
6/17/2017
XKITZ XAMP-M2
3
Circuit Board Assembly
You're ready to begin assembling your XAMP-M2 circuit board. Assemble the board in the order listed in Table
1. The components for the standard kit (in bags marked ‘Bag A’ and ‘Bag B’) support the default configuration:
UNBALANCED signal mode. If you purchased the BALANCED signal mode upgrade, you will have an additional
bag labeled ‘Balanced Mode Upgrade’, which contains the components required to configure the XAMP-M2 to
support balanced input. Table 1 below lists the parts and assembly steps for the standard board. Table 2 has
the parts lists and specific instructions for the Balanced mode option. Use the install check boxes on the right
side to track your progress. The 'Install Notes' column will alert you to any special instructions (listed below) for
each of the components. We recommend reading and understanding all the design notes before you start your
assembly. The PCB has large, heavy metal planes, which makes de-soldering components extremely difficult.
Soldering a component in the wrong location may be a difficult mistake to recover from.
Table 1.
Circuit Board Parts List – Parts Used for All Configuration Options
Pack
√
Device
Value
Marking
Qty
Reference
Designators
Bag
Install
Notes
Install
√
CIRCUIT BOARD (PCB)
REV 5.1
XAMP-M2
1
RESISTOR
1K,1%
BRN-BLK-BLK-BRN-BRN
10
R1,R14,R15,
R16,R19,R25,
R27,R45,R50,
R62
A
RESISTOR
10K,1%
BRN-BLK-BLK-RED-BRN
6
R4,R7,R10,
R12,R49,R51
A
1
RESISTOR
20K,1%
RED-BLK-BLK-RED-BRN
3
R2,R11,R17
A
1
RESISTOR
10K,1%
BRN-BLK-BLK-RED-BRN
3
R21,R22,R23
A
2
RESISTOR
20K,1%
RED-BLK-BLK-RED-BRN
2
R20 ,R24
A
2
RESISTOR
4.7,1%
YEL-VIO-BLK-SLV-BRN
2
R3,R18
A
RESISTOR
10
BRN-BLK-BLK
1
R26
A
RESISTOR
15K,1%
BRN-GRN-BLK-RED-BRN
1
R28
A
RESISTOR
82.5K,1%
GRY-RED-GRN-ORA-BRN 1
R6
A
RESISTOR
100K,1%
BRN-BLK-BLK-ORA-BRN
1
R9
A
RESISTOR
200K,1%
RED-BLK-BLK-ORA-BRN
2
R5,R8
A
DIODE
1N5240
1N5240
1
D1
A
3
CAPACITOR
10pF
100
2
C11,C14
A
4
CAPACITOR
100pF
101
1
C59
A
4
CAPACITOR
.1uF
104
9
C2,C7,C9,
C10,C26,C27,
C28,C29,C32
A
4
CAPACITOR
.47uF
474
2
C30,C31
A
4
CAPACITOR
10uF
106
4
C12,C13,C18,
C21
A
4
CAPACITOR
.015uF, 5%
153 (Blue colored ones)
10
C49,C50,C51,
C52,C53,C54,
C55,C56,C57,
C58
A
4
CAPACITOR
BSC Configuration Cap:
One of: (See Table 3)
.022uF 223
.033uF 333
.047uF 473
1
C42
A
5
SOCKET – 8 PIN
1
U2
A
6
SOCKET – 14 PIN
2
U1,U3
A
6
OP AMP IC
TL072
TL072 (or OPA2227)
1
U2
A
7
OP AMP IC
TL074
TL074 (or OPA4227)
2
U1,U3
A
7
SOCKET – 20 PIN
1
XO MODULE
A
8
COMPONENT CARRIER – 20
PIN
1
XO MODULE
8
SPADE TERMINAL
6
SP1,SP2,SP3,
SP4,SP5, SP6
A
TRANSISTOR
2N3904
2N3904
2
Q1,Q3
A
9
VOLTAGE REGULATOR
LM317TG
LM317TG
1
U4
9
TRIMPOT
10K
R10K
3
VR1,
VR2,VR3
A
10
ELECTROLYTIC CAPACITOR
10uF
10uF
1
C5
A
11
ELECTROLYTIC CAPACITOR
22uF
22uF
3
C1,C6,C8
A
11
ELECTROLYTIC CAPACITOR
100uF
100uF
2
C25,C39
A
11
ELECTROLYTIC CAPACITOR
1000uF
1000uF
1
C3
B
11
ELECTROLYTIC CAPACITOR
3300uF
3300uF
2
C4,C24
B
11