KDL-40ZX1 - Sony TV Service Manual (repair manual). Page 11

For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to
bring up past occurrences of failure for confirmation on the screen:

In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen
After you have completed the repairs, clear the result display to “0”.

To clear the result display to “0”, press button on the remote commander sequentially as shown below when the diagnostic screen is being

displayed.

To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

5

* : Note that this differs from entering the service mode (volume +)

( Number button )

* 

( Volume )

INFO

VOL -

POWER

Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY LED for flashing.

2 times

4 times

5 times

LED ON  0.3 sec.

LED OFF 0.3 sec.

LED OFF

2 sec. 

[ FLASH COUNT ]

Note: One flash counts is not self-diagnostic.

STANDBY LED