Kenwood-VR3080-avr-sm 电路图 维修手册.pdf

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1、AUDIO VIDEO SURROUND RECEIVER KRF-V7772D VR-3080 SERVICE MANUAL 1999-3/B51-5511-00 (K/K) 1841 POWER ON/STANDBY CLIP INDICATOR DOLBY DIGITALDTS SPEAKERS A B MUTE VOLUME DOWNUP INPUT SELECTOR DISPLAY MODE PHONES S VIDEOV AV AUX L-AUDIO-R CD2/TAPE2 MONITOR PRE OUT FRONTSURROUNDCENTER SUBWOOFER AM GND F

2、M 75 ANTENNA AUDIO PHONOCD1 MD/TAPE1 REC OUT PLAY IN VIDEO1 REC OUT PLAY IN VIDEO2 PLAY IN VIDEO3 PLAY IN VIDEO4 PLAY IN CD2/TAPE2 MONITOR REC OUT PLAY IN FRONT SPEAKERS (6-16) SURROUND SPEAKERS (6-16) CENTER SPEAKER (6-16) SWITCHED TOTAL 100W MAX. S VIDEO VIDEO MONITOR OUT VIDEO1 REC OUT PLAY IN VI

3、DEO2 PLAY IN VIDEO3 PLAY IN VIDEO4 PLAY IN DIGITAL IN SL16 TEXT SYSTEM CONTROL VIDEO2 OPTICALOPTICAL COAXIALCOAXIAL VIDEO3 VIDEO4CD1 IR RECEIVER IN DC12V 15mA IR REPEATER OUT IR OUT LCD REMOTE SL16 XS8 Panel * (A60-) Panel escutcheon (B01-0533-21) Knob (K29-6855-03) Indicator (B12-0333-04) Knob (K29

4、-6855-03) Front glass (B10-2418-03) Indicator (B12-0326-04) Front glass (B10-2451-03) Cylindrical receptacle (E56-0012-05) Foot (J02-1405-03) Phone jack (E11-0271-05) Knob (K29-6858-12) Indicator (B12-0331-04) Knob (K29-6858-12) Knob (K29-6852-04) AC power cord* (E30-) Slide switch (S31-2132-05) Pho

5、no jack (E63-1028-05) Cylindrical receptacle (E56-0011-05) Phono jack (E63-0162-05) Phono jack (E63-0141-15)x2 Screw terminal board (E70-0096-05) *Refer to parts list on page37. Power cord bushing (J42-0083-05) Phono jack (E63-1084-05) Screw terminal board (E70-0095-05) Miniature phone jack (E11-036

6、0-05) Miniature Phone jack (E11-0291-05) Optical receiving module (W02-1181-05) Lock terminal board (E70-0052-05) AC outlet * (E03-) Miniature Phone jack (E11-0389-05) Phono jack (E63-0139-15) Miniature Phone jack (E11-0293-05) Phono jack (E63-1030-05) KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 2

7、RadioFans.CN 收音机爱 好者资料库 PowerPad (A70-1191-05) : RC-R0907 Battery cover(A09-1115-08) Remote ENTER VOLUME CONFIRM MUTE ON/STANDBY BatteriesAM Loop Antenna (T90-0833-05) AC (E03-0115-05) plug adapter FM (T90-0841-05) Antenna Use to adapt the plug onthe power cord to the shape of the wall outlet. (Pres

8、ent only for regions where use is necessary.) AM Antenna Base KRF-V7772D/VR-3080 2 CONTENTS / ACCESSORIES CONTENTS/ACCESSORIES/CAUTIONS.2 CONTROLS .3 DISASSEMBLY FOR REPAIR.4 BLOCK DIAGRAM .5 CIRCUIT DESCRIPTION.6 ADJUSTMENT.12 WIRING DIAGRAM.13 PC BOARD .14 SCHEMATIC DIAGRAM .19 EXPLODED VIEW .36 P

