CLD 1541 Speed Control Installation Manual
Contents
1. locate the brown PC ntiometer to control the drive It is generally blue and yellow with a cross slot on potentiometer und some boards wit top resistor in labeled as turn the knob fully counter trol lead Simply load attach the tempt to load the Parameter Check Target Speed option and referring to your Maverick documentation if necessary try to determine if the speed is in approximate range If not again refer to your Maverick Documentation and adjust the potentiometer to suit If you are unable to load the Maverick to preform the speed check we suggest that you disconnect one microclip Load the Maverick the Parameter Menu the Check Target Speed option again reconnect the mi in some cases the potentiometer it in any convenien case or a small notch cut in Once the speed has been use the double sided tape on then and load in any 8K Needed Parameter While using This may reassemble the set t location disk drive croclip and adjust take a little hit and miss You may the bottom of your Speed Control to mount Lead the wire out the back of your drive to the case Spring Door Model 1541 Turn your disk drive over and use a small phillips screwdriver to remove the four screws securing the drive cover When done lift the plastic cover from your drive and put aside If necessary remove the RF shield Next remove the six screws2. that hold the drive chassis to the bottom half of the plastic case Carefully lift and remove the ntire drive assembly from the plastic case taking care not to drop it Disconnect any wires preventing the operation noting their position for future re connection Next remove the screws we counted seven holding in the large PC board on top of the drive chassis Again disconnect and note the position of any wires preventing the removal of the board Next remove the drive unit from the chassis by unscrewing the four screws holding it in place These are located at both sides of the chassis Carefully lift and remove the drive unit by sliding it forward and out of the chassis Turn the drive unit over and locate the potentiometer in location VR1 In front of the potentiometer locate the resister at location R2 Before installing the Speed Control Before installing the Speed Control turn the knob fully counter clockwise and then rotate clockwise about 10 degrees The Speed Control device has two microclips on each wire lead Simply attach the microclips on each end of resistor R2 We suggest that you position the clips in the best possible direction and lead the wires towards the rear of the drive unit using masking tape to secure the wires from harm Using care assemble the drive together in a loose fashion as you may need to access the potentiometer at VR1 Connect all ca
3. 1541 SPEED CONTROL A MAVERICK ACCESSORY Please note that there are two basic drive types as far as we are concerned These ar those drives with the spring latch ho disk and the type with the toggle latch Both are set in same way but the speed potentiometer is found in different that we have located and identified a 1541 II model that has Also note NO potentiometer We drive problem Toggle Door Model 1541 1541C 1451 II Turn your disk drive over and use a small phillips screwdriver to remove the four screws securing the drive cover plastic cover from the metal RF Shield in place remove Towards the front of the drive lift it off also board That board speed Directly in front location R4 R12 Before ins tal clockwise and then rotate clockwise about 10 degrees The Speed Con on each wire tor R4 or R12 device has two At this point with the drive still open you may at loads successfully Menu and then load any 8K RAM Needed parameter Using the the Maverick If t We have fo ling the Speed Control microclips microclips on both ends of resist lding in the exactly the t locations currently have no solution to that particular your drive and put contains the pot of the he software identify the th this resistor When done lift the aside Next if you still have the two screws that secure it and
4. bles and before powering up double check that no shorts are visible in the system Now attempt to load the Maverick If the software loads successfully load the Parameter Menu and then load any 8K RAM Needed parameter Using the Check Target Speed option and referring to your Maverick documentation if necessary try to determine if the speed is in approximate range If not you will have to again disassemble the drive and adjust the potentiometer at location VRI When all is well reassemble the disk drive You may use the double sided tape on the bottom of your Speed Control to mount it in any convenient location Lead the wire out the back of your drive case or a small notch cut into the case The 1541 Speed Control is c copyright 1989 Chip Level Designs DISTRIBUTED BY Software Support International 2700 N E Andresen Rd Suite A 1 Vancouver Washington 98661 Order Line 1 800 356 1179 Technical Line 206 695 9648
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