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JVC RX-6020VBK Service Manual

Audio/video control receiver
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Download this manual See also: Instruction Manual
SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
FM/AM TUNING
STANDBY
PTY–PTY SEARCH–PTY
STANDBY/ON
D I G I T A L
S U R R O U N D
SURROUND ON/OFF
FM MODE
SURROUND MODE
PHONES
Contents
Safety precautions --------------------------------------------------------1-2
Importance administering
point on the safety-----------------------------------------1-3
Disassembly method -----------------------------------------------------1-4
Adjustment method -------------------------------------------------------1-9
Description of major ICs -------------------------------------------------1-10~24
COPYRIGHT
RX-6020VBK
RX-6020V AUDIO/VIDEO CONTROL RECEIVER
FM/AM PRESET
FM MODE
MEMORY
INPUT ANALOG
INPUT DIGITAL
DVD MULTI
DVD
INPUT ATT
SPEAKERS ON/OFF
CD
TAPE/CDR
SOURCE NAME
2002 VICTOR COMPANY OF JAPAN, LTD.
J ---------------------- U.S.A.
C ------------------- Canada
MASTER VOLUME
ADJUST
SETTING
VCR
TV SOUND
CONTROL
DOWN
UP
FM
AM
RX-6020VBK
Area suffix
No.21063
Feb. 2002

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Summary of Contents for JVC RX-6020VBK

