Kenwood-VR4900-avr-sm 电路图 维修手册.pdf

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1、STANDBY ON/STANDBY PHONES DOLBY DIGITALDTS MPEG96kfs D.R.I.V.E.HDCD INPUT SELECTOR VOLUME CONTROL DOWNUP S VIDEOVIDEOL - AUDIO - R ASPEAKERS CD 2 / TAPE 2 MONITORB CLIP INDICATORPRO LOGIC3 STEREO AV AUX POWER DIGITAL OUT DVD CD1 MD/ TAPE1 CD-R VIDEO2 VIDEO3 VIDEO4 OPTICAL DIGITAL IN COAXIAL S VIDEOV

2、IDEO REC OUT PLAY IN REC OUT PLAY IN PLAY IN PLAY IN PLAY IN MONITOR OUT SURROUND CENTERSUBWOOFER DVD/6 CH. INPUT VIDEO4 VIDEO3 VIDEO2 VIDEO1 DVD FRONT RLAUDIO SIGNAL GND RL L R L R AUDIOPRE OUT RF REMOTE ANTENNA SYSTEM CONTROL PHONO CD1 REC OUT PLAY IN MD/ TAPE1 REC OUT PLAY IN CD-R CENTER FRONT SU

3、RROUND SUB WOOFER REC OUT PLAY IN CD2/ TAPE2 MONITOR SL 16 TEXT REMOTE IR OUT LCD IR RECEIVER IN SURROUND SPEAKERSCENTER SPEAKER DC12V 20mA IR REPEATER OUT RL FRONT SPEAKERSB LR A RL C AC 120V 60Hz SWITCHED TOTAL 90W 0.75A MAX ANTENNAGND AM Knob (K29-7729-04) Panel (A60-1777-02) Front glass (B10-357

4、1-02) Indicator (B12-0391-14) Knob (K29-7740-03) Phone jack (E11-0190-05) Panel (A29-1085-13) Knob (K29-7743-04) Cylindrical receptacle (E56-0026-05) Pin jack (E63-1121-05) Optical receiving module (W02-2716-05)x7 Pin jack (E63-1119-05) AC Power cord bushing (J42-0157-05) Pin jack (E63-1130-05) Pin

5、jack (E63-1111-05)x3 Miniature phone jack (E11-0906-05) Pin jack (E63-1125-05)x2 Pin jack (E63-1109-05) Pin jack (E63-1111-05) Oscillating module (W02-2717-05) Pin jack (E63-1123-05) Miniature phone jack (E11-0347-05) Miniature phone jack (E11-0905-05) Pin jack (E63-1128-05) Screw terminal board (E7

6、0-0118-05) AC outlet (E03-0148-05) Illustration is VR-4090-B. Cylindrical receptacle (E56-0028-05) AUDIO VIDEO SURROUND RECEIVER VR-4080-B/4090-B VR-4700/4900 SERVICE MANUAL 2000-4/B51-5612-00 (K/K) 1380 70% Pin jack (E63-1113-05) Pin jack (E63-1124-05)x2 Screw terminal board (E70-0121-05) Pin jack

7、(E63-1117-05) Miniature phone jack (E11-0907-05) Lock terminal board (E70-0080-05) Cylindrical receptacle (E56-0030-05)x2 AC power cord (E30-2944-05) RadioFans.CN 收音机爱 好者资料库 RF REMOTE CONTROL UNIT RC-R0910 2WAY LCD REMOTE CONTROL UNIT + - + - 123 456 789 101112 +100+100 / / BatteriesAM Loop Antenna

8、(T90-0852-05) RF remote Antenna (T90-0850-05) FM Antenna (T90-0855-05) Battery cover(A09-1166-08) Battery cover(A09-1177-08) Pen(W01-0976-08) Remote control unit (A70-1312-05): RC-R0911 ENTER V O L U M E UP DOWN CONFIRM ON/STANDBYCONTRASTREMOTE OFF Remote control unit (PowerTouch) (A70-1349-05): RC-

