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JVC KS-F383R Service Manual
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JVC KS-F383R Service Manual

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SERVICE MANUAL
02
2003
49813
KS-F383R,KS-F380R
1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2
Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3
Adjustment method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4
Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
CASSETTE RECEIVER
LOUD
SEL
DISP
Model
KS-F383R
KS-F380R
TABLE OF CONTENTS
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
Illumination color
Amber
Green
KS-F383R,KS-F380R
Area Suffix
E ---- Continental Europe
EX -------- Central Europe
FM
AM
SSM
TP
PTY
MO
SCM
No.49813
2003/03

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Summary of Contents for JVC KS-F383R

  • Page 1 KS-F383R,KS-F380R SERVICE MANUAL CASSETTE RECEIVER 49813 2003 KS-F383R,KS-F380R Area Suffix E ---- Continental Europe EX -------- Central Europe LOUD DISP Model Illumination color KS-F383R Amber KS-F380R Green TABLE OF CONTENTS Important Safety Precautions ............1-2 Disassembly method .

  • Page 2: Important Safety Precautions

    KS-F383R,KS-F380R SECTION 1 Important Safety Precautions 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. 1-2 (No.49813)

  • Page 3: Disassembly Method

    KS-F383R,KS-F380R SECTION 2 Disassembly method 2.1 Main body 2.1.1 Removing the front panel assembly (See Fig.1) (1) Press the release button and remove the front panel as- Front panel assembly sembly. Release button Fig.1 2.1.2 Removing the bottom cover (See Fig.2) •...
  • Page 4 KS-F383R,KS-F380R 2.1.4 Removing the heat sink (See Fig.4) • Prior to performing the following procedure, remove the front panel assembly. (1) Remove the two screws B and two screws C attaching the heat sink on the left side of the body, and remove the heat sink.
  • Page 5 KS-F383R,KS-F380R 2.1.7 Removing the cassette mechanism assembly (See Fig.7) • Prior to performing the following procedure, remove the front Cassette mechanism assembly panel assembly, bottom cover, front chassis, heat sink, rear panel and main board. (1) Remove the four screws H attaching the cassette mecha- nism assembly on the top chassis.
  • Page 6 KS-F383R,KS-F380R 2.1.9 Removing the relay board (See Fig.9) • Prior to performing the following procedure, remove the front Relay board CP722 panel assembly, bottom cover, front chassis, heat sink, rear panel, main board and cassette mechanism assembly. (1) Disconnect the wire from CP722 on the relay board.
  • Page 7 KS-F383R,KS-F380R 2.1.11 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.
  • Page 8 KS-F383R,KS-F380R 2.2 Cassette mechanism assembly • Prior to performing the following procedures, remove the head 2.2.4 Removing the playback head amplifier board, the relay board and the mechanism bracket. (See Fig.2) • Prior to performing the following procedure, remove the direc- 2.2.1 Removing the direction switch board...
  • Page 9 KS-F383R,KS-F380R 2.2.6 Removing the cassette hanger / cassette holder Cassette holder (See Fig.3) Return link Joint i • Prior to performing the following procedure, remove the FF / Cassette hanger REW lever assembly. Eject lever (1) From the rear of the unit, bend the two tabs f outwards and disengage the two joints g in the direction of the arrow.
  • Page 10 KS-F383R,KS-F380R 2.2.9 Removing the Flywheel (BF) and (BR) assembly 2.2.10 Removing the reel base assembly (See Fig.4 and 5) (See Fig.5 and 6) • Prior to performing the following procedure, remove the cas- (1) Raise the part k of the reel base assembly slightly and re- sette hanger / cassette holder.
  • Page 11 KS-F383R,KS-F380R 2.2.11 Removing the mute switch board Cassette mechanism assembly Rower switch (See Fig.8) (1) Unsolder the two wires l on the mute switch board on the Soldering l Motor assembly back of the cassette mechanism assembly. (2) Remove the screw H attaching the mute switch board.

