Kenwood-KRFVR3090-avr-sm 维修电路原理图.pdf
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1、AUDIO VIDEO SURROUND RECEIVERKRF-V9992DVR-3090/3100SERVICE MANUAL 1999-7/B51-5560-00 (K/K) 1685SYSTEMCONTROLFRONT SPEAKERS(6-16 )CENTER SPEAKER(6-16 )SURROUND SPEAKERSDIGITAL INCD1COAXIALVIDEO 4COAXIALVIDEO 3OPTICALVIDEO 2OPTICALSL 16XS 8( SL 16 ) ( XS 8 )(6-16 ) OPTICALDIGITAL OUTSWITCHEDLRALRLCRBS
2、L 16TEXTIRRECEIVERINRELAYCONTROLIROUTLCDREMOTEIR REPEATER OUTTVON/OFFSENSORLRRRLRANTENNAAM-FM 75GNDCD1PHONOMD/ TAPE 1RECOUTPLAYINRECOUTPLAYINPLAY INPLAY INCD2 /TAPE 2MONITORMONITOR OUTSURROUNDCENTER SUBWOOFERLLRFRONTLRVIDEOS VIDEOVIDEOSECOND ROOM PRE OUTPRE OUTAUDIOVIDEO 3VIDEO 4PLAY INVIDEO 2VIDEO
3、1LRAUDIOPLAY INRECOUT+-AUDIOPHONESINPUT SELECTORVOLUMEDTSDOLBY DIGITALCLIP INDICATORPOWERON/STANDBYABSPEAKERSMUTEDOWNUPDISPLAY MODES VIDEOVL - AUDIO - RCD2 / TAPE2MONITORON OFFAV AUXIndicator(B12-0326-04)Indicator(B12-0333-04)Indicator(B12-0303-24)Panel*(A60-)Knob*(K29-)Knob*(K29-)Knob*(K29-)Front g
4、lass(B10-2418-03)Video cylindrical receptacle*(E56-)Phone jack(E11-0271-05)Phono jack(E63-1030-05)Knob*(K27-)Knob*(K29 -)Lockterminal board(E70-0052-05)AC power cord*(E30-)Miniature phone jack(E11-0373-05)x2Oscillating module(W02-1114-05)AC outlet*(E03-)Screwterminal board(E70-0096-05)Phono jack(E63
5、-0133-15)Phono jack(E63-1028-05)Front glass(B10-2451-03)* Refer to parts list on page 42.Phono jack(E63-1084-05)Phono jack(E63-1005-05)Slide switch(S62-0034-05)Phono jack(E63-0139-15)x2Phono jack(E63-0200-05)Phono jack(E63-0136-15)x2Power cord bushing(J42-0083-05)Screw terminal board(E70-0095-05)Opt
6、ical receiving module(W02-1181-05)x2Video cylindrical receptacle(E56-0011-05)x2Miniature phone jack(E11-0360-05)Phono jack(E63-0162-05)x2Miniature phone jack(E11-0291-05)Miniature phone jack(E11-0374-05)x2Phono jack(E63-1008-05)Note: Keep this manual with the previous manual (B51-5426-00).70%?RadioF
7、ans.CN 收音机爱 好者资料库2KRF-V9992D/VR-3090/3100FM (T90-0841-05) indoor antenna (1)Remote (A70-1285-05)(RC-R1008)Battery cover(A09-1130-08)control unit (1)Loop antenna stand (1)Batteries(R6/AA) (4)AM loop antenna (1) (T90-0833-05)(J19-3645-05)* AC (E03-0115-05) plug adaptor (1)* Use to adapt the plug on th
8、e power cordto the shape of the wall outlet. (Accessoryonly for regions where use is necessary.)CONTENTS / ACCESSORIES / CAUTIONSCONTENTS / ACCESSORIES / CAUTIONS.2ADJUSTMENT. 3PC BOARD .5SCHEMATIC DIAGRAM .13EXPLODED VIEW .41PARTS LIST.42SPECIFICATIONS .44ContentsAccessoriesCOMPARISON TABLECautions
