Read Sony KV-VF21M40 Service Manual online
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4.
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 occurances of failure for confirmation on the screen:
[To Bring Up Screen Test]
• In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
• In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[Screen display] /
channel
[5] /
Sound volume
[-] /
Power ON
u
˘
Note that this differs from entering the service mode (mode volume
[+]
).
Self-Diagnosis screen display
5.
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 as shown below when the diagnos-
• To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the diagnos-
tic screen is being displayed.
• Pay attention when perform by the service mode, other all electric adjustment data will be rewrite.
Channel
[8] / [0]
[Quitting Self-diagnostic screen]
• To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
• To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
3.
DISPLAY OF STANDBY LIGHT FLASH COUNT
* One flash count is not used for self-diagnostic.
< Diagnostic Item >
• +B OCP/OVP
• White balance failure
STOPPING THE STANDBY FLASH
• Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY lamp from flashing.
• Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY lamp from flashing.
• Vertical deflection stopped
2 times
4 times
5 times
Lamp ON 0.3 sec.
Lamp OFF 0.3 sec.
Lamp OFF 3.0 sec.
< Flash Count >
STANDBY lamp (RED)
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
diagnostic item : result
SELF CHECK
VCR : -- --
1:
2 : 1
3 :
4 : 0
5 : 1
Note: Though "1: , 3:" indicated, not using.
EMG code.
+
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