Jvc-KSFX-945-R-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITED No.49875 2003/6 CASSETTE RECEIVER 4987520036 KS-FX945R TABLE OF CONTENTS 1PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2SP

2、ECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 3DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 4A

3、DJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 5TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . 1-24 6DESCRIPTION OF MAJOR ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 SOUND VOLVOL SOURCERF U D ATT Area Suffix EE - Russian Federation RadioFans.CN 收音机爱 好者资料库 1-2 (No.49875) SPECIFICATION Design and specifications

5、 are subject to change without notice. AUDIO AMPLIFIER SECTION Maximum Power Output Front50 W per channel Rear50 W per channel Continuous Power Output (RMS) Front19 W per channel into 4 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Rear19 W per channel into 4 40 Hz to 20 000 Hz

6、at no more than 0.8% total harmonic distortion. Load Impedance4 (4 to 8 allowance) Tone Control Range Bass10 dB at 100 Hz Treble10 dB at 10 kHz Frequency Response40 Hz to 20 000 Hz Signal-to-Noise Ratio70 dB Line-Out Level/Impedance2.0 V/20 k load (250 nWb/m) Output Impedance1 k TUNER SECTIONFrequen

7、cy RangeFM1/FM287.5 MHz to 108.0 MHz FM365.00 MHz to 74.00 MHz AM(MW) 522 kHz to 1 620 kHz (LW) 144 kHz to 279 kHz FM TunerUsable Sensitivity11.3 dBf (1.0 V/75 ) 50 dB Quieting Sensitivity16.3 dBf (1.8 V/75 ) Alternate Channel Selectivity (400 kHz) 65 dB Frequency Response40 Hz to 15 000 Hz Stereo S

8、eparation30 dB Capture Ratio1.5 dB MW TunerSensitivity20 V Selectivity35 dB LW TunerSensitivity50 V CASSETTE DECK SECTION Wow H means a station is there. L means the program is stereo. 54NC-Not use 55MONOOMonaural selection output ; H means monaural 56 to 60NC-Not use 61DETACHIDetach detect input ;

9、H means detaching 62AFCKOAF check output 63SEEK/STOPOAuto seek and stop selecting output ; H means seeking L means receiving. 64IFC CONTOIFC control output 65FM/AMOFM AM band selecting output ; H = FM L= AM 66PLL-CEOCE output for PLL IC 67PLL-DOOData output for PLL IC 68PLL-CLKOClock output for PLL

10、IC 69PLL-DIIData input from PLL IC 70TEL-MUTINGITelephone muting detection input ; Active level can be selected H or L in PSM 71NC-Not use 72VSS-GND 73DIMMER INIDimmer detector input L=dimmer on 74PS1IPower save1 L= ACC off 75POWEROPOWER ON/OFF control output H=power on 76NC-Not use 77MUTINGOMuting

11、output L=muting on 78 to 80NC-Not use 81VDD-Micon power supply 82NC-Not use 83VOL-DAOData output for e-vol IC 84VOL-CLKOClock output for e-vol IC 85 to 89NC-Not use 90STAGE1IFeature selection 91MOTOROMain motor control H:Motor drive 92FF/REWOAudio level control for MS H:Play mode L:FF/REW mode 93HEA

12、D SEL(F/R)OAudio signal selector for head amp H:REV L:FWD 94TESTFor rewriting flash memory 95DOLBYODolby ON/OFF control H:Dolby on 96MS INIMS signal input L:no music 97REELIReel pulse signal input (Pulse signal) 98SUBMO-OSub motor control. Eject direction 99SUBMO+OSub motor control. Loading directio

13、n 100MODEIMecha position detection signal Pin NoSymbolI/OFunction 1-36 (No.49875) 6.13 TEA6320T-X (IC161) : E.volume Pin layout Block diagram Pin functions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 SDA GND OUTLR OUTLF TL B2L B1L IVL ILL QSL IDL MUTE ICL I

14、MD IBL IAL SCL VCC OUTRR OUTRF TR B2R B1R IVR ILR QSR IDR Vref ICR CAP IBR IAR CD-CH TAPE TUNER POWER SUPPLY SOURCE SELECTOR VOLUME 1 +20 to -31 dB LOUDNESS LEFT BASS LEFT +15 dB TREBLE LEFT +12 dB BASS RIGHT +15 dB TREBLE RIGHT +12 dB MUTE FUNCTION ZERO CROSS DETECTOR VOLUME 2 0 to 55 dB BALANCE FE