9、How to reset the microcomputerThe microcomputer may malfunction (impossibility of operation,erroneous display, etc.) when the power cord is unplugged andplugged in again while the unit is in ON mode with the keypressed or due to other external causes. In this case, execute theprocedure on the right
10、to reset the microcomputer and return theunit to the normal condition.1 Unplug the power cord from the wall outlet.2 While holding the (ON/STANDBY) key depressed, plug thepower cord into the wall outlet again.?Resetting the microcomputer clears the memory you entered andreturns it to the initial con
11、dition when the unit left the factory.U.S.A. and Canada1 With the power cord plugged in, turn the POWER key OFF.2 Whill holding down the ON/STANDBY key, press POWER key.Expect for U.S.A. and CanadaPlease note that the following items will be deleted fromthis units memory if the power cord is disconn
12、ectedfrom the AC outlet for approximately three days.Memory backup function?The frequency setting is cleared and 87.5 MHz is selected.?The preset station memory is cleared.?The surround setting is cleared and reset to the initial condition.?The input selection is cleared and the “Tuner” input is sel
13、ected.?The volume setting is cleared and the volume is set to “-66 dB”.?The receiving band setting is cleared and the “FM” band isselected.CAUTION:This manual is not available for informations, disassembly for repair, circuit description,adjustment and wiring diagram. Please refer to KRF-V7771D serv
14、ice manual(B51-5426-00).Also parts list is written a different part from B51-5426-00 manual.VR-2080VR-3090VR-2090VR-3100KRF-V8881DKRF-V9992DX07X07-2940-10X07-2940-10X07-2940-10X07-2940-10X07-2940-21X07-2940-21X08X08-2850-10X08-2852-92X08-2850-11X08-2850-11X08-2850-22X08-2850-22X11X11-3800-10X11-3803
15、-81X11-3800-11X11-3802-91X11-3800-21X11-3800-71X25X25-6040-10X25-6042-71X25-6040-11X25-6040-11X25-6040-22X25-6040-22?RadioFans.CN 收音机爱 好者资料库3KRF-V9992D/VR-3090/3100ADJUSTMENTSYSTEMCONTROLFRONT SPEAKERS(6-16 )CENTER SPEAKER(6-16 )SURROUND SPEAKERSDIGITAL INCD1COAXIALVIDEO 4COAXIALVIDEO 3OPTICALVIDEO
16、2OPTICALSL 16XS 8( SL 16 )( XS 8 )(6-16 ) OPTICALDIGITAL OUTSWITCHEDLRALRLCRBSL 16TEXTIRRECEIVERINRELAYCONTROLIROUTLCDREMOTEIR REPEATER OUTTVON/OFFSENSORLRRRLRANTENNAAM-FM 75GNDCD1PHONOMD/ TAPE 1RECOUTPLAYINRECOUTPLAYINPLAY INPLAY INCD2 /TAPE 2MONITORMONITOR OUTSURROUNDFRONTCENTER SUBWOOFERLLRLRVIDE
17、OS VIDEOVIDEOSECOND ROOM PRE OUTPRE OUTAUDIOVIDEO 3VIDEO 4PLAY INVIDEO 2VIDEO 1LRAUDIOPLAY INRECOUT+-AUDIO(A)(B)(C)FM SGFM SGAGMPXAGAC voltmeterDummy antennaOscilloscopeDistortion meterNo.ITEMINPUTSETTINGSOUTPUTSETTINGSRECEIVERSETTINGSALIGNMENTPOINTSALIGN FORFIG.1DISCRIMINATOR(A)98.0MHz 1kHz,75kHz d
