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SECTION 3
SELF DIAGNOSIS FUNCTION
When turning on the TV, a self diagnosis function is executed.
If no acknowledgment is returned from a device which is turned "ON", the device has a problem.
In this case, one of the LED's responding to the problem device will flicker a defined number of times.
The flickering frequency responding to each failed device is shown below.
Board
A board
Aboard
|
Aboard
Ref. No.
802, T801
10304, 10501
0807
Device
H. OUT, FBT
YCJ, V-OUT
Flickering Frequency
2
4
5
All the devices are checked one after another from the left of the table.
So, if more than | device has failed, only the one the left side will flicker.
1. Self Diagnosis Screen Display
On-screen display information shows if there occurred any intermittent Failures before,
such as "intermittent no picture", etc. that serviceman cannot confirm the symptom (if
the failure detection circuit has operated before).
<How to Display>
When STAND BY condition, press the remote commander buttons quickly in the se-
quence below.
PA)
Is 5 ]9C
+)
(ON SCREEN
(DIGIT 5)
(VOLUME +)
(my)
DISPLAY)
*Be careful, it's different from the way to
enter in service mode ("VOLUME +") !!
Self Diagnosis Screen
Diagnosed item
Diagnosis
"Q"= No failure detected
SERVICE TEST
"1"= Detected more than once
rH 1:2:13
4:0:5:1
— Note : "1'is displayed, but actually not used.
-30-
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