Jvc-KSF-545-Service-Manual(1) 电路图 维修手册.pdf

SERVICE MANUAL COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD. No.49828 2003/4 KS-F545 CASSETTE RECEIVER 4982820034 KS-F545 TABLE OF CONTENTS 1Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 2Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 3Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 4Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 MODESCM MORPT Area Suffix EE - Russian Federation RadioFans.CN 收音机爱 好者资料库 KS-F545 1-2 (No.49828) SECTION 1 Important Safety Precautions 1.1 Safety Precautions ! 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. RadioFans.CN 收音机爱 好者资料库 KS-F545 (No.49828)1-3 SECTION 2 Disassembly method 2.1 Main body 2.1.1Removing the front panel assembly (See Fig.1) (1) Press the release button and remove the front panel as- sembly. Fig.1 2.1.2Removing the bottom cover (See Fig.2) (1) Turn the main body upside down. (2) Insert a screwdriver under the joints to release the two joints a on the left side, two joints b on the right side and joint c on the back side of the main body, then remove the bottom cover from the main body. CAUTION: When releasing the joints using a screwdriver, do not damage the main board. Fig.2 2.1.3Removing the front chassis (See Fig.3) Prior to performing the following procedures, remove the front panel assembly and bottom cover. (1) Remove the screw A on the both sides of the main body. (2) Release the two joints d and two joints e on the both sides of the main body, then remove the front chassis toward the front. Fig.3 Front panel assembly Release button Bottom cover Joint b Joint b Joint c Joint a Joint a Joint dJoint e Front chassis Joint d A Joint e RadioFans.CN 收音机爱 好者资料库 KS-F545 1-4 (No.49828) 2.1.4Removing the heat sink (See Fig.4) Prior to performing the following procedure, remove the front panel assembly. (1) Remove the two screws B and two screws C attaching the heat sink on the left side of the main body, and remove the heat sink. Fig.4 2.1.5Removing the rear panel (See Fig.5) Prior to performing the following procedure, remove the front panel assembly and bottom cover. (1) Remove the two screws D, two screws E and screw F at- taching the rear panel on the back side of the main body. Fig.5 2.1.6Removing the main board (See Fig.6) Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis, heat sink and rear panel. (1) Remove the two screws G attaching the main board on the top chassis. (2) Disconnect the connectors CP401 on the main board from the cassette mechanism assembly. Fig.6 Heat sink CBC D D EF E Rear panel G G Main board CP401 Top chassis KS-F545 (No.49828)1-5 2.1.7Removing the cassette mechanism assembly (See Fig.7) Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis, heat sink, rear panel and main board. (1) Disconnect the wire from the connector CN402 on the mecha board. (2) Disconnect the card wire from the connector CN403 on the mecha board. (3) Remove the four screws H attaching the cassette mecha- nism assembly from the top chassis. Fig.7 2.1.8Removing the mecha board (See Fig.8) Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis, heat sink, rear panel and main board. (1) Disconnect the wire from the connector CN402 on the mecha board. (2) Disconnect the card wire from the connector CN403 on the mecha board. (3) Remove the screw J attaching the mecha board. (4) Bend the hook f in the direction of the arrow 1 and move the mecha board in the direction of the arrow 2. (5) Remove the mecha board from the mecha bracket (L) of the top chassis. Fig.8 HH Top chassis Cassette mechanism assembly CN403CN402 Mecha board J Mecha board Hook f Top chassis Mecha bracket (L) CN402 CN403 1 2 KS-F545 1-6 (No.49828) 2.1.9Removing the front board (See Fig.9 to 11) Prior to performing the following procedures, remove the front panel assembly. (1) Remove the four screws K attaching the rear cover on the back side of the front panel assembly. (See Fig.9.) (2) Release the eleven