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JVC KS-F185, Service Manual

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JVC KS-F185 Service Manual Download Page 17

(No.MA094B)1-17

SECTION 5

TROUBLESHOOTING

5.1

16 PIN CORD DIAGRAM

8

7

6

5

4

3

2

1

GY

VI

GN

WH

BL/WH

NC

RD

BK

16

15

14

13

12

11

10

9

YL

GY/BK

VI/BK

GN/BK

WH/BK

NC

NC

NC

Black

RD

BK

Red

BL

Blue

WH

White

GN

Green

VI

Violet

GY

Gray

Yellow

RR

FR

FL

RL

REMOTE

ACC

GND

MEMORY

Rear   Right

Front   Right

Front   Left

Rear   Left

Remote out

ACC   Line

Ground

Memory   Backup   B

16 YL

MEMORY

8 BK

GND

7 RD

ACC

5 BL/WH

REMOTE

4 WH

FL+

12 WH/BK

FL-

3 GN

RL+

11 GN/BK

RL-

2 VI

RR+

10 VI/BK

RR-

1 GY

FR+

9 GY/BK

FR-

YL

Summary of Contents for KS-F185

Page 1: ... MA094B 2005 3 KS F185 KS F185S KS F185G TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 5 4 ADJUSTMENT 1 13 5 TROUBLESHOOTING 1 17 Area suffix UN Indonesia KS F185S Area suffix UN Indonesia KS F185G Area suffix KS F185 UH Thailand UN Indonesia U Other Areas ...

Page 2: ...Wb m TUNER SECTION Frequency Range FM 87 5 MHz to 108 0 MHz AM 531 kHz to 1 602 kHz FM Tuner Usable Sensitivity 11 3 dBf 1 0 µV 75 Ω 50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15 000 Hz Stereo Separation 35 dB Capture Ratio 2 0 dB AM Tuner Sensitivity 20 µV Selectivity 35 dB CASSETTE DECK SECTION Wow Flutter 0 15 WRMS Fas...

Page 3: ...4B 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 MA094B SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2 1 HOW TO IDENTIFY MODELS 2 1 1 NAME PLATE Discernment sign ...

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

Page 6: ...l assembly and bottom cover 1 Remove the two screws D screw E and three screws F at taching 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 procedures remove the front panel assembly bottom cover front chassis assembly heat sink and rear panel 1 Remove the two screws G attaching the main board on the top chassis 2 Disconnect th...

Page 7: ...d amplifier 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 procedures remove the front panel assembly bottom cover front chassis assembly heat sink rear panel main board ...

Page 8: ... 10 3 1 11 Removing the front board See Fig 11 to 13 Prior to performing the following procedures remove the front panel assembly 1 Remove the four screws M attaching the rear cover on the back of the front panel assembly See Fig 11 2 Release the nine joints h the front panel and the rear cover become separate See Fig 12 3 Remove the front board from the rear cover See Fig 13 Caution Take care not...

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: ...ly 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 ma...

Page 11: ...the 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 ...

Page 12: ...ard 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 mecha...

Page 13: ...hanism adjustment Standard 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 AM mode 999kHz 62dB INT 400Hz 30 modulation signal on receiving FM mono mode 97 9MHz 66dB INT 400Hz 22 5kHz deviation pilot o...

Page 14: ...sm driving section such as motor etc Disassembly method 1 Remove the front panel assembly 2 Remove the bottom cover 3 Remove the front chassis assembly 4 Remove the heat sink 5 Remove the main board 6 Reattach the heat sink with the screw B Refer to Disassembly method 7 Reattach the front panel assembly 8 Confirm that current is being carried by connecting an extension cord jig NOTE Available to c...

Page 15: ...ting 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: ...tor with a built in volume resistor 1 2 Play test tape VT724 and set the volume position at 2V Play test tape VT739 and confirm 1kHz 10kHz 1 3dB 1kHz 63Hz 0 3dB When 10kHz is out of specification it will be necessary to read adjust the azimuth 1 2 3 Load VT724 1kHz and play it back in the reverse play mode Set the Rch output level to max Load VT703 10kHz and play it back in the forward play mode A...

