hi Glitch, Christian and Quattttro’
I own a BM 6000 for the last 6 years, since I bought it in 2018, it exhibits the same fault as yours.
The fault is “ambient temperature dependant” and I still have not fixed it.
When I power it manually (I do not have the remote control) only random symbols light up on display but will not come alive, nothing works, it will power off if I press the off button, but I noticed that it will power up and function well in warm weather, when room temperature is above below 25 Celciurs it will power up and function well, so when winter comes, overnight room temperature drops down to below 20 degree celciurs it will not power up next morning, after using a hair dryer to heat up the microprocessor board, under the display, it will power up all and off all day, as it warms up internally. But next morning, need to heat it up with hair dryer again for a couple of minutes, to make it function.
I am tired of doing this and want to fix it, I may replace capacitors in CPU board and re-solder suspect solder joins. I believe I need to take precaution and strap my wrist to the chassis and to bench surface, this I am not familiar with.
I hope the above info is useful to you or to anyone, as I found out the above facts, by accident.
I am well versed in Analog audio electronics but not in Digital electronics, I was trained in early 70’s and remember learning Digital circuits “gates” but have vague knowledge about Microprocessors.
Jorge the Radio Tradesman
