Yamaha AG-STOMP GA 011589 Service Manual page 14

AG-Stomp
4. Heat Sink (Manhour requirement: 25 min.)
4-1. Remove the bottom case. (See Procedure 1.)
4-2. Remove the DM circuit board. (See Procedure 2.)
4-3. Remove the two (2) screws marked [A-a] from the
soldered face of the DM circuit board and the three
(3) screws marked [A-b] from IC112, IC113 and
IC114. The heat sink can then be removed from the
DM circuit board. (Fig. 4)
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Heat Sink
[A-a]
IC114
IC113
[A-b]
IC112
[A-a]
Fig.4