Jvc-KSF-160-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL CASSETTE RECEIVER No.49659 Nov. 2001 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. KS-F160 KS-F160 Area Suffix J - Northern America Contents Safety precaution Disassembly method Adjustment method Description of major ICs 1-2 1-3 1-12 1-16 MO KS-F160 RadioFans.CN 收音机爱 好者资料库 KS-F160 1-2

2、! 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. Safety precaution RadioFans.CN 收音机爱 好者资料库 KS-F160 1-3 Fig. 3 d Front chassis a a Disassembly method Detaching the front panel unit ( Se

3、e Fig.1 ) Push the Release button in the direction of arrow to detach the front panel unit. Removing the front chassis ( See Fig. 2 and 3 ) Disengage the four tabs ( a ) in the right and left sides of unit and pull the front chassis forward to remove it. Removing the bottom cover ( See Fig. 2 to 4 )

4、 1.Removie the front chassis. 2.Turn the unit up side down. 3.Insert the screwdriver to the four engagements ( b, c, d, f ) . 4.Turn the screwdriver and remove the bottom cover. Fig. 1 Push the release button Front panel unit a a Fig. 2 Top chassis Front chassisBottom cover b c Fig. 4 f Bottom cover

5、 Rear panel RadioFans.CN 收音机爱 好者资料库 KS-F160 1-4 Removing the heat sink (SeeFig.5) 1.Removing the front chassis. 2.Removing the bottom cover. 3.Remove the three screws ( 1 and 1 ) retaining the heat sink. Removing the main board assembly ( See Fig. 5 to 7) 1.Removing the front chassis. 2.Removing the

6、 bottom cover. 3.Removing the heat sink. Attach the heat sink with a screw ( 1 ) on operat- ing checks. 4.Remove the two screws ( 2 ) retaining the main board assembly. 5.Remove the two screws ( 3 ) retaining the rear panel . 6.Separate the main board assembly and cassette mechanism assembly. 7.Take

7、 out the main board assembly. Heat sink Fig. 5 1 1 1 Main board assembly Fig. 6 2 2 ( ) Rear panel Fig. 7 33 KS-F160 1-5 Front cover Front panel Operation switch board Fig. 9 Fig. 11 Fig. 10 Front cover iii 55 5 5 g h h h gg A Removing the cassette mechanism assembly ( See Fig. 8 ) 1.Removing the fr

8、ont 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 mechanism. 6.Separate the top chassis and cassette mechanism. Cassette mechanism Front side Top chassis Fig. 8 4 4 44 Removing the operation s

9、witch board ( See Fig. 9 to 11 ) 1.Detaching the front panel unit. 2.Turn the front panel back side down. 3.Remove the four screws ( 5 ) retaining the front cover. 4.Open the front cover gradually by disengaging the three engagements ( g ) while pushing the top of the front cover in the arrow A dire

10、ction, then disengage the three engagements ( h ) on the both sides. 5.Place the front panel unit front side down. 6.Disengage the three engagements ( i ) on the bottom to separate the front cover from the front panel. (Be careful not to lose the button springs.) KS-F160 1-6 Fig. 14 8 8 8 8 Chassis

11、assembly Removing the head amplifier board ( See Fig. 12 ) 1.Removing the front chassis. 2.Removing the bottom cover. 3.Removing the heat sink. 4.Removing the main board assembly. 5.Removing the cassette mechanism. 6.Remove the screw ( 6 ) retaining the head ampli- fier board. 7.Shift the two inter

12、rocking sections ( j ) securing the head amplifier board in the direction shown by the arrow B to remove the printed circuit board. 8.From the connector CJ901 on the head amplifier board from connector wire out going to the head relay board. Removing the chassis assembly ( See Fig. 13 and 14 ) 1.Rem

13、oving the front chassis. 2.Removing the bottom cover. 3.Removing the heat sink. 4.Removing the main board assembly. 5.Removing the cassette mechanism. 6.Removing the head amplifier board. 7.Turn the left side to cassette mechanism. 8.Remove the screw ( 7 ) retaining the relay board. 9.Shift the one

