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!
Text excerpt from page 8 (click to view)
1.3 The DVD drive does not work. When the DVD drive does not work after the power is turned on, check the following items and repair or replace the defective parts. (1) Press the DISC cover switch at the center of the DVD player and turn on the power. Then check whether or not the optical pick-up lens of the DVD drive lights.
DISC cover switch
CAUTION: Visible laser radiation may be present when the encloser is opened. Don't stare it. The optical pick-up lens lights dim: It is caused by deterioration of the optical pick-up lens. Replace the DVD drive. The optical pick-up lens does not light: Check the connectors of the DVD-FFC. Also check the connection to the main board and to the DVD drive. Loose connection is found. Repair the connection, and then check the operation of the DVD drive again. The DVD-FFC is broken. Replace the DVD drive. Other than the above. Replace the DVD drive or the main board. (2) Insert a DVD disk and turn on the power The DVD drive does not work: The motor of the DVD drive or the main board is defective. Replace the DVD drive or the main board. The DVD drive works but the initializing operation of the optical pick-up lens does not start (the optical pick-up lens operates twice), or abnormal noise sound: The DVD drive is defective. Replace the DVD drive.