Sony KDL-32EX525 / KDL-40EX525 Service Manual ▷ View online
KDL-32EX525/40EX525
31
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO POWER
LCD
PANEL
TCON
(60Hz)
LCD Panel Assembly
LCD
Panel
BATV
LED
Backlights
+109V
-61V to -82V
STBY
3.3V
Power-ON
3V
TCON-ON
3V
AC-OFF-Detect
3V
TCON
12V
AC
Input
IR Sensor
5V
Motion Sensor
5V
23
39
STBY 3.3V
33
7
1
8
10
12
12
8
10
49
HMS3
HLR2
Wireless
WIFI
1
2
110VAC
CN6002
CN2001
CN9006
3
CN6001
16
3
1
24
AU12V
REG 12V
TCON
12V
8
9
3
CN6001
GE2 (32")
GE3 (40")
CN6701 (GE2)
CN6601 (GE3)
CN6702 (GE2)
CN6602 (GE3)
CN6704 (GE2)
CN6201 (GE3)
These voltage levels will vary slightly due
to panel size (40" Panel Levels shown).
2
4
5
4
Dimmer
1V to 3V
Hsync/Dimmer DC
1.7V
LVDS Cable
FIGURE 5-1. POWER SUPPLY DIAGRAM
KDL-32EX525/40EX525
32
SECTION 5 - FLOW CHARTS AND DIAGRAMS
Power Error
Is
“Standby” LED
illuminate steady
RED?
Does the
“Power” LED
Light Green?
No
Yes
No
Press Remote
Power Button
Initial Power-ON OK
Troubleshoot Video,
Backlight, Panel, or Audio
Problem
Check
STBY 3.3V
(In STBY Mode)
Confirm TV is
securely plugged into
an
Active AC Outlet
Is
110VAC Present
at
CN6001?
Repair AC Outlet or
Replace AC-Power Cord
OK
Yes
Check Main Fuse
F6101
Is
voltage
3.3V
Present?
Yes
Is Fuse
Open?
No
Yes
No
Replace
Main Board
Replace
Power Supply
Board
Replace
Power Supply
Board
Check
AC-OFF-Detect
(In STBY Mode)
Is
voltage
3.3V
Present?
Replace
Power Supply
Board
No
Yes
Press TV
Power Button
Does the
“Power” LED
Light?
Yes
No
Replace
Remote Batteries or
Remote
Replace
Main Board
No
Yes
FIGURE 5-2. NO POWER FLOWCHART
KDL-32EX525/40EX525
33
SECTION 5 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
FIGURE 5-3. PROTECTION SHUTDOWN FLOWCHART
KDL-32EX525/40EX525
34
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO PICTURE OR SOUND
BATV
IC9000
X-Reality
(HDCP)
LCD Panel Assembly
TCON
(60Hz)
LCD
Panel
LED Backlight
System
CN2001
NAND FLASH
User Data
White Balance
GAMMA
User Menu (XMB)
Service Mode
LCD Panel
LVDS Cable
RF Input
Video 2
(Component / Composite)
Video 1 (Composite)
PC Input
HDMI IN 1
(ARC)
HDMI IN 2
HDMI IN 3
IC5500
HDMI
Switch
&
EQ
(EDID)
RJ45 (Ethernent)
USB 2.0
HDMI IN 4
IC1404
NTSC/ATSC
Tuner IC
14
/
42
Digital Video
Interface
Interface
USB 2.0
Interface
R
L
F4200
IC4601
Output
Amplifier
LR
Audio
CN4602
AU12V
Headphone/Analog
Audio Output
Digital Audio
Output (Optical)
SPDIF
CN2700
J2702
IC4502
OPAMP
LR
Audio
Video
Audio
Video
Audio
Video
Video
Audio
Video
Video
Audio
Video
Audio
Video
Audio
Video
Video
Audio
Video
Video
Audio
To HDMI 1 for
ARC Output
From SPDIF Output
(Optical)
FIGURE 5-4. VIDEO/AUDIO PROCESSING DIAGRAM
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