Revision Description:
Request Number:
Issue Code(s):
Updated Information
DOC3934
CS, SP
Revision Date:
07/19/12
Document #:
Approved by:
520007100
DOC3934
Page:
5
of
5
Rev:
B
ENG-FRM-RIC-4.32, Rev. E
Technical Data Sheet
HBH 650
PROPRIETARY RIGHTS NOTICE This document and all information contained within it is the property of Hamilton Beach Brands, Inc. (HBB). It is confidential and
proprietary and has been provided to you for a limited purpose. It must be returned or destroyed upon request. Disclosure, reproduction or use of this document and
any information contained within it, in full or in part, for any purpose is forbidden without the prior written consent of HBB. No photographs may be taken of any article
fabricated or assembled from this document without the prior written consent of HBB.
Timer Board Removal and Replacement
-
Remove the knob from the stem of the timer switch.
-
Remove the upper housing (see
Housing Disassembly
above).
-
Disconnect the cables from the power board and PC board. Disconnecting
the ribbon cable is optional.
-
Remove the wire tie that secures the timer cable to the jar sensor cable.
-
Remove the hex nut from the front of the timer.
-
Remove the timer through the inside of the upper housing.
-
Re-assemble in reverse order. Secure the timer cable to the jar sensor
cable with a small wire tie.
Touch Pad Removal and Replacement
-
Remove the upper housing following the instructions in
Housing Disassembly
above.
-
Before proceeding, plug the new touch pad into the PC board and test the
new touch pad. With the old touch pad unplugged and the new touch pad
plugged into the PC board, position a magnet between the jar pad and the
upper housing, between the front and rear posts on the left side looking at the
unit, to simulate the jar being positioned. Verify the function of the new board.
If acceptable continue with touch pad removal and replacement.
-
Identify and disconnect all leads connecting the upper housing to the
lower housing.
-
Follow instructions above for removing the power switch and timer. You will
need to work around the jar sensor cable.
-
The silicone sealant will need to be removed where the ribbon cable comes
through the housing. Score down each side of the ribbon cable with a sharp
edge and remove the silicone.
-
Peel the touch pad off the front of the housing and pull the ribbon cable through
the slot.
-
It is important to remove the sticky residue that remains on the housing
before installing the new touch pad. It is equally important to ensure that the
surface is free of all contaminates that may interfere with the proper adhesion
of the replacement touch pad.
-
Once the housing is clean reverse the process to reassemble the housing.
-
Be careful after removing the paper back from the new touch pad to locate the
pad in the correct spot the first time. The ribbon will try to push the touch pad to
the right. You will find it easier to pull the ribbon through the slot and position
the edge of the touch pad closest to the ribbon first.
