background image

Model :

RX-1MX8-T

SERVICE  MANUAL

AM/FM-ST ELECTRONIC TUNING RADIO with CASSETTE

and CD PLAYER / CD CHANGER CONTROLLER

RX-1MX8-T,-MT-T

SE017207073E

FEATURES and SPECIFICATIONS .................. 2

OPERATION ................................................... 3,4

CONNECTORS .................................................. 4

BLOCK DIAGRAM .............................................. 5

SYSTEM CONFIGURATION .............................. 5

DISASSEMBLING PROCEDURES ................. 6,7

EXPLODED VIEW and PARTS LIST ................. 8

IC EXPLANATION ......................................... 9,10

ELECTRICAL PARTS LIST ......................... 11,12

PARTS LAYOUT ON PRINTED CIRCUIT BOARD

   PCB-MAIN ............................................... 13,14

   PCB-PANEL .................................................. 15

SCHEMATIC DIAGRAM

   PCB-MAIN,PANEL .................................. 16~20

VOLTAGE ........................................................ 21

WAVEFORM .................................................... 22

2007 AUG.

MITSUBISHI MOTORS

Your company internal use only

Copyright (c) Mitsubishi Electric Corporation

MITSUBISHI ELECTRIC CORP. SANDA WORKS

CONTENTS

PART No.

: 8701A209

MELCO CODE

: 34M140

Model :

RX-1MX8-MT-T

PART No.

: 8701A209

MELCO CODE

: 349308

For the mecha part, please refer to the service manual of 

G-MECHA(955511) (2007 JUN.)

.

Summary of Contents for RX-1MX8-MT-T

Page 1: ... 8 IC EXPLANATION 9 10 ELECTRICAL PARTS LIST 11 12 PARTS LAYOUT ON PRINTED CIRCUIT BOARD PCB MAIN 13 14 PCB PANEL 15 SCHEMATIC DIAGRAM PCB MAIN PANEL 16 20 VOLTAGE 21 WAVEFORM 22 2007 AUG MITSUBISHI MOTORS Your company internal use only Copyright c Mitsubishi Electric Corporation MITSUBISHI ELECTRIC CORP SANDA WORKS CONTENTS PART No 8701A209 MELCO CODE 34M140 Model RX 1MX8 MT T PART No 8701A209 ME...

Page 2: ...s one by one SD WIDE Seek in AM Tape Player The logic control mechanism by microcomputer G MECHA Power Eject function manual loading Auto tape type detection metal high position and normal not indicator Auto program sensor APS maximum number 6 7 during both forward and reverse playingback Repeat play of one program Any Time Eject function Eject at the all mode included ACC OFF Others CD Changer 6 ...

Page 3: ... Button and Band Select Button AM FM Audio Adjustment Mode Select Button Bass Treble Fader Cancel Balance Auto Tune UP DOWN Button Audio Adjustment UP DOWN Button TAPE PLAYER PART Tape Eject Button Tape Mode Button Repeat ON OFF Button Fast Forward Automatic Program Sensor F APS Button Rewind Button Running Direction Changeover Button Fast Forward Button Rewind Automatic Program Sensor APS Button ...

Page 4: ...3 4 5 6 7 141312 1110 9 8 Power supply Speaker 14P Connector CD Changer 13P DIN Socket Pin No 1 SIG GND 2 Lch 3 4 Rch 5 6 7 ACC Name Pin No 8 9 Battery 10 ILL LEVEL 11 M BUSY 12 M SCK 13 M DATA H SHIELD EARTH Name CD Changer 13P DIN Socket Power supply Speaker 14P Connector 8 Speaker FL _ 9 Illumination _ 10 Battery 11 Accessory 12 13 Speaker RL _ 14 Speaker RR _ 1 Speaker FR 2 Speaker FL 3 Illumi...

Page 5: ... ACC 5V POWER SUPPLY AM FM POWER SUPPLY ELECTRONIC VOLUME LCD ILLUMINATION LCD DRIVER LCD DISPLAY OPERATION KEY SWITCH VOLUME CONTROL ENCODER 1 SIG GND 2 Lch 3 N C 4 Rch 5 N C 6 N C 7 ACC 8 N C 9 BATT 10 LAMP Vcc 11 M BUSY 12 M SCK 13 M DATA M BUS BUFFER BUTTON ILLUMINATION 1 SIG GND 2 Lch 3 Rch 4 GND 5 9V 6 BATT 7 END L 8 BLANK 9 END R 10 M3 FF 11 M2 PLAY 12 M1 DOLBY 13 PKIN MTL 14 M0 MTL 15 POWE...

Page 6: ...EDURES 2 Removal of G MECHA See Fig 2 1 Unscrew the four screws 5 2 Remove the FLAT CABLE 19P 3 Remove the G MECHA Fig 2 1 Removal of COVER HEAT SINK See Fig 1 1 Unscrew the four screws 1 2 Remove the COVER 3 Unscrew the two screws 2 two screws 3 and two screws 4 4 Remove the HEAT SINK Fig 1 ...

Page 7: ...crews 8 2 Remove the BRACKET DECK 3 Unscrew the two screws 9 one screw 10 4 Unlatch the five hooks b 5 Remove the PCB MAIN Fig 4 Fig 3 3 Removal of ASSY PANEL PCB PANEL See Fig 3 1 Unlatch the eight hooks a 2 Remove the ASSY PANEL 3 Unscrew the four screws 6 remove the KNOB VOL 4 Remove the PCB PANEL 5 Unscrew the two screws 7 6 Remove the CHASSIS F ...

