Kenwood-KRFVR5090-avr-sm 电路图 维修手册.pdf

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1、PHONES THXDOLBY DIGITAL DTSMPEG D.R.I.V.E.HDCD INPUT SELECTOR VOLUME CONTROL DOWNUP AV - AUX S VIDEOVIDEOL - AUDIO - R CLIP INDICATOR ON/STANDBY REMOTE POWER CD 2 / TAPE 2 MONITOR SURROUND BACK96kfs STANDBY DISCRETE 6.1MATRIX 6.1NEO : 6PRO LOGIC DTS-ES OPTICAL VIDEO 4 VIDEO 3 VIDEO 2 CD-R MD/ TAPE1

2、CD1 DVD EXT.CONTROL RS-232C DIGITAL IN COAXIAL DIGITAL OUT VIDEO 3 IN COMPONENT VIDEO DVD IN MONITOR OUT MONITOR OUT PLAY IN PLAY IN PLAY IN PLAY IN REC OUT REC OUT PLAY IN S VIDEOVIDEO PRE OUTZONE B PRE OUT RLAUDIO RLFRONTRLSURROUNDRLRLSURROUND BACKSUB WOOFERCENTERVIDEO RL B A AUDIO VIDEO1 VIDEO2 V

3、IDEO3 VIDEO4 DVDFRONT DVD/ 6CH. INPUT SURROUND CENTERSUBWOOFER PHONO CD1 REC OUT PLAY IN MD/ TAPE1 REC OUT PLAY IN CD-R REC OUT PLAY IN CD2/ TAPE2 MONITOR CENTER SPEAKER (616) SURROUND SPEAKERS (616) FRONT SPEAKERS (616) ANTENNA GND AM FM 75 SYSTEM CONTROL SL16 TEXT REMOTE IR OUT LCD IR OUT LCD REMO

4、TE IR RECEIVER IN IR RECEIVER IN IR REPEATER OUT/ DVD CONTROLRF REMOTE ANTENNA C R L R L AB DC12V 20mA DC12V 20mA PR/CR PB/CB Y PR/CR PB/CB Y PR/CR PB/CB Y AC 120V 60Hz SWITCHED TOTAL 90W 0.75A MAX. Front glass (B10-3639-02) Knob * (K29-) Panel * (A60-) Phone jack (E11-0190-05) Knob * (K29-) Indicat

5、or (B12-0392-14) Knob * (K29-) Cylindrical receptacle (E56-0026-05) Pin jack (E63-1121-05) Pin jack (E63-1128-05) Retangular receptacle (E58-0033-05) Pin jack * (E63-) Oscillating module (W02-2717-05) Indicator (B12-0391-14) Panel * (A29-) Miniature phone jack * (E11-) Miniature phone jack * (E11-)

6、Lock terminal board * (E70-) AC power cord bushing * (J42-) Pin jack * (E63-)x3 Pin jack * (E63-) Pin jack * (E63-)x2 AC outlet * (E03-) Screw terminal board (E70-0131-05) Pin jack * (E63-) Screw terminal board (E70-0133-15) Miniature phone jack (E11-0347-05) Pin jack * (E63-)x2 Pin jack * (E63-) Pi

7、n jack * (E63-) Cylindrical receptacle * (E56-) Pin jack * (E63-) Miniature phone jack (E11-0907-05) Pin jack * (E63-) Pin jack * (E63-) Pin jack * (E63-) 70% AUDIO VIDEO SURROUND RECEIVER 2001-5/B51-5723-00 (K/K) 3164 * Refer to parts list on page 55. KRF-X7775D/X7775D-S SERVICE MANUAL VR-5080/5090

8、 Illust is KRF-5090. Pin jack * (E63-) AC power cord * (E30-) Cylindrical receptacle * (E56-) Optic receiving module (W02-2716-05) Cylindrical receptacle * (E56-) Miniature phone jack * (E11-) RadioFans.CN 收音机爱 好者资料库 KRF-X7775D/X7775D-S/VR-5080/5090 2 CONTENTS / ACCESSORIES CONTENTS / ACCESSORIES .

