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Thanks for offering this item at such a good price. Proved handy in identifying the part I was looking for my set.
Thanks again.
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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
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Ordered service manuel for a hard to find plasma tv - your company made it easy to find and purchase - I will use you again
Thanks for your help
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This is a high quality manual with clear schematic and components layout diagrams ; with service procedure included.
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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.
- Head azimuth adjustment (8 kHz, -20 dB); QZZCFM - Tape speed gain adjustment (3 kHz, -10 dB); QZZCWAT - Playback gain adjustment (315 Hz, 0 dB); QZZCFM - CrO2 tape, QZZCRX
12.1.1. Head Azimuth Adjustment
Note : If you wish to readjust the head azimuth, be sure to adjust with adhering the casette tape closely to the mechanism by pushing the cebter of cassette tape with your finger. (Shown in Fig. 1)
1. Connect the measuring instrument as shown in Fig. 2. 2. Replace azimuth screws for both forward and reverse direction after removing the screw-locking bond left on the head base. 3. Playback the azimuth adjustment portion(8kHz, -20dB) of test tape(QZZCFM). Adjust the azimuth adjusting screw until the outputs of the L/Rch are maximized. (Refer to Fig. 3) Make sure that the difference in the peak level between the left and right channels does not exceed 5dB. 4. Perform the same adjustment in reverse playback mode. Check of the level difference forward and reverse directions 5. Playback the playback gain adjustment portion(315Hz, 0dB) of test tape(QZZCFM). Check if level difference between forward and reverse direction is within 1.5dB. 6. After the adjustment, apply screwlock to the azimuth adjusting screw.
Fig. 1
Fig. 2
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