9、R1110 VR-4080-B/4090-B/4700/4900 2 CONTENTS / ACCESSORIES / CAUTIONS CONTENTS / ACCESSORIES / CAUTIONS. 2 CONTROLS .3 DISASSEMBLY FOR REPAIR.5 CIRCUIT DESCRIPTION.6 ADJUSTMENT.16 WIRING DIAGRAM.18 PC BOARD . 19 SCHEMATIC DIAGRAM . 32 EXPLODED VIEW .63 PARTS LIST.65 SPECIFICATIONS .77 Contents Access

10、ories Cautions Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”,“AC-3”, and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpub- lished Works. 1992-1997 Dolby Laboratories. All rights reserved. Manufactured under license from Digital Theater Sys- tems

11、, Inc. US Pat. No. 5,451,942 and other world- wide patents issues and pending. “DTS” and “DTS Digital Surround” are trademarks of Digital Theater Systems, Inc. 1996 Digital Theater Systems, Inc. All rights reserved. , HDCD, High Definition Compatible Digital and Pacific Microsonics are either regist

12、ered trade- marks or trademarks of Pacific Microsonics, Inc. in the United States and/or other countries. HDCD sys- tem manufactured under license from Pacific Micro- sonics, Inc. This product is covered by one or more of the following: IN the USA: 5,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,2

13、74, 5,854,600, 5,864,311, 5,872,531, and in Australia: 669114. Other patents pending. TM MODEL vs PCB MODELDESTIX05-510X05-513X07-315X08-302X11-387X13-770X25-632X35-223X92-219 VR-4080-BK0-100-110-110-100-100-100-12 VR-4080BP0-100-110-110-100-100-100-12 VR-4090-BK0-100-110-100-100-110-110-11 VR-4090-

14、BP0-100-110-100-100-110-110-11 VR-4700K0-100-110-100-100-110-110-11 VR-4700P0-100-110-100-100-110-110-11 VR-4900K0-100-100-100-110-120-120-100-100-10 RadioFans.CN 收音机爱 好者资料库 VR-4080-B/4090-B/4700/4900 3 CONTROLS 1. STANDBY indicator light 2. POWER ON/STANDBY key (VR-4090/VR-4080) ON/STANDBY key (KRF

15、-V7773D) 3. POWER ON /OFF switch (KRF-V7773D) 4. PHONES jack 5. SPEAKERS A/B key 6. INPUT MODE key 7. CD 2/TAPE 2/MONITOR key 8. LISTEN MODE key 9. SET UP key 10. SOUND key 11. MULTI CONTROL (Up/Down) key 12. P.CALL (Up/Down) key 13. MEMORY key 14. AUTO key 15. BAND key 16. AV AUX input jacks 17. VO

16、LUME CONTROL knob 18. INPUT SELECTOR key 19. Indicators CLIP INDICATOR PRO LOGIC 3 STEREO 20. Indicators DTS /96 k fs /HDCD DOLBY DIGITAL /MPEG /D.R.I.V.E. 21. D I S P LAY 22. 2-way communication indicator 23. Infrared remote sensor (KRF-V7773D only) 24. Indicators SPEAKERS A/B CD 2/TAPE 2 MONITOR 2

17、5. Infrared remote transmitter Key 5 to 15 are located inside the panel door. Whats on the Front Panel of Your Kenwood Audio-Video Receiver? Standby mode While the standby indicator of the unit is lit,a small amount of current is flowing into the unit s internal circuitry to back up the memory.This

18、condition is referred to as the standby mode of the unit.While the unit is in the standby mode,it can be turned ON from the remote control unit. STANDBY ON/STANDBY PHONES DOLBY DIGITALDTS MPEG96kfs D.R.I.V.E.HDCD INPUT SELECTOR VOLUME CONTROL DOWNUP S VIDEOVIDEOL - AUDIO - R ASPEAKERSB INPUT MODE CD

19、 2/TAPE 2 MONITOR LISTEN MODESET UPSOUND MULTI CONTROL P.CALLMEMORYAUTOBAND ASPEAKERS CD 2 / TAPE 2 MONITORB CLIP INDICATORPRO LOGIC3 STEREO AV AUX 122 34568101112131516 17 18 1920212324 1479 POWER POWER ON/STANDBY ON OFF KRF-V7773D 2225 Keys behind the door Main unit Whats on Remot Control unit? Re

