HA
Posts by HatOfTheCat
27 total posts

18 results

Beomaster 1000 - Type 2301 bias setting
in BeoMaster · Dec 28, 2024 23:52 GMT

I have Beomaster 1000 (Type 2301) that after some months of use I've finally got round to recapping. I'd also like to check and set the bias current but am scratching my head slightly. The service manual instructions are…

Beomaster 1000 - type 2301 (white key) - bias setting
in BeoMaster · Dec 28, 2024 23:18 GMT

I have an early "white key" Beomaster 1000 (Type 2301) that after some months of use I've finally got round to recapping. I'd also like to check and set the bias current but am scratching my head slightly. The service ma…

Beomaster 1000 - white key - replacement transformer ?
in BeoMaster · Oct 12, 2024 20:46 GMT

PS When I received the receiver it had its transformer wired for 220v. The receiver coped with that even though that means it must have been pumping out approx. 2v above the 29.5v it is now. I swapped the connection poin…

Beomaster 1000 - white key - replacement transformer ?
in BeoMaster · Oct 12, 2024 20:34 GMT

My Beomaster 1000 - Type 2301 has a bit of buzzy transformer, a physical buzz that transmits through the case to whatever its sitting on (NOT a speaker hum). This seems likely to be degradation of the transformer. I've t…

Beomaster 1000 - stereo decoder board compatibility
in BeoMaster · Oct 12, 2024 19:34 GMT

Well after using the later version 0001 decoder board happily for 2 months it then decided to stop switching on the STEREO lamp, decodes okay but the circuit part on the board that triggers the lamp has failed somehow. T…

Beomaster 1000 - stereo decoder board compatibility
in BeoMaster · Aug 17, 2024 18:10 GMT

FIXED AND WORKING Was nothing wrong with the IF stage, it was just the decoder board that was not working properly. I recapped the decoder board I have from a later Type 2317 and swapped that in (it had several obviously…

Beomaster 1000 - stereo decoder board compatibility
in BeoMaster · Aug 13, 2024 16:25 GMT

I'm certainly not going to dive into attempting an alignment Martin as I have neither the skills nor equipment to do one. However just to confirm, would need for alignment not have other symptoms such as poor reception e…

Beomaster 1000 - stereo decoder board compatibility
in BeoMaster · Aug 10, 2024 21:20 GMT

FIXED I'm working on a Beomaster 1000 - type 2301 (white key, Danish market version with Danish radio station names on dial instead of channel numbers). The only thing not working nicely now is the FM stereo decoding. Th…

Beomaster 1000 - type 2301 - how to remove front panel for bulb replacement
in BeoMaster · Aug 5, 2024 15:34 GMT

EDIT: worked out didn't need to remove the front panel but instead the frame bar running behind the tuner dial that the blocks of button keys are screwed too also. So answer no longer needed I'm trying to remove the fron…

Beomaster 1000 - white key version with Danish tuning dial
in BeoMaster · Aug 1, 2024 18:00 GMT

Stroke of luck. The original serial number label with type number was wedged under the edge of the schematics envelope. So its a Type 2301

Beomaster 1000 - white key version with Danish tuning dial
in BeoMaster · Jul 25, 2024 21:54 GMT

I've just bought an "interesting" Beomaster 1000 off evilBay with white keys but also has Danish radio station names marked on the tuning window rather than just the usual two lines of channel no.s and MHz. Was cheap and…

Beomaster 901 - missing left channel - **FIXED**
in BeoMaster · Apr 8, 2024 19:22 GMT

FIXED - cracked solder joint on emitter of the TR22 output transistor (BD697 type). The heat sink on this model is held onto the metal frame of the case by just two screws, one at each end of which the one at the left en…

Beomaster 901 - missing left channel - **FIXED**
in BeoMaster · Apr 7, 2024 09:13 GMT

Having managed to restore one 901 I foolishly acquired another broken pony. This one has no sound from left channel. Its all original inside and no signs of leaking or burst capacitors. Before buying fresh capacitors etc…

Beomaster 901 stereo light not working - FIXED was weak FM aerial signal
in BeoMaster · Mar 26, 2024 14:54 GMT

Thanks for your reply Dillen Problem fixed !! :) First thanks for confirming that the Stereo green light should ONLY come on with a stereo station (NOT with other sources, I was misled by another old thread into thinking…

Beomaster 901 stereo light not working - FIXED was weak FM aerial signal
in BeoMaster · Mar 25, 2024 21:58 GMT

Update. "2C56 capacitor was originally a tantalum one?" - yes, I got a service kit from Beoparts and replaced ALL the tantalum ones except two 4.7uF ones that I couldn't easily access as they are under the volume capstan…

Beomaster 901 stereo light not working - FIXED was weak FM aerial signal
in BeoMaster · Mar 24, 2024 21:30 GMT

genesis wrote: "if you have 0v at the base then the light is not turned on. have you tried to remove the transistor and measure the base voltage again (to see if the transistor is not base/emitter shorted) you can even m…

Beomaster 901 stereo light not working - FIXED was weak FM aerial signal
in BeoMaster · Mar 24, 2024 07:15 GMT

The green stereo light on my Beomaster 901 does not light up at all. This is last job left in refurbishment of what was a pretty much dead receiver (have rebuilt BOTH power amplifier stages due to multiple failed transis…

Beomaster 901 tuning cord
in BeoMaster · Feb 9, 2024 08:52 GMT

I'm restoring a Beomaster 901 and the tuning cord has completely slipped off the drum of the tuning capacitor and looks like a little plastic pin that the spring on end of the cord went over has snapped off. Does anyone …