Kenwood-DVK750-cd-sm 维修电路原理图.pdf

LRFRONTSURROUNDCENTERSUBWOOFERMIX LINEOUTPUTVIDEOOUTPUTCOAXIALSYSTEMCONTROLOPTICAL7341MIC 2MIC 1POWER- ON OFFON / STANDBYDVD/VCD/CD PLAYER DV-K750SHUTTLE0w8/D.R.I.V.E.DIGITAL AUDIODIGITAL AUDIOCOMPACTCOMPACTTEXTTEXTFLDISPLAYCD/VIDEO-CD/DVD PLAYERDV-K750/S700SERVICE MANUAL 1997-12/B51-5400-00 (K/K) 3207In compliance with Federal Regulations, following arereproductions of labels on, or inside the product relating to laserproduct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.DANGER : Laser radiation when open and interlock defeated.AVOID DIRECT EXPOSURE TO BEAMPanel *(A60-)Dressing panel(A21-3627-12)Dressing panel *(A21-)Dressing panel *(A21-)Dressing panel *(A21-)Front glass(B10-2386-12)Phone jack(E11-0366-05)Knob(K29-6835-12)Indicator(B12-0311-04)Knob(K27-2449-04)Knob(K29-6835-12)Knob(K29-6835-12)Knob(K29-6945-04)Phono jack(E63-0130-08)Phono jack *(E63-)Cylindrical receptacle(E56-0014-05)Miniature phone jack(E11-0188-05)Oscillating module(W02-1114-05)Phono jack(E63-0068-15)Phono jack(E63-0199-05)Power cord bushing(J42-0083-05)AC power cord *(E30-)* Refer to parts list on page 36.Caution : No connection of ground line if disassemble theunit. Please connect the ground line on rearpanel, PCBs, Chassis and some others.NOTE : Please replace the mechanism PCB(W02-2626-05) with new one, if it ismalfunction.DV-K750/S700(K) COVER( 98.2.2 16:37 yW 2RadioFans.CN 收音机爱 好者资料库DV-K750/S7002CONTENTS/ACCESSORIES/CAUTIONSCONTENTS/ACCESSORIES/CAUTIONS.2CONTROLS .3DISASSEMBLY FOR REPAIR.5BLOCK DIAGRAM .9CIRCUIT DESCRIPTION.12ADJUSTMENT.19PARTS DESCRIPTION.20PC BOARD . 21SCHEMATIC DIAGRAM . 23EXPLODED VIEW .33PARTS LIST.36SPECIFICATIONS .45CONTENTSAC plug adapter. (1)(E03-0115-05)Audio cord (Red, White).(1)(E30-0505-05)AccessoriesCautionsSystem control cord.(2)(E30-2733-05)Remote control unit .(1)RC-D0701 : A70-1192-05RC-D0702 : A70-1193-05RC-D0700 : A70-1198-05Digital cord (Orange).(1)(E30-2365-05)Video cord (Yellow) .(1)(E30-1427-05)Use to adapt the plug onthe power cord to the shapeof the wall outlet.(Accessory only for regionswhere use is necessary.)Note related to transportation and movementBefore transporting or moving this unit, carry out the followingoperations.1. Turn the unit ON but do not load a disc.2. Verify that the display shown appears.3. Wait a few seconds and set the unit to STANDBY mode.N O ?D I S C ? ? ? ? ? ? ? ?Beware of condensationWhen the difference between the internal temperature of the unitand external atmosphere is large, dew (mist) may be produced on theinternal parts of the unit. In such a case, turn the unit ON and leaveit for a few hours until the condensation has dried up.Be especially careful in the following conditions:When the unit is brought into a place where there is a large differencein temperature between the previous location, when the humidity ofthe listening room is high, etc.Operation to resetThe microcomputer may fall into malfunction (impossibil-ity to operate, erroneous display, etc.) when the connec-tion cords are unplugged while unit is ON or due to anexternal factor. In this case, execute the following methodto reset the microcomputer and return it to normal condi-tion.While holding the stop (7) key depressed, press thePOWER switch to OFF then ON again.?Please be aware that resetting this unit will erase all stored informa-tion and return it to the factory settings.Batteries (R6/AA).(2)()battery cover : A09-0362-08DV-K750/S700(K) COVER( 98.2.2 16:37 yW 3RadioFans.CN 收音机爱 好者资料库73?4?1MIC 2MIC 1POWER- ON ? OFFON / STANDBYDVD/VCD/CD PLAYER DV-K750SHUTTLE0w?8/D.R.I.V.E.DIGITAL AUDIODIGITAL AUDIOCOMPACTCOMPACTTEXTTEXTFLDISPLAY1683245790!#$%DVD VCDCDP.B.C.DOLBY DIGITALRANDOMPROG.STEREOANGLEREPEAT ALLKARAOKELRTITLE CHAPTER TRACK CD TEXTAB? