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19. Audio problem
Int Speaker works?
Audio
N
19/30
Y
Head phone works?
N
Y
SPK_OFF = low?
N
Y
Check U510
Int Mic works?
N
Y
Ext Mic works?
Y
N
Check L42,L41,C277,MIC1
U25 1,9pin = 3.3V
N
Y
VA = 5V?
N
Y
Check R230,C267,C268
Check L509
X3 = 24.576MHz?
N
Y
Check U25
Check
X3,R222,C240,C260
Check
Speaker,R211,R221,C244,
R216,R205,J9
Check
J10,L515,L516,C570,C582,
U24,C243,C237,VR501,L520,
L514,C632,R609,Q34,R231,
Q35,R622,Q504,U25
Check
J11,L517,L29,C600,C599,
C562,R618,R623
Содержание PC-AX40
Страница 51: ...PARTS LAYOUT 1 M B COMPONENT SIDE ...
Страница 52: ...SOLDER SIDE 2 M B ...
Страница 53: ...COMPONENT SIDE 3 DD ...
Страница 54: ...SOLDER SIDE 4 DD ...