JVC-RX8020RBK-avr-sm维修电路原理图.pdf

SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER No.21161 Oct. 2002 COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD. RX-8020VBK RX-8020VBK Contents Safety precautions -1-2 Disassembly method -1-3 Adjustment method -1-9 Self-diagnose function-1-10 Description of major ICs -1-1231 Area suffix UJ - U.S.Military MENU 231 564 897/P 0 +10 10 BOOSTFRONTL MENU ENTER FRONTR BASS DIMMER TESTCENTERSUBWFR DIGITAL EQSBACKLSBACKR SURRLSURRR MUTING CH/LEVELTV VOL PLAY STOP /REW DOWN TUNING UP FF/ EXIT VOLUME CATV/DBS CONTROL TV/VIDEO REC PAUSE SLEEP PAUSE SET RETURNFM MODE100+ CONTROL RM-SRX8020J REMOTE CONTROL CATV/DBSVCR1TVAUDIO DSP OFF DVD MULTIDVD USB CD CDR TAPE/MD TV/DBSVIDEOPHONO FM/AM VCR1VCR 2 SURROUNDSURR/DSPANALOG/DIGITAL A/V CONTROL RECEIVER INPUT DIRECT ANALOG TEXT DISPLAY SOUND CONTROL DOWNUP EFFECTSETTING DIGITAL EQ TV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTI INPUT ANALOG/DIGITALDSP S-VIDEOVIDEO VIDEO LAUDIOR SURROUND SUBWOOFER OUT ON/OFF SPEAKERS ON/OFF FM/AM TUNINGFM/AM PRESETFM MODE MEMORY PHONES 1 STANDBY USB AUDIO SURROUND/DSP OFF FM/AMUSB AUDIOTAPE/MDCDRCDPHONO LEVEL ADJUST RX-8020VAUDIO/VIDEO CONTROL RECEIVER ANALOG DIRECT BASS BOOST MASTER VOLUME 2 SOURCE NAME SOUCE NAME STANDBY/ON INPUT ATT PUSH OPEN RadioFans.CN 收音机爱 好者资料库 1-9 RX-8020VBK Adjustment method 1.Set the volume control to minimum during this adjustment.(No signal & No load) 2.Set the surround mode OFF. 2.Turn VR787 and VR788 fully counterclockwise to warm up before adjustment. If the heat sink is already warm from previous use the correct adjustment can not be made. 3.For L-ch,connect a DC voltmeter between B2204 and B2205 (Lch) And,connect it between B2213 and B2214(Rch). 4.30 minutes later after power on, adjust VR787 for L-ch, or VR788 for R-ch so that the DC voltmeter value has 1mV10mV. 1.Tuner range FM 87.5MHz108.0MHz AM(MW) 531 kHz to 1 602 kHz (at 9 kHz intervals) 530 kHz to 1 600 kHz (at 10 kHz intervals) Tuner section Power amplifier section B2213, B2214 VR787 (Lch) VR788 (Rch) Heat sink Rch amp. board Adjustment of idling current Measurement location B2204-B2205(Lch) , B2213-2214(Rch) Adjustment part VR787(Lch) , VR788(Rch) Attention This adjustment does not obtain a correct adjustment value immediately after the amplifier is used (state that an internal temperature has risen). Please adjust, after you turn off amplifier and internal temperature falls. * It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable resistance (VR787,VR788) in the direction of counterclockwise. B2204, B2205 Lch amp. board RadioFans.CN 收音机爱 好者资料库 RX-8020VBK 1-10 Self-diagnose function 1. Detection of abnormal power supply and voltage When the power is turned ON, if an abnormality is detected during the signal input at the A/D port (IC901, pin 2-5, 7) for one second continuously, the status will become STANDBY mode immediately. When the power is turned ON again, detection of abnormal power supply and voltage will not be carried out during the first 4 seconds. Given below is a list of threshold values at the detection of abnormalities. 