File name InterM-MEQ2000 equal.pdfwww.inter-m.com
MADE IN KOREA
2003.1 9017100200
SERVICE
MANUAL
2 4 / 9 6 M U L T I M O D E
EQUALIZER
MEQ-2000
CONTENTS
Electrical Adjustment Procedure 1
Micom Data 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
13, 14
Specifications 15, 16, 17, 18
Electrical Parts List 19, 20, 21
Top and Bottom View of P.C. Board 22, 23, 24, 25, 26
Wiring Diagram 27
Block Diagram 28
Schematic Diagram 29, 30, 31, 32, 33, 34, 35, 36, 37,
38, 39, 40, 41, 42, 43, 44, 45, 46,
47, 48, 49, 50, 51, 52, 53, 54
Exploded View of Cabinet & Chassis / Mechanical Parts List 55, 56
Ass'y Drawing 57, 58
ELECTRICAL ADJUSTMENT PROCEDURE
1. ANALOG INPUT GAIN ADJUSTING
1) First, Connect Analog XLR input and Digital XLR output to test equipment (Inter-M use Audio Precision
System II Cascade , It support the AES3 in/out)
2) Put the Analog Input Potentiometer (Left below in Front Panel) to Max.
3) Analog input Level of the each channel is -20dBu,
And Adjust the P3 and P4 to Digital Output Level of the each channel is -20.5dBFS.
When you adjust this potentiometer, Tolerance is +/- 0.1 dBFS.
2. ANALOG OUTPUT GAIN ADJUSTING
1) First, Connect Analog XLR Output and Digital XLR input to test equipment.(Inter-M use Audio Precision
System II Cascade, It support the AES3 in/out)
2) Digital input Level of the each channel is -3dBFS,
And Adjust the P1 and P2 to Analog Output Level of the each channel is 21dBu.
3. ANALOG OUTPUT CMRR ADJUSTING
1) First, Connect the special cable for CMRR adjusting to Analog XLR Output.
The special CMRR adjusting cable is made with 300 ohm resistor that of tolerance is 0.01%.(+/- 0.03ohm)
2) Digital input Level of each channel is -3dBFS,
And, Adjust the P5 and P6 to Analog Output Level is below -35dBu.
1
MICOM DATA
ADSP-21065L DSP MICROCOMPUTER
SUMMARY
High Performance Signal Computer for Communications, Audio, Automotive, Instrumentation and
Industrial Applications
Super Harvard Architecture Computer (SHARCŪ)
Four Independent Buses for Dual Data, Instruction, and I/O Fetch on a Single Cycle
32-Bit Fixed-Point Arithmetic; 32-Bit and 40-Bit Floating-Point Arithmetic
544 Kbits On-Chip SRAM Memory and Integrated I/O Peripheral
I2S Support, for Eight Simultaneous Receive and Transmit Channels
KEY FEATURES
66 MIPS, 198 MFLOPS Peak, 132 MFLOPS Sustained Perfo