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KV-13FM13 / 13FM14
SELF-DIAGNOSTIC FUNCTION
Display of Standby/Timer LED Flash Count
Diagnostic
Item
Flash
Count*
+B
overcurrent
2
times
I-Prot
4
times
IK
5
times
*One
ß
ash count is not used for self-diagnostic.
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to
ß
ash. The number of
times the LED
ß
ashes translates to a probable source of the problem. A de
Þ
nition of the STANDBY/TIMER LED
ß
ash indicators is listed in the instruction
manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review the failure
occurrence data stored in memory to reveal past problems and how often these problems occur.
Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will
ß
ash a set number of times to indicate the possible cause of the problem. If there is more than
one error, the LED will identify the
Þ
rst of the problem areas.
Results for all of the following diagnostic items are displayed on screen. If the screen displays a “0”, no error has occurred.
STANDBY/TIMER LED
2 times
4 times
5 times
LED ON 0.3 sec.
LED OFF 0.3 sec.
LED OFF
3 sec.
Diagnostic Item
No. of times STANDBY/
Display Result
Probable Cause Location
Detected Symptoms
TIMER lamp
ß
ashes
Power does not turn on
Does not light
• Power cord is not plugged in.
• Power does not come on.
• Fuse is burned out (F601) (A Board)
• No Power is supplied to the TV.
• AC power supply is faulty.
+B overcurrent (OCP)*
2 times
2:0 or 2:1
• H.OUT (Q502) is shorted (A Board)
• Power does not come on.
• IC702 is shorted. (CB Board)
• Load on power line is shorted.
I-Prot*
4 times
4:0 or 4:1
• +13V is not supplied. (A Board)
• Has entered standby state after
• IC502 is faulty. (A Board)
horizontal raster.
•
Vertical
de
ß
ection pulse is
stopped.
• Power line is shorted or power
supply is stopped.
IK
5 times
5:0 or 5:1
• Video OUT (IC502) is faulty. (A Board)
• No raster is generated.
• IC1301 is faulty. (MB Board)
• CRT cathode current detection
• Screen (G2) is improperly adjusted. **
reference pulse output is small.
* If a +B overcurrent is detected, stoppage of the vertical de
ß
ection is detected simultaneously. The symptom that is diagnosed
Þ
rst by the microcontroller is displayed
on the screen.
** Refer to Screen (G2) Adjustments in Section 3-4 of this manual.
Содержание FD TRINITRON WEGA KV-13FM13
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