E-31
English
RADIO INTERFERENCE
The AV8 is a digital audio device which have been designed to very high
standards of electromagnetic compatibility.
The unit can radiate RF (radio frequency) energy. In some cases this can
cause interference with FM and AM radio reception. If this is the case,
keep the AV8 player and its connecting cables as far from the tuner and
its aerials as possible. Connecting the AV8 and the tuner to different
mains sockets can also help to reduce interference.
EU COUNTRIES – These products have been designed to comply with
directive 89/336/EEC.
USA – These products comply with FCC requirements.
PROCESSING COMPONENT SPECIFICATIONS
The following list of chipsets used in the AV8 is provided for the interest
of technical enthusiasts:
SPDIF receiver: Crystal Semiconductor CS8415A – a 96kHz digital
audio interface receiver chipset.
ADC: AKM AK5383 – a 24-bit, 96kHz, 128x oversampling two-channel
A/D converter for professional digital audio systems.
DAC: WM8740 – a 24-bit 96kHz very high performance stereo DAC
designed for home theatre systems.
Volume control: Burr-Brown PGA2310 digitally controlled stereo
analogue volume control.
OSD: STV5730 – a high performing chipset used for on screen
displays.
Video switching composite/S-video: Rohm BA7625 – a high
performance chipset used for video switching.
Video switching YUV/RGB: Elantec EL4332 – a very high performing
broadcast quality chipset designed for component video multiplexing.
DSP: Crystal Semiconductor CS49326 and CS49330 – these are 24-bit
96kHz multi-standard DSP decoders.
Micro controller: Hitachi HD64F2329VF25 – provides three serial
communications ports, a watchdog timer, and 384KB flash-updated
memory.
Additional technical information
LOCKING THE SETUP MENU
With the facility for up to five preset setups, and the ability to
temporarily trim many settings, there should little need to use the
Setup Menus once the system is fully installed. Many of the AV8 settings
in the Setup Menus require specialist knowledge and measurement.
Access to the Setup Menus may be locked out to prevent changes
being made to the settings by inexperienced users.
To lock the setup menus, press the OK, TUNER and DVD-A buttons on
the front panel together at the same time. ‘Setup Menus Locked’ is
displayed.
Similarly, to unlock the menus, press the same three buttons together
at the same time.
PROGRAMMING VIA THE RS232 INPUT
Re-programming the AV8 with new operating software is possible via
the RS232 control input, but this should only be carried out by trained
technical personnel.
Use the RS232 Connection
gq
with a suitable lead to the re-
programming computer. Locate the Programming button
fk
which is
adjacent to the S-video inputs.
To re-program, the AV8 must first be turned off. Press and hold the
PROG button while powering up the AV8. Note that the front display
is blank in programming mode. Follow the operating instructions
provided with the update software. When reprogramming is complete,
turn the AV8 off then on again ten seconds later to restore normal
operation with the new software.