  • Page 12: Adjustment Method

    KS-F383R,KS-F380R SECTION 3 Adjustment method Test instruments reqired for adjustment Standard volume position 1. Digital oscilloscoe(100MHz) Balance and Bass, Treble volume, Fader 2. Frequency counter meter :Center(Indication"0") 3. Electric voltmeter Loudness, Dolby NR, Sound, Cruise: Off 4. Wow & flutter meter Volume position is about 2V at speaker output with 5.
  • Page 13 KS-F383R,KS-F380R Information for using a car audio service jig 1. For 1995 and 1996, we're advancing efforts to make our extension cords common for all car audio products. Please use this type of extension cord as follows. 2. As a U-shape type top cover is employed, this type of extension cord is needed to check operation of the mechanism assembly after disassembly.
  • Page 14 KS-F383R,KS-F380R Arrangement of adjusting & test points Cassette mechanism (Surface) Motor assembly Tape speed adjust Playback head Azimuth screw Head section view Head azimuth screw Fixed screw Playback head Height adjusting screw a Height adjusting screw c Height adjusting screw b...
  • Page 15 KS-F383R,KS-F380R Mechanism adjustment section Item Adjusting & Confirmation Methods Adjust Std. Value 1. Head azimuth "Head Height Adjustment" Note Adjust the azimuth directly. When you adjust the height us- ing a mirror tape, remove the cassette housing from the A Line mechanism chassis.

  • Page 16: Description Of Major Ics

    KS-F383R,KS-F380R SECTION 4 Description of major ICs 4.1 AN80T05LF (IC961) : Regulator • Pin layout & Block diagram Reference Voltage ASO & Peak Current Protection Thermal Protection Drive Drive Drive Drive Drive MODE2 MODE1 5.6V 8.7V 8.7V 8.7V • Pin function Pin No.
  • Page 17 KS-F383R,KS-F380R 4.2 LC75823W (IC651) : LCD driver • Pin Layout 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 •...
  • Page 18 KS-F383R,KS-F380R 4.3 LA4743K (IC941) : Power amp. • Block diagram 2200 F 0.022 F Vcc 1/2 Vcc 3/4 IN 1 OUT 1+ 0.22 F OUT 1- PWR GND1 Protective circuit OUT 2+ IN 2 OUT 2- 0.22 F PWR GND2...
  • Page 19 KS-F383R,KS-F380R • Pin layout • Pin function Pin No. Symbol Function Header of IC Power GND Outpur(-) for front Rch STDBY Stand by input Output (+) for front Rch Power input Output (-) for rear Rch Power GND Output (+) for rear Rch...
  • Page 20 KS-F383R,KS-F380R 4.4 TEA6320T-X (IC911) : E.volume • Pin layout OUTRR OUTLR OUTRF OUTLF Vref MUTE CD-CH TAPE TUNER • Block diagram VOLUME 2 MUTE 0 to 55 dB FUNCTION BALANCE ZERO CROSS FENDER REAR POWER DETECTOR SUPPLY VOLUME 1 BASS...
  • Page 21 KS-F383R,KS-F380R • Pin functions Pin No. Symbol Functions Serial data input/output. Ground. OUTLR output left rear. OUTLF output left front. Treble control capacitor left channel or input from an external equalizer. Bass control capacitor left channel or output to an external equalizer.
  • Page 22 KS-F383R,KS-F380R 4.6 UPD178078GF-595 (IC701): System CPU • Pin Layout • Pin function Pin No. Symbol Function Power save 1 Power save 2 No use J-BUS I/O J-BUS communication I/O port J-BUS IN J-BUS communication input J-BUS OUT J-BUS communication output...
  • Page 23 KS-F383R,KS-F380R Pin No. Symbol Function AM E0 PLL error output for AM FM E0 PLL error output for FM IC(VPP) Setting to write for flsh RESET System reset RDS CK Clock output for RDS RDS DA Data ouytput for RDS...
  • Page 24 KS-F383R,KS-F380R 4.7 SAA6579T-X(IC761): RDS detecter • Pin layout QUAL DATA Vref OSCO OSCI TEST SCOUT MODE • Block diagram ANTI- 57 kHz OSCILLATOR QUALITY BIT RECONSTRUCTION ALIASING BAND PASS GENERATOR FILTER FILTER (8th ORDER) DIVIDER COSTAS LOOP BIPHASE CLOCKED DIFFERENTIAL...
  • Page 25 KS-F383R,KS-F380R (No.49813)1-25...
  • Page 26 KS-F383R,KS-F380R VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49813) Printed in Japan 200303WPC...

