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  • Re: MX7000 CRT - No Power

    That does seem rather sinister.It's possible that the casing of the deflection/eht transformer is cracked,but it's unusual.You need to take GREAT care here,in handling the transformer,as the final anode connection of the crt retains a charge voltage even when the set is unpowered. It's also unlikely that you will be able to source another transformer other than a salvaged item. Are you confident that the soldering of C102 and the printed circuit around it is sound?Arcing here will cause
    Posted to The Workbench (Forum) by solderon29 on Thu, Jan 17 2019
  • Re: Beogram 3500 tracking setup

    You need to try another pick-up!!! In my experience,this machine is very reliable,and what you describe,has all the symptoms of a faulty p.u. Can you return it ? Nick
    Posted to General Discussion & Questions (Forum) by solderon29 on Tue, Jan 15 2019
  • Re: Beomaster 1200 parts?

    no alas,but ever the optimist I expect one will turn up someday. It's quite a complex moulding too,so tricky to fabricate another. Good luck with your search too. Nick
    Posted to BeoWorld Private Wanted (Forum) by solderon29 on Sun, Jan 13 2019
  • Re: Beogram 3500 tracking setup

    It seems as though you may have a problem with the pick-up?The stylus suspension becomes stiff with age and less compliant than it needs to be. Can you try another pick-up?Is the tracking weight correct?Are the chassis transit screw's fully released? The pick up follows the groove across the record,and as it tracks,it operates an optical sensor which triggers the carriage servo motor to drive the arm inwards,and keeping the pu arm roughly in paralell with the indicator arm next to it.You should
    Posted to General Discussion & Questions (Forum) by solderon29 on Sun, Jan 13 2019
  • Re: Beocenter 7700

    Indeed,as above,but also it's worth checking the turntable motor.The bearings may well have dried out with age,so that as the unit warms up the bearing's free up and the turntable runs faster. You can download a strobe disc from the 'net,so that you can monitor the speed at start up from cold etc. Nick
    Posted to General Discussion & Questions (Forum) by solderon29 on Sun, Jan 13 2019
  • Re: MX7000 CRT - No Power

    These are sophisticated telly's which have a "powerfail" self check system at start up.All the data comms and supplies are checked,and if found to be below par,the set will revert to standby to protect itself.the manual details how these systems can be checked,but it's worth checking a few "usual suspects" before getting too deep into faultfinding. The components you have replaced already are in that list,but also it's worth checking C12,which is a blue cased 6n8 capacitor
    Posted to The Workbench (Forum) by solderon29 on Fri, Jan 11 2019
  • Re: Help: Motorbase MB 4102 without BAng & Olufsen

    Yes indeed,that all seems possible.The B&O upc module can be unplugged.The servo motor drive is the usual bridge circuit driven on way or tother for direction. e.mail me if you need the circuit diagram? Nick
    Posted to General Discussion & Questions (Forum) by solderon29 on Thu, Jan 3 2019
  • Re: Help: Motorbase MB 4102 without BAng & Olufsen

    Sadly,It seems as though this isn't possible I've rigged it all up with my motor and a MCL transceiver,but to no avail. I had hoped that the upc in the transceiver would convert the codes and communicate with the upc in the motor. Originally of course,the inteliigence was in the tv upc for the stand/base operation. I'm assuming too,that my motor is serviceable?I don't have a compatible tv anymore,to test it with. The pin out of the plug is Pin 1:12-15v @350mA(supply+)Pin 2:Supply
    Posted to General Discussion & Questions (Forum) by solderon29 on Wed, Dec 26 2018
  • Re: Beosound 3200 laser replacement fitting issues

    I wasted a lot of time over so called "direct replacement" laser's for this chassis! It's rumoured that B&O bought up the last of the stock of these items when Philips(the maker's) ceased production,so it's a bit "hit n miss" when sourcing replacements.Occasionally I found a good one,but mostly not!!! I think they are being made again now though,as pattern parts?They were employed in other brands of cd player,and many owners are keen to restore their players
    Posted to General Discussion & Questions (Forum) by solderon29 on Mon, Dec 24 2018
  • Re: Beosound 3200 laser replacement fitting issues

    Is your cd mech a type VAU1255(see label on end of cd chassis)?If so,it's quite likely that the replacement laser assembly is incompatible or actually u/s!!! There is a subtle difference between the laser's that B&O used and most of the replacements that are currently available. If you e.mail me,I can give you details of someone who can either supply the correct laser,or repair the mechanism if you send it to him(U.K.) Nick
    Posted to General Discussion & Questions (Forum) by solderon29 on Mon, Dec 24 2018
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