Hi all, Those of you with a BeoMaster 1600 could really help me! In the attached pic, is a gray wire with a red stripe. It is a co-axial wire. It's under the Tuning capacitor. The internal conductor was not connected anywhere, and the external sheath is grounded. It's other end becomes a yellow wire (gelb in the Service Manual), and goes to

Olly Are you designing your own ESR meter, or have you just got a bug to build your own from a kit? If the 2nd option, I can recommend the EVB ESR kit - a super unit - I use it every day for nearly 8 years already. Menahem

The speed is adjusted by one of the carbon trimmer potentiometers. If they're badly oxidized, you can get Cermet replacements from Mouser - Piher PTC10LV type, with the correct resistance value - my notes show 22K x 3, 4.7K x 2. Use 20K or 25K, and 5K substitutes. Then you'll have to calibrate them in the circuit. Menahem

Jacques, That's definitely another possibility. The key would be to check if the small motor is rotating in pulses - if NO rotation, the sensor is the problem; if there IS rotation, the bearing is the problem

Ok, this is definitely now the sensor I referred to before - the drum with the metal belt around it. Firstly, is the lamp working there? That lamp illuminates behind a metal slit, which moves laterally. When the metal slit lines up with the photo-transistor, the signal to operate the small motor occurs, and the arm advances. No lamp - no movement; or

And this - be careful of the parallax error on my camera - the number of wires matches the number of pins - I had to watch this also when I did the restoration on this.

Check these pics

John Please send your email address to me at yachadm AT gmail DOT com I will send you a bunch of clear hi-res pictures showing the connector positions on the PCB, so you can see if that's the problem. Menahem

jc Do not be under any illusions. Those Samwha capacitors are poor-quality, both in reliability and sound. They were chosen for one reason, and one reason only, and that was price. B&O today sells on its looks. Sound quality has become secondary - that is evident from the quality of the internal components. And that is a pity, because I'll bet

Jacques That is the original, virgin, untouched original factory-fitted LED! And, it's not critical whether it has an infra-red LED (factory-fitted), or a modern LED (per my modification) - in the appropriate circuit of course (Do not replace the infra-red with a modern LED - and you should not need to, anyway). Both LED's work equally flawlessly