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Design Information And History
Section:
Product(s):
History.SchDoc
M2000
12
12
Sheet
Of
PCB#:
Rev#:
Modified:
V01P9
File:
2021-06-15
EXMMobile8
EML Rev#:
01
Tmp Rev:
V031
CHANGE HISTORY M2000V01P4
POTENTIOMETERS AND KNOBS
DESIGN HISTORY AND INFORMATION
"STYLE_P32"
P1
P2
P3
P4
.
4430
4430
4430
4434
4433
4434
4433
4433
4434
4434
3522
3439
.
.
.
.
.
.
.
.
.
.
.
LEVEL
REF
POT/SW YS#
FUNCTION
KNOB#
POTENTIOMETERS/SWITCHES AND KNOBS
SHAPE
REVERB
SHAPE
REVERB
LEVEL
SHAPE
MASTER
MIC/GUITAR
BT-PAIR
LEVEL
NOTCH
.
POWER
3522
P5
P6
P7
P8
P9
P10
S1
S2
S3
STYLE
P34
P34
P34
P32
P32
P32
P32
P32
P32
P32
.
.
.
"STYLE_P34"
CHANGE HISTORY M2000V01P3
JAN-25-2021 VERSION M2000V01P3 DESCRIPTION OF CHANGE
CHANNEL 1 SECTION
C2 AND C3 10U REPLACED WITH 1U
R1 AND R28 475K REPLACED WITH 2K0
R189 4K99 REPLACED WITH 15K0
CHANNEL 2 SECTION
C6 AND C7 10U REPLACED WITH 1U
R10 AND R14 475K REPLACED WITH 2K0
R215 3K32 REPLACED WITH 2K0
R228 15K0 REPLACED WITH 10K0
R288 4K99 REPLACED WITH 15K0
CHANNEL 3 SECTION
C16 PIN2 DISCONNECTED FROM J11:2 PIN RN CONNECTED TO W3A PIN 2.
C17 PIN2 DISCONNECTED FROM J11:2 PIN TN CONNECTED TO W3A PIN 3.
R227 4K99 AND C111 10U ADDED BETWEEN TO W3B:PIN 3 AND +Vr_.
POWER MANAGEMENT SECTION
R294 47K5 REPLACED WITH 200K0.
R51,R229 AND R320 100K0 REPLACED WITH TO 200K0.
D25 PMLL4148 ADDED IN PARALLEL TO R321.
R294 PIN2 AND C145 PIN1 DISCONNECTED FROM +VSw CONNECTED TO Q9 PIN3.
DIGITAL EFFECTS SECTION
R91AND R113 100K0 REPLACED WITH 475K.
D34 PMLL4148 ADDED IN PARALLEL TO R91.
BLUETOOTH SECTION
UNCONNECTED NODES AND VIAS REMOVED.
FEB-16-2021 VERSION M2000V01P4 DESCRIPTION OF CHANGE
CHANNEL 1 SECTION
R6 AND R7 VALUE CHANGE FROM 4K99 TO 1K02.
C139 AND C147 100N ADDED TO U28 PIN 5 AND PIN 3.
CHANNEL 2 SECTION
R11 AND R15 VALUE CHANGE FROM 4K99 TO 1K02.
C155 AND C157 100N ADDED TO U31 PIN 5 AND PIN 3.
C62 100N REPLACED WITH 47N / R215 2K0 REPLACED WITH 1K5 / R181 100K0 RELACED WITH 4K99.
C168 470N ADDED BETWEEN U32:2 AND S1:1 .
C162 470N ADDED BETWEEN U33:1 AND U32:2.
CHANNEL 3 SECTION
R269 4K99 AND C138 10U ADDED TO PIN6 OF U3:2 .
C138 PIN 2 CONNECTED TO DSP-MICROCONTROLER SECTION U35:1 PIN1.
MASTER SECTION
R258 AND R268 VALUE CHANGE FROM 100K0 TO 200K0.
BLUETOOTH SECTION
U12 PADS UPDATED
DSP-MICROCONTROLER SECTION
THE FOLLOWING COMPONENTS ARE ADDED TO U35:1
C117,C123 22U_C126 1N8_C134 220P_R230 2K49_R231 10K0 _R234,R240 3K92 _R248 20K5.
U36 PIN 46 CONNECTED TO C117 PIN 2 AND C33,D13 CONNECTED TO AGND.
C93 VALUE CHANGE FROM 10P TO 47P.
D18 AND D19 VALUE CHANGE FROM 7V5 TO 4V7.
R97 VALUE CHANGE FROM 10K0 TO 4K99.
R237 VALUE CHANGE FROM 1M0 TO 475K.
R270 100K0 ADDED BETWEEN D18 AND D19.
1/4 INCH HOLE ADDED TO #Z1819 HEATSPREADER FOR SNAP IN SPACER.
POWER MANAGEMENT SECTION
C161 470N ADDED IN PARALLEL R138.
BATTERY STATUS SECTION
R166 6K98 REPLACED WITH 2K49.
MARCH-9-2021 VERSION M2000V01P5 DESCRIPTION OF CHANGE
CHANNEL 2 SECTION
R228 10K0 REPLACED WITH 15K0.
CHANNEL 3 SECTION
P8 20K REPLACED WITH 50K .
8K25 RESISTOR ADDED BETWEEN PIN 1 AND PIN 2 OF P8.
DSP-MICROCONTROLER SECTION
Q12 OSCILLATOR REPLACED WITH 12.288MHZ CRYSTAL.
POWER MANAGEMENT SECTION
R320 200K REPLACED WITH 475K / D27 4V7 REPLACED WITH 7V5.
C107 100U REPLACED WITH 680U.
MARCH-15-2021 VERSION M2000V01P6 DESCRIPTION OF CHANGE
C2,C3,C6,C7 REPLACED WITH FOOTPRINT 4.3mm.
C76,C94,C102,C106,C108,C223,C238,C260 REPLACED WITH FOOTPRINT 0805_X7R.
HW3,HW4,HW5,HW6,HW7,HW8,HW11,HW12,HW17,HW18,HW19,HW20,HW21,HW22,HW23,
HW24,HW25 REPLACED WITH 128Mil HOLE DIAMETER.
MARCH-17-2021 VERSION M2000V01P7 DESCRIPTION OF CHANGE
W1 FOOTPRINT SIZE CHANGED TO 4.2mm*4.2mm.
MAY-5-2021 VERSION M2000V01P8 DESCRIPTION OF CHANGE
R269 AND R347 = 22K1
R271 = 3K32
R352 = 330R0
M2000V01P5
M2000V01P6
M2000V01P7
M2000V01P8
JUNE-15-2021 VERSION M2000V01P9 DESCRIPTION OF CHANGE
MONO CHANNEL1 SECTION
R272 AND R273 475K ADDED IN PARALLEL TO SG1 AND SG2
R274 200K0 ADDED BETWEEN C4 AND C5.
MONO CHANNEL2 SECTION
R275 AND R276 475K ADDED IN PARALLEL TO SG5 AND SG6
R277 200K0 ADDED BETWEEN C8 AND C9.
BATTERY STATUS SECTION
C171 100N ADDED BETWEEN R166 TO St_GND.
M2000V01P9
