Zenith P50W26, Руководство по обслуживанию

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PV154 - 923-03499
12
P50W26 - SERVICING
SERVICING
EXTERNAL CONTROL
OVERVIEW
Connect the RS-232C input jack to an external control
device (such as a computer or an A/V control system)
and control the set’s functions externally.
Connect the serial port of the control device to the RS-
232C jack on the Monitor back panel. RS-232C
connection cables are not supplied with the set. The
set’s remote control and front panel controls (except main
power) will not be functional if the set is controlled by a
PC computer or other external device.
CONNECTION
Type of connector is a D-Sub 9-pin male (Use a null
modem/serial cable). Wire the 7-Wire cable so that each
pair of data lines cross between the two devices. These
data line pairs are RXD (Receive data) and TXD (Transmit
data), DTR (DTE side ready) and DSR (DCE side ready),
and RTS (Ready to send) and CTS (Clear to send).
When using the 3-Wire cable connected to RXD, TXD and
GND; Pin No. 4 (DTR) and Pin No. 6 (DSR) must be
connected to the monitor. (The cable must be
disconnected from the Monitor to be able to use the
remote control and Monitor front panel controls.)
1
5
6
9
Pin No.4 and Pin
No.6 must be
connected on
monitor side.
No. Pin name
1 No connection
2 RXD (Receive data)
3 TXD (Transmit data)
4 DTR (DTE side ready)
5 GND
6 DSR (DCE side ready)
7 RTS (Ready to send)
8 CTS (Clear to send)
9 No Connection
With the RS-232 input connected, the set cannot be
controlled by both an external control device and the
remote control at the same time. The set can only be
controlled by either the remote control or the external
control device.
RS-232C CONFIGURATIONS
7-WIRE CABLE CONFIGURATION
2
3
5
4
6
7
8 RXD
TXD
GND
DTR
DSR
RTS
CTS
TXD
RXD
GND
DSR
DTR
CTS
RTS
PC
7-wire configuration
(Standard RS-232C cable)
DB 9
Control line
3
2
5
6
4
8
7
PDP
DB 9
The Monitor is available to switch between external
adjustment and remote control adjustment using a
control line. If the control line is high, the monitor is
controlled by the external control device. If the control
line is low, the Monitor is controlled by the Monitor’s
remote control.
3-WIRE CABLE CONFIGURATION
2
3
5
4
6
7
8 RXD
TXD
GND
DTR
DSR
RTS
CTS
TXD
RXD
GND
DTR
DSR
RTS
CTS
PC
3-wire configuration
(Not standard)
DB 9
3
2
5
4
6
7
8
PDP
DB 9
When using a 3-Wire cable configuration there is no
control line. The external control device must put the
Monitor into the “change into remote control
adjustment mode”. The Monitor will then be able to
be controlled by the remote control. If the Monitor is
turned back on, it will revert back to external device
control.
SET ID
Set ID to specify a monitor identification number. Press
the menu button and then use the up/down button to
select the SPECIAL menu. Press the vol (G) button.
Use the up/down buttons to select SET ID and then press