- ページ 6

変調器 DRAKE VM2551のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。DRAKE VM2551 12 ページ。 Commercial video modulator
DRAKE VM2551 にも：取扱説明書 (10 ページ)

Operation

Opera n

Display Mode

This bu on scrolls through the selec

The res g state (default) of the modulator's display mode is the channel number.

Channel

The output channel is selected by pressing the UP or DN bu on when in the channel display mode.

The LED display will blink indica g a transi

The actual channel is not changed un the ENTER bu on is pressed.

If the ENTER bu on is not pressed, the display will return to res g state a er 30 seconds.

Pressing and holding the UP or DN bu on will allow for faster scrolling of channel.

All internal a enuators are temporarily set for maximum a enua

Channel Conﬁgura

The Channel Conﬁgura

is changed by pressing the UP or DN bu on when in the Channel Conﬁgura

The LED display will blink indica g a transi

The channel conﬁgura

is not changed un the ENTER bu on is pressed.

If the ENTER bu on is not pressed, the display will return to res g state a er 30 seconds.

If the mode is to be changed and it is not a valid mode for the exis g channel, when the ENTER bu on is pressed, the new

mode will be selected, and the channel will default to channel-2.

The available Channel Conﬁgura

C = Standard (default from factory)

I = IRC

H = HRC

U = Broadcast VHF/UHF

Error

The Display will show a ﬂashing "EE1" if the PLL1 is not locked.

The Display will show a ﬂashing "EE2" if the PLL2 is not locked.

The Display will show a ﬂashing "EE3" if both PLL1 and PLL2 are not locked.

All internal a enuators are automa cally set for maximum a enua

Please contact our Service Department should any of these errors condi

of Channel, Channel Conﬁgura

state.

are as follows:

VM2050 (only) Subchannel display in standard

and

Output Level mode in this order.

during channel change (output is muted).

in any of the above condi

occur.

display mode.

(output is muted).