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Instruction Manual
SERVICE MANUAL
CASSETTE RECEIVER
KS-FX915R/KS-FX815
KS-FX915R
KS-FX815
Difference point
KS-FX915R
KS-FX815
Contents
Safety precaution
Location of main parts
Disassembly method
Adjustment method
Description of major ICs
COPYRIGHT
KS-FX915R
DISP
DISP
TP
TP
RDS
RDS
PTY
PTY
7
8
9
10
11
12
MO
KS-FX815
LOUD
LOUD
DISP
DISP
SCAN
SCAN
7
8
9
10
11
12
MO
RDS
Dimmer Beep
O
O
O
X
X
X
2001 VICTOR COMPANY OF JAPAN, LTD.
KS-FX915R/KS-FX815
DAB
Area Suffix
Russian Federation
EE
LCD
Remocon
O
Color
Nega
X
1- 2
1- 3
1- 4
1-11
1-14
No.49613
Feb. 2001
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Summary of Contents for JVC KS-FX915R
- Page 1 KS-FX915R/KS-FX815 SERVICE MANUAL CASSETTE RECEIVER KS-FX915R/KS-FX815 KS-FX915R KS-FX915R DISP DISP KS-FX815 KS-FX815 LOUD LOUD DISP DISP SCAN SCAN Area Suffix Russian Federation Difference point Dimmer Beep Remocon KS-FX915R Color KS-FX815 Nega Contents Safety precaution 1- 2 Location of main parts...
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Page 2: Safety Precaution
KS-FX915R/KS-FX815 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-FX915R/KS-FX815 Location of main parts Control unit Display Control unit Main unit Changer control RCA jack connector Antenna Main board I/O connector jack Tuner pack Power IC Main board assembly Main board assembly Connector to controller Connector to controller Cassette mechanism Cassette mechanism C.motor assembly...
- Page 4 KS-FX915R/KS-FX815 Disassembly method Removing the front chassis (See Fig.1) 1. Remove two screws A and insert a screwdriver to the joints a on the side of the front chassis and two joints b on the right side, then detach the front chassis toward the front side.
- Page 5 KS-FX915R/KS-FX815 CP401 Main amplifier board Removing the main amplifier board assembly (See Fig.4 and 5) Remove the front chassis. Remove the bottom cover. Remove the two screws C attaching the main amplifier board assembly on the bottom of the body.
- Page 6 KS-FX915R/KS-FX815 Cassette mechanism ass’y <Removal of the cassette mechanism> Removing the head amplifier board. Head relay (See Fig.1 and 2) board For the 6pin wire extending from connector CN402 on the head amplifier board, disconnect it from the head relay board.
- Page 7 KS-FX915R/KS-FX815 Head relay board Removing the head relay board (See Fig.4) Unsolder the soldering b on the head relay board. Remove the screw C attaching the head relay board. Remove the head relay board in the direction of the Joint c Soldering b arrow while releasing the two joints c.
- Page 8 KS-FX915R/KS-FX815 Cassette holder and holder arm Joint h Shaft Joint h Shaft Removing the play head (See Fig.9) Prior to performing the following procedure, remove the head relay board and the sub chassis. Fig.8 Remove the two screws F attaching the play head Pinch roller ass’y...
- Page 9 KS-FX915R/KS-FX815 Removing the flywheel Cassette mechanism ass’y Reel disc board (See Fig.10 and 12) Soldering j Prior to performing the following procedure, remove the head relay board, the load arm, the sub chassis, the cassette holder, the holder arm and the reel disc Tab k board.
- Page 10 KS-FX915R/KS-FX815 Push aside the gear and reattach the reel disc Ass’y( ). Removing the reel disc ass’y( ) (See Fig.12 to 15) ATTENTION: Prior to performing the following procedure, remove the reel disc ( ). Release the plate from the three tabs o.