2. Initial setting on ship To gain the initial setting on ship, put the power plug in the socket while pressing DOWN key and UP key together simultaneously, then turn the power ON. 3. Test mode To enter the test mode, put the power plug in the socket while pressing EFFECT key and UP key together simultaneously, then turn the power ON. Workings of test mode: All FLs are turned ON for 3 seconds. (the FLs, which are divided in two groups, are turned ON alternatively) A Faster volume UP/DOWN operation can be achieved with the remote controller. When the power is turned OFF, the test mode will be released. The FL display returns to normal after the three seconds. Then the STANDBY LED is turned ON (flashing ON and OFF for each one second) to show the present status being a test mode. Pin 2 Micro-computer+5V Pin 3 Digital+5V Pin 4 Analog+5V Pin 5 +12V Pin 7 Tuner+9V At abnormal state (Low voltage) Analog value 0 - 2.2V Analog value 0 - 2.2V Analog value 0 - 2.2V Analog value 0 - 2.2V Analog value 0 - 2.2V At normal state Analog value 2.2 - 2.8V Analog value 2.2 - 2.8V Analog value 2.2 - 2.8V Analog value 2.2 - 2.8V Analog value 2.2 - 2.8V At abnormal state (High voltage) Analog value 2.8 - 5.0V Analog value 2.8 - 5.0V Analog value 2.8 - 5.0V Analog value 2.8 - 5.0V Analog value 2.8 - 5.0V 1-11 RX-8020VBK Information on VERSION of system microcomputer (IC901) Example : 2002/2/20 9th ROM Display the local version (IC581) Example : Ver_1.00 Display the local creation date Example : 2002/2/10 Display the DSP version (IC511) Example : DSP Rev41 Display the input sources However, since it is the source of DIR processing, actual source may be contradicted. Example : ANALOG08 Display the input Fs Example : Fs48kHz Display the input format Example : PCM Display the input channel Example : 2/0.0 S 0 0 0 1 2 0 0 2 0 2 2 0 9 4. Self-diagnose V 0 D A D D D D D D U F F F F N U P A A D D D A M N U 1 2 2 2 3 2 3 2 3 N D1 D2 D3 D4 D5 D6 D7 e 2 S N I I I I I I N s s s s G N C C C T T T A P G N / / / / / / / / / G r / P A G G G G G G L L M 3 3 S S S C E L 0 0 0 0 0 1 1 2 2 0 R L I I I I I I O 3 4 4 9 D O - - - G D O . . . . . . . . . D 1 2 e O T T T T T T C 2 4 8 6 A C E E E A C 0 0 0 0 0 0 0 0 0 A . / v G A A A A A A K k k k k T K X S S T K T 0 1 4 x L L L L L L H H H H A A L D A 0 0 1 x 1 2 3 4 5 z z z z M D t M To enter the self-diagnose mode, put the power plug in the socket while pressing SETTING key and UP key together simultaneously, then turn the power ON. While the working status is being displayed, the each item can be switched with the UP/DOWN key operation. When the power is turned OFF, the self-diagnose