Jvc-KSFX-460-R-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL CASSETTE RECEIVER No.49632 Mar. 2001 COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD. KS-FX460R /KS-FX463R KS-FX460R/KS-FX463R Area Suffix EXCentral Europe This model is KS-FX460R/KS-FX463R EX that is added to the preceding model, theKS-FX460R/KS-FX463R E . Therefore the service manual fo

2、r this model is consisting of Parts list only. For others, please refer to the service manual of KS-FX460R/KS-FX463R E (issue No.49578). RadioFans.CN 收音机爱 好者资料库 KS-FX460R/KS-FX463R VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwat

3、ari-machi,Maebashi-city,371-8543,Japan (No.49632) 200103 E Version Qty EX Version Parts number Block No.M4MM ItenParts name A 2 A 3 INST.BOOK (LANGUAGE) INSTALL.MANUAL (LANGUAGE) GET0039-002A (SPA,ITA,SWE,FIN) GET0039-005A (SWE,FIN) - - Parts list (Accessories) 1 1 A P3-15 E Version EX Version Parts

4、 number Block No.M3MM ItenParts name P1POLY BAGFSPG4002-001 (QTY 2) FSPG4002-001 (QTY 1) Parts list (Packing) A P3-15 RadioFans.CN 收音机爱 好者资料库 SERVICE MANUAL CASSETTE RECEIVER No.49578 Dec. 2000 COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD. KS-FX460R / KS-FX463R KS-FX460R/KS-FX463R Area Suffix EContin

5、ental Europe Contents Safety precaution Disassembly method Adjustment method Description of major ICs 1-2 1-3 1-13 1-1722 KS-FX460R GREEN GREEN Difference point LCD LED (without power button) KS-FX463R AMBER AMBER RadioFans.CN 收音机爱 好者资料库 KS-FX460R/KS-FX463R 1-2 ! Burrs formed during molding may be l

6、eft over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Safety precaution KS-FX460R/KS-FX463R 1-3 Press the eject button in the lower right part of the front panel. Remove the front panel assembly from the body. 1. Removing the f

7、ront panel assembly (See Fig.1) Prior to performing the following procedure, remove the front panel assembly. Release the four joint tabs a on both sides of the front chassis assembly and remove the front chassis assembly toward the front. 1. Removing the front chassis assembly (See Fig.2 and 3) Dis

8、assembly method Fig.1 Fig.2 Fig.3 Front panel assembly Eject button Tab a Tab a Front chassis assembly Front chassis assembly Heat sink Tab a Tab a KS-FX460R/KS-FX463R 1-4 Remove the three screws A on the left side of the body. 1. Removing the heat sink (See Fig.4) Prior to performing the following

9、procedure, remove the front panel assembly, the front chassis assembly and the heat sink. Turn over the body and unjoint the five joints b with the bottom cover and the body using a screwdriver. 1. Removing the bottom cover (See Fig.5 and 6) Fig.4 Fig.5 Fig.6 Heat sink AA Joints b Joints b Joint b J

10、oints b Joints b Joint b Bottom cover Bottom cover Rear panel Rear panel KS-FX460R/KS-FX463R 1-5 Prior to performing the following procedure, remove the front panel assembly, the front chassis assembly, the heat sink and the bottom cover. Remove the screw B, the two screws C and the two screws D att

11、aching the rear bracket on the back of the body. Remove the rear bracket. Remove the two screws E attaching the main board on the bottom of the body. Disconnect connector CN901 and CN902 on the main board in the direction of the arrow. 1. 2. Removing the main board (See Fig.7 and 8) Prior to perform

12、ing the following procedure, remove the front panel assembly, the front chassis assembly, the heat sink, the bottom cover and the main board. Remove the four screws F attaching the cassette mechanism section on the back of the top chassis. 1. Removing the cassette mechanism section (See Fig.9) Fig.7

13、 Fig.8 Fig.9 Rear bracket B D D C C Main board E E CN902 CN901 Cassette mechanism section FF FF Top chassis KS-FX460R/KS-FX463R 1-6 Prior to performing the following procedure, remove the cassette mechanism section. Disconnect the wire from connector CJ901 on the head amplifier board. Remove the scr

14、ew G and slide the head amplifier board in the direction of the arrow to unjoint the two joints c with the mechanism bracket. 1. 2. Removing the head amplifier board (See Fig.10) Prior to performing the following procedure, remove the cassette mechanism section. Disconnect the wire from connector CJ

15、902 on the motor board. Remove the screw H and slide the motor board in the direction of the arrow to unjoint the joint d with the mechanism bracket. 1. 2. Removing the motor board (See Fig.11) Prior to performing the following procedure, remove the cassette mechanism section, the head amplifier boa

16、rd and the motor board. Remove the four screws I on the bottom of the cassette mechanism section. 1. Removing the cassette mechanism assembly (See Fig.12) Fig.10 Fig.11 Fig.12 G Joint c Joint c Head amplifier board CJ901 Motor board CJ902 Joint d H Mechanism bracket I I I KS-FX460R/KS-FX463R 1-7 Pri

