各功能描述:

1.　　当A为低电平时,AC-3灯点亮,即是AC-3的输入方式 当A为高电平时,STEREO灯点亮,即是STEREO的输入方式

2.　　当STANDBY灯点亮时，为待机状态；此LED闪动时为MUTE状态,PT2258为静音状态,同时STANDBY为低电平

3.　　各声道（FRONT，SUB，REAR，CENT）其微调音量调节+/-5dB；音量调节从01~80dB

4.　　面板无任何按键,均为遥控器控制

5.　　刚开机时为待机状态，开机时音量为50dB状态,各微调为0dB,

6.　　按遥控器的REST键后,系统为开机时状态，

7.　　PT2258音量衰减共80DB,按遥控器每按一次衰减1dB,

-Descr iption of each function: 1. When A low when, AC-3 lights lit, that is, AC-3 input mode when A is high when, STEREO lights lit, that is, STEREO input 2. When the STANDBY lamp lit, for standby mode　this LED flashing when the MUTE state, PT2258 for the mute state, at the same time STANDBY low 3. the channel (FRONT, SUB, REAR, CENT) fine tuning to adjust the volume of its+ /-5dB　adjust the volume from 01 ~ 80dB4. panel without any keys are remote control 5. just machines for the standby mode, the boot volume to 50dB, and the fine-tuning for 0dB, 6. by remote REST button, the system for boot-up status, 7. PT2258 total volume attenuation 80DB, by remote control every time attenuation 1dB,