Roland SH-2000 - Adjusting VCF Scale Width

ADJUSTMENT AND CHECKING
NOV 10 1977 SH-2000
With C2 key down, adjust VR202 (VCF CUTOFF FREQ) so that
two peaks appear in one cycle.
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1 CYCLE
DEEPEST
7. ADJUSTING VCF SCALE WIDTH
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Setting: Tablet ...... Hold - on
Filter Manual - on
Panel ...... Resonance - 10
Cutoff Freq - 5
Modulation - 0
.Oscilloscope
Range: 0.2V, 0.1 ms/cm
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VR101 VR103 VR102
VCO TUN OFFSET WIDTH
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VC0-2
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VR207 VR203 VR205
VCF BALANCE VCF WIDTH DC BALANCE
VR201 VR204 VR202 VR206
NOISE RESONANCE
VCF CUTOFF VCA OFFSET
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VCF-2A
1) Depress F2 and F3 keys alternatively and adjust V R203 so that the frequency ratio is 1 : 2.
2) After adjustment of step ( 1), check to see that the frequency ratio of F 1: F2 and F3: F4 is also 1 : 2.
3)
After the ratios of F 1 : F2, F2: F3 and F3: F4 are adjusted to 1 : 2, repeat adjustment of section 6.
4) Then repeat adjustment
of Section 7.
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