Sony KDL-32EX729 / KDL-40EX729 / KDL-46EX729 Service Manual ▷ View online
KDL-32EX729/40EX729/46EX729 15
SECTION 2 - SOFTWARE REQUIREMENTS
● 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 this wchassis
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.
SOFTWARE UPDATES FOR SERVICERS
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.
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
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
http://www.sony.com/asp.
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
“Section 7 - Service
Adjustments” on page 53.
KDL-32EX729/40EX729/46EX729 16
SECTION 2 - SOFTWARE REQUIREMENTS
SOFTWARE UPDATE RESPONSIBILITY
Software updates are designed to be performed by the customer.
Warranty repairs in which the issue can be resolved by a software
update
are not reimbursable. Most issues involving software
updates are handled by the customer service center and should not
be directed to an authorized service center. It is the responsibility
of the servicer to prevent service calls for issues that involve
software updates. Exceptions to this are certain cases whereby the
customer is unable or unwilling to perform the task. In this situation,
the servicer will be notified and receive the proper authorization for
reimbursement.
It is the servicer’s responsibility, however, to
It is the servicer’s responsibility, however, to
make certain that any
TV requiring a legitimate service is running the latest software
version and to install it if necessary.
version and to install it if necessary.
CHECKING THE SOFTWARE VERSION
The easiest way to check the version of software that is currently on
the TV is to access the Contact Sony screen by using the customer
menu.
FIGURE 2-1. EXAMPLE OF SOFTWARE VERSION
LOCATED ON THE CONTACT SONY SCREEN
EXAMPLES OF SOFTWARE CORRECTABLE
SYMPTOMS
Always check the Sony Authorized Servicer Portal at
http://www.
sony.com/asp
site for any known and/or listed issues that are
software related. Most symptoms that are correctable by software
updates involve communications issues with other devices or minor
glitches in the operation of a specific function. Below is a list of some
of the symptoms that may be corrected with a software update:
● Fluctuations in picture brightness
● Intermittent picture freezing or noise
● Problems with certain inputs (especially HDMI)
● Intermittent or distorted audio
● Erratic remote control operation
● Unit turns on and off by itself
● Loss of color
● Internet connectivity
● Certain features not working correctly
(photo or video file viewing)
KDL-32EX729/40EX729/46EX729 17
OVERVIEW
The primary circuits contained in the AZ2-F chassis consists of a Main Board (designated as the BATV Board), Power Supply Board (designated
as the G10 Board for the 32” models, G4 Board for the 40” models, and the G5 Board for the 46” models), the 3D IR Emitter (HEM2 Board), the
Switch Unit, the Motion Sensor (HMS3 Board), the IR Board (HLR2 Board) and the LCD Panel Assembly which includes the TCON Board and
the LED Drive Board (LD Board).
NOTE: For connector part number information, refer to
NOTE: For connector part number information, refer to
“Connectors” on page 48
. For Wire Dressing information, refer to
“Wire Dressing” on
page 51
.
SWITCH
UNIT
HLR2
HEM2
HMS3
NOTE: The RU Board is NOT mounted on the LCD Panel. It is enclosed in the
Top R Bracket and Bottom R Bracket and is mounted on the Rear Cover.
NOTE: The LD Board is NOT included with the LCD Panel.
TCON
LD
G10
BATV
RU
Figure 3-1. BOArD LAYOuT FOr KDL-32eX729 ONLY
SECTION 3 - CHASSIS OVERVIEW
KDL-32EX729/40EX729/46EX729 18
SECTION 3 - CHASSIS OVERVIEW
NOTE: The RU Board is NOT mounted on the LCD Panel. It is enclosed in the
Top R Bracket and Bottom R Bracket and is mounted on the Rear Cover.
NOTE: The LD Board is NOT included with the LCD Panel.
SWITCH
UNIT
HLR2
HEM2
HMS3
TCON
LD
G4
BATV
RU
FIGURE 3-2. BOARD LAYOUT FOR KDL-40EX729 ONLY
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