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KENWOOD DP4090
Service Manual


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

Description of KENWOOD DP4090 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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Table of Contents
    • CONTENTS/ACCESSORIES/CAUTION
    • EXTERNAL VIEW
    • DISASSEMBLY FOR REPAIR
    • ADJUSTMENT
    • PC BOARD
    • SCHEMATIC DIAGRAM
    • EXPLODED VIEW
    • PARTS LIST
    • SPECIFICATIONS
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Text excerpt from page 8 (click to view)
DP-4090/5090/D-S300
DIRCUIT DESCRIPTION
Pin No. 64, 65 66 67 68 69 70 71 72 73 74 75 76 77, 78 79 80 Name NC GFS NC VDD X2 X1 IC XT2 FOK AVDD AVREF0 50 / 40 A / D0 ,A/D1 PEAK RMUTE I/O O I O – – I – – I – I I I I O Description No used Frame signal input from CXD2507AQ No used Power supply (+5V) system clock input system clock input GND No used F.OK signal input Vdd Vdd Model discrimination A/D key input A/D peak search input Analog mute control Active

5V : D-S300 / 2. 5V : DP-5090 / 0V : DP-4090

2. Test mode
2-1 Setting the test mode
÷ The microprocessor built in the unit can be put to TEST MODE by just pressing the UP key when set to power on.

2-2 Key vs Function in test mode
keys UP ¢ (Keep to press up key and AC ON) Display TEST Description Tray opens automatically. (1) Focus servo – – – – ON (2) Tracking servo – – OFF (3) Feed servo – – – – OFF (1) Focus servo – – – – ON (2) Tracking servo – – – ON (3) Feed servo – – – – – ON î FL all light up î dot demonstration mode ì ììì normal test mode indication íìììì FEED OUT FEED IN TEST 00 8 BIT SYNC 16 BIT SYNC Move the pick - up to the direction of the outer circumference. Move the pick - up to the direction of the inner circumference. Disc will be stopped. 8 bit sync and 16 bit sync will be displayed by changing the SL16/XS8 switch on the rear panel. Change the output level cyclically. ì Max î -10dB î Min ììììììíììììì ‰ 01 Cancellation of the test mode and 01 play. Remarks Setting the test mode

8 30 – – : – – PLAY/PAUSE 6 ‰ 05 00 : 00

TE-balance adjustment Focus gain / Tracking gain and FE- balance adjustment

UP ¢ * FF 1 * FB ¡ * STOP 7 *

* PEAK SEARCH DOWN 4

* DP 4090/DP-5090 only The following keys are not operate in the test mode. • TEXT DISPLAY KEY (DP-4090/DP-5090) • REPEAT / RANDOM KEY (D-S300)

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