User`s manual

6. Technical Specifications
6.1 Block Diagram
1
2
3
4
A B C
D
4
3
2
1
D
C
B
A
POWER SUPPLY
VOLTAGE REGULATOR
AC 9V
INPUT
+5V
-5V
Verb BLOCK DIAGRAM
MEMORY(DRAM)
(U10,U11)
DSP
ED0-ED7
EA0-EA9
AD0-AD7
MPU
(U9 P87C54UBAA)
PROGRAM
SO0
SI0
OUTPUT L
FOOT
SWITCH
INPUT R
INPUT L
(MONO INPUT)
PJ1 PJ2 PJ5
PJ3 PJ4
VARIATIONS
ENCODER A
STEREO AUDIO CODEC
(U6 PCM3001E)
A/D and D/A CONVERTER
INPUT BUFFER & AMPLIFIER
OUT-R
OUT-L
INPUT LEVEL
OUTPUT AMPLIFIER
OUTPUT LEVEL
MIX CONTROL
LRCKIN=43.20KHZ
BCK=1.
3
82MHZ
(U8 TMS57002DPHA)
FOOTSWITCH
CONTROL
ENCODER A
Q1
11.0592MHZ
11.0592MHZ
CLOCK DIVIDE
(U7 74HC393)
IN-R IN-L
INPUT LEVEL
OUTPUT LEVEL
OUTPUT R
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