Receiver Part - Samsung SGH-E330N Service Manual

7-8. Receiver Part

Receiver does not work
U603 pin 9, 13 = 1.5V?
U603 pin 1 , 5 = 1.5 ?
EAR600 pin 4 , 5 = short ?
HDC700 pin 40 , 4 2 = 1.5V ?
SPK +, - PAD = 1.5V?
Check the soldering of the
speaker wire
Is Receiver working?
Y e s
Y e s
Y e s
Y e s
Y e s
Y e s
Y e s
Y e s
END
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No
Resolder or replace U603
No
Resolder or replace U603
No
Resolder EAR600
No
Resolder HDC700
No
Cange LCD module
No
Modify the speaker wire soldering
No
Replace the Receiver
7- 15
Flow Chart of Troubleshooting