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2.1.1 REPLACING PROCEDURE [IC6001] 

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[1.PREPARATION]

  

Before replacing IC6001: 

1. Take note that stored TV broadcast channels. (Because, its user may store TV broadcasts by 

manually other than "Auto Tuning" operation and it is also erased.) 

NOTE:

  

During servicing, do not make a short circuit between IC6001-pin 37 (5V) with other 

line/Components otherwise IC6001 may be broken. 

CAUTION:  

*When replacing the B7751, be sure to read/follow the "HOW TO REPLACE THE LITHIUM 

BATTERY" section. 

[2.REPLACING PROCEDURE IN STEPS]

  

STEP1.PREPARATION

  

1. Disconnect the AC plug before removing the C.B.A. with Mechanism unit by referring to the 

Disassembly procedure. 

STEP2.REPLACE THE IC6001

  

1. Replace the IC6001. (Do not make a short circuit between IC6001-pin37 and other pins/ 

components.) 

STEP3.RESET THE IC6001 AT ONCE

  

1. Connect the AC plug. 

2. Connect a jumper wire between TL7510 (RESET) and TL7509 (GND) for a second to reset 

the Microprocessor IC6001. 

 

Note:

  

Summary of Contents for NV-MV40GC

Page 1: ...T ORDER NO MAVR0305006C8 Video Cassette Recorder l NV MV40GC NV MV40GCS NV MV40GL NV MV40EE NV MV40GCU R4 MECHANISM 2003 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law TOP NEXT ...

Page 2: ... up Battery B7751 Back up Capacitor C7752 NOTE1 As for your reference without inserting a tape into a VCR you can confirm that the NAVI data that is back up with IC6001 as shown in the following steps 1 Indicate the NAVI mark on the Front Information Panel Press the Menu button and select the option then set the NAVI to ON mode 2 Turn on the Service Mode and press the NAVI button on the Remote Con...

Page 3: ...ise IC6001 may be broken CAUTION When replacing the B7751 be sure to read follow the HOW TO REPLACE THE LITHIUM BATTERY section 2 REPLACING PROCEDURE IN STEPS STEP1 PREPARATION 1 Disconnect the AC plug before removing the C B A with Mechanism unit by referring to the Disassembly procedure STEP2 REPLACE THE IC6001 1 Replace the IC6001 Do not make a short circuit between IC6001 pin37 and other pins ...

Page 4: ...ION setting screen is set to ON the input signal is fixed to A1 and the Channel up and down keys are not effective 3 Disconnect the AC plug for few seconds and connect it again and press POWER button for turning the power to on from off to carry out the Plug in Auto Tuner Preset 4 Since other than the channels that can be stored by Auto Tuning operation are not available yet preset manually by con...

Page 5: ...http servis manual com STEP5 COMPATIBILITY ADJUSTMENT Refer to the Electrical Adjustment Procedures TOP PREVIOUS NEXT ...

Page 6: ...8125H3F The PG Shifter Adjustment starts automatically 6 When the sequence of the automatic adjustment has been terminated the following action has been made SUCCEED The cassette tape is ejected ERROR The F20 F21 F22 or F23 is displayed Refer to next PG Shifter Adjustment Self Diagnosis Indication Table regarding the details of the indications 7 Exit from Service Mode Press FF and EJECT keys simul...

Page 7: ... IC6001 71 REC 5 0Vp p 5usec div IC6001 72 REC 5 0Vp p 5msec div IC6001 79 80 FF REW 5 0Vp p 1msec div IC6001 90 REC 5 0Vp p 10msec div IC6001 94 95 REC 6 8Vp p 10msec div IC6001 97 PLAY 0 8Vp p 10msec div IC3001 98 REC 1 6Vp p 0 5msec div IC3001 96 PLAY 5 0Vp p 5msec div IC3001 86 REC 1 8Vp p 5msec div IC3001 85 PLAY 1 5Vp p 20µsec div IC3001 87 PLAY 1 5Vp p 20µsec div IC3001 73 REC PLAY 5 0Vp p ...

Page 8: ...9 60 STOP 4 9 0 0 0 0 4 6 4 6 0 0 1 7 2 2 0 0 1 7 0 0 1 7 5 1 2 1 1 8 2 0 0 0 0 0 0 0 0 0 PLAY 0 0 0 0 0 0 4 6 4 6 0 0 1 7 2 2 0 0 1 7 0 0 1 7 5 2 2 1 1 8 2 0 0 0 0 0 0 0 0 0 REC 4 9 0 0 0 0 4 6 4 6 0 0 1 7 2 2 0 0 1 7 0 0 1 7 5 1 2 1 1 8 2 0 0 0 0 0 0 0 0 0 F F 0 0 0 0 0 0 4 6 4 6 0 0 1 7 2 2 0 0 1 7 0 0 1 7 5 2 2 1 1 8 2 0 0 0 0 0 0 0 0 0 REW 0 0 0 0 0 0 4 6 4 6 0 0 1 7 2 2 0 0 1 7 0 0 1 7 5 2 2...

