JVC-RXDP20VSL-avr-sm维修电路原理图.pdf

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1、SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED No.22019 2003/10 AUDIO/VIDEO CONTROL RECEIVER 22019200310 RX-DP20VSL TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、 . . . 1-4 2SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . 1-7 4ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 5TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . . . . 1-22 AUDIO/VIDEO CONTROL RECEIVER RX-DP20V STANDBY/ON STANDBY PHONES DIMMER CC CONVERTER DOOR UP DOOR DOWN MASTER VOLUME S-VIDEODIGITALVIDEOLAUDIOR VIDEO CHANNEL TV/VIDEO MUTING DVD DVD TV/DBSVCR 1 AUDIO DVD MULTICD CDR PHONO TAPE/MD EXT 7.1CH ANALOG/DIGITAL CC CONVERTER EFFECT LIV

5、ENESS SOUND TEST THX EX/ES/7.1ANALOG DIRECT SLEEPDIMMER FM MODE DSPSURR/DSPSURROUND RETURN100+ OFF INPUT SET SETUP MENU ADJUST MENU DVD MENU EXIT TEXT DISPLAY 123 456 7/P89 10 +10 0 TV VOL VOLUME PTY SEARCH STOPPAUSE TA/NEWS/INFODISPLAY MODE LIGHT FF/ / REW REC PLAY PTYPTY RM-SRXDP20R REMOTE CONTROL

6、 A/V CONTROL RECEIVER VCR 1VCR 2 FM/AMVIDEOTV/DBS TRANSMIT LEARN LEARN TV CATV/ DBS Area Suffix B - U.K. E - Continental Europe EN - Northern Europe EV - Eastern Europe RadioFans.CN 收音机爱 好者资料库 1-2 (No.22019) SPECIFICATION Amplifier Output Power At Stereo operation (Analog Direct On) Front channels12

7、0 W per channel, min. RMS, driven into 8 , 20 Hz to 20 kHz with no more than 0.02% total harmonic distortion. 120 W per channel, min. RMS, driven into 4 , 20 Hz to 20 kHz with no more than 0.07% total harmonic distortion. 130 W per channel, min. RMS, driven into 8 at 1 kHz, with no more than 0.8% to

8、tal harmonic distortion. (IEC 268-3/DIN) At Surround operation (Analog Direct On) Front channels120 W per channel, min. RMS, driven into 8 , 20 Hz to 20 kHz with no more than 0.02% total harmonic distortion. Center channel120 W, min. RMS, driven into 8 , 20 Hz to 20 kHz with no more than 0.02% total

9、 harmonic distortion. Surround channels120 W per channel, min. RMS, driven into 8 , 20 Hz to 20 kHz with no more than 0.02% total harmonic distortion. Surround back channels 120 W per channel, min. RMS, driven into 8 , 20 Hz to 20 kHz with no more than 0.02% total harmonic distortion. Audio Audio In

10、put Sensitivity /Impedance (1 kHz) PHONO IN (MC):0.25 mV/100 PHONO IN (MM):2.5 mV/47 k CD IN, CDR IN, TAPE/MD IN, EXT 7.1CH IN:200 mV/47 k DVD IN, VCR 1 IN, VCR 2 IN, TV SOUND/DBS IN, VIDEO:200 mV/47 k Audio Input (DIGITAL IN)* Coaxial1(DVD), 2(CD), 3(TV/DBS):0.5 V(p-p)/75 Optical4(CDR), 5(MD), 6(VC

11、R1):-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 kHz) Audio Output LevelPREOUT:1 V Recording Output LevelTAPE/MD OUT, CDR OUT, VCR 1 OUT, VCR 2 OUT:200 mV Digital output Optical:DIGITAL OUT Si

