Akai ACR-143MP Service Manual
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Akai ACR-143MP Service Manual

Cd/mp3–reciver
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CD/MP3–RECIVER
Model:
ACR 143MP
SERVICE MANUAL
www.akai.ru

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Summary of Contents for Akai ACR-143MP

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

  • Page 2: Table Of Contents

    CONTENTS Page Disassembly Instructions ............................3 Disassembly Diagram............................. 4 Operation Check..............................5 Block Diagram ................................ 6 Alignment 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) ........................

  • Page 3: Disassembly Instructions

    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.

  • Page 4: Disassembly Diagram

    DISASSEMBLY DIAGRAM...

  • Page 5: Operation Check

    OPERATION CHECK GENERAL SPECIFICATIONS OF SIGNAL Standard frequency 98.1 MHz (65.0, 74.0MHz) (87.5, 107.9 MHz) 1000 kHz (522, 1620 kHz) Signal output 5 mV Modulation 400 Hz 30% MOD. FM Stereo 1 kHz 75kHz DEV. 46% for L only or R only pilot level 8% AF output level FM/MW...

  • Page 6: Block Diagram

    BLOCK DIAGRAM...

  • Page 7: Alignment Locations

    ALIGNMENT LOCATIONS MITSUMI TUNER...

  • Page 8: Alignment Procedures

    ALIGNMENT PROCEDURES FM ADJUSTMENT Equipment Required AM IF/RF signal generator Solid-state voltmeter (SSVM) Regulated DC power supply 2-CH voltmeter Distortion meter FM Alignment Using FM Signal Generator Note: Press the radio power switch to on the radio. Signal generator output must be kept as low as possible to avoid overload and clipping.

  • Page 9: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW...
  • Page 10 MAIN BOARD BOTTOM VIEW...
  • Page 11 KEY BOARD TOP VIEW...
  • Page 12 KEY BOARD BOTTOM VIEW...
  • Page 13 CD SERVO BOARD TOP VIEW...
  • Page 14 CD SERVO BOARD BOTTOM VIEW...
  • Page 15 FRONT BOARD TOP VIEW...
  • Page 16 FRONT BOARD BOTTOM VIEW...

  • Page 17: Exploded Views (Panel)

    EXPLODED VIEW PANEL...

  • Page 18: Exploded View Parts Lists (Panel)

    1PAU~6 Knob (L-UP)(S.N1202) ROHS 5200-NK7136-82 8/9 TRK Knob (L-UP)(S.N1202) ROHS 5200-NK7133-81 5200-NK7127-81Y Power Knob (S.N1202/426C) ROHS BAND/MENU/ST/LOC/TITEL Knob (L-UP) (S.N1202) ROHS 5200-NK7131-81 AKAI Logo(S.N0000) Silver Hot Stamp ROHS 5200-0G6240-31 Decoration (F) W/O USB (S.N1202) ROHS 5200-NK7124-80 Key Board 1121-501030-3208 LCD Cover ROHS 3900-0E2104-01 LCD CD5002TN NEG Black Mask Color Pin 99X25.3MM...

  • Page 19: Exploded Views (Cabinet)

    EXPLODED VIEW CABINET...

  • Page 20: Exploded View Parts Lists (Cabinet)

    EXPLODED VIEW PARTS LIST CABINET Ref. No Description RS Part No. Mfr’s Part No. Panel Ring (S.N0000) ROHS 5100-016227-30 Base (F) (MMS+SD) ROHS 5100-0E2124-00 6100-300003-002 Rear-right Cabinet W/Spring FOR CD-WIRE ROHS CD MECH. MG205 (205) ROHS (9400-022050-01/9700- 9400-002050-01 012265-00X1/9700-011190-00X2) Left Cabinet-heat Sink W/Spring ROHS 6100-300004-003 Top Cabinet ROHS 6100-300001-000...
  • Page 21 Ref. No Description RS Part No. Mfr’s Part No. Screw Ø2X3 CH/MS Black ROHS 4000-012003-09H Screw Ø2.6X6 BH/MS ROHS 4000-002606-01 Screw Ø2.6X6 PH/MS BLACK ROHS 4000-002606-20 Screw Ø2.6X8 BH/MS ROHS 4000-002608-01 Screw M2.6X20 PH/MS ROHS 4000-002620-00 Screw Ø2X4 BH/ST Black ROHS 4000-012004-21 Screw Ø2X6 PA/ST (Black) ROHS 4000-012006-20...