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Main unit keys with the same names as the keys on theremote control unit have the same functions as them.Main unit (DV-K750)DisplayCharacter information displayPlay and pauseindicatorsDVD, VCD and CD indicatorsVCD and CD informa-tion indicatorsDVD informationindicatorsSpecial playback indicatorsL, STEREO and R indicators1ON/STANDBY () keyPress to turn power of the unit from on to standby or vice versa.2 Standby indicatorLights in power standby mode and goes off in power on mode.3Remote sensor4FL DISPLAY keyPress to switch the displayed information contents.5DVD indicatorLights when a DVD disc is played.6Disc trayPlace the disc to be played on the tray.7Open/close (0) keyPress to open or close the disc tray.(When the unit is connected to another component through a systemcord and is in standby mode, pressing this key automatically turns theunit on and opens the disc tray.)8SHUTTLE (1, ?) controlPress to fast forward or reverse a track or chapter.9POWER switchPress to turn the power of the unit between the standby and offmodes.0MIC 1 and MIC 2 jacks (DV-K750 only)Connect microphones to these jacks.!MIC 1 LEVEL (, ) controls (DV-K750 only)Press to adjust the microphone 1 volume.Karaoke operationindicators (DV-K750only)TEXT DISPLAY key (DV-S700 only)During playback of a CD-TEXT disc, press to switch the characterinformation display.ALL INFO. key (DV-S700 only)During playback of a CD-TEXT disc, press to display all characterinformation available.MIC 2 LEVEL (, ) controls (DV-K750 only)Press to adjust the microphone 2 volume.TITLE SEARCH key (DV-S750 only)During playback of a CD-TEXT disc, press to switch title search on andoff.REPEAT key (DV-S700 only)Press for repeated playback.#Skip (4, ?) keysDVD or VCD: Press either key to skip chapters or locate the begin-ning of a chapterCD:Press to skip tracks or locate the beginning of a track.$Still/pause () keyDVD or VCD: Press during playback to freeze the video or pressduring pause to advance the video frame by frame.CD:Press to let playback pause temporarily.%Stop (7) keyPlay (3) keyPress to play audio and video.(When the unit is connected to another component through a systemcord and is in standby mode, pressing this key automatically turns theunit on and starts playback.)About the STANDBY modeWhile the STANDBY indicator is lit, a small amount of power is supplied to the system to back up the memory. This is called the standby mode. Underthat condition, the system can be turned ON by the remote control unit.DV-K750/S7003CONTROLSRemote control unit1FL DISPLAY key2POWER () key3CD, VCD and DVD operation keysStill/pause () and up (%) keyPress to move the cursor upward or let playback pause temporarily.During VCD or DVD playback, this key is also used to freeze the videoand advance it frame by frame.ENTER keyPress to input the item selected with the cursor. This key is also used tostart playback of the track, chapter or title selected with the numeric keys.Fast forward (?), fast reverse (1), SLOW and left/right (, #) keysPress either key to move the cursor to the left or right or to play a discat a high speed in the forward or reverse direction. During VCD or DVDplayback, these keys are also used in slow playback.Down (fi?) keyPress to move the cursor downward.4CD-TEXT operation keysTEXT DISPLAY key (CD)When a CD-TEXT disc is used, press to switch the character informa-tion display.ALL INFO key (CD)When a CD-TEXT disc is used, press to display all character information.TITLE SEARCH key (CD)When a CD-TEXT disc is used, press to switch the title search modeon and off.POWERFL DISPLAYSTEREOOPEN/CLOSESUBTITLEON/OFFAUDIOANGLETEXTDISPLAYALLINFO.TITLESEARCHCLEARREPEATA-BSELECTP.MODEMEMORYON