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Akai ACR-224MMU, Service Manual

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Summary of Contents for ACR-224MMU

Page 1: ......

Page 2: ...r right bracket then remove the ISO Antenna Socket Short W Holder 7 Remove two screws H from under the deck front bracket then remove the Deck Front Bracket Remove two screws I from under the deck rea...

Page 3: ...DISASSEMBLY DIAGRAM...

Page 4: ...FM MW Power source voltage DC 14 0V Backup voltage is the same as this AF load impedance 4 ohm pure resistance Balance Center position of level Tone Center position The signal strength read in this s...

Page 5: ...BLOCK DIAGRAM...

Page 6: ...ALIGNMENT LOCATIONS MITSUMI BOARD...

Page 7: ...rator Coupling Generator Display Setting Adjustment Remarks Stereo Separation Signal Generator to antenna receptacle 98 1 MHz Int 1 kHz Dev 75 kHz L R 90 Pilot 10 98 1 MHz VR1 Adjust AF output power a...

Page 8: ...PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW...

Page 9: ...MAIN BOARD BOTTOM VIEW...

Page 10: ...KEY BOARD TOP VIEW...

Page 11: ...KEY BOARD BOTTOM VIEW...

Page 12: ...CD SERVO BOARD TOP VIEW...

Page 13: ...CD SERVO BOARD BOTTOM VIEW...

Page 14: ...FRONT BOARD TOP VIEW...

Page 15: ...FRONT BOARD BOTTOM VIEW...

Page 16: ...BT BOARD TOP VIEW...

Page 17: ...BT BOARD BOTTOM VIEW...

Page 18: ...TC ISO BOARD TOP VIEW...

Page 19: ...TC ISO BOARD BOTTOM VIEW...

Page 20: ...21 EXPLODED VIEW PANEL...

Page 21: ...S PHONE OFF BND KB S N1204 ROHS PHONE ON KB S N1204 ROHS KEY BOARD AXIS POST 2 0X60 ROHS RIGHT SIDE BLOCK ROHS CONTACT SPRING ROHS LEFT SIDE BLOCK ROHS E RING 1 5X0 4X0 4MM HARDEN ROHS RE KNOB SPRING...

Page 22: ...23 EXPLODED VIEW CABINET...

Page 23: ...Left Bracket ROHS Deck Front Bracket ROHS Deck Rear Bracket For CD ROHS M FAE347 P21 P22 East Furepe 1 Pack 65 108MHJ ROHS Shield Cover Mitsumi Tuner 0 045KG ROHS IC Bracket For Regulntor ROHS ISO An...

Page 24: ...w M2X3 P H Black ROHS Screw 2 6X4 BH MS ROHS Screw 2 6X5 BH TAPTITE ROHS Screw M2 6X20 PH MS ROHS Screw 2 6X6 BH MS ROHS Screw 2 6X6 PH MS BLACK ROHS Screw 2 6X8 BH MS ROHS Screw 2X4 BH ST Black ROHS...

Page 25: ...26 EXPLODED VIEW DECK...

Page 26: ...AD D GEAR LOAD B GEAR LOAD A PIN LOAD B K GEAR MOTOR GEAR WORM SERVO PCB ASSY SPECIAL SCREW S P RO L SUPPORT DAMPER S P RO CHASSIS MAIN ST 23G FR CA H 0 TT 2 3 SECC T1 0 POM F20 03 POM F20 03 POM F20...

Page 27: ...RING TENSION GEAR PU LEAD SCREW SWITCH SCREW PICK UP FPC WIRE SPRING PU FIBER PAPER S P CAM TRANSIT SCREW INSULATOR COVER SWITCH WASHER PE S P BASE POM F20 03 SECC T1 0 SUS304WPB ABS G F 20 POM F20 03...

Page 28: ...29 SCHEMATIC DIAGRAM MAIN BOARD...

