Dual 1210 Service Manual EN

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Fig. 1 Tonearm hookup schematic right channel left channel j-.. channel 1 channel 2 } -------, , .... '1 l '-r--1 r:-::--~--( -------.. --1 --- I j---r l 1 I 1----"1 _::>I red fl r 1. White } I<:_ t-----1 : 1 I I I I --- 1.--( - 1a.------- ---1 -- I L--~ I ~,... ........ --.J L.-----J I I I I L------... '-...J J L----------L I ( J 1 I i:-- Tonearm audio lead l 1----------~ t I I I I L_r-----t1J tonearm junction board a 1 1 Oz 1 ___ __:i~~~c~~- i 1 --, I I I Oz I I _ __.,.r1 I I I I I I I , I I I I o, __ .. i I ' i I I I L _____ ------ __J I I I I I I I I I I I I channel 1 1 1 I 1 1 channel 2 red I white I I I I I I 1 I I I tonearm I I I circuit J Q Z a) with miniature 5-pin plug channel 1 red lead b) with phono plug -1 1 I red ~ ·r--- 1 I ~ ~ yellow c) with banana plugs channel 1 = red channel 2 = yellow common = black ground =green contact plate at plug-in head · - · -,_-- plug-in head phonograph record plug-in head with cartridge -4-----1 inner side of groove left channel 2 spring contacts between ~ - ----- plug-in cartridge head o, and tonearm outer side of groove right channel

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Contents Technical data Tonearm hook-up schematic Motor and drive Turntable does not turn when unit plugged in and "start" switch operated Turntable does not come up to speed Assembly noise Correct speed obtained only by extreme adjustment of fine speed adjustment Variable pitch control Tonearm bearing - Tracking force Tonearm operation Muting switch Tonearm set-down and lift Stylus skips Tonearm sets down beside tonearm rest Horizontal pivot friction too high Vertical movement of tonearm is impeded during set-down Tonearm misses edge of record Tonearm strikes record during change cycle Tonearm does not move onto record when drop cycle is started Tonearm lowers too quickly when drop cycle Is started Tonearm returns to rest immediately after being placed on record manually Last record keeps repeating Start cycle Manual start Stop switching Shut-off and change cycle Record drop Shut-off Record does not drop when unit is switched to "start" Turntable stops after autom atic setdown of tone arm Record drops when unit is switched to "stop" Switch latch es into "stop" position when ton earm is at rest Records do not drop During change, stop and start operations , noi ses from the mechani sm can be heard No sound, muting switch does not open Motor will not shut off when tonearm is on arm rest Acoustic feedback Replacement parts and exploded view Lubrication 3 Page 2 4 5 5 5 5 6 6 6 7 7 8 8 8 8 8 8 8 8 8 8 9 9 10 10 10 11 11 12 12 13 13 13 13 13 13 14-19 19-2 0