Sony KD-49X7 D Series Service Manual page 83

DPA-PWB
(1) PVDD-GND short check
Measure impedance between PVDD and GND at
capacitor C3249.
If impedance is <100Ω → NG
(2) LDO out short check
Measure impedance between +3.3V and GND at
C3248
If impedance is <100Ω → NG
(3) Fuse open check
Measure impedance of fuse
F3201 5A (12.5V or 19.5V)
F3201
If fuse open → NG
C3249
C3248
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