Sharp LC-26AF3 M/H/X Service Manual page 34

LC-26AF3 M/H/X
LC-32AF3 M/H/X
LC-37AF3 M/H/X
11-4. Lamp error detection
(1) Function
This LCD color TV set incorporates the lamp error detection feature that automatically turns off the power
for safety. If the lamp or the lamp circuit is defective or if the lamp error detection is activated for some
reason, the following will result.
1 The power is interrupted in approx. 6 seconds after turned on.(The power LED on the front of the TV
set turns from green to red and keeps blinking in red: ON for 250ms; OFF for 1 sec)
2 If the phenomenon mentioned in 1 above occurs five consecutive times, the power cannot be turned
on.(The LED keeps blinking in red: ON for 250ms; OFF for 1 sec)
(2) Measures
1 Checking with lamp error detection OFF
Enter the display process, referring to "11-1. Entering and exiting the display process mode". If the
lamp or the lamp circuit is defective, the lamp will go out. (The power LED is green.)
Thus abnormalities can be checked.
2 Resetting the lamp error circuit
After checking for abnormality in the lamp or the lamp circuit, reset the lamp error count.
If the lamp error is detected five consecutive times, the power cannot be turned on. Use the cursor
(UP/DOWN) key to move to [L ERR RESET], (Line 4) on the display process mode service page.
Then use the cursor (LEFT/RIGHT) key to select the [L ERR RESET] value. Finally press the cursor
(UP/DOWN) key to reset the value to "0".
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