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JVC RX-7012VSL Service Manual
JVC RX-7012VSL Service Manual

JVC RX-7012VSL Service Manual

Audio/video control receiver
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SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
CATV/DBS
VCR
TV
AUDIO
DVD
DVD MUILTI
CD
FM/AM
TV/DBS
VCR
TAPE/CDR
PHONO
BASS
+
TREBLE
+
SURROUND
DSP
ANALOG/DIGITAL SLEEP
ON/OFF
MODE
INPUT
BASS BOOST EFFECT
+ CENTER –
1
2
3
MENU
TEST
+ REAR•L –
4
5
6
ENTER
SOUND
– REAR•R +
7/P
8
9
MUTING
– SUB WOOFER +
FM/AM TUNING
0
10
+10
100 +
STANDBY
RETURN
FM MODE
CA TV/DBS
CONTROL
CONTROL
+
+
+
STANDBY/ON
D I G I T A L
CH
TV VOL
VOLUME
TV/VIDEO
S U R R O U N D
PLAY
+
SURROUND ON/OFF
/REW
FF/
TUNING
PAUSE
DSP MODE
REC
PAUSE
STOP
CONTROL
PHONES
A/V CONTROL RECEIVER
Because the A version of this model has no AV COMPU LINK
function, the AV COMPU LINK's logo mark is not attached on
the A version model.
Contents
Safety precautions --------------------------------------------------------1-2
Disassembly method -----------------------------------------------------1-3
Adjustment method -------------------------------------------------------1-8
Description of major ICs -------------------------------------------------1-9~21
RX-7012VSL
AUDIO/VIDEO CONTROL RECEIVER
FM/AM PRESET
FM MODE
MEMORY
D I G I T A L
INPUT
ANALOG/DIGITAL
BASS BOOST
DVD MULTI
DVD
VCR
INPUT ATT
SPEAKERS ON/OFF
1
2
PHONO
CD
TAPE/CDR
SOURCE NAME
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
MASTER VOLUME
ADJUST
SETTING
TV SOUND/DBS
SOURCE NAME
CONTROL
DOWN
UP
FM/AM
RX-7012VSL
Area Suffix
A
Australia
US
Singapore
UT
Taiwan
COMPULINK
Remote
D I G I T A L
No.21005
Jul. 2001

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Summary of Contents for JVC RX-7012VSL

  • Page 1 RX-7012VSL SERVICE MANUAL AUDIO/VIDEO CONTROL RECEIVER RX-7012VSL Area Suffix Australia Singapore Taiwan CATV/DBS AUDIO DVD MUILTI FM/AM TV/DBS TAPE/CDR PHONO − BASS − TREBLE SURROUND ANALOG/DIGITAL SLEEP ON/OFF MODE INPUT BASS BOOST EFFECT + CENTER – MENU TEST + REAR•L –...
  • Page 2 RX-7012VSL 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-7012VSL 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 Fig.1...
  • Page 4 RX-7012VSL Removing each board connected to the rear side of the audio board CN411 (See Fig.5 to 8) Prior to performing the following procedure, remove the top cover and the rear panel. Audio board Cut off the tie band fixing the harness.
  • Page 5 RX-7012VSL Removing the audio board (See Fig.9) Relay board Prior to performing the following procedure, remove the top cover and the rear panel. power CN473 supply Disconnect the card wire from connector CN402 on board the audio board. CN291 Power...
  • Page 6 RX-7012VSL Removing the voltage select board (See Fig.13) Power transformer Solder Prior to performing the following procedures, remove points the top cover and the rear panel. Cut off the tie band fixing the harness. Voltage select board Unsolder the six harnesses connected to the power Tie band transformer.
  • Page 7 RX-7012VSL Removing the power supply board (See Fig.15 and 16) Prior to performing the following procedure, remove the top cover and the front panel. Remove the one nut attaching the headphone jack of the power supply board on the front side of the body.
