PDP-436SXE
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7.1.4 POWER ON/OFF FUNCTION FOR THE LARGE-SIGNAL SYSTEM
Short-circuit test pin K7601 (DRF)
and GND with alligator mouth clip.
SR Assy
Function:
To prevent a power-down from being generated, operation of only the digital-signal processing and audio circuits
are enabled, and power is not supplied to the panel driving system (large-signal system).
Usages:
1. In a case where a check is required of signals' being correctly output to the driving systems during a repair, etc.
2. In a case where diagnosis is required for judging whether the power to the large-signal system or small-signal
system has been down when a power-down occurred.
3. In a case where micro-computer is required to rewrite.
Methods:
1. Short-circuit the test point K7601 (DRF) of the SR Assy and GND (see Fig. 4 below).
2. Issue the "DRV S00" RS-232C command. (Command for turning the function off: DRV S01)
Notes:
• When the power to the large-signal system is off, as the PD signal is muted, power-downs other than PS_PD are
not activated.
• As soon as the clips are removed while the power to the large-signal system is off, a power-down will occur.
Be sure to turn the power off before removing the clips.
• While this function is activated with RS-232C commands, it is possible to issue "DRV S01" (for turning the
function off) while the power is on. However, as it may damage the unit, turn the power off before issuing the
"DRV S01" command.
• Although the "DRV S00/S01" RS-232C commands are valid during Standby mode, once the main power is
turned off, the unit will return to "DRV S01."
Fig. 4 Position of DRIVE OFF
Содержание PDP-436RXE
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