Beocenter 9000

20th May 2016

No signs of life were present in this Beocenter with even the red standby light out when power was applied. The supply 5V to the microprocessor section was low at 4.3V with a large amount of ripple present so the voltage at the output of the bridge rectifier 62D7 was checked and found to be around 4.5V instead of the correct 13V. Since there was no overheating apparent 62C17 (10,000uF) was suspected of being open circuit but upon inspection it was discovered that the soldering around this component’s centre pin was cracked. Resoldering this point brought the set back to life with no further attention required. [Beocenter 9000, Beocenter 9500, Beocenter 8000, Beocenter 8500]