17、or to performing the following procedure, remove the front panel assembly. Remove the four screws J attaching the rear cover on the back of the front panel assembly. Unjoint the six joints e with the front panel and the rear cover. Remove the control switch board on the back of the front panel. 1. 2

18、. 3. Removing the control switch board (See Fig.13 to 15) Fig.13 Fig.14 Fig.15 J JJ J Rear cover Joints e Joints e Front panel Rear cover Cntrol switch board Front panel KS-FX460R/KS-FX463R 1-8 Prior to performing the following procedures, remove the head amplifier board, the relay board and the mec

19、hanism bracket. Unsolder the three wires a on the direction switch board. Remove the one screw A attaching the direction switch board. 1. 2. Removing the direction switch board (See Fig.1) Remove the screw B attaching the FF / REW lever assembly on the back of the cassette mechanism assembly. Remove

20、 the screw C on the upper side of the FF / REW lever assembly. Lift and pull forward the FF / REW lever assembly to disengage the joints b, c, d and e. 1. 2. 3. Removing the FF / REW lever assembly (See Fig.1) Reattach the FF / REW lever assembly to the joint c on the back of the chassis. Reattach t

21、he pinch-roller shaft e, the change lever d and the return link e to the chassis. 1. 2. Reattaching the FF / REW lever assembly (See Fig.1) C FF / REW lever assembly Joint c Joint b B A Direction switch board Joint d Joint e Solding a Fig.1 KS-FX460R/KS-FX463R 1-9 Prior to performing the following p

22、rocedure, remove the direction switch board and the FF / REW lever assembly. Remove the screw D attaching the playback head. Remove the C washer and pull out the FF roller. Remove the S support plate, the A arm spring (a) and (b), the playback head. 1. 2. 3. Removing the playback head (See Fig.2) Th

23、e A arm spring (a) differs from the A arm spring (b). ATTENTION: Prior to performing the following procedure, remove the direction switch board and the FF / REW lever assembly. Remove the P arm spring (f) in the pinch-roller (F) assembly from the chassis. Remove the P arm spring (r) in the pinch-rol

24、ler (R) assembly from the chassis. Draw out the pinch roller (F) and (R) assembly from the shaft. 1. 2. 3. Removing the pinch-roller (R) and (F) assembly (See Fig.2) The P arm spring (f) differs from the P arm spring (r). ATTENTION: The pinch roller (F) assembly differs from the pinch roller (R) ass

25、embly. ATTENTION: A arm spring (b) A arm spring (a) Pinch-roller (R) assembly Pinch-roller (F) assembly Shaft Shaft S support plate D C washer P arm spring (f)P arm spring (r) Remove the P arm spring (f) from the chassis. Remove the P arm spring (r) from the chassis. Playback head FF roller Fig.2 KS

26、-FX460R/KS-FX463R 1-10 Prior to performing the following procedure, remove the FF / REW lever assembly. From the rear of the unit, bend the two tabs f outwards and disengage the two joints g in the direction of the arrow. Push the eject lever and remove the cassette holder from the playback head. Di

27、sengage the two joints h of the cassette hanger / cassette holder and the eject lever in the direction of the arrow. Lift the cassette hanger / cassette holder and disengage the joint i of the return link and the eject lever. 1. 2. 3. Removing the cassette hanger / cassette holder (See Fig.3) Unsold

28、er the two wires j on the motor assembly.1. Turn over the cassette mechanism assembly and remove the main belt and the sub-belt from the motor pulley. 2. Remove the two screws G attaching the motor assembly. 3. Removing the motor assembly (See Fig.5) To replace the sub-belt, remove the main belt and

29、 the sub-belt from the motor pulley. Then remove the three screws E and one screw F. Replace with a new sub-belt while lifting the reel base assembly slightly. ATTENTION: Prior to performing the following procedure, remove the FF / REW lever assembly and the cassette hanger / cassette holder. Remove

30、 the C washer and pull out reel disc assembly.1. Removing the reel disc assembly (See Fig.4) Replace with a new C washer when reattaching. ATTENTION: The main belt can now be removed.ATTENTION: Cassette holder Cassette hanger Return link Joint i Eject lever Joint h Joint h Joint g Joint g Tab f Tab

31、f Reel disc assembly Flywheel (BF) Flywheel (BR) E E E F G G Main-belt Reel base assembly Sub-belt Motor assembly Motor pulley Solding j Fig.3 Fig.4 Fig.5 C washer C washer Chassis KS-FX460R/KS-FX463R 1-11 Raise the part k of the reel base assembly slightly and remove the selector link (B) on the fr

32、ont side of the cassette mechanism assembly by turning it as shown in Fig.10. Remove the three screws E and the one screw F on the underside of the cassette mechanism assembly. 1. 2. Removing the reel base assembly (See Fig.5 and 6) Prior to performing the following procedure, remove the cassette ha

33、nger / cassette holder. From the upper side of the cassette mechanism assembly, remove the C washer from each shaft of the flywheel (BF) and (BR). Turn over the cassette mechanism assembly and remove the main belt. Pull out the flywheel (BF) and (BR) downward respectively. 1. 2. Removing the Flywhee

