X400 oscillate properly?
5 Troubleshooting
5-4
GS17VS/GS17VT/GS19VS/GS19VT/
GS15MS/GS17MS/GS19MS
1
WAVEFORMS
2
3
5-3 No Video
1
Replace or check related circuit.
Check signal cable connection and power.
Yes
No
Is there R, G, B input at R100,
R101 and R103?
Check input part.
Yes
No
Is there Hsync, Vsync waveform
at Pin 100, 1 of IC 400?
Check IC400 and related circuit.
No
Yes
Is there Hsync, Vsync waveform
at Pin 43, 44 of IC 200?
Check IC200 and related circuit.
No
Yes
Does the output signal appear
at Pin 17~20, 22~27 of CN400?
Check IC400 and related circuit.
No
Yes
There are DC 5V at Pin 1, 2
and 3 of CN400?
Check the panel EN signal at R222
and BL_EL signal at R603.
No
Yes
Replace LCD Panel.
2
2
3
3
Summary of Contents for 73V
Page 14: ...3 Disassembly and Reassembly 3 4 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS Memo ...
Page 18: ...4 Alignments and Adjustments 4 4 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS Memo ...
Page 24: ...6 Exploded View Parts List 6 2 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS 6 2 GS17VT ...
Page 25: ...6 Exploded View Parts List GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS 6 3 6 3 GS19VS ...
Page 26: ...6 Exploded View Parts List 6 4 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS 6 4 GS19VT ...
Page 27: ...6 Exploded View Parts List GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS 6 5 6 5 GS15MS ...
Page 28: ...6 Exploded View Parts List 6 6 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS 6 6 GS17MS ...
Page 29: ...6 Exploded View Parts List GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS 6 7 6 7 GS19MS ...
Page 30: ...Memo 6 Exploded View Parts List 6 8 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS ...
Page 46: ...8 Block Diagrams 8 2 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS Memo ...
Page 48: ...Memo 9 Wiring Diagram 9 2 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS ...
Page 52: ...Memo 10 PCB Layout 10 4 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS ...
Page 54: ...11 Schematic Diagrams 11 2 GS17VS GS17VT GS19VS GS19VT GS15MS GS17MS GS19MS 1 2 3 ...