Jvc-KSAX-6700-Service-Manual(1) 电路图 维修手册.pdf

《Jvc-KSAX-6700-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Jvc-KSAX-6700-Service-Manual(1) 电路图 维修手册.pdf（25页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE MANUAL KS-AX6700KS-AX6700 No. 49559 Jun. 2000 KS-AX6700 POWER AMPLIFIER Printed in Japan 200006(S) (No. 49559) Contents Safety Precaution Location of main parts Removal of main parts Adjustment method Wire connection diagram 1-2 1-3 1-5 1-8 1-9 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRO

2、NICS DIVISION PERSONAL & MOBILE NETWORK B.U. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD. This service manual is printed on 100% recycled paper. Areas suffix Caution If electricity is connected during disassembly, it must be a no load current. If it is

3、load current, be sure to attach a heat sink to the power-amp IC. This will be damaged if the above precautions are not followed, as it does not have a sub heat sink attached to it. J - Nothem America E - Continental Europe RadioFans.CN 收音机爱 好者资料库 KS-AX6700 1-2 Safety precaution !CAUTION Burrs formed

4、 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. RadioFans.CN 收音机爱 好者资料库 KS-AX6700 1-3 Location of main parts Volume knob Control panel Switch knob Heat sink Rear panel Input for power Fuse Output t

5、erminal Heat sink Front panel Low input(L) High input connector Heat sink Low input(R) RadioFans.CN 收音机爱 好者资料库 KS-AX6700 1-4 CCFL P.C. board Wire assemby (from Main) Main P.C. board GND wire Heat sink (Bottom view) Sub1 P.C. board Main P.C. board Sub2 P.C. board 2pin connector (to CCFL P.C. board) K

6、S-AX6700 1-5 From the bottom side of the main unit, remove the 4 screws A retaining the bottom cover. Then remove the 6 screws B retaining the bottom cover. Remove the bottom cover. 1. 2. 3. If electricity is connected during disassembly, it must be a no load current. If it is load current, be sure

7、to attach a heat sink to the power-amp IC. This will be damaged if the above precautions are not followed, as it does not have a sub heat sink attached to it. CAUTION: Removal of main parts Removing the bottom cover (see Fig. 1) Remove the bottom cover from the main unit. Loosen and remove the 2 scr

8、ews C retaining the top plate on the main unit. (Stoppers are attached to the backs of the C screws so that they cannot be removed easily.) 1. 2. Remove the 3 volume knobs on top of the control panel. If it cannot be pulled out easily, insert a scale or suitable lever between the base of the volume

9、knob and the control panel so that the volume knob is raised a little above the surface and then remove it. (Be careful when inserting a lever etc. not to scratch the surface of the control panel). Remove the 4 screws D retaining the control panel. Then detach the control panel and the switch knob.

10、3. 4. Removing the main P.C. board (see Fig. 2 to 8) (Side view) Scale or suitable lever D Top plate C Volume knob Control panel Bottom cover B Fig. 1 Fig. 3 Fig. 2 Fig. 4 A D C A B Volume knob Switch knob KS-AX6700 1-6 Remove the 6 screws E retaining the panels on both sides of the main unit. 5. To

11、 remove the wire assy, lift up the main P.C. board a little. 7. Remove the 13 screws F attaching the main P.C. board to the bottom of the main unit. (The GND wire that protrudes from the main P.C.board must be re-installed to its original position during re-assembly.) 6. Fig. 7 Fig. 5 GND wire Main

12、P.C. board Main P.C. board Wire assemby F F Rear panel E Fig. 6 Front panel E Fig. 8 (Side view) KS-AX6700 1-7 Remove the bottom cover. Then remove the Main P.C. board. From the bottom side of the main unit, remove the 4 screws G retaining the CCFL cover. 1. 2. 3. Then remove the insulation sheet on

13、 top of the CCFL P.C. board. 4. Remove the 4 screws H retaining the CCFL P.C. board. 5. Remove the CCFL P.C. board by sliding it a little towards the arrow mark. 6. Removing the CCFL board (see Fig. 9 to 12) Fig. 9 Fig. 10 CCFL cover G GG H CCFL P.C. board Insulation sheet Fig. 11 CCFL P.C. board H

