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AE-5 SELF DIAGNOSTIC SOFTWARE
The identification of errors within the AE-5 chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event
of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with continuous flashing LED) and
then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be dis-
played through the LED (Series of flashes which must be counted) See table 1., non fatal errors are reported using this method.
ERROR
LED
ERROR
COUNT
No error 00
Not allowed (may be confused with S rcs response
flash!)
01
Over Current Prote ti n 02
Over Voltage Protectio 03
Vertical Protec ion 04
AKB 05
H - Protectio 06
Speak r Protection 07
Ge eral IIC Line 0 error 08
MEGATEXT 09
NVM 10
Main colour decoder 11
Feature Box 12
D/A converter 13
Backend 14
Multi sound processor 15
Auto Wide 16
External RAM 17
StBy LED
ON ON ON
OFF OFF
Flash Timing Example : e.g. error number 3
Diagnostic Item
Description
No of times Standby
LED Flashes
Probable cause
Location
Detected Symptoms
Power does not turn on Does not light Power cord is not plugged in
Fuse is burned out
Power does not come on
No p wer is supplied to the TV
AC power supply is faulty
+B Overcurrent (OCP) 2 times H.OUT (Q6803/6804) is shorted. (D Board)
Linearity FET (Q6806) is shorted. (D Board)
IC6604 Power IC is shorted. (D Board)
Pow r do s not come on
Lo d on power line has shorted
Vertical Deflection stopped 4 times +15V is not supplied R6835 ope (D Board)
-15V is not supplied R6834 open (D B ard)
IC6700 is shorted (D Board)
Vertical deflection pulse has stopped
Power line has shorted
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