BCM 400 not power up

[hemsanda22]

I have one BMC 400 Rls 3.7 standerd system with 2 DSM 32 & 1 DTM module.This system was installed 3 years before & worked fine till last weak.
It suddenly started to rebooting & now its not power up.
When I switch on the system, only power light is on with red colour.
I cleaned the tatal system replaced the power supply unit, Power cable but no luck.Tried to power on without MBMs it giving same thing.
Any idea?

 

[snowman50]

Check your base function tray for faulty capacitors.
or replace it to see if it powers up,

 

[biv343]

could be a failed power supply as well. if you lose either the 12V or 5V side of the PS, the system can exhibit those symptoms.

 

[gberger]

Remove all 3 modules from the bcm and power on with no modules in.It could be a faulty module that is causing the problem(happened to me twice..)If the bcm restart, power off put 1 module and power on again until you find the faulty module.In my case twice it was a Dsm32+.