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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.
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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!
1-3. Connection Input/Output Signals
Note 1 : Specifications of BATT IND Signal VTR has a battery voltage detection and waring signal generation circuits and it sends the signal shown below to the camera.
Battery Terminal Voltage (VTR internal battery) 12.0�11.1 Vdc 11.1�10.8 Vdc 1.0 ± 0.2 Hz duty 50 ± 10 % Input Signal at Pin 25 0V LED on Viewfinder Stays out Blinks at 1 Hz Lights up 10.8 Vdc or less
2�3 Vdc across 300 �
Note 2 : Specifications of REC ALARM Signal
+1 5.0 -0.5 Vdc Input Signal at Pin 24 2.5 ± 0.5 Vdc REC TALLY signal 1.0 ± 0.2 Hz duty 50 ± 10 % Power ON When VTR changes from POWER SAVE to REC START mode, or when the servo is lost
0 ± 0.3 Vdc Power OFF VTR Action
REC RESET signal 10�100 msec When VTR changes from STANDBY to REC START mode, or in REC mode At the end of STOP tape or When mode VTR is put into STOP mode by itself (REC RESET signal does not appear when VTR is put into STOP mode by operating the camera)
Note 3 : Specifications of TAPE REM Signal
Tape Remaining (VTR) TAPE1 +5 V +5 V 0V 0V TAPE2 +5 V 0V +5 V 0V +3.4 V +3.1 V +2.2 V 0V G TALLY lamp lights at +3.1 V (in connection with CCU) Input Signal at Pin 25 Remark
1-4 (E)
CA-553
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