Page 17: ...BK GN BK WH BK NC NC NC Black RD BK Red BL Blue WH White GN Green VI Violet GY Gray Yellow RR FR FL RL REMOTE ACC GND MEMORY Rear Right Front Right Front Left Rear Left Remote out ACC Line Ground Memory Backup Battery 16 YL MEMORY 8 BK GND 7 RD ACC 5 BL WH REMOTE 4 WH FL 12 WH BK FL 3 GN RL 11 GN BK RL 2 VI RR 10 VI BK RR 1 GY FR 9 GY BK FR YL ...

Page 18: ... No MA094B AV MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan Victor Company of Japan Limited VPT Printed in Japan ...

Page 19: ... M1 Cassette mechanism assembly and parts list Block No MP Electrical parts list Block No 01 03 F185_UH UN U F185S F185G_UN Electrical parts list Block No 04 06 F185_UH3 UN3 U3 Packing materials and accessories parts list Block No M3 3 2 3 5 3 10 3 12 3 16 Area suffix UH Thailand UN Indonesia U Other Areas KS F185 Area suffix UN Indonesia KS F185S Area suffix UN Indonesia KS F185G MA094B ...

Page 20: ...ploded view of general assembly and parts list B A Block No M M M 1 Switch board 1 15 2 5 5 10 11 5 12 13 14 12 28 12 13 40 41 51 41 31 5 24 25 26 22 27 29 30 32 33 35 45 49 52 44 36 37 38 39 42 34 31 31 23 4 ...

Page 21: ...3 3 Main board B A M M 43 50 15 45 49 44 46 48 47 53 58 54 55 56 57 8 8 3 59 6 6 9 7 16 7 18 19 4 20 21 4 17 ...

Page 22: ...01A PLUS MINUS BTN 26 GE31346 001A SEL BUTTON 27 GE31347 001A SCM BTN 28 FSXP3065 002 EJECT BUTTON 29 FSXP3066 001 FF BUTTON 30 FSXP3067 001 REW BUTTON 31 FSKW3002 003 COMP SPRING x3 32 FSJK3014 001 LIGHT LENS 33 GE20161 001A PRESET BUTTON 34 FSYH4036 031 SHEET 35 GE31024 006A UP DOWN BTN 36 GE31028 003A SSM BTN 37 GE31025 003A SEARCH BTN 38 GE31032 007A DETACH BTN F185GUN 38 GE31032 006A DETACH B...

Page 23: ... 32 81 24 72 30 66 109 120 89 57 2 123 23 69 61 47 31 119 45 46 109 67 58 118 106 6 8 110 25 68 61 19 109 20 22 62 83 76 71 107 121 53 107 21 78 79 35 97 117 7 77 105 116 93 114 115 50 48 82 101 95 117 85 80 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 24: ...LEY GEAR 49 1 0032 2007S TAPE HOOKER 50 1 0058 2021 5S IDLE PULLEY A 53 1 0363 3018S FF ROLLER 54 1 0036 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 6...

Page 25: ...2 1331 7060 C2S SCREW S 117 2 1382 0030 C2S SCREW B x5 118 2 1332 0040 C1S SCREW S 119 2 1032 0070 C2S SCREW x2 120 2 1032 0025 C2S SCREW x2 121 2 1012 0040 C2S SCREW 122 2 1012 0030 F2S SCREW 123 1 0138 5002S AZIMUTH SCREW x3 Symbol No Part No Part Name Description Local ...

Page 26: ...3 8 Grease point 1 2 FL 942 SW 902 SW 522B FG 84M C68 EP 56 Grease Reverse side A 1 2 72 24 ...

Page 27: ...3 9 Grease point 2 2 12 35 5 30 20 19 3 16 38 42 43 4 39 37 15 ...

Page 28: ...TOR 0 082uF 50V J C236 QFV61HJ 823Z MF CAPACITOR 0 082uF 50V J C237 QFV61HJ 154Z MF CAPACITOR 0 15uF 50V J C238 QFV61HJ 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 QFV61HJ 224Z MF CAPACITOR 0 22uF 50...

Page 29: ...1J 273Y C RESISTOR 27kΩ 1 4W J R996 QRE141J 473Y C RESISTOR 47kΩ 1 4W J R997 QRE141J 473Y C RESISTOR 47kΩ 1 4W J R998 QRE141J 473Y C RESISTOR 47kΩ 1 4W J R999 QRE141J 473Y C RESISTOR 47kΩ 1 4W J L1 QQL231K 4R7Y INDUCTOR I M 4 7uH K 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 CJ701 VMC0334 001 CONNECTO...

