Jvc-RX-7032-VSL-Service-Manual电路原理图.pdf
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1、SERVICE MANUALCOPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITEDNo.MB0032003/8AUDIO/VIDEO CONTROL RECEIVERMB00320037RX-7032VSLTABLE OF CONTENTS1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-
2、42 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3、1-64 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-135 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4、. . . . . 1-14Area SuffixE-Continental EuropeEN-Northern EuropeEV-Eastern EuropeMASTER VOLUMEPUSH OPENSUBWOOFER OUT ON/OFFSPEAKERS ON/OFFPHONES1STANDBYRX-7032V AUDIO/VIDEO CONTROL RECEIVERBASS BOOSTANALOG DIRECT2STANDBY/ONTV SOUND/DBSVCRDVDDVD MULTI AMFMTAPE/CDRCDSETTING ADJUSTQUICK SPEAKERSETUP EXI
5、TSURROUNDDSPSURROUND/ DSPOFF231564897/P0 +10FRONTLMENUENTERFRONTRTESTCD DISCMIDNIGHTCENTER SUB WOOFERDIGITAL EQ SURR BACKSURRL SURRRSOUNDCH/ LEVEL TV VOLMUTINGDIMMERVOLUMECATV/DBSCONTROLTAPE/CDRCONTROLVCRCONTROLTV/VIDEOREC PAUSESLEEPRETURN FM MODE 100+REMOTE CONTROL RM-SRX7032RCATV/DBS VCR TV AUDIOD
6、SPOFFDVD MULTI CDANALOG/DIGITALBASS BOOSTTAPE/CDRFM/AMTV/DBS VCRSURROUNDEX/ESSURR/DSPA/V CONTROL RECEIVERINPUTMODEDIRECTANALOGDVD10/0/REW FF/TA/NEWS/INFODISPLAYMODE1-2 (No.MB003)SPECIFICATIONAmplifier Output Power At Stereo operation Front ch 100 W per channel, min. RMS, driven into 8 at 1 kHz, with
7、 no more than 0.8% total harmonic distortion (IEC268-3/DIN).At Surround operation Front ch 100 W per channel, min. RMS, driven into 8 at 1 kHz, with no more than 0.8% total harmonic distortion.Center ch 100 W, min. RMS, driven into 8 at 1 kHz, with no more than 0.8% total harmonic distortion.Surroun
8、d ch 100 W per channel, min. RMS, driven into 8 at 1 kHz, with no more than 0.8% total harmonic distortion.Surround Back ch 100 W, min. RMS, driven into 8 at 1 kHz, with no more than 0.8% total harmonic distortion.Audio Audio Input Sensitivity/Impedance (1 kHz)DVD IN, VCR IN, TV SOUND/DBS IN 200 mV/
9、47 kCD IN, TAPE/CDR IN 200 mV/47 kAudio Input(DIGITAL IN)*Coaxial DIGITAL 1 (DVD) 0.5 V(p-p)/75 Optical DIGITAL 2 (CD),DIGITAL 3 (TV),DIGITAL 4 (CDR)-21 dBm to -15 dBm (660 nm 30 nm)* Corresponding to Linear PCM, Dolby Digital, and DTS Digital Surround (with sampling frequency-32 kHz, 44.1 kHz, 48 k
10、Hz).Audio Output Level SUBWOOFER OUT 1 VRecording Output Level VCR OUT, TAPE/CDR OUT 200 mVDigital output Optical DIGITAL OUTSignal wave length 660 nmOutput level -21 dBm to -15 dBmSignal-to-Noise Ratio(66 IHF/DIN)DVD IN, VCR IN, TV SOUND/DBS IN 87 dB/67 dBCD IN, TAPE/CDR IN 87 dB/67 dBFrequencyResp
11、onse(8 )DVD IN, VCR IN, TV SOUND/DBS IN 20 Hz to 100 kHz (+1 dB, -3 dB)CD IN, TAPE/CDR IN 20 Hz to 100 kHz (+1 dB, -3 dB)Equalization (5 bands) 63 Hz, 250 Hz, 1 kHz, 4 kHz, 16 kHz (8 dB)Bass boost +6 dB 1.0 dB at 100 HzVideo Video Input Sensitivity/ImpedanceComposite videoDVD IN, VCR IN, TV SOUND/DB
12、S IN: 1 V(p-p)/75 S-video DVD IN, VCR IN,TV SOUND/DBS IN(Y: luminance) 1 V(p-p)/75 (C: chrominance, burst) 0.286 V(p-p)/75 Video Output Level Composite videoVCR OUT,MONITOR OUT 1 V(p-p)/75 S-video VCR OUT,MONITOR OUT(Y: luminance) 1 V(p-p)/75 (C: chrominance, burst) 0.286 V(p-p)/75 Synchronization N
13、egativeSignal-to-Noise Ratio 45 dB(No.MB003)1-3Designs & specifications are subject to change without noticeFM tuner (IHF) Tuning Range 87.50 MHz to 108.00 MHzUsable Sensitivity Monaural 17.0 dBf (1.9 V/75 )50 dB Quieting Sensitivity Monaural 21.3 dBf (3.2 V/75 )Stereo 41.3 dBf (31.8 V/75 )Stereo Se
