DOWNLOAD Sony KDL-32EX725 / KDL-46EX725 Service Manual ↓ Size: 9.22 MB | Pages: 89 in PDF or view online for FREE

Model
KDL-32EX725 KDL-46EX725
Pages
89
Size
9.22 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-32ex725-kdl-46ex725.pdf
Date
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Sony KDL-32EX725 / KDL-46EX725 Service Manual ▷ View online

KDL-32EX725/46EX725/55EX725 35
SECTION 5 - FLOW CHARTS AND DIAGRAMS
OVERVIEW
The following flow charts provide information to determine what repair parts to order based on the TV error.
KDL-32EX725/46EX725/55EX725 36
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO POWER
G10 (32")
G5 (46")
G6 (55")
LCD 
PANEL
TCON
(120Hz)
LCD Panel Assembly
LCD 
Panel 
BATV
G8
LD
LED 
Backlights
LD
19V
24V
24V
+109V
-61V to -82V
55" Models
32", 46" Models
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
1
1
2
18
14
1
8
10
49
HMS3
HLR2
Wireless
WIFI
1
2
110VAC
CN6502
CN6801
CN6704 (32")
CN6151 (46")
CN6101 (55")
CN6701
CN6700
CN1002
CN1002
CN6002
CN2001
CN9006
3
CN6001
1
18
400V
1
18
12V
CN6501
CN6102
CN6601
CN6600
16
3
1
24
AU12V
REG 12V
TCON
12V
8
9
3
CN6001
14
12
LED-ON
LED-ON & 
BL Control
3D Emitter
HEM2
1
12V
12
1
LED-ON
These voltage levels will vary slightly due 
to panel size (40" Panel Levels shown). 
CN1001
CN1000
1
1
CN1001
CN1000
1
1
FIGURE 5-1.  POWER SUPPLY DIAGRAM
KDL-32EX725/46EX725/55EX725 37
SECTION 5 - FLOW CHARTS AND DIAGRAMS
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
Power Error
FIGURE 5-2.  NO POWER
KDL-32EX725/46EX725/55EX725 38
SECTION 5 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
Unit Shuts OFF
RED LED 
Blinking
2X Blink Pattern
REG12V Error
Check 
REG12V
*Before Shutdown
Yes
No
Check 
Power-ON
*Before Shutdown
Is voltage 
12V
Present ?
Is 
voltage 
3V
Present ?
Yes
No
Replace 
Main Board
Replace 
Power Supply 
Board
Replace 
Power Supply 
Board
FIGURE 5-3.  2 BLINK ERROR
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