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These four components make up the
analog amplifier stage of melody.
C209, R213, C211, R215
R227
R222
The Power for digital part of the
melody IC. The voltage is 2.8V.
It is from the PMIC(ADP3408, U101)
The circuit diagram of the part of the melody IC. Refer to the page 2 of the complete circuit diagram for
detail.
This is the melody IC.
U203
The Power for analog part of the
melody IC. The voltage is 3.3V
C221
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4. TROUBLE SHOOTING
To the speaker at LCD
module via CN301.
U205
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