joints g, the front panel assembly and the rear cover become separate. (See Fig.10.) (3) Remove the front board from the front panel assembly. (See Fig.11.) Fig.9 Fig.10 Fig.11 KK KK Rear cover Joints g Joints g Joints g Joints g Front board Front panel assembly KS-F545 (No.49828)1-7 2.2 Cassette mechanism assembly REFERENCE: Prior to performing the following procedures, turn the mode gear on the bottom of the body until the respective part comes to the EJECT position (Refer to Fig.1). Fig.1 2.2.1Removing the cassette guide (See Fig.2) (1) Turn the mode gear to set to RVS play or subsequent mode. (2) Remove the cassette guide from the main chassis while re- leasing each two joint tabs a in the direction of the arrow. Fig.2 2.2.2Removing the load arm (See Fig.3) (1) Remove the E-washer attaching the load arm. (2) Move the load arm in the direction of the arrow and release the joint b on the cassette catch. Fig.3 Mode gear Cassette guide Tab a Tab a Load arm E-washer Joint b KS-F545 1-8 (No.49828) 2.2.3Removing the cassette hanger assembly / cassette holder (See Fig.4 to 7) (1) Check the mode is set to EJECT. Push down the front part of the cassette holder and move in the direction of the ar- row to release the joint c. (2) Move the rear part of the cassette hanger assembly in the direction of the arrow to release it from the two joint bosses d. (3) Release the holder stabilizer spring from the hooks e and f, then pull out from the cassette hanger assembly. (4) Bring up the rear side of the cassette hanger assembly to release the joint g and h. (5) Pull out the cassette catch from the cassette hanger as- sembly. Fig.4 Fig.5 Fig.6 Fig.7 Cassette holder assembly Side bracket Joints c Cassette holder assembly Cassette hanger assembly Boss d Boss d Cassette hanger assembly Cassette stabilizer spring Hook f Hook e Cassette hanger assembly Hook h Hook g Cassette holder assembly Cassette holder assembly Cassette hanger assembly Cassette catch KS-F545 (No.49828)1-9 2.2.4Removing the side bracket assembly (See Fig.8 to 10) (1) Remove the screw A attaching the side bracket assembly. (2) Detach the front side of the side bracket assembly upward and pull out forward to release the joint i and j in the rear. CAUTION: When reassembling, make sure that the boss k of the main chassis is set in the notch of the load rack under the side bracket assembly. Do not reattach the load rack on the boss k. CAUTION: After reattaching the side bracket assembly, confirm op- eration. Fig.8 Fig.9 Fig.10 A Side bracket assembly Side bracket assembly Joint i Joint j Joint i Joint j Side bracket assembly Boss k Load rack Boss k Load rack KS-F545 1-10 (No.49828) 2.2.5Removing the pinch arm (F) assembly (See Fig.11 and 12) (1) Remove the polywasher and pull out the pinch arm (F) as- sembly. (2) Remove the compulsion spring. 2.2.6Removing the pinch arm (R) assembly (See Fig.11 and 12) (1) Remove the polywasher and pull out the pinch arm (R) as- sembly. 2.2.7Removing the slide chassis assembly (See Fig.13 and 14) REFERENCE: It is not necessary to remove the head and the tape guide. (1) Move the slide chassis assembly in the direction of the ar- row to release the two joints l and remove from the main chassis. (2) Remove the rack link. CAUTION: When reassembling, first reattach the rack link, and next fit the boss m and hook n of the slide chassis assembly to the hole of the main chassis, and engage the two joints l. Fig.11 Fig.12 Fig.13 Fig.14 Polywasher Polywasher Pinch arm (F) assembly Pinch arm (R) assembly Polywasher Pinch arm (F) assembly Compulsion spring Pinch arm (R) assembly Polywasher Slide chassis assembly Joint l Joint l Boss m Hook n Rack link Head Tape guide KS-F545 (No.49828)1-11 2.2.8 Removing the head / tape guide (See Fig.16 and 17) REFERENCE: It is not necessary to remove the slide chassis assembly. (1) Remove the band attaching the wire to the head. (2) Remove the two screws B, the head and the head support spring. (3) Remove the pinch arm spring from the tape guide. (4) Remove the tape guide and the pinch spring arm. CAUTION: When reattaching the pinch arm spring, set both end of it to the pinch spring arm (remarked o). CAUTION: When reattaching the head, set the wires into the groove of the tape guide (Fig.16). 