DOWNLOAD Sony KDL-60EX640 / KDL-60EX645 Service Manual ↓ Size: 1.55 MB | Pages: 41 in PDF or view online for FREE

Model
KDL-60EX640 KDL-60EX645
Pages
41
Size
1.55 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-60ex640-kdl-60ex645.pdf
Date
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Sony KDL-60EX640 / KDL-60EX645 Service Manual ▷ View online

KDL-60EX640/60EX645 9
SECTION 3 - FLOW CHARTS AND DIAGRAMS
BLOCK DIAGRAM
Component/Composite
RF
Composite
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
MT5396
A/V DECODER
A/V PROCESS
TUNER
USB 1
HDMI 2
LVDS
AC IN
CLASS D 
AUDIO
AMP
GE60
HDMI 3
HDMI 4
Ethernet
USB 2
LVDS
WLAN CARD
MAIN BOARD
IR BOARD
(KDL-60EX645 ONLY)
OVERALL BLOCK DIAGRAM
KDL-60EX640/60EX645 10
SECTION 3 - FLOW CHARTS AND DIAGRAMS
NO POWER
STBY3.3V
AUDIO_12V
AC_OFF_DET
POWER_ON 
1
2
3
4
AUDIO_GND
BL_ERR
REG12V_GND
REG12V
5
6, 7
8, 9
10
BL_ON
TCON_12V
DIMMER
N/C
11
12
13
14
TCON_ON 
15
AC IN (N)
AC IN (H)
1
2
CN2
A
REG 12V
GND
AUDIO_12V
6, 8
5, 7, 9
10
DIMMER
BL_ERR
1
12
CN201
TCON_12V
14
AC_FF_DET
TCON_ON
3
15
BL_ON
13
STBY 3.3V
4
POWER_ON
2
GE60
CN1
LCD PANEL, TCON
&
LED BACKLIGHTS
VLED2 -
7
VLED3 +
VLED3 -
9
11
VLED1 +
1
VLED1 -
VLED2 +
3
5
CN3
VLED4 +
VLED4 -
13
15
POWER SUPPLY
MAIN BOARD
 
 
POWER AND CONTROL BLOCK DIAGRAM
KDL-60EX640/60EX645 11
SECTION 3 - FLOW CHARTS AND DIAGRAMS
No Power
Is standby LED 
blinking?
No
Yes
No
See protection 
flowchart
Yes
Does red standby 
LED on front panel 
light?
High (>2.5V)
on pin 2 of CN2 on 
power supply?
Yes
No
Main Board*
Press power 
button while 
monitoring pin 1 
of CN2 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 re-
applying
NO POWER FLOWCHART
*For Part Number information, refer to 
“Section 4 - Disassembly/Part Number Information” on page 15
.
KDL-60EX640/60EX645 12
SECTION 3 - FLOW CHARTS AND DIAGRAMS
*For Part Number information, refer to 
“Section 4 - Disassembly/Part Number Information” on page 15
.
STANDBY LED BLINKING
Protect 
Shutdown. 
Standby LED 
Blinking
No
Yes
No
Yes
2X
Main Board*
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*
PROTECTION SHUTDOWN FLOWCHART
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