SCREENSETUPTITLEMENUPREV.NEXTRETURNREMOTE CONTROL UNITRC-D07021234567890ENTER0w?1?374KARAOKEKEY CONTROLECHOSLOWSLOW8/27894350!61The remote control keys with the same names as the keys onthe main unit have the same functions as them.5Numeric (0 to 9) keysPress for direct input of track and chapter numbers. When a CD or VCDdisc is used, press to input the track number to be searched by tracksearch. When a DVD disc is used, press to input the figures for titlesearch, chapter search or time search.6STEREO key (DVD)When a DVD disc is used, press to switch the surround setup on and off.7OPEN/CLOSE (0) key8TV monitor operation keysSUBTITLE key (DVD)During playback of a DVD disc, press to display the subtitle languagecode on the TV screen.SUBTITLE ON/OFF key (DVD)During playback of a DVD disc, press to switch the subtitle on and off.AUDIO key (VCD, DVD)During playback of a VCD disc, press to display the voice languagecode on the TV screen. During playback of a DVD disc, press to switchthe audio between STEREO, L and R.ANGLE key (DVD)During playback of a DVD disc, press to display the angle number onthe TV screen.ON SCREEN key (CD, VCD, DVD)Press to switch the search picture display on the TV screen on and off.RETURN key (VCD, DVD)Press to return to the previous menu.SETUP key (DVD)Press to display the initial setting screen.TITLE key (DVD)Press to display the title menu recorded in the DVD disc.MENU key (DVD)Press to display the DVD menu recorded in the DVD disc.9CD, VCD and DVD operation keysPREV. (4) and NEXT (?) keysPress to skip tracks or locate the beginning of a track. When a VCD orDVD disc is used, press to select the P.B.C., skip chapters or locatethe beginning of a chapter.REPEAT keyPress to switch repeated playback on and off.REPEAT A-B keyUsed in A-B repeated playback.Stop (7) keySELECT/play (3) keyPress to start playback. When a VCD disc is used, press to select amenu in the PBC mode.0Program operation keysCLEAR key (CD, VCD, DVD)Press in the program mode to clear the last track or chapter in theprogram. In the memory mode, press to clear the selected memorynumber. During numeric input, press to clear the input figures.MEMORY key (DVD)Press to store in memory a scene that you want to see later again.P.MODE key (CD, VCD)Press when programming tracks in the desired order.!Karaoke operation keys (DV-K750 only)ECHO (, ) keysPress to adjust the echo effect in the karaoke mode.Flat (I) keyPress to lower the key of the music in the karaoke mode.Natural (?) keyPress to return the key of the music to the original key (0) in thekaraoke mode.Sharp (i) keyPress to higher the key of the music in the karaoke mode.KARAOKE keyPress to switch the karaoke mode on and off.DV-K750/S700(K) COVER( 98.2.2 16:37 yW 673?4?1MAIN POWERREMOTE POWER- ON ? OFFON / STANDBYDVD/VCD/CD PLAYER DV-S700SHUTTLE0w?8/TEXTDISPLAYALLINFO.TITLESEARCH REPEATD.R.I.V.E.DIGITAL AUDIODIGITAL AUDIOCOMPACTCOMPACTTEXTTEXTFLDISPLAY1683245790! #$%&DVD VCDCDP.B.C.DOLBY DIGITALRANDOMPROG.STEREOANGLEREPEAT ALLLRTITLE CHAPTER TRACK CD TEXTAB?Main unit keys with the same names as the keys on theremote control unit have the same functions as them.Main unit (DV-S700)DisplayCharacter information displayPlay and pauseindicatorsDVD, VCD and CD indicatorsVCD and CD informa-tion indicatorsDVD informationindicatorsSpecial playback indicatorsL, STEREO and R indicators1REMOTE POWER keyPress to turn power of the unit from on to standby or vice versa.2 Standby indicatorLights in power standby mode and goes off in power on mode.3Remote sensor4FL DISPLAY keyPress to switch the displayed information contents.5DVD indicatorLights when a DVD disc is played.6Disc trayPlace the disc to be played on the tray.7Open/close (0) keyPress to open or close the disc tray.