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Page 11: Adjustment Method
KS-FX915R/KS-FX815 Adjustment method Tuner section Test Instruments reqired for adjustment BAND STEP 1.Digital osclloscope(100MHz) FM : 100kHz (Seek), 50kHz (Manual) 2.Frequency Counter meter AM : 9kHz step 3.Electric voltmeter 4.Wow & flutter meter 5.Test Tapes Preset Memory Initialization VT724 for DOLBY level measurement... - Page 12 KS-FX915R/KS-FX815 Arrangment of adjusting Head amplifier board section (Reverse side) VR402:Rch VR401:Rch (Dolby NR level adj) (Dolby NR Frequency response adj) B402 R411 C409 VR401 VR402 C412 C410 C411 B416 R413 C404 C418 C413 Q401 R424 C405 CP402 R421 R408...
- Page 13 KS-FX915R/KS-FX815 Item Conditions Adjustment and Confirmation methods S.Values Adjust Head Head height adjustment Test tape: azimuth Adjust the azimuth directly. When you SCC-1659 adjustment adjust the height using a mirror tape, VT703(10kHz) remove the cassette housing from the mechanism chassis. After installing the cassette housing, perform the azimuth adjustment.
- Page 14 KS-FX915R/KS-FX815 Descrption of major ICs TEA6320T-X (IC161) : 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 15 KS-FX915R/KS-FX815 SAA6579T-X(IC71):RDS Detector 2.Pin Function 1.Terminal Layout Symbol Function QUAL RDCL Non connect QUAL RDDA RDS data output RDDA Vref OSCO Reference voltage output Vref OSC1 Multiplex signal input VDDA +5V Supply voltage for analog VDDA Ground for analog part (0V)
- Page 16 KS-FX915R/KS-FX815 LA4743K(IC301):Power AMP 1.Block diagram 2200 F 0.047 F Vcc 1/2 Vcc 3/4 IN 1 OUT 1+ OUT 1- PWR GND1 Protective circuit OUT 2+ IN 2 OUT 2- PWR GND2 ST BY Stand by Switch ST ON Mute 4.7K...
- Page 17 KS-FX915R/KS-FX815 2.Terminal layout 3.Pin function Pin No. Symbol Function Header of IC Power GND OUTRR- Outpur(-) for front Rch STBY Stand by input OUTRR+ Output (+) for front Rch VCC1/2 Power input Output (-) for rear Rch OUTRF- Power GND...
- Page 18 KS-FX915R/KS-FX815 UPD178018AGC-586 (IC701) : Main system control CPU UPD178018AGC-604 (IC701) : Main system control CPU 1. Pin layout 2. Pin function Pin No. Port Name Descriptions KEY 0 Key input 0 KEY 1 Key input 1 KEY 2 Key input 2...
- Page 19 KS-FX915R/KS-FX815 UPD178018AGC-551 (IC701) : Main system control CPU UPD178018AGC-551 (IC701) : Main system control CPU Pin No. Port Name Descriptions FF/REW Output for input signal level switching for MS L : FF,REW H : PLAY FWD,REV running direction switch signal input DOLBY Dolby on "H"...
- Page 20 KS-FX915R/KS-FX815 HD74HC126FP-X (IC801) : Buffer 1.Terminal layout 3.Pin function Input Outout 2.Block diagram Output Input Output Sample as Load Circuit 1 Output Sample as Load Circuit 1 Output Sample as Load Circuit 1 1-20...
- Page 21 KS-FX915R/KS-FX815 HA13164(IC901):REGULATOR 1.Terminal layout 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 2.Block diagram 100u 0.1u BATT.DET OUT ANT OUT Surge Protector 0.1u EXT OUT COMPOUT BIAS 0.1u VDD OUT ANT CTRL 0.1u...
- Page 22 KS-FX915R/KS-FX815 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan 200102(V) (No.49613)
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Page 23: Schematic Diagrams
KS-FX915R/KS-FX815 SCHEMATIC DIAGRAMS CASSETTE RECEIVER KS-FX915R/KS-FX815 CD-ROM No.SML200102 KS-FX915R KS-FX915R DISP DISP KS-FX815 KS-FX815 Area Suffix LOUD LOUD DISP DISP Russian Federation SCAN SCAN Difference point Dimmer Beep Remocon KS-FX915R Color KS-FX815 Nega Contents Block diagram Standard schematic diagrams Printed circuit boards No.49613SCH... - Page 24 IC161 OUTLF LINE TU_L TUNER E.VOL OUTLR TU_R PACK OUTRF EO,FM/AMOSC OUTRR IFC,MONO,SD/ST IC71 IFREQ,S.METER SUBMO+ SUBMO+ IC402 MAIN DETECTOR RDSCK SUBMO- SUBMO- DRIVER MOTOR OUTLF RDSDA OUTLR TAPE_L,TAPE_R TAPEIN,MODE,REEL OUTRF MOTOR MOTOR,STANDBY EVOLCLK OUTRR EVOLDA METAL IC701 FF/REW IC301 SWITCH POWER DOLBY...
