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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!
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Manual was just as described!!! I odered it and in less than a day was able to download it and the text was clear and pages were all complete just as the original manual was. Purcashed this for a friend and they were more than happy. Perfect all around!
1-10. Switch Settings on Boards and LEDs Description (CPU-251/229 Boards)
1. CPU-251 board
CN5 (G3) : Backup battery connector
ON
D6 (G2) : S-BUS Rx lamp This lamp lights for about 0.3 seconds when the data for a local station is received from the S-bus data link via a REMOTE1 connector. D7 (G2) : S-BUS Tx lamp This lamp lights for about 0.3 seconds when data is output to the S-bus line by a REMOTE1 connector. The lamp continuously lights when this unit is set to the primary station. When this unit is set to the secondary station, the lamp lights only during internal operation. D8 (G2) : 422 Tx lamp This lamp lights for about 0.3 seconds when data is output from the REMOTE2 connector to the RS-422 line. D9 (G2) : 422 Rx lamp This lamp lights for about 0.3 seconds when a command is received from the RS-422 line via a REMOTE2 connector. D10 (G2) : Not used. D11 (G2) : ACT lamp This lamp lights when the bus can communicate with the outside. The lamp of the board in operation lights when the CPU-251 board for backup is mounted. D12 (G2) : PRI lamp This lamp lights when the CPU-251 board is set to the primary station. D13 (G2) : RUN lamp This lamp lights when the CPU is running normally. D31 (A8) : This lamp lights when a REF signal is input. D32 (A8) : This lamp lights when a REF signal is synchronized.
Factory-shipped setting
CN6 (J8) : This connector is used for adjustment in the factory. CN7 (J8) : This connector is used for adjustment in the factory. CN8 (F7) : REMOTE2 TERMINATOR switch This is the terminator switch of a 9-pin REMOTE2 connector. Usually, set this switch to ON during use. Set it to OFF only during special use (e.g., bridge connection).
OFF
ON
Factory-shipped setting
CN9 (F7) : REMOTE2 TERMINATOR switch This is the terminator switch of a 9-pin REMOTE2 connector. Usually, set this switch to ON during use. Set it to OFF only during special use (e.g., bridge connection).
OFF
ON
Factory-shipped setting
CN12 (C9) : This connector is used for adjustment in the factory
HDS-V3232 MM
1-23 (E)
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