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KENWOOD KDCX679
Service Manual


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

Description of KENWOOD KDCX679 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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Text excerpt from page 4 (click to view)
KDC-X679
COMPONENTS DESCRIPTION
Ref. No. Q10,11 Q12 Q13,15,16 Q17,18 Q19~21 Application / Function SERVO+B AVR (Panel Mecha) SW for IC7 FL&ILL AVR AUDIO 10.5V AVR Pre-Amp -9V AVR to OP Amp for Pre-out. Q22 and 24 works as a differential amplifier, Q23 works as a driver and +9.4V is supplied Q22~24 Q25,26 Q27,30 Q28,29 Q31 Q32 Q33,34 Q35 Q36 Q37,38 Q39 Q40 Q41,42 Pre-Amp +9V AVR to OP Amp for Pre-out. P-ANT SW P-CON SW P-CON Protection Ex Amp Control Buffer Small lamp det SW SERGE Det. BU det ACC det Pre-out mute driver Sub-out mute driver AC-out mute driver AM+B SW When Q32’base goes Hi, Q32 is turned on. When Q33’base goes Hi, IC4 is changed into a standby state. When Q35’base gose Hi, Q27 is turned on. When Q36’base gose Hi, Q29 is turned on. When a base gose Lo, mute driver is turned on. When a base gose Lo, mute driver is turned on. When a base gose Lo, mute driver is turned on. When Q42’base gose Hi, AM+B is out. DSI lights when the base is “L”. Q44 DSI Driver DSI turns off when the base is “H”. DSI turns on and off when panel is taken off. Q45,46 Q47~52 Q56,57 Q58,59 Q60 Panel 5V SW Pre-out mute SW AC-out mute SW Sub-out mute SW Level meter mute SW When Q46’base gose Hi, PANEL 5V is out. When a base gose Hi, Pre-out is muted. When a base gose Hi, AC-out is muted. When a base gose Hi, Sub-out is muted. When a base gose Hi, Level meter is muted. When Q23’base goes Hi, P-ANT SW outputs 14V. When Q30’base goes Hi, AVR outputs 14V. Protect Q27 by turning on when P-CON output is grounded. Operation / Condition / Compatibility When Q10’base goes Hi, S+B AVR outputs 8.5V. When Q12’base gose Lo, IC7 is turned on. When Q13’2pin goes Hi, ILL AVR outputs 10.5V. When Q16’base goes Hi, AVR outputs 10.5V. Q19 and 21 works as a differential amplifier, Q20 works as a driver and -9.1V is supplied

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KDCX679 KENWOOD
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Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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