Sony GN3TR - No Picture

XBR-49/55/65/75X900E
TROUBLE SHOOTING
FLOW
4-1. NO PICTURE
36
No Picture
Got Any Normal
Display?
No
Yes
Check Smart Core
Behavior
(5x Blinking)
2.4 5x Blinking
Check Other
Portion:
Tuner - No Picture
HDMI - No Picture
Ext. Video Input -
No Picture
Yes
Replace
the V by One FFC
Harness
LCD Panel
(T-CON)
V by One FFC
Harness
NG
Check
BL_ON
on the B board
BL_ON：H
BL_ON：L
Symptom
improvement
BL_ON (L or H): IC401 #7pin (for 4K BMKS/BMKP board)
Replace
The B board
NG
B board NG
Symptom
improvement
No
Backlight
Video2/Component
(Back/Side)
Video1
(Side Mini Jack)
M2
IC1000
L36:CVBS3P
M35:CVBS2P
N35:SOY0
M38:Y0P
L38:PB0P
L37:PR0P
G16:GPIO66
VIDEO2_DET
AT35:GPIO56
VIDEO_DET
A16:SD_CLK
CR_DET
SCART_FB/COMP_Y
SCART_SB/COMP_Y
SCART_SG/COMP_PB
SCART_SR/COMP_PR
CVBS2P
CVBS3P
Video Analog Signal Path