Sequential Circuits Prophet-5 Service Manual - Audiofanzine

4-1 OSCILLATOR A TEST:STtP MODULE CONTROL SETTING NORMAL INDICATIONS/COMMENTS1PRGMRPRSTTUNEOFFONSET CONTROLS ACCORDING TO FIGURE 4-1.WHEN DONE, PLAY HIGHEST KEY (C5) AND REMEMBERPITCH,OSC A FREQ 10OSC A FREQ 0-10OSC AOSC BSYNCKBDONON7 OSCA FREQ 0-10 SYNC FUNCTION8 OSCA FREQ 4 NORMAL KEYBOHOLD SECOND C (CI) FROM BOTTOM (CO). SAME PITCHAS STEP 2.PITCH ADJUSTS IN SEMITONES OVER 4-OCTAVE RANGE.CHECK THAT EACH OSC PLAYS IN TUNE OVER FULL9-OCTAVE RANGE.—, -»^.wm .* « 4 4 f^a ft «tt ft^rq*D D D:^-: -.fj-- . A A n:*:• n D:*-: D D D D Dm^J HCHLfllD* ' "%•#: I n :;• n- * * * * • ^ A n:.p) >:• D Q D4*44- 1-^ -«-P4- ...^- ^- * * - ' . * * •11^ '4l[B'1'^1< * # P * - - * *•;%; •.^; '.^;-»» ,*, -*i 4**4tlA«ft auA*^ hrtf«i« •ffti'ti^ ^"^-^h\'Wft«»ftftf«4 tM^IftD n D [vn D11IDDDDDDD*i44«tCftBBfVTl .vD D D* • « ^ ft 4*4^^^ '^^ ^J^:4 * i1:9 OSCB KBD OFF10 OSCA SYNC OFF11 OSCA SAW OFF12 OSCA PULSE ON13OSCAPW 0-10PULSE DEGENERATES NEAR SAME EXTREME KNOBSETTINGS FOR ALL VOICES.Figure 4-1OSC A TEST PATCHRELATED TRIMS: 4-14DAC GAIN, ADC GAIN, SEQ INTERFACE4-16 VCO SCALE