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JVC KS-F345 Service Manual

Cassette receiver
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3 7 63 1515 0
SERVICE MANUAL
03
2003
49783
TE
L 13942296513
1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2
Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3
Adjustment method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4
Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
www
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http://www.xiaoyu163.com
CASSETTE RECEIVER
KS-F345
TABLE OF CONTENTS
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COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
http://www.xiaoyu163.com
2 9
8
S.BASS
Q Q
SEL
3
6 7
1 3
1 5
DISP
co
.
9 4
2 8
Area Suffix
EE ---- Russian Federation
FM
AM
SSM
0 5
8
2 9
9 4
2 8
EX
MO
SCM
m
No.49783
KS-F345
9 9
9 9
2003/03

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Summary of Contents for JVC KS-F345

  • Page 1 KS-F345 3 7 63 1515 0 SERVICE MANUAL CASSETTE RECEIVER 49783 2003 KS-F345 Area Suffix EE ---- Russian Federation S.BASS L 13942296513 DISP TABLE OF CONTENTS Important Safety Precautions ............1-2 Disassembly method .
  • Page 2 KS-F345 SECTION 1 3 7 63 1515 0 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.
  • Page 3 KS-F345 SECTION 2 3 7 63 1515 0 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...
  • Page 4 KS-F345 2.1.4 Removing the heat sink 3 7 63 1515 0 (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-F345 2.1.7 Removing the cassette mechanism assembly 3 7 63 1515 0 (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.
  • Page 6 KS-F345 2.1.9 Removing the relay board 3 7 63 1515 0 (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.
  • Page 7 KS-F345 2.1.11 Removing the switch (LCD & key) board 3 7 63 1515 0 (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-F345 2.2 Cassette mechanism assembly 3 7 63 1515 0 • 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-F345 2.2.6 Removing the cassette hanger / cassette holder 3 7 63 1515 0 Cassette holder (See Fig.3) Return link Joint i • Prior to performing the following procedure, remove the FF / Cassette hanger REW lever assembly. (1) From the rear of the unit, bend the two tabs f outwards and Eject lever disengage the two joints g in the direction of the arrow.
  • Page 10 KS-F345 2.2.9 Removing the Flywheel (BF) and (BR) assembly 3 7 63 1515 0 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-F345 2.2.11 Removing the mute switch board 3 7 63 1515 0 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.
  • Page 12 KS-F345 SECTION 3 3 7 63 1515 0 Adjustment 3.1 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.
  • Page 13 KS-F345 3 7 63 1515 0 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.
  • Page 14 KS-F345 3 7 63 1515 0 Arrangement of adjusting & test points Cassette mechanism (Surface) Motor assembly Tape speed adjust Playback head Azimuth screw L 13942296513 Head section view Head azimuth screw Fixed screw Playback head Height adjusting screw...
  • Page 15 KS-F345 3 7 63 1515 0 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- A Line ing a mirror tape, remove the cassette housing from the mechanism chassis.

  • Page 16: Description Of Major Ics

    KS-F345 SECTION 4 3 7 63 1515 0 Description of major ICs 4.1 LC75823W (IC651) : LCD driver • Pin Layout & Symbol 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49...
  • Page 17 KS-F345 4.2 LC72362N-9B40 (IC701) : Micon 3 7 63 1515 0 • Pin layout 24 - 1 41 - 64 • Pin functions Pin No. Symbol Function Pin No. Symbol Function - Non connect I Crystal oscillator - Non connect...
  • Page 18 KS-F345 4.3 LC75421M-X (IC931): E. volume 3 7 63 1515 0 • Pin layout • Block diagram L 13942296513 u163 1-18 (No.49783) http://www.xiaoyu163.com...
  • Page 19 KS-F345 • Pin functions 3 7 63 1515 0 Pin No Symbol Function Serial data input terminal for control Chip enable terminal LROUT Rear Lch fader output terminal LFOUT Front Lch fader output terminal LFIN Front Lch input terminal LOUT C &...
  • Page 20 KS-F345 4.4 LA4743K (IC981) : Power amp. 3 7 63 1515 0 • 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...
  • Page 21 KS-F345 • Terminal layout 3 7 63 1515 0 • 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...
  • Page 22 KS-F345 4.5 AN80T05LF (IC781) : Regulator 3 7 63 1515 0 • 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 L 13942296513 Pin No.
  • Page 23 KS-F345 3 7 63 1515 0 L 13942296513 u163 (No.49783)1-23 http://www.xiaoyu163.com...
  • Page 24 KS-F345 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49783) Printed in Japan 200303WPC http://www.xiaoyu163.com...

