Panasonic Aj Sd755 Operating Instructions Manual

61
ABCDEF GH
2Attach the outer member brackets to the rack.
Check that the height is the same for the left and
right brackets.
3Remove the four screws at the front for attaching
the left and right side panels.
4Attach the AJ-MA75P rack mount adapter using
the same 4 screws.
1Attach the inner members of the slide rails.
Refer to the figure below for the locations where
the screws are to be attached. The unit can be mounted into a 19-inch standard rack
using the optional rack-mounting adaptors (AJ-
MA75P)....

62
This unit is equipped with an auto head cleaning
function which automatically reduces the amount of
dirt on the video heads. However, in order to
maximize the unit’s reliability, it is recommended that
the video heads be cleaned as and when appropriate.For further details on how to actually clean the heads,
consult with one of our service companies or with your
dealer.
Video head cleaning
Condensation occurs due to the same principle
involved when droplets of water form on a window
pane of a heated...

63
When a warning occurs in this unit, the error number
is indicated on the counter display.
Open the DIAG menu to display a description of the
error on the counter display or monitor TV.
When a operational malfunction has occurred in the
unit, the error number flashes on the counter display.
DIAG menu
This display the VTR information.
VTR information includes “WARNING” information,
“HOURS METER” (usage time) information and
“UMID (Unique Material Identifier)” information. A
DIAG menu appears on the...

64
H04
F LOADINGDisplays the number of times front loading has
been performed in single units.
$Displaying the “HOURS METER”
information
Turn the search dial to move the cursor (2). 
The description for the item where the cursor is
located is shown on the counter display.If “T&S&M” is selected in the setup menu No. 008
(DISPLAY SEL), a message appears in the mode
display whenever a warning or error occurs. When
multiple events occur, the event with the highest
priority is displayed.

OThe resettable...

65
Warning messages
Error messages
PriorityOMonitor display
ODescription
OVTR operation and corrective action
HighE-04 (UNKNOWN SIG)
This appears when the SDTI input signals are not
DVCPRO or DV format signals. (The data stream
format complies with the SMPTE 321M standard.)
VTR:No recording operations can be performed.
OCheck whether the SDTI input has been
connected properly.
(This warning is displayed when SDI signals are
being input.)
PriorityOMonitor display
ODescription
OVTR operation and corrective...

66
Error messages
Error messages
E-55
UNLOAD
ERRORIf the tape has not been taken up during
unloading, this error number flashes on the
display.
VTR:STOP
OSet the POWER switch to OFF and then to
ON again.
E-53
WINDUP
ERRORIf there is an abnormally large discrepancy
between the amount of tape taken up by the
take-up reel and the amount of tape supplied by
the supply reel while the tape is traveling after
the total amount of the tape begins to be
detected, this error number flashes on the
display.
VTR:STOP...

67
Error messages
Error messages
DisplayODescription
OVTR operation and corrective action
E-78
M-IF COMM
ERRORIf a problem has been encountered in
communication between the servo
microcomputer and mechanism relay board, this
error number flashes on the display.
VTR:STOP
OSet the POWER switch to OFF and then to
ON again. E-67
T REEL ROTA
TOO FASTIf the take-up reel motor speed is abnormally
high, the error number flashes on the display.
VTR:STOP
OSet the POWER switch to OFF and then to
ON again. E-64
S...

68
The VTR can be operated by commands when the
RS-232C interface is used.
(See command table on pages 71, 72.)
$Conditions for acknowledging
commands from RS-232C interface
OThe front panel CONTROL switch must be at
REMOTE.
OThe setup menu No. 204 “RS232C SEL” must be
ON.
If the above conditions are not met, [ACK] + [STX]
ER001 [EXT] is returned to the external unit.
Whether the [ACK] code is returned depends on the
setting which has been selected for setup menu
item No. 209 “RETURN ACK”.
Hardware...

69
Software specifications (Protocol)
1. Communication parameters
RS-232C interface
Communication
systemAsynchronous, full duplex
Communication
speed300/600/1200/2400/4800/9600
Bit length7bit/8 bit
Stop bit1 bit/2 bit
Parity bitNONE/ODD/EVEN
ACK codeACK code returned/ACK code not returned

The ACK code is what is returned from the
VTR to the controller when data has been
successfully sent from the controller.
The underlining indicates the factory settings.
Communication
parameterSetup menu item...

70
RS-232C interface
3. Return format
[VTR 5controller (PC)]
The following responses are made to the command. If
necessary, more than one response is made.
$When the communication has terminated
normally
1. The receive completion message is returned.
[ACK]
06h
2. The execution completion message is returned.
[STX] [command] [data] [ETX]
02h XX XX XX XX.....
XX 03h
[command] :
This is the message (data) which is returned or
the execution completion message identifier.
[data] :
This is the data to be...