Akai ACR-49MP Service Manual Download | Manualshive

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SPECIFICATIONS

T. H. D........................................................................................................................................... Less than 0.35%

Signal to Noise Radio ................................................................................................................... More than 60 dB

Channel Separation...................................................................................................................... More than 60 dB

Frequency Response .......................................................................................................................... 20Hz-20kHz

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 – 74.0MHz (FM 87.5 – 108.0MHz)

................................................................................................................................................... MW 530-1710 kHz

Sensitivity............................................................................................................................... FM 3 µV (S/N=30dB)

......................................................................................................................................... MW 32 dBµ (S/N=20 dB)

Specifications are subject to change without notice.

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Summary of Contents for ACR-49MP

Page 1: ...SERVICE MANUAL Model ACR 49MP CD MP3 RECIVER www akai ru ...

Page 2: ...ent Locations 7 Alignment Procedures 8 Printed Circuit Boards 9 Exploded Views Panel 15 Exploded View Parts Lists Panel 16 Exploded Views Cabinet 17 Exploded View Parts Lists Cabinet 18 Exploded Views Deck 19 Exploded View Parts Lists Deck 20 Schematic Diagram 22 Electrical Parts List 25 Specifications 31 ...

Page 3: ... Cabinet and the screw F on the right side of the heat sink 6 Remove two screws G from under the deck front bracket then remove the Deck Front Bracket Remove two screws H from under the deck rear bracket then remove the Deck Rear Bracket and the Deck 7 Remove two screws I from on the left side of the heat sink 8 Remove two screws J from on the left side of the heat sink then remove the IC Bracket ...

Page 4: ...4 DISASSEMBLY DIAGRAM ...

Page 5: ...el 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 section is voltage on the antenna Test Diagram 4 SPEAKER VTVM DISTORTION METER 2 SPEAKER FRONT SPK SPK FL RL SPR MAIN UNIT AM SG VTVM ANTANNA DUMMY FM SG MODULATOR STEREOS MPX ANT FRONT SPK SPE FR RR...

Page 6: ...6 BLOCK DIAGRAM ...

Page 7: ...7 ALIGNMENT LOCATIONS MITSUMI BOARD ...

Page 8: ...ep Generator 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 at maximum separating more than 30 dB FM SNC Adjustment 98 1 MHz Dev 75 kHz L R 90 Int 1 kHz 60dBµV output 98 1 MHz 40 dBµ 98 1 MHz VR2 Stereo Separation 25 dB 5 dB Stop SENS Signal Generator to...

Page 9: ...9 PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW ...

Page 10: ...10 MAIN BOARD BOTTOM VIEW ...

Page 11: ...11 KEY BOARD TOP VIEW ...

Page 12: ...12 KEY BOARD BOTTOM VIEW ...

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

Page 14: ...14 CD SERVO BOARD BOTTOM VIEW ...

Page 15: ...15 EXPLODED VIEW PANEL ...

Page 16: ...l Red Warm Red C ROHS Adaptor For BND ROHS EJ L Up S N1204 ROHS Decorated Ring S N1204 ROHS LOC MON DSP MUT L UP S N1204 ROHS 4D Knob Clear Red ROHS Adaptor For 4D ROHS B L For 4D ROHS B L For CD Mouth ROHS B L For Main Key ROHS Key Board LCD Bracket Real E ROHS CD3001 LCD TN NEG COLOR Black Mask 22X84 PIN ROHS CD1007 B Light White ROHS Screw Ø2X8 BA ST Black ROHS AKAI Logo S N0000 Silver Hot Stam...

Page 17: ...17 EXPLODED VIEW CABINET ...

Page 18: ... East Furepe 1 Pack 65 108MHJ ROHS Power IC Bracket ROHS IC Bracket For Regulator ROHS Wire Clip 1 0MM ROHS Screw Ø5X18 HH ROHS Spring Washer M5 ROHS Hexagon Nut M5 ROHS Screw Ø2 6 X 4 BH MS ROHS Screw Ø2 6 X 5 BH TAPTITE ROHS Screw Ø2 6 X 6 BH MS ROHS Screw Ø2 6 X 6 BH MS Black ROHS Screw Ø2 6 X 8 BH MS ROHS Screw M2 6 X 20 PH MS ROHS 5100 0E2022 80A 5100 0E2020 00 6100 300002 002 9400 002050 01 ...

Page 19: ...19 EXPLODED VIEW DECK ...

Page 20: ...OAD 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 03 SLICON SUS 303 SUM24L NI PLATE PVC SECC T1 0 SUM24L NI PLATE SUM24L NI PLATE POM F20 03 POM F20 03 CR WRT POM F20 03 POM F20 03 POM F20 03 SUS304WPB SUS304WPB POM F20 03 POM F20 03 POM F20 03 POM ...

Page 21: ...PRING 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 SUM24L NI PLATE CA H 0 M S 1 7 2 5 SUM24L NI PLATE BUTHYL SUS304WPB RF 400CA 12265 HYTRELL 5526 POM F20 03 CA H 0 M S 2 2 FF 050SH 11190 POM F20 03 KNN11 PCD18 R H W W TTB2 5 1007 28 SUS304WPB POM F...

