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SERVICE MANUAL
Contents
Safety precaution
Disassembly method
Adjustment method
Description of major ICs
CASSETTE RECEIVER
KS-FX201
1-2
1-3
1-12
1-16
This service manual is printed on 100% recycled paper.
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
KS-FX201
Area Suffix
U ---- Other Areas
No.49589
Jan. 2001
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Summary of Contents for JVC KS-FX201
- Page 1 KS-FX201 SERVICE MANUAL CASSETTE RECEIVER KS-FX201 Area Suffix U ---- Other Areas Contents Safety precaution Disassembly method Adjustment method 1-12 Description of major ICs 1-16 No.49589 This service manual is printed on 100% recycled paper. COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
- Page 2 KS-FX201 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 3 KS-FX201 Disassembly Method Front panel unit Detaching the Front Panel Unit ( See Fig.1 ) Push the Release button in the direction of arrow to detach the front panel unit. Push the release button Fig. 1 Front chassis Bottom cover Removing the Front Chassis ( See Fig.
- Page 4 KS-FX201 Removing the Heat Sink ( See Fig. 5 ) 1. Removing the front chassis. 2. Removing the bottom cover. 3. Remove the three screws ( 1 and 1' ) retaining the heat sink. Fig. 5 Removing the Main Board Assembly ( See Fig.
- Page 5 KS-FX201 Cassette mechanism Removing the Cassette Mechanism assembly ( See Fig. 8 ) 1. Removing the front chassis. 2. Removing the bottom cover. 3. Removing the heat sink. 4. Removing the main board assembly. 5. Remove the four screws ( 4 ) retaining the cassette Front side mechanism.
- Page 6 KS-FX201 Head amplifier board Removing the Head Amplifier Board ( See Fig. 12 ) 1. Removing the front chassis. CJ901 2. Removing the bottom cover. 3. Removing the heat sink. 4. Removing the main board assembly. 5. Removing the cassette mechanism.
- Page 7 KS-FX201 <Cassette mechanism assembly> Prior to performing the following procedures, remove the head amplifier board, the relay board and the FF / REW lever assembly mechanism bracket. Joint c Removing the direction switch board Joint e (See Fig.1) Unsolder the three wires a on the direction switch board.
- Page 8 KS-FX201 Pinch-roller (F) assembly Pinch-roller (R) assembly S support plate C washer A arm spring (b) A arm spring (a) Shaft Shaft Playback head FF roller Remove the P arm spring (f) Remove the P arm spring (r) from the chassis.
- Page 9 KS-FX201 Removing the cassette hanger / cassette Cassette holder holder (See Fig.3) Return link Joint i Prior to performing the following procedure, remove Cassette hanger the FF / REW lever assembly. Eject lever 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-FX201 Removing the Flywheel (BF) and (BR) assembly (See Fig.4 and 5) C washer Prior to performing the following procedure, remove the cassette hanger / cassette holder. From the upper side of the cassette mechanism assembly, remove the C washer from each shaft of the flywheel (BF) and (BR).
- Page 11 KS-FX201 Removing the mute switch board (See Fig.8) Unsolder the two wires l on the mute switch board on Cassette mechanism assembly Rower switch the back of the cassette mechanism assembly. Solding l Motor assembly Remove the screw H attaching the mute switch board.
- Page 12 KS-FX201 Adjustment Method Test Instruments reqired for adjustment Standard volume position 1. Digital osclloscope(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-FX201 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 14 KS-FX201 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 15 KS-FX201 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 KS-FX201 Descrption of major ICs TEA6320T-X (IC931) : E.volume 1.Pin layout 2.Block diagram VOLUME 2 MUTE 0 to 55 dB FUNCTION BALANCE OUTRR OUTLR ZERO CROSS FENDER REAR POWER DETECTOR OUTRF OUTLF SUPPLY VOLUME 1 BASS TREBLE +20 to -31 dB...
- Page 17 KS-FX201 AN80T05LF (IC781) : Regulator 1.Terminal 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 2.Pin function Symbol Function 10V power supply for illumination. MODE2 When 5V is input,becomes AM.