14、Fig. 12 This section is cought by the portion. KS-AX6700 1-8 Adjustment method 1. . Check the voltage and frequency of the secondary toroidal coil. 2.Measure the secondary toroidal coil, if the standard frequency value of 24.35 kHz 10 Hz is not attained, measure the R760 terminal, then adjust the VR

15、701 so that the R760 terminal becomes 24.25 kHz 10Hz. Note: TEST SET FREQUENCY COUNTER MAIN PCB (+) (-) POWER SUPPLY 14.4V R760 Measuring Points 88Vp-p 2.5V DC/DC CONVERTER SECOND GENERATOR SWITCHING TEST ITEM VOLTAGE TEST FREQUENCY CHECK 88Vp-p2.5V 24.350KHz10Hz OSCILLOSCOPE VOLT/DIV: 10 TIME/DIV:

16、10mcec VARIABLE: MINIMUM SPECIFICATIONCONDITION FREQUENCY:24.35kHz 10Hz VOLTAGE VALUE:55Vp-p When measuring, adjust and apply power with no signal or load on each board. KS-AX6700 1-9 Wire connection diagram HIGH INPUT connector WHITE WHITE/BLACK GRAY GRAY/BLACK GND+12V CCFL PCB MAIN PCB CCFL L R RE

17、D BLACK SERVICE MANUAL KS-AX6700KS-AX6700 No. 49559 Jun. 2000 KS-AX6700 POWER AMPLIFIER Printed in Japan 200006(S) (No. 49559) Contents Safety Precaution Location of main parts Removal of main parts Adjustment method Wire connection diagram 1-2 1-3 1-5 1-8 1-9 VICTOR COMPANY OF JAPAN, LIMITED MOBILE

18、 ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK B.U. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD. This service manual is printed on 100% recycled paper. Areas suffix Caution If electricity is connected during disassembly, it must be a no load current. I

19、f it is load current, be sure to attach a heat sink to the power-amp IC. This will be damaged if the above precautions are not followed, as it does not have a sub heat sink attached to it. J - Nothem America E - Continental Europe KS-AX6700 2-1 Block diagram R-IN L-IN R L HI-INPUT INPUT AMP U101 -A

20、U101 -B U102 -A U102 -B U106 -A U206 -A VR103A VR103B U103 -A U103 -B U104 -A U104 -B VR102A VR102B U105 -A U105 -B SW101A SW101B LPF HPF OFF LPF HPF OFF Q142-Q146 Q148,Q149 Q152 Q161-Q166 R-OUT L-OUT POWER INPUT +12V D.C. REM F01,F02 Q701 Q702 U701 POWER CONTROL Q730,Q731 Q745-Q747 Q755-Q757 POWER

21、REGULATOR T1 U703 U704 TRANS & REGULATOR +/-15V VCC VEE Q150 Q250 MUTE CONTROL Q705 -708 Q171-Q176 Q272 PROTECT VR101B VR101A VR102C VR102D 7 6 22 11 6 7 POWER AMP Q790 CCFL+12V INVERTER LOAD CCFL board Q780 VR701 Q242-Q246 Q248,Q249 Q252 Q261-Q266 BOOST 0-12dBCROSSOVER 31 3 1 3 1 6 7 3 157 3 1 2 1

22、2 1 5 7 6 7 6 7 VARIABLE/INV.CIRCUIT(Gain1)/Amplifier 50-250Hz 12dB/OCT VARIABLE 6 5 4 3 2 1 BCDEFGHIJA 7 KS-AX6700 2-2 Caution If electricity is connected during disassembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp IC. This will be damaged

23、 if the above precautions are not followed, as it does not have a sub heat sink attached to it. Indicates main signal Standard schematic diagrams Main board and sub 1/2 /sub2 board circuit diagram SUB2 PCB SUB1 PCB 6 5 4 3 2 1 BCDEFGHIJA 7 KS-AX6700 2-3 Caution If electricity is connected during dis

