Samsung GT-C3322 Metro Duos FM RADIO not Working Solution

 Samsung GT-C3322 Metro Duos FM RADIO not Working Solution Schematic , Diagram, Circuit

 Samsung GT-C3322 Metro Duos FM RADIO not Working Solution Step by Step 

Step 1

Earphone Deteced?

Resolder L303, UCP300 and Neighboring Circuits.

Step 2

No SOUND?

(Earphone mode

Loud mode)

Resolder

Earphonemode:

C146,C233,C234,R216,R217,R302,R304,L301,L302

C301

Loude mode:

C146,C233,C234,R216,R217,L307,L308,C30

Step 3

C141, C148 = 2.8V ?

 Check UCP200

Step 4

Change U104 and

Resolder Neighboring Circuits.

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