
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 26, 2016 17:16Wow, he has replaced the individual 6500 processors! I intend to replace the entire processor board with an Arduino, unless I get it fixed after all. That board is horrible anyway. Arduino Mega has 54 digital pins, or I …
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 26, 2016 16:31- Replacing the crystals did not fix it. Well, €1,50 down the drain. At least the processors still work. - made sure the remote control signals could not reach the processor, in case that circuit is messed up, but no. - …
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 24, 2016 19:33[quote user="Dillen"]Interesting though I think I won't be as simple as it may appear...[/quote] Reading the Tech.Produktinfo now (German), and it does not seem that horrible. It'll be quite some work, but it'll be fun t…
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 24, 2016 16:58Replaced the 7805, voltage now is 4.98V, a bit closer to 5V, but still: nope. Really odd thing there is something with a memory in this process. If I unplug and replug in, say 5 seconds, the Beomaster computer still is u…
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 24, 2016 14:40Thanks! Tried that, but no. I do notice the 5V is 4.82V in reality, so 3.6% less than 5V. Perhaps I should replace the 5V regulator, it's just a 7805.. rick
Beomaster 8000 processor board -> Arduino?
in Imported Content (Unmapped) · Oct 24, 2016 13:36Well, after having my M100's phaselinks repaired my Beomaster 8000 refuses to startup properly. It does display the decimal dot, and does click it's relays when pressing "0", and responds properly to the volume control a…
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Oct 24, 2016 13:14Just got the repaired phaselinks back from http://www.audiolab.nl/ and they look as new: Putting the speakers back in the box is not easy, the wires are very very short, and glued to the casing. I ended up extending them…
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Oct 13, 2016 08:11Will do! May take a few months as I'm in the middle of packing for moving house, so I don't know where they are right now! :-) Thanks for all info people! Much obliged. Will report back on the repair of the phase link sp…
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Oct 12, 2016 10:17Mine have (had) a perforated metal dome, but they were only glued on. Just for protection I guess. I still have them, but where... rick
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Oct 12, 2016 08:24Beware of recapping: I have this not very clear image of the schematic, and some of the caps seem to be unipolar ones! At least, they are drawn with two non-black-filled rectangles as opposed to the "true" electrolytics.…
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Oct 12, 2016 08:13"Is your woofer surround also rubber?" - yes, and it looks fine apart from the dent in the paper dome in the middle. I'll leave that as is, I don't think the center dome adds to the sound. Same for the 3rd speaker. I don…
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Oct 12, 2016 08:12Thanks for all the info! I found a link in the old forum to http://www.speakerreparatie.nl (same as http://www.audiolab.nl/ ) who repair these, called them and sent off my speakers already (I am in The Netherlands). The …
M100 speakers overhaul - what is the second speaker?
in Imported Content (Unmapped) · Oct 11, 2016 14:02Hi all, After many many many years my M100 speakers need some work. Most speakers are okay, the woofer has no dried out rubber, and it's coil moves fine, and just has a dent in the paper dome. Alas, the one above it is g…