Mod Verb Deluxe Troubleshooting Supplement

Use this troubleshooting supplement to help:

Measure DC voltage test points to identify major discrepancies and locate problem areas.
(Keep in mind that the voltage measurements will vary slightly from kit to kit. The voltages you measure should be in
the same ballpark, but do not expect to get the exact same value.)
Using a volt meter, connect the ground side lead of the meter to any ground point on the pedal.
One ground point would be the output jack's ground lug. The other volt meter lead will be used to
measure DC voltage at the test points shown below.

DC Voltage Test Points

9.1 VDC
A (Power Supply):
5.0 VDC
B (Vcc):
2.0 VDC
C (LED Anode):
6.1 VDC
D (Q1 Drain):
0.0 VDC
E (Q1 Gate):
0.7 VDC
F (Q1 Source):
8.3 VDC
G (Q2 Drain):
0.0 VDC
H (Q2 Gate):
0.9 VDC
I (Q2 Source):
5.0 VDC
J (BTDR Pin 1 - Vcc):
0.0 VDC
K (BTDR Pin 3 - Vin):
0.0 VDC
L (BTDR Pin 5 - Vout):
0.0 VDC
M (BTDR Pin 6 - Vout):
500KL
3
1
2
1
2
Q1
3
5102
2
G S
3M
Out
17
A B
RED
BLK
J
C
K
100KL
1
2
3
4
5
6
7
D
.02µ
M
L
Q2
6.8K
7.5K
5102
.1µ
G S D
15
13 11
1K
GROUND
TIP
56K
39K