Hammond X-5 User Manual

5
5
Ej
r
U
jU
r
U
r
U
S
p
.L-u
S
5
JU
!WM
|t)ll Offil 1DI3CH4I
IDI5D16,
IDI7DI8! IDI9Q20I
!rj2lD22; ID23~.^ !d25-__'
1
029 306-01017
1S2473
H
QB 305-03002
2SC828Q UR 305-03040
2SC9450
305-03023
2SCI00QGR
319^23001
pPCl
51
A
HERWISE SPECIFIED;
ORS
ARE IN
OHMS
±
5
5<
1/4
WATT
™ASS
N
NSK
D
T
s
E
:
ll i:S«'&
F
™"
GH
"'
rm
USE0
™™*«-
L DENOTES
SAME
CIRCUIT.
SB-5(B) 223-17311
PEDAL BOARD
This board
provides the 13 Pedal
{Bass) Notes
Signals with
sustain {String
Bass) or without
Sustain.
The clocks
from
DV-4{B) Generator Board
are
input on terminals
T10, T12,
T14
T16, T18.
T20,
T22, T24, T26,
T28, T30,
T32. and T34. The
Pedal
Keys are
connected
on the terminals
T9,
T11, T13,
T15,T17,T19,
T21, T23,
T25, T27, T29,
T31.T33,
and T35 The terminal
T35 is for common key.
This Pedal
Keyer assembly is wired with
High Note
Select; and
1 contact
of
key connected
to common.
This
section is illustrated
by only
one note, the
other notes
are all as same. If
Pedal key
is depressed,
the
terminal
T9
is
connected
to the common
T35,
and the
capacitor
CI is charged
up through resistor
R27. The
current through
R27 switches
transistors
Q1
and
Q2
to turned
on, and discharges
all
capabilities
of capacitors
through diode,
Dl, D3,
-
and
D25, before the
capacitor CI
will be charged
up.
This
envelope of the discharging
capacitors through
1
and
R33 or
R33 and R31 added
through String
Bass
Tabs in Lower right-hand
End Block
provides
the envelope
of the sustain.
The
clock is gated
by D2, and amplified
by Q4 and
l.C.
1,
and this
signal is
divided by flip-flop
of Q5
and
0.6; But if the
T7 and
T8 are not connected
through Pedal
Tab
8716',
the flip-flop
is not
operated. These amplified
and divided
signals are
gated
on D28 and
D29 by the
D.C.
voltages
amplified
by Q3. The decay
time
of
the Sustain
envelope
is controled
by VR2.
Next, those
gated signals are amplified
by
Q7,
filtered, and
output to Pedal
Tone Bar on Terminal
T2, and its
output level is controled
by VR1.
FIGURE
3-7
SB-5(B) (223-17311)
PEDAL
BOARD
LAYOUT
& THEORY

Hammond X-5 Specifications

General

Brand	Hammond
Model	X-5
Category	Musical Instrument
Language	English