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KUZMA STOGI REF 313VTA TONEARM

Instruction manual Serial Number: …..

2009-11

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Содержание 313VTA

Страница 1: ...1 KUZMA STOGI REF 313VTA TONEARM Instruction manual Serial Number 2009 11 ...

Страница 2: ...ral description 3 Basic Setup 4 Setting up the tonearm 4 5 Adjustment of tracking force 6 Adjustment of tangential geometry 6 Adjustment of VTA 6 Adjustment of azimuth 7 Adjustment of bias 7 Adjustment of cueing device 8 Maintenance 8 Transport 8 Problems 8 Appendix 1 tangential geometry 9 11 Appendix 2 fine azimuth 12 Appendix 3 fine bias 13 Protractors 14 VTA tower knob VTA lock azimuth lock Cue...

Страница 3: ...re of the tonearm is a unique detachable headshell The electrical connection is via standard pins but the headshell can be simply removed by unscrewing with an Allen key The headshell is fixed with a precise hexagonal locking system giving the same rigidity as with a fixed headshell The tonearm itself is mounted in the standard position despite its longer effective length Technical data Mass 1700 ...

Страница 4: ...t the height is such that the bottom surface of the platform holding the cueing device is at the same height as the record Fix it with an Allen key Also check that the VTA adjustment is in the middle position to allow fine VTA adjustment up and down 5 mm each way With 1 5 mm Allen key release the small ring which is on the fixing pillar below the VTA arm tower Now it will drop down and touch the a...

Страница 5: ...idge pins remove Allen key and pull out the headshell Fig 4 Fix the cartridge and return headshell back in to the tube If it can not be inserted easily rotate the screw a little more in ACW direction Then fix it back in CW direction with gentle force around one turn Fig 2 Locked Fig 3 Unlocked Note Do not over tighten the screw which locks the headshell Fig 4 Removing headshell Balancing of the to...

Страница 6: ... the two null zero points See appendix 1 6 Adjustment of VTA It is extremely easy to set up VTA on this tonearm Just unlock the lever at the back and rotate the VTA knob VTA knob rotation CW VTA down Fig 1 VTA adjustment between any two lines is 0 1 mm the whole rotation is then 0 8 mm which allows for very fine repeatable adjustment The rigidity of the assembly is such that even in the unlocked p...

Страница 7: ...be Even 15 degrees rotation of the Allen key will make a significant difference See appendix 2 8 Bias The bias should be adjusted roughly according to the tracking force Using Allen key 1 5 mm unlock the screw on the bias weight and position it to the equivalent of gap X to your chosen tracking force Lock the screw back when in position Fig 6 Bias adjustment For maximum tracking it is advisable to...

Страница 8: ...e the screw Fig 1 10 Maintenance The bearing does not need maintenance Clean dust from the tonearm with a soft cloth 11 Transport During transport the tube should be locked in the armrest and counterweight removed 12 Problems 1 Cartridge jumps in the inner grooves See if the tube can travel towards the centre of the record check that position of the tonearm is correct with protractor for distance ...

Страница 9: ...n this case 60 mm has been chosen as the inner groove and 146 mm as the outer groove which still has optimum tracking distortion 1 Ensure bias is on minimum or switch off 2 Place protractor over spindle on platter Note If you have difficulty seeing the cantilever it may help to raise the arm a few mm taking care that the protractor does not rotate This also prevents tilting of the cantilever due t...

Страница 10: ...15 Alignment at B 8 If the cantilever is not in alignment then rotate protractor until it is in alignment somewhere along the line x y though stylus will probably not be at zero point B Raise the cueing device a bit for better viewing Fig 15 9 If stylus is in front of point B pull the cartridge forward along side in the slots of the headshell for approximately the same distance S as stylus is over...

Страница 11: ...will be at zero point B If stylus end up behind the zero point B on line x y then move cartridge in opposite direction to before backwards and realign it at zero point A If stylus is still behind the B point the cartridge should be pushed back and realign at zero point A and realigned again at zero point B 12 Continue until the stylus is in alignment at both points REMEMBER STEPS a Put stylus at z...

Страница 12: ...y of the instruments Release the two locking screws and rotate the Allen key so that tube rotates for approximately the width of the mark Listen and then rotate tube for a similar amount in the opposite direction and again listen Adjust the arm to the position in which the best sound was obtained In this position make further adjustments by turning the Allen key for a quarter turn in one direction...

Страница 13: ...ctions on test record 2 If mistracking is apparent increase or decrease bias until minimum mistracking is found If mistracking is heard on the right channel only then the bias is too low if on both channels the bias is too high or the trackability limit of the cartridge has been reached 3 Finally further decrease mistracking by increasing tracking force to the maximum Recommended for the cartridge...

Страница 14: ...14 Cartridge Protractor Not in correct scale Tonearm mounting protractor A X Y S B X Y ...

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