24、assembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp IC. This will be damaged if the above precautions are not followed, as it does not have a sub heat sink attached to it. Main board 2/2 and CCFL board circuit diagram CCFL PCB Parts are safet

25、y assurance parts. When replacing those parts make sure to use the specified one. CCFL - Inverter board 6 5 4 3 2 1 BCDEFGHIJA 7 KS-AX6700 2-4 Caution If electricity is connected during disassembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp I

26、C. This will be damaged if the above precautions are not followed, as it does not have a sub heat sink attached to it. Printed circuit boards Main board Surface side view 6 5 4 3 2 1 BCDEFGHIJA 7 KS-AX6700 2-5 Caution If electricity is connected during disassembly, it must be a no load current. If i

27、t is load current, be sure to attach a heat sink to the power-amp IC. This will be damaged if the above precautions are not followed, as it does not have a sub heat sink attached to it. Bottom side view 6 5 4 3 2 1 BCDEA 7 KS-AX6700 Sub1/sub2 P.C. board (Volume board) CCFL P.C. board 2-6 KS-AX6700 3

28、-1 PARTS LIST * All printed circuit boards and its assemblies are not available as service parts. - Contents - Exploded view of enclosure assembly and parts list Electrical parts list Packing and accessories KS-AX6700 3-2 3-4 3-10 Areas suffix J - Nothem America E - Continental Europe KS-AX6700 3-2

29、CONTROL PANEL This parts is WR1 of the electrical parts list. Exploded view of enclosure assembly and parts list Block No.M MM1 KS-AX6700 3-3 ItemParts numberParts nameAreaQtyDescription 1MAHS070047-2HEAT SINK1 2MAFP076019-1FRONT PANEL1 3MARP706021-1REAR PANEL1 4MABC076014-1BOTTOM COVER1 5MATC041489

30、-1CONTROL PANEL1 6MASO051491-1CCFL COVER1 7MABR031494-0TR BRACKET (A)2 8MABR031493-0TR BRACKET (B)1 9MABR031495-0TR BRACKET (C)1 10MOCU011504-2TR BRACKET CUS4 11MOCU011503-2TR BRACKET CUS2 12MOCU011505-2TR BRACKET CUS2 13MASP001519-0SILICON PAD (A)2 14MASP001509-0SILICON PAD (B)1 15MASP001520-0SILIC

31、ON PAD (C)1 16MAPO022903-0PIPE1 17MATC036022-1TOP PLATE1 18MAIL001501-1ILLUMINATOR1 19MOKB076023-1VOLUME KNOB3 20MOKB076024-1SWITCH KNOB1 21MOWA051506-0POLY WASHER2 22MABU031496-0WIRE BUSHING1 23MOCU111508-0INSULATION SHEE1 24MOCU111535-1INSULATION SHEE1 25MOFI011538-0FIBER PLATE1 26MOCU011511-1CCFL

32、 CUSHION(A)1 27MOCU011512-0CCFL CUSHION(B)2 28MOCU001521-0RUBBER CUSHION1 29MOCU014097-0RUBBER CUSHION1 30MOCU014097-0RUBBER CUSHION2 31MOCU021701-0FIBER CUSHI3 33MOCU061498-0EVA CUSHION2 34MNSC00140-9.3SCREW2 36MNSC00740-14SCREW13 37MBSC03230-08SCREW6 38MBSC00230-06SCREW14 39MNSC00630-06SCREW8 40MB

33、SC04330-05SCREW4 41MBSC00330-08SCREW6 A Parts list ( Enclosure assembly )Block No. M1MM KS-AX6700 3-4 ItemParts numberParts nameAreaRemarks C 101ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 102ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 104CER22PF50VNPOCAPACITORCERAMIC DISK 50 C 105CER100PF50VNPOCAPACITORCER

