Arcam AVR250 manual The ‘Basic’ Set-upMenus, General Settings

The ‘Basic’ Set-up Menus

1 – General Settings:

Max Volume: This limits the maximum volume setting the system can be turned up to. This is a useful feature to prevent accidental overdriving of low power- handling speakers, for example.

Max On Volume: Limits the maximum volume the system operates at when it is first switched on. The system comes on at the ‘Max On Volume’ if the last used (possibly very loud) volume exceeds this value.

Delay units: Controls whether the delay settings for the speakers in surround modes are specified in Imperial or Metric measurements from the listening position, or in terms of time. Either enter the time delay to each channel if calculating the delay in milliseconds, or select between Imperial or Metric measurements and allow the AVR250 to calculate the time delay automatically. Imperial is measured in feet and Metric is measured more precisely in 0.1m (10cm) increments (1 foot is approximately 0.3 metres).

Note that changing the units resets all distances/times to zero. It is therefore important to choose the units (Time, Imperial or Metric) before set up.

OSD Mode: Controls how the on-screen display is viewed.

nMIXED: the OSD will appear on top of the existing video picture

nFULL PAGE: the OSD is displayed in white on a full screen black background.

On video signals that have a sync rate of greater than the normal interlaced rate (i.e., progressive scan, frame-scaled video, HDTV) the OSD will automatically go into Full Page mode (black background) so that the control menu can be accessed. Any pop-up displays (such as the volume bar, source selection information, etc) will be switched off.

Video Status: The video status control is intended for use with SCART connections, but may find use for other purposes. It is possible to use a SCART connection between the AVR250 and your television even though the AVR250 does not have a SCART socket; a pin-out for a SCART lead suitable for this purpose is given on page 32. We suggest the ‘SQART’ cables manufactured by QED (www.qed.co.uk); please ask your dealer for details.

This setting controls the two video triggers fl fm on the rear panel and is used to inform the AVR250 which type of video connection is present between it and your TV, in order that the AVR250 can set the control lines correctly for SCART connections. Note that if you do not wish to use the video triggers or a SCART connection, then it does not matter which value this item has.

This item has four settings: COMPOSITE, S-VIDEO, RGB and SCRN CTRL.

COMPOSITE: This mode is used to indicate to your TV that composite video is being sent. It uses the trigger labelled 1/RGB fl (which should be connected to the RGB SCART input on your TV), as shown. Select this option if you are using the composite video output of the AVR250.

The 2/S-VIDEOtrigger is not active in this mode.

AVR250

E-12

S-VIDEO: This mode is used to indicate to your TV that S-video is being sent. It uses the trigger labelled 2/S-VIDEOfm, as shown. Select this option if you are using the S-video output of the AVR250.

Note that, if this option is selected, the connection labelled ‘S-video SCART’ (or similar) must be used on the TV, as not all SCART connectors are wired for S-video.

The 1/RGB trigger is not active in this mode.

RGB: This mode is used to indicate to your TV that RGB video is being sent. It uses the trigger labelled 1/RGB, as shown. Select this option if you are using the RGB output of the AVR250. If this option is selected, the connection labelled ‘RGB SCART’ (or similar) must be used on the TV, as not all SCART connectors are wired for RGB.

The 2/S-VIDEOtrigger is not active in this mode.

SCRN CTRL: The two video triggers on the rear panel have the same signal for all outputs. This will be +12V when any video source is selected, otherwise 0V. This can be used (for example) to unfurl projector screens automatically when a video source is selected.

1/RGB trigger output with COMPOSITE selected:

Connector	Function	Voltage
Tip	RGB mode select	0V
Ring	RGB/composite SCART input	Video present, aspect 4:3 = 12V
	select (CVBS status)	Video present, aspect 16:9 = 6V
	Aspect ratio 4:3/16:9	No video signal = 0V
Sleeve	Ground	0V

2/S-VIDEOtrigger output with S-VIDEOselected:

Connector	Function	Voltage
Tip	Video source trigger	Any video source selected = 12V
		No video source selected = 0V
Ring	S-video SCART input select	Aspect 4:3 = 12V
	(CVBS status)	Aspect 16:9 = 6V
	Aspect ratio 4:3/16:9	No video signal = 0V
Sleeve	Ground	0V
1/RGB trigger output with RGB selected:
Connector	Function	Voltage
Tip	RGB mode select	RGB video = 1V (into a 75ohm
		load)
Ring	RGB/composite SCART input	Video present, aspect 4:3 = 12V
	select (CVBS status)	Video present, aspect 16:9 = 6V
	Aspect ratio 4:3/16:9	No video signal = 0V
Sleeve	Ground	0V
1/RGB and 2/S-VIDEOtrigger outputs with SCRN CTRL selected:
Connector	Function	Voltage
Tip	Main zone on trigger	Main zone turned on = 12V
		Main zone turned off = 0V
Ring	Main zone on trigger	Main zone turned on = 12V
		Main zone turned off = 0V
Sleeve	Ground	0V