Denon DHT-1312XP Service Manual

Also see for AVR-1312: Brochure & specs Getting started Brochure Owner's manual Getting started

Contents

Denon DHT-1312XP Service Manual Manual pdf 33 page image

33YESYES YES YESNONONOIs the ON/STANDBYindicator on the front panelflashing red?Does the power turn onwhen the POWER switch isturned off then back on?Check the primary circuitryparts including the POWERswitch(for poor contacts,etc.), and replace anydefective parts.Check the microprocessorperiphery circuitry andreplace any defective parts.Check the circuitry and partsfrom BN43 on the MAINB'd to the microprocessorfor damage and short-circuits,and replace anydefective parts.Is a DC 5V voltage beingsupplied from the MAIN B'dto the microprocessors?Is a DC5V voltage outputwhen the cord supplying thepower from the MAIN B'd tothe microprocessor(BN43)is unplugged?Is the fuse blown? Refer to "1.2. Fuse is blown".Power not turn on.Are there any incompleteconnections in theconnectors connectingbetween the various circuitboards?Correct the shortcircuit between thespeaker and ground.Connect the connectorsproperty.Is there a short circuitbetween the speakerterminals and the ground?Check for damage in thepower amplifier circuitryparts and replace anydefective parts.Check the parts fromIC45 to the primarycircuitry and replaceany defective parts.YESYESYESNO NONONOTROUBLE SHOOTING1. POWER1.1. Power not turn onCheck for leaks or shortcircuits in the primary sideparts and replace anydefective parts.Fuse is blownCheck for short circuits in therectifier diodes and circuitry ofthe secondary side rectifyingcircuits and replace anydefective parts.After repairing, also replace the fuse.Check for short circuits inthe power stabilizer unit'sregulator output terminal andthe ground and replace anydefective parts.1.2. Fuse is blown