McIntosh MX136, Service Manual

Page 1: ...hematic and PCB 42 47 Video Schematic and PCB 48 50 Input Schematic and PCB 51 56 Component Video Schematic and PCB 57 60 Tuner AM FM Alignment Procedure 61 62 Tuner RAA1 Schematic and PCB 63 66 Balanced Schematic and PCB 67 70 HDMI Module 71 HDMI Power Supply 72 Parts List 73 90 Exploded Views and Parts Lists 91 94 CONTENTS SERVICE MANUAL Serial Number XM1001 And Above SERIAL NO XM1001 And Above ...

Page 2: ...2dBat30Hz Treble Control 12dBat10 000Hz General Specifications PowerRequirements 100 Volts 50 60Hz at 65 watts 110Volts 50 60Hz at 65 watts 120 Volts 50 60Hz at 65 watts 220 Volts 50 60Hz at 65 watts 230 Volts 50 60Hz at 65 watts 240 Volts 50 60Hz at 65 watts Note Refer to the rear panel of the MX136 for the correct voltage Overall Dimensions Width is 17 3 4 inches 45 09cm Height is 9 7 16 inches ...

Page 3: ...ING Parts marked with the symbol have critical characteristics Use only replacement parts recom mended by the manufacturer NOTES REAR PANEL 3 CaptureRatio 1 2dB Alternate Channel Selectivity 75dB Spurious Response 100dB Image Response 75dB RFIntermodulation 65dB Stereo Separation 45dBat100Hz 45dBat1 000Hz 35dBat10 000Hz SCARejection 65dB AM Tuner Specifications Sensitivity 20uV ExternalAntenna Inp...

Page 4: ...4 SECTION LOCATIONS BOTTOM VIEW WITH COVER REMOVED TOP VIEW WITH COVER REMOVED ...

Page 5: ...MX136 5 6 BLOCK DIAGRAM ...

Page 6: ...7 8 BLOCK DIAGRAM con t ...

Page 7: ...9 11 10 INTERCONNECT MX136 1 ...

Page 8: ...12 14 13 DISPLAY 750565 SH 1 OF 2 2A BC ...

Page 9: ...15 17 16 DISPLAY 750565 SH 2 0F 2 MX136 2A BC ...

Page 10: ...18 20 19 2A SURROUND 750570 SH 1 OF 6 3 KEYBOARD SECTION 750568 2C LED SECTION 750569 2B DISPLAY CONTROL SECTION 750565 ...

Page 11: ...SURROUND 750570 SH 2 OF 6 3 21 23 22 MX136 ...

Page 12: ...24 26 25 3 SURROUND 750570 SH 3 OF 6 ...

Page 13: ...MX136 27 28 SURROUND 750570 SCH 4 OF 6 3 ...

Page 14: ...29 30 SURROUND 750570 SCH 5 OF 6 3 ...

Page 15: ...MX136 SURROUND 750570 SCH 6 OF 6 3 31 32 ...

Page 16: ...SURROUND 750570 PCB 3 33 34 ...

Page 17: ...SURROUND 750570 PCB 3 33 34 ...

Page 18: ...MX136 35 36 NOTES ...

Page 19: ...37 38 DATA 750562 SCH 1 OF 2 4 ...

Page 20: ...39 41 40 DATA 750562 SH 2 OF 2 4 MX136 ...

Page 21: ...S VIDEO 750564 SH 1 OF 2 5 42 44 43 ...

Page 22: ...45 47 46 S VIDEO 750564 SH 2 OF 2 5 MX136 ...

Page 23: ...48 50 49 VIDEO 750563 6 ...

Page 24: ...51 53 52 INPUT 750561 SH 1 OF 2 7 MX136 ...

Page 25: ...54 56 55 INPUT 750561 SH 2 OF 2 7 INPUT 750561 7 ...

Page 26: ...COMPONENT VIDEO 750566 8 57 59 58 MX136 ...

