1. Introduction Thank you very much for expressing your confidence in ▲LTO products by purchasing ▲LTO PM-12/16 Dragonfly multi-Channel Mixing Console with Digital Effects. The PM-12/16 are professional compact mixer, which provides the state of the art switching power and advanced digital amplifier technology specifically.
RIGHT DFX OUT FX OUT L FX OUT R CTRL ROOM DSP BOARD LEVEL DFX SEND PRESETS VARIATIONS MUTE Titel ALTO MIXING CONSOLE DSP FOOTSWITCH Size Model No: Revision PM-16 BLOCK DIAGRAM VER050115 Date: 15-Jan-2005 Sheet 1 of File: PM16MAP.Sch Drawn By: TSB.
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RIGHT DFX OUT FX OUT L FX OUT R CTRL ROOM DSP BOARD LEVEL DFX SEND PRESETS VARIATIONS MUTE Titel ALTO MIXING CONSOLE DSP FOOTSWITCH Size Model No: Revision PM-12 BLOCK DIAGRAM VER031126 Date: 12-Jan-2004 Sheet 1 of File: PM12MAP.Sch Drawn By: BAO.
7. Test Procedure Test equipment (1) AP (Audio precision) (2) Dual-track oscilloscope (3) Voltage meter (4) Load Equipment setting (1) AP Output: 0dBu 1KHz sine wave, load out 600Ω Bal-Float or 600Ω BNC-Unbalanced (2) AP Output: 15dBu 1KHz sine wave, load 600Ω BNC-Unbalanced. (3) AP Output: 4dBu 1KHz sine wave, Load 600Ω...
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(8) Connect unbalanced 15dBu input to LINE IN 1-8, press MAIN L-R button, and measure the unbalanced output of MAIN MIX OUTPUT while PAN set both in left and right, it is -6dBu(+/-2dBu) THD+N<0.10%. (9) Set AUX1 and AUX2 of DFX (INT) RETURN EFFECTS TO MONITOR in minimum, measure the output of AUX SENDS1~4 and it is 0dBu (+/-2dBu) THD+N<0.10% (this output can be influenced by the channel LEVEL).
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6dBu (+/-2dBu) THD+N<0.10%, and the outputs of SUBGROUP OUTPUT 1-2 and 3-4 are - 6dBu (+/-2dBu) THD+N<0.10%. adjust the faders of SUB1-4 of Sub1-4 of SUBGROUPS you can control the output level of respective SUBGROUP OUTPUT1-4. While connected an unbalanced plug at SUBGROUP INSERT, there will be no output on SUBGROUP OUTPUT1-4. D.
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show as below while the LOW CUT switch is pressed or not pressed. (2) Q HI & LOW are set maximum and minimum independently (EQ MID in center), the response curve is as below. (3) EQ MID are set maximum and minimum independently (EQ HI & LOW in center), and set FREQ at 100Hz and 8KHz respectively, the response curve is as below.
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Noise test: Connect high quality speakers with PM12, press MAIN MIX of CTRL ROOM SOURCE, set PHONES knob at maximum. Press MAIN L-R buttons on each channel, all faders up to maximum, then turn the TRIM knob of each channel to verify there is no abnormal noise. Power test: Connect a 4 ohm load and set the AP’s Watts column as 4 ohm.