Related Manuals for Martinsound Martech EMT 140
Summary of Contents for Martinsound Martech EMT 140
- Page 1 EMT 140 UPGRADE Installation Guide Martinsound, Inc. • 1151 West Valley Boulevard • Alhambra, California 91803-2493 TollFree 1.800.582.3555 • Tel +1.626.281.3555 • Fax +1.818.284.3092 www.martinsound.com...
-
Page 3: Pre-Installation Checks
EMT 140 is famous. Wide bandwidth pickups, spectacular dynamic range, and extremely low noise electronics eliminate the coloration, noise, and distortion of the original, but ultimate benefit of the Martech EMT 140 Upgrade is the holy grail of digital effects: the perfect plate reverb. - Page 4 • Screw the Martch Replacement Drive Coil unto the mounting screw. Martinsound has encountered some EMT units that use a non-standard thread size. A new screw is provided for if required. To avoid removing the Damper Plate to replace the screw, we have succeeded using the following technique: Tie polyester thread to the old screw and then push it out of the plate.
- Page 5 +2 dBu (0.975 V RMS) with no more than a few millivolts of DC offset. DO NOT PROCEED IF EXCESSIVE LEVEL OR DC OFFSET IS DETECTED! CONTACT MARTINSOUND FOR TECHNICAL SUPPORT It is important to check signal at the Drive Test BNC to verify that the power amplifier is functioning correctly.
-
Page 6: Final Alignment
Reconnect AC power. FINAL ALIGNMENT An LED level detector and a warble tone oscillator have been included in the Martech EMT 140 Upgrade to facilitate level calibration and performance verification. The level detector is a simple "voltmeter" which illuminates both LEDs whenever the signal source is within a 0.25dB of the optimized level. - Page 7 PRODUCT DESCRIPTION The Martech EMT 140 Upgrade is a complete electronics system for metal plate reverberation devices such as the EMT 140. The Upgrade consists of a main electronics package with input buffers, drive coil amplifier, and output line drivers, along with two new transducer pickups with preamps. Features include active balanced differential inputs and outputs, vastly improved headroom, lower noise and distortion, built-in level detection and test oscillator for calibration, and variable highpass filter with half octave steps.
-
Page 8: Servicing Notes
the chassis for two input and two output transformers. Winding ratios of 1:l provide the necessary isolation without any appreciable change in operating specifications. SERVICING NOTES Stable circuits allow operation without connection to the EMT plate, making bench servicing possible. POWER AMPLIFIER MODULE OR REGULATOR REPLACEMENT •... - Page 10 Martinsound, Inc. • 1151 West Valley Boulevard • Alhambra, California 91803-2493 TollFree 1.800.582.3555 • Tel +1.626.281.3555 • Fax +1.818.284.3092 www.martinsound.com...
Need help?
Do you have a question about the Martech EMT 140 and is the answer not in the manual?
Questions and answers