![background image](http://html.mh-extra.com/html/samsung/sgh-n620e/sgh-n620e_service-manual_1190933024.webp)
SAMSUNG Proprietary-Contents may change without notice
SGH-N620E Flow Chart of Troubleshooting
7-3
This Document can not be used without Samsung's authorization
Downloading SW is
OK??
(IS CSROM signal
OK?)
After power on,
check and repair the important
signals of U209 as follos
The node between
R217 and C212 =
"H" (RST)
Check the circuit
related to reset
Yes
R234 = "H" (MSIZE)
Resolder R234
Resolder R233
No
No
No
Yes
Yes
END
R221 = "H" (BOOT)
R233 = "L"
(EXTPROC)
Resolder R221
Check all the other
connection by thes S/W
Yes
No
No
Replace PBA
Check the circuit around
LCD
Check the circuit around
U300(EEPROM) and data
stored in it
' Power On ' does not work