DOWNLOAD Sony KDL-40EX620 / KDL-40EX621 / KDL-46EX620 / KDL-46EX621 / KDL-55EX620 / KDL-55EX621 Service Manual ↓ Size: 11.32 MB | Pages: 97 in PDF or view online for FREE

KDL-40EX620/40EX621/46EX620/46EX621/55EX620/55EX621 15

Television system

NTSC: American TV standard 
ATSC (8VSB terrestrial): ATSC compliant 8VSB
QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD 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

Speaker output

10 W + 10 W

CABLE/ANTENNA

75-ohm external terminal for RF inputs

VIDEO IN 1/2

VIDEO / AUDIO

COMPONENT IN

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 (Component Video) / Signal format: 480i, 480p, 720p, 1080i, 1080p

AUDIO

HDMI IN 1/2/3/4

HDMI: Video: 480i, 480p, 720p, 720/24p/30p, 1080i, 1080p, 1080/24p/30p

HDMI: 

Audio: Two channel linear PCM 32, 44.1 and 48 kHz, 16, 20 and 24 bits, Dolby Digital

Analog audio input (minijack) (HDMI IN 4 only)
ARC (Audio Return Channel) (HDMI IN 1 only)

AUDIO OUT/Headphones

500 mVrms (typical)
Stereo mini jack / Impedance:   16 ohms

DIGITAL AUDIO OUT 
(OPTICAL)

PCM/Dolby Digital optical signal

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PC/HDMI 4 AUDIO IN

Stereo mini jack

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ection speed may differ depending on the 

network environment. 10BASE-T/100BASE-TX communication rate and communication 
quality are not guaranteed for this TV.)

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REMOTE 
(EX729 series only)

RS232C, D-sub 9 pin.
This jack is for receiving the external control signal.

* Download Acquisition Mode (DAM) is  used for software updates and/or

collecting data for Rovi On Screen Guide.

• Optional accessories availability depends on its stock.
• Design and specifications are subject to change without notice.

Optional accessories

Connecting cables

Support Belt Kit
Wall-Mount Bracket: SU-WL500
USB Wireless LAN Adapter

Operating temperature

32 °F - 104 °F (0 °C - 40 °C) 

Power requirement

110-240 V AC, 50/60 Hz (U.S.A./Canada 120 V AC, 60 Hz)

Power consumption

166 W

122 W

110 W

in use
in DAM*

0.02 kWh/Day

(You may hear a clicking noise during the download but this is normal.)

in standby

Less than 0.2 W with 120 V AC and less than 0.3 W with 240 V AC

Screen size
(inches measured diagonally)

54.6 inches

(55 class)

46 inches

40 inches

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Speaker 
Full range

(mm)

(inches)

30 × 150 (2)

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 × 6 (2)

Dimensions  with stand

(mm)

(inches)

1,269 × 799 × 315

50 × 31 

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1,078 × 690 × 260

42 

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943 × 616 × 250

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 × 24 

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without stand 

(mm)

(inches)

1,269 × 769 × 41

50 × 30 

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1,078 × 660 × 42

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943 × 586 × 42

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wall-mount hole pattern

(mm)

0

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wall-mount screw size

(mm)

M6 (length: refer to the Setup Guide.)

Mass

with stand  (kg)/(lb.)

25.4 / 56

17.9 / 39.5

14.4 / 31.8

without stand  (kg)/(lb.)

20.2 / 44.5

14.3 / 31.5

11.2 / 24.7

Supplied accessories

See “Checking the accessories”.

 (for KDL-55/46EX62x)
Assembling screws for Table-Top Stand (M6 × 14) (3) 
 (for KDL-40EX62x)
Hexagon wrench (1)
Operating Instructions (this manual) 
and other documents

*1Please refer to the model name printed on the remote control. 

*2Assembling the Table-Top Stand is required. 

Refer to the supplied Table-Top Stand leaflet to assemble the Table-Top Stand. 

