Sharp LC-32LE260M, Руководство по обслуживанию

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LC-32LE260M
5 – 2
With [RF] signal input No video onscreen (1)
No video in the UHF/VHF reception
Is there IF output from the tuner pin( 8 ) of TU1101 as specified? NO Check TU1101 and its peripheral circuits.
YES
Is there VIF input at pin 51 & 52 of IC3301? NO Check the circuit between TU1101 & IC3301.
YES
Are there the signal outputs of IC3301(pin 33) ? NO Check IC3301 and its peripheral circuit.
YES
With <Video> signal input No video onscreen (3)
No external input video onscreen <INPUT 3>
Is INPUT 3 selected on the input select menu screen?
NO Select INPUT 3 on the input select menu screen to pick up the
right input signal.
YES
Is there the video signal input at pin (31 ) of IC3301? NO Check the line between pin (7) of TL509 and pin (31) of IC3301.
YES
Are there LVDS signal outputs of IC3301 at pin 61-64 and pin
66-71
NO Check IC3301 and its peripheral circuits.
YES
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits.
Are there LVDS signal outputs from IC3301 at pin 61-64
and pin 66-71
?
NO Check IC3301 and its peripheral circuit.
Check LVDS cable, LCD controller (incl. panel) and their periph-
eral circuits.
YES