Sony KDL-32W600D Service Manual page 68

2023/11/28 13:25:38 (GMT+09:00)
3-3-11. HDMI No Picture – Continue (b)
1. HDMI NO PICTURE
Main Flow Continue
R3608 (SCL) & R3610 (SDA)
R3618 (SCL) & R3617 (SDA)
[OK] Impedance = 100Ω
Check voltage of SCL & SDA line
Pin15 (SCL) Pin 16 (SDA) @ CN3601
Pin15 (SCL) Pin 16 (SDA) @ CN3600
[OK] Vdc = 3.5 ~ 5.5V
Check voltage @ TMDS lines
Pin1,3,4,6,7,9,10 & 12 @ CN3601
Pin1,3,4,6,7,9,10 & 12 @ CN3600
[OK] Vdc = 2.6 ~ 3.475V
Replace B-board & re-verify
Escalate this issue to Authorize
Service Centre(ASC)
Check impedance of
series resistor
at SCL & SDA
during AC OFF
HDMI1:
HDMI2:
HDMI1:
HDMI2:
HDMI1:
[NG] Vdc ≠ 2.6 ~ 3.475V
HDMI2:
END
Series Resistor Broken
[NG] Impedance ≠ 100Ω
Replace → Re-verify
[NG] No picture
[NG] Vdc ≠ 3.5 ~ 5.5V
"I2C Failure Analysis"
"TMDS Failure Analysis"
Checking condition:
- TV ON & HDMI Source ON except if the flow mentioned is AC OFF.
- TV HDMI input connected to HDMI source output
- TV Input: HDMI
[OK] Picture recovered
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SYS SET