Sony KD-43X7 F Series Service Manual page 66

2018/05/04 04:12:02 (GMT+09:00)
3.12 HDMI No Picture
3.12.3 HPD Failure Analysis – HDMI2
Failure Analysis
Check impedance of
Resistor during AC OFF
HDMI2: R4043
[NG] Resistance
≠4.7 Ω
Replace Broken
Resistor and Re-verify
[OK] Picture recovered
HPD
[OK] Resistance
[NG] No Picture
END
TV Business Division
Checking condition:
- TV ON & HDMI Source ON except if the flow mentioned is AC OFF.
- TV HDMI input connected to HDMI source (Player etc.)
- TV Input Selection: HDMI
Check HPD GPIO Line
≈ 4.7 Ω
impedance to Ground
during AC OFF
HDMI2: R4043*
[NG] Impedance not Open (High Z)
Internal Main IC (SoC)
Broken (IC5000)
Replace B-Board
and Re-Verify
*Please refer page 67 for actual measuring points
[OK] Impedance ≈ Open (High Z)
Go to
"I2C Failure Analysis"
Page
(Supplementary
information)
66
SYS SET