DOWNLOAD Sony KDL-32EX355 / KDL-40EX455 Service Manual ↓ Size: 2.55 MB | Pages: 41 in PDF or view online for FREE

Model
KDL-32EX355 KDL-40EX455
Pages
41
Size
2.55 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-32ex355-kdl-40ex455.pdf
Date
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KDL-32EX355/40EX455 9
SECTION 3 - FLOW CHARTS AND DIAGRAMS
BLOCK DIAGRAM
COMPONENT/COMPOSITE
RF
HDMI 1
PC HD15
POWER SUPPLY
SWITCH
UNIT
LED
IR RX
LCD PANEL, TCON, &
LED BACKLIGHTS
A
H
L
R
ANALOG AUDIO OUT
OPTICAL AUDIO OUT
MT5366
A/V DECODER
A/V PROCESS
TUNER
USB
HDMI 2
LVDS
BACKLIGHT POWER
AC IN
CLASS D 
AUDIO
AMP
G32 (32")
G40 (40")
CONNECTOR
L
MAIN BOARD
IR BOARD
OVERALL BLOCK DIAGRAM
KDL-32EX355/40EX455 10
SECTION 3 - FLOW CHARTS AND DIAGRAMS
NO POWER
ACD
PS_ON
+5.2V
1
2, 3
4
5, 6
+24VA
DIM
GND
+12V
7~9
10, 11
12
13
NC
ON/OFF
DET
14
15
AC IN (N)
AC IN (H)
1
2
CN9302
A
DET
ACD
+5.2V
1
2
3, 4
PS_ON
+24VA
5
6, 7
CN701
+12V
11, 12
DIM
ON/OFF
13
14
GND
8~10
CN901
LCD PANEL, TCON
&
LED BACKLIGHTS
LED1 +
1
N/C
LED2 +
2,3
4
CN8501
LED1 -
1
N/C
LED2 -
2,3
4
CN8502
5
N/C
MAIN BOARD
POWER SUPPLY
G32 (32")
G40 (40")
POWER AND CONTROL BLOCK DIAGRAM
KDL-32EX355/40EX455 11
SECTION 3 - FLOW CHARTS AND DIAGRAMS
*For Part Number information, refer to 
“Section 4 - Disassembly/Part Number Information” on page 15
.
No Power
Is standby LED 
blinking?
No
Yes
No
See 
Protection Shutdown 
flowchart
Yes
Does red standby 
LED on front panel 
light?
Press power 
button while 
monitoring pin  
15 of CN9302 on  
power supply board
High (3.3V)
on pin 15?
Yes
No
Main Board*
Power Supply 
Board*
High (3.3V)
on pin 14?
Yes
No
Power Supply 
Board*
Power Supply 
Board*
NO POWER FLOWCHART
KDL-32EX355/40EX455 12
SECTION 3 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
Protect
Shutdown.
Standby LED 
Blinking
No
Yes
No
Yes
2X
3X
5X
No
Yes
LCD Panel*
6X
Yes
7X
No
Immediately
After a While
Check room 
temperature and 
ventilation around 
unit
Power Supply 
Board*
Main Board*
“SONY” logo 
appears before 
shutdown?
Yes
No
LCD Panel*
Power Supply 
Board*
Main Board*
PROTECTION SHUTDOWN FLOWCHART
*For Part Number information, refer to 
“Section 4 - Disassembly/Part Number Information” on page 15
.
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