TB 9-4920-451-24
(3) Set S5 (left most toggle switch, fig.1) to the IN position.
(4) If digital display does not indicate value stamped above S5 (fig.1), perform b (1) below.
(5) Set switches as listed in (a) through (c) below (fig. 1).
(a) S5 to OUT position.
(b) S6 to IN position. If digital display does not indicate value stamped above
S6 perform b (2) below.
(c) S6 to OUT position.
(6) Repeat (3) through (5) (c) above until both display values are equal to value
stamped above each switch and no further adjustments are required.
(7) Set switches as listed in (a) through (g) below (fig 1):
(a) RANGE to HI position.
(b) S6 to IN position. If display does not indicate value stamped above S6,
perform b (3) below.
(c) S6 to OUT position and S7 to IN position. If display does not indicate value
stamped above S7, perform b (4) below.
(d) S7 to OUT position.
(e) MODE SELECT to MEG position and MEGOHMMETER SELECT to
EXT position.
(f) S8 to IN position. If MEGOHMS meter does not read value stamped above
S8, perform b (5) below.
(g) S8 to OUT and S9 (farthest right toggle switch fig.1) to IN positions.
(8) If MEGOHMS meter does not read value stamped above S9 (fig 1), perform b (6) below.
(9) Set S9 switch (fig.1) to OUT position.
b. Adjustments
(1) Adjust LO RANGE OFFSET trimmer screw (fig. 1) until display reads same as
value stamped above S5 switch (fig.1) (R).
(2) Adjust LO RANGE GAIN trimmer screw until display reads same as value
stamped above S6 switch (fig.1) (R).
(3) Adjust HI RANGE OFFSET trimmer screw until display reads same as value
stamped above S6 switch (fig.1) (R).
(4) Adjust HI RANGE GAIN trimmer screw until display reads same as value
stamped above S7 switch (fig.1). If necessary repeat (3) above until no further adjustments
are required (R).
(5) Adjust MEGOHMMETER OFFSET trimmer screw until MEGOHMS meter
reads same value as stamped above S8 switch (fig.1) (R).
(6) Adjust MEGOHMMETER GAIN trimmer screw until MEGOHMS meter reads
same value as stamped above S9 switch (fig.1). If necessary repeat (5) above until no
further adjustments are required (R).
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