Page 9: ... ELF15N005A 3 4 2 1 A C1121 0 033 A 0 068 B C D C1122 330P L1120 ELF15N003A A ELF15N005A B C D 2 1 3 4 4 1 3 2 D1140 DF80S 6622 C1155 270P Q1153 2SK2876 VOLTAGE CONTROL R1162 1K R1163 100 C1210 3300P LB1210 0 R1150 1M R1154 1M C1154 0 022 R1153 330 2W LR1150 VLP0392 Q1150 2SK2645 VOLTAGE CONTROL R1155 100K D1151 AU01ZV2 R1161 100 R1160 0 47 1W Q1152 2SC3311A VOLTAGE CONTROL Q1151 2SC3311A VOLTAGE ...

Page 10: ... ELF15N005A 3 4 2 1 A C1121 0 033 A 0 068 B C D C1122 330P L1120 ELF15N003A A ELF15N005A B C D 2 1 3 4 4 1 3 2 D1140 DF80S 6622 C1155 270P Q1153 2SK2876 VOLTAGE CONTROL R1162 1K R1163 100 C1210 3300P LB1210 0 R1150 1M R1154 1M C1154 0 022 R1153 330 2W LR1150 VLP0392 Q1150 2SK2645 VOLTAGE CONTROL R1155 100K D1151 AU01ZV2 R1161 100 R1160 0 47 1W Q1152 2SC3311A VOLTAGE CONTROL Q1151 2SC3311A VOLTAGE ...

Page 11: ...9Y C7623 0 01 L7610 10u C7618 6V47 C7619 0 01 C7617 0 01 L7605 10u C7616 6V47 L7601 10u C7605 6V47 C7608 0 01 R7601 330 R7611 330 C7601 50V1 D7602 MA4300NM L7603 0 C7603 0 01 A10 LB7601 J0JBC0000015 C7610 1000P 1 2 TU7601 ENG57818G1 A C D ENG57820G1 B 3 4 5 6 A9 L7608 27u 7 8 9 10 11 A8 R7606 J0JCC0000124 A7 R7607 J0JCC0000124 12 13 14 15 16 17 18 A6 19 20 C7622 470P C7621 470P 21 22 23 24 25 A5 A...

Page 12: ...9Y C7623 0 01 L7610 10u C7618 6V47 C7619 0 01 C7617 0 01 L7605 10u C7616 6V47 L7601 10u C7605 6V47 C7608 0 01 R7601 330 R7611 330 C7601 50V1 D7602 MA4300NM L7603 0 C7603 0 01 A10 LB7601 J0JBC0000015 C7610 1000P 1 2 TU7601 ENG57818G1 A C D ENG57820G1 B 3 4 5 6 A9 L7608 27u 7 8 9 10 11 A8 R7606 J0JCC0000124 A7 R7607 J0JCC0000124 12 13 14 15 16 17 18 A6 19 20 C7622 470P C7621 470P 21 22 23 24 25 A5 A...

Page 13: ...EMATIC DIAGRAM FOR ORDERING WHEN YOU ORDER A PART PLEASE REFER TO PARTS LIST NOTE THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE S TO SYSTEM CONTROL SERVO SECTION R7526 22 TIMER CHECK S7501 EVQ11G09K R7503 3600 R7523 5100 S7516 EVQ11G09K PROG GUIDE R SYSTEM CTL 5V R GND PROG PLAY S7519 EVQ11G09K R7506 12K R7505 12K PICTURE MODE S7520 EVQ11G09K R7520 9100 REW TAPE REFRESH S7503...

Page 14: ...EMATIC DIAGRAM FOR ORDERING WHEN YOU ORDER A PART PLEASE REFER TO PARTS LIST NOTE THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE S TO SYSTEM CONTROL SERVO SECTION R7526 22 TIMER CHECK S7501 EVQ11G09K R7503 3600 R7523 5100 S7516 EVQ11G09K PROG GUIDE R SYSTEM CTL 5V R GND PROG PLAY S7519 EVQ11G09K R7506 12K R7505 12K PICTURE MODE S7520 EVQ11G09K R7520 9100 REW TAPE REFRESH S7503...

Page 15: ...01 2SB709A AMP B A15 A16 A18 A19 A20 A21 A22 A23 A4 A5 A24 A6 A25 A8 A9 A18 A12 B25 B27 B28 B29 B28 B25 B26 B11 B12 B18 B19 B21 B22 B4 B3 B2 B1 B29 C2099 680P R2099 6800 CYLINDER SERVO SPEED LOOP CYLINDER SERVO PHASE LOOP 10 11 SP EX FF REW S VHS PB CAP FG OUT CAP FG IN GND A CYL PFG O REF I REF GND CTL HEAD CTL HEAD CTL AMP REF PB CTL OUT A VDD AD VDD NTSC F ERASE CODE 1 CODE 2 AFC S CURVE SAFETY...

