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KLV-20/32/37/40S400A (CH) 6
SELF DIAGNOSIS FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to flash.
The number of times the LED flashes translates to a probable source of the problem.
A definition of the STANDBY LED flash 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.
The number of times the LED flashes translates to a probable source of the problem.
A definition of the STANDBY LED flash 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.
1-1. DIAGNOSTIC TEST INDICATORS
When an error occurs, the STANDBY LED will flash 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 first of the problem areas.
Result for all of the following diagnostic items are displayed on screen.
If the screen displays a “0”, no error has occurred .
If there is more than one error, the LED will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen.
If the screen displays a “0”, no error has occurred .
Number of times
Monitoring Items
STANDY LED
(Screen Display)
Diagnostic Item Description
(Red) flashes
2 times
DC_DET
Power supply voltage error
3 times
DC_ALERT 1
Confirm the voltage at F7016 is about 3.3V and F7016 is not
open.
Confirm the voltage at F7015 is about 5V and F7015 is not
open.
open.
Confirm the voltage at F7015 is about 5V and F7015 is not
open.
4 times
DC_ALERT 2
Confirm the voltage at F7017 is about 1.8V and F7017 is not
open.
Confirm the voltage at C7110 is about 5.5V and F7012 is not
open. (Only applicable for AM series)
open.
Confirm the voltage at C7110 is about 5.5V and F7012 is not
open. (Only applicable for AM series)
5 times
DC_ALERT 3
Confirm if F7003 is open.
Confirm voltage at either pin 5, 6, 7 or 8 of IC7009 is the
following:
12V
Confirm voltage at either pin 5, 6, 7 or 8 of IC7009 is the
following:
12V
6 times
BACKLIGHT/INVERTER ERROR
Confirm if input to Q9008 is about 3.3V.
7 times
INTERNAL TEMP ERROR
If internal temperature of the LCD set increases over 70
°
C
it will shut down and the set goes to standby.
8 times
AUDIO ERROR
Confirm the correct value at AU_13V, AU_12V (=10V).
Confirm the speaker is OK, speaker terminal is not shorted to
GND.
Change IC2007 to a new one.
Confirm the speaker is OK, speaker terminal is not shorted to
GND.
Change IC2007 to a new one.
9 times
FAN ERROR
Fan error.
10 times
DEF ERROR
Digital EF circuit error.
11 times
NVM ERROR
NVM is broken.
No power supply to NVM.
No power supply to NVM.
12 times
IIC ERROR
No communication between IC9000 and IC3000.
13 times
BALANCER ERROR
Confirm if input to Q9009 is about 3.3V.
14 times
HDMI ERROR
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