34、l (BF) and (BR) assembly (See Fig.4 and 5) The reel base assembly is not repairable. Handle with care. ATTENTION: Selector link (B). Inside of the reel base assembly Reel disc assembly Flywheel (BF) Flywheel (BR) E E E F G G Main-belt Reel base assembly Sub-belt Motor assembly Motor pulley Solding j

35、 Fig.4 Fig.5 Fig.6Fig.7 C washer C washer Pinch-roller (R) assembly Turn the selector link (B). k KS-FX460R/KS-FX463R 1-12 Unsolder the two wires l on the mute switch board on the back of the cassette mechanism assembly. Remove the screw H attaching the mute switch board. 1. 2. Removing the mute swi

36、tch board (See Fig.8) Prior to performing the following procedure, remove the motor assembly. Unsolder the two wires m on the power switch on the side of the cassette mechanism assembly. Remove the screw I attaching the power switch. 1. 2. Removing the power switch (See Fig.9) Cassette mechanism ass

37、embly Solding l H Mute switch board Solding m I Rower switch Cassette mechanism assembly Rower switch Motor assembly Fig.8 Fig.9 KS-FX460R/KS-FX463R 1-13 Adjustment method Test Instruments reqired for adjustment 1. Digital osclloscope(100MHz) 2. Frequency Counter meter 3. Electric voltmeter 4. Wow &

38、 flutter meter 5. Test Tapes VT724. for DOLBY level measurement VT739.For playback frequency measurement VT712.For wow flutter & tape speed measurement VT703. For head azimuth measurement 6. Torque gauge. Cassette type for CTG-N (mechanism adjustment) Measuring conditions(Amplifier section) Power su

39、pply voltage. DC14.4V (10.5 - 16V) Load impedance . 4 (2Speakers connection) Line out. 20k Standard volume position Balance and Bass,Treble volume .Fader :Center(Indication0) Loudness,Dolby NR,Sound,Cruise:Off Volume position is about 2V at speaker output with following conditions.Playback the test

40、tape VT721. AM mode999kHz/62dB,INT/400Hz,30% modulation signal on recieving. FM mono mode97.9MHz/66dB,INT/400Hz,22.5kHz deviation pilot off mono FM stereo mode 1kHz,67.5kHz dev. pilot7.5kHz dev. Output level0dB(1 V,50 /open terminal) KS-FX460R/KS-FX463R 1-14 Playback head Head azimuth screw Fixed sc

41、rew Height adjusting screw c Height adjusting screw b Height adjusting screw a Arrangement of adjusting & test points Head section view Cassette mechanism (Surface) Tape speed adjust Motor assembly Playback head Azimuth screw KS-FX460R/KS-FX463R 1-15 Extension cord : EXTKSRT002-6P EXTKSRT002-6P Fron

42、t panel assembly Main board Cassette mechanism Information for using a car audio service jig 1.For 1995 and 1996 , were 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

43、type of extension cord is needed to check operation of the mechanism assembly after disassembly. 3.Extension cord : EXTKSRT002-6P ( 6 pin extension cord ) For connection between mechanism assembly and main board assembly. Check for mechanism driving section such as motor ,etc. Disassembly method 1.R

44、emove the bottom cover. 2.Remove the front panel assembly. 3.Remove the top cover . 4.Install the front panel. 5.Confirm that current is being carried by connecting an extension cord jig. Note Available to connect to the CN701 connector when in- stalling the front panel. KS-FX460R/KS-FX463R 1-16 Mec

45、hanism adjustment section ItemAdjusting & Confirmation MethodsAdjustStd. Value Head Height Adjustment Note Adjust the azimuth directly. When you adjust the height us- ing a mirror tape, remove the cassette housing from the mechanism chassis. After installing the cassette housing, perform the azimuth

46、 adjustment. 1.load the mirror tape ( SCC-1659 ). Adjust with height adjustmentscrew (a) and azimuth adjustment screw (b) so that line A of the mirror tape runs in the center between Lch and Rch in the reverse play mode. 2.After switching from REV to FWD then to REV, check that the head position set

47、 in procedure 1 is not changed. *If the position has shifted, adjust again and check. 3.Adjust the azimuth screw (b) so that line B of the mirror tape runs in the center between Lch and Rch in the forward play mode. Head Azimuth Adjustment 1.Load the test tape ( VT724: 1kHz ) and play it back in the

48、 reverse play mode. set the Rch output level to maximum. 2.Load the test tape ( VT703: 10kHz ) and play it back in the forward play mode. Adjust the Rch and Lch output levels tomaximum, with azimuth adjustment screw (b). In this case, the phase difference should be within 45 . 3.Engage the reverse m

49、ode and adjust the output level to maximum, with azimuth adjustment screw (c). *The phase difference should be 45_Kor more. 4.When switching between forward and reverse modes, the difference between channels should be within 3dB. *Between FWD Lch and Rch, REV Lch and Rch. 5.When the test tape ( VT721 : 315Hz ) is played back, the level differenc