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テレビ Sony BA-4DのPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Sony BA-4D 11 ページ。

Sony BA-4D サービスマニュアル
Display of Standby/Timer LED Flash Count
2 times
4 times
5 times
LED ON 0.3 sec.
LED OFF 0.3 sec.
Diagnostic Item
+B overcurrent
Vertical deflection stopped
White balance failure
*One flash count is not used for self-diagnostic.
Stopping the Standby/Timer LED Flash
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER LAMP from
flashing.
Self-Diagnostic Screen Display
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 on the screen for confirmation.
To Bring Up Screen Test
In standby mode, press buttons on the Remote Commander sequentially, in rapid succession, as shown below:
Channel 5
Display
Self Diagnostic Screen Display
SELF DIAGNOSTIC
2:
0
3:
N/A
0
4:
0
5:
1
101:
N/A
0
Handling of Self-diagnostic Screen Display
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during
repairs. When you have completed the repairs, clear the result display to "0".
Unless the result display is cleared to "0", the self-diagnostic function will not be able to detect subsequent faults after completion
of the repairs.
Clearing the Result Display
To clear the result display to "0", press buttons on the Remote Commander sequentially when the diagnostic screen is displayed,
as shown below:
Channel 8
ENTER
Quitting the Self-Diagnostic Screen
To quit the entire self-diagnostic screen, turn off the power switch on the Remote Commander or the main unit.
LED OFF
3 sec.
Flash Count*
2 times
4 times
5 times
Sound volume
Power ON
Note that this differs from entering the service mode (sound volume
Numeral "0" means that no fault was detected.
Numeral "1" means a fault was detected one time only.
— 5 —
KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/
29AL66C/29SL42/29SL42C/29SL46/29XL42M
STANDBY/TIMER LED
+
).