  • Page 8 RX-7012VSL Adjustment method Tuner section 1.Tuner range 87.5MHz~108.0MHz AM(MW) 522kHz~1629kHz : (A model) 531kHz~1602kHz (9kHz step) : (US,UT model) 530kHz~1600kHz (10kHz step) : (US,UT model) Power amplifier section Adjustment of idling current Measurement location TP301(Lch) , TP302(Rch) Adjustment part VR301(Lch) , VR302(Rch)
  • Page 9 RX-7012VSL Description of major ICs TC9446F-014 (IC631) : Digital signal processor for dolby digital (AC-3) / dts audio decode Pin No. Symbol Function Reset signal input terminal (L: reset H: Operation usually) Microcomputer interface mode selection input terminal (L: serial H:IC bus)
  • Page 10 RX-7012VSL AK4527B (IC601) : A/D,D/A Converter 1.Pin layout DZF2/OVF SDOS RIN+ RIN- SMUTE LIN+ BICK AK4527BVQ LIN- LRCK ROUT1 SDTI1 LOUT1 SDTI2 Top View ROUT2 SDTI3 LOUT2 SDTO ROUT3 DAUX LOUT3 2. Pin function (1/2) AK4527(1/2) Pin name Function SDOS SDTO Source Select Pin (Note 1) "L"...
  • Page 11 RX-7012VSL Pin function (2/2) AK4527(1/2) Pin name No Connect Function No internal bonding. Analog Input Format Select Pin ADIF "H" : Full-differential input, "L" : Single-ended input Chip Address 1 Pin CAD1 Chip Address 0 Pin CAD0 DAC3 Lch Analog Output Pin...
  • Page 12 RX-7012VSL MN101C35DHK1 (IC701) : System controller Pin function (1/2) Symbol Function Pin No. TXD/SB00/P00 VOL.JOG IN_1 RXD/SBI0/P01 VOL.JOG IN_2 SBT0/P02 DATA (PLL) SB01/P03 (PLL) SBI1/P04 (PLL) SBT1/P05 VIDEO S/C DVD BUZZER/P06 VIDEO S/C VCR Power supply +5V 9,10 OSC1,2 OSC (8MHz)
  • Page 13 RX-7012VSL Pin function (2/2) MN101C35DHK1 Symbol Function Pin No. (DSP) SBT2/P32 READY (DSP) RESET (DSP) RELAY S RELAY C RELAY L/R 1 RELAY L/R 2 DGT17/P67 RELAY HEADPHONE DGT16/P66 FL GRID SIGNAL CONTROL OUT FL SEGMENT SIGNAL CONTROL OUT LED8 SIGNAL CONTROL OUT (FM/AM)
  • Page 14 RX-7012VSL 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 15 RX-7012VSL 2.Pin Function Pin No. Symbol Descriptions SURROUND SURROUND control terminal BASS BOOST BASS BOOST control terminal INPUT-ATT Input attenuator control terminal MUTING control terminal MUTING AVDD Analog positive power supply terminal SUB Woofer volume signal input terminal SWIN A.GND...
  • Page 16 RX-7012VSL 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 17 RX-7012VSL 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 18 RX-7012VSL UPD784215AGC103 (IC671) : Unit CPU 1.Pin layout 2.Pin function 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 Connecting the crystal oscillator for system sub clock...
  • Page 19 RX-7012VSL AS7C31025-15 (IC641) : CMOS SRAM Pin layout Block diagram 32-pin TSOP II Input buffer I/O7 I/O7 I/O0 512x256x8 I/O6 I/O1 Array (1,048,576) I/O5 I/O2 I/O0 I/O4 I/O3 Control Column decoder circuit PQ3DZ53 (IC681) : Regulator IC DC INPUT(Vin) DC OUTPUT(Vo)
  • Page 20 RX-7012VSL BA15218F (IC403,IC427,IC609,IC610,IC650,IC651,IC661,IC690,IC691) : Op amp 1. Pin layout & Block diagram OUT1 -IN1 OUT2 +IN1 -IN2 +IN2 BU4066BCF (IC611) : Switch 2.Block Diagram 1.Terminal Layout TC7SET32FU (IC672) : 2 input or gate 1. Pin layout & Block diagram IN B...
