Vox Valveronix ToneLab LE Service Manual page 16

Audio Check MODE (External check 8)
This is the bypass mode which the signal of input is sent to the output (including HEAD PHONES,
S/P DIF).
The step is changed by CH3 and CH4. The signal route and the circuit setting are different by the
step.
STEP BANK LED LCD
1 "b1" D R-LR
2 "b2" D S R-LR
3 "b3" D LR-LR
4 "b4" A CLS A
5 "b5" A CLS AB
6 "b6" A AB FBK
7 "b7" A AB RES
Routing
(DSP Mode, Return, Level L->L, R->L, L->R, R->R)
For Output circuit check(Digital Thru, Return=Off, 0,1,0,1 )
(L)=> D/A=> L OUT
NORM CH(R)=> A/D=> DSP(R)=> D/A=> R OUT
For RETURN circuit check ( Digital Thru, Return=ON, 0,1,0,1 )
NORM CH(R)=> SEND => RETURN => A/D=> DSP1(R)=> D/A=> R OUT
For Input circuit check (Digital Thru, Return=Off, 1,0,0,1 )
GAIN CH(L)=> A/D=> DSP(L)=> D/A=> L OUT
NORM CH(R)=> A/D=> DSP(R)=> D/A=> R OUT
For vacuum tube circuit check (Analog Thru, Return=Off, 0,1,0,1)
(Class A, FeedBack=off, Resonance=off)
(L)=> D/A=> TUBE=> A/D=> DSP=> D/A=> L OUT
NORM CH(R)=> A/D=> DSP(R)=> D/A=> THRU=> A/D=> DSP=> D/A=> R OUT
For vacuum tube circuit check (Analog Thru, Return=Off, 0,1,0,1)
(Class AB, FeedBack=off, Resonance=off)
(L)=> D/A=> TUBE=> A/D=> DSP=> D/A=> L OUT
NORM CH(R)=> A/D=> DSP(R)=> D/A=> THRU=> A/D=> DSP=> D/A=> R OUT
For vacuum tube circuit check (Analog Thru, Return=Off, 0,1,0,1)
(Class AB, FeedBack=on, Resonance=off)
(L)=> D/A=> TUBE=> A/D=> DSP=> D/A=> L OUT
NORM CH(R)=> A/D=> DSP(R)=> D/A=> THRU=> A/D=> DSP=> D/A=> R OUT
For vacuum tube circuit check (Analog Thru, Return=Off, 0,1,0,1)
(Class AB, FeedBack=on, Resonance=on)
(L)=> D/A=> TUBE=> A/D=> DSP=> D/A=> L OUT
NORM CH(R)=> A/D=> DSP(R)=> D/A=> THRU=> A/D=> DSP=> D/A=> R OUT
(L)=> D/A=> L OUT