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KLV-46/52X300A, 46/52W380A (CH)     3-3

TV micro (on AG board) is monitoring BE Micro (on FB2 board) are alive or not like 
watch dog timer. When BEM has not boot up, TVM try to re-start. We can see chassis
reboot at this case. Check FB2 board has correct power or not.

-

FB2 board

-

CN 5600 12V, 6.5V power and harness to GF1(GF2) Board.

-

F4100, F4102, F5200  conduction.

If power rail has no problem, replace FB2 board.

3-2. Set Reboots

KLV-46/52X300A, 46/52W380A (CH)     3-4

Panel Balancer Error

BALANCER

13

FAN Error (Not Detected. Display Only)

FAN_ERR

9

Temperature Abnormal Detection

TEMP ERR

7

Audio Abnormal Detection

AUD PROT

8

Back Light Error (Panel Inverter)

BACKLITE

6

T-CON Error

T_CON

5

Power Error

POW ERR1

3

Main Power Over Voltage Protection

POW OVP

2

Contents

Display 

(Self Diagnosis mode)

Red LED

Blink

When self diagnosis happens, STANDBY (RED) LED blinks and 

the history can be seen on display by self diagnosis mode.

3-3. SELF DIAGNOSIS

KLV-46/52X300A, 46/52W380A (CH)     3-5

NO

2 Times

YES

See  
3-3-2. POWER OVP
(RED 2 times blink)

RED LED Blinks

NO

3 Times

YES

See  
3-3-3. POWER ERROR
(RED 3 times blink)

NO

5 Times

YES

See  
3-3-4. T-CON ERROR
 (RED 5 times blink)

NO

6 Times

YES

See  
3-3-5. BACK LIGHT ERROR 
(RED 6 times blink)

NO

7 Times

YES

See  
3-3-6 TEMP ERR
(RED 7 times blink)

NO

8 Times

YES

See  
3-3-7 AUDIO ERROR
(RED 8 times blink)

13 Times

YES

3-3-1. Flow Chart_C  

(Standby Indicator)

See  
3-3-9. BALANCER ERROR
(RED 13 times blink)

KLV-46/52X300A, 46/52W380A (CH)     3-6

This indicates POWER Error, Low B error of 12V from GF1(GF2) board. TV Micro
(on AG board) pin150 detects POWER_ERR and shuts down chassis power to Stand-
by status.

TV Micro #150

Normal condition : High  /   Error case : Low

- Check 12V at CN002 #1#2 on AG board. And F200 on AG has 12V or not

- Check GF1(GF2) board.

3-3-3. POWER ERROR (RED 3 Times blink) 

This indicates OVP (Over Voltage Protection) of GF1(GF2) board.

12V line or 6.5Vline on GF1(GF2) board is over-voltage.

TV Micro (on AG board) pin139 detects OVP ERR and shuts down chassis power to

 

Stand-by status.

TV Micro #139

Normal condition : Low  /   Error case : High

Replace GF1(GF2) board.

3-3-2. POWER OVP (RED 2 Times blink)