14、inter rocking sections ( k ) securing the relay board in the direction shown by the arrow C to remove the printed circuit board. 10. Turn the back side down, remove the four screws ( 8 ) retaining the chassis assembly. Fig. 12 To head relay board Head amplifier board CJ901 6 j j B Fig. 13 Relay boar

15、d C 7k KS-F160 1-7 Prior to performing the following procedures, remove the head amplifier board, the relay board and the mechanism 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 boar

16、d (See Fig.1) Remove the screw B attaching the FF / REW lever assembly on the back of the cassette mechanism assembly. Remove 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 F

17、F / REW lever assembly (See Fig.1) Reattach the FF / REW lever assembly to the joint c on the back of the chassis. Reattach the 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 J

18、oint b B A Direction switch board Joint d Joint e Soldering a Fig.1 KS-F160 1-8 Prior to performing the following procedure, 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

19、 support plate, the A arm spring (a) and (b), the playback head. 1. 2. 3. Removing the playback head (See Fig.2) The 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 t

20、he P arm spring (f) in the pinch-roller (F) assembly from the chassis. Remove the P arm spring (r) in the pinch-roller (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

21、) differs from the P arm spring (r). ATTENTION: The pinch roller (F) assembly differs from the pinch roller (R) assembly. 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 th

22、e P arm spring (f) from the chassis. Remove the P arm spring (r) from the chassis. Playback head FF roller Fig.2 KS-F160 1-9 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

23、direction of the arrow. Push the eject lever and remove the cassette holder from the playback head. Disengage 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 retur

24、n link and the eject lever. 1. 2. 3. Removing the cassette hanger / cassette holder (See Fig.3) Unsolder 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

25、assembly. 3. Removing the motor assembly (See Fig.5) To replace the sub-belt, remove the main belt and 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 fol

26、lowing procedure, remove the FF / REW lever assembly and the cassette hanger / cassette holder. Remove 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: Cass

27、ette holder Cassette hanger Return link Joint i Eject lever Joint h Joint h Joint g Joint g Tab f Tab 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 Soldering j Fig.3 Fig.4 Fig.5 C washer C washer Chassis KS-F160 1-10 Ra

28、ise the part k of the reel base assembly slightly and remove the selector link (B) on the front 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 as

29、sembly (See Fig.5 and 6) 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). Turn over the cassette mechanism assembly and remove the main

30、 belt. Pull out the flywheel (BF) and (BR) downward respectively. 1. 2. Removing the Flywheel (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

31、(BR) E E E F G G Main-belt Reel base assembly Sub-belt Motor assembly Motor pulley Soldering j Fig.4 Fig.5 Fig.6Fig.7 C washer C washer Pinch-roller (R) assembly Turn the selector link (B). k KS-F160 1-11 Unsolder the two wires l on the mute switch board on the back of the cassette mechanism assembl

32、y. Remove the screw H attaching the mute switch board. 1. 2. Removing the mute switch 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 th

33、e power switch. 1. 2. Removing the power switch (See Fig.9) Cassette mechanism assembly Soldering l H Mute switch board Soldering m I Power switch Cassette mechanism assembly Rower switch Motor assembly Fig.8 Fig.9 KS-F160 1-12 V AM mode999kHz/62dB,INT/400Hz,30% modulation signal on recieving. FM mo

34、no mode FM stereo mode 1kHz,67.5kHz dev.pilot 7.5kHz dev Output level 0dB(1 V,50 /open terminal) 97.9MHz/66dB,INT/400Hz,22.5kHz deviation pilot off mono Frequenc FM 87.5-108MHz 87.5-107.9MHz 50KHz step 200KHz step Band AM MW 530-1710KHz 9KHz step 10KHz step LW531-1602KHz Adjustment method Test instr

35、uments reqired for adjustmentStandard volume position Measuring conditions(Amplifier section) Frequency band 1. Digital oscilloscoe(100MHz) 2.Frequency counter meter 3.Electric voltmeter 4.Wow +Vcc Ground Output 2 Negative feed back 2 Input 2 UPC1228HA(IC901):Head amp 1.Terminal layout & Block diagr