Page 16: ...01 2SB709A AMP B A15 A16 A18 A19 A20 A21 A22 A23 A4 A5 A24 A6 A25 A8 A9 A18 A12 B25 B27 B28 B29 B28 B25 B26 B11 B12 B18 B19 B21 B22 B4 B3 B2 B1 B29 C2099 680P R2099 6800 CYLINDER SERVO SPEED LOOP CYLINDER SERVO PHASE LOOP 10 11 SP EX FF REW S VHS PB CAP FG OUT CAP FG IN GND A CYL PFG O REF I REF GND CTL HEAD CTL HEAD CTL AMP REF PB CTL OUT A VDD AD VDD NTSC F ERASE CODE 1 CODE 2 AFC S CURVE SAFETY...

Page 17: ...R IN F IN OUT2 L GND OUT1 VM2 EC PG PG PG OUT PFG VCC COM VM M1 M2 RNF M3 LOWER SATURATION PREVENT CIRCUIT SOFT SWITCH STARTING CONTROL LOGIC TSD CONTROL LOGIC RRE DRIVE AMP AMP MOTOR DRIVE PRE DRIVE MOTOR DRIVE SIGNAL GENERATOR SELECTOR DIFFERENTIAL AMP DIFFERENTIAL AMP DIFFERENTIAL AMP PG FG COMPOSER 12 13 14 15 16 17 18 NOTE DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERIN...

Page 18: ...R IN F IN OUT2 L GND OUT1 VM2 EC PG PG PG OUT PFG VCC COM VM M1 M2 RNF M3 LOWER SATURATION PREVENT CIRCUIT SOFT SWITCH STARTING CONTROL LOGIC TSD CONTROL LOGIC RRE DRIVE AMP AMP MOTOR DRIVE PRE DRIVE MOTOR DRIVE SIGNAL GENERATOR SELECTOR DIFFERENTIAL AMP DIFFERENTIAL AMP DIFFERENTIAL AMP PG FG COMPOSER 12 13 14 15 16 17 18 NOTE DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERIN...

Page 19: ...063 180 R4062 10K R4061 330K C4061 0 01 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1 2 3 4 5 6 7 80 79 78 77 76 75 74 SP1 SP2 SP1 SP2 DET DET COLOR LEVEL DETECTOR ENVDET HPF COME TANK CR DET MESECAM DET BAND GAP INT EXT FH TRAP REC EQ DET VCA REC MUTE EXT INT SP SP CH2 CH1 P R SP2 B Y INVERT SP1 SP2 SP1 VCA PREAMP REC ON SP ON CH1 CH2 EP ON R P 0 1 3 3 3 0 4 9 5 2 2 4 2 4 2 4 2 3...

Page 20: ...063 180 R4062 10K R4061 330K C4061 0 01 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1 2 3 4 5 6 7 80 79 78 77 76 75 74 SP1 SP2 SP1 SP2 DET DET COLOR LEVEL DETECTOR ENVDET HPF COME TANK CR DET MESECAM DET BAND GAP INT EXT FH TRAP REC EQ DET VCA REC MUTE EXT INT SP SP CH2 CH1 P R SP2 B Y INVERT SP1 SP2 SP1 VCA PREAMP REC ON SP ON CH1 CH2 EP ON R P 0 1 3 3 3 0 4 9 5 2 2 4 2 4 2 4 2 3...

Page 21: ...L EMPH ET LPF PC VIDEO AGC ATT 4dB ATT 10dB ATT 6dB ATT 10dB ATT 10dB 629 TRAP 6dBAMP C K NP CONV B D PILOT ERASE BPF PILOT ADD V AMP SQUE LCH CLEAR SYNC GCL P GCL R P R SD R SD P P R P R P R R P P R P R FEC TRAP L SECAM P L SECAM C ACC INT R L SECAM R SVHS EXT DO DO REC SQPB R SDECK R SDECK R SDECK R SDECK SQPB R SDECK P R R ATP R P R P P R R P SVHS L SECAM SVHS L SECAM GND SQPB SQPB P C ACC MODE...

Page 22: ...L EMPH ET LPF PC VIDEO AGC ATT 4dB ATT 10dB ATT 6dB ATT 10dB ATT 10dB 629 TRAP 6dBAMP C K NP CONV B D PILOT ERASE BPF PILOT ADD V AMP SQUE LCH CLEAR SYNC GCL P GCL R P R SD R SD P P R P R P R R P P R P R FEC TRAP L SECAM P L SECAM C ACC INT R L SECAM R SVHS EXT DO DO REC SQPB R SDECK R SDECK R SDECK R SDECK SQPB R SDECK P R R ATP R P R P P R R P SVHS L SECAM SVHS L SECAM GND SQPB SQPB P C ACC MODE...

Page 23: ...EC MODE AUDIO MAIN SIGNAL PATH IN REC MODE P3301 5 P3301 4 P3301 3 P3301 2 P3301 1 GND FRONT AUDIO GND FRONT VIDEO 1 2 3 4 5 P4951 TO LUMINANCE CHROMINANCE AUDIO SECTION P3301 C 22 4 5 6 7 C4902 470P C D R4902 0 A B 470 C D LB4902 0 A B VLP0147 C D VIDEO IN AUDIO IN JK4951 K2HA204A0036 AV2 NV MV40GC GCS GL EE GCU FRONT SCHEMATIC DIAGRAM 8 6 FRONT SCHEMATIC DIAGRAM 36 ...

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