Sharp LC-60LE650U Service Manual

Also see for AQUOS LC-60LE650U: Setup guide Operation manual Setup guide Operation manual Operation manual

LC-60/70/80LE650U/LE657U/C6500U/LE757U/LE857U,60/70LE755U/C7500U6 – 16• Does not sound.No audio (1)INPUT-6 No audio. INPUT-7 No audio. INPUT-5 No audio.Is INPUT-6 selected on the input selectmenu screen?Is INPUT-7 selected on the input selectmenu screen?Is INPUT-5 selected on the input selectmenu screen?YESNOYESNOYESNORefer to “: No external inputvideo [INPUT-6]”.Refer to “: No external inputvideo [INPUT-7]”.Refer to “: No external inputvideo [INPUT-5]”.Is the audio output selected for “VARI-ABLE” on the menu screen?Is the audio output selected for “VARI-ABLE” on the menu screen?Is the audio output selected for “VARI-ABLE” on the menu screen?YESNOYESNOYESNOSet the audio output to“FIXED”.Set the audio output to“FIXED”.Set the audio output to“FIXED”.Does the audio signal come from pins (8)(L) and (7) (R) of input terminal (J510) topins (AP34) (L) and (AU36) (R) of IC3301(CPU)?Does the audio signal come from pins (3)(L) and (2) (R) of input terminal (J510) topins (AR37) (L) and (AT36) (R) of IC3301(CPU)?Does the audio signal come from pins (13)(L) and (12) (R) of input terminal (J510) topins (AT37) (L) and (AT35) (R) of IC3301(CPU)?YESNOYESNOYESNOCheck the line between J510and IC3301.Check the line between J510and IC3301.Check the line between J510and IC3301.Does the digital audio signal come from pins(AR11/AP11/AN9)(CPU_AOBCK/AOLRCK/AOSDATA0) of IC3301(CPU) to pins(6/7/5)(SP_BCLK/SP_LRCLK/SP_DATA) of IC1703(Audio DSP)?YESNOCheck the line between IC3301 and IC1703, and their paripheral circuits.• About the L/R Speakers.Does the digital audio signal come from pins (30/21/26/27) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1902 (AMP for L/R)?• About the Subwoofer speaker.Does the digital audio signal come from pins (30/21/26/28) of IC1703 (Audio DSP) to pin (5/7/8/6) of IC1901 (AMP for SW)?YESNOCheck IC2701 and its paripheral circuits.(X2701, etc.)• About the L/R Speakers.Is the audio output from IC1902 as specified?• About the Subwoofer Speaker.Is the audio output from IC1901 as specified?YESNO• About the L/R Speakers.Check IC1902 and its peripheral circuits.• About the Subwoofer Speaker.Check IC1901 and its peripheral circuits.• About the L/R Speakers.Check the connector (P1903) L/R speakers and their peripheral circuits.• About the Subwoofer Speaker.Check the connector (P1904), subwoofer speaker and their peripheral circuits.