Hammond X-5 - Gate & Percussion Amp. Board

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PA-33(B}
219-04312
GATE &
PERCUSSION
AMP. BOARD
This
board
will be described in
three sections:
Section
1
will be
the
Gate
Amplifiers for Upper
Manual and Lower Manual.
Section
2
will be the
Voltage
controlled
amplifier
for
Percussion, and
Section 3
will be the repeat oscillator
for the
percussion.
1. The
signals is applied to J701 from Presets Tabs
in Lower left-hand End
Block. The signal of Upper
Manual, (included Percussion), comes pin 1 ofJ701,
and
the signal of Lower Manual comes pin 5
of
J701
.
These signals
are amplified by Q1, and 04, or Q2
and
Q5.
and these
amplified signals are normally
grounded by Q10 or 0.11, and then
if Manual Keys
will be downed,
through J7D3 or J704,
the
negative
D.C.
voltage is connected to UG point or
LG point, and Q1 or Q1 1 is
turned off. The signals