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Service Manual

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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of KENWOOD KDCX879 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Very helpful and complete manual. Maybe only one negative is schematics have sometimes unreadable name of the parts. But it's not a big problem.

Text excerpt from page 5 (click to view)
Ref No. IC5 IC6 IC7 IC8 IC9 IC10 IC11~13 IC14 IC15,16 IC18 IC19 IC20 Q1,2 Q3,601 Q4,5 Q6~8 Q9,602 Q11~14 Q15,16 Q17~19 Application / Functions System IC Audio control IC Power supply IC Reset IC Muting logic IC Buffer IC OP AMP RDS decoder Motor driver P-CON IC Power supply IC Analog SW BU 5V AVR SW5V AVR SW14V AVR Audio 8V AVR Servo +B AVR Illumination & DC/DC +B AVR Audio 10.5V AVR Pre Amp & -9V AVR OP AMP for Pre-out Q20,22 work as differential amplifier, Q21 wark as driver and +9.4V is supplied to Q20~22 Q23,24 Q25 Q26 Q27 Q29 Q30,31 Q201 Q202 Q203~208 Q210 Q303,304 Q305 Q501 Q502,503 Q603 Pre Amp & +9V AVR OP AMP for Pre-out P-ANT SW Buffer Small lamp det. SW BU detector ACC detector Muting driver Buffer E-VOL muting SW Pre-out muting SW AGC AM +B SW Buffer E2P 5V SW Panel 5V SW SW When Q23 base level goes H, P-ANT SW output is +14V EX amp control buffer When Q26 base level goes H, Q26 turned ON When Q27 base level goes H, Q27 turned ON When Q29 base level goes H, Q29 turned ON When base level goes L, muting driver is turned ON Noise detect buffer amp When Q202 base level goes H, muting SW is turned ON When base level goes H, Pre-output is muted For AGC for spectrum analyzer When Q303 base level goes H, AM +B is out to tuner unit Composite signal buffer for RDS When Q501 base level goes L, E2P 5V is out for E2PROM When Q503 base level goes H, Panel 5V is out When Q603 base level goes H, Q603 is turned ON For System Eâs control For WOW/FOCUS control -9V AVR (For 4.5V Pre-out) When BU5V line voltage is less than 3.5V, this IC output line is âLâ Control for MUTE, P-ANT & RESET muting For spectrum analyzer For 4.5V Pre-out Decode for RDS signal Control for Panel mechanism motor Power control IC Switching regulator IC for CD4.7V Control for WOW/FOCUS IC (IC4) While BU is applied when BU5V regulator output is +5V When Q601base level goes H, SW5V regulator output is +5V When Q5 base level goes H, SW14V regulator output is +14V When Q6 base level goes H, A8V regulator output is +8.3V When Q602 base level goes H, S+B regulator output is +7.5V When Q11 base level goes H, AVR output is +9.2V When Q16 base level goes H, AVR output is +10.5V Q18,19 work as differential amplifier, Q17 wark as driver and -9.1V is supplied to Operation / Condition / Compatibility


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Owner's Manual

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