JVC KS-F171G Service Manual Download Page 24

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2-4

Head amplifier section

CP722

CP721

IC901

C203

C103

CJ901

R204

R104

C901

CP901

C201

C101

C202

C102

R203

R103

C204

C104

R201

R101

C205

C105

R901

QGA2002F1-06

QGB1214K1-06S

UPC1228HA

100p

QGA2002C1-05

330k

QGB1214K1-06S

820p

0.47/50

100

47/6.3

15k

0.01

100/10

100

Summary of Contents for KS-F171G

Page 1: ...NY OF JAPAN LIMITED No MA007 2003 8 CASSETTE RECEIVER MA007 2003 8 KS F171G TABLE OF CONTENTS 1 PRECAUTIONS 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 5 4 ADJUSTMENT 1 13 5 TROUBLE SHOOTING 1 17 S BASS SEL DISP Area Suffix UN Asean ...

Page 2: ...b m Bagian Radio Batas Frekuensi FM 87 5 MHz hingga 108 0 MHz AM 531 kHz hingga 1 602 kHz Radio FM Sensitivitas yang dapat digunakan 11 3 dBf 1 0 µV 75 Ω 50 dB Sensitivitas Ketenangan 16 3 dBf 1 8 µV 75 Ω Selektivitas Chanel Alternatif 400 kHz 65 dB Respon Frekuensi 40 Hz hingga 15 000 Hz Pemisah Stereo 35 dB Rasio penangkapan 2 0 dB Radio AM Sensitivitas 20 µV Selektivitas 35 dB Bagian Dek Kaset ...

Page 3: ...7 1 3 SECTION 1 PRECAUTION 1 1 Safety Precautions Burrs 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 ...

Page 4: ...1 4 No MA007 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS ...

Page 5: ... on the right side and the joint c on the back of the body then remove the bottom cover from the body CAUTION When releasing the joint c using a screwdriver do not damage the board Fig 2 3 1 3 Removing the front chassis See Fig 3 Prior to performing the following procedure remove the front panel assembly and bottom cover 1 Remove the screw A on each side of the body 2 Release the two joints d and ...

Page 6: ...ront panel assembly and bottom cover 1 Remove the two screws D one screw E and three screws F attaching the rear panel on the back of the body Fig 5 3 1 6 Removing the main board See Fig 6 Prior to performing the following procedure remove the front panel assembly bottom cover front chassis heat sink and rear panel 1 Remove the two screws G attaching the main board on the top chassis 2 Disconnect ...

Page 7: ...lifier board 2 Remove the one screw J attaching the head amplifier board 3 Move the head amplifier board in the direction of the arrow to release the two joints f the head amplifier board can be removed Fig 8 3 1 9 Removing the relay board See Fig 9 Prior to performing the following procedure remove the front panel assembly bottom cover front chassis heat sink rear panel main board and cassette me...

Page 8: ...attaching the mecha bracket Fig 10 3 1 11 Removing the switch LCD key board See Fig 11 13 Prior to performing the following procedure remove the front panel assembly 1 Remove the four screws M attaching the rear cover on the back of the front panel assembly 2 Release the eleven joints h the front panel and the rear cover become separate 3 Remove the switch board from the rear cover Fig 11 Fig 12 F...

Page 9: ...ove the direc tion switch board and the FF REW lever assembly 1 Remove the screw D attaching the playback head 2 Remove the C washer and pull out the FF roller 3 Remove the S support plate the A arm spring a and b the playback head ATTENTION The A arm spring a differs from the A arm spring b 3 2 5 Removing the pinch roller R and F assembly See Fig 2 Prior to performing the following procedure remo...

Page 10: ...y See Fig 4 Prior to performing the following procedure remove the FF REW lever assembly and the cassette hanger cassette hold er 1 Remove the C washer and pull out reel disc assembly ATTENTION Replace with a new C washer when reattaching Fig 4 3 2 8 Removing the motor assembly See Fig 5 1 Unsolder the two wires j on the motor assembly 2 Turn over the cassette mechanism assembly and remove the mai...

Page 11: ...he reel base assembly See Fig 5 and 6 1 Raise the part k of the reel base assembly slightly and re move the selector link B on the front side of the cassette mechanism assembly by turning it as shown in Fig 6 2 Remove the three screws E and the one screw F on the underside of the cassette mechanism assembly ATTENTION The reel base assembly is not repairable Handle with care Fig 6 Fig 7 Reel disc a...