  • Page 1 RX-6020VBK SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER RX-6020VBK Area suffix J ---------------------- U.S.A. C ------------------- Canada RX-6020V AUDIO/VIDEO CONTROL RECEIVER FM/AM TUNING FM/AM PRESET FM MODE STANDBY MASTER VOLUME MEMORY PTY–PTY SEARCH–PTY STANDBY/ON D I G I T A L S U R R O U N D...
  • Page 2 RX-6020VBK 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.
  • Page 3 RX-6020VBK Importance administering point on the safety LVA1029-C9 B110 PW104 TA201 B109 B108 B106 Primary part PW105 PW102 TA202 B105 B107 B104 FC211 PW103 B103 6.3A-125V F 201 B102 PW101 B101 FC212 B192 B191 FC232 FC222 B159 Secondary parts F 203...
  • Page 4 RX-6020VBK Disassembly method Top cover Removing the top cover (See Fig.1) Remove the four screws A attaching the top cover on both sides of the body. Remove the three screws B on the back of the body. Remove the top cover from behind in the direction of the arrow while pulling both sides outward.
  • Page 5 RX-6020VBK Removing the digital signal board / audio input board / DVD board / video board and tuner board on the audio board (See Fig.5 to 8) Prior to performing the following procedure, remove Audio board the top cover and the rear panel.
  • Page 6 RX-6020VBK Removing the audio board (See Fig.9) Relay board Prior to performing the following procedure, remove the top cover and the rear panel. power supply board Disconnect the card wire from connector CN402 on CN473 CN291 the audio board. Disconnect the relay board from the audio board and Power the power supply board.
  • Page 7 RX-6020VBK Removing the power transformer (See Fig.13) Power supply Prior to performing the following procedures, remove board the top cover. Solder points Cut off the tie band fixing the harness. FW201 Tie band Unsolder the two harnesses connected to the power...
  • Page 8 RX-6020VBK Removing the system control board / Operation switch panel Front panel assembly power switch board (See Fig.16 to 18) Prior to performing the following procedure, remove the top cover and the front panel assembly. Pull out the volume knob on the front side of the front panel and remove the nut attaching the system control board.
  • Page 9 RX-6020VBK Adjustment method Tuner section 1.Tuner range 87.5MHz~108.0MHz AM(MW) 530kHz~1710kHz Power amplifier section Adjustment of idling current Measurement location TP301(Lch) , TP302(Rch) Adjustment part VR301(Lch) , VR302(Rch) Attention This adjustment does not obtain a correct adjustment value immediately after the amplifier is used (state that an internal temperature has risen).
  • Page 10 RX-6020VBK Description of major ICs AK4527BVQP (IC601) : A/D,D/A converter 1.Pin layout Top View 2. Pin function (1/2) Symbol Function SDOS SDTO Source Select Pin (Note 1) "L" : Internal ADC output, "H" : DAUX input OSKS Control Mode Select Pin "L"...
  • Page 11 RX-6020VBK Pin function (2/2) AK4527 Symbol Function Connect to GND ICKS No internal bonding. Analog Input Format Select Pin, Digital Power Supply ADIF "H" : Full-differential input, "L" : Single-ended input Chip Address 1 Pin, Connect to GND CAD1 Chip Address 0 Pin, Connect to GND...
  • Page 12 RX-6020VBK M62446FP (IC428) : 6ch master volume 1.Block Diagram OUT4 DVDD OUT- OUT3 OUT2 PORT DATA volume OUT1 LATCH AVDD DGND volume SWIN AGND GNDS SWout SRin SRout volume SLin SLout GNDC Cout volume Rout GNDR Lout AVSS volume GNDL...
  • Page 13 RX-6020VBK 2.Pin Function M62446FP Pin No. Symbol Function OUT4 BASS BOOST control terminal SURROUND control terminal OUT3 VIDEO 2 control terminal OUT2 VIDEO 1 control terminal OUT1 Analog positive power supply terminal AVDD SUB Woofer volume signal input terminal SW IN Analog ground terminal A.GND...
  • Page 14 RX-6020VBK MN101C35DJW (IC701) : System controller 1. Pin layout 2. Pin function (1/2) Symbol Function Pin No. VOL.JOG IN_1 VOL.JOG IN_1 VOL.JOG IN_2 VOL.JOG IN_2 DATA (PLL) DATA (PLL) (PLL) (PLL) (PLL) (PLL) VIDEO S/C DVD VIDEO S/C DVD VIDEO S/C VCR...
  • Page 15 RX-6020VBK Pin function (2/2) MN101C35DJW Symbol Function Pin No. CLK DSP (DSP) READY READY (DSP) RESET RESET (DSP) RY S RELAY SURRUND RY C RELAY CENTER RY L/R1 RELAY FRONT 1 RY L/R2 RELAY FRONT 2 RY HP RELAY HEADPHONE...
  • Page 16 RX-6020VBK UPD784215AGC167 (IC671) : Dital signal controller 1.Pin layout 2.Pin function (1/2) Pin No. Symbol Function Non connect Power supply terminal Connecting the crystal oscillator for system main clock Connecting the crystal oscillator for system main clock Connect to GND...
  • Page 17 RX-6020VBK Pin function (2/2) UPD784215AGC167 Pin No. Symbol Function Interface I/O terminal with microcomputer MILP Interface I/O terminal with microcomputer MIACK Non connect Non connect Reset signal output of DSP DSPRST Non connect 54~63 Interface I/O terminal with microcomputer CODEC OUT...
  • Page 18 RX-6020VBK LA1838 (IC102) : FM AM IF amp. & Detector, FM MPX decoder 1. Block Diagram DECODER RF.AMP ANIT-BIRDIE MUTE BUFF STEREO P-DET AM IF PILOT 384KHz COMP S-METER AM/FM S-CLRVE S-METER IF-BUFF TUNING STEREO DRIVE DRIVE FM IF 2. Pin Function...
  • Page 19 RX-6020VBK LC72136N (IC121) : PLL frequency synthesizer 1. Pin layout FM/AM LPFOUT LPFIN CLOCK FM/ST/VCO FMIN AM/FM AMIN IFCONT SDIN IFIN 2. Block diagram Phase Reference Detector Driver Charge Pump Swallow Counter Swallow Counter 1/16,1/17 4bit 1/16,1/17 4bit Unlock Detector...
  • Page 20 RX-6020VBK TC9162AF (IC423) : Analog switch 1. Pin layout 2. Block diaglam R-S1 L-S1 R-S2 L-S2 R-COM1 L-COM1 R-S3 L-S3 R-S4 L-S4 R-COM2 L-COM2 R-S5 L-S5 R-S6 L-S6 R-COM3 L-COM3 R-S7 L-S7 R-COM4 L-COM4 DATA SHIFT REGISTER 1-20...
  • Page 21 RX-6020VBK TC9446F-025 (IC631) : Digital signal processor for dolby digital (AC-3) / DTS audio decode Pin No. Symbol Function Reset signal input terminal (L:reset H: normal operation) Microcomputer interface mode selection input terminal (L:serial H:IC bus) MIMD Microcomputer interface chip select input terminal...
  • Page 22 RX-6020VBK BA15218 (IC451) : Ope. amp. BA15218N (IC403) : Dual ope. amp. 1. Pin layout / Block diaglam 1. Pin layout / Block diaglam OUT1 -IN1 OUT2 +IN1 -IN2 OUT1 +IN1 +IN1 GND +IN2 -IN2 OUT2 Vcc +IN2 NJM2246D (IC501) : Video switch 1.
  • Page 23 RX-6020VBK IMX9-W (IC652, IC662, IC682) : Driver TC7SET32FU (IC672) : Z-Input or gate 1. Pin layout / Block diagram 1. Pin layout / Block diagram IN B IN A OUT Y TC74HCU08AF (IC611) : Inverter 1. Pin layout / Block diagram 2.The truth value table...
  • Page 24 RX-6020VBK W24L010AJ-12 (IC641) : SRAM 1. Pin layout 2. Block diaglam DECODER CORE ARRAY I/O1 CONTROL DATA I/O I/O8 3. Pin function Pin No. Symbol Function Symbol Pin No. Function No Connection I/O4 Data Input/Output Address Input I/O5 Data Input/Output...
  • Page 25 RX-6020VBK < M E M O > 1-25...
  • Page 26 RX-6020VBK VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.21063) 200202(V)

