The ervice manual for my 1982 Kenwood KR-1000 receiver is great! Full detail on all circuits with part number detail. I will definately be ordering more manuals for my other vintage equipment! Order was fulfilled quickly! Very efficient ordering process! Thnaks for your help! Great site!
Everything in the manual was excellent except for a couple of pictures of specific areas in the unit that were a little dark. Owners Manuals re-sent the pdf file & the problem was corrected. Excellent product! George
Text excerpt from page 134 (click to view)
Trouble (5) Black and blurred vertical stripes or band
Action to be taken At the scanner Check the following components: - CIS unit At the printer side Clean the paper path which may be contaminated with toner. Slide the wire cleaner to clean the corona wire inside the drum unit. Make sure that the wire cleaner is returned to its home position. Replace the toner cartridge. Replace the drum unit. Replace the heat-fixing unit.
(6) Black vertical streaks on gray background
At the printer side Clean the laser beam window (glass) on the laser unit. Replace the laser unit.
(7) Black and blurred horizontal stripes
At the printer side Slide the wire cleaner to clean the corona wire inside the drum unit. If they appear at 94-mm or 17-mm intervals, replace the drum unit. If they appear at 54-mm intervals, replace the heat-fixing unit. Replace the high-voltage power supply PCB.
(8) Horizontal lines
At the printer side Check the connection between the right end of the paper feed roller and the grounding wire. (Contact in the illustration given on page 6-28.)