  • Page 25: Schematic Diagrams

    KS-F345 3 7 63 1515 0 SCHEMATIC DIAGRAMS CASSETTE RECEIVER KS-F345 CD-ROM No.SML200303 S.BASS L 13942296513 DISP Area Suffix EE ---- Russian Federation Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5,6 u163 No.49783SCH COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
  • Page 26 KS-F345 3 7 63 1515 0 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. L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 27 KS-F345 3 7 6 3 1 5 1 5 0 Block diagram DIRECTION BOARD CP722 MAIN MOTOR RELAY BOARD HEAD MUTE SWITCH CP721 TAPE/RADIO SW PROG-SW SPEAKER CONNECTOR LINE REAR OUT CN721 CJ901 CP981 CJ921 Lch Front Lch Rear...
  • Page 28 KS-F345 KS-F345 3 7 6 3 1 5 1 5 0 Standard schematic diagrams Main amp section QAU0221-001 Q989 KRA102M-T QNZ0009-001 ACC.MUTE Q972 KRA102M-T 1SS119-041 D973 MUTE2 CJ921 QNN0519-001 R163 4.7uH R164 D161 R165 1SS119-041 2.2K D261 R265 Parts are safety assurance parts.
  • Page 29 KS-F345 3 7 6 3 1 5 1 5 0 LCD & Key control section VMC0335-001 CP701 1 3 9 4 2 2 9 6 5 1 3 D655 MA152WK-X COM1 R651 COM2 1.5k COM3 C651 0.01 IC651 D654...
  • Page 30 KS-F345 KS-F345 3 7 6 3 1 5 1 5 0 Head amp section CJ901 QGA2002C1-05 IC901 UPC1228HA 1 3 9 4 2 2 9 6 5 1 3 C203 C103 R204 R104 330k 330k 100p 100p CP722 QGA2002F1-06...
  • Page 31 KS-F345 3 7 63 1515 0 Printed circuit boards Main board CP981 L981 C981 CJ921 D981 CP751 CN901 R787 C986 C983 C132 D771 C133 C940 C931 R771 C997 R721 C942 C996 R941 C933 R722 C934 R992 C250 C231 C941...
  • Page 32 KS-F345 3 7 63 1515 0 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...
  • Page 33 KS-F345 3 7 63 1515 0 < M E M O > L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 34 KS-F345 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.49783SCH) 2003/03 http://www.xiaoyu163.com...

  • Page 35: Parts List

    KS-F345 3 7 63 1515 0 PARTS LIST [ KS-F345 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix EE --------- Russian Federation L 13942296513 - Contents - Exploded view of general assembly and parts list (Block No.M1) --------------------- 3-2 Cassette mechanism assembly and parts list (Block No.MP) -------------------------- 3-4...
  • Page 36 KS-F345 3 7 63 1515 0 Exploded view of general assmbly and parts list L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 37: Exploded View Of General Assembly And Parts List (Block No.m1)

    KS-F345 3 7 63 1515 0 Exploded view of general Assembly and parts list Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local ------------ CDS-363 MECHA VKL7821-001 EJECT LEVER QYSPSPT2625Z SCREW 2.6mm x 2.5mm QYSDSP2604Z SCREW 2.6mm x 4mm(x4)

  • Page 38: Cassette Mechanism Assembly And Parts List (Block No.mp)

    KS-F345 3 7 63 1515 0 Cassette mechanism assembly and parts list Block No. CDS-363SJ1 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 39 Block No. [M][P][M][M]  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local 1-0036-7088S 5P WIRE ASY(JVC 2-1816-0032-E8S MYLAR WASHER(S) (x2) X-0363-1001S MAIN CHASSIS AS 2-1812-0030-D2S PSW-S (x3) X-0363-1002S HEAD PLATE ASSY 1-0036-5024S PSW(REEL)
  • Page 40 KS-F345 3 7 63 1515 0 Grease point 1/2 Grease FL-942 SW-902 SW-522B FG-84M CFD-409 Reverse side L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 41 KS-F345 3 7 63 1515 0 Grease point 2/2 L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 42: Electrical Parts List (Block No.01~03)

    KS-F345 3 7 63 1515 0 Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1][0][0] C150 QERF1HM-225Z E CAPACITOR 2.2uF 50V M  Symbol No. Part No. Part Name Description Local...
  • Page 43 KS-F345 3 7 63 1515 0  Symbol No. Mecha control board Part No. Part Name Description Local Block No. [0][2][0][0] R163 QRE141J-821Y C RESISTOR 820Ω 1/4W J  Symbol No. R164 QRE141J-101Y C RESISTOR 100Ω 1/4W J Part No.
  • Page 44 KS-F345 3 7 63 1515 0  Symbol No. Part No. Part Name Description Local R615 NRSA63J-681X MG RESISTOR 680Ω 1/16W J R616 NRSA63J-911X MG RESISTOR 910Ω 1/16W J R617 NRSA63J-122X MG RESISTOR 1.2kΩ 1/16W J R618 NRSA63J-152X MG RESISTOR 1.5kΩ...
  • Page 45 KS-F345 3 7 63 1515 0 <MEMO> L 13942296513 u163 3-11 http://www.xiaoyu163.com...

  • Page 46: Packing Materials And Accessories Parts List (Block No.m3,M5)

    KS-F345 3 7 63 1515 0 Packing materials and accessories parts list Block No. Block No. L 13942296513 KIT : A6~A10 A1,A2,A4,A5 u163 3-12 http://www.xiaoyu163.com...
  • Page 47 KS-F345 3 7 63 1515 0 Packing Accessories Block No. [M][3][M][M] Block No. [M][5][M][M  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local FSPG4002-001 POLY BAG GET0112-001B INST BOOK ENG RUS...