Yamaha DSP5D Owner's Manual - Page 44
Controlling the input sensitivity and phantom power (+48V) of the head amp
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5 Input channel operations PM5D-RH model 1 2 PM5D-RH model/DSP5D On the PM5D-RH model/DSP5D, head amp settings are made by operations within the display. 1 Repeatedly press the [SYS/W.CLOCK] key of 3 the DISPLAY ACCESS section until the HA screen appears. HA A [+48V ON/OFF] LED This LED will light if phantom power (+48V) is being supplied to the corresponding INPUT jacks 1-48 or ST IN jacks 1-4. However, +48V will not be supplied unless the rear panel [+48V MASTER] switch is on. B [PEAK]/[SIGNAL] LED The [SIGNAL] LED will light when the input level reaches 14 dB below nominal level (i.e., 34 dB below clipping level). The [PEAK] indicator will light when the signal reaches 3 dB below clipping level. C [LAMP DIMMER] knob This adjusts the brightness of the lamp connected to the LAMP connector. On the PM5D-RH model, the AD IN input signal sensitivity and phantom power (+48V) on/off setting for each channel are controlled from within the display. However, the rear panel [+48V MASTER] switch is the phantom power master switch. Controlling the input sensitivity and phantom power (+48V) of the head amp You can adjust the input sensitivity and switch phantom power (+48V) on/off for the signals being input from INPUT jacks 1-48 and ST IN jacks 1-4. These operations are performed differently on the PM5D model and PM5DRH model. Hint Even if input channels are paired, head amp settings must be made individually. PM5D model For the PM5D model, head amp settings are made using the controls of the AD IN section of the panel (➥ p.43). • The input sensitivity is adjusted by the combination of the [GAIN] knob setting and [PAN] switch on/off setting for that jack. • To supply phantom power (+48V) to an INPUT jack 1-48, turn on the [+48V] switch corresponding to that jack. • To enable an external device that is inserted into the INSERT IN/OUT jacks, turn on the [INSERT] switch corresponding to that jack. 2 In the screen, click the INTERNAL HA button. The internal head amp settings for INPUT jacks 1-48 and ST IN jacks 1-4 will be displayed. 3 Use the buttons and knobs in the screen to edit the head amp settings. 1 2 3 A +48V button Click this button to switch phantom power (+48V) on/ off for that jack. B GAIN knob Drag this knob to adjust the input sensitivity of that jack in a range of +10 dB to -62 dB. Note The PAD will be switched on or off internally when the gain of the PM5D-RH internal head amp is adjusted between -14 dB and -13 dB. Keep in mind that noise may be generated if there is a difference between the Hot and Cold output impedance of the external device connected to the INPUT connector/ST IN connector when using phantom power. C GANG button If this button is on, the input sensitivity of two adjacent odd-numbered/even-numbered channels will change in tandem, maintaining the current offset value. When making these settings, the LEDs of the AD IN section of the panel will indicate the input signal level and the phantom power (+48V) on/off status. Note • On the PM5D-RH model and DSP5D, head amp settings can also be made from the HA/INSERT function CH 1-24 screen, CH 25-48 screen, or ST IN/FX RTN screen (➥ p.283). • Settings for an external head amp device (AD8HR) can also be made from the screen in the same way as for the internal head amps. 44 PM5D/PM5D-RH V2 / DSP5D Owner's Manual Operating section
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