Page 12: ...rd Fig 8 3 2 12 Removing the power switch See Fig 9 Prior to performing the following procedure remove the motor assembly 1 Unsolder the two wires m on the power switch on the side of the cassette mechanism assembly 2 Remove the screw I attaching the power switch Fig 9 Cassette mechanism assembly Soldering l H Mute switch board Rower switch Motor assembly Soldering m I Power switch Cassette mechan...

Page 13: ...dard volume position Balance and Bass Treble volume Fader Center Indication 0 Loudness Dolby NR Sound Cruise Off Volume position is about 2V at speaker output with following conditions Playback the test tape VT721 Measuring conditions Amplifier section Power supply voltage DC14 4V 11V to 16V allowance Load impedance 4Ω 4Ω to 8Ω allowance Line out level Impedance 1 0V 20k load 250 nWb m AM mode 999...

Page 14: ...ve the heat sink 5 Remove the rear panel 6 Remove the main board 7 Reattach the heat sink with the two screws D Refer to DISASSEMBLY 8 Reattach the rear panel with the screw G Refer to DISASSEMBLY 9 Reattach the front chassis assembly with the screw B Refer to DISASSEMBLY 10 Reattach the front panel assembly 11 Confirm that current is being carried by connecting an extension cord jig NOTE Availabl...

Page 15: ...g test points Playback head Head azimuth screw Fixed screw Height adjusting screw c Height adjusting screw b Height adjusting screw a Head section view Cassette mechanism Surface Tape speed adjust Motor assembly Playback head Azimuth screw ...

Page 16: ...de Adjust the Rch and Lch output levels to max with azimuth adjustment screw B In this case the phase difference should be within 45 3 Engage the reverse mode and adjust the output lev el to max with azimuth adjustment screw C The phase difference should be 45 or more 4 When switching between forward and reverse modes the difference between channels should be within 3dB Between FWD L and R REV L a...

Page 17: ... No MA007 1 17 SECTION 5 TROUBLE SHOOTING This service manual does not describe TROUBLE SHOOTING ...

Page 18: ... No MA007 AV MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan VICTOR COMPANY OF JAPAN LIMITED WPC Printed in Japan ...

Page 19: ...IO KASET No MA007SCH 2003 9 COPYRIGHT 2003 VICTOR COMPANY OF JAPAN LTD KS F171G Area Suffix UN Asean Contents Block diagram Standard schematic diagrams Printed circuit boards 2 1 2 2 2 5 6 CD ROM No SML200309 S BASS SEL DISP ...

Page 20: ...2 4 Burrs 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 ...

Page 21: ... control board AM PROG SW ANT IC981 POWER AMP IC931 E VOL IC901 HEAD AMP TO SPEAKER CONNECTOR LCD1 IC651 LCD DRIVER KEY S601 S606 S608 S612 S614 S621 DATA CLOCK CE IC701 MICON TU1 AM FM TUNER PACK SK ST MONO SD ST S METER FM OSC EO BAND IFC C IFC C DI CL CE TAPEIN PROG Main amplifier section CP721 Relay board CP722 CN721 CP981 CJ921 LFO LFO RFO RFO LRO RRO CN901 CP901 CJ901 HEAD CJ701 CP701 LCD SO...

Page 22: ...KRA102M T 1SS119 041 47K 22 16 KRC102M T 1SS119 041 12K 6 8 0 01 470P LC72362N 9B39 3 3K 4 7K 10 27K 27K 470P 3 3K 470P 470P 10 16 47k 0 1 47k 47k 4 7 25 4 7K QNN0519 001 47K 10 16 2 7K 10 16 10 KRA102M T 47k 3 3K KRC102M T 47K 3 3K KRC102M T 1K QAU0281 001 27K 27K QMFZ047 150 T 2SA1706 ST T KTA1267 YG T KTC3199 GL T KTC3199 GL T 2 2 50 0 001 1K 10K 1 5K 1K 0 1 2200 16 1N5401 TM 0 1 820 100 100 82...

