5 Troubleshooting
LW22A13W
5-7
CONFIDENTIAL
5-4 No Picture (Tuner_CVBS)
Does the signal appear at R2?
Check the DC voltage. (#4 of tuner) : 10V~33V
Change a input board assy. (BN59-00339A)
Power indicator is off,
Lamp on, No picture.
Yes
Yes
No
Connect the RF cable and
check RF signal.
No
Does the signal appear at
C042(#1) of input?
Change FPC cable. (CN101)
Change a input board assy. (BN59-00339A)
Yes
No
Does the clock pulse appear at
3230Y, C_OUT(0:7) of IC010?
IC010 is bad.
Change main board assy. (BN94-00400A)
Yes
No
Does the clock pules appear at
output of IC002~IC005?
IC001 or ICP18 are bad.
Change main board assy. (BN94-00400A)
Yes
No
Does the signal appear at CR01,
CG01, CB01 of R, G, B output?
IC200 is bad.
Change main board assy. (BN94-00400A)
Yes
No
Does the clock appear at
output of RA311~RA313?
IC300 or IC901 are bad.
Change main board assy. (BN94-00400A)
Yes
No
Check a LVDS cable.
Replace a assy LCD panel.
(BN91-00388L)
Please, call to Samsung Co, LTD.
No
19
18
20
21
22
23
Summary of Contents for LW22A13W
Page 14: ...4 Alignments and Adjustments LW22A13W 4 3 CONFIDENTIAL ...
Page 16: ...5 Troubleshooting 5 2 LW22A13W CONFIDENTIAL 1 2 3 4 5 6 7 WAVEFORMS ...
Page 18: ...5 Troubleshooting 5 4 LW22A13W CONFIDENTIAL 8 9 10 11 12 WAVEFORMS ...
Page 20: ...5 Troubleshooting 5 6 LW22A13W CONFIDENTIAL 13 14 15 16 17 WAVEFORMS ...
Page 22: ...5 Troubleshooting 5 8 LW22A13W CONFIDENTIAL 18 19 20 21 22 23 WAVEFORMS ...
Page 24: ...5 Troubleshooting 5 10 LW22A13W CONFIDENTIAL 24 25 26 27 28 29 WAVEFORMS ...
Page 26: ...5 Troubleshooting 5 12 LW22A13W CONFIDENTIAL 30 31 32 33 34 35 WAVEFORMS ...
Page 28: ...5 Troubleshooting 5 14 LW22A13W CONFIDENTIAL 36 37 38 39 40 41 WAVEFORMS ...
Page 30: ...5 Troubleshooting 5 16 LW22A13W CONFIDENTIAL 42 43 44 45 46 47 WAVEFORMS ...
Page 32: ...5 Troubleshooting 5 18 LW22A13W CONFIDENTIAL 48 49 50 WAVEFORMS ...
Page 33: ...CONFIDENTIAL LW22A13W 6 1 6 Exploded View and Parts List ...
Page 110: ...8 Block Diagram 8 1 Main LW22A13W 8 1 CONFIDENTIAL ...
Page 111: ...8 Block Diagrams 8 2 LW22A13W CONFIDENTIAL 8 2 Power LVDS ...
Page 115: ...43 44 CONFIDENTIAL 10 Schematic Diagrams 10 2 LW22A13W 37 38 19 20 25 26 31 32 ...
Page 117: ...CONFIDENTIAL 10 Schematic Diagrams 10 4 LW22A13W 11 12 16 17 22 23 28 29 34 35 40 41 46 47 ...
Page 119: ...10 Schematic Diagrams 10 6 LW22A13W CONFIDENTIAL 49 50 7 48 2 3 4 5 6 ...
Page 121: ...10 Schematic Diagrams 10 8 LW22A13W CONFIDENTIAL 8 9 10 13 14 15 21 45 27 39 33 ...
Page 123: ...10 Schematic Diagrams 10 10 LW22A13W CONFIDENTIAL 1 18 24 30 36 42 ...