- Page 18 KS-FX201 LC72362N-9920 (IC701) : System control 1. Pin layout 2. Pin function Pin No. Symbol Function 4.5MHz crystal oscillator connections TEST2 LSI test pin. PG3/SI0 PG2/SO0 PG1/SCK0 PF3/SI1 PF2/SO1 General-purpose input/output and serial input/output shared ports. PF1/SCK1 PE3/SI2 PE2/SO2 PE1/SCK2 15~18 Output only port.
- Page 19 KS-FX201 3.Block diagram LC72362N-9920 DIVIDER REFERENCE DIVIDER SELECTOR PHASE DETECTOR XOUT SUBPD UNLOCK FMIN 1/16, 1/17 PROGRAMMABLE DIVIDER C.P. PHASE AMIN 1/114, 1/124 DETECTOR LATCH SNSFF V-DET LATCH HCTR UNIVERSAL LATCH COUNTER (20bits) DRIV. LCTR LATCH HOLD TEST1 DRIV. ADDRESS...
- Page 20 KS-FX201 HA13158A (IC981) : Power amp 1. Pin layout 2. Block diagram PVCC2 PVCC1 INVCC STBY INPUTBUFFER1 AMP1 INPUTBUFFER2 AMP2 INPUTBUFFER3 AMP3 INPUTBUFFER4 AMP4 MUTE PROTECTOR (ASO SURGE, TSD) 1-20...
- Page 21 KS-FX201 HD74HC126P(IC751) :CD CHANGER 1.Terminal layout 2.Pin function Input Output Note) High level Low level "H" or "L" Off state of three state output(High impedance) UPC1228HA(IC901):Head amp ANP1 NFB1 OUT1 OUT2 NFB2 ANP2 UPC1228HA 1-21...
- Page 22 KS-FX201 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan Printed in Japan (No.49589) 200101(V)
- Page 23 DIRECTION BOARD CP722 RELAY HEAD BOARD PROG-SW CP721 CJ901 TO SPEAKER TO LINE REAR OUT TO CD CHANGER CONNECTOR CP751 CN721 CP981 CJ921 IC901 HEAD AMPLIFIER Lch Rear SI/SO Lch Front UPC1228HA Lch Rear OUT IC751 IC981 CD CHANGER POWER AMP. HD74HC126P HA13158A BUS SI...
- Page 24 KS-FX201 < M E M O >...
- Page 25 KS-FX201 Standard schematic diagrams Receiver & System control circuit section *TU1 KRA102M-T Q989 QNZ0009-001 ACC.MUTE Q972 1SS119-041 MUTE KRA102M-T D973 CJ921 R163 R164 4.7uH Q161 1SS119-041 R165 2.2K 2SD2144S/VW/-T 2SD2144S/VW/-T 1SS119-041 R265 MUTE R757 2.2K Q261 BUS.INT R761 R263 R264...
- Page 26 KS-FX201 KS-FX201 Head amplifier circuit section CJ901 QGA2002C1-05 IC901 UPC1228HA C103 C203 R104 R204 330k 330k 100p 100p CP722 QGA2002F1-06 C901 CP721 QGB1214K1-06S CP901 QGB1214K1-06S Tape PB/Main signal NOTE:/s/C/jes/3161me.001 KS-FX200J/KS-F315EE/KS-FX201USERIES FSDH3161-006MW 2/3...
- Page 27 KS-FX201 LCD driver & Operation switch circuit section LCD1 CP701 QLD0145-001 VMC0335-001 R633 D623 R631 R634 COM1 R661 COM2 1.5k COM3 D603 D602 D601 IC651 C651 R632 C652 LC75823W 4.7/6.3 R662 C653 680p R601 R602 R603 R604 R605 S603 S601...
- Page 28 D782 S.METER D785 R990 SD/ST C985 Q987 COMP.OUT FM/AMVCC Q782 Q787 MUTEDRIVE Q988 R788 R755 D704 D705 R762 R754 R764 C706 D707 IC751 C701 R763 C786 C702 R753 D706 R759 X701 C703 R758 CJ701 R760 R756 D786 NOTE:KS-FX200J,KS-FX201 FSMW1067-0203 /d2/c/jes/1067ma/1067mo...
