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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!
5-2. PRINT IS TOO DARK OR TOO LIGHT
START
Is voltage (approx. 5.7 V) at pin 4 of IC6 on MA-91 board output when "CONTRAST"is set as center value?
NO
IC203 and IC201 or peripheral circuit of Q16 on MA-91 board are defective.
YES
Is voltage (approx. 1.4 V) at pin 6 of IC6 on MA-91 board output when "BRIGHT" is set as center value?
NO
Peripheral circuits IC203 and IC201 or Q15 and Q17 on MA-91 board are defective.
YES
Is voltage (approx. 1.5 to 2.5 V) available atpin 78 of IC505 on MA-91 board when head is at the normal temperature? YES
NO
Peripheral circuit IC404 and pins 15 and 16 of CN202 line on MA-91 board, or the thermistor in the head are defective.
Are the required voltages available at each terminal, 3 V at 19 pin of IC6 and IC7 on MA-91 board, and 1 V at 23 pin of the IC's? YES
NO
Peripheral circuit Q21 on MA-91 board is defective.
Is density of stair step printed in test mode properly?
NO
The head voltage or connecetor CN202 line on MA-91 board is defective.
YES
The data buses of IC7 and IC8, data buses of IC602 and IC603, or peripheral circuit IC2 on MA-91 board are defective.
5-2
UP-980(UC) UP-980CE(CE)
 $4.99 UP-980 SONY
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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