Hammond 340107 - Logic PWB Schematic

•
U4-000595
LOGI C P'vJB
SCHEr·1ATI C
. ,
20 I 340107 ?RELIMINA~Y
R30
10K
R29
10K
R28
47K
R25
220
• -24V
R27
22C)O(
R26
47K
QI3
R24
lOOK
CIO
.05
J05
I J693-15
~ G I C PWB 124 =5 - -- - - -- -- - - - - -- - -
I @
I
I
I
I
I
UM BUS ! J690- 5
- - .....::... --- - - J I ~ - - L '
I H
LOWER TO PEDAL
I
'ST
SI
S3
01
S5~
02
S7 4
03
04
IC2
S9~
SII 19
5
510
20
SOli
56 5
52
10
-14V~INH.
S8 16
BINARY TO I OF 12
DECODER
-104V
-14V +12 PHA5E
BINARY COUNTER
F 1
3
-24V
R23* (NOTE 6)
\Mr-- -23v
-I~V
-24V
CLOCK IN
T'",NG CHART
PHASE
B88
1010 1. 88
AI.
A
I
I
0 0
B 0
I
I 1
C
I I
I 0
0
0 0
I I
E
I I 0 I
F
I 0
I
I
094-0~~112
004520
004514
004071
004012
004012
004023
004069
004011
004011
004011
004001
078
075
075
078
075
075
075
075
075
075
075
ICI
IC2
IC3
IC4
IC5
IC6
IC7
ICe
ICB
ICIO
ICII
NOTES'
'-
ALL NPN TRANSISTOR 001-021314.
2. ALL PNP TRANSISTOR 00H122114.
3. ALL RESISTORS IN OH"S 15%, 1/2W
UNLESS OTHERWISE INDICATED.
4.
ALL CAPACITORS IN .. ICROFARADS
UNLESS OTHERWISE lNOICATED.
5. ALL DiODES 001-226080.
6. * DENOTES FIRE RETARDANT RESISTOR
SPACED 10
.... FRO" PWB.
1
QI3.14.1~.·00l-021134
PIN
-14v GND
e 16
12 24
7 14
7 14
7 14
7 14
7 14
7 14
7 14
7 14
7 14
VA
lOOK
RI
-14V 0 "'.......... ... , III III III , •
L--- -- -- -- -- --- --- --- - -
1-13
PH. E ON SUS 0----
(REPEAT/N) I
I
I
I
I
I
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