  • Page 21 RX-7012VSL TC9164AN (IC402) : Analog switch 1.Function Switch to On/Off of S1 to S8 by control of LSI. 2.Terminal Lay out & Block Diagram TC9164AN L-S1 R-S1 SHIFT SHIFT RESISTOR RESISTOR & & COM-1 6 COM-1 LATCH LATCH COM-2 COM-2...
  • Page 22 RX-7012VSL 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.21005) 200107(V)
  • Page 23 RX-7012VSL Block diagram DVD L/R SELECTOR SELECTOR SENTER/SUBWOOFER VCR P.B. AM/FM DET TV/DBS TUNER IC551 IC501 RF101 DVD REAR L/R IC102 IC552 VCR REC VCR REC MONITOR MW RF&OSC WOOFER IC121 MONITOR T111 CN451 AV COMPU LINK TUNER L/R VCR P.B.
  • Page 24 RX-7012VSL RX-7012VSL Standard schematic diagrams Power supply section (A version) PW310 PW301 PW101 PW309 CN251 PW311 PW308 F202 PW307 CN201 T2AL RY_HP RY_LR2 PW306 F203 RY_LR1 RY_C T2AL PW302 RY_S PROTECTOR_IN PW102 R201 POWER RY_SURROUND FW201 FW201 F201 PW203 PW103 F205 T2.5AL...
  • Page 25 RX-7012VSL Power supply section (US/ UT version) PW310 PW301 PW101 PW410 PW409 PW309 CN251 F204 VS201 T2.5AL PW411 PW311 PW408 PW308 F202 PW407 PW307 CN201 T2AL RY_HP PW406 RY_LR2 PW306 F203 RY_LR1 RY_C T2AL PW302 RY_S PROTECTOR_IN PW102 R201 POWER...
  • Page 26 RX-7012VSL RX-7012VSL Audio & Speaker terminal section CN351 C1301 0.1/160 C1302 0.01/500 D1301 D1302 D1303 D1304 C1303 0.01/500 C1355 ST302 0.022 QNB0001-001 C1356 C1304 C1305 220P 6800/63 6800/63 L1351 R1351 R1368 QSK109-001 CN321 QQLZ005-R45 D1351 R1369 RY301 1SS133 C1358 220P C1357 0.022...
  • Page 27 RX-7012VSL Audio amplirier section TP301 C819 R821 10/100 R321 C821 C321 R849 Q805 Q815 2SD2390/OPY/-F6 2SD2390/OPY/-F6 R815 R831 KTA1268/GL R349 C319 D305 C307 1SS133 C815 R829 100/63 R331 Q315 Q319 KTA1268/GL 0.0015 KTA1268/GL VR301 R329 R339 D805 Q819 C817 2.2/50...
  • Page 28 RX-7012VSL RX-7012VSL Main section Sheet 6/9 Sheet 7/9 Sheet 8/9 Sheet 9/9 CN411 CN421 CN481 CN402 C1425 R1453 100/10 R1456 Q1420 C1438 KRA104M 470/6.3 C1424 R1449 4.7/50 S_MUTE R1450 R1452 100K Q1419 2SC3575-JVC C1406 100/25 R1474 R1448 CN473 R1451 Q1423...
  • Page 29 RX-7012VSL Audio / Video / S Video / DVD signal input section IC401 C408 100P NJM4580DD C414 R406 R410 C415 470K R408 4.7/50 47/16 R412 C406 C410 100K C400 100/10 C412 0.022 0.0068MY 0.0018MY J401 R409 470K R407 QNN0389-001 C405...
  • Page 30 RX-7012VSL RX-7012VSL DSP section C627 C628 TP601 0.01 K601 R621 R622 NQR0269-004 J601 1/50 QNN0347-001 IC621 IC622 C621 C622 TC7SU04FU TC7SU04FU 100P K602 NQR0269-004 J601 C626 R627 4.7K C629 R628 TP602 C608 R629 R618 R617 C607 100/16 TP509 R2515 TP501...