Page 27: ...60 FM MIX C62 FM RF and C63 FM ANT for best sensitivity 10 Repeat 8 and 9 until no improvement in sensitivity is noted 11 Tune Tuner to 90MHz with no RF Input and adjust T9 FM DETector Primary for zero volts between TP1 and TP2 relative connector J6 12 Tune the Generator to 90MHz and adjust the RF Output to 1000uV and 100 MONO modulation at 1000Hz Then adjust T8 FM DETector SECondary for lowest di...

Page 28: ...MX136 TUNER 049084 SCH 9A 63 64 ...

Page 29: ...TUNER 049084 PCB 65 66 RAA1 SECTION 049084 SCH and PCB 9A 9B ...

Page 30: ...MX136 BALANCED 750567 SCH 67 68 10 ...

Page 31: ...BALANCED 750567 PCB 10 69 70 ...

Page 32: ...MX136 HDMI MODULE 750623 11 71 ...

Page 33: ...HDMI POWER SUPPLY 750599 12 72 ...

Page 34: ...SPLAY DRIVER 133549 IC2 SOCKET IC 40 PIN 178133 IC4 IC OCTAL D TYPE FLIP FLOP 133603 IC5 IC QUAD ANALOG SWITCH HI SPEED 133342 IC6 IC OCTAL BUFFER 3 STATE 133349 IC6 SOCKET IC 20 PIN 178181 IC7 IC OCTAL BUFFER 3 STATE 133349 IC7 SOCKET IC 20 PIN 178181 IC10 IC QUAD ANALOG SWITCH HI SPEED 133342 IC11 IC SRAM 133659 IC11 SOCKET IC 28 PIN 178126 IC13 IC OCT 3 STT NONINVERTING 133654 IC14 IC PROG MX13...

Page 35: ...GMENT YELLOW BAR 058146 DS21 LED 2 SEGMENT YELLOW BAR 058146 DS22 LED 2 SEGMENT YELLOW BAR 058146 DS23 LED 2 SEGMENT YELLOW BAR 058146 DS24 LED 2 SEGMENT YELLOW BAR 058146 DS25 LED 2 SEGMENT YELLOW BAR 058146 DS26 LED 2 SEGMENT YELLOW BAR 058146 DS27 LED 2 SEGMENT YELLOW BAR 058146 DS29 LED 2 SEGMENT YELLOW BAR 058146 DS30 LED 2 SEGMENT YELLOW BAR 058146 DS34 LED ARRAY 5 YELLOW RECTANGLE 058127 DS...

Page 36: ...T 3300UF 35V 066509 C55 CAP ELECT 3300UF 35V 066509 C56 CAP ELECT 3300UF 35V 066509 3 SURROUND PCB 750570 C58 CAP ELECT 18000UF 16V 066460 C59 CAP ELECT 10UF 50V 066445 C60 CAP ELECT 10UF 50V 066445 C61 CAP ELECT 10UF 16V 066580 C62 CAP ELECT 10UF 16V 066580 C65 CAP ELECT 10UF 16V 066580 C66 CAP ELECT 10UF 16V 066580 C67 CAP ELECT 10UF 16V 066580 C68 CAP ELECT 10UF 16V 066580 C69 CAP ELECT 10UF 16...

Page 37: ...6V 066580 C257 CAP ELECT 10UF 16V 066580 C258 CAP MONO 22PF 200V 10 NPO 061339 C259 CAP MONO 22PF 200V 10 NPO 061339 C260 CAP MONO 22PF 200V 10 NPO 061339 C261 CAP MONO 22PF 200V 10 NPO 061339 C262 CAP ELECT 10UF 16V 066580 C263 CAP ELECT 10UF 16V 066580 C264 CAP ELECT 10UF 16V 066580 C265 CAP ELECT 10UF 16V 066580 C280 CAP MONO 1UF 50V 20 Z5U 061346 C281 CAP MONO 1UF 50V 20 Z5U 061346 C282 CAP MO...