9、2 DISASSEMBLY FOR REPAIR.3 BLOCK DIAGRAM .5 ADJUSTMENT.6 WIRING DIAGRAM.8 PC BOARD . 9 SCHEMATIC DIAGRAM . 22 EXPLODED VIEW .53 PARTS LIST.55 SPECIFICATIONS .69 Contents RF REMOTE CONTROL UNIT RC-R0910 2WAY LCD REMOTE CONTROL UNIT + - + - 123 456 789 101112 +100+100 / / BatteriesAM Loop Antenna (T90

10、-0852-05) FM Antenna (T90-0855-05) Battery cover(A09-1166-08) Remote control unit (A70-1453-05): RC-R0913.KP1K1P2 (A70-1454-05): RC-R0914.M1X1Y1V (A70-1455-05): RC-0915.E1E2 AC plug adaptor * Refer to parts list. *. (1) Use to adapt the plug on the power cord to the shape of the wall outlet. (Access

11、ory only for regions where use is necessary.) (T90-0850-15) U.S.A. only Antenna assy Accessories 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

12、. All rights reserved. Manufactured under license from Digital Theater Sys- tems, 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,

13、High Definition Compatible Digital and Pacific Microsonics are either registered 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 th

14、e following: IN the USA: 5,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274, 5,854,600, 5,864,311, 5,872,531, and in Australia: 669114. Other patents pending. TM RadioFans.CN 收音机爱 好者资料库 KRF-X7775D/X7775D-S/VR-5080/5090 3 DISASSEMBLY FOR REPAIR 2x8 3 4 5 6 1x61 CN10 X07 C/5 X25 C/11 X25 B/11 CN102

15、 CN16 CN103 X13 A/6 CN101 10 x2 10 11 10 x210 x2 7 8 9 X25 B/11 X11 A/2 X05 CN1 FRAME(A) FRAME(C) FRAME(B) 10 x2 12x2 12 How to Remove the Front Panel 1. How to Remove the Front Panel 1. Remove the screws (1X3) on top of the panel. 2. Remove the screws (2X9) located at the the bot- tom of the panel.

16、 3. Disconnect the cable (3) and connectors (4,5) on the X13 A/6. 4. Disconnect the connector (6) on the X07 A/5. 5. Cut the tie band (7X7) as shown in the figure. 6. Remove the screw (8X1) on the X25 F/11. 7. Disconnect the connector (9) on the X25 G/11.(Except K/P type) 8. Remove the hooks (0X2) o

17、n the sub panel. 9. Remove the front panel in the direction of arrow. Disassembling the Rear Panel and How to Replace the Power Transistor 1. Disconnect the CN10 on the X07 C/5. 2. Remove all of screws (1X61) and digital caps (2X8) on the rear panel. (The number of screws and caps are vary accord- i

18、ng to the models). 3. Disconnect the cable CN16 (3) on the X13 A/6. 4. Disconnect the flexible cables CN101(4) on the X25 C/11, CN102 (5) and * CN103 (6)on the X25 B/11. * (K/P type only). 5. Remove the rear panel in the direction of arrow. 6. Remove the screw (7), then remove the X25 B/11. 7. To re

19、move the tuner unit, disconnect the CN1 (8) and remove a screw (9). 8. Remove the screws (0X9) on the frames (A/B/C), push rivet (-) and PC support (=x2)on the X11 A/2. HOOK X13 (A/6) CN3 CN2 CN1 AC CONNECTOR (EXCEPT K/P) X25 (F/11) X25 (G/11) X07 (A/5) CN8 45 3 x31 x52 x77 x42 8 6 9 10 x2 RadioFans

20、.CN 收音机爱 好者资料库 KRF-X7775D/X7775D-S/VR-5080/5090 4 DISASSEMBLY FOR REPAIR 9. To remove the frame A rearward, cut the tie bands (X4) on the frames. 10. Remove a screw (!), then remove a thermostat. 11. Remove the screws (X8), then remove a frame (D), and X07 B/5. 12. To remove a power amplifier unit (

21、X07 A/5), remove the screws (#x4), and a PC support ($x2). 13. Set up the X07 A/5 in the direction of arrow as shown in the figure. 14. Replace the defective transistor. 15x2 15x2 15x3 15 X07 B/5 FRAME(A) FRAME(D) X07 A/5 X07 A/5 16 16 16 16 17x2 14 13x4 KRF-X7775D/X7775D-S/VR-5080/5090 5 BLOCK DIAG

