Confidential
Shortest Route for Disassembly of Major Parts
The next diagram shows the shortest disassembly route of major parts. Perform disassembly by
following this diagram as well as explanations for the target item.
How to use the key map:
1. Find a component that you want to removed that is enclosed in a box with
black lines (not blue dotted lines).
2. Trace the line upward from the component to START.
3.
You need to remove all components or units on the path back to START.
Note that the steps of disconnecting cables and removing plates on the units are
not described in this key map.
Rev. A
TM-U220 (TypeB/TypeD) Service Manual
Disassembly and Assembly 4-3