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SERVICE
MANUAL
G
R
A
P
H
I
C
EQUALIZER
EQ-2131/2231/2215
www.inter-m.com
MADE IN KOREA
2003.6 9017100400

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Summary of Contents for Inter-m EQ-2131

  • Page 1 SERVICE MANUAL EQUALIZER EQ-2131/2231/2215 www.inter-m.com MADE IN KOREA 2003.6 9017100400...
  • Page 2: Table Of Contents

    • Frequency Response....................20Hz~20kHz (±1dB) • Signal to Noise Ratio ......................Better than 85dB • Equalizer Level .............................+6dB • Equalizer Frequency EQ-2131/2231 ...........1/3 Octave ISO (International-Standard-Organization) centers EQ-2215 .........................2/3 Octave ISO centers • High Pass Filter ........................80Hz (18dB/oct) • Cut Only Mode......................-12dB or -24dB±3dB GENERAL •...
  • Page 3: Electrical Parts List

    Value Ref No. Part No. Description Value MAIN B’D (4003480400) TERMINAL 4465998210 TERMINAL(250)PCB TAB 250T R146-147 C358-359 EQ-2131 TERMINAL 4235007210 GND TERMINAL (POWER B’D) R157-159 R513 C361-362 C208-211 3408210261 CAP RSG 1000UF 35V SNAP 16 P 1000/35 R521 R546-547 C301-302 3639334111-T CAP ECQ-V 1H334JL2 0.33UF 50V...
  • Page 4 Ref No. Part No. Description Value Ref No. Part No. Description Value Ref No. Part No. Description Value Ref No. Part No. Description Value C303 C306 C309 3409210141-T CAP AF RSG 100UF 25V 6 P 100/25 C613-614 R636 R640 R644 C301-302 3639334111-T CAP ECQ-V 1H334JL2 0.33UF 50V 0.33/50...
  • Page 5: Top And Bottom View Of P.c Board

    TOP AND BOTTOM VIEW OF P.C BOARD Ref No. Part No. Description Value ASS’Y EQ-2131/EQ-2231/EQ-2215 EQ-2131/2231/2215 4448997310 AC INLET PA-9200RC AC INLET 4648097210 JW-S11RKKR ROCKERS RED POWER SW 4355891914 CON ASS’Y 2P MX-200 ASS’Y 2P 4355470614 CON ASS’Y 2P(300MM) ASS’Y 2P...
  • Page 7: Wiring Diagram

    WIRING DIAGRAM – EQ-2131...
  • Page 8 – EQ-2231 – EQ-2215...
  • Page 9: Block Diagram

    BLOCK DIAGRAM – EQ-2131 – EQ-2231...
  • Page 10 – EQ-2215...
  • Page 11: Schematic Diagram 17

    SCHEMATIC DIAGRAM – EQ-2131...
  • Page 12 – EQ-2231...
  • Page 13 – EQ-2231...
  • Page 14 – EQ-2215...
  • Page 15 – EQ-2215...
  • Page 16: Exploded View Of Cabinet & Chassis / Mechanical Parts List 27

    EXPLODED VIEW OF CABINET & CHASSIS / MECHANICAL PARTS LIST – EQ-2131 SCREW 3BTC4X6B 810934 0063 SCREW PM2x6Y 801912 0061 SCREW BM 3X20B 800913 0203 ASS'Y SCREW PM 4X8N 809599 4710 SCREW #2BTC 3X8B 810923 0083 SCREW BM3x6NI 800913 0063...
  • Page 17 – EQ-2231 SCREW 3BTC4X6B 810934 0063 SCREW PM2x6Y 801912 0061 SCREW 3BTC 4X8B 810934 0083 ASS'Y SCREW PM 4X8N 809599 4710 SCREW #2BTC 3X8B 810923 0083 SCREW BM3x6NI 800913 0063 SCREW #3BTC3x6B 810933 0063 SCREW PM2x3Y 801912 0031 SCREW FM2x8B 802912 0083 SCREW FM3x8B 802913 0083...
  • Page 18 – EQ-2215 SCREW 3BTC4X6B 810934 0063 SCREW PM2x6Y 801912 0061 SCREW BM 3X20B 800913 0203 ASS'Y SCREW PM 4X8N 809599 4710 SCREW #2BTC 3X8B 810923 0083 SCREW BM3x6NI 800913 0063 SCREW #3BTC3x6B 810933 0063 SCREW PM2x3Y 801912 0031 SCREW FM2x8B 802912 0083 SCREW FM3x8B 802913 0083...
  • Page 19: Ass'y Drawing 33

    NO USER SERVICEABLE PARTS INSIDE. AC INPUT BALANCED 75Ω REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. BALANCED 230V, 50Hz MODEL NO. EQ-2131 4dBu UNITY GAIN 10KΩ, 4dBu AVIS; RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR. SINGLE 31-BAND UNITY GAIN GRAPHIC EQUALIZER BALANCED 75Ω...
  • Page 20 BALANCED 75Ω BALANCED 75Ω BALANCED BALANCED CONSTANT Q 4dBu UNITY GAIN 4dBu UNITY GAIN 10KΩ, 4dBu 10KΩ, 4dBu ASSEMBLED IN CHINA www.inter-m.com CHANNEL B CHANNEL A CHANNEL B CHANNEL A Description Part No Q'ty Remark 4648097810 POWER SWITCH PUSH KNOB...
  • Page 21 BALANCED 75Ω BALANCED 75Ω BALANCED BALANCED CONSTANT Q 4dBu UNITY GAIN 4dBu UNITY GAIN 10KΩ, 4dBu 10KΩ, 4dBu ASSEMBLED IN CHINA www.inter-m.com CHANNEL B CHANNEL A CHANNEL B CHANNEL A Description Part No Q'ty Remark POWER SWITCH 4648097810 PUSH KNOB...
  • Page 22 NOTE...

This manual is also suitable for:

Eq-2231Eq-2215