LC-52XL1E (serv.man3). Adjustment Procedure - Sharp TV Service Manual (repair manual). Page 20

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LC-46XL1E/RU, LC-52XL1E/RU
4 – 20
LED blinking timing table
FRC-UNIT (DUNTKE046FE02) circuit failure (1)
                                    
No sound or picture come out.
The screen is overall abnormal.
                                    
Confirm whether the power supply is defective.
Are 12V input to P4802?
Confirm whether 12V is output from CN8 (FL).
YES
                                 YES
Are 3.3V output from pin2 of IC4803?
Are 2.5V output from pin2 of IC4802?
Are 1.2V output from pin2 of IC4801?
Are 1.25V output from pin8 of IC6004?
Confirm the IC6341 (FPGA) circuit.
Is the clock output from X6341 at 33MHz cycle?
Confirm the surrounding of IC6342 (PROM).
Confirm the surrounding of IC6341 (FPGA).
YES
YES
Confirm the IC5801 (FRC) circuit.
Is the clock output from X5801 at 27MHz cycle?
Confirm the surrounding the IC5801 (FRC).
FRC-UNIT (DUNTKE046FE02) circuit failure (2)
The screen is horizontally displayed only at intervals of one.
The display of putting of one is abnormal.
A horizontal even number line is abnormal ..not going out...
A horizontal odd number line is abnormal ..not going out...
Check the surrounding of IC6281(LVDS_RX_even).
Check the surrounding of IC6282(LVDS_RX_odd).
FRC-UNIT(DUNTKE046FE02) circuit failure  (3)
The screen upper half is abnormal ..not going out...
The screen lower half is abnormal ..not going out...
Check the connection of SC6211.
Check the connection of SC6212.
Check the surrounding of IC6212(LVDS_TX_upper).
Check the surrounding of IC6211(LVDS_TX_lower).
250ms
1sec
Type of error
Kind of LED
Power LED operation (1 cycle)
Remarks
H:OFF
Lamp error
STANDBY LED
Blinking once
L:ON
H:OFF
Lamp error
STANDBY LED
Blinking once
At five time accumulation
L:ON
H:OFF
The lamp is turned off
SLEEP TIMER LED
Blinking once
when it is abnormal usually.
L:ON
H:OFF
Power error
STANDBY LED
Blinking twice
L:ON
H:OFF
Temperature error
STANDBY LED
Five time blinking
L:ON
H:OFF
FAN error
STANDBY LED
Seven time blinking
L:ON

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