Page 23: ...7 D615 R642 D614 R641 D613 D611 D612 R640 R639 D607 R638 R637 R636 D608 D604 C654 D605 R657 D606 R658 D602 D603 D601 D618 D657 D610 R653 R655 R656 R654 R635 OSC INH DATA CE CLOCK S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17 COM3 COM2 COM1 KEY0 KEY1 CLOCK REMOCON 14V LAMP DATA 5V R5V KEY2 DETACH SW4 SW5 SW6 SW7 SW8 SW9 SW10 SW11 SW12 SW13 SW14 SW15 SW16 SW17 SW18 SW19 SW20 SW21 SW22 SW23...

Page 24: ...3 CJ901 R204 R104 C901 CP901 C201 C101 C202 C102 R203 R103 C204 C104 R201 R101 C205 C105 R901 QGA2002F1 06 QGB1214K1 06S UPC1228HA 100p 100p QGA2002C1 05 330k 330k QGB1214K1 06S 820p 820p 0 47 50 0 47 50 100 100 47 6 3 47 6 3 15k 15k 0 01 0 01 100 10 100 ...

Page 25: ...2 Q783 Q784 Q789 Q971 Q972 R1 R2 R3 R4 R5 R6 R7 R9 C786 R14 R15 R17 R51 R52 R972 R61 R62 R131 R132 R994 C942 R992 C940 R163 R164 R165 R231 R232 R993 C941 R991 C943 R263 R264 R265 Q989 R702 R703 CN901 R707 R708 R709 R710 R712 R713 R714 C709 R715 C710 R718 R719 R720 R721 R722 CJ921 R724 R725 R726 R727 R751 R752 R753 R754 R755 R756 R757 R758 R759 R760 R761 R762 R763 R764 R771 R772 R773 R774 R797 R783...

Page 26: ...S601 S606 S609 S610 S611 S612 S602 S603 S604 S608 S605 S614 S615 S616 S617 S618 S619 S620 LCD1 S621 R618 C651 C652 C653 C654 CP701 PL601 D652 D653 D654 D655 D657 IC651 IC652 R601 R604 R605 R607 R614 R635 R636 R637 R638 R639 R640 R641 R642 R643 R644 R645 R646 R647 R648 R649 R651 R652 R653 R654 R655 R656 R657 R658 PL603 CP901 IC901 C104 C204 R103 R203 C105 C205 C101 C201 R104 R204 C103 C203 R101 R20...

Page 27: ...2 7 M E M O ...

Page 28: ... No MA007SCH Printed in Japan WPC VICTOR COMPANY OF JAPAN LIMITED AV MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan ...

Page 29: ...ervice parts Contents Exploded view of general assembly and parts list Block No M1 Cassette mechanism assembly and parts list Block No MP Electrical parts list Block No 01 03 Packing materials and accessories parts list Block No M3 KS F171G 3 2 3 4 3 8 3 12 Area suffix UN Asean MA007 ...

Page 30: ...st Main board B A B A Front board 7 3 4 1 2 5 6 3 3 4 8 9 11 11 11 11 12 15 12 16 17 18 19 13 13 14 55 56 53 14 20 21 22 23 24 25 26 28 29 27 30 31 33 32 34 35 58 37 38 39 40 41 42 43 44 43 48 50 46 45 49 47 52 51 54 Block No M M M 1 57 16 36 10 LCD1 ...

Page 31: ... GE10051 004A FRONT PANEL 25 GE30584 018A FINDER ASSY 26 FSJK3014 001 LIGHT LENS 27 GE20119 001A PRESET BUTTON 28 FSYH4036 077 SHEET 29 GE30304 001A POWER BUTTON 30 GE20131 023A D FUNC BUTTON 31 GE30307 001A SND FUNC BUTTON 32 FSYH4036 032 SHEET 33 GE20130 033A PUSH BUTTON 34 GE20120 002A UP DOWN BUTTON 35 GE20118 002A BUTTON 36 FSXP3066 001 FF BUTTON 37 FSKW3002 003 COMP SPRING 38 FSKW3002 003 CO...

Page 32: ...4 72 30 66 109 120 89 57 2 123 96 23 69 61 47 31 119 45 46 109 67 58 118 106 5 6 8 3 110 25 68 61 19 109 20 22 62 83 76 71 107 121 53 107 21 78 79 35 97 1 117 7 77 105 116 93 114 115 50 48 82 101 95 117 85 15 80 16 86 87 106 26 94 122 38 106 37 107 41 39 44 63 109 54 42 70 107 9 74 117 4 43 73 40 10 ...