9、ARTS LIST.37 SPECIFICATIONS .49 Contents Accessories RESET Resetting ReceiverPowerPad If you want to reconfigure PowerPad, you can reset it. You do not need to do this unless you experience a problem. 1. Open the cover and remove the batteries, 2. Use a pen or other thin-tipped object to press the b

10、lue button in the center of the battery case: OPEN 3. Reinstall the batteries and follow the instruc- tions in this chapter to set up PowerPad again. If none of the above solutions work, reset the micro- processor: (For USA and Canada) 1. Turn the receiver off. 2. Unplug the receiver. 3. Plug it bac

11、k in while pressing and holding the Power button (you may need someone else to help you do this) 4. Continue to hold the Power button for more than 1 second. (For Other Countries) 1. Turn the receiver off. (The Power button is OFF position.) 2. Press ON/STANDBY button while pressing and holding the

12、Power button. 3. Continue to hold the Power button for more than 1 second. KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 3 RadioFans.CN 收音机爱 好者资料库 KRF-V7772D/VR-3080 3 CONTROLS POWER ON/STANDBY CLIP INDICATOR DOLBY DIGITALDTS SPEAKERS A B MUTE VOLUME DOWNUP INPUT SELECTOR DISPLAY MODE PHONES S VIDEOV

13、 AV AUX L-AUDIO-R CD2/TAPE2 MONITOR POWER ON/STANDBY ON OFF 9.Volume control knob 10. Display Mode button 11. Input selector button 12. AV AUX S VIDEO jack 13. AV AUX composite video jack 14. AV AUX audio jacks 15. CD2/Tape 2 Monitor indicator light 1.Power On/Standby button 2.Power indicator light

14、3.Display panel 4.Speaker selector buttons 5.Headphone jack 6.Mute button 7.IR indicator 8.IR transmitters Except for USA and Canada ENTER VOLUME CONFIRM MUTE ON/STANDBY 1.LCD display screen 2.Joystick 3.Enter button 4.Volume up button 5.Volume down button 6.Confirm button 7.Mute button 8.On/Standby

15、 button KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 6 RadioFans.CN 收音机爱 好者资料库 6 6 3 4 4 9 9 3 3 2 11 12 1 4 3 5x2 9x5 8x2 3x2 7 13 13 13 14 14 15 10 KRF-V7772D/VR-3080 4 DISASSEMBLY FOR REPAIR 1 4 5 6 x2 3x4 2 X09- x3 HOOK HOOK 1 4 6 6 6 6 x2 3 2x2 2x7 X08- X08- 1 1 4 4 4 6 6 5 B side Remove the es

16、cutcheon (operation panel) 1. Remove the knob(1), the nut (2), the 11 screws(3, 4, 5) and 2 hooks (6), then remove the front panel assy. 2. Remove the lead wire(7), the 2 screws(8 : except K,P type) and 7 screws(9) then remove the PCB. 3. Remove the under front glass(0, -), then remove the front pan

17、el(=) from the sub panel. 4. Remove the 2 under escutcheon sides() by screw driver and the 2 hooks(!) then remove the escutcheon(). Check the audio PCB(X09) 1. Remove the 9 screws (1,2,3). 2. Remove the 4 hooks(4,5) and remove the audio PCB(X09),then stand the set with left side downward. 3. Connect

18、 between the chassis of the set and the rear panel with an alligator clip lead wire (6). Check the B side of the DSP PCB (X08) 1. Remove the 11 screws(1,2). 2. Remove the X08(C/10)(J/10) (3), then remove the X08(A/10) (4). 3. Solder the pin 1(-17V), the pin 4 (+17V) and the pin 6(GND) between CN1 on

19、 the X08(A/10) and CN2 on the X08(I/10) with 3 lead wires (5). 4. Connect between the each GND of J1, J62, J61, J2 on the X08(A/10)and the rear panel with 4 alligator clip lead wires (6). Fig. 2 Fig. 1 Fig. 3 KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 7 VIDEO 1 AV AUX (FRONT) VIDEO 4 VIDEO 3 VIDEO