18、ev.70dBf (ANT. input)Connect aDC voltmeterbetween CN12 1and CN12 2 (X11)MONO98.0MHzL604(X11)0V2DISTORTION(MONO)(A)98.0MHz 1kHz,75kHz dev. MONO70dBf (ANT. input)(B)MONO98.0MHzL605(X11)Minimumdistortion3DISTORTION(STEREO)(C)98.0MHz 1kHz,67.5kHz dev.Selector : L or R Pilot: 7.5kHz dev.70dBf (ANT. input
19、)(B)AUTO98.0MHzIFT(RFFRONTEND: A1)Minimumdistortion (L or R)4TUNING LEVEL(A)98.0MHz MONO1kHz, 75kHz dev.15dBf (ANT. input)(B)MONO98.0MHzVR601(X11)Adjust VR601and stop at thepoint where ED1(TUNED) goeson.1DISTORTION(STEREO)(C)98.0MHz 1kHz,67.5kHz dev.Selector : L or R,Pilot: 7.5kHz dev.70dBf (ANT. in
20、put)(B)AUTO98.0MHzIFT(TUNER UNIT: A601)Minimumdistortion(L or R)2TUNING LEVEL(A)98.0MHz MONO1kHz, 75kHz dev.15dBf (ANT. input)(B)MONO98.0MHzVR601(TUNER UNIT)Adjust VR601and stop at thepoint whereED1 (TUNED)goes on.FM SECTION : Except M type SELECTOR : FM *Adjust NO.1 and NO.2 repeat.FM SECTION :M ty
21、pe only SELECTOR : FM SYSTEM CONNECTIONS?4KRF-V9992D/VR-3090/3100ADJUSTMENTNo.ITEMINPUTSETTINGSOUTPUT SETTINGSRECEIVERSETTINGSALIGNMENT POINTSALIGN FORFIG.AUDIO SECTION SPEAKER : A PREOUT : OFF PROLOGIC : ONIDLE CURRENTConnect a DC voltmeter across CN1 (each port)1, 2 pin : L5, 6 pin : R3, 4 pin : S
22、L7, 8 pin : SR9, 10 pin : C(FRONT 2chMODE)Volume:0VR1(L)VR2(R) VR3(SL) VR4(SR)VR5(CENTER)(X07-)10mV?ABDFHJCEGI2135746X07-294X-XX A/8 (J70-1153-11)CENTERSPEAKERSURROUNDSPEAKERSLRBAFRONT SPEAKERSLRLRBBEEEEBBBBEEEEBBBBEEEEEBBBBEEEBB129BEBEX07H/8X07G/81313X07 E/8X07 B/8X07 F/8X07 D/8IGOEBX07C/8BE12AC OU
23、TLET16EBBEBEBEBEEB110EBEBEBEBEBBEBEBEBEEBBEBE1316EB115EBEBEBEBBEBE13EBBEEEBB1313POWERRefer to the schematic diagram for the value of resistors and capacitors.PC BOARD(Component side view)56KMOQSLNPRT2135746TGRDSCKRST11SLchSRchCchSWchCONFIGDR1LchRch1DSIDOSRSTDSODSIDRDSODSI11111151151131511DTSAC-3RSTD
24、RDSIDSODSCKRSTR788R574R552R576R575R786C861C862R787R978R977R533C614C463C464C609C627C632C635C629C541C538X2C567C601C604C605C586C570C640C442C441C401C652C405C406C402C539C540C607C606C610C611C569C568C603C602C608C926L1L2C419C420R516C515C518C517C516C851C906C907C908C954C953SRchFLchFRchSLchX3X6X4C633X1DSCKR2R9
25、39R940R938R937R936R935R956C863R957C864C865L55C859C932C885R962R963R965C929R958R959R752R979R980C875W6C884L27L28C894C895W4C948C898R968L62L61C584L701C947R971R972C910R973C909R998C916R982R983L702R984C917R985C930C853C852C449C448C447C801C802C634C450C451C452C641C403C404C444C443C549C548C547C993C550C934C502C58
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