Thermo 49i - Connection Diagrams

Troubleshooting
Board-Level Connection Diagrams
5-6 Model 49i Primary Standard Instruction Manual Thermo Fisher Scientific
Board-Level
Connection Diagrams
Figure 5-1 and Figure 5-2 are board-level connection diagrams for the
common electronics and measurement system. These illustrations can be
used along with the connector pin descriptions in Table 5-3 through
Table 5-9 to troubleshoot board-level faults.
Figure 5-1. Board-Level Connection Diagram - Common Electronics
2 Pin
J3
DIGITAL
OUTPUTS
24VDC
POWER SUPPLY
MOTHER BOARD
DI GITAL OUT P UT
BOARD
I/O EXPANSI ON
BOARD
J14
J3
FRONT
PA NEL
BOARD
J1
LCD
DISPLAY
KEY PANEL
J18
J2
J4
J3
J1
J10
J17
PJ1 PJ3 PJ2
FRONT PANEL
POWER SW
14 Pin
3Pin
8 Pin
34 Pin
3 Pin
2 Pin
3 Pin3 Pin
3 Pin
J1
3 Pin
J4
3 Pin
8 Pin
11 Pin
2 Pin
EXPANSION RS485
ANALOG OUTPUTS
/DIGITAL INPUTS
P1:A
P1:B
RS232/RS485
J210-BASE-T
J15
J5
15 Pin
8 Pin
37 Pin
9 Pin
9 Pin
RS232/RS485
J1
EXPANSION I/O
J2
25 Pin
37 Pin
AC
AC
REAR PANEL
AC INPUT
3 Cond
AC
POWER_GOOD
24VDC
TRANSFORM ER
(90VAC or 240VAC
OPT I ONS)
J4
8 Pin
SPARE DATA
DATA
TO MEASUREMENT SYSTEM