  • Page 22: Exploded Views (Deck)

    EXPLODED VIEW (DECK)

  • Page 23: Exploded View Parts Lists (Deck)

    EXPLODED VIEW PARTS LIST (DECK) Ref. No. Description Parts No. Q’ty SENSOR ST-23G SENSOR PCB SCREW CA/H 0” TT 2*3 COVER-UPPER SECC T1.0 LEVER DISC POM (F20-03) GUIDE UP POM (F20-03) BUSHING ROLLER POM (F20-03) ROLLER DISC SLICON SHAFT ROLLER SUS 303 PIN ROLLER SUM24L-NI (PLATE)
  • Page 24 EXPLODED VIEW PARTS LIST - CONTINUED (DECK) Ref. No. Description Parts No. Q’ty CLAMP DISC POM (F20-03) HOLD CLAMPER SECC T1.0 S/P CLAMPER SUS304WPB TURN TABLE ABS G/F 20% BASE PU POM (F20-03) PIN SIDE (A) SUM24L-NI (PLATE) SCREW CA/H 0” M/S 1.7*2.5 PIN SIDE (B) SUM24L-NI (PLATE) DAMPER...

  • Page 25: Schematic Diagram

    SCHEMATIC DIAGRAM (MAIN BOARD)
  • Page 26 SCHEMATIC DIAGRAM (KEY BOARD)
  • Page 27 SCHEMATIC DIAGRAM (CD SERVO BOARD)

  • Page 28: Electrical Parts List

    ELECTRICAL PARTS LIST Ref. No. Part No. Description Q’ty PC BOARD ASSY, MAIN BOARD D630,639,625 0200-004148-02 DIODE SMD RLS4148 LL-34 ROHM ROHS IC601 0300-007313-01 IC SC-7313 (SILAN) ROHS IC602 0300-0F8847-151 CPU RF8847-151 MP3+WMA+TC+RUSSION FONT R721/2(RCA) 0700-063102-00 RES SMD 1KΩ ±5% 1/10W 0603 ROHS R704,709,710,715 0700-063273-00 RES SMD 27KΩ...
  • Page 29 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty C119,124 0500-063220-00 CER.CAP SMD 22PF 50V ±5% NPO 0603 ROHS C101,105,109,605 0500-063223-01 CER.CAP SMD 0.022uF 50V ±10% X7R 0603 ROHS C620~623,665,666,DC1 0500-063224-01 CER.CAP SMD 0.22uF 16V ±10% X7R 0603 ROHS C615,616 0500-063272-01 CER.CAP SMD 2700PF 50V ±10% X7R 0603 ROHS...
  • Page 30 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty R705,R708,R711,R714 0700-063822-00 RES SMD 8.2KΩ ±5% 1/10W 0603 ROHS R621 0700-063823-00 RES SMD 82KΩ ±5% 1/10W 0603 ROHS Q810,305 0100-000435-00S TR NPN BD435S TO-126 FAIRCHLD ROHS Q812 0100-001240-00 TRANSISTOR B1240 ROHS IC802,803 0100-007805-00 IC,78L05 TO-92 ROHS...
  • Page 31 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty Q201/2 0100-003875-07F TR NPN KTC3875-GR SOT-23 ROHS C208 0500-016225-54 TAN CAP SMD 2.2uF 16V ±10% 3.2×1.6×1.6MM ROHS C201~3 0500-063223-01 CER.CAP SMD 0.022uF 50V ±10% X7R 0603 ROHS R209 0700-063100-00 RES SMD 10Ω ±5% 1/10W 0603 ROHS R208 0700-063102-00 RES SMD 1KΩ...
  • Page 32 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty 1121-501030-3208 CDF5010 KB LCD D/S 1.2X43X183MM SW RES 1600-021130-01 TACT SW DT2113CH 250G/4.3 SMD RED 2500-0M0217-20 CONNECTOR SMD MALE 20PIN P=2.0MM H-TYPE EASTSUN ROHS PC BOARD ASSY, SDK/CD SERVO BOARD DECK TO MB 2500-009286-18 FFC WIRE(UNILATERAL PLUG)130MM 18PIN P=1.25MM ROHS...
  • Page 33 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty C14,44 0500-063472-01 CER.CAP SMD 4700PF 50V ±10% X7R 0603 ROHS 0500-063473-01 CER.CAP SMD 0.047uF 50V ±10% X7R 0603 ROHS 0500-063474-01 CER.CAP SMD 0.47uF 25V +80/-20% Y5V 0603 ROHS 0500-063683-01 CER.CAP SMD 0.068uF 50V ±10% X7R 0603 ROHS EC1~5,7~9,16,11,17,EC6 0600-016106-54...
  • Page 34 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty 2500-000090-03 RAINBOW WIRE 90MM 3PIN AWG30# ROHS 2500-001300-16 SOCKET SMD 16PIN P=1.0MM BOTTOM-CONTACT H-TYPE HongDongXing ROHS 2500-053015-20E SOCKET 4PIN CD DECK BoMu ROHS PC BOARD ASSY, FRONT BOARD 2500-010050-16 FFC WIRE (WELDABLE) 50MM 16PIN P=1.0MM ROHS 0200-001112-02J LED SMD RED WL=100MCD WL=625NM...

  • Page 35: Specifications

    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.............................

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