12、gnal wave length:660 nm Output level:-21 dBm to -15 dBm Signal-to-Noise Ratio (66 IHF/78 IHF) (Analog Direct On) PHONO IN (MC):60 dB/72 dB (at REC OUT) PHONO IN (MM):72 dB/80 dB (at REC OUT) CD IN, CDR IN, TAPE/MD IN, EXT 7.1CH IN:92 dB/80 dB :92 dB/80 dBDVD IN, VCR 1 IN, VCR 2 IN, TV SOUND/DBS IN,

13、VIDEO Frequency Response (8 ) PHONO IN (MC) :20 Hz to 20 kHz (1 dB) PHONO IN (MM):20 Hz to 20 kHz (1 dB) CD IN, CDR IN, TAPE/MD IN, EXT 7.1CH IN:10 Hz to 100 kHz (+1 dB, -3 dB) DVD IN, VCR 1 IN, VCR 2 IN, TV SOUND/DBS IN, VIDEO:10 Hz to 100 kHz (+1 dB, -3 dB) RIAA Phono Equalization 1.0 dB (20 Hz to

14、 20 kHz) Video Video Input Sensitivity /Impedance Composite video: DVD IN, VCR 1 IN, VCR 2 IN, TV SOUND/DBS IN, VIDEO 1 V(p-p)/75 S-video: DVD IN, VCR 1 IN, VCR 2 IN, TV SOUND/DBS IN, VIDEO (Y: luminance)1 V(p-p)/75 (C: chrominance, burst)0.286 V(p-p)/75 Component:1 IN (DVD), 2 IN,3 IN(Y: luminance)

15、:1 V(p-p)/75 (PB, PR):0.7 V(p-p)/75 Video Output LevelComposite video:VCR 1 OUT,VCR 2 OUT,MONITOR OUT1 V(p-p)/75 S-video:VCR 1 OUT, VCR 2 OUT, MONITOR OUT(Y: luminance):1 V(p-p)/75 (C: chrominance, burst):0.286 V(p-p)/75 Component:MONITOR OUT(Y: luminance):1 V(p-p)/75 (PB, PR): 0.7 V(p-p)/75 Synchro

16、nizationNegative Signal-to-Noise Ratio45 dB Tuning Range87.5 MHz to 108.0 MHz Usable SensitivityMonaural:17.0 dBf (1.95 V/75 ) 50 dB Quieting Sensitivity Monaural:21.3 dBf (3.2 V/75 ) Stereo:41.3 dBf (31.5 V/75 ) Signal-to-Noise Ratio (IHF-A weighted) Monaural:78 dB at 85 dBf Stereo:73 dB at 85 dBf

17、RadioFans.CN 收音机爱 好者资料库 (No.22019)1-3 Designs furthermore the manufacturer cannot accept responsibility for personal injury or property damage resulting therefrom. (3) Essential safety critical components are identified by ( ) on the Parts List and by shading on the schematics, and must never be rep

18、laced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts in the product have special safety related characteristics. These characteristics are often not evident from visual inspection. Parts other than specified by the manufacturer may not h

19、ave the same safety characteristics as the recommended replacement parts shown in the Parts List of the Service Manual and may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts,

20、 high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling. 1.5.1Warning (1) Se

21、rvice should be performed by qualified personnel only. (2) This equipment has been designed and manufactured to meet international safety standards. (3) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (4) Repairs must be made in accordance with th

22、e relevant safety standards. (5) It is essential that safety critical components are replaced by approved parts. (6) If mains voltage selector is provided, check setting for local voltage. Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such bur

23、rs in the case of preforming repair of this system. 1-6 (No.22019) SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.22019)1-7 SECTION 3 DISASSEMBLY 3.1Main body section 3.1.1Removing the top cover (See Fig.1) (1) Remove the eight screws

24、 A attaching the top cover on both sides of the body. (2) Remove the three screws B on back of the body. (3) Remove the top cover from behind in the direction of the arrow while pulling both sides outward. Fig.1 3.1.2Removing the front panel assembly (See Fig.2 and 3) Prior to performing the followi