Page 38: ...R 133596 IC59 COUPLER OPTICAL SCHMITT OUTPUT 131030 IC66 IC SPST QUAD FET SWITCHES N O 133580 IC69 IC OPERATIONAL AMPLIFIER 133626 IC70 IC OCTAL DAR TRNS ARRY W DIODE 133624 IC71 IC SPST QUAD FET SWITCHES N O 133580 IC73 IC QUAD OPERATIONAL AMPLIFIER 133596 IC80 IC 5V 1 5A REGULATOR LOW DROP 133610 IC80 INSULATOR ISOSTRATE TO 220 084133 IC91 IC VOLUME CONTROL 133583 IC92 IC VOLUME CONTROL 133583 I...

Page 39: ...144678 R74 RES NETWORK 2 X 22K ISO 144689 R78 RES NETWORK 2 X 100 OHM ISO 144680 R79 RES NETWORK 2 X 100 OHM ISO 144680 R82 RES MF 1 65K 1 1 4W 144516 R87 RES MF 10K 1 1 4W 144504 R88 RES MF 8 25K 1 1 4W 144549 R89 RES MF 20K 1 1 4W 144524 R90 RES MF 8 25K 1 1 4W 144549 R91 RES MF 20K 1 1 4W 144524 R115 RES MF 100K 1 1 4W 144528 R116 RES MF 3 32K 1 1 4W 144518 R117 RES MF 20K 1 1 4W 144524 R118 RE...

Page 40: ...R326 RES MF 1 65K 1 1 4W 144516 R327 RES NETWORK 2 X 22K ISO 144689 R328 RES NETWORK 2 X 22K ISO 144689 R330 RES NETWORK 2 X 100 OHM ISO 144680 R340 RES FP 10 OHM 5 1 4W 137105 R350 RES MF 10 OHM 1 1 4W 144553 R360 RES MF 4 75K 1 1 4W 144520 R361 RES MF 4 75K 1 1 4W 144520 R375 RES MF 3 32K 1 1 4W 144518 R376 RES MF 1 65K 1 1 4W 144516 R380 RES NETWORK 2 X 100 OHM ISO 144680 R382 RES NETWORK 2 X 1...

Page 41: ... 5 10 122394 L5 CHOKE 18UH 5 10 122394 L6 CHOKE 18UH 5 10 122394 L7 CHOKE 18UH 5 10 122394 L8 CHOKE 18UH 5 10 122394 L9 CHOKE 18UH 5 10 122394 L10 CHOKE 18UH 5 10 122394 OPT1 FIBER OPTIC RECEIVER 058179 OPT2 FIBER OPTIC RECEIVER 058179 OPT3 FIBER OPTIC RECEIVER 058179 OPT4 TRANSMITTER FIBER OPTIC 058180 PCB1 PC BD DATA 129774 R1 RES NETWORK 5 X 100 ISO 144677 R2 RES NETWORK 5 X 100 ISO 144677 R3 R...

Page 42: ...4644 R8 RES MF 75 OHM 1 1 4W 144644 R9 RES MF 75 OHM 1 1 4W 144644 R10 RES MF 75 OHM 1 1 4W 144644 R11 RES MF 806 OHM 1 1 4W 144512 R12 RES MF 75 OHM 1 1 4W 144644 R13 RES MF 75 OHM 1 1 4W 144644 R14 RES MF 75 OHM 1 1 4W 144644 R15 RES MF 806 OHM 1 1 4W 144512 R16 RES MF 75 OHM 1 1 4W 144644 R17 RES MF 75 OHM 1 1 4W 144644 R18 RES MF 75 OHM 1 1 4W 144644 R19 RES MF 75 OHM 1 1 4W 144644 R20 RES MF ...