  • Page 27: Block Diagram

    RX-6020VBK Block diagram VIDEO MONITOR DVD FRONT IC451 SELECTOR DVD IN CENTER TUNER IC501 RF101 IC121 OUT VCR REC DVD REAR/ SUB WOOFER AM/FM DET MW RF&OSC IN VCR P.B. SUB WOOFER IC102 T111 AV COMPU LINK CN451 PLL CLK, PLL DATA, PLL CE,...
  • Page 28 RX-6020VBK RX-6020VBK Standard schematic diagrams Power supply section Audio / Video signal input terminal section PW311 PW101 CN251 QGA3901F2-03 To sheet 6/7 G-3 F202 C441 C443 C445 QGF1205C1-14 4.7/50 0.022 CN201 2A-125V RY_HP 4.7/50 RY_LR2 C419 F203 0.022 IC403 RY_LR1...
  • Page 29 RX-6020VBK Audio & Speaker terminal section To sheet 1/7 B-5 EP301 CN351 C1301 0.1/160 C1302 0.01/500 D1301 D1304 C1303 0.01/500 C1305 C1304 6800/63 6800/63 CN321 QGB2510J1-14 L1351 QQLZ005-R45 ST305 QNB0001-002 B1005 R1301 3.3k L1352 QQLZ005-R45 R1302 CN311 QGB2510J1-14 Q1301 KTA1046/Y/...
  • Page 30 RX-6020VBK RX-6020VBK Audio amplirier section TP301 C819 10/100 R821 R321 C821 C321 R849 R831 Q805 Q815 Q315 R815 KTA1268/GL/ R349 C307 D305 C319 Q819 C815 R829 0.0015 1SS133 R331 Q319 100/63 KTA1268/GL/ VR301 R339 KTA1268/GL/ D805 R307 R363 C817 2.7k 2.2/50...
  • Page 31 RX-6020VBK Main section Main section (Volume / Regulator / Source select) To sheet 7/7 E-1 To sheet 6/7 G-4 To sheet 1/7 G-4 To sheet 5/7 C-1 CN412 CN411 CN421 CN481 CN402 QGB2501J1-12 QGB2510J1-14 QGB2510J1-20 QGF1205C1-25 VGA2501C1-04 CN403 C1425 R1453...
  • Page 32 RX-6020VBK RX-6020VBK Digital signal input terminal / Surround section C627 TP601 J601 R621 K601 R622 NQR0319-001 D609 D610 QNN0347-001 IC621 1/50 TC74HCU04AF 1SS355-X 1SS355-X C621 C622 100p C630 J601 C626 R627 4.7k C608 R617 R618 IC612 TC74HC4072AF R2515 TP509 TP501...
  • Page 33 RX-6020VBK User control / System control / FL displaying section C709 C707 4.7/50 4.7/50 QRB079J-104 QRB079J-104 RA701 RA702 GRID1 Q707 DTC114Y GRID2 Q708 DTC114Y DI701 QLF0098-001 GRID16 Q709 DTC114Y RDS_CLK R782 RDS_DATA R781 RDS_DAVN R780 CN703 QJK021-043004 GRID15 SEG12 SEG13...
  • Page 34 RX-6020VBK RX-6020VBK Tuner section FM/TUNER Signal Parts are safety assurance parts. When replacing those parts make sure to use the specified one. CN411 To sheet 4/7 B-5 SHEET 7/7...

