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3.3 No Sound Power Off Check
BCH-PWB
C3244
F3200
C3243
PVDD-GND short check
(1)
Measure impedance between PVDD and GND at
capacitor C3244.
After a few minutes waiting,
if impedance is <100Ω → NG
(2) 3.3V short check
Measure +3.3V voltage at C3243.
If voltage is < 2.7V → NG
(3) Fuse open check
Measure impedance of fuse F3200 5A .
If fuse open → NG
45
(Supplementary
information)
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