Grace Digital M201 - Manual (Page 13)

<figure 3 - A/D sensitivity trim pot locations>
84
C
-15VA
U9
C40
P4
�
��
�
�
�
�
�
�
�
�
C42 74
C
54
C
73
R
24
R
C46
+6.5V
TP5 TP6
+3.3V
14
R
45
C
34
R
44
R
P5
R31
43
R
2
V
E
R
63
1T
A
53
R
R38
K2
K3
Q1 C10
K1
P1
FD1
C13
J2
U4
C20
R9
TP1
+15VA
+18V
TP2
1ni
P
J5
C29
P3
U11
03
C
J4
-18V
TP3 TP4
D1
D2
R10
R16
U5
Q2 R13
41
R D3
D4
1
51
R
C21
R19
C31
8
D
82
R
R29 K7
4
Q
C36
K4
K5
K6
C6
P2
C4
D5
D6
Q3
C11 C15
C14
R12
R11
21
C
U3
D7
C17
R22
R26 R23
62
C
C25
C32
42
CC27
C41
R32
34
C
05
C
01
U
61
U
51
U
R39 15
C
P6
A VR3
B VR4
VR2 A
VR1 B 3362 1 3 3362 1 3
3362 1 3 3362 1 3
FRONT PANEL
CH2 (B): VR4
CH2 (A): VR3 CH1 (B): VR1
CH1 (A): VR2
grace design m201
owner’s manual
13
10) Once all desired calibration adjustments have been made, press and hold the
INPUT SENS button for approximately 3 seconds. This will exit CAL mode and re-
turn the A/D to normal operation. The new settings are now stored until future
changes are made.
11) Power down the unit, disconnect the AC power and reinstall the top cover.