(When the unit is connected to another component through a systemcord and is in standby mode, pressing this key automatically turns theunit on and opens the disc tray.)8SHUTTLE (1, ?) controlPress to fast forward or reverse a track or chapter.9MAIN POWER switchPress to turn the power of the unit between the standby and offmodes.0TEXT DISPLAY keyDuring playback of a CD-TEXT disc, press to switch the characterinformation display.!ALL INFO. keyDuring playback of a CD-TEXT disc, press to display all characterinformation available.TITLE SEARCH keyDuring playback of a CD-TEXT disc, press to switch title search on andoff.#REPEAT keyPress for repeated playback.$Skip (4, ?) keysDVD or VCD: Press either key to skip chapters or locate the begin-ning of a chapterCD:Press to skip tracks or locate the beginning of a track.%Still/pause () keyDVD or VCD: Press during playback to freeze the video or pressduring pause to advance the video frame by frame.CD:Press to let playback pause temporarily.Stop (7) key&Play (3) keyPress to play audio and video.(When the unit is connected to another component through a systemcord and is in standby mode, pressing this key automatically turns theunit on and starts playback.)About the STANDBY modeWhile the STANDBY indicator is lit, a small amount of power is supplied to the system to back up the memory. This is called the standby mode. Underthat condition, the system can be turned ON by the remote control unit.DV-K750/S7004CONTROLSRemote control unit1FL DISPLAY key2POWER () key3CD, VCD and DVD operation keysStill/pause () and up (%) keyPress to move the cursor upward or let playback pause temporarily.During VCD or DVD playback, this key is also used to freeze the videoand advance it frame by frame.ENTER keyPress to input the item selected with the cursor. This key is also usedto start playback of the track, chapter or title selected with the numerickeys.Fast forward (?), fast reverse (1), SLOW and left/right (, #)keysPress either key to move the cursor to the left or right or to play a discat a high speed in the forward or reverse direction. During VCD or DVDplayback, these keys are also used in slow playback.Down (fi?) keyPress to move the cursor downward.POWERFL DISPLAYOPEN/CLOSESUBTITLEON/OFFAUDIOANGLETEXTDISPLAYALLINFO.TITLESEARCHCLEARREPEATA-BSELECTP.MODEMEMORYON SCREENSETUPTITLEMENUPREV.NEXTRETURNREMOTE CONTROL UNITRC-D07011234567890ENTER0w?1?374SLOWSLOW8/267843591The remote control keys with the same names as the keys onthe main unit have the same functions as them.4CD-TEXT operation keysTEXT DISPLAY key (CD)When a CD-TEXT disc is used, press to switch the character informa-tion display.ALL INFO key (CD)When a CD-TEXT disc is used, press to display all character informa-tion.TITLE SEARCH key (CD)When a CD-TEXT disc is used, press to switch the title search modeon and off.5Numeric (0 to 9) keysPress for direct input of track and chapter numbers. When a CD or VCDdisc is used, press to input the track number to be searched by tracksearch. When a DVD disc is used, press to input the figures for titlesearch, chapter search or time search.6OPEN/CLOSE (0) key7TV monitor operation keysSUBTITLE key (DVD)During playback of a DVD disc, press to display the subtitle languagecode on the TV screen.SUBTITLE ON/OFF key (DVD)During playback of a DVD disc, press to switch the subtitle on and off.AUDIO key (VCD, DVD)During playback of a VCD disc, press to display the voice languagecode on the TV screen. During playback of a DVD disc, press to switchthe audio between STEREO, L and R.ANGLE key (DVD)During playback of a DVD disc, press to display the angle number onthe TV screen.ON SCREEN key (CD, VCD, DVD)Press to switch the search picture display on