Page 30: ...1 AN80T05LF IC Q2 UN2211 X TRANSISTOR Q7 2SC3661 X TRANSISTOR Q8 KRC101S X TRANSISTOR Q10 2SC3661 X TRANSISTOR Q11 2SC2412K R X TRANSISTOR Q12 2SC2412K R X TRANSISTOR Q131 2SC2412K R X TRANSISTOR Q231 2SC2412K R X TRANSISTOR Q701 2SC2412K R X TRANSISTOR Q953 UN2211 X TRANSISTOR Q959 UN2211 X TRANSISTOR Q960 2SA1037AK RS X TRANSISTOR Q961 2SA1037AK RS X TRANSISTOR Q962 2SB1322 RS T TRANSISTOR Q963 ...

Page 31: ...No Part No Part Name Description Local R29 NRS181J 152X MG RESISTOR 1 5kΩ 1 8W J R32 NRSA63J 101X MG RESISTOR 100Ω 1 16W J R35 NRSA63J 822X MG RESISTOR 8 2kΩ 1 16W J R36 NRSA63J 223X MG RESISTOR 22kΩ 1 16W J R37 NRSA63J 104X MG RESISTOR 100kΩ 1 16W J R112 NRSA63J 223X MG RESISTOR 22kΩ 1 16W J R113 NRSA63J 272X MG RESISTOR 2 7kΩ 1 16W J R114 NRSA63J 272X MG RESISTOR 2 7kΩ 1 16W J R132 NRSA63J 222X ...

Page 32: ...R615 NRSA63J 911X MG RESISTOR 910Ω 1 16W J R635 NRS181J 221X MG RESISTOR 220Ω 1 8W J Symbol No Part No Part Name Description Local R636 NRSA02J 122X MG RESISTOR 1 2kΩ 1 10W J R637 NRSA02J 122X MG RESISTOR 1 2kΩ 1 10W J R638 NRSA02J 821X MG RESISTOR 820Ω 1 10W J R639 NRSA02J 821X MG RESISTOR 820Ω 1 10W J R640 NRSA02J 431X MG RESISTOR 430Ω 1 10W J R642 NRSA02J 271X MG RESISTOR 270Ω 1 10W J R644 NRSA...

Page 33: ...3 15 MEMO ...

Page 34: ...acking materials and accessories parts list F185U F185U3 Block No M M M 3 F185UN F185UN3 F185SUN F185GUN F185UH F185UH3 P6 P2 A3 A2 P1 P7 P7 P5 A12 A13 P4 KIT A8 A7 A10 A9 A11 P3 A1 A4 A5 A6 P3 A1 A6 P3 A1 A5 ...

Page 35: ...NSTALL MANUAL F185UH F185U A 6 GET0225 005A INSTALL MANUAL F185U F185U3 A 6 GET0225 006A INSTALL MANUAL F185GUN F185SUN F185UN F185UN3 A 7 VKZ4027 202 PLUG NUT A 8 VKH4871 003 MOUNT BOLT A 9 VKZ4328 003 LOCK NUT A 10 QYWWS53A008ZA WASHER 0mm 5 3mm x A 11 GE40130 002A HOOK x2 A 12 FSJB3002 00C HARD CASE A 13 QAM0013 007 16P CORD ASSY KIT SRW 385U SCREW PARTS KIT A7 A8 A9 A10 A11 F185UH P 1 GE31318 ...

Page 36: ...sia KS F185S Area suffix UN Indonesia KS F185G Area suffix KS F185 UH Thailand UN Indonesia U Other Areas Contents Block diagram For UH UN U version Standard schematic diagrams For UH UN U version Block diagram For UH3 UN3 U3 version Standard schematic diagrams For UH3 UN3 U3 version Printed circuit boards 2 1 2 2 2 5 2 6 2 9 to 11 CD ROM No SML200503 ...

Page 37: ... 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 38: ...d AM PROG SW ANT IC981 POWER AMP IC931 E VOL IC901 HEAD AMP TO SPEAKER CONNECTOR LCD1 IC651 LCD DRIVER S601 to S618 KEY DATA CLOCK CE IC701 MICON TU1 FM AM TUNER PACK SK ST MONO SD ST S METER FM OSC EO BAND IFC C IF 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 LCD SCK LCD CE KEY0 to KEY2 DE...

Page 39: ...Z0095 001 10K 470P LC72362N 9C64 3 3K 4 7K 10 27K 27K 470P 3 3K 470P 470P 10 16 47k QAM0013 007 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 QAU0311 001 27K 27K 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 1K 100 100 1K 1SS119 041 2 2K 2 2K 1SS119 041 1SS119 041 10 16 1 50...

