Akai ACR-143MP Service Manual Download Page 3

 

3

DISASSEMBLY INSTRUCTIONS 

 

1.    Using the unlock key that came with the unit or a similar tool, unlock the Mounting Box and remove 

toward the rear of the unit. 

 

2.    Remove two screws (A) located on the rear of the top cabinet then remove the Top Cabinet. 

 

3.  Remove two screws (B) located on the rear of the bottom cabinet then remove the Bottom Cabinet. 

 

4.  Take out the Front Panel and the Ring. 

Remove the screw (C) from

 on the front side of the Base. 

 

5.  Remove two screws (D) from on the right side of the Rear-right Cabinet. 

Remove the screw (E) from on the left side of the Rear-right 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 back of the Rear-right Cabinet then remove the Power IC Bracket 

 

8.    Remove two screws (J) from on the left side of the heat sink. 

 

9.    Remove two screws (K) from on the left side of the heat sink then remove the IC Bracket. 

 

10.    Remove the screw (L) from on the back of the side bracket then remove Wire Clip. 

 

11.    Remove two screws (M) from each side of the base then remove the Base. 

 

12.    Remove three screws (N) from under the main board then remove the Heat Sink, Rear-right Cabinet and the

 

Main Board.

 

 
 
 
 
 
 
 
 
 
 
 
 

 

Summary of Contents for ACR-143MP

Page 1: ...SERVICE MANUAL Model ACR 143MP CD MP3 RECIVER www akai ru...

Page 2: ...nt Locations 7 Alignment Procedures 8 Printed Circuit Boards 10 Exploded Views Panel 17 Exploded View Parts Lists Panel 18 Exploded Views Cabinet 19 Exploded View Parts Lists Cabinet 20 Exploded Views...

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 brack...

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

Page 5: ...l 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...

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

Page 7: ...7 ALIGNMENT LOCATIONS MITSUMI TUNER...

Page 8: ...p 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 p...

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 FRONT BOARD TOP VIEW...

Page 16: ...16 FRONT BOARD BOTTOM VIEW...

Page 17: ...17 EXPLODED VIEW PANEL...

Page 18: ...W O USB S N1202 ROHS Key Board LCD Cover ROHS LCD CD5002TN NEG Black Mask Color Pin 99X25 3MM ROHS LED B L QB02002 09 23 5X99 White ROHS Axis Post ROHS Right Side Block ROHS Contact Spring ROHS Left...

Page 19: ...19 EXPLODED VIEW CABINET...

Page 20: ...S Middle Gear F ROHS 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 Wire Clip 1 0MM...

Page 21: ...CH MS Black ROHS Screw 2 6X6 BH MS ROHS Screw 2 6X6 PH MS BLACK ROHS Screw 2 6X8 BH MS ROHS Screw M2 6X20 PH MS ROHS Screw 2X4 BH ST Black ROHS Screw 2X6 PA ST Black ROHS 4000 012003 09H 4000 002606...

Page 22: ...22 EXPLODED VIEW DECK...

Page 23: ...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 24: ...ING 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 25: ...25 SCHEMATIC DIAGRAM MAIN BOARD...

Page 26: ...26 SCHEMATIC DIAGRAM KEY BOARD...

Page 27: ...27 SCHEMATIC DIAGRAM CD SERVO BOARD...

Page 28: ...105 107 Q601 Q801 803 806 808 811 301 303 701 DQ1 0100 003875 07F TR NPN KTC3875 GR SOT 23 ROHS 15 D601 806 632 808 CPU TO 0200 004148 02 DIODE SMD RLS4148 LL 34 ROHM ROHS 5 ZD302 0200 050033 54 ZENER...

Page 29: ...RES SMD 22 5 1 10W 0603 ROHS 3 R636 0700 063221 00 RES SMD 220 5 1 10W 0603 ROHS 1 R615 R633 R634 R121 R142 R 872 R681 R682 R329 R330 R32 5 R609 0700 063222 00 RES SMD 2 2K 5 1 10W 0603 ROHS 12 R702...

Page 30: ...00S E CAP 3300uF 16V 20 13 25MM ROHS 1 C614 619 624 627 703 706 30 1 302 0600 050225 02 E CAP 2 2uF 50V 20 4 7MM ROHS 12 C815 0600 050335 02 E CAP 3 3uF 50V 20 4 5MM ROHS 1 R640 0700 005022 10 RES 2 2...

Page 31: ...112 23 5 3 5MM TIDAL ROHS 1 VOL 1800 000115 00P VOL ENCODER EC11E15D4MA1 12 11 7 14 5MM POSTEC ROHS 1 2700 500200 110Y LCD CD5002TN NEG BLACK MASK COLOR PIN 99X25 3MM RO HS 1 ZD601 0200 000062 07 E S...

Page 32: ...59 00S IC SC9259 SILAN ROHS 1 U1 0300 016100 01 SDRAM IS42S16100C1 7TI TSOP 50 ISSI ROHS 1 Y1 0400 000169 01 CRYSTAL 16 9344MHZ 30PPM HC 49U SM 20PF SM 1225 ROHS 1 C40 0500 063030 00 CER CAP SMD 3PF 5...

Page 33: ...R13 26 92 123 0700 063153 00 RES SMD 15K 5 1 10W 0603 ROHS 4 R8 0700 063154 00 RES SMD 150K 5 1 10W 0603 ROHS 1 R29 0700 063203 00 RES SMD 20K 5 1 10W 0603 ROHS 1 R112 48 0700 063221 00 RES SMD 220 5...

Page 34: ...ES SMD 4 7K 5 1 10W 0603 ROHS 1 1111 500030 3401 CDF5000 FB EJ PCB 1 2X82 9X28MM 1 EJ 1600 001140 04A SWITCH TACT SMD KPS 1107SW 6 1 3 7 2 5MM TAPPING ROHS 1 Q1 0100 008050 03 TR NPN SS8050C TO 92 B R...

Page 35: ...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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