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There are currently no product reviews.
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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.
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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.
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reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
FLOW CHART NO.17 The key operation is not functioning. Are the contact point and the installation state of the key switches normal? Yes Is the control voltage normally inputted into Pin(1, 2) of IC009? Yes Replace IC009 or DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY. No Re-install some key switches correctly or replace some key switches. Check the key switches and their periphery, and service it if defective.
Terminal voltage of IC009-1,2 3.300 2.479 2.464 1.746 1.730 1.115 1.100 0.484 0.469 0.161 0.146 (V) KEY-1 IC009-1 ----REC STOP PLAY ----KEY-2 IC009-2 ----DVD HDD CH UP CH DOWN
No
OPEN POWER /CLOSE
FLOW CHART NO.18 No operation is possible from the remote control unit. (Operation is possible from the unit.) Is 5V voltage supplied to the Pin(3) terminal of the RS1501 (remote control receiver)? Yes Is the "L" pulse sent out from Pin(1) terminal of the RS1501 (remote control receiver) when the remote control unit is activated? Yes Is the "L" pulse signal supplied to the Pin(27) of IC009? Yes Replace IC009 or DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY. No Check AL+5V (1) line and service it if defective.
No
Replace the RS1501 (remote control receiver). Or replace remote control unit.
No
Check the line between the RS1501 (remote control receiver) and the Pin(27) of IC009, and service it if defective.
FLOW CHART NO.19 The disc tray cannot be opened and closed. (It can be done using the remote control unit.) Is the normal control voltage inputted to Pin(2) of IC009? Refer to "FLOW CHART NO.17" <The key operation is not functioning.> Yes Replace IC009 or DVD MECHANISM & DVD/HDD MAIN BOARD ASSEMBLY. No Replace the "OPEN/CLOSE" button (SW1643).
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E2J70TR
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