Page 40: ...901 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 SHEET 1 SHEET 1 ...

Page 41: ...60 910 1 2k 680 560 680 680 560 680 910 UDZS5 1B X 1 5k 180k 1 5k 680 910 47k VMC0335 001 2 2K 430 1 2K 1 2K 430 430 820 820 270 270 SML 310LT MN X QLL0033 003 1 2K 1 2K 820 820 10k 10k 10k 220 QLL0033 003 S32 S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 COM1 COM2 COM3 S18 S17 CE S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 CLOCK S13 ACC5V S14 KEY0 S15 S16 S43 S42 S41 S40 S39 S38 S37 S36 S35 S34 S33 S4...

Page 42: ...AM PROG SW ANT IC941 POWER AMP IC911 E VOL IC901 HEAD AMP TO SPEAKER CONNECTOR LCD1 IC651 LCD DRIVER S601 to S618 KEY DATA CLOCK CE IC701 MICON TU1 FM AM TUNER PACK SK ST MONO SD ST S METER FM OSC EO BAND IFC C IF C DI CL CE TAPEIN T MUTE Main amplifier section CP721 Relay board CP722 CN902 CP981 J931 LFO LFO RFO RFO LRO RRO CN901 CP901 CJ901 HEAD CJ701 CP701 LCD SO LCD SCK LCD CE KEY0 to KEY2 DET...

Page 43: ...056 0 1 10 16 1 50 2SB1322 RS T 1SS355 X 1SS355 X 47K 2 7K QQR1366 001 2 7K 1 50 3K 3K 0 2SC2412K R X UN2211 X 1k 1 50 1 50 1 50 2SC2412K R X 2SA1037AK RS X 1 50 2 7K 2 7K UN2211 X UN2211 X 47k UPD178078GF 708 0 22 50 1 50 1 50 QNZ0095 001 1 50 0 0 0 270 47u 2SC2412K R X 100 100k 100k 10k 100 1SS355 X QAX0406 001Z 27P 27P 390 UN2211 X 10k 0 0 1 4 7k 4 7k 4 7k 2 2k 0 22 50 0 1 2SA1037AK RS X VMC033...

Page 44: ...1 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 SHEET 1 SHEET 1 Head amplifier section ...

Page 45: ...560 910 1 2K 680 560 680 680 560 680 910 UDZS5 1B X 1 5K 180k 1 5k 680 910 47k VMC0335 001 2 2K 430 1 2K 1 2K 430 430 820 820 270 270 SML 310LT MN X QLL0033 003 1 2K 1 2K 820 820 10k 10k 10k 220 QLL0033 003 S32 S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 COM1 COM2 COM3 S18 S17 CE S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 CLOCK S13 ACC5V S14 KEY0 S15 S16 S43 S42 S41 S40 S39 S38 S37 S36 S35 S34 S33 S...

Page 46: ...Q782 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 R...

Page 47: ... R236 R241 R242 R251 R252 R701 R702 R703 R704 R705 Q8 R708 R709 R710 R711 R712 R713 R715 R716 R717 R718 R719 R720 R721 R722 R723 R724 R725 R726 R727 C952 C953 R736 R737 R738 R740 R746 R747 R748 R750 R752 R753 R754 R755 R756 R757 R758 R759 R772 R773 C2 R778 R911 R912 R913 R941 R959 R960 R961 R962 R963 R966 R967 R969 R970 R974 R975 R977 C712 R979 R980 R982 R781 X701 L961 R780 B209 R214 B130 B124 C96...

Page 48: ...1 IC651 R636 R637 R638 R639 R640 R641 R642 R643 R644 R645 R646 R647 R648 R649 R650 R651 R652 R653 R661 R662 R663 PL603 PL601 C651 C652 C653 D601 D602 D603 D604 D605 D606 D607 D608 D609 D610 D611 D612 D613 D614 D615 D616 D617 D618 D619 D654 R601 R602 R603 R604 R605 R606 R607 R608 R609 R610 R611 R612 R613 R614 R615 R635 R654 R655 R657 S601 S602 S603 S604 S605 S606 S607 S608 S609 S610 S611 S613 S612 ...

Page 49: ... No MA094BSCH Victor Company of Japan Limited AV MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan Printed in Japan VPT ...

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