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Alpine MRP-F300 Service Manual
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Alpine MRP-F300 Service Manual

4 channel power amplifier
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See also: Owner's Manual
SERVICE MANUAL
4 CHANNEL POWER AMPLIFIER
TO ALPINE Home Page
11 / 07-A
T0110700129
MRP-F300

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Summary of Contents for Alpine MRP-F300

  • Page 1 SERVICE MANUAL 4 CHANNEL POWER AMPLIFIER TO ALPINE Home Page 11 / 07-A T0110700129 MRP-F300...
  • Page 2 <Cautions for Safe Repair Work> The following cautions will prevent accidents in the workplace and will ensure safe products. *The symbols indicate caution is needed to prevent injuries and damage to property. The symbols and their meanings follow. If you ignore this symbol and handle the product incorrectly or unsafely, Warning serious injury or death may result.

  • Page 3: Table Of Contents

    MRP-F300 Contents Packing Assembly Parts List Packing Method View Specifications Block Diagram Parts Layout on P.W.Boards and Wiring Diagram Schematic Diagram Terminal Voltage of IC/TR 9 , 10 Exploded View (Cabinet) NOTE : Due to continuing product improvement, specifications and designs are subject to change without notice.

  • Page 4: Packing Assembly Parts List

    MRP-F300 Packing Assembly Parts List Symbol Symbol Part No. Description Part No. Description #1 101 01E23875S01 ASSY,CONN 8P 68-10872Z24 MANUAL,OWNER'S(AO) $1 101 68-10872Z25 MANUAL,OWNER'S(GO) 15E40539S01 COVER,PLATE-R %1 101 15E40540S01 COVER,PLATE-L 68-10872Z25 MANUAL,OWNER'S(GO) &1 101 03E40419S01 SCR,M4X20(BLK) 68-10872Z27 MANUAL,OWNER'S(AOCH) $1 102...

  • Page 5: Specifications

    MRP-F300 Specifications Power Output (20Hz to 20kHz, 4ohm x 4ch, 1.0% T.H.D. (14.4V)) (20Hz to 20kHz, 2ohm x 4ch, 1.0% T.H.D. (14.4V)) (20Hz to 20kHz, 4ohm(BTL) x 2ch, 1.0% T.H.D. (14.4V)) 150W Input Sensitivity (Ref.Output 50W/4ohm, Speaker Input) Gain VR MAX : 0.4V±4dB Gain VR MIN : 8.0V±3dB...

  • Page 6: Block Diagram

    Block Diagram MRP-F300 SENSOR DC off set Over Current Protect SENSOR over temperature Protect(TR) SENSOR RCA-IN CH 1(+) LPF/HPF ISOLATOR GAIN POWER AMP 50-400Hz drive CH 1 CH 1(-) SubSonic MUTE ON/OFF SENSOR DC off set Over Current Protect SENSOR...

  • Page 7: Parts Layout On P.w.boards And Wiring Diagram

    Parts Layout on P.W.Boards and Wiring Diagram MRP-F300 MAIN P.W.Board (Component Side View) IP01 C4203 Q4817 IP55 Q4818 IP54 Q4823 IP53 Q4824 IP52 Q4821 IP51 Q4822 IP50 Q4819 IP49 Q4820 R4202 Q4813 Q4809 Q4816 Q4812 Q4815 Q4811 Q4814 Q4810 C4206...

  • Page 8: Schematic Diagram

    Q4814 Q4605 KTD600K 2SC2412K R4811 Q4819 2SC6011 R4823 Q4613 Q4803 IC1101 KTA1268 2.2 - 1/4 E1513 2SC2412K R1005 C1102 NJM4580V R1113 R1508 4.7k 0.22/50 R4107 R1207 Q4601 R1215 R1509 R1511 E1505 0.1/50 R1524 R1527 C4613 11k - 1/4W 0.22 C1501 560 - 1/4 KTC601U Q4104...

  • Page 9: Terminal Voltage Of Ic/Tr

    MRP-F300 Terminal Voltage of IC/TR Ref.No. IC1001 4.1mV 4.0mV 3.6mV -15.16V 3.1mV 3.9mV 5.2mV 15.06V IC1101 64.0mV 63.1mV 63.6mV -15.15V 63.7mV 63.5mV 63.3mV 15.05V IC1102 64.5mV 63.7mV 63.7mV -15.15V 64.6mV 63.8mV 63.8mV 15.05V IC1103 62.5mV 62.5mV 63.1mV -15.15V 62.1mV 61.8mV 61.8mV...
  • Page 10 MRP-F300 Ref.No. Ref.No. Q4815 0.52V 25.03V 1.09V Q9903 0.80V 14.37V 1.3mV Q4816 0.52V 25.03V 1.09V Q9904 0.80V 14.37V 1.3mV Q4817 -30.2mV 25.01V 0.52V Q9905 0.80V 14.37V 1.3mV Q4818 -33.3mV -25.05V -0.57mV Q9906 0.80V 14.37V 1.3mV Q4819 -30.2mV 25.01V 0.52V Q4820 -33.3mV...

  • Page 11: Exploded View (Cabinet)

    Exploded View (Cabinet) MRP-F300 F001 TML9001 F002 TML4201 HL9001 SW1501 VOL1501 VOL1402 VOL1502 SW1502 SW1901 JK1001 VOL1401 CB1001 TO PARTS LIST TO CONTENTS - 11 -...