34、AMIC DISK 50 C 106CER22PF50VNPOCAPACITORCERAMIC DISK 50 C 119ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 120CER100PF50VNPOCAPACITORCERAMIC DISK 50 C 121CER104PF50VCAPACITORCERAMIC DISK 50 C 122CER104PF50VCAPACITORCERAMIC DISK 50 C 123CER104PF50VCAPACITORCERAMIC DISK 50 C 124CER104PF50VCAPACITORCERAMIC D

35、ISK 50 C 142CER104PF50VCAPACITORCERAMIC DISK 50 C 143MAL224J63VTLCAPACITORMYLAR 5% 63V T C 144CER104PF50VCAPACITORCERAMIC DISK 50 C 145ELE100/63VSMSCARBON RESISTORELECTROLYTIC S C 146CER100PF50VNPOCAPACITORCERAMIC DISK 50 C 147CER100PF50VNPOCAPACITORCERAMIC DISK 50 C 148CER5PF50VNPOCAPACITORCERAMIC

36、DISK 50 C 149ELE100/16VSMSCAPACITORELECTROLYTIC SM C 160ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 161ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 162CER102PF50VCHCAPACITORAXIAL CERAMIC 5 C 163CER102PF50VCHCAPACITORAXIAL CERAMIC 5 C 171ELE100/50VSMSCARBON RESISTORELECTROLYTIC S C 172CER102PF50VCAPACITORCERA

37、MIC DISK 50 C 173ELE100/16VSMSCAPACITORELECTROLYTIC SM C 190ELE330/16VSMSCAPACITORELECTROLYTIC S C 191MAL104J63VTLCAPACITORMYLAR 5% 63V T C 201ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 202ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 204CER22PF50VNPOCAPACITORCERAMIC DISK 50 C 205CER100PF50VNPOCAPACITORCERAM

38、IC DISK 50 C 206CER22PF50VNPOCAPACITORCERAMIC DISK 50 C 219ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 220CER100PF50VNPOCAPACITORCERAMIC DISK 50 C 242CER104PF50VCAPACITORCERAMIC DISK 50 C 243MAL224J63VTLCAPACITORMYLAR 5% 63V T C 244CER104PF50VCAPACITORCERAMIC DISK 50 C 245ELE100/63VSMSCARBON RESISTORELE

39、CTROLYTIC S C 246CER100PF50VNPOCAPACITORCERAMIC DISK 50 C 247CER100PF50VNPOCAPACITORCERAMIC DISK 50 C 248CER5PF50VNPOCAPACITORCERAMIC DISK 50 C 249ELE100/16VSMSCAPACITORELECTROLYTIC SM C 260ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 261ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 262CER102PF50VCHCAPACITORAX

40、IAL CERAMIC 5 C 263CER102PF50VCHCAPACITORAXIAL CERAMIC 5 C 291MAL104J63VTLCAPACITORMYLAR 5% 63V T C 345ELE470/16VSMSCAPACITORELECTROLYTIC S C 701ELE10/25VSMSCAPACITORELECTROLYTIC SM C 705ELE47/25VSMSCAPACITORELECTROLYTIC SM C 706CER104PF50VCAPACITORCERAMIC DISK 50 C 715CER104PF50VCAPACITORCERAMIC DI

41、SK 50 C 716MAL334J63VTLCAPACITORMYLAR 5% 63V T C 717ELE47/16VSMSCAPACITORELECTROLYTIC SM C 718ELE220/16VSMSCAPACITORELECTROLYTIC S C 720CER104PF50VCAPACITORCERAMIC DISK 50 C 721ELE10/25VSMSCAPACITORELECTROLYTIC SM C 722ELE47/25VSMSCAPACITORELECTROLYTIC SM C 724CER104PF50VCAPACITORCERAMIC DISK 50 C 7

42、25ELE10/100VSMSCAPACITORELECTROLYTIC SM C 726CER104PF50VCAPACITORCERAMIC DISK 50 C 727ELE10/100VSMSCAPACITORELECTROLYTIC SM C 728ELE10/100VSMSCAPACITORELECTROLYTIC SM C 731ELE100/16VSMSCAPACITORELECTROLYTIC SM C 740MAL102JCAPACITORSTICON C 741ELE47/25VSMSCAPACITORELECTROLYTIC SM C 750ELE2200/25VRXCA

