PDP-R05E
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6.3 USING RS-232C COMMANDS
¶
Rough diagram of switching between SR+ and RS-232C
¶
How to switch from SR+ to RS-232C
For the PDP-435HD and PDP-505HD series Plasma Displays, the circuitry is structured as shown in the diagram below to
support the SR+ system. Controlling with either the SR+ system or RS-232C commands can be selected. As the SR+ system
is selected at shipment, to control with RS-232C commands in servicing it is necessary to switch the paths. After servicing, be
sure to return the setting to the SR+ system.
232C (DSUB_9P)
TXD (EXT), RXD (EXT)
SR_EN_B
SR+ (SR out)
232C
Driver
IC9702
(IF Microcomputer)
SR+
Interface
SR Assy
AV BOARD Assy
Remote control unit
START
INFORMATION
VERSION
INITIALIZE
SYNC DET
MUTE
Up
Down
Select
INITIALIZE
mode
INITIALIZE
UART SELCT
Select
UART
Enter the Service Factory mode
SR+
→
232C / 232C
→
SR+
Left
Right
INITIALIZE
UART
Select
SR+ / 232C
SR+
↔
232C
Tips: How to change the SR+/RS-232C setting without entering Service Factory mode
Hold the
VOLUME
or key on the remote control unit pressed for 3-10 seconds during Standby mode.
Then within 3 seconds after the key is released, hold the
2-screen
key on the remote control unit pressed for 3-10 seconds.
Then within 3 seconds after the key is released, use the
SET
key on the remote control unit to set to RS-232C (the baud rate
last selected is chosen) or the
HOME MENU
key to set to SR+.
Summary of Contents for PDP-R05E
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