20、mote control 2WAY LCD REMOTE CONTROL UNIT MUSICMOVIETV CONFIRM/SHIFT AV POWERSYS.POWER TITLE/GUIDEMENU MACRO F.SHIFT + - + - REC REC MODE LEARN SOUND TUNING BAND LISTEN M. INPUT MODESTATUSDIMMER SUB W. MUTE ENTER AUTO/MONO REPEATRANDOMINPUT SEL. TV SELECTDISPLAYSELECT AUDIOTHEMEFAVORITE INFO.EXITLAS

21、T CHANNEL REMOTE CONTROL UNIT CH. CH.VOL. VOL. RETURN /PAGE OSD /PAGE 1 2 3 4 5 6 7 9 8 11 10 13 14 12 15 18 20 22 24 16 17 19 21 23 25 1. LCD indicators 2. LCD function key 2 3. LCD function key 1 4. CONFIRM/SHIFT key 5. MACRO key 6. AV.POWER key (AV device Power key) 7. AV device control keys : Pl

22、ay 4 , : Skip 8 : Pause 7 : Stop 8. CH.(+/-)key (AV device control keys) 9. SOUND (INPUT MODE) key 10. LISTEN M.(DIMMER) key 11. TITLE/GUIDE key (AV device control key) 12. 5Cursor up (8 PAUSE)key Cursor down (AUTO/MONO, 7 STOP) key left,right (TUNING)keys ENTER (BAND)(Play)key 13. RETURN/PAGE key (

23、AV device control key) 14. REC (Recording)(REC MODE) key5 15. Numeric keys (AV device control keys) 16. LCD cursor up/down keys 17. Input selector keys MUSIC: Audio device selector key MOVIE: Video device selector key TV: TV/video monitor selector key 18. SYS.POWER (Receiver power)key 19. VOL.(+/-)k

24、eys 20. MUTE key 21. SUB W.(STATUS)key 22. MENU key (AV device control keys) 23. OSD/PAGE 5 key (AV device control key) 24. LEARN key 25. F.SHIFT (Backlight)key How to operate the F.SHIFT key: In addition to the functions marked on the remote control keys,those marked in blue characters above the ke

25、ys can be used. To use these functions,press the F.SHIFT key then press the desired key within 8 seconds. (Example)To use the REPEAT function,press the F.SHIFT key then press key 1 (REPEAT). RadioFans.CN 收音机爱 好者资料库 VR-4080-B/4090-B/4700/4900 4 CONTROLS LCD Indicators 1. Playback/recording mode indic

26、ators Play indicator/ 8 :Pause indicator/ REC:Record indicator/ 7 :Stop indicator 2. Character display Shows various information such as the input device name and track number. 3. Current function of LCD function key 1 4. Current function of LCD function key 2 5. Communication indicators :Sending. :

27、Receiving. 6.Battery indicator appears when the batteries are nearly exhausted.In this case, replace all of the four batteries together. To switch the menu: The menu can be switched over or selected while LCD function key 1 and/or 2 are displayed. (Examples:Home,Back,Menu,Enter,etc.) 2WAY LCD REMOTE

28、 CONTROL UNIT RECREC 34 51 2 6 Whats on Power Touch? (RC-R1110) ENTER V O L U M E UP DOWN MUTE SYS.POWER CONTRASTBACKLIGHT e d i t m o v i e m u s i c s o u n d l i s t e n m o d e m a c r o CONFIRM 1 2 3 4 567 8 10 9 1. Joystick 2. Confirm button 3. Mute button 4. Volume up/down button 5. Contrast

29、button 6. On/Standby button 7. Backlight button 8. Quick Access menu 9. Touch screen display 10. Stylus (stored on top edge) x2 x5 x57 4 4 1 1 1 3 2 6 x55 5 HOOK X11 (A/4)CN301 CN7 CN8 X13 X07,CN1 MOTOR AC CONNECTOR H/P PCB X25 (G/8) VR-4080-B/4090-B/4700/4900 5 DISASSEMBLY FOR REPAIR 1x70 X07 (C/7)

30、 CN2 X25 (C/9) X05-5130-11 X07 X13 (C/5) CN12 CN21 4 5 7 7 8 3 3 2 2 2 2 2 2 9 6 6 7 x9 x2 2 x2 x2 X07-3150-10 (A/5) X25 (B/9) X11 (C/4) 10 x3 10 10 11 10 10 10 CN14 CN6 1. Take out the connectors (1) X07,CN1/X13(CN7,CN8) and the AC connetor(2). 2. Take the lead (3) out of CN301 on X11(A/4) PCB. 3.

