Denon DVD-756 Service Manual

Also see for DVD-1920: Operating instructions Opertating instructions Specifications Service manual Operating instructions

Contents

24DVD-1920/756FLOW CHART NO.23Audio is not outputted. (JK7101)Set the disc (with 5.1ch Audio) on the disc tray, and playback.Are the analog audio signals outputted to each pinof CN7102 on 5.1ch Amp CBA.CN7102 15PIN FRONT(L)CN7102 13PIN FRONT(R)CN7102 11PIN SURROUND(L)CN7102 9PIN SURROUND(R)CN7102 7PIN CENTERCN7102 5PIN SUBWOOFERIC7301 2, 6PIN FRONT(L/R)IC7401 2, 6PIN SURROUND(L/R)IC7501 2, 6PIN CENTER/SUBWOOFERReplace the DVD Main CBA or DVD Mechanism.Replace ICs ( IC7301, IC7401 or IC7501) .Check each line between each pin of CN7102and each pin of IC7301,IC7401 and IC7501and service it if defective.CN7102 15,13PIN → IC7301 2,6PIN FRONT(L/R)CN7102 11,9PIN → IC7401 2,6PIN SURROUND(L/R)CN7102 7,5PIN → IC7501 2,6PIN CENTER/SUBWOOFERAre the analog audio signals inputted to each pinof IC7301, IC7401 and IC7501.Are the analog audio signals outputted to each pinof IC7301, IC7401 and IC7501.IC7301 1,7PIN FRONT(L/R)IC7401 1,7PIN SURROUND(L/R)IC7501 1,7PIN CENTER/SUBWOOFERYesYesNoNoNoCheck each line and service it if defective.NoReplace the DVD Main CBA Unit.NoYesDo the mute signals of CN7102 on 5.1ch AmpCBA become to "H" level?FRONT(L) → CN7102 14PINFRONT(R) → CN7102 12PINSURROUND(L) → CN7102 10PINSURROUND(R) → CN7102 8PINCENTER → CN7102 6PINSUBWOOFER → CN7102 4PINYesIs the analog audio signal of each line outputted toeach terminal of JK7101 (as shown below) ?IC7301 1PIN → JK7101 FRONT(L)IC7301 7PIN → JK7101 FRONT(R)IC7401 1PIN → JK7101 SURROUND(L)IC7401 7PIN → JK7101 SURROUND(R)IC7501 1PIN → JK7101 CENTERIC7501 7PIN → JK7101 SUBWOOFERwww. xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com