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Model
KDL-40EX645 KDL-46EX641 KDL-46EX645 KDL-50EX645 KDL-55EX645
Pages
50
Size
4.2 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-40ex645-kdl-46ex641-kdl-46ex645-kdl-50ex645-kd.pdf
Date

Sony KDL-40EX645 / KDL-46EX641 / KDL-46EX645 / KDL-50EX645 / KDL-55EX645 Service Manual ▷ View online

KDL-40EX645/46EX641/46EX645/50EX645/55EX645 vi
CAUTIONS AND WARNINGS
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety 
checks before releasing the set to the customer:
1.  Check the area of your repair for unsoldered or poorly soldered 
connections. Check the entire board surface for solder splashes 
and bridges.
2.  Check the interboard wiring to ensure that no wires are “pinched” or 
touching high-wattage resistors.
3.  Check that all control knobs, shields, covers, ground straps and 
mounting hardware have been replaced. Be absolutely certain that 
you have replaced all the insulators.
4.  Look for unauthorized replacement parts, particularly transistors, 
that were installed during a previous repair. Point them out to the 
customer and recommend their replacement.
5.  Look for parts which, though functioning, show obvious signs of 
deterioration. Point them out to the customer and recommend their 
replacement.
6.  Check the line cords for cracks and abrasion. Recommend the 
replacement of any such line cord to the customer.
7.  Check the antenna terminals, metal trim, “metallized” knobs, screws 
and all other exposed metal parts for AC leakage. Check leakage 
as described in “Leakage Test”.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and from all 
exposed metal parts to any exposed metal part having a return to chassis, 
must not exceed 0.5 mA (500 microamperes). Leakage current can be 
measured by any one of three methods.
1.  A commercial leakage tester.  
Follow the manufacturers’ instructions provided with the tester.
2.  A battery-operated AC milliammeter. 
3.  Measuring the voltage drop across a resistor by means of a VOM 
or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so 
analog meters must have an accurate low voltage scale. Nearly all 
battery-operated digital multimeters that have a 2 VAC range are 
suitable. (see Figure A)
To Exposed Metal
Parts on Set
0.15 µF
Earth Ground
AC
Voltmeter
(0.75V)
Figure A. Use an AC voltmeter to check AC leakage.
HOW TO FIND A GOOD EARTH GROUND
The cover-plate retaining screw on most AC outlet boxes is at earth ground. 
Verify the AC outlet box retaining screw ground by connecting a 60W to 
100W incandescent (not a neon or fluorescent lamp) between the hot side of 
the receptacle and the retaining screw. Try both slots, if necessary, to locate 
the hot side on the line; the lamp should light at normal brilliance if the screw 
is at ground potential. (see Figure B)
Figure B. Checking for earth ground.
Trouble Light
AC Outlet Box
KDL-40EX645/46EX641/46EX645/50EX645/55EX645 1
FEATURES
The AZ3FK chassis is one of several designs for the 2012 model line of 
Sony Bravia® LCD televisions. This manual covers the following models:
 KDL-40EX645
 KDL-46EX641
 KDL-46EX645
 KDL-50EX645
 KDL-55EX645
The features of the EX64x series Edge LED backlite LCD HDTV include:
 
Brilliant Full HD 1080p picture quality
 
Lifelike movement with Motionflow™ XR 240
 
Clear Resolution Enhancer for clear detail
 
Bright picture & thin design with Edge LED backlight
 
BRAVIA® Sync™ Allows your TV to communicate with other Sony 
equipment supporting the Control for HDMI function
 
DLNA Certified™ media servers
 
Movies, music & apps w/ Sony Entertainment Network
1
 
Wi-Fi® adaptor included to stream HD entertainment
1
SECTION 1 - FEATURES AND OVERVIEW
SPECIFICATIONS
System
Television system
NTSC: American TV standard 
ATSC (8VSB terrestrial): ATSC compliant 8VSB
QAM on cable: ANSI/SCTE 07 2000 (Does not include Cable CARD functionality)
Channel coverage
Analog terrestrial: 2 - 69 / Digital terrestrial: 2 - 69
Analog Cable: 1 - 135 / Digital Cable: 1 - 135
Panel system
LCD (Liquid Crystal Display) Panel LED backlight
 
W
 
0
1
 
+
 
W
 
0
1
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 r
e
k
a
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p
S
(KDL-55EX645/50EX645)
8 W + 8 W 
(KDL-46EX645/46EX641/40EX645)
Input/Output jacks
CABLE/ANTENNA
75-ohm external terminal for RF inputs
VIDEO IN 1/2
VIDEO: 1 Vp-p, 75 ohms unbalanced, sync negative
AUDIO: 500 mVrms (Typical) / Impedance: 47 kilohms
COMPONENT IN
YP
B
P
R
 (Component Video): Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative / P
B
: 0.7 Vp-p, 75 ohms 
P
R
: 0.7 Vp-p, 75 ohms / Signal format: 480i, 480p, 720p, 1080i, 1080p
AUDIO: 500 mVrms (Typical) / Impedance: 47 kilohms
HDMI:  Video: 480i, 480p, 720p, 1080i, 1080p, 1080/24p
Audio: Two channel linear PCM 32, 44.1 and 48 kHz, 16, 20 and 24bits, Dolby Digital
AUDIO OUT
500 mVrms (typical)
DIGITAL AUDIO OUT 
(OPTICAL)
PCM/Dolby Digital optical signal
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Stereo mini jack, 500 mVrms, (Typical) / Impedance: 47 kilohms
 
