DOWNLOAD Sony KDL-32EX555 / KDL-32EX655 / KDL-40EX655 / KDL-46EX655 Service Manual ↓ Size: 9.69 MB | Pages: 52 in PDF or view online for FREE

Model
KDL-32EX555 KDL-32EX655 KDL-40EX655 KDL-46EX655
Pages
52
Size
9.69 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-32ex555-kdl-32ex655-kdl-40ex655-kdl-46ex655.pdf
Date
PREV: Sony KDL-46HX857 / KDL-55HX857 Service Manual

Sony KDL-32EX555 / KDL-32EX655 / KDL-40EX655 / KDL-46EX655 Service Manual ▷ View online

KDL-32EX555/32EX655/40EX655/46EX655 12
SECTION 3 - FLOW CHARTS AND DIAGRAMS
NO POWER
+OUT1
+OUT2
NC
NC
1
2
3
4
DC_DIMMER
BLINKING
PWM_DIMMER
BL_ERR
1
2
3
4
BL_ON
GND
DIGITAL_STBY
AU_GND
5
6
7, 8
9~12
REG12V
TCON_ON
AU_12V
STBY3.3V
13,14
17, 18
19
CN6601
TCON_VCC
AUDIO_GND
AU_12V
REG12V
1
2, 4
3, 5
12, 8
AUDIO_12V
STBY3.3V
7, 9
10
BLINKING
DIGITAL_STBY
POWER_ON
PWM_DIMMER
DC_DIMMER
CN6001
TO LED 
BACKLIGHTS
BAPS
-OUT1
-OUT2
NC
NC
1
2
3
4
CN6602
AC_OFF_DET
POWER_ON
26
27
28
23
TCON_VCC
12
13
14
15
16
17
18
19
20
BL_ON
BL_ERR
AC_OFF_DET
TCON_ON
CN6205
GL2 (32")
GL4 (40" & 46")
POWER AND CONTROL BLOCK DIAGRAM
KDL-32EX555/32EX655/40EX655/46EX655 13
SECTION 3 - FLOW CHARTS AND DIAGRAMS
No Power
Is standby LED 
blinking?
No
Yes
No
See 
Protection Shutdown 
flowchart
Yes
Does red standby 
LED on front panel 
light?
High (>2.5V)
on pin 27 of CN6205 
on power supply?
Yes
No
Main Board*
Press power 
button while 
monitoring pin 28 
of CN6205 on 
power supply 
board
High (3.3V)
appears 
momentarily?
Yes
No
Power Supply 
Board*
Power Supply 
Board*
Power Supply 
Board*
Remove AC power and 
wait at least 30 
seconds before 
reapplying
NO POWER FLOWCHART
*For Part Number information, Refer to 
“Section 4 - Disassembly/Part Number Information” on page 17
.
KDL-32EX555/32EX655/40EX655/46EX655 14
SECTION 3 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
Protect 
Shutdown. 
Standby LED 
Blinking
No
Yes
Power Supply 
Board*
Yes
2X
Main Board*
3X
No
5X
Yes
6X
No
7X
Imediately
TCON
(LCD Panel)*
Yes
No
After a while
Main Board*
Check ventilation
Power Supply 
Board*
8X
See Resolving an 
8x Error
PROTECTION SHUTDOWN FLOWCHART
*For Part Number information, Refer to 
“Section 4 - Disassembly/Part Number Information” on page 17
.
KDL-32EX555/32EX655/40EX655/46EX655 15
SECTION 3 - FLOW CHARTS AND DIAGRAMS
NO PICTURE
No Video
Backlights 
turned on?
Unplug LVDS 
connector at 
TCON while unit 
is running. This 
may need to be 
done more than 
once
Any flashes 
seen on 
screen?
Yes
No
Any OSD 
graphics 
present?
No
Main Board*
No
Power Supply 
Board*
Yes
Yes
Main Board*
LCD Panel*
TCON Board* 
NO VIDEO FLOWCHART
*For Part Number information, Refer to 
“Section 4 - Disassembly/Part Number Information” on page 17
.
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