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1.11.3 Checking Flow
Turn On the Music
Check the voltage level
of TP1 & 2 = VBAT ?
Check the signal of TP3
& 4 bias above 200mV
Check component status
(C712, C713, C714, C715,
R705, R711, R706, R710)
Check the Level of
TP5 & 6 = High ?
Check the signal of
TP7 ~ TP10
Check the Contact of
Speaker
Try again or Change PCB
Start
YES
YES
YES
YES
YES
NO
Check the Battery
Check U401 (MT6229AT)
NO
status
NO
Check U401 (MT6229AT)
status
NO
Re-solder
L710, L711, L712, L713,
NO
Re-assemble or replace
Speaker
-75-
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