Kenwood-DV4050B-cd-sm 维修电路原理图.pdf
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1、70%In compliance with Federal Regulations, following are repro-duction of labels on, or inside the porduct relating to laserproduct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No.21 CFR 1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlockde
2、feated. AVOID DIRECT EXPOSURE TO BEAM.Caution : No connection of ground line if disassemble the unit. Please connect the ground line onrear panel, PCBs, Chassis and some others.DVD VCD CD PLAYERDV-4050-BDVF-R6030-BSERVICE MANUAL 2000-9/B51-5661-00 (K/K) 1399STANDBYON/STANDBYSTANDBYON/STANDBYPOWERDIS
3、C5changerDISC SKIPDISC 1DISC 2DISC 3DISC 4DISC 5OPEN/CLOSE0387VIRTUALSURROUND4COAXIAL OPTICALDIGITAL OUTPUT(PCM/BIT STREAM)OUTPUTCOMPONENT VIDEO OUTPUTSUB WOOFERYCbCrS VIDEOL12R2OUTPUTLINE OUTPUTVIDEO1Knob(K29-7823-13)Knob(K29-7804-13)Knob(K29-7801-13)Metallic cabinet(A01-3776-01)Pin jack(E63-1159-0
4、5)Pin jack(E63-1127-05)Oscillating module(W02-2732-05)Front glass(B10-3610-02)Panel *(A60-)Pin jack(E63-1162-05)AC power cord bushing(J42-0083-05)AC power cord *(E30-)Pin jack(E63-1161-05)Cylindrical receptacle(E56-0032-05)Knob(K29-7822-13)* Refer to parts list on page17. Pin jack(E63-1157-05)RadioF
5、ans.CN 收音机爱 好者资料库DV-4050-B/DVF-R6030-B2CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES . 2DISASSEMBLY FOR REPAIR.3ADJUSTMENT.5PC BOARD.7.SCHEMATIC DIAGRAM . 9EXPLODED VIEW .15PARTS LIST.17SPECIFICATIONS .20ContentsAccessoriesRemote control (1)(A70-1420-05)Battery cover(A09-1213-08)Batteries (2)for remo
6、te controlAudio cable (1)(E30-0505-05)Video cable (1)(E30-1427-05)Optical digital audio cable (1)(B19-1529-05)Note: Please contact our KENWOOD Service Department in your side if you want the information;Microprocessor(MN101C35D) ports explanation and full (previous) format parts list on thismodel. Y
7、ou can be available them by internet from us.Note: Test Mode in detail is written inDV-4900/DV-4700/DVF-R6030/DVF-R9030 Service Manual(B51-5665-00).RadioFans.CN 收音机爱 好者资料库DV-4050-B/DVF-R6030-B3DISASSEMBLY FOR REPAIR1523645HOOK ( x2)HOOKx2Guide634HOOKGUIDEARMDRIVEGEARHOOKLOADINGGEAR (A)(Free)PROTRUSI
8、ON OF TRAY215REAR1. How to Remove Tray1. Remove the front panel and flexible cable.Disassemble the X25 and power supply pcb with subchassis if it is a difficult.2. Push and hold the lever()to clockwise and pull barelyout the tray to frontwards() where the hook of tray()meets with guide().3. Push hoo
9、ks(), both sides, inwards and release themfrom guides().4. Pull hooks of tray() outwards and remove the trayupwards().2. How to Assemble Tray1. Adjust the position of drive gear as figure().Check traverse unit is at the lowest position.2. Load the tray on the loading mechanism.Check the position whe
10、re the loading gear(A) is free()3. Meet the hooks with guides and push hooks to load thetray().4. Set the right side hook to loading mechanism().5. Set the left side hook to loading mechanism with pulling itoutwards().6. Push the tray backwards().DV-4050-B/DVF-R6030-B4DISASSEMBLY FOR REPAIR5. How to
11、 Disassemble Traverse Unit1. Move the traverse to upward by turning motor pulley().2. Make the gap between the tray guide and guider(L) withdriver()3. Remove the screws(, ).6. Tangential and Tilt Adjustment1. Turn the power on with pressing the DISC 1 key.(Display shows INSPECTION; test mode.)2. Pre
12、ss the DISC1 key in playback mode again.Display shows Jitter * %3. Turn off if cancel test mode.24213TrayguideGuider(L)Protrudingpart555666X13-7770-10CN1CN2Clamper weightSpacerMagnetClamper3. How to Remove Clamper Assy1. Remove screws.4. How to Disassemble Clamper AssyREARTilt adjustment screw 2Tilt
13、 adjustment screw 1Tangential adjustment screwDV-4050-B/DVF-R6030-B5CIRCUIT DESCRIPTIONPin No.Pin NameI/ODescription1CMDOSerial output for system communication.2STATUSISerial input for system communication.3DSPCLKISerial clock for system communication.4DATAOData signal output to buffer.5STBOStrobe s
