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Meridian 501/V and 562/V RS232 Interface.
The RS232 interface for the 501/V and 562/V can be operated from any terminal which operates at 2400
baud with 1 start bit, 1 stop bit and no parity. Commands take the form of 2 ASCII characters, in some cases
followed by a signed argument (‘nn’ below). All characters are echoed by the preamplifier. A carriage
return character will execute the command, and backspace is also implemented. When a command is
executed, the preamp will return 8 characters.
The following table lists the commands available.
Source Commands.
CD Select CD source.
RD Select Radio.
LP Select LP.
TV Select TV.
T1 Select Tape 1.
T2 Select Tape 2.
Volume Commands.
VP Volume +.
VM Volume -.
VNnn Goto volume number (1-99).
MU Mute.
General Commands.
CO Front panel copy key equivalent.
SB Standby.
RNnn Move balance to right (-30 to +30).
LNnn Move balance to left (-30 to +30).
N0
- Number keys.
N9
PT Preset (200 comms only).
TK Track (200 Comms only).
CR Select CDR (500 comms only).
CB Select Cable (500 comms only).
TX Select Teletext (500 comms only).
V1 Select VCR 1 (500 comms only).
V2 Select CDR (500 comms only).
LD Select Laser Disc (500 comms only).
Additional 500 Comms Commands.
PL Play.
ST Stop.
PS Pause.
RP Repeat.
NE Next.
PR Previous.
DI Display.
SR Store.
CL Clear.
DP Decimal Point.
FF Fast Forward.
FB Fast Back.
MP Menu +
MM Menu ML Menu Left.
MR Menu Right.
Duncan M Smith, 23rd February 1994
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