Samsung UN32D6500VF, Руководство по обслуживанию

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4-15
4. Troubleshooting
4-1-5. No Video (Tuner DTV)
N
Refer to the next page to check the location such a CN201 or IC201 SVC Manual mentioned.
Symptom Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the DTV source.
-
Check the Tuner, Check the Valencia.
-
This may happen when the LVDS cable connecting the Main Board and the Panel is
-
disconnected.
Diagnostics
MAIN BOARD
SMPS BOARD
T-CON
Input the RF source properly.
Check the D-TV source.
Check Tuner and IC801(Arsenal).
Change the Main Assy.
Please, contact Tech support.
Change the Main Assy.
Check IC1001(GenoaS) and
IC2001(Parma).
Change the Main Assy.
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Power indicator LED is off.
Lamp(Backlight) on, no video ?
Check a set in the ‘Stand-by mode’.
No
Yes
Check the RF source and
check the connection of RF cable ?
Check the ‘signal strength’ in Self
Diagnosis menu Strength is enough ?
Check the CHIF output of IC801 ?
Pin #10 of Tuner : DIF+
Pin #11 of Tuner : DIF-
Check the LVDS cable?
Replace the T-con / LCD panel?
Check the Power of Tuner ?
Pin #4 of Tuner : B3.3V_Tuner
Pin #2 of Tuner : B1.8V_Tuner
Check the LVDS clk signal at output of
Main board ? (TX)
TX2_CLK : LV_TX2_DN/DP
TX4_CLK : LV_TX4_DN/DP
1
2
2
2
Caution Make sure to disconnect the power before working on the IP board.