4. FAILURE DIAGNOSIS PROCEDURE
This model is equipped with self diagnosis function inside for trouble shooting.
4-1.Contents to be Confirmed by Customer
Table 2
Contents of self diagnosisDisplay items and actual operation
Set Power does not turn on by power-key, or it turns offPower indicator lamp blinks and picture does not come.
automatically.1.Power indicator red lamp blinks. (0.5 seconds interval)
1.When power protection circuit operates;2.Power indicator red lamp blinks. (3 seconds interval)
2.When FAN STOP was detected:3.Power indicator red lamp blinks. (5 seconds interval)
3.When failure of Audio cirTROUBLESHOOcuit was detected:TING DIAIf these indicaGNOSIS FUNCTIONtions appear, repairing work is required.
DIAGNOSIS FUNCTION FOR LED INDICATION
LEDCAUSE
LED is lit in 1 second at in-Short-circuit detection of BUS line
tervals of 1 second.
BUS line may possibly be short-circuit (SDA to SCL), or BUS line (SDA, SCL)
is grounded.
LED is lit in 0.5 at intervalsOvercurrent limiter detection
of 0.5 second.
POWER terminal on TV microprocessor becomes LOW at 2 seconds or more.
LED is lit in 0.25 second atInterruption of FAN motor function detection
intervals of 2 second.
No. 53 terminal on TV microprocessor becomes HIGH for 30 seconds.
LED is lit in 5 seconds at in-Abnormal sound detection
tervals of 5 seconds.
P4 terminal of QS10 becomes LOW for 15 seconds during Speaker is acti-
vated.
High : Lighting Low : No Lighting
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ACEC