25、ng procedure, remove the top cover. (1) Cut off the tie band 1 fixing the harness. (2) Remove the screw a, and remove the lug wire. (3) Remove the three screws C attaching the front panel assembly. (4) Remove the four screws D attaching the front panel assembly on bottom of the body. Detach the fron

26、t panel assembly toward the front. (5) Disconnect the harness from the connector CN971, CN977, CN983 and CN985 on the system control board (see fig.5), CN973 on the front AV in board and CN373 on the front DIGITAL in board (see 2-3.Front panel assembly section/ fig.2). 3.1.3Removing the V compo 2 bo

27、ard & tuner unit & compu link board (See Fig.2 and 4) Prior to performing the following procedure, remove the top cover. (1) Disconnect the harness from the connector CN581 on the V compo 2 board. Remove the two screws E attaching the V compo 2 board to the rear panel. (2) Disconnect the card wire f

28、rom the connector CN1 on the tuner unit. Remove the two screws E attaching the tuner unit to the rear panel. (3) Disconnect the harness from the connector CN301 on the compu link board. Remove the two screws E attaching the compu link board to the rear panel. 3.1.4Removing the Y/C separator board (S

29、ee Fig.2) Prior to performing the following procedure, remove the top cover. (1) Cut off the tie band 2 fixing the harness. (2) Draw out up the Y/C separator board, disconnecting the connectors CN481 and CN482 on the Y/C separator board. Fig.2 Fig.3 A(both sides) A(both sides) B Top cover C a (fixin

30、g the lug wire) Tie band 1 Harness band Tuner unit Compu link board Audio 7.1ch in board V compo 2 board Y/C separator board CN1 C Front panel assembly CN581 CN481 CN482 CN301 CN201 Tie band 2 Tie band 3 Audio signal 1 board D D Front panel assembly 1-8 (No.22019) 3.1.5Removing the audio 7.1ch in bo

31、ard (See Fig.2 and 4) Prior to performing the following procedure, remove the top cover. (1) Cut off the tie band 2 & 3 fixing the harness. (2) Disconnect the harness from the connector CN201 on the audio signal 1 board. (3) Remove the two screws E attaching the audio 7.1ch in board to the rear pane

32、l. 3.1.6Removing the rear panel (See Fig.4) Prior to performing the following procedure, remove the top cover. (1) Unsolder the two solder parts on the AC inlet. (2) Remove the thirty-eight screws E & E & E & E & E attaching each board to the rear panel. (3) Remove the thirteen screws F attaching th

33、e rear panel on the back of the body and bottom. Fig.4 3.1.7Removing the system control board (See Fig.5 and 6) Prior to performing the following procedure, remove the top cover and front panel assembly. (1) Disconnect the card wires and harness from the connector CN963, CN964 and CN981 on the syste

34、m control board. (2) Cut off the tie bands fixing the harness. (3) Disconnect the harness from the connector CN45 on the power supply 2 board and CN25 on the power/ fuse board. (4) Disconnect the connector CN324 on the audio signal 2 board and CN234 on the audio signal 1 board. (5) Remove the three

35、plastic rivet. Fig.5 Fig.6 E F E E FF F F Rear panel Red Black EE EEE E E F Solder part AC inlet CN963 CN981 CN971 CN977 CN983 CN964 CN985 System control board Plastic rivet Plastic rivet CN324 CN25 CN234 CN224 CN45 (on power supply 2 board) Power/ fuse board Audio signal 1 board Audio signal 2 boar

36、d CN203 Tie band Tie band (No.22019)1-9 3.1.8Removing the DSP board & shield cover (See Fig.7) Prior to performing the following procedure, remove the top cover, rear panel and front panel assembly. (1) Disconnect the connector CN631 on the DSP board. (2) Disconnect the connector CN203 on the audio

37、signal 1 board. And cut off the tie bands fixing the harness. (3) Removing the two plastic rivet, and disconnect the connector CN633, CN643 and CN635 on the DSP board. (4) Removing the screw G attaching the shield cover and remove the shield cover. Fig.7 3.1.9Removing the audio signal 1 board (See F

