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This is a high quality manual with clear schematic and components layout diagrams ; with service procedure included.
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.
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.
I was at first dubious about payiong for downloaded manuals but having done so, I was extremely impressed with quality of the two manual I ordered, well worth the small price I paid.
I would highly recommend these to my friends.
reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
Notes on Check 1. Perform the traverse check in the CD test mode. 2. 3. After check, be sure to exit the test mode. Perform check in the order given. Use the disc (YEDS-18, Parts No. 3-702-101-01) only when so indicated.
E-F Balance Check Adjustment Location : MAIN board (See page 23) This check is to be done when the optical pick-up block is replaced. Check Procedure: 1. Connect the oscilloscope to test point TP (VC) and TP (TE) on MAIN board. 2. Put the set into test mode. 3. Optical pick-up setting to the center by + or = button pushing. 4. Insert disk (YEDS-18) and press ^ button. 5. Check that the oscilloscope traverse waveform is symmetrical, as shown in the figure below. 6. Release test mode after adjustment is completed.
Before Check Put the set into test mode and perform the following checks. Repair if there are any problems. â¢ Sled Motor Check Press + , = keys and confirm that the Optical pick-up moves smoothly from the innermost to outermost circumference and back smoothly and with no catching or abnormal noises. (Cancellation of BTL mute) + : Optical pick-up moves to the outer circumference. = : Optical pick-up moves to the inner circumference. â¢ 1. 2. Focus Search Check Press the CD ^ key. (Focus search operation is performed continuously.) Look at the Optical pick-up objective lens and confirm that it moves up and down smoothly, with no catching or abnormal noises. Press p button. Confirm that focus search operation stops. If it does not, press p button again longer.
A 0V B A=B C = 500mV Â± 100mV C
VOLT/DIV : 0.1V TIME/DIV : 1ms
How to Enter the Set into Test Mode 1. Turn the AC CORD IN (Adaptor). (LCD 501 indicator blinks the test mode pattern.) 2. Short-circuit between the lands as shown on the control (1) board. How to Exit the Test Mode Turn the POWER OFF.
[CONTROL (1) BOARD]
Osilloscope (DC range) TP(TE) TP(VC)
Jumper wire Test portion Short : Test mode Open : Normal mode
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Complete owner's manual in digital format. The manual will be available for download as PDF file aft…