14、paration at REC OUT 35 dB at 1 kHzAM (MW) tuner Tuning Range 522 kHz to 1 629 kHzGeneral Power Requirements AC 230V , 50 HzPower Consumption 250 W (at operation) 2 W (in standby mode)Dimensions (W H D) 435 mm 157 mm 425 mmMass 12.1 kg1-4 (No.MB003)SECTION 1PRECAUTION1.1 Safety Precautions(1) This de
15、sign of this product contains special hardware andmany circuits and components specially for safety purpos-es. For continued protection, no changes should be madeto the original design unless authorized in writing by themanufacturer. Replacement parts must be identical tothose used in the original c
16、ircuits. Services should be per-formed by qualified personnel only.(2) Alterations of the design or circuitry of the product shouldnot be made. Any design alterations of the product shouldnot be made. Any design alterations or additions will voidthe manufacturers warranty and will further relieve th
17、emanufacture of responsibility for personal injury or propertydamage resulting therefrom.(3) Many electrical and mechanical parts in the products havespecial safety-related characteristics. These characteris-tics are often not evident from visual inspection nor can theprotection afforded by them nec
18、essarily be obtained by us-ing replacement components rated for higher voltage, watt-age, etc. Replacement parts which have these specialsafety characteristics are identified in the Parts List of Ser-vice Manual. Electrical components having such featuresare identified by shading on the schematics a
19、nd by ( ) onthe Parts List in the Service Manual. The use of a substitutereplacement which does not have the same safety charac-teristics as the recommended replacement parts shown inthe Parts List of Service Manual may create shock, fire, orother hazards.(4) The leads in the products are routed and
20、 dressed with ties,clamps, tubings, barriers and the like to be separated fromlive parts, high temperature parts, moving parts and/orsharp edges for the prevention of electric shock and firehazard. When service is required, the original lead routingand dress should be observed, and it should be conf
21、irmedthat they have been returned to normal, after reassem-bling.(5) Leakage shock hazard testingAfter reassembling the product, always perform an isola-tion check on the exposed metal parts of the product (an-tenna terminals, knobs, metal cabinet, screw heads,headphone jack, control shafts, etc.) t
22、o be sure the productis safe to operate without danger of electrical shock.Do notuse a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using a“Leakage Current Tester“, measure the leakage currentfrom each exposed metal parts of the cabinet, particular
23、-ly any exposed metal part having a return path to thechassis, to a known good earth ground. Any leakage cur-rent must not exceed 0.5mA AC (r.m.s.). Alternate check methodPlug the AC line cord directly into the AC outlet. Use anAC voltmeter having, 1,000 per volt or more sensitivityin the following
24、manner. Connect a 1,500 10W resistorparalleled by a 0.15F AC-type capacitor between an ex-posed metal part and a known good earth ground.Measure the AC voltage across the resistor with the ACvoltmeter. Move the resistor connection to each exposed metalpart, particularly any exposed metal part having
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