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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.
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When I purchased this manual I had my doubts regarding the quality as the price was so reasonable as compared to other outlets.
The manual itself is of high standard the print is very clear as are the diagrams. Obviously with the diagrams one has to zoom in otherwise it is to small to be able to read.
Overall I am very pleased with the company who delivered as they said and with the manual they supplied.
I occasionally require a manual and now having registered with this company I shall order from them in the future.
Troubleshooting
4-6-5-1 Signs and Measures at Poor toner cartridge
Fault Light image and partially blank image (The life is ended.) Signs � The printed image is light or unclean and untidy. � Some part of the image is not printed. � Periodically a noise as "tick tick" occurs. Cause & Check 1. If the image is light or unclean and untidy printed image - Shake the developer and then recheck. (1)NG: Check the weight of the developer (2)OK: Lack of toner, so the life is nearly closed. 2. Some part of image is not printed - Shake the developer and then recheck. (1)NG: Check the weight of the developer and clean the LSU window with a cotton swab, then recheck. (2)OK: Lack of toner, so the life is nearly closed. 3. Periodically a noise as "tick tick" occurs - Measure the cycle and the weight of the developer. Solution 1. All of 1, 2, 3 aboveIf it become better by shaking, replace with a new developer after 50-100 sheets in the closing state of the life span.
Digital Printer Digital Printer Digital Printer Digital Printer Digital Printer
2. In case of 2If it becomes better after cleaning the LSU window, then the developer is normal. (Because of foreign substance on the LSU window, the image has not been printed partly.)
3. In case of 3If the cycle of noise is about 2 seconds, the toner inside the developer has been nearly exhausted.( Purchase and replace with a new developer after using about 200 sheets at the point of occurrence)
4. White vertical stripes on the whole screen or partly : Check the weight of the developer.
4. In case of 3This is a phenomenon caused by lack of toner, so replace with a new developer.
Toner Contamination
� Toner is fallen on the papers periodically. � Contaminated with toner on prints partly or over the whole surface.
1. Toner is fallen on the paper periodically. (1)Check the cycle of the falling of the toner. (2)Check the appearance of both ends of the developer OPC drum. 2.The center of the printed matter is contaminated with toner. (1)Check whether foreign substances or toner are stuck to the terminal (contact point) of the developer. (2)Check whether the state of the terminal assembly is normal.
1. If both ends of the OPC drum are contaminated with toner: Check the life of the developer.
2. Check whether it could be recycled.
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Samsung Electronics
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