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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.
KDC-205/CR, 226 KDC-2026, 3026/R
COMPONENTS DESCRIPTION
� SWITCH UNIT (X16-2460-21/2470-xx)
Ref No. IC1 IC2 Q1 Q2 Q3 Application/Functions LCD driver Sensor Key scan detect LED SW LED SW Operation/Condition/Compatibility LCD derive & Key input interface Remote control sensor key scan start at base gose �L�. When Q2 base gose �H� LED is light on RED Color When Q2 base gose �H� LED is light on GREEN Color
� CD PLAYER UNIT (X32-5490-00)
Ref No. IC1 IC2 IC3 IC4 Q2 Q3 Q4 Application/Functions Mechanism control SW3.3V AVR CD DSP & servo IC BTL driver SW APC SW Operation/Condition/Compatibility When BU5V & MSTOP (12pin) goes �H� (IC1 is active) When CNTL (1pin) goes �H� (SW3.3V AVR : ON) CD RF amp, Servo, DSP & DAC Focus, tracking coil, Sled & Spindle motor driver IC SW5V SW transistor Auto Power Control EQ SW transistor
� ELECTRIC UNIT (X34-3100-21/3110-xx)
Ref No. IC1 IC4 IC6 IC7 IC8 IC10 IC11 IC12 Q10 Q20 Q40 Q50 Q51 Q53 Q55 Q70 Q101 Q102 Q201 Q223,224 Q251 Q252 Q253 Q501 Q502 Q503 Application/Functions System control IC Audio power IC RDS decoder Power supply IC Muting logic IC E-VOL & tuner IC Reset IC E2PROM BU detector ACC detector Muting driver foe Q223, 224 SW5V SW Control SW for SERVO +B SERVO +B AVR Serge detector DSI illumination SW Panel 5V SW Noise buffer Preout muting SW SW Smeter RC & MPTHTC SW Smeter RC & MPTHTC SW AM RF amplifier FM RF amplifier MPX buffer Operation/Condition/Compatibility System control microprocessor Audio power amplifier RDS decoder IC Multi AVR IC (for 5V, 8V, P-CON & P-ANT) Control for MUTE, P-ANT & RESET muting E-VOL. FM/AM tuner & stereo decoder When BU5V line voltage is less than 3.5V, this IC output line is �L� Memorized tuner adjustment data (save & load) When the base goes �H� during BU applied (ON) When the base goes �H� during ACC applied (ON) When the base goes �L� (Muting : ON) When the base goes �L� (SW5V : ON) Control SW for IC7 When the base goes �H� (Servo +B : ON) Servo AVR (7.4V) When the base goes �H� (Serge detection) When the base goes �L� (DSI illumination : ON) When the base goes �L� (Panel 5V : ON) Tuner audio noise buffer amplifier When the base goes �H� (Preout muting : ON) When the base goes �L� (IC4 : ON) RC & TC is �LONG� when the base is �H� (base is �L� is AF search) When collector is �H�, emitter is �H� When the base goes �H� (RF circuit gain is up) When the base goes �H� (RF circuit gain is up) MPX input buffer with RDS
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