Page 22: ...22 SCHEMATIC DIAGRAM MAIN BOARD ...

Page 23: ...23 SCHEMATIC DIAGRAM KEY BOARD ...

Page 24: ...24 SCHEMATIC DIAGRAM CD SERVO BOARD ...

Page 25: ... 0100 008550 03 TR PNP SS8550C TO 92 B ROHS 1 D802 0200 004001 00 DIODE IN4001 DO 41 ROHS 1 D803 D805 0200 004148 00A DIODE 1N 4148 DO 35 TAPPING ROHS 2 D601 D806 D632 D808 0200 004148 02 DIODE SMD RLS4148 LL 34 ROHM ROHS 4 D801 0200 005401 00 DIODE IN5401 DO 27 ROHS 1 ZD302 0200 050033 54 ZENER DIODE SMD 3 3V 0 5W 2 LL 34 ROHS 1 ZD802 0200 050036 02 ZENER DIODE SMD 3 6V 0 5W 2 LL 34 ROHS 1 ZD801 ...

Page 26: ...7 06 C301 C302 0600 050225 02 E CAP 0 22uF 50V 20 4 5MM ROHS 12 C815 0600 050335 02 E CAP 3 3uF 50V 20 4 5MM ROHS 1 R640 0700 005022 10 RES 2 2Ω 5 1 2W ROHS 1 R134 0700 005047 00 RES 4 7Ω 5 1 4W ROHS 1 R854 0700 005100 00 RES 10Ω 5 1 4W ROHS 1 R620 R600 0700 005100 16A RES 10Ω 5 1 16W TAPPING ROHS 2 R837 0700 005103 16A RES 10KΩ 5 1 16W TAPPING ROHS 1 R327 R328 0700 005220 16A RES 22Ω 5 1 16W TAPP...

Page 27: ... 1 10W 0603 ROHS 2 R716 719 0700 063821 00 RES SMD 820Ω 5 1 10W 0603 ROHS 4 R705 R708 R711 R714 0700 063822 00 RES SMD 8 2KΩ 5 1 10W 0603 ROHS 4 R621 0700 063823 00 RES SMD 82KΩ 5 1 10W 0603 ROHS 1 L803 0900 070100 01 MICRO INDUCTOR 10UH AXIAL TYPE ROHS 1 L801 1500 027012 11 TOROIDAL COIL XC 169 110uH V TYPE 27 12MM Xin DeXing ROHS 1 OSC 3100 086120 08 SINGLE SHIELD WIRE 120MM GREY ROHS 1 PC BOARD...

Page 28: ...063102 00 RES SMD 1KΩ 5 1 10W 0603 ROHS 2 R630 0700 063122 00 RES SMD 1 2KΩ 5 1 10W 0603 ROHS 1 R611 0700 063152 00 RES SMD 1 5KΩ 5 1 10W 0603 ROHS 1 R601 R613 0700 063181 00 RES SMD 180Ω 5 1 10W 0603 ROHS 2 R602 R614 0700 063221 00 RES SMD 220Ω 5 1 10W 0603 ROHS 2 R612 0700 063222 00 RES SMD 2 2KΩ 5 1 10W 0603 ROHS 1 R610 0700 063272 00 RES SMD 2 7KΩ 5 1 10W 0603 ROHS 1 R603 0700 063331 00 RES SM...

Page 29: ...3 38 16 EC3A 0500 063104 01 CER CAP SMD 0 1uF 50V 10 X7R 0603 ROHS 39 C67 68 0500 063152 00N CER CAP SMD 1500PF 50V 5 NPO 0603 ROHS 2 C17 26 33 0500 063222 01 CER CAP SMD 2200PF 50V 10 X7R 0603 ROHS 3 C72 0500 063223 01 CER CAP SMD 0 022uF 50V 10 X7R 0603 ROHS 1 EC17A 0500 063225 00 CER CAP SMD 2 2uF 16V 10 Y5V 0805N ROHS 1 C2 13 0500 063270 00 CER CAP SMD 27PF 50V 5 NPO 0603 ROHS 2 C1 0500 063331...

Page 30: ... 3 9KΩ 5 1 10W 0603 ROHS 1 R76 78 0700 063393 00 RES SMD 39KΩ 5 1 10W 0603 ROHS 2 R15 16 0700 063470 00 RES SMD 47Ω 5 1 10W 0603 ROHS 2 R67 68 0700 063471 00 RES SMD 470Ω 5 1 10W 0603 ROHS 2 R42 117 118 126 147 0700 063472 00 RES SMD 4 7KΩ 5 1 10W 0603 ROHS 5 R9 116 0700 063473 00 RES SMD 47KΩ 5 1 10W 0603 ROHS 2 R7 22 24 120 121 0700 063563 00 RES SMD 56KΩ 5 1 10W 0603 ROHS 5 R6 0700 063683 00 RE...

Page 31: ...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 74 0MHz FM 87 5 108 0MHz MW 530 1710 kHz Sensitivity FM 3 µV S N 30dB MW 32 dBµ S N 20 dB Specifications are subject to change without notice ...

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