Valor rm-921c ユーザーガイド

28 

The picture on 
the screen is 
dark. 

1.  The equipment locates 

at a low temperature 
area. 

2.  Brightness is set too 

low. 

1.  This is the 

characteristics of LCD 
display in low 
temperature, it will 
restore to normal 
brightness after starting 
the display for few 
minutes. 

2.Adjust the brightness 

setting. 

No sound can 
be heard from 
the IR wireless 
headphones. 

1.  Headphones are not 

turn on. 

2.  The battery in the 

headphone is low. 

3.  There is object blocking 

the transmitting module 
or beyond the effective 
receiving area. 

1.Turn on the headphones. 
2.Replace or recharge the 

batteries. 

3.Remove the blocking 

object or move back to 
the receiving area. 

Power Source

 

Vehicle battery (DC +10V ~ +16V)

 

Operating Voltage

 

DC +14V

 

Mechanism

 

Manual Open / Close

 

Display Angle

 

Vertical Adjustable: Up/Down > 150°

 

Pixel 

800RGB(W)x480(H) 

Viewing angle(up/down/left/right)  45/55/65/65 

Operating current   

<2000mA(Typical V

=14V) 

Dome Light 

<2W 

Operation Temperature 

-5℃ to +50℃ 

Storage Temperature 

-20°C to +70°C