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This is the original manufacturers service manual, with detailed info on the circit boards, explosion drawings of all parts in assembly order, and tuning instructions. The only thing missing is the information on the dimensions of the various drive belts. mail me if you need them. gcrossman_at_aol.com
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Ordered service manuel for a hard to find plasma tv - your company made it easy to find and purchase - I will use you again
Thanks for your help
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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.
IC DESCRIPTION -1/1 (µPD178006AGC-555-3B9, µPD178018AGC) -2/2
Pin No. 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Pin Name SUB M CONT 2 MODE PL REEL STAND-BY F/R HEAD MS IN LED MI-1 MI-2 MI-3 MO-1 MO-2 MO-3 MO-4 BS CONT NR CONT MTL CONT BEEP RMT IN E-VOL CE E-VOL DO E-VOL CLO DSSA RDS DI DFP IN FLAP IN RDS CLI EJECT IN ACC IN RE1 IN RE2 IN PACK IN REG CPU GND X-OUT X-IN REG OSC VDD RESET O O O O I O O O O I I I I I I I I I � � � I � � I MS/BL switching output. Open when not used Dolby B NR on/off output. Open when not used Metal tape on/off output. Open when not used Beep output (3 kHz, 50 ms) Remote control input. Pulled up when not used CE output to electronic VR (LC75374E) Data output to electronic VR (LC75374E) Clock output to electronic VR (LC75374E) Outputs "H" only when DSSA L/R are operating. RDS data inputPulled down when not used. Detects whether DFP (front panel) is provided or not. Detects whether flap DFP is open or closed. RDS clock inputPulled down when not used NC (pulled down) ACC (accessory power supply) on/off input Rotary encoder input 1. Rotary encoder input 2. Tape insertion status detection input CPU power regulator Ground System clock oscillator System clock oscillator Regulator for oscillator circuit Power supply System reset input O Diode matrix output for initial setting I Diode matrix input for initial setting I/O O I I I O I O Sub motor control output-2. Mode pulse input for tape mechanism. Reel pulse input for tape mechanism. Mechanism Stand-by input Head FWD/REV select output. MS signal input (no music: "H", with music: "L"). Pulled when not used Security LED flashing output ("H": 120-130 ns, 1 cycle: 3 s) Description
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