  • Page 35: Printed Circuit Boards

    RX-6020VBK Printed circuit boards Wire protection board Main board Audio input board R449 CN401 R450 R436 C442 R442 R429 R441 R430 C441 C433 Q1356 Q1355 B432 ST305 ST304 Q1353 C1377 R431 R1369 Q1354 R1368 C1358 Q1352 R440 C440 C434 C1367...
  • Page 36 RX-6020VBK RX-6020VBK System control & Audio board System control & displaying board S737 S739 S732 S735 S733 S729 S755 S757 B1710 R740 S741 B701 B703 R773 B1713 S745 S744 B704 B737 B1742 B705 B729 B754 B742 B706 B732 B1733 D701...
  • Page 37 RX-6020VBK Power amp. board Amplifier board B2037 B2025 B2026 B2038 B110 B2027 B2039 TA201 PW104 B2028 B2040 B2029 B2041 B109 B2030 B2042 B108 B106 PW105 TA202 PW102 B105 B107 C819 C820 FC211 B104 PW103 B2031 B2043 B2032 B103 B2044 Power transformer board...
  • Page 38 RX-6020VBK RX-6020VBK Digital signal input terminal board Tuner board Forweard side K688 R670 Q670 C687 R697 R687 C690 IC681 CN687 LC631 C688 K687 CN681 C686 R698 K682 AT101 C685 X671 R677 K681 LC671 LC641 R689 R688 R680 R679 C677 Q112...