Page 29: ...30 SCHEMATIC DIAGRAM KEY BOARD...

Page 30: ...31 SCHEMATIC DIAGRAM CD SERVO BOARD...

Page 31: ...00 506016 00 CABLE BT CD5060 16PIN SOCKET WIRE P 1 25MM ROHS 1 ZD601 602 0200 000062 07 E S D DIODE SMD NNCD6 2G SOT23 5L ROHS 2 D615 627 108 109 619 621 0200 004148 02 DIODE SMD RLS4148 LL 34 ROHM RO...

Page 32: ...S 8 C208 704 705 706 0500 016225 54 TAN CAP SMD 2 2uF 16V 10 3 2 1 6 1 6MM ROHS 5 C850 0500 016475 10 TAN CAP SMD 4 7uF 16V 10 3 2 1 6 1 6MM ROHS 1 C817 0500 063101 00 CER CAP SMD 100PF 50V 5 NPO 0603...

Page 33: ...0700 063124 00 RES SMD 120K 5 1 10W 0603 ROHS 1 R818 0700 063152 00 RES SMD 1 5K 5 1 10W 0603 ROHS 1 R830 0700 063182 00 RES SMD 1 8K 5 1 10W 0603 ROHS 1 R814 817 0700 063184 00 RES SMD 180K 5 1 10W...

Page 34: ...SMD PURE GREEN LUM 25MCD WL 525NM 0805 WENRUN ROHS 1 LED1 3 5 21 0200 001112 06 M LED SMD BLUE WL 14 5MCD WL 470NM 0805 ROHS 20 D1 0200 004148 02 DIODE SMD RLS4148 LL 34 ROHM ROHS 1 IC601 0300 000091...

Page 35: ...PN 2SC3875G SOT 23 NEC ROHS 2 D616 0200 004148 02 DIODE SMD RLS4148 LL 34 ROHM ROHS 1 ZD301 0200 050091 01 ZENER DIODE SMD 9 1V 0 5W 5 LL 34 ROHS 1 C301 302 0500 003225 10 CER CAP SMD 2 2uF 25V 20 X7R...

Page 36: ...C4 5 0500 063472 01 CER CAP SMD 4700PF 50V 10 X7R 0603 ROHS 2 C60 0500 063681 00 CER CAP SMD 680PF 50V 5 NPO 0603 ROHS 1 C70 0500 063823 01 CHIP 82000PF 10 X7R 0603 SMT ROHS 1 C12 17 26 61 0600 01610...

Page 37: ...12MHZ 30PPM HC 49U S ROHS 1 XT1 0400 000169 00 R CRYSTAL OSCILLATOR 16 9344MHZ 30PPM HC 49U S ROHS 1 SW1 1600 000111 00 SWITCH PUSH LEVER SW 111 8 5 3 3 8MM SHINMEI ROHS 1 CON1 2500 000090 03 RAINBOW...

Page 38: ...0603 ROHS 1 C335 336 0500 063152 01 CER CAP SMD 1500PF 50V 10 X7R 0603 ROHS 2 C331 0600 016107 54 E CAP SMD 100uF 16V 10 6 3 5 5MM ROHS 1 R332 333 0700 063100 00 RES SMD 10 5 1 10W 0603 ROHS 2 R334 0...

Page 39: ...2 R20 23 0700 063154 00 RES SMD 150K 5 1 10W 0603 ROHS 2 R25 0700 063222 00 RES SMD 2 2K 5 1 10W 0603 ROHS 1 R3 8 10 12 13 27 45 0700 063223 00 RES SMD 22K 5 1 10W 0603 ROHS 11 R31 0700 063224 00 RES...

Page 40: ...kHz Stereo Separating FM 30 dB at 1kHz Signal to Noise Ratio FM Better than 50 dB Output Power 4 X 40W Speaker Output Impedance 4 To 8 ohm Power Source DC 12V Negative ground Frequency Range FM 65 0 7...

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