Sony KD-43X7 F Series Service Manual page 61

2018/05/04 04:12:02 (GMT+09:00)
3.12 HDMI No Picture
3.12 HDMI – No picture – General Checking (Continued)
resistor at SCL&SDA during AC OFF
[OK] Impedance ≈ 100Ω±5%
[OK] V = 3.5 ~ 5.5V
I2C
[OK] V = 2.6 ~ 3.5V
TMDS
Continue..
Check impedance of series
HDMI1: R4004 & R4007 (I C)
2
HDMI2: R4005 & R4008 (I C)
2
HDMI3: R4003 & R4006 (I C)
2
[NG] V
Check voltage of SCL&SDA line
HDMI1: CN4001 – Pin 15 & 16
HDMI2: CN4002 – Pin 15 & 16
HDMI3: CN4000 – Pin 15 & 16
Check voltage of TMDS line
[NG] V
HDMI1: CN4001 – Pin1,3,4,6,7,9,10,12
HDMI2: CN4002 – Pin1,3,4,6,7,9,10,12
HDMI3: CN4000 – Pin1,3,4,6,7,
9,10,12
Replace B-board &
re-verify
Escalate this issue to
R&D team
END
TV Business Division
[NG] Impedance ≠
Series Resistor Broken.
Replace → Re-verify
100 Ω±5%
[NG] No picture
≠ 3.5 ~ 5.5V
I2C
"I2C Failure
≠ 2.6 ~ 3.5V
TMDS
"TMDS Failure
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
[OK] Picture recovered
Go to
Analysis"
Page
Go to
Analysis"
Page
END
(Supplementary
61
information)
SYS SET