31、Take out the screws (4) and (5). 4. The front panel can be separated by removing 2 hooks (6) on the sub panel. 5. To separate the motor from the front panel, remove the screws (7). 1. The rear panel can be separated by removing screws (1) on the rear panel. 2. Take the AC connector out of CN2 on the

32、 X07(C/7). 3. To separate the chassis from bottom chassis, remove the screws (2). 4. Remove CN21 and screws (3) on X13(C/5). 5. Remove screws (4 to 7). 6. The fan motor can be separated by removing screws (8) and the connector (CN12) on X07 PCB. 7. Take the PCB X25(B/9), X11(C/4) out of X07. 8. To s

33、eparate the main PCB (X07) from the bottom chassis, remove screws (0). 9. Set up the PCB as figure (-). 10. Replace the defective transistors. HOW TO REPLACE THE POWER TRANSISTOR. HOW TO REMOVE THE FRONT PANEL AND THE MOTOR. VR-4080-B/4090-B/4700/4900 6 CIRCUIT DESCRIPTION 0 : Pull down,1:Pull up SE

34、T TYPE TYPEBAND RECEIVING FREQUENCY RANGE CHANNEL SPACE IFPLL DIODE SW(X13) DSW3 (R282,R285) DSW2 (R292,R279) DSW1 (R296,R284) DSW0 (R297,R288) K, P, R K1 1700 FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz 0000 AM530kHz-1700kHz10kHz+450kHz10kHz Y, M, I, C, V K2 1610 FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz 001

35、1 AM530kHz-1610kHz10kHz+450kHz10kHz Y K3 1610 RBDS FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz 0010 AM530kHz-1610kHz10kHz+450kHz10kHz K, P K4 1700 RBDS FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz 1010 AM530kHz-1700kHz10kHz+450kHz10kHz Y, M, I, C, V, E, X, H E1 FM87.5MHz-108.0MHz50kHz+10.7MHz25kHz 0001 AM531kHz-

36、1602kHz9kHz+450kHz9kHz T E2 LW FM87.5MHz-108.0MHz50kHz+10.7MHz25kHz 0100MW531kHz-1602kHz9kHz+450kHz9kHz LW153kHz-279kHz9kHz+450kHz9kHz E, T E3 RDS FM87.5MHz-108.0MHz50kHz+10.7MHz25kHz 0101 AM531kHz-1602kHz9kHz+450kHz9kHz T E4 LW RDS FM87.5MHz-108.0MHz50kHz+10.7MHz25kHz 0110MW531kHz-1602kHz9kHz+450kH

37、z9kHz LW153kHz-279kHz9kHz+450kHz9kHz Q Q1 RDS FM L65.0MHz-74.0MHz10kHz+10.7MHz5kHz 1011FM H87.5MHz-108.0MHz50kHz+10.7MHz5kHz AM531kHz-1602kHz9kHz+450kHz9kHz Q Q2 RDS FM L65.0MHz-74.0MHz10kHz+10.7MHz5kHz 1100 FM H87.5MHz-108.0MHz50kHz+10.7MHz5kHz MW531kHz-1602kHz9kHz+450kHz9kHz LW153kHz-279kHz9kHz+45

38、0kHz9kHz Y, M, I, C, V M K2/E1 are switched by DSW1. (DSW1 = 1:K2type, 0: E1type) 00X1 Y Y RBDS K3/E1 are switched by DSW0. (DSW0 = 0:K3type, 1: E1type) X001X DIODE SW(DSWx) 0 = NO DIOE(1 = WITH DIODE X = TRANSISTOR SW(0=OFF/1=ON) 1. Initialization 1-1 The Initial Setting Insert the power cord to AC

39、 wall outlet by pressing the POWER key. 1-2 The Initial Condition Power On/Off: Off Volume Level: -66dB Audio Input Selector: TUNER Video Signal Input Selector: VIDEO1 Remote Control Sensor: Data Front In Speaker A: On Speaker B: Off CD2/TAPE2 MONITOR: Off(TAPE MODE) Tone : Off Loudness : Off Displa

