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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-10
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2) No Sound on Calling
No sound on calling
C520 Both side
output exist?
NO
Check U502, HEA700,
MIC (on Key FPCB)
and neighboring circuit
YES
PCM_CLK(TP)
output=exist?
NO
Check U503
and neighboring circuit
YES
SPK500 1,2 pin
output is differential?
NO
Check U505
and neighboring circuit,
changed Speaker module
assay
YES
END