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IT MAY BE NECESSARY TO USE RCA EXTENSION CABLES IN ORDER TO LOCATE THE SEMOD CLOSE TO YOUR LISTENING AREA FOR EASE OF SETUP. AFTER SETUP, THE EXTENSION CABLES MAY BE REMOVED AND THE SEMOD MOUNTED NEAR YOUR POWER AMPLIFIERS. THE SEMOD NEEDS NO MAGNETIC SHIELDING SINCE THERE ARE NO TRANSFORMERS OR INDUCTORS. THE BASE PLATE MUST BE GROUNDED TO YOUR AMPLIFIER WITH A SMALL WIRE TO PREVENT HUM AND NOISE PICKUP. FOR HOME USE, THE PRE-AMP OR HEAD UNIT MUST BE GROUNDED TO THE POWER AMP(S.) THE POWER CONNECTOR IS CONNECTED AS FOLLOWS:
RED- + 12 VOLTS DC @ 250MA YELLOW- TRIGGER ( MAY BE CONNECTED TO RED FOR HOME USE) BLACK- GROUND MAKE SURE TRIGGER VOLTAGE IS 12VOLTS, IF NOT YOUR HEAD UNIT HAS INADEQUATE CURRENT. YOU MUST USE A RELAY !
1. SET INPUT GAIN POTS TO 1/2 ROTATION. 2. PLACE SET-UP TEMPLATE OVER PCB USING PINK NOISE SWITCH AS GUIDE. 3. SET ALL SLIDERS TO -24 DB / ALL THE WAY DOWN. 4. TURN "ON" THE PINK NOISE GENERATOR. 5. SET THE PINK NOISE LEVEL TO 1/2 WAY. THIS CAN BE RE SET AS NEEDED. 6. SLIDE EACH SLIDER ONE AT A TIME ALL THE WAY UP AND THEN BACK DOWN. DURING THIS TEST ONLY ONE SLIDER AT A TIME SHOULD BE UP. 7. IT SHOULD BE EASY TO FIND A FREQUENCY THAT IS QUIETER THAN THE
OTHERS. IF THIS SLIDER IS ON THE RIGHT CHANNEL, THIS IS THE LEVEL REFERENCE.
MAKE SURE VOLTAGE IS AT 12VDC OR MORE
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