Electro harmonix 16 second analog delay schematic

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Name: 16 Second Digital Delay Nbrmbduer/ Dsig'ier. E1ectr0»Harmonix Revision: 12/9/95 Model # EH7875-2A
+12v
XAOl4O ® HOV
R ?
7812
- +
W 7: . 7:
/\100Ut 10uf /\ (2)
Red R 35V
120V ; +5v
White 100uf __+ 33uf __+ __+ ?A
100V 35v /\ /\ 5_lv /\ 33ut
01 47 10k 11h
Y 7815 F E -15v Click
Black FD Select
V +5v U :
- + L 7805 ®
+ + + v- »
Y 473315;: THOUf lOuf /: '- B D
10v '
V .
+5v D Res1stors marked # are 1% types.
ICIO » LM358
# 1k87 IC12 » unmarked, CD4049 perhaps?
+12v to pin 8 on 1C1, 1C2, 1C4, 1C5, 1C6,
Foot SCK A2 :IIISEICI 1, IC43, & IC44 pin 13 on 1C9,
Switch +5v w
37 +10v to pin 5 on 1C7, & 1C8
V +5v to pin 20 on the ADC0804 a pin #1
0211 20 4 3 coudnt read on IC12 pin 14 on IC13,
Bypass 1C 1 Ob , 7 6 111:6 clk WI rd IC14, & IC21 through 1c24 pin 16 on
* + CS IC15 through IC18 pin 3 on IC19 pin
Reciac luf;: D-gndlo 8 0n ICZO, & IC3O through IC41 pin 20
9
+5v mm ADC0804 on 1C27, & IC42 pin 5 0n IC28 pin 12 on
Rev 5 7 _ A gnd IC29, & 1C3 pin 7 on IC44 pin 9 on IC19
/ E m/angb -15v to pin 4 on 1C1 through 1C4, IC10,
/, .
Slow : 11 12 13 IC11, Iczo, IC43, &1c44 pin 17

3k74

R0

Em

680 IC12a
3
7

Fls® g 22ufj:
l

22uf

:
IC12b

on IC42
-10v to pins 1 & 6 on 1C7, & 1C8

REC

A11 diodes were unmarked.

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