ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Following an accidental switch off at the mains, ie not powered down via 0, FM took some time for displayed frequency to actually match the station. This would take about 10 - 15 mins whilst other stations could be heard running through. Then everything fine.
Following proper power down, now will not come out of standby or displays all the 8's. I am competent to component level and have the service manual. Any ideas?
Hi Servicetech welcome to Beoworld. It just so happens there has been a near identical case in the last week, and should give you enough to be going on for now ;-)http://archivedforum2.beoworld.org/forums/t/3796.aspxGood luck!
Olly
You know, I've been struggling with my FM not going beyond 97MHz for almost two years now. I could never find the solution. So if you do find something, I'd take it because it looks ominously similar to my prob.
Jacques
Hi
i have experienced the exact same problem with my 8000 when switched on to radio it takes a few minuets to get sound and when put into standby sometimes it won't turn back on,
what is the correct way to power down, if it is turned off by the mains do you have to wait for it to reset itself when mains power back on.
marc
Try to reset the CPU: when in standby mode, press the standby button and monitor button at the same time. The middle display should show a T and and then TP (test passed). Put the Beomaster in standby and see if the issue has been solved.
My Beomaster 8000 would not operate the muting relay when turning on, leaving the speaker output silent. Did the reset and it began working normally again.
Vinyl records, cassettes, open reel, valve amplifiers and film photography.
Beomaster 8000 has no muting relay.It has two relays for soft-starting the amplifiers.It's not uncommon to see that a Beomaster 8000 won't switch the amplifiers back on right after beingput into standby. It will light up the displays but not power on the amplifiers.Put back into standby for 15-20 seconds and it will power up fine again. This is quite normal.
If you keep an eye on the signal meter and the MPX indicator, you will see they both flicker for sometime, 10-20 seconds, sometimes more, after pressing standby. This is also normal.
I've seen very few tuner faults in BM8000.Most were cracked solder joints around the interconnects and/or inadvertently pulled cables.One or two tantal failures and the too long bottom plate screw grounding a copper track, muting the whole thing.
Martin
I have tried the reset last night as you said but nothing happened, i turned on power this morning and all i got was 0 0 0 0 in display, could not get any response from anything i pressed, so i left it like that and went and had a cup of tea and when i went back it was off, no standby light or anything, so tried switching off mains power on and off but nothing no red standby light no clicking noise no power.
Check the low voltage power supply and also the voltage regulators at the right side cooling fin.Check also the interconnects and their solder joints between the display and processor boards, there aresome vital signals running through these rather flimsy connectors.
Which fuse blew ?
there's two t4 250v fuses fitted, its the one on the left hand side looking at the rear of beomaster.
i replaced the fuse again and the same thing i mentioned in last post happend again and same one fuse blown on left hand side.
Sounds like a shorted output stage and/or rectifier.
this being the case is it a costly fix
Hi everyone
if you have been reading this tread you would have seen the problems i'm having with my beomaster 8000, thanks to martin and others for there help on fault finding, however i'm out of my depth to fix so can anyone recommend someone to repair / service it. my location is s.wales u.k
Regards all
Hi to ALL
Could someone please help me with the right personal to repair my beomaster 8000, i had taken it to what used to be a b&o dealer in cardiff called Hinchley's but after a week they called me and said there was nothing they could do and said that the micro processors had gone then mysteriously they asked do i want it back.
So please advise on the right person to sent to.
Regards marc
Your welcome to send the master to Holland.....
But it will probably be costly for shipping.
I've finished a BM8000 this week after a throrough service of repairing all solder joints, trimmers, caps and all other thinkable issues.
This machine started to have some output stages problems (short circuit/blown) but shortly after that, many other weak points had to be taken care of.
You need either Tim Jarman or Martin Olsen to take a look. Tim had my 8000 just prior to me buying it 6 years ago and it has been faultless ever since.
If Tim can't or won't do it, then I'd send it to Martin, but the postage costs will be huge due to the weight.
Peter might be able to point you in Tim's direction.
Thanks for the info, i will try to contact peter to see if i get this done in the u.k , also thanks to beobuddy if i can't get it sorted then mabey i will ship .
Boy I guess I was wrong about BM8000 vs. the BC9500 on potential issues and the difficulty of diagnosis (I notice that a lot of the BM8000 issues relate to tiny fractures and cold solder joints rather than straightforward part replacements). So many threads lately with BM8000 issues and I'm near certain mine is operating on original caps and trimmers. Guess I will sell my 8000 (which is working perfectly at the moment, knock on fake wood) and hang on to the 9500. Wasn't sure which I was going to keep as I don't really have room for both and my BM7000 is there for use with my BL7000 (so I at least have one two-way device in the household). Here in the U.S. I don't think we have anyone on the level of the guys over there to just pack it up and send it to easily for those of us not gifted technically when it does break. Plus I have a theory with these that the shipping itself plays a big role in a lot of failures. So you get one thing fixed and hope that being jostled around in shipment doesn't loosen up something else.
Sad, I was looking forward to using it with my JBL speakers. And to me, the BM8000 is on the level of the BL5 in being such a watershed product for B&O at the time. No expense was spared and it's just SO beautiful.
Hi to all
Just like to update you all on the successful repair and full service to my beomaster 8000, after being told from B&O dealer and repair centre that their was know hope to repair my BM8000 i was gutted to say the least , then i was contacted by a friend who lead me to Olly King (STEP 1) who has done an amazing job on repairing and a full service to the BM8000, can't believe how good it sounds now its had full service etc, so Olly now comes super highly recommended for his services, and also a big thanks for all the help and info i've received from all you other guys on the forum.
Regards
Just happy I could help a fellow B&O enthusiast, it reminds me why I really enjoy repairing these hifi's, when someone comes back with such positive feedback - Cheers!