Akai ACR-49MP Service Manual
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Akai ACR-49MP Service Manual

Cd/mp3–reciver
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CD/MP3–RECIVER
Model:
ACR 49MP
SERVICE MANUAL
www.akai.ru

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Summary of Contents for Akai ACR-49MP

  • Page 1 CD/MP3–RECIVER Model: ACR 49MP 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............................9 Exploded Views (Panel)............................15 Exploded View Parts Lists (Panel) ........................16 Exploded Views (Cabinet) ........................... 17 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 (530, 1710 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 BOARD...

  • 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: Exploded Views (Panel)

    EXPLODED VIEW PANEL...

  • Page 16: Exploded View Parts Lists (Panel)

    Key Board 1121-300630-3108 LCD Bracket Real (E) ROHS 3900-0E2004-00 CD3001 LCD TN NEG COLOR Black Mask 22X84 PIN 2700-300200-110Y ROHS CD1007 B. Light /White ROHS 0200-001007-09 Screw Ø2X8 BA/ST Black ROHS 4000-012008-21 AKAI Logo (S. N0000) Silver Hot Stamp ROHS 5200-0G6340-31...

  • Page 17: Exploded Views (Cabinet)

    EXPLODED VIEW CABINET...

  • Page 18: Exploded View Parts Lists (Cabinet)

    EXPLODED VIEW PARTS LIST CABINET Ref. No. Description RS Part No. Mfr’s Part No. Panel Ring (S.N1204) ROHS 5100-0E2022-80A Base Real (E) /777 ROHS 5100-0E2020-00 Rear-right Cabinet W/Spring For CD-wire ROHS 6100-300002-002 CD MECH. MG205 (205) ROHS 9400-002050-01 Left Cabinet-heat Sink W/Spring ROHS 6100-300004-003 Top Cabinet ROHS 6100-300001-000...

  • Page 19: Exploded Views (Deck)

    EXPLODED VIEW (DECK)

  • Page 20: 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 21 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 22: Schematic Diagram

    SCHEMATIC DIAGRAM (MAIN BOARD)
  • Page 23 SCHEMATIC DIAGRAM (KEY BOARD)
  • Page 24 SCHEMATIC DIAGRAM (CD SERVO BOARD)

  • Page 25: Electrical Parts List

    ELECTRICAL PARTS LIST Ref. No. Part No. Description Q’ty PC BOARD ASSY, MAIN BOARD IC804 0100-007805-00 IC,78L05 TO-92 ROHS D625,D630,D639 0200-004148-02 DIODE SMD RLS4148 LL-34 ROHM ROHS IC601 0300-007313-01 IC SC-7313 (SILAN) ROHS IC801 0300-007388-00 IC TDA7388 (4x40W) ST "Y" ROHS IC602 0300-0F8847-151 CPU RF8847-151 MP3+WMA+TC+RUSSION...
  • Page 26 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty C207 0500-063103-01 CER.CAP SMD 0.01uF 50V ±10% X7R 0603 ROHS C110,C111,C607,C811,C833, 0500-063104-01 CER.CAP SMD 0.1uF 50V ±10% X7R 0603 C819,C663,C664,C630,C600, ROHS C839,C837,C818,C108,C123 C119,C124 0500-063220-00 CER.CAP SMD 22PF 50V ±5% NPO 0603 ROHS C101,C105,C109,C605 0500-063223-01...
  • Page 27 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty R814~817 0700-063274-00 RES SMD 270KΩ ±5% 1/10W 0603 ROHS R615,R633,R634,R121,R142, 0700-063222-00 RES SMD 2.2KΩ ±5% 1/10W 0603 ROHS R872,R681,R682,R329,R330, R325 R702,R703,R705~808,R829,R 0700-063223-00 RES SMD 22KΩ ±5% 1/10W 0603 ROHS 858,R841~844 R108 0700-063331-00 RES SMD 330Ω...
  • Page 28 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty R205 0700-063472-00 RES SMD 4.7KΩ ±5% 1/10W 0603 ROHS R203 0700-063473-00 RES SMD 47KΩ ±5% 1/10W 0603 ROHS R206 0700-063822-00 RES SMD 8.2KΩ ±5% 1/10W 0603 ROHS C204 0600-016106-02 E.CAP 10uF 16V ±20% ∮3.5×5MM ROHS L201 0900-070470-04 M.
  • Page 29 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty 0100-003875-07F TR NPN KTC3875-GR SOT-23 ROHS 0200-050036-54 ZENER DIODE SMD 3.6V 0.5W ±5% LL-34 ROHS 0200-050151-00 ZENER DIODE SMD 5.1V 0.5W LL-34 ROHS 0300-001117-00 VOLTAQE REGULATOR LD1117S ROHS 0300-008310-01 SAMSUNG MP3 AND WMA DECODER S5L8310 ROHS 0300-009226-00K IC S1L9226 ROHS...
  • Page 30 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty L1,5,7 0700-005015-54 RES SMD 1.5Ω +/-5% 1/10W 0805 ROHS 0700-063100-00 RES SMD 10Ω ±5% 1/10W 0603 ROHS R60,61,82,86,87 0700-063102-00 RES SMD 1KΩ ±5% 1/10W 0603 ROHS R20,23,43,44,98,101,113 0700-063103-00 RES SMD 10KΩ ±5% 1/10W 0603 ROHS R102,104 0700-063104-00 RES SMD 100KΩ...

  • Page 31: 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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