ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Good morning
I have a dead Beolab 7.1, no stand-by led; the switching unit (PCB number 5) actually is connected only to the main power, no load is connected and the 5V is present; changed a 100uF capacitor because it was swallen. Now I want to make a test before riconnect all the PCB and checking on the block schematic there is the HT_ON_OFF input active at 1. My question is the value of the voltage needed to switch on the power supply. I think it is the 5V but a confirmation is appreciated .
SO if the unit goes on I can move to find the fault in some other PCB
Thanks Eugenio
Hello
Reconnected everything and now the unit goes in stand-by (red led). Connected via powerlink to a Beosound Ouverture but the led turn on to Orange...
Any help is appreciated, continuing test
Still investigating
The fault comes from one filter PCB, disconnecting it the unit power on (green led) and one channel is working. The NTC are ok but on the "faulty" channel there is the P12 connector (the male one on the pcb) that is rotated respect the P12 on the working filter.