Ring Indicator - Samsung SGH-Q100 Service Manual

SGH-Q100 Flow Chart of Troubleshooting and Circuit Diagram

5-8. Ring Indicator

Ring Indicator does not work
Check the connection between
CN201 and LCD-Keypad PCB
Check the Q601 pin 2 is
"High"
Check the Q601 pin 3 is
"Low"
Check the voltage of
LED601 Anode is
around 3.7.
END
Y
Y
Y
Y
Y
SAMSUNG Proprietary-Contents may change without notice
N
Replace Q601
N
Resolder or change LED601
N
5-8
Check U601