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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!
IC DESCRIPTION
IC, ML63512A-A07 Pin No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ~ 26 27 28 29 30 ~ 31 32 33 34 35 36 37 38 39 40 41 42 43
Pin Name
DSL CTRL SLAVE S-CLK DSL EFFECT SLAVE S-DATA AU F/R CTRL MUTE MOTOR HI-SP MOTOR HI-SP MOTOR DRCT MOTOR CTRL MOTOR BRAKE DIS-CHARGE VOLTAGE DET 1 VOLTAGE DET 2 K-MAIN K-REMOTE NC P-CTRL LED CTRL MOTOR CTRL VDD I VSS VDD VDDH CB1 ~ 2 VDDL XT0 XT1 TST1B ~ 2B VSS OSC 0 OSC 1 RESET BEEP CASS SW P-DET MS DET TIMING SW REMOTE SEL NC DOLBY CTRL
I/O
O I O O O O O O O O O O I I I I � O O O � � � � � � I O I � � � I O I I I I I � O
Description
DSL switch control output terminal. (Not used) Serial clock input terminal for remote controller. (Connected to GND) DSL switch control output terminal. (Not used) Serial data output terminal for remote controller. (Not used) Playback signal FWD/REV switching output terminal. Mute signal output terminal. Motor HI-SP turn over output terminal. Mecha deck motor high speed control output terminal. Mecha deck rotating direction control output terminal. Mecha deck motor control output terminal. Mecha deck brake control output terminal. Dummy load control output terminal when checking battery level. Voltage detection input terminal 1. Voltage detection input terminal 2. Main unit key input terminal. (Using level detector) Remote controller key input terminal. (Using level detector) Not connected. Auto stop LED control output. Battery level indication LED control output. Motor control turn over output terminal. External equipment interface power supply terminal. Negative ( � ) side power supply terminal. Positive ( + ) side power supply terminal. Boost power supply terminal for back up. Capacitor connection terminal for boost power supply. Positive ( + ) side power supply terminal for internal logic. Connect 32.768 kHz crystal oscillator. Test terminal. (Connected to VDD) Negative ( � ) side power supply terminal. Clock oscillator terminal for high frequency side. (Not used) RESET input terminal. Beep sound output terminal. Cassette tape existance detect switch input terminal. Auto stop signal detection input terminal. Music sensor detection input terminal. Mecha deck timing switch detection input terminal. Remote controller specification switching input terminal. (Not used) Not connected. Dolby control output terminal. (Not used)
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