3.7.4 HPD Failure Analysis – HDMI1 and HDMI3
60
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
HPD
Failure Analysis
END
Replace Broken
Resistor and Re-verify
[OK] Picture recovered
Check impedance of
Resistor during AC OFF
HDMI1: R4016, R4019 and R4022
HDMI3: R4015, R4018 and R4021
[NG] Any of the part as below
R4021, R4022≠ 4.7KΩ
R4015,R4016, R4018, R4019≠ 1KΩ
[OK] All part as below
R4021, R4022 ≈ 4.7KΩ
R4015,R4016, R4018, R4019
≈ 1KΩ
Check HPD GPIO Line
impedance to Ground
during AC OFF
HDMI1: R4019*
HDMI3: R4018*
Replace B-Board
and Re-Verify
Internal Main IC (SoC)
Broken (IC5000)
Go to
“I2C Failure Analysis“
Page
[NG] No Picture
*Please refer page 10 for actual measuring points
[OK] Impedance ≈ 100kΩ ±5%
[NG] Impedance ≠ 100kΩ ±5%
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