36、am2.Pin function Block diagram HEAD IC901 HEAD AMPLIFIER UPC1228HA IC981 POWER AMP. HA13158A IC931 E.VOLUME TEA6320T IC701 SYSTEM CONTROL MICON LC72362N-9920 TU1 AM/FM TUNER PACK QAU0120-002 LCD1 QLD0335-001 IC651 LCD DRIVER LC75823W KEY S601 - S620 MAIN MOTOR MUTE SWITCH TAPE /RADIO SW SEEK/STOP, M

37、ONO.SD/ST, S METER, FM OSC, EO, BAND TUNER L TAPE IN PROG OUT L Front Lch FrontLch Rear Lch Rear OUT SDA SCL CN901 CP721 CN721 KEY 0 - 2 CJ701 LCDDA LCDCK LCDCE F/R S8 - S52 COM1 - COM3 CP701 TAPE L LCH F/R LCH CP901 CJ901 J1 FM TO SPEAKER CONNECTOR TO LINE REAR OUT Tuner.Power AMP./System Controlle

38、rLCD DRIVER/KEY SWITCH CIRCUT HEAD AMPLIFIER CIRCUIT CJ921 CP722 DIRECTION BOARD RELAY BOARD AM CP981 2161 16 15 4 3 1 37 PROG-SW 3 1 ANT KS-F160 2-1 ? ABCDEFG 1 2 3 4 5 ? ? 2-3 KS-F160 Tape PB/Main signal Head amplifier circuit Standard schematic diagrams CP721 CP722 CP901 IC901 C203C103 CJ901 R204

39、 R104 C901 C201 C101 C202 C102 R203 R103 C204 C104 R201 R101 C205 C105 R901 QGB1214K1-06S QGA2002F1-06 QGB1214K1-06S UPC1228HA 100p100p QGA2002C1-05 330k 330k 820p 820p 0.47/50 0.47/50 100 100 47/6.3 47/6.3 0.01 0.01 100/10 100 ? ? ? HABCDEFG 1 2 3 4 5 KS-F160KS-F160 2-4 FM radio signal AM radio sig

40、nal CD signal Tape PB/Main signal Receiver & operation switch circuit section Parts are safety assurance parts. When replacing those parts make sure to use the specified one. IC981 R725 D718 R707 R708 *D701 C702 C701 ANT CN721 Q789 R712 C786 *R63 *R53 C704 C703 L781 D781 Q784 R786 Q701 L782 C13 D786

41、 Q989 C984 R757 R709 Q782 Q781 IC781 R717 C986 CN901 R716 R715 R751 R758 R762 D784 Q988 Q987 D782 R702 C237 C137 C236 C136 R231 R131 Q971 D973 R797 R792 C15 R763 R761 *IC751 *CP751 *R752 C262 *IC701 R719 R710 R1 R251 R161 C152 R718 C162 C252 R262 R152 R971 C983 C982 R252 C971 R951 CJ921 R703 C785 R9

42、72 C951 R931 Q972 R722 Q5 R727 R720 Q783 R3 *TU1 R162 R261 R151 IC931 Q1 Q3 Q2 Q771 Q772 C772 C773 R773 R772 R774 R2 L1 C981 D981 CP981 R163 R264 R164 R263 Q261 Q161 R265 R165 D715 D714 C705 C132 C232 CJ701 R724 R18 R764 R704 X701 *C233 *C133 R713 R753 D785 R705 *R54 *C12 C14 R795 R785 C8 *R64 R796

43、C707 R990 C10 R787 R754 R789R790 C988 L981 C783 R783 R784 D990 L783 C781 C784 C987 D705 C235 D974 C238 C138 C135 C234 C134 C934 C933 C250 C260 C931 C150 C160 R232 R132 C932 R788 C706 R723 D704 C9 *C751 *R760 *R759 *R756 C985 *R755 D706 D707 D708 D709 R15 D711 D719 C2 R721 C6 C7 C231 C131 R61 R51 R62