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UWA-BR100 as WiFi Dongle
 
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able to play back)
 
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A
B
0
0
1
/
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S
A
B
0
1
LAN
network, connection speed may differ. 10BASE-T/100BASE-TX communication rate and 
communication quality are not guaranteed for this TV)
HDMI IN 1/2/3/4
PC/HDMI IN 1 AUDIO IN
1.  Broadband speed of at least 2.5 Mbps recommended (10 Mbps for HD). Content subject to 
change and may require fees. Wireless connectivity requires 802.11 home network (802.11 
recommended). 
KDL-40EX645/46EX641/46EX645/50EX645/55EX645 2
SECTION 1 - FEATURES AND OVERVIEW
Model name KDL-
55EX645
Power and others
Power consumption
W
 
2
5
1
in use
in standby
Less than 0.2 W with 120 V AC and  
with 240 V AC less than 0.25 W
Screen size*
(inches measured diagonally)
)
s
s
a
l
c
 
5
5
6
.
4
5
 
n
o
it
u
l
o
s
e
r
 
y
a
l
p
s
i
D
Speaker/Full range (2)
(inches)
Dimensions*
(inches)
1,269 × 797 × 311
50 × 31 
1
/
2
 × 12 
1
/
4
without stand (mm)
(inches)
1,269 × 760 × 60
50 × 30 × 2 
3
/
8
wall-mount hole pattern 
(mm)
0
0
3
 
×
 
0
0
3
wall-mount screw size 
(mm)
Mass*
(lb.)
23.4
51.6
without stand (kg)
(lb.)
18.9
41.7
Remote control RM-YD075 (1) / Size AAA batteries (2) / Operating Instructions (this manual) (1) / Quick Setup Guide (1) / Warranty Card (1)
Safety and Regulatory Booklet (1) / Software License (1) /Stand installation guide (1) /Table-Top Stand (1 set)
common to all models
individual models
Supplied accessories
Optional accessories
• Optional accessories availability depends on its stock.
• Design and specifications are subject to change without notice.
* Dimensions and mass are approximate values.
50EX645
46EX645/46EX641
40EX645
W
 
0
0
1
W
 
7
1
1
W
 
6
4
1
0
4
6
4
0
5
1,152 × 731 × 251
45 
3
/
8
 × 28 
7
/
8
 × 10
1,074 × 686 × 251
42 
3
/
8
 × 27 
1
/
8
 × 10
941 × 612 × 231
37 
1
/
8
 × 24 
1
/
8
 × 9 
1
/
8
1,152 × 693 × 61
45 
3
/
8
 × 27 
3
/
8
 × 2 
1
/
2
1,074 × 649 × 60
42 
3
/
8
 × 25 
5
/
8
 × 2 
3
/
8
941 × 575 × 60
37 
1
/
8
 × 22 
3
/
4
 × 2 
3
/
8
0
0
3
 
×
 
0
0
3
0
0
4
 
×
 
0
0
3
22.8
50.3
17.4
38.4
14.3
31.5
19.6
43.2
14.2
31.3
11.7
25.8
110-240 V AC, 50/60 Hz (U.S.A. / Canada 120 V AC, 60 Hz)
Less than 0.3  W with 120 V AC and
with 240 V AC less than 0.35 W
Less than 0.2 W with 120 V AC and with 240 
V AC less than 0.3 W
)l
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il
 
0
8
0
,
1
 
×
 )
l
a
t
n
o
z
ir
o
h
s
t
o
d
 
0
2
9
,
1
30 × 150
(1 
3
/
16
 × 6)
M6 (8-12 mm)
Connecting cables / Support Belt Kit / Wall-Mount Bracket: SU-WL500
Screws (7)
Power requirement
 (mm)
with stand (mm)
with stand (kg)
KDL-40EX645/46EX641/46EX645/50EX645/55EX645 3
SECTION 1 - FEATURES AND OVERVIEW
CHASSIS OVERVIEW
The primary circuits in the AZ3FK chassis consist of a Main Board (A Board), Power Supply Board (GL5A for the 40” models, GL5B for the 46” models, GE50 
for the 50” models and GE55 for the 55” models), the IR Board (H Board), the Switch Unit, the Wireless LAN Card and the LCD Panel Assembly which includes 
the TCON Board and LD Board (50” model only).
NOTE: For connector part number information, refer to 
“Connectors” on page 25
. For Wire Dressing information, refer to 
“Wire Dressing” on page 29
.
SWITCH
UNIT
TCON
GL5A
A
H
WIRELESS LAN CARD
BOARD LAYOUT FOR KDL-40EX645 ONLY
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