38、ig.8) Prior to performing the following procedure, remove the top cover, rear panel and DSP board. (1) Disconnect the harness from the connector CN202, CN204, CN234, CN224, CN207 and CN223 on the audio signal 1 board. (2) Remove the plastic rivet. (3) Disconnect the connector CN205, CN221 and CN206

39、on the audio signal 1 board. Fig.8 Shield cover Top view CN631 CN635 CN643 Plastic rivet DSP board G CN203 CN633 Audio signal 1 board Audio signal 1 board CN234 Plastic rivet CN224 CN204 CN202 CN205 CN221 CN206 CN223 CN207 1-10 (No.22019) 3.1.10 Removing the audio signal 2 board & video board & S vi

40、deo board (See Fig.9 to 11) Prior to performing the following procedure, remove the top cover, rear panel, Y/C separator board, DSP board and audio signal 1 board. (1) Disconnect the harness from the connector CN973 on the front AV in board (see 2-3.Front panel assembly section/ fig.2). (2) Disconne

41、ct the harness from the connector CN324 on the audio signal 2 board. (3) Remove the audio signal 2 board from the connector CN15 and CN6 on the input base board. (4) Remove the video board from the connector CN7 on the input base board. (5) Remove the S video board from the connector CN8 on the inpu

42、t base board. 3.1.11 Removing the V compo 1 board (See Fig.9 to 11) Prior to performing the following procedure, remove the top cover and rear panel. (1) Remove the V compo 1 board from the connector CN9 on the input base board. Fig.9 Fig.10 Fig.11 Video board V compo 1 board Audio signal 2 board S

43、video board CN324 Input base board FRONT Connection between the Input base board and each board. CN15/CN6 CN7 CN8 CN9 Audio signal 2 board (CN325/CN321) Video board (CN401) S video board (CN451) V compo 1 board (CN501) Input base board CN15 CN6 CN7 CN8 CN9 FRONT (No.22019)1-11 3.1.12 Removing the in

44、put base board (See Fig.12) Prior to performing the following procedure, remove the top cover, rear panel, DSP board, audio signal 1 board, audio signal 2 board, video board, S video board and V compo 1 board. (1) Disconnect the harness from the connector CN62 on the power supply 1 board and CN44 on

45、 the power supply 2 board. And cut off the tie bands fixing the harness. (2) Disconnect the harness from the connector CN 743 on the speaker board. (3) Disconnect the card wire from the connector CN1, CN2 and the harness from the connector CN11 on the input base board. (4) Remove the seven screws H

46、attaching the input base board. 3.1.13 Removing the speaker board (See Fig.12) Prior to performing the following procedure, remove the top cover and rear panel. (1) Disconnect the harness from the connector CN741, CN742 and CN743 on the speaker board. Fig.12 3.1.14 Removing the power supply 1 board

47、(See Fig.13) Prior to performing the following procedure, remove the top cover. (1) Disconnect the harness from the connector CN61, CN62, CN63, CN64 and CN65 on the power supply 1 board. (2) Disconnect the harness from the connector CN44 and CN45 on the power supply 2 board. (3) Remove the six screw

48、s I attaching the power supply 1 board. Fig.13 CN743 CN742 CN741 Speaker board Input base board Power supply 1 board H H CN44 (on the power supply 2 board) CN62 CN2 CN1 CN11 CN63 CN64 CN62 CN44/CN45 (on the power supply 2 board) CN65 CN61 (fixing the lug wire) Power supply 1 board II 1-12 (No.22019)

49、 3.1.15 Removing the power transformer 1 with the power supply 2 board (See Fig.14) Prior to performing the following procedure, remove the top cover and power supply 1 board. (1) Disconnect the harness from the connector CN46 and CN47 on the power supply 2 board. (2) Remove the two screws J attaching the power transformer 1. 3.1.16 Removing the thermal SW 1 board (See Fig.14) Prior to performing the following procedure, remove the top cover and power supply 1 board. (1) Remove the screw K a