  • Page 31 RX-7012VSL System control & FL displaying section C709 C707 4.7/50 4.7/50 QRB079J-104 QRB089J-104 RA701 RA702 GRID1 Q707 DTC114Y GRID2 Q708 DTC114Y DI701 QLF0082-001 GRID16 Q709 DTC114Y CN703 RDS_CLK R782 RDS_DATA R781 RDS_DAVN R780 QJK021-043004 SEG12 GRID15 SEG13 GRID16 R704 CN702...
  • Page 32 RX-7012VSL RX-7012VSL Tuner section FM/TUNER Signal Parts are safety assurance parts. When replacing those parts make sure to use the specified one. sheet 5/9 CN411 SHEET 9/9 2-10...
  • Page 33 RX-7012VSL Printed circuit boards Main board R449 CN401 R450 R436 C442 R442 R429 R441 ST302 ST301 ST303 R430 C441 C433 Q1356 Q1355 B432 Q1353 C1377 R431 R1369 Q1354 R1368 Q1352 R440 C440 C434 C1367 C1356 C1355 C1378 C1358 C1364 C1376...
  • Page 34 RX-7012VSL RX-7012VSL System control & Audio board S737 S739 S732 S735 S733 S729 S755 S757 B754 B1710 S741 B701 B703 R738 B1713 S744 S745 B704 B737 B1718 B731 B705 B702 B1742 B742 R737 B729 B732 B706 C703 B1733 S740 S736...
  • Page 35 RX-7012VSL Power amp. board B2025 B2037 B2026 B2038 B110 B2027 B115 B2039 PW409 B117 TA201 PW104 B2028 B2040 PW407 B2029 B2041 B109 B116 B118 B2030 FC242 FC241 B2042 B108 B106 PW105 B111 B119 VS201 TA202 PW102 PW408 B107 B105 B112...
  • Page 36 RX-7012VSL RX-7012VSL Tuner board DSP board Forward side K688 R670 Q670 C687 R687 R697 C690 IC681 CN687 C688 K687 CN681 C686 R698 K682 C685 AT101 R677 X671 LC671 K681 LC641 R688 R689 R680 R679 C677 Q112 C2592 R2586 C2584 B105...
  • Page 37 RX-7012VSL PARTS LIST [ RX-7012VSL ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix A ------------------------- Australia US --------------------- Singapore UT -------------------------- Taiwan - Contents - Exploded view of general assembly and parts list...
  • Page 38 RX-7012VSL < M E M O >...
  • Page 39 RX-7012VSL Exploded view of general assembly and parts list Block No. Power trans board Speaker Power trans board board Vol sel board Power/Fuse board Relay board Main board Audio board power switch board Power supply board System control board...
  • Page 40 RX-7012VSL RX-7012VSL 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 LV10457-005A FRONT PANEL QYSBSGY3008M SPECIAL SCREW R.P-ud--- VJD5429-002SS...
  • Page 41 RX-7012VSL Electrical parts list (Power amp board) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 201 QFLC2AJ-104Z M CAPACITOR .10MF 5% 100V C 812 QCS31HJ-100Z C CAPACITOR 10PF 5% 50V...
  • Page 42 RX-7012VSL Electrical parts list (Power amp board) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area D 220 1SR139-400-T4 DIODE Q 301 2SC2240/L/-T TRANSISTOR D 221 1SS133-T2 SI DIODE Q 302 2SC2240/L/-T...
  • Page 43 RX-7012VSL Electrical parts list (Power amp board) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area R 304 QRE141J-563Y C RESISTOR 56K 5% 1/4W R 513 QRE141J-152Y C RESISTOR 1.5K 5% 1/4W...
  • Page 44 RX-7012VSL Electrical parts list (Power amp board) Block No. 01 Item Remarks Parts number Parts name Area R 861 QRE141J-332Y C RESISTOR 3.3K 5% 1/4W R 862 QRE141J-332Y C RESISTOR 3.3K 5% 1/4W R 901 QRE141J-222Y C RESISTOR 2.2K 5% 1/4W...