Page 8: ... HEAT SINK C 3 M007 641K28910 HOLDER LCD B 2 M008 643L30511 SHEET CVR A 1 M009 643L33411 SCREEN LCD B 2 M010 643L63310 SHEET A 1 M011 734L87710 KNOB VOL A 2 M012 761L46810 PRISM LCD B 2 M013 892L45210 ASSY PANEL A 3 M014 940L18515 G MECHA 955511 C 1 M015 943M240O6 NAME CARD RX 1MX8 T 1 A 2 943M240O7 NAME CARD RX 1MX8 MT T 2 A 2 A 653P11046 SCREW S PAN 3X6 B 653P11048 SCREW S PAN 3X10 C 653P11052 S...

Page 9: ...UT 1 RSELO 2 RVRIN 3 RCT 4 RCOM 5 RVROUT 6 RTIN 7 RF1C1 8 RF1C2 9 RF1C3 10 RF3C1 11 RTOUT 23 LFIN 22 LFOUT 21 LROUT 19 CL 18 DI 17 CE 15 TIM 14 RROUT 13 RFOUT 12 RFIN 39 VDD 16 TEST 20 VSS Muting ON Time Control Circuit Ripple Filter Protective circuit Protective circuit Mute circuit Aux circuit Stand by Switch Clip Detect Circuit 16 14 1 15 10 4 12 25 11 9 6 20 7 8 5 3 2 22 17 19 18 21 23 24 13 O...

Page 10: ...SS VDD CONT IN OUT OUT IN 1 2 3 5 4 VDD1 VDD2 38 39 LCD DRIVE VOLTAGE GENERATOR COMMON DRIVER OSCILLATOR CONTROL LOGIC SEGMENT DRIVER DATA LATCH 36 42 44 43 41 33 34 35 1 2 3 4 30 31 32 RES CS D1 CK OSC COM1 COM2 COM3 S1 S2 S3 S4 S30 S31 S32 ...

Page 11: ...14T Q854 8D1 260L042O2 TR CHIP DTA144T Q812 260L042O3 TR CHIP DTC144T Q810 811 etc 260P15910 TR CHIP KRA103S Q3 174 etc 260P15411 TR CHIP KRC103S Q813 850 etc 260P16110 TR CHIP KTC3875S Q333 433 etc 260P17010 TR CHIP RT6N230C C814 141L182O1 C CERAMIC CHIP 27pF C173 870 872 141L183O5 C CERAMIC CHIP 100pF C6 101 etc 141L160O9 C CERAMIC CHIP 1000pF C8F0 8F2 141L161O1 C CERAMIC CHIP 1500pF C312 412 14...

Page 12: ... CHIP RESISTORS COILS IC CONNECTORS P891 452L34211 CONNECTOR 14P J901 452P151O5 CONNECTOR 14P P830 452P27814 CONNECTOR 14P J8A0 452L214O9 CONNECTOR 19P SCT101 449L076O2 SOCKET ANT J801 449L098O3 SOCKET DIN 13P PL903 906 253L47610 LAMP CHIP PL901 902 253L47611 LAMP CHIP X801 285L005O3 CRYSTAL LCD901 289P17810 LCD FE101 295P21514 TUNER AMFM Z1 299P136O2 PROTECTOR CHIP VR901 430L026O1 SW ROTARY SW901...

Page 13: ...TO PCB PANEL J901 PCB MAIN PARTS LAYOUT ON PRINTED CIRCUIT BOARD MODEL RX 1MX8 T MT T PARTS SIDE 13 ...

Page 14: ...TO G MECHA PCB MAIN PARTS LAYOUT ON PRINTED CIRCUIT BOARD MODEL RX 1MX8 T MT T PATTERN SIDE 14 ...

Page 15: ...TO PCB MAIN P830 PCB PANEL PARTS LAYOUT ON PRINTED CIRCUIT BOARD MODEL RX 1MX8 T MT T 15 PARTS SIDE PATTERN SIDE ...

Page 16: ...MODEL RX 1MX8 T MT T PCB MAIN PANEL Vol 1 Vol 2 Vol 3 Vol 4 SCHEMATIC DIAGRAM 16 ...

Page 17: ...17 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 1 ...

Page 18: ...18 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 2 ...

Page 19: ...19 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 3 ...

Page 20: ...20 SCHEMATIC DIAGRAM PCB MAIN PANEL MODEL RX 1MX8 T MT T Vol 4 ...

Page 21: ...4 5 25 CLIP 0 0 23 POWER KEY Power key input L Key ON I 5 0 5 0 5 0 61 NC Flash si For program download O 0 0 0 0 0 0 26 LF1C3 4 7 24 VOL IN1 Volume encoder input A I 0 0 0 0 0 0 62 NC Fiash so For program download O 0 0 0 0 0 0 27 LF1C2 0 0 25 VOL IN2 Volume encoder input B I 0 0 0 0 0 0 63 NC Flash sck For program download O 0 0 0 0 0 0 28 LF1C1 4 5 26 Not used O 0 0 0 0 0 0 64 Not used O 0 0 0 ...

Page 22: ... CH2 46pin BLANK CH3 10pin VOL CE CH3 47pin ENDR CH4 72pin LCD CE CH4 48pin PKIN MTL Time axis 10µsec div Time axis 10msec div CH1 CH1 CH2 CH2 CH3 CH3 CH4 CH4 2 TAPE FORWARD PLAY 4 X tal IC801 PCB MAIN IC801 PCB MAIN CH1 45pin ENDL CH1 76pin X2 CH2 46pin BLANK CH2 77pin X1 CH3 47pin ENDR CH4 48pin PKIN MTL Time axis 200nsec div Time axis 50msec div CH1 CH1 CH2 CH2 CH3 CH4 22 ...

Reviews: