Hi guys, I need help here
I have Acer D270 with no 3V and 5V ALW output.
When I plug the power adaptor, no Current was drawn.
There is no 3.3V in power button.
I'm focusing at RT8223M, already check voltage in each input/output pin
Pin 16- VIN = 18.88V
Pin 13 - EN =6.15V
Pin 18 -ENC = 3.3V
Pin 3 - REF = 2V
Pin 8 -VREG3 = 3.3V
Pin 17 - VREG5 = 5V
Pin 1 = ENTRIP1 = 0.99V
Pin 6 = ENTRIP2 = 0.5V
Pin 19 =LGATE1 = 5V
Pin 12 = LGATE2 = 0V
Pin 21 = UGATE1 = 0V
Pin 10 = UGATE2 = 0V
Any suggesion where to check?
already replace the ic RT8223M, but no result
Mayb ENTRIP2 is to low?
Link to schematic - https://www.badcaps.net/forum/showthread.php?p=1263291
.
I have Acer D270 with no 3V and 5V ALW output.
When I plug the power adaptor, no Current was drawn.
There is no 3.3V in power button.
I'm focusing at RT8223M, already check voltage in each input/output pin
Pin 16- VIN = 18.88V
Pin 13 - EN =6.15V
Pin 18 -ENC = 3.3V
Pin 3 - REF = 2V
Pin 8 -VREG3 = 3.3V
Pin 17 - VREG5 = 5V
Pin 1 = ENTRIP1 = 0.99V
Pin 6 = ENTRIP2 = 0.5V
Pin 19 =LGATE1 = 5V
Pin 12 = LGATE2 = 0V
Pin 21 = UGATE1 = 0V
Pin 10 = UGATE2 = 0V
Any suggesion where to check?
already replace the ic RT8223M, but no result
Mayb ENTRIP2 is to low?
Link to schematic - https://www.badcaps.net/forum/showthread.php?p=1263291
.
Comment