Posts by jens m (archived)
59 total posts53 results
Beogram CD50 Laser
in The Workbench · Aug 15, 2009 18:09thanks menahem! i´m definatly no technician, just trial and error... very much trial and unfortunatly also much error... jens
Beogram CD50 Laser
in The Workbench · Aug 14, 2009 11:26hallo hansjöeg! es ist schwierig eine normale b&o werkstatt zu finden, die noch lust haben auf komponenten ebene zu reparieren und nicht nur ganze module auszutauschen.... das mit den spindelmotor reinigen und schmieren …
Beogram CD50 Laser
in The Workbench · Aug 9, 2009 19:11you´re welcome! for cleaning and lubeing you´ll have to disassemble the motor. after losening the small platter, where cd normally is clamped on, you can dismantle the motor from the chassis and then you´ll see, that the…
Beogram CD50 Laser
in The Workbench · Aug 9, 2009 05:04hi menahem! the laser and the motor are seperate. the laser is really robust in a metal casing and isn´t the first part, i would expect to fail. but the spindle motor is likley to need some good cleaning and relubbing, a…
Beogram 6000
in Deutsche · Jun 24, 2009 12:57hallo speedmaster! da hast du natürlich, daran hab ich jetzt garnicht gedacht, dass du ja natürlich am BM2400 phonoeingang doppelte riaa-entzerrung hast... eindeutig einmal zuviel😕. ja, die din-kabel sind schon mal gern…
Beogram 6000
in Deutsche · Jun 23, 2009 15:00hallo, also das mit dem brummen ist wahrscheinlich ein erdungsproblem, dass, da es mit aufsetzen der nadel verschwindet, evt. mit dem relais zusammenhängen könnte, das den ton von der nadel durchschaltet, sobald diese au…
BEOGRAM 4002
in Deutsche · Jun 22, 2009 03:15hallo dario! der 4002 hat normalerweise keinen eingebauten vorverstärker. das schwestermodell beogram 6000 hatte einen installiert, zusammen mit dem quadro-decoder auf einer kleinen platine unter dem tastenfeld. rein the…
Workshop MX3500 MX5500 LX5500 How to repair and test this TV , common faults
in The Workbench · Jun 11, 2009 13:30hello die bogener! two days ago my mx 4000 broke down and as i won´t get the spare parts til tomorrow (following your hints in the mx4000 thread), i started with my old mx3500, which broke down two years ago and wasn´t r…
mx 4000 schaltet sich selber aus
in Deutsche · Jun 8, 2009 17:25hallo an alle! vor zwei tagen hat sich mein mx 4000 zum ersten mal selber ausgeschaltet, nach erneutem einschalten lief er dann aber ganz normal... dann hat er sich immer, wenn man ihn zum ersten mal am tag eingeschaltet…
Beomaster 6000 with a fault in the power supply
in The Workbench · May 13, 2009 17:25hi ablaumeise! the poweramp has a protection circuit, which switches the beomaster back to stand by after some seconds, if there´s a fault in the power amp. it could well be, that that´s, what happens with your beomaster…
Beogram CD50 Schaltungänderung
in Deutsche · May 6, 2009 02:33hallo program! vorausgesetzt der mechanismus funktioniert mechanisch, sieht das so aus, als ob erkennt der cdspieler nicht, daß eine cd drin ist. dazu gibt es eine lichtschranke, die durch eine öffnung in der cdlade über…
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 25, 2009 03:34hi martin! no, it´s the right transformer, and as said after i replaced the caps, it worked perfectly for nearly two years, problems just came up last week. i think i will put the beogram off the desk for some days and g…
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 24, 2009 17:15hi martin! i measured voltage acros the sensor and it seems to work. when blocked, it reads out ca 15volts, otherwise it´s around 3 volts. the humming is rather constant and not once per revolution and starts as soon as …
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 24, 2009 16:23hi martin the tachodisc is a new one, steel, i´ve got it from you. my new observation is, that when the gram is plugged to the mains, it turns backwards for a second, then becomes slower and turns then the right way roun…
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 24, 2009 05:53i double checked and resoldered all connectors and measured through the ribbon cable between processor and mainboard. everything seems ok here. then i started renewing transistors and the op-amp in the drive circuit, by …
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 23, 2009 18:35hi martin, sorry, i mistook c27 on the mainboard and c27 on processor board and was mixing up all a bit😳 yes, i exchanged the 2200μF and connected minus towards c20 minus to close the gap due to the missing connection w…
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 23, 2009 13:48hi martin! i haven´t had your cap kit, only your tachodisc and took caps from the shop around my corner. i replaced the 47μF cap inside the metal shielding of the cpu, according to the service manual it´s C28; minus is c…
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 23, 2009 12:09latest news: with the sub- and upper platter the beogram spins as soon it is connected to the mains, when play is pressed the tonearm moves to the startpoint and after a bit longer than usually the platter reaches stable…
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 22, 2009 16:15beam me up, scotty!😕
beogram 6006 platter not moving, coils are humming
in The Workbench · Apr 22, 2009 15:45hi martin! i´ll try with the upper platter tomorrow, perhaps i´m lucky and it will run smooth then, but this afternoon the fuse went off again, so i think, there´s still a problem... i ran out of fuses and have to get an…