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2019/01/30 02:46:26 (GMT+09:00)
6.7.6 TMDS Failure Analysis
Checking condition:
6.7.6 TMDS Failure Analysis – General Checking
- 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
TMDS
Failure Analysis
Check I2C GPIO Line impedance
Check impedance of
[OK] Impedance ≈ 0±5Ω
[OK] Impedance = Open (High-Z)
to Ground during AC OFF
CMF (Filter)during AC OFF
HDMI1: CN4001 – Pin1,3,4,6,7,9,10,12
HDMI1:L4000,L4001
HDMI2: CN4000 – Pin1,3,4,6,7,9,10,12
HDMI2:L4002,L404
[NG] Impedance ≠ Open (High-Z)
[NG] Impedance ≠ 0Ω±5Ω
Internal Main IC (SoC)
Broken (IC5000)
[NG] No Picture
Replace Broken
Résistor and Re-verify
Replace B-Board
[OK] Picture recovered
and Re-Verify
END
76
SYS SET
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