(Supplementary
information)
TV Business Division
63
3.12 HDMI No Picture
3.12.2 +5V Power Failure Analysis – HDMI1 and HDMI3
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
+5V Power
Failure Analysis
Check impedance of
Varistor during AC OFF
HDMI1:
VR4010
HDMI3:
VR4009
[OK] Impedance ≈ 100kΩ ±5%
[NG] Impedance ≠ 100kΩ ±5%
END
Go to
“HPD Power Failure Analysis“
Page
Replace Broken Varistor
and Re-verify
[OK] Picture recovered
[NG] No picture
Check impedance of
Resistor during AC OFF
HDMI1: R4025
HDMI3: R4024
[NG] Impedance ≠ 1K Ω
[OK] Impedance ≈ 1K Ω
Replace Broken Resistor
and Re-verify
[NG] No picture
[OK] Picture recovered
SYSSET
2018/05/0404:12:02(GMT+09:00)