Hey folks...
I have accepted a work for a client, he came over with this Philips Streamium
a compact stereo with a Class D amplifier that was dead.
Fixed the powersupply in the unit a dried out capacitor on the primary
caused it not to start switching fixed that, now the powersupply works
all the voltages on secondary is correct 2.2 - 3.2 - 5 - 9 - 12 - 30V etc.
But the unit fails to boot all i get is a white screen for 10sec then i will see the clock symbol --:-- for 5sec then it goes in sleep sort of the background illumination remains on and it behaves strangely no responce from any keys neither remote.
I did esr check all the capacitors after this no problems but still not
my favorite brand CapXon urrrgh but all are fine on the ESR meter
doubt changing them will make a difference.
I also noticed if i take the voltage up slowly through the Variac from 0-110-120V (230V mains in sweden) then it boots up to an "emergency firmware restore" function it gets an IP address 192.168.88.28 but it tells me
no internet, strange all other equipment is going on the same network through
a MikroTik router. Start thinking could this one block the ports needed for it
shall try again tomorrow.
But me personally i believe that the firmware on this device is corrupt, it has a JTAG header so if i can obtain a firmware i could flash it. I also looked to see if it has a serial flash that i could remove and flash too.
Included the Servicemanual if someone might think of something i missed lol
I have accepted a work for a client, he came over with this Philips Streamium
a compact stereo with a Class D amplifier that was dead.
Fixed the powersupply in the unit a dried out capacitor on the primary
caused it not to start switching fixed that, now the powersupply works
all the voltages on secondary is correct 2.2 - 3.2 - 5 - 9 - 12 - 30V etc.
But the unit fails to boot all i get is a white screen for 10sec then i will see the clock symbol --:-- for 5sec then it goes in sleep sort of the background illumination remains on and it behaves strangely no responce from any keys neither remote.
I did esr check all the capacitors after this no problems but still not
my favorite brand CapXon urrrgh but all are fine on the ESR meter
doubt changing them will make a difference.
I also noticed if i take the voltage up slowly through the Variac from 0-110-120V (230V mains in sweden) then it boots up to an "emergency firmware restore" function it gets an IP address 192.168.88.28 but it tells me
no internet, strange all other equipment is going on the same network through
a MikroTik router. Start thinking could this one block the ports needed for it
shall try again tomorrow.
But me personally i believe that the firmware on this device is corrupt, it has a JTAG header so if i can obtain a firmware i could flash it. I also looked to see if it has a serial flash that i could remove and flash too.
Included the Servicemanual if someone might think of something i missed lol