[RPi4] Burnt out component, how to diagnose and replace
crwdns2934249:0crwdne2934249:0:
My Raspberry Pi 4 8GB v1.4 stopped drawing power recently.
I would plug it in to a battery bank, the red led would briefly flash, then turn off. The battery bank would report that no power was being drawn.
I eventually got it to accept power again, but the corner of the PCB near the USB 2.0 ports became very hot, and there was the telltale smell of components burning.
I think the large smd diode(?) near the USB 2.0 ports is to blame, but I'm not sure.
Can anybody help me find out what components are broken, and how to go about replacing them.
[RPi4] Burnt out component, how to diagnose and replace
crwdns2934249:0crwdne2934249:0:
My Raspberry Pi 4 8GB v1.4 stopped drawing power recently.
I would plug it in to a battery bank, the red led would briefly flash, then turn off. The battery bank would report that no power was being drawn.
I eventually got it to accept power again, but the corner of the PCB near the USB 2.0 ports became very hot, and there was the telltale smell of components burning.
I think the large smd diode(?) near the USB 2.0 ports is to blame, but I'm not sure.
Can anybody help me find out what components are broken, and how to go about replacing them.
[RPi4] Burnt out component, how to diagnose and replace
crwdns2934249:0crwdne2934249:0:
My Raspberry Pi 4 8GB v1.4 stopped drawing power recently.
I would plug it in to a battery bank, the red led would briefly flash, then turn off. The battery bank would report that no power was being drawn.
I eventually got it to accept power again, but the corner of the PCB near the USB 2.0 ports became very hot, and there was the telltale smell of components burning.
I think the large smd diode(?) near the USB 2.0 ports is to blame, but I'm not sure.
Can anybody help me find out what components are broken, and how to go about replacing them.
[image|3412042]
[RPi4] Burnt out component, how to diagnose and replace
crwdns2934249:0crwdne2934249:0:
My Raspberry Pi 4 8GB v1.4 stopped drawing power recently.
I would plug it in to a battery bank, the red led would briefly flash, then turn off. The battery bank would report that no power was being drawn.
I eventually got it to accept power again, but the corner of the PCB near the USB 2.0 ports became very hot, and there was the telltale smell of components burning.
I think the large smd diode(?) near the USB 2.0 ports is to blame, but I'm not sure.
Can anybody help me find out what components are broken, and how to go about replacing them.
[image|3412042]