Sony XBR-65HX925 (serv.man3) Service Manual ▷ View online
XBR-65HX925 35
SECTION 5 - FLOW CHARTS AND DIAGRAMS
No Power
No
Yes
Is energy
Saving switch on
side of unit turned
off?
Does red standby
LED on front panel
light?
High (3.3V)
on pin 2 of CN6150
on G11 board?
Yes
No
Yes
Turn switch on
No
ENERGY SAVING
SWITCH
Press power
button while
monitoring pin 1
of CN6701 on
G12 board
High (3.3V)?
Yes
No
Unplug AC
power for at least
30 seconds and
re-apply
G11 Board
Is standby LED
blinking?
See protection
flowchart
Yes
G11 Board
G12 Board
Main Board
No
FIGURE 5-2. NO POWER FLOWCHART
XBR-65HX925 36
SECTION 5 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
Protect
Shutdown.
Standby LED
Blinking
No
Yes
G12 Board
G11 Board
No
Yes
2X
3X
4X
No
Yes
5X*
Yes
6X
No
7X
Imediately
LCD Panel
TCON
LCD Panel
Yes
No
After a while
Main Board
Check
ventilation
10X
HEM2 Board
G11 Board
8X
No
Yes
Service
Bulletin
No
Yes
*If 5X issue is
intermittent, check for a
Service Bulletin
regarding possible
HLT2 Board failure
Main Board
FIGURE 5-3. PROTECTION SHUTDOWN FLOWCHART
XBR-65HX925 37
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO PICTURE
No Video
Backlights
turned on?
Unplug LVDS
connector with
unit off. Turn unit
back on
Test patterns
display on
screen?
Yes
No
TCON
(LCD Panel)
Sony logo
appears
momentarily?
No
Main Board
No
TCON
(LCD Panel)
Yes
Yes
Main Board
FIGURE 5-4. NO VIDEO FLOWCHART
XBR-65HX925 38
SECTION 5 - FLOW CHARTS AND DIAGRAMS
Video Distortion
Is distortion
across entire
screen?
Any horizontal
lines?
No
No
Yes
Yes
Improper or
missing colors?
Yes
Main Board
No
Vertical lines
or bars?
No
Yes
Lines
move when
wide-mode
changed?
Yes
No
TCON
(LCD Panel)
Main Board
LCD Panel
Any single or
isolated vertical
lines?
Yes
LCD Panel
More than 1
vertical band?
No
Yes
TCON
(LCD Panel)
FIGURE 5-5. VIDEO DISTORTION
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