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F low Chart of Troubleshooting
7-5. Microphone Part
M icro p h o n ed o e sn o t w o rk
Isth ea s s e m b le ds ta tu so f
m icro p h o n eO .K ?
C h e c k th ere fe re n cevo lta g eo nM icp a th
Ism ic ro p h o n eo k ?
Y e s
Y e s
C 4 0 1>2 .5 V
Y e s
Y e s
E N D
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N o
R e a s s e m b leth em icro p h o n e
N o
S o ld e r th em icro p h o n ea g a ino r
R e p la cea ro u n dM icC ircu it
(C 4 0 3 , C 4 0 7 , R 4 0 7 , R 4 1 1 .....)
N o
7- 8
C h e c k U 3 0 0
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