22、RAM REC OUT SW TAPE2 REC BUFFER OUTPUT MUTE ON DIG REC 200mV 36mV 200mV 200mV INPUT SEL. ZONE A BUFFER DIG REC OUT (0dB or +6dB) OPTICAL OUT COAXIAL OUT COAXIAL OPTICAL DIGITALINPUT SEL. OPTICAL COAXIAL COAXIAL OPTICAL OPTICAL COAXIAL COAXIAL OPTICAL OPTICAL COAXIAL COAXIAL OPTICAL VIDEO2 VIDEO3 DVD

23、(6ch IN) VIDEO4 CD-R MD/TAPE1 CD AV AUX IN 200mV INPUT SEL. ZONE B CD2 TAPE2 MON1 2.5mV (38dB) BUFFER LINE(0.-3.-6dB) OFF -3dB ON -6dB BUFFER INPUT ATT BUFFER (-6dB) 200mV MAX:1.0Vrms FL.FR SUB CENTER SL.SR SBL.SBR (0dB) 50kHz LPF 1kHz LPF (0dB) (0dB) (0dB) (0dB) 50kHz LPF 50kHz LPF 50kHz LPF SW ON

24、DIG SW OFF DIG ANA CONFIG-2 FILTER ON ANA TONE OFF TONE (0dB) TONE OFF ATT OFF ZONE B LINE BUFFER BUFFER BUFFER BUFFER (+15dB) SUB 6ch IN CENTER 6ch IN 6ch IN SL SR 6ch INPUT SEL. SP B CENTER SL.SR SBL,SBR SUB (4.7dB or 14.7dB) (14.5dB) (5.2dB or 15.2dB) (5.2dB or 15.2dB) (5.2dB or 15.2dB) (5.2dB or

25、 15.2dB) A-10dB GAIN CONT. ZONE B ZONE B B SOURCE AMPLIFIER (29dB) AMPLIFIER AMPLIFIER (29dB) (29dB) F/C/SW-MUTE SP B/S-MUTE PRE S-MUTE PRE ZB-MUTE SUB-MUTE RELAY CS RELAY A RELAY B OUTPUT MUTE K5 K1 K3 K4 K2 Y PB/CB PR/CR PB/CB PR/CR Y 6dB AMP 6dB AMP 75ohm DRIV. B SOURCE PAL NTSC 75ohm DRIV 6dB 75

26、ohm DRIV 6dB AMP 75ohm DRIV NONE CRAMP NONE CRAMP L601(K/P/J) L603(OTHERS) OUTPUT MUTE L601(K/P/J) L602(OTHERS) AC IN RELAY POWER FAST OFF ATT ON VIDEO2 REC VIDEO1 REC CD-R REC MD/TAPE1 REC MUTE Q11,12 MUTE Q1,2 IC4 CD2/TAPE2 REC CENTER SUB SL.SR L.R DVD 6ch IN IC32 VIDEO4 IN CD1 IN CD2/TAPE2 MONI C

27、D-R IN MD/TAPE1 IN IC22 VIDEO3 IN VIDEO1 IN VIDEO2 IN FM AM TUNER IC1 EQ PHONO IN IC28 IC8.9 ADC IC7 DIR IC6 DSP EP ROM SDRAM SDRAM DAC IC31 X08IC32 X08IC33 X08IC34 DAC DAC DAC IC11 X08 IC17 IC14 X08 X08 IC20 IC12,13 IC18,19 IC21,22 IC15,16 IC18,19 TONE IC34 IC23 IC5 IC26 IC27 (2/2) IC27 (1/2) IC24

28、FL.FR VOLUME VOLUME CENTER SBL.SBR VOLUME VOLUME SL.SR SUB W VOLUME VOLUME ZONE B IC8 IC10 IC12 IC35 IC10 IC6 IC9 IC11 IC36 IC13 IC7 IC11 Q1,2 Q101 Q51,52 Q301-320 MUTE PHONES L.R SL.SR C SL.SR C L.R ZONE B-SPEAKERS ZONE B SW SBL.SBR B-SPEAKERS A-SPEAKERS PRE OUT 1V IC23 IC24 VIDEO3 DVD COMPONENT Y

29、Cb Cr MONITOR OUT X13,IC701-703 or X35,IC1-3 AV AUX VIDEO4 VIDEO2 VIDEO3 VIDEO1 IC22 IC21 DVD/6ch DECODER 4.43MHz 3.58MHz IC5 X35 MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MONITOR ZONE B MUTE MUTE MUTE MONITOR ZONE A VIDEO2 REC VIDEO1 REC OUT COMPOSITE SEPARATE C DVD/6ch VIDEO1 VIDEO3 VIDEO2 VIDE