- Page 25 < M E M O >...
- Page 26 KS-FX915R/KS-FX815 Standard schematic diagrams Main amp section LA4743K IC301 QNN0175-001 J321 C321 0.22 C322 R301 0.22 C308 2.2/50 QNB0100-001 C309 R302 1/50 TU.R 2.2/50 1/50 TU.L 4.7u 0.1/50 2SC2412K/R/-X C318 R311 2.2/50 2SA1037AK/RS/-X R312 2.2/50 C319 R881 D353 C181 4.7/50...
- Page 27 KS-FX915R/KS-FX815 Mecha control section Q403 2SB1322/RS/-T Q402 DTC114EKA-X R401 CJ403 QGF1219F1-10S 0.015 C411 Q401 R418 22/16 C409 IC401 R416 910K IC402 LB1641 C422 CJ402 0.015 C410 C425 0.01 C424 QGB1214K1-18S CJ401 TAPE SIGNAL...
- Page 28 KS-FX915R/KS-FX815 LCD & Key control section QNZ0449-001 IC602 EN601 RPM6938-SV4 QSW0928-001 R657 REMOCON ACC5V ACC5V R658 D657 ENC1 ENC2 UDZD6.58-X ENC2 LCDCE R661 3.3K ENC1 LCDDA R662 3.3K R652 R653 R654 3.3K LCDCL R663 1K( 1/8W) KEY2 KEY1 R651 KEY0...
- Page 29 KS-FX915R/KS-FX815 Printed circuit boards Main board Front board ( Front side) D601 IC602 IC901 D629 R606 L901 CP901 J321 S605 R607 S613 S614 S608 C904 D628 R605 C911 R604 D611 D901 D613 D623 D622 C306 S615 R901 CP401 L-CH D624...
- Page 30 KS-FX915R/KS-FX815 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.49613SCH) 200102(V)
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Page 31: Parts List
KS-FX915R/KS-FX815 PARTS LIST [ KS-FX915R ] [ KS-FX815 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix EE --------- Russian Federation - Contents - Exploded view of general assembly and parts list... - Page 32 KS-FX915R/KS-FX815 Exploded view of general assembly and parts list Block No. Mecha control board 71 72 KS-FX915R only Main bard Front board KS-FX915R only...
- Page 33 1 FOR OPEN LEVER FSKW4013-002 FSJC3014-001 CASSETTE LID 1 NO PRINTING VKW4947-002 DOOR SPRING GE10005-001B FRONT PANEL GE30113-012B FINDER LENS 1 KS-FX915R GE30113-013A FINDER LENS 1 KS-FX815 FSJK4009-001 REMOTE LENS 1 KS-FX915R GE20104-001B PRESET BUTTON 1 1-6 (2 COLOUR) POWER BUTTON...
- Page 34 KS-FX915R/KS-FX815 Parts list(General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area LV40833-001A SPACER GE30104-001A RIM LENS 1 FOR KNOB GE30115-002A EJECT BUTTON VKW3001-330 COMP.SPRING 1 FOR EJECT BUTTON GE30116-001A DETACH BUTTON VKW3001-330 COMP.SPRING 1 FOR DETACH BUTTON...
- Page 35 KS-FX915R/KS-FX815 Cassette mechanism assembly and parts list Block No. CDS-801 CFD-409 99 100 101 102 FG-84M FG-84M SW-902 FG-84M SW-902 CFD-409 CFD-409 CFD-409 SW-522B FG-84M FG-84M SW-522B FG-84M FG-84M LEN-315Y2 LEN-315Y2 CFD-409 LEN-315Y2 LEN-315Y2 FG-84M FG-84M FG-84M FG-84M FG-84M FG-84M...