15、NDER REAR VOLUME 2 0 to 55 dB BALANCE FENDER FRONT HC BUS REC VOLUME 2 0 to -55dB BALANCE FENDER FRONT VOLUME 2 0 to -55dB BALANCE FENDER REAR VOLUME 1 +20 to -31 dB LOUDNESS RIGHT LOGIC 21 31 2 19 16 15 13 11 22 20 18 17 14 23252426 2728 30 29 1 32 3 4 108976512 Pin No. SymbolI/OFunctions 1SDAI/OSe

16、rial data input/output. 2GND-Ground. 3OUTLROoutput left rear. 4OUTLFOoutput left front. 5TLITreble control capacitor left channel or input from an external equalizer. 6B2L-Bass control capacitor left channel or output to an external equalizer. 7B1L-Bass control capacitor left channel. 8IVLIInput vol

17、ume 1. left control part. 9ILLIInput loudness. left control part. 10QSLOOutput source selector. left channel. 11IDL -Not used 12MUTE-Not used 13ICLIInput C left source. 14IMO-Not used 15IBLIInput B left source. 16IALIInput A left source. 17IARIInput A right source. 18IBRIInput B right source. 19CAP-

18、Electronic filtering for supply. 20ICRIInput C right source. 21Vref-Reference voltage (0.5Vcc) 22IDR-Not used 23QSROOutput source selector right channel. 24ILRIInput loudness right channel. 25IVRIInput volume 1. right control part. 26B1R-Bass control capacitor right channel 27B2ROBass control capaci

19、tor right channel or output to an external equalizer. 28TRITreble control capacitor right channel or input from an external equalizer. 29OUTRFOOutput right front. 30OUTRROOutput right rear. 31Vcc-Supply voltage. 32SCLISerial clock input. Pin No. SymbolI/OFunctions (No.49875)1-37 SCHEMATIC DIAGRAMS K

20、S-FX945R Contents CD-ROM No.SML200306 SOUND VOLVOL SOURCERF U D ATT CASSETTE RECEIVER No.49875SCH 2003/06 COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. KS-FX945R Block diagram Standard schematic diagrams Printed circuit boards 2-1 2-2 2-5 to 7 Area Suffix EE - Russian Federation KS-FX945R 2-4 ! Burrs

21、 formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Safety precaution KS-FX945R 2-1ABCDEFG 1 2 3 4 5 Block diagram CN601 IC801 JVC BUS HEAD IC401 PB EQ IC301 POWER AMP. IC161 E.VOLUME IC31 PLL I

22、C701 MAIN SYSTEM CONTROL CPU TU1 AM/FM TUNER PACK SUB MOTOR IC402 DC MOTOR DRIVER MAIN MOTOR SWITCH TAPE END.STANDBY SEEK/STOP SD/ST,SM FM/AM,MONO AM Vt,FM Vt FM/AM OSC PLL CE PLL CL PLL DA PLL DI LCDDA LCDCL LCDCE ENC1,ENC2 REMOCON JBUSSI JBUSSO JBUSIO JBUSSCK SCK SI/SO CH.L CH.R TU.L TU.R OUTLR OU

23、TRR OUTLF OUTRF L/R F L/R R LRO RRO CP401 J801CP901 J321 KEY 0 to 2 CN701 TAPE.L TAPE.R F/R MODE STANDBY FF/REW MOTOR SUBMO+ SUBMO- TAPEIN DOLBY MS REEL SUBMO+ SUBMO- SUBMO+ SUBMO- FWD-L FWD-R REW-L REW-R F/R MSOUT LCH RCH FF/REW MOTOR TAPEIN MODE STANDBY REEL PHOTO CN401 CN403CN402 J1 AM FM TO CD C

24、HANGER TO SPEAKER CONNECTORTO REAR LINE OUT Main amp section Head amp section AFCK LCD1 IC601 LCD DRIVER COM1 to COM3 S1 to S68 LCDDA LCDCL LCDCE KEY MTRIX S601 to S617 IC602 REMOCON RECEIVER EN601 ROTARY ENCODER KEY0 to KEY2REMOCONENC1,ENC2 KS-FX945R 2-2 KS-FX945R HABCDEFG 1 2 3 4 5 TAPE signal Tun