30、O4 AV AUX IC602 VIDEO1 REC VIDEO2 REC MONITOR MUTE MUTE MUTE C OUT AV AUX DVD/6ch VIDEO4 VIDEO2 VIDEO3 VIDEO1 SEPARATE Y IC601 Y OUTVIDEO2 REC VIDEO1 REC MUTE MUTE IC604 IC606 BPF IC603 IC605 MUTE TRAP MONITOR SYSTEM CONTROL SL16 TEXT TV POWER SENSOR RELAY COMTROL RS232C RDS TUNER TONE ON/OFF DIG.AN

31、A.SEL. INPUT ATT REC OUT SW ANALOG SW ZONE A SEL. ZONE B SEL. SUB-MUTE MUTE CONTROL PRE S.SB PRE ZONE B SP SL.SR/B FL.FR.C.SW OUTPUT TONE CONTROL VOLUME CONTROL RELAY A RELAY POWER RELAY B RELAY CS SP RELAY CONT. FL FL DRIVER MAIN u-COM SUB u-CON LED DISPLAY KEY MATRIX RF/IR RECEIVER DOOR MOTOR CONT

32、. FAN DRIVE IR IN/OUT B u-COM IR IN/OUT A I/V PROTECT DET. THERMAL SENSOR OUT POWER DET. IR TRANSMIT EP-ROM DAC DSP UNIT DIR DSP ADC VIDEO SELECTOR DIG.INPUT SEL. X25,ED1 X25,1IC X13,IC3 X08,IC43 for VIDEO UNIT +6V 1st AVR +6V 1st AVR for DSP UNIT TONE CONTROL VOLUME ANALOG SW for POWER AMP 60V SUPP

33、LY -35V AVR for FL V-LOAD FL FILAMENT -15V 1st AVR for u-COM +30V for RELAYS & FAN BACK UP 5.6V AVR IR RECEIVER THERMAL SENSOR u-CON CONTROL X13,Q41 X13,Q45 X13,Q33,34 X07,D100 X07,Q407 X13,D71 X13,Q51 X13,IC1 POWER SUPPLY OP AMP 17V AVR SUB TRANS MAIN TRANS AUDIO SECTION VIDEO SECTION (X08-) , (X25

34、- ) (X25- ) (X08- ) (X07- ) (X25- ) (X11- ) (X13- ) / (X35- ) (X11- ) (X13- ) VR-5080/5090/5700/5900 KRF-X7775D/X7775D-S/X9995D/X9995D-S KRF-X7775D/X7775D-S/VR-5080/5090 6 CIRCUIT DESCRIPTION 0 : Pull down,1:Pull up SET TYPE TYPEBAND RECEIVING FREQUENCY RANGE CHANNEL SPACE IFPLL K, P, R K1 1700 FM87

35、.5MHz-108.0MHz100kHz+10.7MHz25kHz AM530kHz-1700kHz10kHz+450kHz10kHz Y, M, I, C, V K2 1610 FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz AM530kHz-1610kHz10kHz+450kHz10kHz K, P K4 1700 RBDS FM87.5MHz-108.0MHz100kHz+10.7MHz25kHz AM530kHz-1700kHz10kHz+450kHz10kHz Y, M, I, C, V, E, X, H E1 FM87.5MHz-108.0MHz50kH

36、z+10.7MHz25kHz AM531kHz-1602kHz9kHz+450kHz9kHz E, T E3 RDS FM87.5MHz-108.0MHz50kHz+10.7MHz25kHz AM531kHz-1602kHz9kHz+450kHz9kHz 1. Initialization 1-1 The Initial Setting Insert the power cord to AC wall outlet by pressing the ON/STANDBY key. 2. Destination List of Tuner 3. Conditions according to th

37、e models or destination 3-1 Distinction of Destination : u-com (X13,IC3) Port 54 TypeVoltage : Max 5.0V K200.52 K11.612.49 K4(RBDS)2.513.39 E3(RDS)3.414.45 E14.475.00 ModelsVoltage : Max 5.0V VR-5080NO00.37 VR-5090YES0.391.10 VR-5700YES1.121.84 VR-5900-SYES1.862.49 KRF-X9995D/D-SYES2.513.14 KRF-X777

