Akai PDP4294LV1 Service Manual download pdf (Page 40)

Basic operation of Plasma Display

1. After turning on power switch, power board sends 5Vst-by Volt to Micro Processor

IC waiting for ON signals from Key Switch or Remote Receiver.

2. When the ON signal from Key Switch or Remote Receiver is detected, Micro Processor

will send ON Control signals to Power. Then Power sends (5Vsc, 9Vsc, 24V and RLY

ON, Vs ON) to PCBs working. This time VIF will send signals to display back light,

OSD on the panel and start to search available signal sources. If the audio signals

input, them will be amplified by Audio AMP and transmitted to Speakers.

3. If some abnormal signals are detected (for example: over volts, over current, over

temperature and under volts), the system will be shut down by Power off.

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Akai PDP4294LV1 Service Manual Page 40