Sony KDL-22EX425 / KDL-32EX425 / KDL-32EX525 / KDL-40EX525 / KDL-46EX525 Service Manual ▷ View online
KDL-22EX425/32EX425/32EX525/40EX525/46EX525 15
SECTION 2 - SOFTWARE REQUIREMENTS
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 the
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.
In addition to software installation, service adjustment information
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 65
.
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
KDL-22EX425/32EX425/32EX525/40EX525/46EX525 16
SECTION 2 - SOFTWARE REQUIREMENTS
EXAMPLES OF SOFTWARE CORRECTABLE
SYMPTOMS
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)Loss of color
● Internet connectivity
● Certain features not working correctly
(photo or video file viewing)
KDL-22EX425/32EX425/32EX525/40EX525/46EX525 17
OVERVIEW
The primary circuits contained in the AZ2-F chassis for the consists of a Main (BATV) Board, the Power Supply Board (designated as the G1 for
the 22” model, GE2 for the 32” models and GE3 for the 40” & 46” models) the Motion Sensor (HMS3 Board), the IR Board (HLR2 Board), the
Switch Unit, and the LCD Panel Assembly which includes the TCON Board.
NOTE: For connector part number information, refer to
NOTE: For connector part number information, refer to
“Connectors” on page 61
. For Wire Dressing information, refer to
“Wire Dressing” on
page 64
.
SECTION 3 - CHASSIS OVERVIEW
SWITCH
UNIT
HLR2
HMS3
G1
TCON
BATS
FIGURE 3-1. KDL-22EX425 BOARD LAYOUT
SWITCH
UNIT
HLR2
HMS3
GE2
TCON
BATV
FIGURE 3-2. KDL-32EX425/32EX525 BOARD LAYOUT
KDL-22EX425/32EX425/32EX525/40EX525/46EX525 18
SECTION 3 - CHASSIS OVERVIEW
SWITCH
UNIT
HLR2
HMS3
GE3
TCON
BATV
FIGURE 3-3. KDL-40EX525 BOARD LAYOUT
SWITCH
UNIT
HLR2
HMS3
GE3
TCON
BATV
FIGURE 3-4. KDL-46EX525 BOARD LAYOUT
Click on the first or last page to see other KDL-22EX425 / KDL-32EX425 / KDL-32EX525 / KDL-40EX525 / KDL-46EX525 service manuals if exist.