TB 9-6625-152-24
(3) Set TI as listed in (a) through (e) below:
(a) Press AF TEST.
(b) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is
highlighted, FREQ, and set to 1 kHz.
(c) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is
highlighted, LEVEL, and set to 1 V.
(d) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is
highlighted, then press ON OFF key to on.
(e) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, then press ON OFF key to off.
(4) Adjust TI AF1 LEVEL for a multimeter indication as close to 1 V as possible.
(5) Set TI as listed in (a) through (d) below:
(a) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is
highlighted, then press ON OFF key to off.
(b) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, FREQ, and set to 400 Hz.
(c) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, LEVEL, and set to 20 mV.
(d) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, then press ON OFF key to on.
(6) Adjust TI AF2 LEVEL for a multimeter indication as close to 20 mV as possible.
(7) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is highlighted,
then press ON OFF key to on.
(8) Press TI AF TEST, [Dist/S-N], [Dist'n]. If TI DISTORTION METER
indication is not between 1.4% and 2.6%, perform b below.
(9) Press TI AF TEST, [Dist/S-N], [Sinad]. If TI SINAD METER indication is
not between 33.0 dB and 35.0 dB, perform b below.
(10) Set TI as listed in (a) through (d) below:
(a) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is
highlighted, then press ON OFF key to off.
(b) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, FREQ, and set to 400 Hz.
(c) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, LEVEL, and set to 250 mV.
(d) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, then press ON OFF key to on.
(11) Adjust TI AF2 LEVEL for a multimeter indication as close to 250 mV as
possible.
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