Control PCB Replacement
112020PCR
112020PCRPM Rev0
(OsmoPRO Service Manual)
Page 1 of 2
Reference: Use this instruction with replace-
ment part 112020PCR, and the
General Disassembly
Instructions (112202PM).
Tools Required: Phillips Screwdrivers
(No. 1 & No. 2)
5/16” Nut Driver
Static Grounding Wrist
Strap
Warning-Hazardous Voltage
CAUTION: A discharge of static
electricity from contact with the
human body or other conductor may
damage system boards or static sensi-
tive devices. NEVER UNPACK,
TOUCH OR HANDLE ANY PCB
WITHOUT WEARING A
GROUNDING (EARTHING)
STRAP TO MINIMIZE YOUR
STATIC DISCHARGE.
Instruction:
1. Disassemble the instrument by perform-
ing steps one through four of the General
Disassembly Instructions.
2. Remove the Cable Clamp that secures the
C10 Sample Probe Cable and the C11
Block Probe Cable to the side of the
Power Supply & Controls Assembly
(
Figure 1).
3. Unplug the C3 Connector from the
Control PCB. Remove the screw that
attaches the C3G Ring Terminal to the
side of the Power Supply & Controls
Assembly (
Figure 2).
For additional information or technical assistance, please
contact Advanced Instruments Hot-Line
TM
Service Center
(U.S. 1-800-225-4034, outside North America +US 1-781-
320-9000).
Figure 1
Figure 2
Screw
4. Unplug the following Connectors from
the Control PCB: C1, C2, C5, C6,
C10 & C11.
5. Remove the six screws that mount the
Control PCB to the Power Supply &
Controls Assembly..
6. Carefully, lift up the Control PCB and
unplug the C12 Connector from the
bottom of it (
Figure 3).
C3G Ring
Terminal
Cable Clamp
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