KDL-40EX620/40EX621/46EX620/46EX621/55EX620/55EX621 16

To prevent electric shock and blade 
exposure, do not use this polarized AC 
plug with an extension cord, receptacle 
or other outlet unless the blades can be 
fully inserted.
• Some people may experience 

discomfort (such as eye strain, fatigue, 
or nausea) while watching 3D video 
images or playing stereoscopic 3D 
games. Sony recommends that all 
viewers take regular breaks while 
watching 3D video images or playing 
stereoscopic 3D games. The length 
and frequency of necessary breaks 
will vary from person to person. You 
must decide what works best. If you 
experience any discomfort, you 
should stop watching the 3D video 
images or playing stereoscopic 3D 
games until the discomfort ends; 
consult a doctor if you believe 
necessary. You should also review (i) 
the instruction manual of any other 
device or media used with this 
television and (ii) our website 
(www.sony.com/tvsupport) for the 
latest information. The vision of 
young children (especially those 
under six years old) is still under 
development. Consult your doctor 
(such as a pediatrician or eye doctor) 
before allowing young children to 
watch 3D video images or play 
stereoscopic 3D games. Adults should 
supervise young children to ensure 
they follow the recommendations 
listed above.

• When using the simulated 3D 

function, please note that the 
displayed image is modified from the 
original due to the conversion done by 
this television.

• Operate the TV only on 110-240 V 

AC (U.S.A./Canada 120 V AC)

Macintosh is a trademark of Apple Inc., 
registered in the U.S. and other 
countries. 
HDMI, the HDMI Logo, and High-
Definition Multimedia Interface are 
trademarks or registered trademarks of 
HDMI Licensing LLC in the United 
States and other countries.
Fergason Patent Properties, LLC: 
U.S. Patent No. 5,717,422
U.S. Patent No. 6,816,141
Manufactured under license from Dolby 
Laboratories. Dolby and the double-D 
symbol are trademarks of Dolby 
Laboratories.
Rovi and Rovi On Screen Guide are 
trademarks of Rovi Corporation and/or 
its subsidiaries.
The Rovi On Screen Guide system is 
manufactured under license from Rovi 
Corporation and/or its subsidiaries.
The Rovi On Screen Guide system is 
protected by one or more United States 
patents of Rovi Corporation and/or its 
subsidiaries.

Rovi Corporation and/or its subsidiaries 
and related affiliates are not in any way 
liable for the accuracy or availability of 
the program schedule information or 
other data in the Rovi On Screen Guide 
system and cannot guarantee service 
availability in your area. In no event 
shall Rovi Corporation and/or its related 
affiliates be liable for any damages in 
connection with the accuracy or 
availability of the program schedule 
information or other data in the Rovi On 
Screen Guide system.
Blu-ray Disc is a trademark.
“BRAVIA” and 

, S-Force, 

Motionflow, BRAVIA Sync, and 

 are 

trademarks or registered marks of Sony 
Corporation.
“PlayStation” is a registered trademark 
and “PS3” is a trademark of Sony 
Computer Entertainment Inc.
DLNA

®

, the DLNA Logo and DLNA 

CERTIFIED

®

 are trademarks, service 

marks, or certification marks of the 
Digital Living Network Alliance.
“FACE DETECTION” logo is 
trademark of Sony Corporation.
TrackID is a trademark or registered 
trademark of Sony Ericsson Mobile 
Communications AB.

Music and video recognition technology 
and related data are provided by 
Gracenote

®

. Gracenote is the industry 

standard in music recognition 
technology and related content delivery. 
For more information, please visit 
www.gracenote.com. 
CD, DVD, Blu-ray Disc, and music and 
video-related data from Gracenote, Inc., 
copyright © 2000-present Gracenote. 
Gracenote Software, copyright © 2000-
present Gracenote. One or more patents 
owned by Gracenote apply to this 
product and service. See the Gracenote 
website for a nonexhaustive list of 
applicable Gracenote patents. 
Gracenote, CDDB, MusicID, 
MediaVOCS, the Gracenote logo and 
logotype, and the “Powered by 
Gracenote” logo are either registered 
trademarks or trademarks of Gracenote 
in the United States and/or other 
countries.