20、 2 VIDEO 1 COMP VIDEO PLAY COMP REC VIDEO Q611,612 BA7626F IC61 Q621,622 OUT Q623 (OSD) 1Vp-p/75 (VISUAL) VIDEO 1 VIDEO 2 VIDEO 3 VIDEO 4 (FRONT) AV AUX REC PLAY (S1-VIDEO) 1Vp-p/75 MONITOR OUT Q643 Q653, Q655 Q642 Q641 VIDEO 1 Q651,652 BA7626F IC65,66 CD1 VIDEO1 VIDEO2 VIDEO3 VIDEO4 MD/TAPE1 TAPE2

21、VIDEO1 VIDEO3 VIDEO2 VIDEO4 AVR IC8 +5.7V GND D17-20 FINAL TR. FINAL TR. GND PRE DRIVE GND PRE DRIVE D2 D1 Q100 RELAY DRIVER -17V GND +17V D3-6 Q2 AVR Q1 +5.0V GND Q16 AVR D13-16 Q7 AVR -35V FIL FIL STROKE SW Q8 RELAY DRIVER AC OUTLET D9 K6 T1 AVR IC5 CD1 L3,R3 L2,R2 L1,R1 L8,R8 L7,R7 L6,R6 L5,R5 L5

22、,R5 MONITOR L6,R6 MD/TAPE1 L4,R4 L3,R3 IC2 BUFFER REC OUT L1,R1L8,R8 L7,R7 IN L2,R2 LINE BUFFER IC3 TUNER 2.5mV/ PHONO IC6 IC5 IC4 IC1 EQ (ANALOG) INPUT ATT IC1 BUFFER DAC DIR IC3 21kHz LPF 21kHz LPF 21kHz LPF 21kHz LPF IC11 IC21 IC31(1/2) IC31(2/2) SUB CENTER LS,RS, FL,FR CONFIG-2 IC12,13 FILLTER T

23、ONE OFF L7,R7 L6,R6 L5,R5 L2,R2 TONE IC41 IC42 L1,R1 L8,R8 L3,R3 VOLUME VOLUME VOLUME VOLUME IC16 IC26 IC36(1/2) IC36(2/2) Q352 Q251,252 -20dB Q351 Q151,152 ATT -20dB ATT -20dB ATT -20dB ATT IC37 (2/2) (1/2) IC27 IC17 AMP Q15 Q13,14 Q11,12 MUTE MUTE MUTE A-MUTE MUTE Q253-256 Q353,355 MUTE Q354,356 M

24、UTE MUTE K5 K4 K2 POWER AMPLIFIER POWER POWER K3 RELAY A RELAY CS RELAY B A-MUTE S-MUTE SW-MUTE FRONT SW L,R FRONT B C LS,RS PHONES L,R FRONT A SPEAKERS PRE OUT 1.0V/1K u-COM IC71 CONTROL REMOTE A91 PROTECTION S1 DETECTOR V MUTE SP.RELAY SW MUTE S MUTE A MUTE 200mV/47K 200mV/2.2K IN OUT OTHER IC15 A

25、MPLIFIER AMPLIFIER DIGITAL PHONES 1.3Vrms/32 S1 CD2/TAPE2 PLAY IN AV AUX IN (FRONT) REC OUT COAXIAL IN OPTICAL IN (2/2) IC32 L,R +5.7V IC62 AVR 4.7K PHONO Q153-156 1.1Vrms/32 A2 A1 L4,R4 MONITOR Q3,4Q1,2 654 IC37 C LS,RS A/C CONVERTER CS4226 DSP SRAM IC51 IC52 X51 IC56,57 -6dB ATT IC32 (1/2) L4,R4 T

