Mar.2003 fig.5 Nothing will appear in the display if the right channel’s FS-5U is pressed before the one connected to the left channel. 3. VR, Encoder Check • Set the MODE control to “TWIST.” “2” appears in the LCD. • Input a sine wave (200 Hz, 16Vp-p) from the oscillator to INPUT A(MONO) and B. • Connect the oscilloscope to OUTPUT A(MONO) and B. • Rotate the E.LEVEL volume from the far left (minimum) to far right (maximum). Confirm that the LCD changes from “O” to “127” and that the waveform output from OUTPUT A(MONO) and B changes from minimum to maximum size. • Rotate the F.BACK volume from the far left (minimum) to far right (maximum).
Confirm that the LCD changes from “O” to “127” and that the waveform output from OUTPUT A(MONO) and B changes from minimum to maximum size. • Rotate the TONE volume from the far left (minimum) to far right (maximum). Confirm that the LCD changes from “O” to “127” and that the waveform output from OUTPUT A(MONO) and B changes from minimum to maximum size. (200 mV/DIV, 1 mS/DIV) • Rotate ENC at least two clicks from the far right position. Confirm that “E-” appears in the LCD. • Connect the oscilloscope to OUTPUT A(MONO), and disconnect the cable from the OUTPUT B jack. • Rotate ENC at least two clicks from the far left position. Confirm that “E-- ” appears in the LCD.
• Confirm that the waveform output from OUTPUT A matches the figure below. • Press the ENC switch. Confirm that “E-O-” appears in the LCD. fig.6 4. DAC, PHONES Check (includes OUTPUT A (MONO), B jack detection check) • Set the MODE control to “WARP.” “3” appears in the LCD. • Connect the oscilloscope to OUTPUT A(MONO) and B. • Confirm that the waveform output from OUTPUT A(MONO) and B matches the figure below. fig.4 (200 mV/DIV, 1 mS/DIV) • Connect the cables to the OUTPUT A(MONO) and B jacks. • Connect the oscilloscope to PHONES L/R. • Confirm that the waveform output from PHONES L/R matches the figure below.
(200 mV/DIV, 1 mS/DIV) • Disconnect the cable from the OUTPUT A(MONO) jack, leaving the oscilloscope connected only to OUTPUT B. • Confirm that the waveform output from OUTPUT B matches the figure below. 18