43、PACITORELECTROLYTIC R C 751ELE2200/25VRXCAPACITORELECTROLYTIC R C 752CER104PF50VCAPACITORCERAMIC DISK 50 C 753ELE1000/35VRXCAPACITORELECTROLYTIC R C 760MAL222J63VTLCAPACITORMYLAR 5% 63V T C 761ELE2.2/50VSMSCAPACITORELECTROLYTIC SM C 762ELE4.7/50VSMSCAPACITORELECTROLYTIC SM C 763ELE47/25VSMSCAPACITOR

44、ELECTROLYTIC SM C 765CER104PF50VCAPACITORCERAMIC DISK 50 C 766CER104PF50VCAPACITORCERAMIC DISK 50 C 767ELE1000/50VSDCAPACITORELECTROLYTIC S C 768ELE1000/50VSDCAPACITORELECTROLYTIC S C 769ELE2200/50VSHLCAPACITORELECTROLYTIC S C 770ELE2200/50VSHLCAPACITORELECTROLYTIC S C 771ELE2200/50VSHLCAPACITORELEC

45、TROLYTIC S C 772ELE2200/50VSHLCAPACITORELECTROLYTIC S C 773MAL105J63VTLCAPACITORMYLAR 5% 63V T C 774MAL105J63VTLCAPACITORMYLAR 5% 63V T C 780CER22PF50VNPOCAPACITORCERAMIC DISK 50 C 781ELE10/50VMSCAPACITORELECTROLYTIC SM C 785ELE100/35VSMSCAPACITORELECTROLYTIC SM C 786ELE100/35VSMSCAPACITORELECTROLYT

46、IC SM C 787CER104PF50VCAPACITORCERAMIC DISK 50 C 788CER104PF50VCAPACITORCERAMIC DISK 50 C 790CER473PF50VCAPACITORCERAMIC DISK 50 C 791MAL105J63VTLCAPACITORMYLAR 5% 63V T C 792CER473PF50VCAPACITORCERAMIC DISK 50 C 850ELE10/25VSMSCAPACITORELECTROLYTIC SM C 861CER223PF50VCAPACITORCERAMIC DISK 50 C 862C

47、ER104PF50VCAPACITORCERAMIC DISK 50 C 863MAL103J63VTLCAPACITORMYLAR 5% 63V T C 864MAL103J63VTLCAPACITORMYLAR 5% 63V T C 867CER104PF50VCAPACITORCERAMIC DISK 50 CON01LWL0640-2PWAFER D 1421N4148GE DIODESWITCHING SIGNA D 1431N4148GE DIODESWITCHING SIGNA D 1511N5235DIODEZENER 6.8V D 1701N4148GE DIODESWITC

48、HING SIGNA D 2421N4148GE DIODESWITCHING SIGNA D 2431N4148GE DIODESWITCHING SIGNA D 2511N5235DIODEZENER 6.8V D 7011N5404CARBON RESISTORRECTIFIER D 7021N4004DIODERECTIFIER D 7041N4148GE DIODESWITCHING SIGNA D 7101N4148GE DIODESWITCHING SIGNA D 7111N4148GE DIODESWITCHING SIGNA D 722PR1504DIODEFAST RECO

49、VERY D 723PR1504DIODEFAST RECOVERY D 731PR1504DIODEFAST RECOVERY D 732PR1504DIODEFAST RECOVERY D 734PR1504DIODEFAST RECOVERY D 735PR1504DIODEFAST RECOVERY D 751ESC25M02-DDIODEFAST RECOVERY D 752ESC25M02-DDIODEFAST RECOVERY D 7701N4148GE DIODESWITCHING SIGNA D 7711N4148GE DIODESWITCHING SIGNA D 8501N4148GE DIODESWITCHING SIGNA F 1FUSE25A/32VFUSEATEFLON TUBE F 2FUSE25A/32VFUSEATEFLON TUBE Electrical parts list ( MAIN PCB ) Block No.01 AItemParts numberParts nameAreaRemarksA Eiectric