26、UNER8 AUDIO SEL.3 DPS10 DIR DAC,ADC9 TONE.VOL.3 20dB ATT 3 6 (J TYPE) OUT IR REPEATER J85 IN IR RECIEVER J84 OUT IR RECIEVER J83 IR LED REMOTE OUT D571-574 SYSTEM J81 SYSTEM CONTROL J82 TEXT SL16 FL ED1 LEDx7 FL MI-COM IC91 38kHz FILTER 856,857 Q851,852, 455kHz FILTER Q853-855 CONTROL IC72 REMOTE MI

27、-COM X8 RX BUSY TX DATA, D30 D10 AVR IC54 +3.3V AVR J K,Y,M,X 20.0V/4 24.5V/6K,Y,M,X J 5ch SP. OUTPUT DETECTOR S1 IC67 J1 J2 -20dB ATT K1 V-MUTE Y C C Y Y C C Y C Y V-MUTE Y C C Y + + + SE-RLY + + + POWER-RLY to u-COM to POWER SELECTOR to SRAM CODEC VOLUME -3dB ATT -6dB ATT -144 R141 ST RST CK DI DO

28、 51 to u-COM FL TONE TUNER PRE AMP to DSP to to VIDEO SELECTOR u-COM EACH INPUT C-TERMMNAL VR-3080 (X09)(X08) (X09) (X09) KRF-V7772D (X08) (X05) (X08) (X08) (J TYPE) (X08) (SIGNAL STAGE) (u-COM STAGE) KRF-V7772D/VR-3080 5 BLOCK DIAGRAM KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 10 KRF-V7772D/VR-30

29、80 6 CIRCUIT DESCRIPTION (0 : Pull down, 1 : Pull up) TYPEBAND Reception frequency Channel IF PLL standard Tuner sw space frequencyTSW3TSW2TSW1TSW0 K1 FM87.5MHz108.0MHz100kHz+10.7MHz25kHz 0000 1700 AM530kHz1700kHz10kHz+450kHz10kHz K2 FM87.5MHz108.0MHz100kHz+10.7MHz25kHz 0011 1610 AM530kHz1610kHz10kH

30、z+450kHz10kHz K4 FM87.5MHz108.0MHz100kHz+10.7MHz25kHz 1010 1700 RBDS AM530kHz1700kHz10kHz+450kHz10kHz E1 FM87.5MHz108.0MHz50kHz+10.7MHz25kHz 0001 AM531kHz1602kHz9kHz+450kHz9kHz E3 FM87.5MHz108.0MHz50kHz+10.7MHz25kHz RDSAM531kHz1602kHz9kHz+450kHz9kHz 0101 FM L65.0MHz74.0MHz10kHz+10.7MHz5kHz Q1 FM H87

31、.5MHz108.0MHz50kHz+10.7MHz5kHz 1011 RDS AM531kHz1602kHz9kHz+450kHz9kHz M K2/E1 is switched with only the setting of DSW1 (X11 : S601). 00X1 (DSW1 = 0 : K2 type, 1 : E1 type) 10111213 1. The back up item and initialization condition 1-1 Back up POWER ON/OFF: OFF VOLUME LEVEL: -66dB AUDIO INPUT SELECT

32、OR: TUNER VIDEO INPUT SELECTOR: VIDEO1 SPEAKER A: ON SPEAKER B: OFF CD2/TAPE2 MONITOR: TAPE2 OFF TONE: OFF LOUDNESS: OFF DISPLAY MODE: DEVICE+DGTL/ANLG DIMMER: DIMMER 1 (LIGHTEST) SURROUND MODE: STEREO ROOM SIZE: Med WALL TYPE: Med EFFECT LEVEL: 3 MIDNIGHT MODE: OFF DISTANCE: FL/FR : 10ft : C : 10ft

33、 : RS/LS : 5ft : SW : 10ft FRONT SP.: LARGE CENTER SP.: NORMAL SURROUND SP.: NORMAL/WIRED SUB WOOFER: ON SW Re-Mix: OFF INPUT LEVEL: 0dB CH. LEVEL: 0dB TONE BASS: 0dB TONE TREBLE: 0dB TUNING MODE: AUTO PRESET MEMORY: TEST MEMORY FRE- QUENCY (Same value with KR-V999D/1090VR) LAST BAND: FM FM LAST FRE

