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Exactly what I needed to be able to bring the amp back to life... will come back to this site the next time I need schematics.
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Information was accurate and very helpful.
However the continuity made it a little difficult to follow from one page to the next.
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Very very good as usual very trustable site. Perfect!!!!!!
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The Service Manual received was helpful. Good copy of original document.. I recomend all of my friends about this technical page.
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Perfect, complete manual, exactly what I needed. Recommended to everyone.
ORIGINAL THRU Within this program, the incoming data is directly send to the outputs, without employing additional signal processing. Output is carried out in a 2 in 2 configuration, i. e. input 1 is assigned to the outputs 1 and 2, Input 2 is assigned to 3 and 4. The rotary encoder lets you control the level in the range between 0 to -99 dB.
SINE WAVE OUT This program tests the entire output signal path (DSP, D/A converters, output channels). After starting the program, a 1 kHz sine signal is generated in the DSP, which is output to all 4 channels. The default level setting is -24 dB. The rotary encoder lets you control the level in the range between 0 to -99 dB. PINK NOISE "Pink noise" is generated in the DSP, which then is output to all 4 channels. The default level setting is -24 dB. The rotary encoder allows controlling the level in the range between 0 and -99 dB. WHITE NOISE "White noise" is generated in the DSP, which then is output to all 4 channels. The default level setting is -24 dB. The rotary encoder allows controlling the level in the range between 0 and -99 dB. A/D GAIN CALIB This program serves for calibrating the gain-ranging AD-converters. The difference in the levels between high and low inputs at the ADC is automatically measured and stored. For automatic calibration, a sine signal with approx. 0dBu / 1kHz has to be fed to both inputs. Level differences are measured and displayed. Too high or too low signal levels are also indicated on the display. CAUTION: The use of this program should be left to the experienced and well-educated service technician. Inaccurate calibration can result in the degradation of the dynamic range or even in erroneous functioning of the appliance. A/D GAIN RNG 1 This program serves for precisely displaying and adjusting the level difference between the gainranging A/D converter's two channels of input 1. The value is indicated in dB and in hex-code. in the degradation of the dynamic range or even in erroneous functioning of the appliance. CAUTION: The use of this program should be left to the experienced and well-educated service technician. Inaccurate calibration can result in the degradation of the dynamic range or even in erroneous functioning of the appliance. A/D GAIN RNG 2 This program serves for precisely displaying and adjusting the level difference between the gainranging A/D converter's two channels of input 2. The value is indicated in dB and in hex-code. CAUTION: The use of this program should be left to the experienced and well-educated service technician. Inaccurate calibration can result in the degradation of the dynamic range or even in erroneous functioning of the appliance. INITIALIZE MEM This program erases all entries of the user preset memory U01 - U30 and re-sets the unit's programming to the initial state (as shipped). The initialize function is ended with a software reset. Upon re-start the appliance is set to the factory program F01. CAUTION: To prevent the total loss of user-defined data, previously backing-up the contents of the user preset memory, using the Dx 38 editor software, onto a PC or notebook computer is strongly recommended.
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