Your BRAVIA TV is 
ENERGY STAR

®

 

qualified in the “Home” 
mode. 
It meets strict energy 
efficiency guidelines 
set by the U.S. 
Environmental Protection Agency and 
Department of Energy. ENERGY 
STAR is a joint program of these 
government agencies, designed to 
promote energy efficient products and 
practices.
Changes to certain features, settings, 
and functionalities of this TV (i.e. Rovi 
On Screen Guide, Picture/Sound, Light 
Sensor, Power Savings) can increase or 
change the power consumption.
Depending upon such changed settings, 
the power consumption may exceed the 
limits required for the ENERGY STAR 
qualification in the “Home” mode.

KDL-40EX620/40EX621/46EX620/46EX621/55EX620/55EX621 17

There are 2 reasons for updating the software on the TVs. 

 

● Software updates for customers

 

These updates are for enhancements or improvements that 

have been made to the software after the TV was released. 

These updates are accessed by the customer from the Sony 

.

 

● Software update for servicers

 

These updates are specifically for servicers to use during a 

service call and are only available on the Sony Authorized 

Servicer Portal at 

The subject of software updates is very important. The televisions 

of today have advanced to the point where they are not simply a 

television anymore. They are evolving into devices that are designed 

to integrate with numerous other devices found in the home. Some 

examples are: Portable audio and video devices, still cameras, home 

computer networks and accessing the internet to name a few.
Communications with these varying devices requires that the 

television be compatible with varying communications protocols. 

Although standards are detailed for each of these protocols, the real 

world dictates that occasional errors may occur that could prevent 

devices from operating or communicating properly.
Keeping the software in the television up-to-date is a procedure that 

is normally handled by the owner of the television. Most customers 

who own computers and other digital devices are familiar with and are 

accustomed to updating the software in their products. If a customer 

contacts the Sony Customer Support Center and it is deemed to 

be correctable with a software update, the issue is handled at the 

customer level.
Software updates can be performed by:

 

● Customer Manual Downloads: Software updates can be 

accessed by the customer from the Sony Support Site at 

 where they can be downloaded 

and placed on a USB thumb drive to be loaded onto the TV. 

The instructions for downloading the software file vary from 

chassis to chassis and sometimes from model to model. The 

customer is provided with the instructions to properly format 

the USB thumb drive, unzip the file, and the procedures for 

loading the software into the television.

KDL-40EX620/40EX621/46EX620/46EX621/55EX620/55EX621 18

 

● Network Downloads: Internet software updates are 

becoming more prevalent as more and more models 

incorporate home network capabilities. This method is the 

most practical since the television will check for the latest 

version of software. The models using the AZ2-F chassis 

provide the customer with a choice of turning the automatic 

software update feature on or off. If set to on, the television 

will lookup software information while the unit is in standby. 

If a newer version is available, it will be downloaded and 

installed without any input from the customer.

 

● Built-in Tuner: OTA or cable sources having the proper 

station that is transmitting software update data packets. 

Although the ability to transmit software update is possible in 

this way, it is the least common and is reserved for particular 

situations where a critical update is “forced”, thereby 

updating the unit without any input from the customer.

The models in this manual utilize a “generic” type Main Board. In 

the past, many different Main Boards needed to be stocked due to 

differences in software requirements. The software loaded on the 

board was specific to the model and its features along with the type 

of LCD panel installed during production. 
Replacement Main Boards are now stocked with basic software. 

Once the replacement board is installed in the unit, the most current 

software needs to be installed using a USB thumb drive containing 

the necessary software downloaded.
This  new  method  of  supplying  Main  Boards  significantly  reduces 

the complexity of replacing LCD panels and Main Boards. 

Information about the LCD panel is stored on the TCON circuits. 

This information is automatically loaded onto the Main Board 

when the TV is powered up. With the correct software version the 

Main Board and/or the TCON or LCD panel can be replaced more 

efficiently.  The  software  update  and  procedures  for  the  software 

installation are located on the Sony Authorized Servicer Portal at  

In addition to software installation, service adjustment information 

may need to be modified or verified to complete the service of the 

TV. Service adjustment information is covered in 

Adjustments” on page 64.