Vanguard ATRT-03_03B S2 - Manual (Page 20)

ATRT-03 S2, ATRT-03A S2, AND ATRT-03B S2 USER’S MANUAL REV 2
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b. The LTC control board is located under the left side of the front panel as shown in the
figure below. Flip the unit over to easily access the LTC control board fuses.
c. Replace any fuses as necessary with Littlefuse P/N 217001 or equivalent (250 Vac/1A, 5
X 20mm fast-acting type).
d. Re-secure the unit in its casing with the screws that were removed in step a.