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9. TROUBLE SHOOTING GUIDE
9.1. Simple check
No Picture, no sound
Verify if the television is properly plugged
Verify if the television is properly supplied power
Verify if electricity is available
Blank screen
Verify if correct signals are input
Press INPUT button to change signal input to TV input
Restart the television of power supply is interrupted
No sound
Press Mute button and verify if Mute mode is set.
Switch to other channel and verify if the same problem happens.
Press VOL+ button to see of he problem can be solved.
Poor sound
Verify if sound system is correct .Refer to some chapter for adjust.
No picture in some channel
Verify if correct channel is selected.
Adjust the antenna.
Make adjustments by Fine Tune and MANUAL Scan.
No color for some channel
program(black and white)
Verify if the same problem exists in other channels.
check out of picture and sound system.
Refer to relative instructions in the Manual for color adjusts.
Spots with some or all pictures
Verify if the antennal is correctly connected.
Verify if the antennal is in good condition.
Make fine adjustment of channel.
Horizontal/vertical bars or picture
shaking
Check for local interference such as an electrical appliance or
power tool.
Television out of control
Disconnect the television from power supply and 10 seconds
later, connect the television to the power supply. If the problem
still exists, contact authorized after-sales service for technical
assistance.
9.2 Power Supply Board failure check
Summary of Contents for NS-L19W2Q-10A
Page 13: ...13 Connector definition ...
Page 14: ...14 ...
Page 15: ...15 4 Disassemble and assemble 4 1 Remove the Pedestal 4 2 Remove the Front Cover ...
Page 16: ...16 ...
Page 17: ...17 4 3 Remove the LCD panel 4 4 Remove the Main Board ...
Page 18: ...18 4 5 Remove the Power Board 4 6 Remove the Speaker ...
Page 19: ...19 4 7 Remove the Keypad Assembly 4 8 Remove the Remote Control Board ...
Page 20: ...20 5 INSTALLATION INSTRUCTIONS Accessories Remote Control User Manual Battery YPbPr wire ...
Page 21: ...21 ...
Page 22: ...22 ...
Page 23: ...23 6 OPERATION INSTRUCTIONS Basal information 6 1 Front panel controls ...
Page 24: ...24 6 2 Back panel controls ...
Page 25: ...25 6 3 Setting up Your Remote Control ...
Page 27: ...27 White Balance Color Temp Picture Mode Setting Audio Mode Setting SSPLL Setting ...
Page 29: ...29 7 3 Audio 7 4 CHANNELS ...
Page 30: ...30 7 5 SETTINGS 8 Electrical parts 8 1 Wiring Connection Diagram ...
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Page 52: ...35 State No picture ...
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