Kurzweil K250 - Page 137

4.33 - AMPLITUDE DAC TEST
The Amplitude DAC output waveforms should appear as shown
in figure 2 at each of the test points on the Channel board shown in
r
Table 4.
FIGURE 2: AMPLITUDE DAC OPAMP OUTPUT WAVEFORM
+-67 ms-+
TABLE 4: AMPLITUDE DAC OUTPUTS
U82
U82
U83
U83
U84
U84
U102
Ul02
Ul03
Ul03
U104
U104
PIN 7
CHANNEL 1
PIN 1
CHANNEL 2
PIN 7
CHANNEL 3
PIN 1 CHANNEL 4
PIN 7 CHANNEL 5
PIN 1 CHANNEL 6
PIN 7 CHANNEL 7
PIN 1 CHANNEL 8
PIN 7 CHANNEL 9
PIN 1 CHANNEL 10
PIN 7 CHANNEL 11
PIN 1
CHANNEL 12
Kurzwell 250 Service Manual, Chapter 4
4-67