No Picture - Sony X900E Series Service Manual

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4-1. NO PICTURE

No Picture
No
Check Smart Core
Got Any Normal
Display?
Yes
Check Other
Portion:
Ext. Video Input -
No Picture
HDMI - No Picture
Tuner - No Picture
XBR-49/55/65/75X900E
BL_ON (L or H): IC401 #7pin (for 4K BMKS/BMKP board)
No
Check
Behavior BL_ON
(5x Blinking) on the B board
Yes
2.4 5x Blinking Backlight
Video Analog Signal Path
Video2/Component
(Back/Side)
BL_ON：H
Replace
the V by One FFC
Harness
BL_ON：L Symptom
improvement
V by One FFC
Harness
VIDEO_DET
CR_DET
Video1
(Side Mini Jack)
TROUBLE SHOOTING
NG NG
Replace
The B board
Symptom
improvement
B board NG
AT35:GPIO56
N35:SOY0
SCART_FB/COMP_Y
M35:CVBS2P
CVBS2P
M38:Y0P
SCART_SB/COMP_Y
L38:PB0P
SCART_SG/COMP_PB
L37:PR0P
SCART_SR/COMP_PR
A16:SD_CLK
L36:CVBS3P
CVBS3P
G16:GPIO66
VIDEO2_DET
LCD Panel
(T-CON)
M2
IC1000
36