44、 R52 C4 B69 R9 R4 R5 R17 R6 D792 D791 C771 R771 D771 C3 C5 D1 D2 R14 C11 C972 R714 D716 R726 HA13158A 47K 1SS119-041 47K 47K 1SS119-041 22P 27P QNZ0009-001 QGB1214J1-06S 3.3K 2200/16 20K 20K 0.22 100/6.3 47uH 1SS119-041 2SA1706/ST/-T 1K KTC3199/GL/-T 47uH 100p DSK10C-T1 KRA102M-T 10/16 47K 4.7K 2SA1

45、706/ST/-T KRC102M-T AN80T05 100 10/16 QGB1214J1-06S 100 100 1K 47K 1K DSK10C-T1 1SS119-041 KRA102M-T 1SS119-041 47K 0.033 0.033 0.22 0.22 22K 22K KRC102M-T 1SS119-041 12K 6.8 0.01 1K 1K HD74HC126P QNZ0095-001 10K 470P 3.3K 4.7K 10 27K 27K 470P 3.3K 470P 470P 82K 82K 47K 0.01 0.01 82K 4.7/25 4.7K 47K

46、 10/16 4.7/25 10 KRA102M-T 3.3K KRC102M-T 47K 3.3K KRC102M-T 1K 82K 27K 27K QMFZ047-100-T TEA6320T 2SA1706/ST/-TKTA1267/YG/-T KTC3199/GL/-T KTC3199/GL/-T 2.2/50 0.001 1K 10K 1.5K 1K 4.7uH 2200/16 1N5401TM 820 100 100 820 2SD2144S/VW/-T 1SS119-041 2SD2144S/VW/-T 2.2K 2.2K 1SS119-041 1SS119-041 10/16

47、1/50 1/50 VMC0334-001 4.7K 22K 47K 10K QAX0406-001Z 1/50 1/50 KRA102M-T 3.3K 47K DSK10C-T1 47K 7.5K 100p 100p 18K 47K 0.1/50 7.5K 47K 0.01 10K 8.2p 100 330K 100K470K 47/16 QQR0704-001 2200/6.3 47K 1K MTZ11B-T2 47uH 10/16 KRC102M-T 220/10 10/16 MTZJ5.6B-T2 0.15 1SS119-041 0.00560.0056 0.15 0.00820.00

48、82 47/16 100/10 1/50 1/50 100/10 1/50 1/50 2.2k2.2k 0.01 0.01 1K MTZJ5.6B-T2 0.01 0.01 10K 100 100 100 MTZJ5.6B-T2 MTZJ5.6B-T2 MTZJ5.6B-T2 MTZJ5.6B-T2 4.7M MTZJ5.6B-T2 RB721Q-T2 0.022 RB721Q-T2 3.3K 1/50 1/50 0.1/50 10K 10K KRC102M-T 10K 1K 2.2K 10K 1SS119-041 1SS119-041 220/10 4.7K MTZJ9.1C-T2 0.1/

49、50 10/16 1SS119-041 1SS119-041 1.5M 0.01 2.2/10 3.3K 1SS119-041 47K TAPE.R MEM ACC 14VTAPE TAPE.L BUS.SI F/R 14V BUS.INT KEY0 5V BUS.SO MONO SCK RFO+ RRO+ LRO+ 9V BUS.SCK LFO+ RFO- RRO- LRO- LFO- TAPEIN PCNT5V SI/SO BUS.I/O IFREQ RRO R5V TAPE.R IF.C 9V PCNT5V TAPE.L TU-9V 14V R5V MUTE EO FM.OSC KEY2 KEY1 MUTE KEY0 LCD.CE LCD.SCK LCD.SO ACC.MUTE DETACH LRO KEY1 ACC.MUTE PROG 5V TAPE.14V BUS.SO PROG TAPEIN BUS.SCK F/R LCD.SO LCD.SCK LCD.CE SDA SCL BUS.SI SO/ST SD/ST EO SDA RFO- SCL IFREQ RFO+ 14V S.METER MONO KEY2 TU.RCH BANDTU.