38、5D/D-SYES3.163.88 KRF-X9995D-S (M/X TYPE) NO3.904.61 KRF-X7775D-S (M/X/V TYPE) NO4.635.00 3-2 Distinction of Models : u-com (X13,IC3) Port 53 Switching of RF or Front IR and Rear IR Receiver Terminal. P.chK1K2K4E1E3 1FM 98.3MFM 98.3MFM 98.3MFM 98.3MFM 98.3M 2FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M

39、3FM 89.1MFM 89.1MFM 89.1MFM 89.1MFM 89.1M 4FM 108.0MFM 108.0MFM 108.0MFM 108.0MFM 108.0M 5FM 90.0MFM 90.0MFM 90.0MFM 90.0MFM 90.0M 6FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 7FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 8AM 1610KFM 87.5MAM 1610KFM 87.5MFM 87.5M 9AM 1700KAM 1610KAM 1700KAM 1602KAM 1602K 1

40、0AM 1000KAM 1000KAM 1000KAM 999KAM 999K 11AM 630KAM 630KAM 630KAM 630KAM 630K 12AM 1440KAM 1440KAM 1440KAM 1440KAM 1440K 13FM 106.0MFM 106.0MFM 106.0MFM 106.0MFM 106.0M 14AM 530KAM 530KAM 530KAM 531KAM 531K 15FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 16FM 98.0MFM 98.0MFM 98.0MFM 98.0MFM 98.0M 17FM 98

41、.5MFM 98.5MFM 98.5MFM 98.5MFM 98.5M 18FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 19AM 990KAM 990KAM 990KAM 990KAM 990K 20FM 97.4MFM 97.4MFM 97.4MFM 97.7MFM 97.7M 4. Tuner Preset Memory P.chK1K2K4E1E3 21AM 530KAM 530KAM 530KAM 531KAM 531K 22FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 23FM 87.5MFM 87.5MFM

42、87.5MFM 87.5MFM 87.5M 24FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 25FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 26FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 27FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 28FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 29FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 30FM 106.0MFM 106.0M

43、FM 106.0MFM 106.0MFM 106.0M 31FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 32FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 33FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 34FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 35FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 36FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 37FM 87.5MFM 8

44、7.5MFM 87.5MFM 87.5MFM 87.5M 38FM 87.5MFM 87.5MFM 87.5MFM 87.5MFM 87.5M 39FM 108.0MFM 108.0MFM 108.0MFM 108.0MFM 108.0M 40AM 1000KAM 1000KAM 1000KAM 945KAM 945K KRF-X7775D/X7775D-S/VR-5080/5090 7 CIRCUIT DESCRIPTION 5.Test Mode 5-1 Setting Method of the Test Mode Turn on the power supply while press

45、ing the INPUT SELECTOR DOWN key, to make a set in test mode. 5-2 Canceling the Test Mode The system is initialized and the test mode is cancelled if unplug the AC power cord from an AC power wall outlet. 5-3 Contents of the Test Mode The following operation is available when the FL is all lighting u

46、p mode only. KeyOperationDisplay SOUNDSet up the RF frequency to428MHz.RF BAND LISTEN MODESet up the RF frequency to422MHz.RF BAND THXIndicated the tuner destination in the FL.EX. TYPE E1 MEMORYChanged the dimmer off/1/2 cyclically.ALL FL Light ON 6. Main Microcomputer: uPD784217A516 (X13, IC3) 6-1

47、Main Microcomputer Periphery block diagram X13,IC6 X11(IC2/21) LCD Remote Cont. Selector IC Transmitter IC Protection NJU7312AM uPD17215GF X11(IC3/22/24) Selector IC X13,IC5 NJU7313AM SerialParallel FanX07,K6 X11,IC23 TC74HC164AF PWR Relay Selector ICX07,K1k4 NJU7311AM SP. Relay X11,IC6 Vol. IC97991,294,9588 TC9459N 7882 Mute Circuit X11,IC8X08,IC43 Vol. IC Sub u-Com TC9459N 73,74 uPD784224K507 X11,IC10 Vol. IC TC9459N 65,66TEXT UART X11,IC12X13, IC3X25,ED1 Vol. ICX25,J201 FL TC9459N Main Microcomputer36 X11,IC35X25,IC1 Vol. IC uPD784217A516 37FL Driver TC9459N uPD780204 X11,IC34Power/Input