mode will be released. During the self-diagnose mode, the STANDBY LED is turned ON (flashing ON for one second then OFF for three seconds). FL transient display will be carried out as follows. When the transient display is not carried out, normal display/workings are carried out. ABCDEFG 1 2 3 4 5 2-1 RX-8020VBK LVA10221-5 LVA10220-4 LVA10220-2 LVA10220-1 CN711 CN701 CN712 CN702CN721 CN722 CN703 CN713 CN723 CN715 CN705 CN716 CN706 CN813 CN823 CN814 CN881 FW881 Q1751 Q1752 RY831 RY832 RY851 RY852 Q761 Q763 Lch Q762 Q764 Rch C Q1851 Q1853 Q1852 Q1854 RLch RRch SPK1 SPK2 CENTER REAR L REAR R CN824 L R L R L L R R RL RL RR RR Cch CN101CN301CN303CN601CN201CN241 CN361CN501CN205CN243 CN311CN351 CN313CN371CN416 CN587CN581 CN200CN204CN206 CN240 CN242 CN731CN732 CN400 CPU IC901 IC380 SW IC383 IC382 IC381 IC384 IC389IC388 IC390 RL/RR SBL/SBR SBL/SBR SBL/SBR RL/RR RL/RR C/W L/R IC396 COMPU LINK TEXT LINK TEXT TEXT TEXT MONI C C L/R L/R RL/RR C L/R AUDIO AUDIO AUDIO AUDIO Vido5, 6 Vido5, 6 Vido5, 6 V SIG V SIG V SIG DVD REAR DVD REAR DVD STB Monitor out DATA DATA DSP CLK DATA Block diagrams LVA10336-2 LVA10338-1 LVA10009 LVA10337 LVA10336-4 LVA10336-5 LVA10336-1 CN381 LVA10221-1 LVA10221-2 S video (Refer to the following page.) (Refer to the following page.) (Refer to the following page.) (Refer to the following page.) Video DSP Video audio IC399 7.1ch Preout IC397 IC398 IC386 DVD CENTER DVD SUB WOOFER DVD CENTER DVD SUB WOOFER LVA10220-3 LVA10338-7 CN393 CN392 LVA10336-6 SYSTEM CONTROLLER IC 400 FL DISPLAY DI400 KEY CN410 VIDEO Y/C AUDIO FRONT AUDIO FRONT VIDEO FRONT Y/C USBUSB DAC IC 410 LVA10218-1 CN406 FM AM TUNER TUNER TUNER DATA TUNER RF 101 MW RF & OSC T111 AM/FM DET IC102 PLL IC121 CN111 CN244 CD L/R TAPE P.B TAPE REC CDR P.B CDR REC DVD REAR IC 303 MAIN_STK, CLK,DAT MAIN_STK, CLK,DAT SOURCE SELECTOR IC 302 PHONO L/R EQ IC 301 IC 304 LVA10336-3 ABCDEFG 1 2 3 4 5 2-3 RX-8020VBK SHEET 1/10 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. Power supply section SHEET NUMBER 1/10 2/10 3/10 4/10 5/10 6/10 7/10 8/10 9/10 10/10 POWER SUPPLY MAIN AUDIO AUDIO SIGNAL / VIDEO SIGNAL INPUT DVD AUDIO AMP (FRONT CHANNEL) AUDIO AMP (CENTER, REAR CHANNEL) DSP SYSTEM CONTROL TUNER CIRCUIT DESCRIPTION Sheet 3/10 Relay board Power trans1 board Power trans2 board Power/fuse board Power supply board Sheet 9/10 Sheet 2/10 Standard schematic diagrams F61 Q71 D72 VS1 F62 CN402 CN71 Q53 R53 D75 R73D74C72 D73 D71 C70 TH71 R74 FW51 C62C61 C68 C69 C65C66 C63 D62 D63 D61 Q51 Q52D53 C52 D55 D57 C54 RY1 PW19 PW40 PW29 PW28 C51 F2 PW30 PW17PW27 PW20 PW23 PW25 PW24 PW18 PW22 PW12 PW14 PW15 PW21 PW11 PW16 PW13 PW10 F1 TA1 TA2 PW26 F4 EP51 CN55 R61 CN56 CN811 131 132 113 112 111 123 122 121 134 133 CN72 CN82 R72 R52 Q74 C74 C73 C71 D64 D52 C53 D51 D54 C55 D56 R51 R54 C1 T2 KTA1046/Y/ 11ES2-T4 QSW0812-001 KRC105M 6.8 MTZ8.2JC 22kMTZ33JC22/50 11ES2-T4 