  • Page 39: Parts List

    RX-6020VBK PARTS LIST [ RX-6020VBK ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix J ----------------------------- U.S.A. C -------------------------- Canada - Contents - 3- 3 Exploded view of general assembly and parts list (Block No.M1) 3- 5 Electrical parts list (Block No.01~05)
  • Page 40 RX-6020VBK < M E M O >...
  • Page 41 RX-6020VBK Exploded view of general assembly and parts list Block No. Power trans board Power trans board Speaker board Power/Fuse board Relay board Main board Audio board Power supply board power switch board System control board...
  • Page 42 RX-6020VBK RX-6020VBK Parts list (General assembly) Parts list (General assembly) Block No. M1MM Block No. M1MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area LV10457-019A FRONT PANEL QYSBSGY3008M SPECIAL SCREW 4 INPUT...
  • Page 43 RX-6020VBK Electrical parts list (Power amp board) Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area C 201 QFLC2AJ-104Z M CAPACITOR .10MF 5% 100V C 813 QFLC1HJ-103Z M CAPACITOR .010MF 5% 50V...
  • Page 44 RX-6020VBK Electrical parts list (Power amp board) Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area D 221 1SS133-T2 SI DIODE IM Q 311 KTC3200/GL/-T TRANSISTOR D 301 1SS133-T2 SI DIODE IM...
  • Page 45 RX-6020VBK Electrical parts list (Power amp board) Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area R 314 QRE141J-563Y C RESISTOR 56K 5% 1/4W R 804 QRE141J-563Y C RESISTOR 56K 5% 1/4W...
  • Page 46 RX-6020VBK Electrical parts list (Power amp board) Block No. 01 Item Remarks Parts number Parts name Area R 913 QRE141J-563Y C RESISTOR 56K 5% 1/4W R 915 QRJ146J-331X UNF C RESISTOR 330 5% 1/4W R 921 QRJ146J-100X UNF C RESISTOR...
  • Page 47 RX-6020VBK Electrical parts list (Main board) Block No. 02 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area C 400 QCBB1HK-223Y C CAPACITOR .022MF 10% 50V D1301 30DF2-FC DIODE C 419 QCBB1HK-223Y C CAPACITOR .022MF 10% 50V...
  • Page 48 RX-6020VBK Electrical parts list (Main board) Block No. 02 Item Remarks Parts number Parts name Area R 445 QRE141J-104Y C RESISTOR 100K 5% 1/4W R 446 QRE141J-104Y C RESISTOR 100K 5% 1/4W R 449 QRJ146J-271X UNF C RESISTOR 270 5% 1/4W...
  • Page 49 RX-6020VBK Electrical parts list (System control & Audio board) Block No. 03 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area BK701 LV42093-001A FL HOLDER(L) C1438 QETN0JM-477Z E CAPACITOR 470MF 20% 6.3V BK702 LV42092-001A FL HOLDER(R)
  • Page 50 RX-6020VBK Electrical parts list (System control & Audio board) Block No. 03 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area Q1408 KTA1271/OY/-T TRANSISTOR R 724 NRSA63J-122X MG RESISTOR Q1413 2SC3576-JVC-T TRANSISTOR I/M R 725...
  • Page 51 RX-6020VBK Electrical parts list (System control & Audio board) Block No. 03 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area R1404 QRJ146J-272X UNF C RESISTOR 2.7K 5% 1/4W S 725 QSW0683-001Z PUSH SWITCH FM MODE...
  • Page 52 RX-6020VBK Electrical parts list (DSP board) Block No. 04 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area C 601 NCB31HK-102X C CAPACITOR C2508 NCS31HJ-330X C CAPACITOR C 602 NCB31HK-102X C CAPACITOR C2512 NCF31CZ-104X C CAPACITOR...
  • Page 53 RX-6020VBK Electrical parts list (DSP board) Block No. 04 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area IC661 BA15218F-XE R 676 NRSA63J-432X MG RESISTOR IC662 IMX9-W R 677 NRSA63J-822X MG RESISTOR IC671 UPD784215AGC167 IC(MICRO C ROM)
  • Page 54 RX-6020VBK Electrical parts list (DSP board) Block No. 04 Item Remarks Parts number Parts name Area R2564 NRSA63J-103X MG RESISTOR R2565 NRSA63J-202X MG RESISTOR R2566 NRSA63J-202X MG RESISTOR R2567 NRSA63J-103X MG RESISTOR R2568 NRSA63J-103X MG RESISTOR R2569 NRSA63J-122X MG RESISTOR...
  • Page 55 RX-6020VBK Electrical parts list (Tuner board) Block No. 05 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area AT101 QNB0014-001 ANT TERMINAL R 115 NRSA02J-104X MG RESISTOR BK 1 LV31618-001A SHIELD BKT R 119 NRSA02J-103X...
  • Page 56 RX-6020VBK Packing materials and accessories parts list Block No. Block No. A2~A9 3-18...
  • Page 57 RX-6020VBK Parts list (Packing) Block No. M3MM Item Parts number Parts name Q'ty Description Area QPA02503505P POLY BAG LV20983-029A CARTON BOX LV20925-001A PACKING PAD LV20926-001A PACKING PAD QPC06507015P POLY BAG Parts list (Accessories) Block No. M5MM Item Description Parts number...