- Page 29 KS-FX201 LCD Driver & Operation switch board (Solder side) (Parts side) R602 S605 S604 S606 R607 S613 R615 S618 S617 S620 Note:KS-FX200,KS-FX201 /d2/c/jes/1077sw/1077mo...
- Page 30 KS-FX201 PARTS LIST [ KS-FX201 ] * All printed circuit boards and its assemblies are not available as service parts. Areas suffix U --------------------- Other Areas - Contents - Exploded view of general assembly and parts list 3- 2 Cassette mechanism assembly and parts list...
- Page 31 KS-FX201 Exploded view of general assembly and parts list Block No.
- Page 32 KS-FX201 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area FSJC1053-006 FRONT PANEL ZCKSFX12J-FB FRONT CHASS.ASSY FSJC1055-001 FRONT CHASSIS FSJC4003-027 CASSETTE LID VKW4947-002 DOOR SPRING QYSPSPT2625Z MINI SCREW FSKM2005-002 MECHA BRACKET QYSDST2605Z SCREW PCB+MECHA...
- Page 33 KS-FX201 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area FSJK3034-001 LCD LENS FSYH3022-001 LCD CASE FSKS3021-001 LENS CASE QYSDST2606Z SCREW REAR BKT+CONNECTOR QYSDST2606Z SCREW REAR BKT+CD IN JACK QYSDSF3006Z SCREW REAR BKT+PIN JACK...
- Page 34 KS-FX201 Cassette mechanism assembly and parts list Block No. CDS-363SJ1...
- Page 35 KS-FX201 Parts list (Cassette mechanism) Block No. M2MM 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 CONVERT ARM X-0363-6001S REEL BASE ASSY X-0363-6007S LEVER BRACKET (HD) X-0363-6003S TU GEAR ARM ASS...
- Page 36 YELLOW 55MM X-0363-7006S MOTOR ASSY 1-0363-7001S MUTE SWITCH 1-0363-7002S SLIDE SWITCH 1-0363-7008S SLIDE SW PWB 1-0036-7016S HEAD 1-0363-7005S POWER SWITCH 1-0036-7089S 6P WIRE ASY(JVC 1-0036-7088S 5P WIRE ASY(JVC 2-1816-0032-E8S LMW-S 2-1812-0030-D2S PSW-S 1-0036-5024S PSW(REEL)B 2-1712-0050-16S E RING 2-1712-5060-16S E RING 1-0363-7015S...
- Page 37 KS-FX201 Grease point 1/2 Grease FL-942 SW-902 SW522B FG-84M Reverse side...
- Page 38 KS-FX201 Grease point 2/2...
- Page 39 KS-FX201 Electrical parts list (Main board) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area QDX11EK-223Z C CAPACITOR C 933 QERF1AM-107Z E CAPACITOR 100MF 20% 10V QEKJ1HM-104Z E CAPACITOR 0.1MF 20% 50V...
- Page 40 KS-FX201 Electrical parts list (Main board) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area 2SA1706/ST/-T TRANSISTOR R 703 QRE141J-473Y C RESISTOR 47K 5% 1/4W KRC102M-T D.TRANSISTOR R 704 QRE141J-103Y C RESISTOR...
- Page 41 KS-FX201 Electrical parts list (LCD/Switch board) Block No. 02 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 651 NCB21EK-104X C CAPACITOR S 602 NSW0066-001X TACT SWITCH C 652 NBE20JM-475X TS E CAPACITOR S 603...
- Page 42 KS-FX201 < M E M O > 3-13...
- Page 43 KS-FX201 Packing materials and accessories parts list Block No. Block No. A1,A2 KIT: A3 ~ A7 3-14...
- Page 44 KS-FX201 Parts list (Packing) Block No. M3MM Item Parts number Parts name Q'ty Description Area FSPG4002-001 POLY BAG INSTRUCTIONS QPA00801205 POLY BAG QPC03004315P POLY BAG GE30123-024A CARTON FSPH1018-002 PAPER CUSHION Parts list (Accessories) Block No. M4MM Item Parts number Parts name...