  • Page 27: Schematic Diagrams

    KS-F383R/KS-F380R SCHEMATIC DIAGRAMS CASSETTE RECEIVER KS-F383R/KS-F380R CD-ROM No.SML200303 Model Illumination color Area Suffix KS-F383R Amber E -------- Continental Europe KS-F380R Green EX ------------ Central Europe Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5,6 No.49813SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
  • Page 28 KS-F383R/KS-F380R Safety precaution 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 29 KS-F383R/KS-F380R Block diagram MECHA CONTROL CP722 MAIN MOTOR RELAY BOARD HEAD MUTE SWITCH CP721 RADIO/TAPE SW PROG-SW SPEAKER CONNECTOR LINE REAR OUT CJ901 CN902 CP981 J931 Lch Front Lch Rear Rch Front Rch Rear Rear OUT IC941 Rear OUT POWER AMP.
  • Page 30 KS-F383R/KS-F380R KS-F383R/KS-F380R Standard schematic diagrams Main amp section IC941 LA4743K C951 C952 C947 0.22/50 R141 QNZ0100-002 C761 0.022 R251 C251 1/50 C253 1/50 R142 C948 R151 C151 C153 1/50 0.22/50 4.7U 0.1/50 1/50 R113 2SC2412K/R/-X Q251 Q151 2.2k C119 1/50...
  • Page 31 KS-F383R/KS-F380R LCD & Key control section To Main amp section CJ 701 VMC0335-001 CP701 D655 MA152WK-X COM1 R651 COM2 1.5k COM3 C651 IC651 D654 C652 LC75823W MA152WK-X 4.7/6.3 MA152WA-X R652 D653 D652 C653 CLOCK MA152WA-X 680p DATA R601 R602 R603...
  • Page 32 KS-F383R/KS-F380R KS-F383R/KS-F380R Head amp section CJ901 QGA2002C1-05 IC901 UPC1228HA C103 C203 R104 R204 330k 330k 100p 100p CP722 QGA2002F1-06 C901 Tape signal CP721 QGB1214K1-06S To Main amp section CN902 CP901 To Main amp QGB1214K1-06S section CN901...
  • Page 33 KS-F383R/KS-F380R Printed circuit boards Main board Reverse side L961 J931 R970 D961 J751 C965 R136 R236 B106 CN901 CP981 R132 D931 C946 R232 D932 C112 C941 B201 B109 C952 B202 B132 B203 B280 R961 C967 C982 B220 R142 B222 B204...
  • Page 34 KS-F383R/KS-F380R Front board Forward side D601 S621 S601 R611 D606 D616 R618 S604 D619 R617 S620 S603 S608 D605 D617 R603 R616 R602 S602 R615 S618 S605 D604 D620 D618 S619 LCD1 D608 S606 D615 D610 D614 S609 S610 S611...
  • Page 35 KS-F383R/KS-F380R < M E M O >...
  • Page 36 KS-F383R/KS-F380R VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49813SCH) 2003/03...