25、er signal CD changer signal Front signal Rear signal Parts are safety assurance parts. When replacing those parts make sure to use the specified one. Standard schematic diagrams Main amp section To Head amp section CN401 To LCD DISP () SSM MODE. a TP PTY ( / ) s TAG ( ID3), (), (/) MP3 CD- - JVC, MP

26、3. d “ ” f g () -. () MP3 - JVC, MP3. h / j RND () -. k EQ () l (C-EQ: ) ROCK, CLASSIC, POPS, HIP HOP , JAZZ, USER / (Dolby B) z MO (), ST () x LOUD () c RDS AF, REG, TP, PTY v MP3 MP3 - JVC, MP3. b ( ) n RPT () yew9qra;uiop 51 243678 klzvb fghsd t j ncx/ RU02-04KS-FX945REEf.p653/20/03, 2:55 PM4 5 C

27、CK 3 ( DAB). , ( ). MP3 -, MP3; . . : - - . 4 , . : . 5 (C-EQ: ). (C-EQ) . 6 . . 7 . DAB, . DAB, 1 . . 2. Multi Music Scan. 2. -. / ( ) -. 1 , , . , , “SEE YOU” (“ ”). , . , . 2 ( DAB). . . . MP3 -, MP3; . . : - - . SOUND VOLVOL SOURCERF U D ATT RU05-06KS-FX945REEf.p653/20/03, 2:55 PM5 6 CCK , : , .

28、 , . ( ). , , , . 1. . 1) , , . 2) . 2. . +, , , . ( : CR2025) ( ) 3. . , . : , . , . , , , . , , . . , , . ; , , . . , , . : ( ), . . ( ) RU05-06KS-FX945REEf.p653/20/03, 2:55 PM6 7 CCK 1 . : 2 , . , . 2 . , (FM ), 9 18. , , 19 22. - - 30 34. (LINE IN) 35. DAB 36 39. 3 . 4 , . ( 23 24). . “” , . , ,

29、 . . 1 . “SEE YOU” ( ), . ( ) ( 27) . 312 RU07-08KS-FX945REEf.p653/20/03, 2:55 PM7 8 CCK 24 , 12 . 1 SEL () 2 , PSM. (PSM: y 26). 2 . 1 “CLOCK H” ( ), . 2 . 12 3 . 1 “CLOCK M” ( ). 2 . 12 4 . 1 “24H/12H” (24/12). 2 “24H” (24 ) “12H” (12 ). 12 5 . : . . 27. , DISP (). . ( . . 27). DISP () 5 . RU07-08

30、KS-FX945REEf.p653/20/03, 2:55 PM8 9 CCK , , . , , , , . : 1 (FM1 3, AM). : : FM (FM1, FM2, FM3). FM1/FM2: 87,5 108,0 FM3:65,00 74,00 2 4 , “MANU” (). . : 1 (FM1 3, AM). : * “CLOCK” () “ON” (.) (. . 27), . : FM (FM1, FM2, FM3). FM1/FM2: 87,5 108,0 FM3:65,00 74,00 2 . *. FM- . , , FM 1 (F1) FM 2 (F2)

31、FM 3 (F3) A M FM 1 (F1) FM 2 (F2) FM 3 (F3) A M RU09-11KS-FX945REEf.p653/20/03, 2:55 PM9 10 CCK : FM: SSM ( ) , FM, FM: SSM 6 FM FM (FM1, FM2 FM3). 1 FM (FM1 3), FM. : 2 2 . FM , (FM1, FM2 FM3). 1 ( ) 6 ( ). , 1. “- -SSM- -” , , . 3 , , “MANU” (). , 5 . , : 50 (87,5 108,0 FM 1 FM 2), 30 (65,00 74,00

32、 FM 3) 9 AMMW/LW, . FM: 1 MODE, FM. “MODE” . 2 “MODE” , MO (), MO. MO , . MO, , , , . MO () FM 1 (F1) FM 2 (F2) FM 3 (F3) A M RU09-11KS-FX945REEf.p653/20/03, 2:55 PM10 11 CCK 6 (FM1, FM2, FM3 AM) . .: , FM 92,5 1 FM1. 1 (FM1 3, AM), ( FM1). : 2 ( 92,5 ). 3 ( 1) 2 . 4 , . : , . , (, ). , . . , . , “

33、” 10 11. 1 (FM1 3, AM). : 2 (1 6) , . “MEMO” (). FM 1 (F1) FM 2 (F2) FM 3 (F3) A M FM 1 (F1) FM 2 (F2) FM 3 (F3) A M RU09-11KS-FX945REEf.p653/20/03, 2:55 PM11 12 CCK RDS RDS RDS ( ) FM . , , , , , . RDS , “Enhanced Other Networks” (“ ”). , , , , , , . RDS : (- ) TA ( ) PTY ( ) (- ) FM, RDS, . , , .