34、QUENCY: 87.5MHz AM LAST FREQUENCY: 531kHz (CH. SP 9kHz) : 530kHz (CH. SP 10kHz) LAST P. ch: - -ch 1-2 The initial setting While pressing POWER key, plug the AC power cord into an AC outlet (K,P type) or turn on the AC POWER switch. 3. TEST MODE setting method While pressing INPUT SELECTOR key, plug

35、the AC power cord into an AC outlet (K, P type) or turn on the AC POWER switch. When a set is set up in test mode condition a set becomes the following condition. Automatic POWER ON. All indicator tube (FL) and CLIP INDICATOR LED are lighted. The other LED are flashed. A backup at the thing except O

36、N/OFF of POWER is initialized. cancel method The power supply is turned off. 2. Condition by the destination or model KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 11 KRF-V7772D/VR-3080 7 CIRCUIT DESCRIPTION (X08)IC16(X08)IC15 (X08)IC26(X09)IC5 (X08)IC36(X09)IC4 (X08)IC42 (X08)S91-96(X08)S97(X08)IC71

37、(X08)IC3 (X08)IC91 (X08)IC51 (X09)ED1 (X09)K2-5 (X05) (X08)J81 (X08)IC72 (X08) (X08)A91 (X08)J84 MAIN UCOM PD784214GF-527 TACT KEY ROTARY- ENCODER FLDRIVER uPD780204 DESTYINA FL TI ON SW LCD REMOTE TRANSMIT IC VOLUME IC TC9412 VOLUME IC TC9412 VOLUME IC TC9412 SELECTOR IC TC9162 SELECTOR IC NJU7312A

38、L SELECTOR IC NJU7313AL TONE CONTROL IC TC9184 CODEC CS4226 DSP YSS912 SP.RELAY MUTETUNER UNIT IR RECEIVER DESTINATION IRREMOTE IR RECEIVER SYSTEM CONTROL uPD17215 4. Main microprocessor: uPD784214GF-527(X08: IC71) 4-1 Microprocessor periphery block diagram Push keyINPUT SELECTORSP ASP BMUTEDISPLAY

39、MODE TUNERSTEREO P. CALL UP P. CALL DOWN ATT OFF ON FM AUTO/STEREO MANUAL/MONO (DOLBY DIGITAL LED : OFF ON) (Press the key for 2 secs) CD1STEREO TONE (TUNED) +10 (light on) OFF (light off) ANALOG DIGITAL MD/TAPE1STEREO IR RECEIVER A(ON) OFF VIDEO1PRO LOGIC VIDEO23 STEREO DISPLAYVIDEO3STEREO VIDEO4DS

40、P ARENA JAZZ CLUB THEATER STADIUM CATHEDRAL AV AUXSTEREO TAPE2 OFF ON PHONOSTEREO INPUT LEVEL 0dB -3dB -6dB KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 14 KRF-V7772D/VR-3080 8 CIRCUIT DESCRIPTION Pin No.NameI/O ConnectDescription 1-8REM_D0-D7OP.D.LCD REMOTE DATA OUT-7 9VDD-+5V 10-13TSW3-0I-TUNER DE

41、STINATION SWITCH3-0 14ENC_AI-VOLUME ENCODER INPUT A 15ENC_BI-VOLUME ENCODER INPUT B 16-IP.D.Not used 17T_MUTEOP.U.TUNER MUTE 18PLL_CLKOP.D.PLL(LC72131) CLOCK 19PLL_DATAOP.D.PLL(LC72131) DATA 20PLL_DOIP.D.PLL(LC72131) DO 21PLL_CEOP.D.PLL(LC72131) CE 22TEST/VPP-GND 23PLL_SDIP.U.PLL(LC72131) SD 24PLL_S