  • Page 45 RX-7012VSL Electrical parts list (Main board) Block No. 02 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 400 QCBB1HK-223Y C CAPACITOR .022MF 10% 50V CN312 QGB2510J1-14 CONNECTOR C 401 QETN1HM-475Z E CAPACITOR 4.7MF 20% 50V...
  • Page 46 RX-7012VSL Electrical parts list (Main board) Block No. 02 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area D1357 1SS133-T2 SI DIODE R 424 QRE141J-471Y C RESISTOR 470 5% 1/4W D1358 1SS133-T2 SI DIODE R 425...
  • Page 47 RX-7012VSL (Main board) Electrical parts list Block No. 02 Item Remarks Parts number Parts name Area R1352 QRJ146J-680X UNF C RESISTOR 68 5% 1/4W R1353 QRJ146J-680X UNF C RESISTOR 68 5% 1/4W R1354 QRJ146J-680X UNF C RESISTOR 68 5% 1/4W...
  • Page 48 RX-7012VSL Electrical parts list (System control & Audio board) Block No. 03 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area BK701 LV42093-001A FL HOLDER(L) C1418 QFLC1HJ-223Z M CAPACITOR .022MF 5% 50V BK702 LV42092-001A FL HOLDER(R)
  • Page 49 RX-7012VSL Electrical parts list (System control & Audio board) Block No. 03 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area IC702 IC-PST9139-T R 489 NRSA63J-562X MG RESISTOR IC703 GP1U281X R 490 NRSA63J-562X MG RESISTOR...
  • Page 50 RX-7012VSL Electrical parts list (System control & Audio board) Block No. 03 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area R1438 NRSA63J-102X MG RESISTOR R 763 NRSA63J-102X MG RESISTOR R1439 NRSA63J-103X MG RESISTOR R 764...
  • Page 51 RX-7012VSL Electrical parts list (DSP board) Block No. 04 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 601 NCB31HK-102X C CAPACITOR C2507 NCS31HJ-330X C CAPACITOR C 602 NCB31HK-102X C CAPACITOR C2508 NCS31HJ-330X C CAPACITOR...
  • Page 52 RX-7012VSL Electrical parts list (DSP board) Block No. 04 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area IC671 UPD784215AGC103 IC R 676 NRSA63J-432X MG RESISTOR IC672 TC7SET32FU-X R 677 NRSA63J-822X MG RESISTOR IC681 PQ3DZ53-X...
  • Page 53 RX-7012VSL Electrical parts list (DSP board) Block No. 04 Item Remarks Parts number Parts name Area R2558 NRSA63J-223X MG RESISTOR R2560 NRSA63J-105X MG RESISTOR R2561 NRSA63J-104X MG RESISTOR R2562 NRSA63J-104X MG RESISTOR R2563 NRSA63J-103X MG RESISTOR R2564 NRSA63J-103X MG RESISTOR...
  • Page 54 RX-7012VSL Electrical parts list (Tuner board) Block No. 05 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area AT101 QNB0014-001 ANT TERMINAL R 122 NRSA02J-472X MG RESISTOR BK 1 LV31618-001A SHIELD BKT R 124 NRSA02J-222X...
  • Page 55 RX-7012VSL < M E M O > 3-19...
  • Page 56 RX-7012VSL Packing materials and accessories parts list Block No. Block No. Ver.US/UT A2~A6,A9 Ver.A A2~A5,A7,A8 3-20...
  • Page 57 RX-7012VSL Parts list (Packing) Block No. M2MM Item Parts number Parts name Q'ty Description Area QPA02503505P POLY BAG FOR INST LV20983-019A PACKING CASE US,UT LV20983-015A PACKING CASE LV20925-001A PACKING PAD LV20926-001A PACKING PAD QPC06507015P POLY BAG FOR SET LV30385-004A PACKING SHEET...