Page 43: ...66380 C36 CAP ELECT 47UF 16V 066380 C37 CAP ELECT 47UF 16V 066380 C38 CAP ELECT 47UF 16V 066380 C39 CAP ELECT 47UF 16V 066380 C40 CAP ELECT 47UF 16V 066380 C41 CAP ELECT 47UF 16V 066380 C42 CAP ELECT 47UF 16V 066380 C43 CAP ELECT 47UF 16V 066380 C44 CAP ELECT 47UF 16V 066380 C45 CAP ELECT 47UF 16V 066380 C46 CAP ELECT 47UF 16V 066380 C48 CAP MONO 1UF 50V 20 Z5U 061346 C50 CAP MONO 1UF 50V 20 Z5U 0...

Page 44: ...F 50V 20 Z5U 061346 C18 CAP MONO 1UF 50V 20 Z5U 061346 C19 CAP MONO 1UF 50V 20 Z5U 061346 C20 CAP MONO 1UF 50V 20 Z5U 061346 C21 CAP MONO 1UF 50V 20 Z5U 061346 C22 CAP MONO 1UF 50V 20 Z5U 061346 C23 CAP MONO 1UF 50V 20 Z5U 061346 C24 CAP MONO 1UF 50V 20 Z5U 061346 C25 CAP MONO 1UF 50V 20 Z5U 061346 C26 CAP MONO 1UF 50V 20 Z5U 061346 C27 CAP MONO 1UF 50V 20 Z5U 061346 C28 CAP MONO 1UF 50V 20 Z5U 06...

Page 45: ...8 POS MALE FRICTION LOCK 117275 PCB1 PC BD INPUT 129808 Q3 TRANSISTOR NPN SILICON 132317 R1 RES MF 100K 1 1 4W 144528 R3 RES MF 10K 1 1 4W 144504 R5 RES MF 47 5K 1 1 4W 144526 R6 RES MF 47 5K 1 1 4W 144526 R7 RES MF 1K 1 1 4W 144513 R8 RES MF 1K 1 1 4W 144513 R9 RES MF 47 5K 1 1 4W 144526 R10 RES MF 47 5K 1 1 4W 144526 R11 RES MF 47 5K 1 1 4W 144526 R12 RES MF 47 5K 1 1 4W 144526 R14 RES MF 95 3 O...

Page 46: ...7UF 25V 20 BP 066556 C50 CAP MONO 220PF 200V 10 NPO 061342 C61 CAP MONO 1UF 50V 20 Z5U 061346 C62 CAP ELECT 10UF 50V 066445 C63 CAP MONO 1UF 50V 20 Z5U 061346 C64 CAP ELECT 10UF 50V 066445 C67 CAP MONO 22PF 200V 10 NPO 061339 C68 CAP MONO 1000PF 50V 10 NPO 061344 C69 CAP MONO 10PF 200V 10 NPO 061338 C70 CAP MONO 10PF 200V 10 NPO 061338 C71 CAP MONO 22PF 200V 10 NPO 061339 C72 CAP MONO 22PF 200V 10...

Page 47: ...W 144512 R75 RES MF 10K 1 1 4W 144504 R76 RES MF 806 OHM 1 1 4W 144512 R77 RES MF 806 OHM 1 1 4W 144512 R78 RES MF 75 OHM 1 1 4W 144644 R79 RES MF 75 OHM 1 1 4W 144644 R80 RES MF 75 OHM 1 1 4W 144644 R88 RES MF 100K 1 1 4W 144528 R89 RES MF 4 75K 1 1 4W 144520 R90 RES MF 4 75K 1 1 4W 144520 R91 RES MF 10K 1 1 4W 144504 R92 RES MF 10K 1 1 4W 144504 R94 RES CF 0 OHM 5 1 4W 141554 R96 RES CF 0 OHM 5 ...