42、TEREOIP.U.PLL(LC72131) STEREO 25-28WIDE_V1-4IP.U.VIDEO1-4 S1 WIDE DETECTOR 29WIDE_AUXIP.U.AV AUX S1 WIDE DETECTOR 30WIDE_OUTOP.D.MONITOR OUT S1 WIDE INPUT 31VIDEO_MUTEOP.D.VIDEO MUTE (mute on:H) 32TONE_STOP.D.TONE(TC9184) STROBE 33VOL_STOP.D.VOLUME(TC9412) STROBE 34VOL_DATAOP.D.VOLUME(TC9412), TONE(

43、TC9184) DATA 35VOL_CLKOP.D.VOLUME(TC9412),TONE(TC9184)CLOCK 36CEIP.D.CHIP ENABLE 37VDD -+5V 38X2-12.5MHz 39X1I-12.5MHz 40VSS-GND 41,42XT2,1-Not used 43RESETI-RESET 44REM0IP.D.REMOTE CONTROLLER SIGNAL INPUT 0 (FRONT PANEL) 45REM1IP.D.REMOTE CONTROLLER SIGNAL INPUT 1 (IR RECEIVER) 46CODEC_CSIP.D.CODEC

44、(CS4226) CHIP SELECT 47CODEC_ERRIP.D.CODEC(CS4226) ERROR DETECT 48CODEC_AC3IP.D.CODEC(CS4226) AC-3(DOLBY DIGITAL, DTS, MPEG DETECT 49DSP_DTSIP.D.DSP(YSS912) DTS DETECT 50DSP_AC3IP.D.DSP(YSS912) AC-3 DETECT 51AVDD-+5V 52AVREF0-GND 53DATA_DETIP.D.DIR DATA DETECT 54CODEC_FREQ1IP.D.CODEC(CS4226) CHANNEL

45、 STATUS FREQ. BIT 1 55CODEC_FREQ0IP.D.CODEC(CS4226) CHANNEL STATUS FREQ. BIT 0 56,57Not usedI-GND 58CODEC_AUDIOIP.D.CODEC(CS4226) non AUDIO DETECT 59DSP_NPCMIP.D.DSP(YSS912) non PCM DETECT 60DSP_SENCIP.D.DSP(YSS912) SURROUND ENCODE DETECT 61AVSS-GND 62DSP_CS_AOP.D.DSP(YSS912) CHIP SELECT 63DSP_CS_BO

46、P.D.DSP(YSS912) SUB DSP CHIP SELECT 64AVREF1-+5V 65DSP_SIIP.D.DSP(YSS912), CODEC(CS4226)DATA IN 4-2 Pin description KRF-V7772D(K) COVER1,1( 99.10.29 10:11 AM yW 15 KRF-V7772D/VR-3080 9 CIRCUIT DESCRIPTION Pin No.NameI/O ConnectDescription 66DSP_SOOP.D.DSP(YSS912), CODEC(CS4226)DATA OUT 67DSP_SCKOP.D

47、.DSP(YSS912), CODEC(CS4226)CLOCK 68TEXT_RXIP.D.CD TEXT UART COMMUNICATION DATA IN 69TEXT_TXOP.D.CD TEXT UART COMMUNICATION DATA OUT 70DSP_ICOP.D.DSP(YSS912) INITIAL CLEAR 71FL_RSTOP.D.FL DRIVER(uPD780204) RESET 72FL_STBOP.D.FL DRIVER(uPD780204) STROBE 73FL_DIIP.D.FL DRIVER(uPD780204) DATA IN 74FL_DOOP.D.FL DRIVER(uPD780204) DATA OUT 75FL_CLKOP.D.FL DRIVER(uPD780204) CLOCK 768/16I/O-SERIAL XS8/SL16 CHANGEOVER(SL16:L) 77S_DATAI/OP.D.SERIAL DATA 78S_BUSYIP.D.SERIAL BUSY 79