This is the original manufacturers service manual, with detailed info on the circit boards, explosion drawings of all parts in assembly order, and tuning instructions. The only thing missing is the information on the dimensions of the various drive belts. mail me if you need them. gcrossman_at_aol.com
This service manual for the Kenwood KT-990D was reproduced really well ,is very legible and manual is complete.Combined with the low price paid,in the future,I will be checking Owner-Manuals.com any time I need a manual.
Text excerpt from page 142 (click to view)
[5] Lower the roller holder assy and push the set buttons in the direction of the arrows to lock the roller holder assy in position.
Fig. 6.2-5
Replacing the Cartridge 5
[6] Close the top cover.
Fig. 6.2-6
Replacing the Cartridge 6
[7] Turn on the power switch and press the Feed key to feed out some sheet and remove the slackness in the sheet. Hold down the Feed key until the edge of the sheet reaches the eject gate. [8] Press the Cut key to cut off the end of the sheet fed out to remove the slackness.