16
EFX signal flow
DAMPING/DEPTH
TIME/RATE
EFX WIDE
EFX
L
R
EFX
EFX
TO MONITOR
EFX
TO MAIN
EFX BYPASS
EFX CLIP EFX RETURN L
EFX SEND
Off to +10dB
Off to +12dB
Off to +10dB
EFX RETURN R
EFX
FOOT
SWITCH
LEVEL
MON
EMAC
DSP
EFX RET L
EFX RET R
EFX WIDE
DAMPING/DEPTH
TIME/RATE
EFX
MON
MAIN
EFX
EFX
TO MONITOR
EFX
TO MAIN
EFX BYPASS
EFX CLIP
EFX RETURN
Off to +10dB
Off to +12dB
Off to +10dB
EFX
FOOT
SWITCH
LEVEL
EFX SEND
EMAC
DSP
Mono mixers
Stereo mixers
Rotary
Encoder = S1
Pot = R429
LED= D10
Pot = R463
Pot = R433
SW= SW5
LED= D11
SW= SW6
BLOCK DIAGRAMS
FRONT PANEL CONTROLS AND ADJUSTMENTS
Rotation of the encoder S1 will
vary the level of BIT 0 through
to BIT 3. This will select which
DSP algorithm is in effect on
the DSP IC U2.
The state of BANK also affects
DSP IC U2.
The adjustment of these two pots directly affects the CODEC IC U3.
Note that Parameter 1 = POT 1, Parameter 2 = POT 2 at connector J1.
NOTE: the following schematic pieces are all from the stereo mixer circuit board chapter 194, page 9, and
show what happens before and after the EFX board. See also EFX circuit board chapter 192.
EFX CONTROLS (ON THE MIXER BOARD)