11ES2-T4 220/50 QAD0095-4R7 100k 0.1MY0.1MY 0.047MY 0.047MY 3300/351000/35 0.1MY 11ES2-T4 10E2-FD 10E2-FD 2SD2395/EF/ KTD863/Y/ 11ES2-T4 470/63 MTZ12JC 1SS133 470/16 QSK0098-001 0.0047/100 8.2 3.3k 3.3k KTC3200/GL/ 1/50 22/50 100/63 11ES2-T4 11ES2-T4 0.0047 11ES2-T4 11ES2-T4 0.0047 MTZ6.2JB 15k 820 0.0047 QQT0281-004 HABCDEFG 1 2 3 4 5 2-4 RX-8020VBKRX-8020VBK SHEET 2/10 Sheet 3/10 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. FRONT Signal CENTER Signal REAR Signal Main & Speaker terminal section Sheet 7/10Sheet 7/10Sheet 7/10Sheet 6/10Sheet 6/10Sheet 5/10Sheet 5/10 Sheet 1/10 Main board Speaker board Headphone jack board Sheet 3/10 Q812 R816 CN701 CN702 R811 R814 D816 D811 Q811 CN823 C816 CN814 CN824 R823 CN721 CN723 R841 R842 R843 R844 R845 RY871 CN881 D843 CN831 R831 R832 D831RY831 ST831 S831 R851 R852 ST851 CN813 R833 C835 C885 C888 C887 C881 C893 C884 C891 C892 C883 D844 D842 J91 R91 R92 C91 FW881 C92 FW931 CN703 CN705 CN706 Q831 Q832 Q830 D841 C850 R864 R865 R866 Q833 Q836 Q835 Q834 D846 D845 R867 C834 C846 C847 C839 L844 L845 L843 B124 B125 B123 C801 D801 D803 D802 D804 C802 R862 R859 R812 R813 C811 R856 R857 R815 R860 R863 Q824 Q823 Q825 C823 C824 R825 R826 R824 D825 D871 R871 D832 RY832 RY851 RY852 D851 D852 R837R838 R834 C843C844 C838 C837 C845 C842C841 C836 C848 C886 C890 C889 R885 R888 R887 C851 C853 C852 R855 R861 R858 C833 C840 CN801 C805 C807C808 R801R802 KTC3200/GL/ 3.3k 10k MTZ18JC 2SD2395/EF/ 47/25 10k 100k 82k 100k 100k 82k QSK0109-001 1SS133 12 12 1SS133 12 12 10 0.022 0.047 0.047 0.047 330p 220p 330p 220p 220p 330p 1SS133 1SS133 470 470 470p470p 4.7/504.7/504.7/50 KRC109M KRC109M KRC109M MTZ5.1JC 4.7/50 4.7k 4.7k 4.7k KRC109M KRC109M KRC109M KRC109M 1SS133 1SS133 10k 0.022 220p 220p 0.022 0.45 0.45 0.45 30DF2-FC 30DF2-FC 30DF2-FC 30DF2-FC 22k 22k 3.3k 47k 0.0047 22k 6.8k 12 6.8k 6.8k KTC3200/GL/ KTC3199/GL/ KTA1268/GL/ 47/16 10/25 10k 100k 130k 1SS133 1SS133 12 1SS133 1SS133 1SS133 1010 10 220p220p 0.0220.022 220p 220p220p 0.022 220p 220p 220p 220p 10 10 10 3.9k 4.7k 4.7k 0.022 0.022 6800/716800/71 100k100k ABCDEFG 1 2 3 4 5 2-5 RX-8020VBK TUNER Signal SHEET 3/10 Parts are safety assurance parts. When replacing those parts make sure to use the specified one. Audio section Sheet 4/10 Audio board Sheet 4/10 Sheet 4/10Sheet 4/10Sheet 8/10Sheet 5/10 To CN111 Sheet 10/10 To CN112 Sheet 10/10 Sheet 2/10 Sheet 2/10 Sheet 9/10 Sheet 1/10 D971 Q971 R924 C971 C972 R971 R973 Q951 C994 Q961 C951 C952 R951 R953 R954 C961 C962 R963 R961 Q931 R955 D931 R933 C932 C931 Q921 R956 D921 R923 C922 C921 Q941 D941 R943 C942 C941 D951D961 R931 R932 R921 R922 R941 R942 IC901 X901 CN933 D955 R916 CN400 CN101 CN241 CN102 R980 R981 R982 R983 R984 R985 R986 R987 C904 D993 R911 FW831 CN601 C975 R993 Q908 FL992 FL991 R914 C991 C992 C993 CN931 R995 R997 R978 R976 R936 R935 R934 R937 R938 R939 R944 R945 R946 D956 CN303 CN81 