14、ignal output to buffer.6CLKOClock signal output to buffer.7CLROClear signal output to buffer.8VDD-+5.0V power supply.9OSC2OMain clock (8MHz) output.10OSC1IMain clock (8MHz) input.11VSS-Connected to ground.12XI-Connected to ground.13XO-Unused.14MMOD-Connected to ground.15VREF-Connected to ground.1618
15、KEYIN02IKey signal input.19,20PA3,PA4-Unused.21CLOSE SWIDisc clamp control.22OPEN SWIControl port of tray open/close for changer mechanism.23PA7-Unused.24VREF+-A/D reference voltage.25TM+OControl port of tray motor.26RESETIReset signal input.27RM+OControl port of tray motor.28TRM-OControl port of tr
16、ay motor.29MECHA VROControl port of tray motor.30POWEROControl port of power supply.31POWER MUTEOPower on/off control.32P15-Unused.33REMOCONIInput port of remote control signal.34,35P21,P22-Unused.36POSITIONIDetection port of tray position.37SPEEDIDetection port of rotation speed for tray.38P25,P30P
17、32-Unused.42STBY-LEDOControl port of standby LED.43P51-Unused.44VSS-LEDOControl port of VSS LED.45,46DESTINATION INIUnused.4749DESTINATION OUTOUnused.50DIGI 4-Unused.51631G13GOFL grid output.6480P17P1OFL segment output.8198SEG24SEG41-Unused.99SW MUTEOControl port of sub woofer.100VFL-FL power supply
18、.Microprocessor pin description : MN101C35D(X14,IC1)DV-4050-B/DVF-R6030-B6ADJUSTMENTNo. ITEM INPUTSETTINGOUTPUT SETTINGALIGNMENTPOINTALIGNMENTFORFIG.1BRIGHTNESS100% COLOR BAR DISCConnect the oscilloscope toY output with 75-ohmsresistorVR1Y-signal =1000mV30mVFIG.1.2CHROM LEVEL100% COLOR BAR DISCConne
19、ct the oscilloscope toCOMPOSIT output with 75-ohms resistorVR2Chrom-signal =285mV14mVFIG.2.3Cb LEVEL100% COLOR BAR DISCConnect the oscilloscope toCb output with 75-ohmsresistorVR3Cb-signal =648mV14mVFIG.3.4Cr LEVEL100% COLOR BAR DISCConnect the oscilloscope toCr output with 75-ohmsresistorVR4Cr-sign
20、al =648mV14mVFIG.4.1000mV30mVY4.7s-2.860714(100IRE)mVwhiteyellowcyangreenmagentaredblueblack71464151644332425212754285mV14mV120IREPeak whiteBlank1000-40324-3240mV01092153240-109-215-324Cb648mV14mV324-3240mVCr648mV14mV053271324-530-271-324FIG. 1FIG. 2FIG. 3FIG. 4ACEGIBDFHJ2135746D13D14D12D7D6D8D10D9I
21、C2IC1R96W77W78W79R89R47R48W65R49R51R40R41R39R44R42R43R52C2C3C1R541007626501181019257551R53R56C4C5C7C22C21 C23R4R5C17C16 C18C20C19R3C31C32C30C27C29R1R2C24 C26C25C15R30R31R29R27R28R32R36R37R35R33R34C9C11C14C13C8R26R25R23R24R73C38W62W60W61C39W55C40R74C41W54W66W56W53R86W58W52W67W69C10W68W63W70W70W64R69R
22、61R60R59R58R70W76W75W74W71W82W73W72R50W50W51W49W48R79R95R93R91R87W57W59R11R88R90R92R94R80R78R77R75R76W100R67R66R64R81L4C33R71C34R72C35C36R82R84R21R12R83C200C26C21C29C24C22C27R19R18C136C102C151C150C101C1C6C31R77C201R200R201C202R202W194W195R57R90R58R91C13C15W10W2R50R51R48R49R54R55R52R53R47R41R42R36R40
23、R45R46R43R44R71R72R69R70R75R76R73R74R68R62R63R56R61R66R67R65R13R14R11R12R10R4R5R2R3R8R9R6R7R30R31R28R29R34R35R32R33R27R21R22R25R26R23R24R78R135R136R172R134R140R137R173R126W173R125R130R131R128R129R160R157R163R164R156R150R151R141R154R155R152R153R101R102R88R89R105R106R103R104R87R81R82R79R80R85R86R83R84
24、R116W199W143R120R121R115R109R110R107R108R113R114R111R112R1W77W101W167L2L3L7L8L6L4L5L1C138W32C130C5C124C10C35C140C46C133C111C135C7C127C3C34C131C4C116C115C118C2C144C141C145C112C8C42C43W63C47C44C36C11C9C37C41C12C38C105C33C104C108C107C106C103C32C48C39C117C134W88L10W131C132W129W65C110W69C45C129C40W98W92W
25、23W28W24W15W17W136W139W22W153W151W122W124W71W121W119W127W79W78W68W47W55W56W44W33W36W40W52W51W49W62W66W53W54W59W64W86W82W114W80W83W91W72W87W85W94W73W67W30W29W38W20W75W96W128W111W97W112W115W95W104W109W84W90W105W106W125W34W37W31W35W50W25W117W100W76W58W102W103W93W89W81W108W113W118W137W99W43W138W126W134W
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