  • Page 37: Parts List

    KS-F383R,KS-F380R PARTS LIST [ KS-F383R ] [ KS-F380R ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix E------------ Continental Europe EX --------------- Central Europe - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 5 Cassette mechanism assembly and parts list (Block No.MP)
  • Page 38 KS-F383R,KS-F380R...
  • Page 39 TORSION SPRING FSXP3026-002 RLS KNOB FSKW3002-004 COMP.SPRING FSJC3014-002 CASSETTE LID VKW4947-002 DOOR SPRING GE10051-001A FRONT PANEL GE30584-010A FINDER ASSY 1 KS-F383R GE30584-011A FINDER ASSY 1 KS-F380R FSJK3014-001 LIGHT LENS GE20119-001A PRESET BUTTON 1 1-6 FSYH4036-077 SHEET 1 PRESET BUTTON GE30304-001A POWER BUTTON D.FUNC BUTTON...
  • Page 40 KS-F383R,KS-F380R Parts list (General assembly) Block No. M1MM Item Description Parts number Parts name Q'ty Area FSYH4075-003 LIGHTING SHEET 1 KS-F383R NAME PLATE 1 KS-F383R GE30633-001A GE30636-001A NAME PLATE 1 KS-F380R QLD0250-001 LCD MODULE RUBBER CONNE QNZ0440-001 GE40136-001A IC BRACKET...
  • Page 41 KS-F383R,KS-F380R Cassette mechanism assembly and parts list Block No. CDS-363SJ1...
  • Page 42 KS-F383R,KS-F380R Parts list (Cassette mechanism) Block No. MPMM Item Parts number Parts name Q'ty Description Area X-0363-1001S MAIN CHASSIS AS X-0363-1002S HEAD PLATE ASSY X-0363-1004S FR CONV ARM (A) X-0363-6001S REEL BASE ASSY X-0363-6007S LEVER BRKT ASSY X-0363-6003S TU GEAR ARM ASS...
  • Page 43 X-0363-7006S MOTOR ASSY 1-0363-7001S MUTE SW 1-0363-7002S SLIDE SW 1-0363-7008S SLIDE SW PWB 1-0036-7016S HEAD 1-0363-7005S POWER SW 1-0036-7089S 6P WIRE ASY(JVC 1-0036-7088S 5P WIRE ASY(JVC 2-1816-0032-E8S MYLAR WASHER(S) 2-1812-0030-D2S POLY WASHER(S) 1-0036-5024S PSW(REEL) 2-1712-0050-16S E RING 2-1712-5060-16S E RING...
  • Page 44 KS-F383R,KS-F380R Grease point 1/2 Grease FL-942 SW-902 SW-522B FG-84M CFD-409 Reverse side...
  • Page 45 KS-F383R,KS-F380R Grease point 2/2...
  • Page 46 KS-F383R,KS-F380R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area QEKJ1HM-104Z E CAPACITOR .10MF 20% 50V C 767 NCB31HK-103X C CAPACITOR NCB31EK-104X C CAPACITOR C 768 NCB31HK-103X...
  • Page 47 KS-F383R,KS-F380R Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area D 982 1SS355-X DIODE R 132 NRSA63J-222X MG RESISTOR D 983 1SS355-X DIODE R 135 NRSA63J-101X MG RESISTOR...
  • Page 48 KS-F383R,KS-F380R Electrical parts list (Main board) Block No. 01 Electrical parts list (Mecha board) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 747 NRSA63J-473X MG RESISTOR INTI. RES. C 101...
  • Page 49 KS-F383R,KS-F380R Electrical parts list (Front board) Block No. 03 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area KS-F380R C 651 NCB31EK-103X C CAPACITOR R 637 NRSA02J-821X MG RESISTOR C 652 NBE20JM-475X TS E CAPACITOR...
  • Page 50 KS-F383R,KS-F380R Packing materials and accessories parts list Block No. Block No. A2~A7 KIT : A9~A13 3-14...
  • Page 51 POLY BAG QPA01003003 POLY BAG FSYH4036-068 SHEET 1 FOR FRONT PANEL GE30637-001A CARTON 1 KS-F380R GE30634-001A CARTON 1 KS-F383R GE10047-001A EPS CUSHION 2 ONE PAIR CUSHIO QPC03004315P POLY BAG Parts list (Accessories) Block No. M5MM Item Parts number Parts name...

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