CN932 CN301 CN201 R915 R918 R999 EP901 C985 R913 R965 D975 C902 C901 C903 R903 D902 D901 D900 Q901 C905 IC903 R910 R966 D904 R908 R975 Q903 Q904 Q906 Q907 R991R992 R994 R996 R998 R979 R977 R925 R926 R927 R928 R929 D976 D977 D978 D979 R969 R968 R967 R940 R930 C981 C982 C983 C984 MTZ10JC 2SD2395/EF/ 10k 100/25 0.0047 12 3.3k 2SD2395/EF/ 270P KTA1046/Y/ 100/25 0.0047 12 2.2k 220 100/25 0.0047 2.2k 12 2SD2395/EF/ 220 MTZ6.2JC 2.7k 0.0047 470/16 2SD2395/EF/ 220 MTZ5.6JC 2.7k 0.0047 100/25 2SD2395/EF/ MTZ5.6JC 2.7k 0.0047 100/25 MTZ13JCMTZ13JC 33 33 12 12 12 12 MN101C49GJY 8MHz 1SS133-T2 3.9 220 220 220 220 220 220 220 220 2.2/50 1SS133-T2 4.7k 470/6.3 6.2k KRC105M QQR0590-001 QQR0590-001 3.9 0.0056 0.0056 100p 13k 15k 4.7k 4.7k 220 220 220 220 220 220 220 220 220 1SS133-T2 1SS133-T2 3.9 18 10k 0.01 3.9 10k 1.5 100/6.3 2200/6.3 330 11ES2-T4 11ES2-T4 11ES2-T4 KRC107M 0.022 IC-PST9139 22k 10k 1SS133-T2 22k 22 KRC105M KRC105M KRC105M KRC105M 4.7k 4.7k 5.1k 3.3k 5.6k 4.7k 4.7k 220 220 220 220 220 10k 10k 10k 3.3 10k 330p 330p 330p 330p +15V -15V MAIN_STB MAIN_CLK MAIN_DAT SrBL_MUTE F1_RELAY F2_RELAY MAIN_STB MAIN_CLK MAIN_DAT FR_RELAY C_RELAY VOL_STB SUR_RELAY SrBR_MUTE VIDEO5 VOL_CLK VOL_DAT VOL_STB VOL_CLK VOL_DAT SW_MUTE SUR_RELAY SrBL_MUTE SrBR_MUTE S_MUTE OSD_DAT OSD_CS VIDEO1 VIDEO2 VIDEO3 VIDEO4 OSD_CLK TUNER_MUTE TUNED STEREO RDS_ST M_CLK M_STATUS M_COMMAND M_STATUS M_CLK M_RESET M_CS M_CS M_COMMAND M_BUSY M_RESET STANDBY_LED VCR_S/C C_RELAY F2_RELAY F1_RELAY HP_RELAY F1_RELAY F2_RELAY TUNER_CK C_RELAY SUR_RELAY TUNER_CE 4/8_IN TUNER_DATA RDS_DATA RDS_CLK DSPCLK VIDEO6 S_MUTE SW_MUTE VIDEO1 VIDEO2 VIDEO3 VIDEO4 OSD_CS OSD_DAT OSD_CLK DVD_S/C DBS_S/C VCR1_S/C VCR2_S/C HP_RELAY VIDEO_S/C DBS_S/C VCR2_S/C VCR1_S/C DVD_S/C TUNER_MUTE TUNER_DATA TUNER_CK TUNER_CE RDS_DATA RDS_CLK TUNED STEREO RDS_ST M_BUSY STANDBY_LED PROTECT VIDEO5 4/8_OUT PROTECT 4/8_OUT DSPSTATUS DSPRESET DSPCOMMAND DSPSTATUS DSPCLK DSPREADY 4/8_IN VIDEO6 DSPCOMMAND DSPREADY DSPRESET HABCDEFG 1 2 3 4 5 2-6 RX-8020VBKRX-8020VBK SHEET 4/10 Audio / Video Audio / Video / S video signal input section VIDEO AUDIO Signal Sheet 3/10Sheet 9/10 Sheet 9/10 Sheet 3/10 Sheet 3/10 Sheet 3/10 Sheet 5/10 Video audio boardS video board Video board Audio input board Sheet 5/10 Sheet 9/10Sheet 5/10 Sheet 5/10 AUDIO SignalTUNER Signal PHONO Signal Parts are safety assurance parts. When replacing those parts make sure to use the specified one. CN200 C226 R271 CN242 CN204 R274 C270 C271 R266 R268 R267 R269 CN244 C253 C268 C269 R273 IC241 IC242 C246 C251 R244 R247 C242 C245 C247 C250 C252 C241 C244 C249 R254 R255 Q240 Q245 Q247 Q241 C275 C276 D241 C216 CN206 IC201 IC202 IC203 R200 C208 C209 Q200 R201 R209 R203 R211 R205 R207 R208 R202 R210 R204 R212 R206 Q201 C201 C202 C203 C204 C205 C206 C207 Q202 Q203 R216 C211 C212 C213 C214 C215 C219 C220 L200 R213 R225 C273 R272 C274 C277 C272 Q