LEXICON LXP 1 MANUAL PDF

LXP -1 Owner’s Manual. 1. Installing the LXP Specifications. The following specifications are subject to change without notice. Frequency Response. View and Download LEXICON LXP-1 owner’s manual online. Multi-effect processing module. LXP-1 Recording Equipment pdf manual download. Lexicon LXP-1 Pdf User Manuals. View online or download Lexicon LXP-1 Owner’s Manual, Manual.

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IUF X77 C26 0.

A Control Knob Input Level: If noiseispresentonbothwetanddry signalscheckthesupplyrails and trace the audio signal through the analog manuzl.

With W3 installed, received data is sent back out through inverter to current loop driver Q3. A lkHzdB audio signal can be applied to inputs, and the signal can be traced into and out of the converter.

U27 outputs are applied to one end of one of the ganged linear 50k ohm pots R An R-C circuit provides a delay in the removal of Reset during power up to allow regulated supply levels to stabilize before enabling the processor circuitry.

When pressed, a low state is produced on pin 11 of U7. Swap right and left channel audio connections and repeat steps 1.

LEXICON LXP-1 Manuals

C Control Knob Input Level: Inputs are Maunal isolated by lOuF non-polarized coupling capacitors. This determines if the current DAC output is equal to the sampled input, if not, a new data value is latched out to the DAC for comparison.

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Ql, which is driven by U1 pin 6 output, is the R-C delay circuit driver. To prepare the LXP-1 for this test, perform the the following: Apply a 1 kHz signal at dBV 56mVrms to right channel input.

Under normal conditions the LXP-1 requires minimal maintenance. If the two differ, a failure will result, indicating that a RAM storage failure may have occurred. CW refers to a clockwise knob setting and CCW refers to a counter-clockwise setting.

LEXICON LXP-1 OWNER’S MANUAL Pdf Download.

FB3 and Cl 1 provide filtering from noise spikes emanating from the AC line. If the test does not succeed when repeated, there may be a RAM hardware malfunc- tion. Measure output level on right channel output.

A full description and timing diagram of DAC control circuitry is explained in the Lexichip section of this lx.

Avoid using abrasive materials such as steel wool or metal polish. DAC output is compared to analog input by the comparator. This allows both outputs to be present when only one LXP-1 output is used by summing left and right singlas together.

LEXICON LXP-1 Owner’s Manual

A voltage divider circuit incorporating CR4, R13 and Rll, divides down the unregulated supply level to be used as a monitor voltage on the Schmidt manhal input ofUl pin 5. The last operation is maanual storage of zeros in all locations. Two discrete FET transistors, Q6 and Q7 provide an output muting function by shorting U26 outputs to ground after the ohm resistors in series with the outputs. The two outputs from R39 are applied to the ganged output level pot R Generally, the test action is performed once and the results are displayed immediately.

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The front panel push button and Program select switch are exercised thoughout the diagnostic testing. Faulty DRAM can cause data errors in the effects processing circuitry.

Full text of “Lexicon: lexicon lxp 1 sm”

The user control varies the wiper position of R39 in order to control the percentage of Wet processed and Dry unprocessed signals on LXP-1 outputs. Calculates the ROM checksum and compares it to the stored value.

IUF C59 4 O. Move internal jumper location at W3 to W2.