40、y Mode: DEVICE+DGTL/ANLG Digital Rec Mode: Off Dimmer: Dimmer 1 Input Mode: DGTL/ANLG-AUTO Digital Rec Mode: Off HDCD/DRIVE: HDCD/DRIVE AUTO Surround Mode: Stereo Room Size : Medium Wall Type: Medium Effect Level: 3 Midnight Mode : Off Distance: FL/FR:10ft : C:10ft : RS/LS: 5ft : SW:10ft Front Speak

41、er: Large Center Speaker: Normal Surround Speaker: Normal Subwoofer: On SW Re-Mix: OFF Input Level: 0dB Each Speaker Level: 0dB Tone Bass: 0 Tone Treble: 0 Tuning Mode: Auto Preset Memory: Test frequency Last Band: FM FM Last Frequency: 87.5MHz (OTHER THAN) : 76.0MHz (J) AM Last Frequency: 531kHz (C

42、H.SP 9kHz) : 530kHz (CH.SP 10kHz) Last P.ch: -ch 2. Destination List of Tuner VR-4080-B/4090-B/4700/4900 7 CIRCUIT DESCRIPTION 3. Test Mode 3-1 Entering the Test Mode While pressing the INPUT SELECTOR DOWN key, plug the power cord into AC wall outlet. 3-2 Cancelling the Test Mode Initialized and can

43、cel the test mode if pulling out the power cord. Not initialized and cancel the test mode if the power switch turns off. 3-3 Contents of the Test Mode 3-3-1 Key Operation The following operation is available when the FL is all lighting up mode only. KEYOPERATIONDISPLAY SOUND Set up the RF frequency

44、to 411.3MHz.RF 417.3MHz LISTEN MODESet up the RF frequency to 414.3MHz.RF 414.3MHz INPUT MODESet up the RF frequency to 411.3MHz.RF 417.3MHz SET UPIndicates Tuner destination on the FL. EX. TYPE E1TYPE E2 MEMORYChanged dimmer off/1/2cyclically.All FL light onALL FL light off BAND KEYIndicates the u-

45、com version.EX. Ver . XXXXXX-X (Main) u-com PD784215-GF570 PANEL KEY FL DRV uPD780204 FL POWER , INPUT UP/DOWN KEY SP. RLY MUTING SELECTOR IC X11, IC3 X13, IC81 X13, IC22 X11, IC5 X13, IC82 X25, IC4 X11, IC1 X25, IC3 VOL. IC X11 IC301304 X13, IC71 X25, IC1 X25, ED1 X08, IC40 X13, IC1/5/7/8 X05, IC2

46、NJU71311 SELECTOR IC NJU71312 SELECTOR IC NJU71313 SUB u-com uPD784036 VIDEO PANEL DOOR DESTINATION SELECTOR IC BA7649 LCD REMOTE TRANSMIT IC uPD17215 PLL for Remocon Model LV2105V TUNER UNIT LC72131 VOLUME IC TC9459F VOLUME IC TC9459F VOLUME IC TC9459F VOLUME IC TC9459F TONE CONTROL IC TC9184 PROTE

47、CTION POWER RLY IR RECEIVER SL16 UART IR/RF Front/Rear switch IR/RF Front/Rear switch ROTARY ENCODER RELAY CONTROL FAN 4. Main Microprocessor : uPD784215-GF570 (X13, IC23) 4-1 Main Microprocessor Periphery Block Diagram VR-4080-B/4090-B/4700/4900 8 CIRCUIT DESCRIPTION Pin No.Pin NameI/ODescription 1-8REM_D0-D7OLCD ROMOTE DATA OUT (0-7) 9VDD-+5V POWER SUPPLY 10VOL_DATAOVOLUME IC DATA OUT 11VOL_CLKOVOLUME IC CLOCK 12VOL_STBOVOLUME IC STROBE 13TONE_STBOTONE IC STROBE 14VOL/TONE/SEL_DATAOTONE/SELECTOR IC DATA OUT 15VOL/TONE/SEL_CLKOTONE/SELECTOR IC CLOCK 16-18SEL_STB1-3OSELECTOR IC S