Read Sharp PN-655E (serv.man3) Service Manual online
PN-655E
CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTION
2 – 9
3. PC OPERATION
3-1. COMMUNICATION PROCEDURE
Basic operation
<Command format>
When a command is sent from the PC to the monitor, the monitor oper-
ates according to the received command, and sends a response mes-
sage to the PC.
Example: VOLM0030
POWR
30 (“
” indicates a space.)
*Be sure to input 4 characters for the parameter.
Pad with spaces if necessary.
Wrong : VOLM30 [Enter]
Right : VOLM
30 [Enter]
(“
” indicates a space. [Enter] is the return code
(0DH, 0AH or 0DH).)
If a command has “R” listed for “DIRECTION” in the “RS-232C Com-
mand table”, the current value can be returned by using “?” as the
parameter.
Example :
1. If an ID number has not been set:
VOLM????
1 From PC to monitor
(How much is current volume setting?)
30
1 From monitor to PC (Current volume setting: 30)
2. If an ID number has been assigned (For example, ID number
=
1)
VOLM
?
1 From PC to monitor (“ ” indicates a space.)
30
001
1 From monitor to PC (“ ” indicates a space.)
<Response code format>
[SIZE]
(about 5
seconds)
4
[b]
4
[d ]
4
[c]
4
[e ]
FUNCTION
ALL RESET
Returns all settings to their factory preset values. After initializa-
tion (reset), turn the main power switch off and then back on.
tion (reset), turn the main power switch off and then back on.
ADJUSTMENT LOCK
LOCKED/UNLOCKED
Specifies whether to lock settings such as ADJUSTMENT and
WHITE BALANCE.
While locked, the remote control unit cannot perform operations
other than turning power on/off (POWER button) and displaying
the FUNCTION 1 screen.
WHITE BALANCE.
While locked, the remote control unit cannot perform operations
other than turning power on/off (POWER button) and displaying
the FUNCTION 1 screen.
LOCKED
: Locks the setting.
UNLOCKED : Unlocks the setting.
OSD DISPLAY
ON/OFF
Hides/shows menus. The FUNCTION 1 screen cannot be hidden.
ON : Displays the menus.
OFF : Hides the menus.
ON : Displays the menus.
OFF : Hides the menus.
LED
ON/OFF
Specifies whether to light LEDs.
ON : Lights LEDs.
OFF : Does not light LEDs.
ON : Lights LEDs.
OFF : Does not light LEDs.
RS-232C
LOCKED/UNLOCKED
Specifies whether to allow control via RS-232C.
LOCKED
LOCKED
: Disables control via RS232C.
UNLOCKED
: Enables control via RS-232C.
BUTTON
ITEM
ADJUSTMENT
DESCRIPTION
C1
C2
C3
C4
P1
P2
P3
P4
Return code
Command field
(4 prescribed
alphanumerical
characters)
Parameter field
(4 character string
comprised of:
0-9,
+
,
−
, space
, ?)
■ When a command has been executed correctly
This is returned when execution
of the command is finished.
of the command is finished.
■ When a command has not been executed correctly
*
* This is returned when there is
no such command, or when
the command cannot be
used in the current state of
the monitor (Example: When
“ADJUSTMENT” is used (a
command which is effective
when the input mode is
“ANALOG”), while video is
displayed (the input mode is
“VIDEO”)).
the command cannot be
used in the current state of
the monitor (Example: When
“ADJUSTMENT” is used (a
command which is effective
when the input mode is
“ANALOG”), while video is
displayed (the input mode is
“VIDEO”)).
* If there is a bad connection
between the PC and moni-
tor, or if communication has
not been established, nothing
is returned (not even ERR).
tor, or if communication has
not been established, nothing
is returned (not even ERR).
■ If execution of the command is taking some time
With some commands, “WAIT”
is returned as a return value.
Wait for a moment, and OK or
ERR will be returned. New
commands cannot be received
during this time, even if they are
sent.
is returned as a return value.
Wait for a moment, and OK or
ERR will be returned. New
commands cannot be received
during this time, even if they are
sent.
■ If RS-232C is locked
If RS-232C control has been
locked with the operation lock,
LOC KED is retur ned as th e
returned value.
locked with the operation lock,
LOC KED is retur ned as th e
returned value.
O
K
Return code (0D
H
, 0A
H
)
R
R
E
Return code (0D
H
, 0A
H
)
I
W
T
A
Return code (0D
H
, 0A
H
)
E
C
D
K
O
L
Return code (0D
H
, 0A
H
)
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