Roland SH-2000 - Adjusting VCA Offset

ADJUSTMENT AND CHECKING
NOV 10 1977 SH-2000
VCF-2
VCF
OUT
OP-12 @@@)@)
8
I
VCAIN
GROUND
VA101 VR103 VR102
VCO TUN OFFSET WIDTH
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VC0-2
Oscilloscope Range:
0.02V /cm, 1 Oms/cm
+
VR207 VR203 VR205
VCF
BALANCE VCF WIDTH DC BALANCE
VR201 VR204 VR202 VR206
NOISE RESONANCE VCF CUTOFF VCA OFFSET
Adjust VR205 {DC Balance control) so that the amplitude is minimum.
4. ADJUSTING VCA OFFSET
Setting: Tablet ...... Popcorn - on
Panel ..... Random Note - off
Transpose - M
Oscilloscope Range:
0.2V /cm, 10ms/cm
Popcorn
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19
[OP-12 @@@)@)
VR101 VR103 VR102
VCO TUN OFFSET WIDTH
@)@)@)
VC0-2
While repetitively holding down C2 key, adjust VERT Gain so that
the maximum amplitude expands just over the entire graticule and
adjust
VR206 (VCF Offset) on VCF-2 board so that the waveform
disappears at 1
OOms.
VR207 VR203 VR205 1
VCF BALANCE VCF WIDTH DC BALANCE '
VR201 VR204 VR202 VA206
NOISE RESONANCE VCF CUTOFF VCA OFFSET
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VCF-2A
t-----1 oo ms.--_,
!@Roland