34、( 18). - RDSPI ( ) AF ( ). RDS, , - . , - - , . “AF” . AF:- , “off” (). , , , . ( , ). AF , REG . AF REG: - , “on” (). , , , , . AF, REG. OFF:- . AF, REG. : DAB ( DAB), - AF. , - , . ( 39). AF REG RU12-18KS-FX945REEf.p653/20/03, 2:55 PM12 13 CCK 1 SEL () 2 , PSM. (PSM: y 26). 2 “AF-REG” ( / ) . 3 “A

35、F” , “AF REG” “OFF” . 4 . () ( FM, ). , , . TP PTY . 7 FM, . , . - , “TRAFFIC” ( ), . ( 17), . , , , . , , . 4 , . , , P . . 7 FM, . - , “TRAFFIC” ( ), . , TP PTY . TP . RU12-18KS-FX945REEf.p653/20/03, 2:55 PM13 14 CCK 4 . 7 FM, PTY . PTY , PTY . - PTY , . PTY , PTY , , PTY . PTY , , . 4 , . , , PTY

36、 . PTY . 7 FM, PTY . - PTY , . PTY, “OFF” () 3 . PTY . PTY PTY (PTY: ) ( FM, ). PTY , , . PTY . PTY . ( PTY “OFF” (). 1 SEL () 2 , PSM. (PSM: y 26). 2 “PTY STBY” (), . 3 PTY. ( 18). . RU12-18KS-FX945REEf.p653/20/03, 2:55 PM14 15 CCK PTY . 6 . 6 (1 6). , . , c 16. 1 TP PTY 2 , FM. 2 PTY. ( 18). . 3 2

37、 , PTY , . “MEMO” (). 4 / TP PTY 2 . PTY . POP M 123 ROCK MEASY M 456 CLASSICSAFFAIRSVARIED RU12-18KS-FX945REEf.p653/20/03, 2:55 PM15 16 CCK , PTY , , . , PTY , , . : PTY . RDS , . , RDS, . , AF , . ( ) , . , , . “ (PSM)” 25. 1 SEL () 2 , PSM. 2 4 , “P()-SEARCH” . 3 , “ON” (). . 4 SEL (), . , “OFF”

38、() 3 . 1 TP PTY 2 , FM. 2 - PTY 3 4 , PTY . .: “ROCK M” PTY . , PTY . RU12-18KS-FX945REEf.p653/20/03, 2:55 PM16 17 CCK “ (PSM)” 25. 1 SEL () 2 , PSM. 2 4 , “TA VOL ” ( TA). 3 , . “VOL 00” “VOL 50” . 4 SEL (), . , CT ( ) RDS. , . “ (PSM)” 25. 1 SEL () 2 , PSM. 2 4 , “AUTO ADJ” ( ). 3 , “OFF” (). . 4

39、SEL (), . , “ON” () 3, . : 2 , “AUTO ADJ” ( ) “ON” (). . ( , 2 , CT RDS). FM (PS NAME) (FREQ) , - FM RDS. “ (PSM)” y 25. 1 SEL () 2 , PSM. 2 4 , “TU DISP” ( ). 3 , (“PS NAME” ( ) “FREQ” (). 4 SEL (), . : DISP (), FM RDS. : . . “ CLOCK” 27. . , . (PS NAME) (FREQ) (PTY) RU12-18KS-FX945REEf.p653/20/03,

40、 2:55 PM17 18 CCK PTY NEWS: AFFAIRS: , INFO:, SPORT: EDUCATE: DRAMA: CULTURE: SCIENCE: VARIED: , POP M:- ROCK M:- EASY M: LIGHT M: CLASSICS: OTHER M: WEATHER: FINANCE: , , . CHILDREN: SOCIAL: - RELIGION:, , , PHONE IN:, , TRAVEL: , , LEISURE:, , , , . JAZZ: COUNTRY: NATION M: OLDIES: - FOLK M: DOCUMENT: ,