Earphone Part - Samsung SGH-J200 Service Manual

Flow Chart of Troubleshooting

9-7. Earphone Part

Earphone does not work
R512, R517 ≥ 100mV?
(When MP3 file is played)
U502 pin 16, 8 ≥ 100mV?
(When MP3 file is played)
U502 pin 16, 8 ≥ 200mV?
(When MP3 file is played)
Check the circuit
from IFC600 pin 5, 6, 7
IFC600 pin 5, 7 short?
Is Earphone working?
Yes
Yes
Yes
Yes
to U502
OK
Yes
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Check UCP300
No
Resolder U502, R512, R517
No
Not OK
Resolder L602, L603
No
Resolder IFC600
No
Replace the Earphone
9-12
Resolder U502