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4. TROUBLE SHOOTING
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
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4.10 Microphone Trouble
TEST POINT
Figure 4.10.1
2. TROUBLE SHOOTING
C230
R212
C231
R213
C215
CIRCUIT
10u
C231
DNI
C203
C204
DNI
39pF
C206
C215
0.033uF
MIC201
SUMY0007102
2
1
C222
39pF
C224
39pF
10
2
A
V
R210
2.2Kohms
R211
1Kohms
VMIC
100ohms
R212
R213
100ohms
R214
2.2Kohms
C229
39pF
20
2
A
V
0.033uF
C230
MIC_P
MIC_N
(10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP)
ECCH0005604
MIC