2.2.9Removing the flywheel assembly (F) 1 (/ ) 2 +/ 3 LOUD () 4 SEL () 5 DISP () 6 7 AM 8 0 () 9 TAPE 23 p FM q / 4 SSM, . w MO () e RPT () r t MODE y SCM ( ) u ( ) i FM FM1, FM2, FM3 o ; TAPE a MO (), ST () s RPT () d SCM ( ) f ( ) g h LOUD () RU02-04.KS-F545EEf1/17/03, 7:27 PM4 5 1 . : 2 , . , . 2 . , (FM ), 6 8. , , 9 11. 3 . 4 , . (C 12 14). . “” , . , , . , “SEE YOU” (“ ”). : ( 15). . . . MODESCM MORPT 1 3 2 RU05-05.KS-F545EEf1/17/03, 7:27 PM5 6 . : 1 (FM1 3, AM). : FM (FM1, FM2, FM3). , FM. 2 . , , . , , , , . : FM1 FM2 : 87,5 108,0 FM3 : 65,00 74,00 : 1 (FM1 3, AM). : FM (FM1, FM2, FM3). , FM. 2 4 , “M ()” . , . 4, . . FM . . MODESCM MORPT AM FM1FM2FM3 AM FM1FM2FM3 RU06-08.KS-F545EEf1/17/03, 7:28 PM6 7 3 , , “M” . , 5 . , ( 50 (87,5 108,0 ), 30 (65,00 74,00 ) FM 9 AM MW/LW) , . FM: 1 MODE (), FM . 2 , MO (), MO. , MO . MO, , , , . , , . , . 4, . : FM: SSM ( ) , FM, FM: SSM 6 FM FM (FM1, FM2 FM3). 1 FM (FM 1 3), FM. 2 2 . FM , (FM1, FM2 FM3). 1 ( ) 6 ( ). , 1. FM FM1FM2 FM3 “SSM” , , . SSM MODE MO RU06-08.KS-F545EEf1/17/03, 7:28 PM7 8 6 (FM1, FM2, FM3 AM) . .: , FM 88,3 1 FM1 1 (FM1 3, AM), ( FM1). 2 ( 88,3 ). 3 ( 1) 2 . 4 , . AM FM1FM2FM3 , . 4, . : , . , (, ). , . . , . , “ ” 7 8. 1 (FM1 3, AM). 2 (1 6) , . MORPT AM FM1FM2FM3 “ 1” . RU06-08.KS-F545EEf1/17/03, 7:28 PM8 9 I (). 1 . , . , ( ). : , TAPE 23 , . 2 . TAPE () 23, (TAPE ) (TAPE ). 0. , . . , ( ). , 0, . , TAPE () 23. . : , . 1 , . , , . 4 1 , . , . MODESCM MORPT RU09-11.KS-F545EEf1/17/03, 7:44 PM9 10 “” . TAPE () 23 0 () 2 . 5 “NO EJECT” ( ), “” . “” , TAPE () 23 0 () 2 . 5 “EJECT OK” ( ), “” . : 0, , . Multi Music Scan ( ) . 9 . , . 9. , . : : , . , . Multi Music Scan ( ) : , ( ) . . . , . 4, . RU09-11.KS-F545EEf1/17/03, 7:28 PM10 11 ( ). , 15 , . “ (PSM)” 15 16. 1 SEL () 2 , PSM. (PSM: 16). 2 4, “B. SKIP ( )” . 3 +, “ON” (“”). . 4 SEL (), . , “OFF” (“”) 3, . ( ). ( ) 1 MODE (), . . 2 , RPT ( ), RPT. , , . , RPT. : : , ( ) . . . , . , . MODE RPT RU09-11.KS-F545EEf1/17/03, 7:28 PM11 12 1 , . : 2 . : +/ . “VOL” () , . . , : BAS 06 (.) (. )+06(.) TRE06 (.) ( . )+06(.) FAD* R06( ( ) . )F06 ( ) BAL L06 ( () ) . R06 ( ) VOL00 (.) (). 50 (.) * , “00”. . . VOL () BAS ( ) TRE ( ) FAD ( ) BAL () , . .: “TRE” ( ) RU12-14.KS-F545EEf-11/20/03, 10:53 AM12 13 / . . LOUD () . BEATSOFTPOPSCM OFF . SCM, : : . , “ ” 14. , “ ” 12. , : , “” . : BAS TRELOUD SCM OFF(0000OFF )() BEAT- +0200 SOFT+0103 POP+04+01OFF () OFF () ON () SCM RU12-14.KS-F545EEf1/17/03, 7:27 PM13 14 (BEAT, SOFT, POP) . . , , 1. 1 , . 13. 2 . “BAS ( )” “TRE ( )” . 3 . 12. 4 2 3, . 5 . 13. 6 SCM , , 1, . , , . 7 , . , 13. SCM SCM .: “TRE ( )” , . .: “TRE” ( ) RU12-14.KS-F545EEf-11/20/03, 10:53 AM14 15 1 SEL () 2 , PSM. ( 16). 2 . 1 “CLOCK H ( )” , . 2 . 3 . 1 “CLOCK M ( )” . 2 . 4 SEL (), . 21 21 DISP (). : : : : , 5 , . (PSM) , , PSM ( ). 1 SEL () 2 , PSM. ( 16). 2 PSM, . ( 16). ( ) RU15-17.KS-F545EEf1/17/03, 7:30 PM15 16 TEL () , . “MUTING 1” “MUTING 2” , , . . MUTING 1: , . MUTING 2: , . OFF: . LEVEL () . “AUDIO 2 ( 2)” . AUDIO ( ) 1: . AUDIO ( ) 2: ( ) . OFF (): . CLOCK H CLOCK M LEVEL TEL B. SKIP 213 150:00 3 PSM. 4 , 2 3, PSM. 5 SEL (), . (PSM) MUTING 1 ON OFF AUDIO 1 MUTING 2 OFF OFF 16 16 11 AUDIO 2 OFF OFF . . SEL (), . AUDIO 2 + RU15-17.KS-F545EEf1/17/03, 7:30 PM16 17 , . , . . 1 . 2 . 3 . 1 . 2 , . : . , , , , . RU15-17.KS-F545EEf1/17/03, 7:30 PM17 18 , , . , , . , . . . .TAPE () 23 0 () 2 . . . . , . . . . . . . . . . . SSM. ( ) . . . . .SEL () (/ ). ( , , ). ( 2). RU18-20.KS-F545EEf1/17/03, 7:30 PM18 19 , , . 10 ( ). : . . . . - . . : : , . , . , . . / , , . , , , . RU18-20.KS-F545EEf1/17/03, 7:30 PM19 20 MW :20 : 35 LW : 50 : 0,11% (WRMS) : 100 . (-60) : 30 16 000 ( ) -: ( ): 56 : 40 : : 14,4