NEC PlasmaSync 50MP1 User Manual page 75

2-4. No video pictures available even with any input selection
Apply an NTSC gray scale input to the VIDEO 1input
circuit and select VIDEO Input1.
Is the ON-screen display presented?
Are the signals of 3Vp-p applied to the signal input pins
(signal names: REV_LVDS, RODD_LVDS, etc.) of
IC9403 and IC9404?
Are pulses (of the video signal) of 3Vp-p applied to Pins
130 to 185 (Except for the GND pin) of IC8502?
Are pulses (of the video signal) of 3Vp-p applied to Pins
190 to 244 (Except for the GND pin) of IC8502?
Are pulses (of the video signal) of 3Vp-p applied to Pins
54 to 122 (Except for the GND pin. Check the through
holes, etc. to see whether the waveform appears at the
terminals of IC8005) of IC8003?
Are pulses (of the video signal) of 3Vp-p applied to Pins
200 to 12 (Except for the GND pin. Check the through
holes, etc. to see whether the waveform appears at the
terminals of IC8005) of IC8003?
Are pulses (of the video signal) of 3Vp-p applied to Pins
21 to 88 (Except for the power supply and the GND pin)
of IC6501?
NO
YES
NO
NO
NO
NO
NO
NO
(1)-1
Go to "Pictures and ON-screen
display not available."
YES
IC9403, IC9404, and peripheral circuits,
or the AD connectors are out of order.
YES
IC9000 and peripheral circuits are out of
order.
YES
IC8502 and peripheral circuits are out of
order.
YES
IC9000 and peripheral circuits are out of
order.
YES
IC8003 and peripheral circuits are out of
order.
YES
IC7501 and peripheral circuits are out of
order.
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