Page 48: ... SILICONE DIODE 070047 D11 TUNING DIODE 070125 D12 TUNING DIODE 070125 Ref No Description Part No TUNER RAA1 SECTION PCB 049084 Cont d Ref No Description Part No PARTS LIST Cont d MX136 Ref No Description Part No D101 TUNING DIODE 070125 D102 SILICONE DIODE 070047 D103 SILICONE DIODE 070047 D104 SILICONE DIODE 070047 FN1 FILTER CERAMIC 10 7MHZ 180056 FN2 FILTER CERAMIC 10 7MHZ 180056 FN3 FILTER CE...

Page 49: ...UF 50V 20 Z5U 061346 C6 CAP MONO 1UF 50V 20 Z5U 061346 C7 CAP MONO 1UF 50V 20 Z5U 061346 C8 CAP ELECT 10UF 50V 066445 C9 CAP MONO 100PF 100V 10 NPO 061341 C10 CAP MONO 100PF 100V 10 NPO 061341 C11 CAP MONO 100PF 100V 10 NPO 061341 C12 CAP MONO 100PF 100V 10 NPO 061341 C13 CAP MONO 100PF 100V 10 NPO 061341 C14 CAP MONO 100PF 100V 10 NPO 061341 C15 CAP MONO 100PF 100V 10 NPO 061341 C16 CAP ELECT 10U...

Page 50: ... 144689 R23 RES MF 10 OHM 1 1 4W 144553 R24 RES NETWORK 2 X 22K ISO 144689 R25 RES MF 10 OHM 1 1 4W 144553 R31 RES MF 20K 1 1 4W 144524 R32 RES MF 20K 1 1 4W 144524 R33 RES MF 100 OHM 1 1 4W 144568 R34 RES MF 100 OHM 1 1 4W 144568 R35 RES MF 100 OHM 1 1 4W 144568 R36 RES MF 100 OHM 1 1 4W 144568 R37 RES MF 100 OHM 1 1 4W 144568 R38 RES MF 100 OHM 1 1 4W 144568 R39 RES MF 100 OHM 1 1 4W 144568 R40 ...

Page 51: ...CAP ELECT 100UF 25V 066573 D1 DIODE RECT SI 3A 100V 070176 D2 DIODE RECT SI 3A 100V 070176 D3 DIODE RECT SI 3A 100V 070176 D4 DIODE RECT SI 3A 100V 070176 D5 DIODE SILICON 070174 HS1 SUB HEATSINK 018751 IC1 IC 5V 1 5A REGULATOR LOW DROP 133610 IC2 IC REGULATOR 3 3V LOW DROPOUT 133630 J1 CONN 4 PIN 117215 J2 CONN MALE 5 PIN 0 1 POST ASSY 117216 K1 RELAY POWER TV5 24V 087069 ISOSTRATE POWER SUPPLY 0...

Page 52: ...MX136 91 92 MX136 EXPLODED VIEW ...

Page 53: ...54 SCREW TAPTITE 6 32 X 1 4 PH PN BLK 39 005738 TRAY 40 159340 TRANSFORMER R CORE POWER 41 402045 KEP NUT 6 32 SPECIAL 42 017160 TAB MOUNTING 140 DIA MTG 43 017329 CABLE TIE HT5 9 44 074091 TERMINAL BLOCK AC 45 402022 NUT MACH 4 40 X 3 16 X 1 16 46 404004 WASHER LOCK 5 X 255 INT STAR 47 404001 WASHER FLAT STEEL 4 X 9 32 X 025 48 178160 HOLDER FUSE 5 X 20 CHASSIS MOUNT 49 400354 SCREW SEMS 2 65 X 3...

Page 54: ...95 MX136 REPACKING INSTRUCTION ...

Page 55: ...onstant upgrading of McIntosh products circuitry and components the Company cannot insure and does not warrant the accuracy of the within schematic material which is intended for information only McINTOSH LABORATORY INC 2 CHAMBERS STREET BINGHAMTON NEW YORK 13903 Printed in U S A Part Number 041071 SERVICE MANUAL SERIAL NO XM1001 And Above MX136 A V CONTROL CENTER ...