- Page 36 KS-FX915R/KS-FX815 Grease point 1/2 SW-902 SW-522B FG-84M CFD-409 LEN-315Y2 FG-84M SW-902 SW-902 SW-902 FG-84M FG-84M SW-902 FG-84M SW-902 FG-84M FG-84M...
- Page 37 KS-FX915R/KS-FX815 Grease point 2/2...
- Page 38 KS-FX915R/KS-FX815 Parts list( Cassette mechanism ) Block No. M2MM Item Parts number Parts name Q'ty Description Area X-0801-1003S MAIN CHASSIS AS X-0801-1002S SLIDE CHASSIS A X-0801-1008S SIDE BKT ASS'Y X-0801-1010S EJECT CAM LIMIT X-0801-1013S CASSETTE HANGER 1-0801-6002S FLYWHEEL ASSY F...
- Page 39 KS-FX915R/KS-FX815 Parts list( Cassette mechanism ) Block No. M2MM Item Description Parts number Parts name Q'ty Area 1-0801-4008S REEL DRIVER SPG 1-0801-4009S LOAD ARM SPG HOLDER STAB SPG 1-0801-4011S 1-0801-5001S BELT 1-0801-5002S FELT 1 7.5*18.5*1.0 1-0801-5003S AZIMUTH SCR FELT 1 11*18.5*1.0...
- Page 40 KS-FX915R/KS-FX815 Electrical parts list(Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area BZ841 QAN0009-001Z BUZZER KS-FX915R C 307 QERF1HM-475Z E CAPACITOR 4.7MF 20% 50V QERF1CM-107Z E CAPACITOR 100MF 20% 16V...
- Page 41 KS-FX915R/KS-FX815 Electrical parts list(Main board) Block No. 01 Item Remarks Item Parts number Parts name Remarks Area Parts number Parts name Area D 706 MTZJ5.6B-T2 ZENER DIODE Q 977 2SA1037AK/RS/-X TRANSISTOR D 707 MTZJ5.6B-T2 ZENER DIODE NRS181J-330X MG RESISTOR D 708 MTZJ5.6B-T2...
- Page 42 KS-FX915R/KS-FX815 Electrical parts list(Main board) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area R 322 NRSA63J-102X MG RESISTOR R 804 NRSA63J-223X MG RESISTOR R 323 NRS181J-222X MG RESISTOR R 805 NRSA63J-104X...
- Page 43 KS-FX915R/KS-FX815 Block No. 02 Electrical parts list(Mecha control board) Item Parts number Parts name Remarks Area C 401 NDC31HJ-101X C.CAPACITOR C 402 NDC31HJ-101X C.CAPACITOR C 403 NDC31HJ-101X C.CAPACITOR C 404 NDC31HJ-101X C.CAPACITOR C 405 NDC31HJ-101X C.CAPACITOR C 406 NDC31HJ-101X C.CAPACITOR...
- Page 44 KS-FX915R/KS-FX815 Block No. 03 Electrical parts list(Front board) Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 601 NBE20JM-475X TS E CAPACITOR D 655 1SS355-X DIODE C 602 NCB31HK-103X C CAPACITOR D 656 1SS355-X...
- Page 45 KS-FX915R/KS-FX815 Block No. 03 Electrical parts list(Front board) Item Parts number Parts name Remarks Area S 601 NSW0066-001X TACT SWITCH S 602 NSW0066-001X TACT SWITCH S 603 NSW0066-001X TACT SWITCH S 604 NSW0066-001X TACT SWITCH S 605 NSW0066-001X TACT SWITCH...
- Page 46 KS-FX915R/KS-FX815 Packing materials and accessories parts list Block No. Block No. KIT:A4~A8 A1,A2,A3 KS-FX915R only Remocon A10 : Battery 3-16...
- Page 47 POLY BAG FSYH4036-068 SHEET 1 FOR HARD CASE POLY BAG 1 FOR SET QPC03004315P GE30123-013A PACKING CASE 1 KS-FX815 GE30123-014A PACKING CASE 1 KS-FX915R EPS CUSHION GE10008-001A Parts list(Accessories) Block No. M4MM Item Parts number Parts name Q'ty Description Area GET0018-001A...