© 2017 Sensata Technologies
Service Instructions: 64-1012 Rev A
1
MSH Control Board Removal and Replacement
1.0 Description
These instructions provide information on removing
the control board in a MSH Series inverter/
charger and replacing with a new control board
(PN: TCB-MSHXXXXM or PN: TCB-MSHXXXXRE).
Note:
This document is part of a series of service
instructions to help qualifi ed personnel replace components
that have failed or have been damaged.
2.0 Installation
Preparation
Before removing or replacing the control board, read this
entire document and follow all instructions.
2.1 Safety
Precautions
Follow all electrical safety precautions and the ESD
prevention guidelines below, and in
Service Instructions:
64-1000
–
Electrical Safety Precautions and Electrostatic
Discharge Prevention
.
Warning:
Hazardous voltages are present within
the inverter when power is applied. Do not remove
the inverter’s top cover without
fi
rst turning off
and disconnecting all AC and DC power to the
inverter. Always replace the top cover before
reconnecting power.
Warning:
The capacitors inside the inverter
store electric energy even after all AC and DC
power is removed. After disconnecting all AC
and DC power to the inverter, wait 5 minutes for
the energy in the capacitors to dissipate before
working on the unit.
Caution:
Observe all ESD safety precautions
while working with the control board and
within the inverter. Failure to follow ESD safety
precautions could result in damage to internal
components and the inverter.
2.2 Included
Materials
Before dismantling the inverter, inspect the new control
board to ensure there is no obvious physical damage.
Look at the Model ID label on the new control board (see
Figure 1) and verify that the model number on this label
corresponds to the model number of the inverter that is
being repaired. Contact Sensata Technologies if any item
appears to be damaged, missing or incorrect.
Note:
All removed items must be returned if repair is for
warranty consideration. Save the packing material and
shipping container to use when returning the removed
items.
2.3
Required Tools and Equipment
Before disassembling the inverter, ensure you have the
following tools and equipment to remove and replace the
control board:
• T15 Torx head screwdriver (
≥
6” shaft required)
– for #6-32 screws
• T25 Torx head screwdriver – for #10-32 screws
• 7/16” socket, socket wrench and
≥
6” extension
– for ¼-20 bolts
• Torque wrench (130 in-lbs torque required)
– for ¼-20 bolts with 7/16” head
• Phillips
screwdriver
Figure 1, MSH Series Control Board
www.SensataPower.com
a product
brand of:
4
"
MSH Series - Model ID Label
L-brackets:
location for
#6-32 screws (x2)