File name DIGIMAXMN.PDF5
4
3
2
1
D
D
J2 XLR FEMALE J1 PHONO
2 5 4 1 3 6 1 2
R1 1M
1
2
J24 CON2 R2 619 D1 MMSZ5242 +16.5V 6 4 8 6 4 8 +12V1 11 13 11 13 1 R11 169 K1 TX2-12V 3 16 D4 MMBD914 R14 619 K2 TX2-12V 1 PHASE1 1 9 1 3 16 C6 47uF/63VZ D6 MMBD914 + R12 10K D5 MMSZ5242 +12V1 D3 MMSZ5242 C5 220pF 4 13 2 C3 47uF/63VZ + R3 10K D2 MMSZ5242 5 +16.5V R4 4.99K J22 CON2 1 2 R5 10 2 C1 100uF/25V R8 100 C2 100pF R9 100 EQ1A EQ1B C4 100pF
+48V
6 5 4 3 2 1 SW1 MTH-2U
R6 169
R7 6.81K/0.1%
R10 6.81K/0.1%
3
+ -
11 U1 SSM2017S
3 1
Q1A 2N5564/65/66 +16.5V R13 169 TP1 TESTPOINT 3 5 2 Q1B 2N5564/65/66 4 R21 121 1 R16 20K
4
C7 100uF/63V
7 15
9
+16.5V R15 301 4 + 11 1 U2A MC33079 0% 7 R17 1K R18 301K 5 6 + 11
-16.5V
7 U2B MC33079 0% 10 R19 1K
6
PAD1
C
TP2 TESTPOINT R22 10K
-16.5V 8 C9 0.47uF/25V
C
-16.5V RV1C B10K/C10K C10 0.47uF/25V R23 1K -16.5V -16.5V 11 9 11
VR1 LM317LZ
RV1D B10K/C10K 12 R24 1K R29 1M
RV2 100/10T ADJ VOUT 2 R25 243 +12V1 C11 10uF/25V 3
2
+16.5V
3
VIN
R26 10
C12 100uF/25V
9 10 R30 1M C13 0.47uF/25V
4
+16.5V +16.5V
J3 CON9 1 2 3 4 5 6 7 8 9 +16.5V PAD1 PHASE1
B
Presence
-16.5V -16.5V EQ1A C17 47pF -16.5V 11 R36 78.7K R32 100 C15 0.01uF 1 2 3 4 5 3 6 R35 200K RV1A B10K/C10K 1 0% R38 4.99K R42 3.32K C18 0.1uF C16 0.1uF R33 4.99K R34 4.99K 7 8 -16.5V 2 3 2 R39 1K R37 26.7K +16.5V -16.5V 4 U3B TL084 7 Q3 MMBT3904 3 2 1 R41 1M 3 -16.5V C20 47pF 11 +16.5V C21 0.1uF GND R46 150K -16.5V C33 47pF +16.5V C27 0.1uF C28 10uF/25V C29 0.1uF C30 10uF/25V C31 0.1uF C32 10uF/25V C22 10uF/25V C23 0.1uF C24 10uF/25V C25 0.1uF C26 10uF/25V +16.5V 11 R40 20K 1 U3A TL084 4 EQ1B
4
Positive Limit
SW2 SPUJ12L-2
Negative Limit
R43 10K
U3C TL084 4
11
R44 10K
-16.5V +16.5V R47 10K R45 2K 14 U3D TL084
1
A
ANTI-LOG Generator
4
5
4
-
+
+
-
6
8
-
+
5
+16.5V C19 0.1uF
9 10
2
Q2 MMBT3904
13 12
Title
DIGIMAX Microphone Pre-Amp Channel 1
Size C Date:
3 2
Document Number 400-DMAXMAIN Tuesday, August 22, 2000
1
+
+
-16.5V
14
-
R28 1.91K
8
11 13 12 R31 1M
U2C MC33079
R27 1M -
1
U2D MC33079
C14 0.47uF/25V
B
+
A
Rev A Sheet 1 of 9
5
4
3
2
1
D
D
J5 XLR FEMALE J4 PHONO
2 5 4 1 3 6 1 2
R48 1M
1
2
J25 CON2 R49 619 D7 MMSZ5242 +16.5V 6 4 8 6 4 8 +12V2 11 13 11 13 1 R58 169 K3 TX2-12V 3 16 D10 MMBD914 R61 619 K4 TX2-12V 1 PHASE2 1 9 1 3 16 C39 47uF/63VZ D12 MMBD914 + R59 10K D11 MMSZ5242 +12V2 D9 MMSZ5242 C38 220pF 4 13 2 C36 47uF/63VZ + R50 10K D8 MMSZ5242 5 +16.5V R51 4.99K J23 CON2 1 2 R52 10 2 C34 100uF/25V R55 100 C35 100pF R56 100 EQ2A EQ2B C37 100pF
+48V
6 5 4 3 2 1 SW3 MTH-2U
R53 169
R54 6.81K/0.1%
R57 6.81K/0.1%
3
+ -
11 U4 SSM2017S
3 1
Q4A 2N5564/65/66 +16.5V R60 169 TP3 TESTPOINT 3 5 2 Q4B 2N5564/65/66 4 R68 121 1 R63 20K
4
C40 100uF/63V
7 15
9
+16.5V R62 301 4 + 11 1 U5A MC33079 0% 7 R64 1K R65 301K 5 6 + 11
-16.5V
7 U5B MC33079 0% 10 R66 1K
6
PAD2
C
TP4 TESTPOINT R69 10K
-16.5V 8 C42 0.47uF/25V
C
-16.5V RV3C B10K/C10K C43 0.47uF/25V R70 1K -16.5V -16.5V 11 9 11
VR2 |