Page 33: ...6 3018S COLLER 57 1 0363 3007S HP ROLLER A 58 1 0363 3011S PROGRAM ROLLER 61 1 0036 4001S FF REW LEVER SP 62 1 0036 4002S LOCK LEVER SPG 63 1 0036 4003S GEAR LOCK ARM S 65 1 0036 4006S HEAD PLATE SPG 66 1 0036 4007S EJ CAM LOCK SPG 67 1 0036 4008S PROGRAM ARM SPG 68 1 0036 4010S ADJUST ARM SP A 69 1 0036 4011S ADJUST ARM SP B 70 1 0036 4015S DASH SPG 71 1 0036 4017S CHANGING ARM SP 72 1 0036 4023S...

Page 34: ...3 6 Grease point 1 2 FL 942 SW 902 SW 522B FG 84M C68 CFD 409 Grease Reverse side A 1 2 72 24 ...

Page 35: ...3 7 Grease point 2 2 12 35 5 30 20 19 3 16 38 42 43 4 39 37 15 ...

Page 36: ... CAPACITOR 0 15uF 50V J C238 QFVD1HJ 154Z MF CAPACITOR 0 15uF 50V J C250 QERF1HM 225Z E CAPACITOR 2 2uF 50V M C260 QERF1HM 225Z E CAPACITOR 2 2uF 50V M C701 QDUB1HJ 270Y C CAPACITOR 27pF 50V J C702 QDCB1HJ 220Y C CAPACITOR 22pF 50V J C703 QERF0JM 107Z E CAPACITOR 100uF 6 3V M C704 QFVD1HJ 224Z MF CAPACITOR 0 22uF 50V J C705 QERF1CM 106Z E CAPACITOR 10uF 16V M C706 QDYB1CM 103Y C CAPACITOR 0 01uF 1...

Page 37: ...L781 QQL231K 470Y INDUCTOR I M 47uH K L782 QQL231K 470Y INDUCTOR I M 47uH K L783 QQL231K 470Y INDUCTOR I M 47uH K L981 QQR1367 001 CHOKE COIL VYH7653 002 IC HOLDER CJ701 VMC0334 001 CONNECTOR CJ921 QNN0519 001 PIN JACK CN721 QGB1214J1 06S CONNECTOR B B 1 6 CN901 QGB1214J1 06S CONNECTOR B B 1 6 CP981 QNZ0611 001 16P CONNECTOR J1 QNZ0009 001 CAR ANT JACK TU1 QAU0281 001 TUNER PACK Symbol No Part No ...

Page 38: ...APACITOR 0 47uF 50V M C103 QCBB1HK 101Y C CAPACITOR 100pF 50V K C104 QEKJ0JM 476Z E CAPACITOR 47uF 6 3V M C105 QFV61HJ 103Z MF CAPACITOR 0 01uF 50V J C201 QDGB1HK 821Y C CAPACITOR 820pF 50V K C202 QERF1HM 474Z E CAPACITOR 0 47uF 50V M C203 QCBB1HK 101Y C CAPACITOR 100pF 50V K C204 QEKJ0JM 476Z E CAPACITOR 47uF 6 3V M C205 QFV61HJ 103Z MF CAPACITOR 0 01uF 50V J C901 QEKJ1AM 107Z E CAPACITOR 100uF 1...

Page 39: ...3 11 MEMO ...

Page 40: ...3 12 Packing materials and accessories parts list P7 P2 P5 P8 P3 P4 P6 P7 A8 KIT A3 A4 A7 A5 A6 A12 A9 A10 3 A1 A11 A2 P1 Block No M M M ...

Page 41: ...130 001A HOOK x2 A 8 FSJB3002 30C HARD CASE A 9 GE20137 003A MOUNTING SLEEVE A 10 GE20135 006A TRIM PLATE A 11 QYSDSP5008Z SCREW M5 x 8mm x6 A 12 QAM0013 006 16P CORD ASSY KIT KSFX480 SCREW1 SCREW PARTS KIT A3 to A7 P 1 FSPG4002 001 POLY BAG P 2 QPA00801205 POLY BAG 8cm x 12cm P 3 QPA01003003 POLY BAG 10cm x 30cm P 4 FSYH4036 068 SHEET P 5 QPA00801205 POLY BAG 8cm x 12cm P 6 GE31003 001A CARTON P ...

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