Vk-715 Control Panel And Audio Board; Description; Electrical Characteristics (Tamb=25°); Connector And Switch Locations - Acer AL722 Manual

3. VK-715 Control Panel and Audio Board

E. Description
The VK-715 is designed to offer a user interfaced control panel which passes and receives signals to and from
VL-710 display control board. Also there is a stereo audio amplifier to drive a pair of speakers. When in power
saving mode the audio circuit can be turned off by the control signal from VL-710 board.
F. Electrical characteristics (Tamb=25°)
Audio amplifier(USE Panasonic VP-7723A Audio Analyzor.
Item
Input Voltage(V)
Input Current(m A)
Audio Voltage Gain
Frequency Response
Signal to Noise ratio
Cross talk
Distortion
Output Watt.
Volume Control
Speakers⇒model:4Ø28CP
2X2w speaker; Impedance 8 Ω at 1KHz
G. Connector and Switch Locations
H. Connector and Switch Locations
Location
J1
J2
J3
J4
J5
Audio Input Freq.
50m Vrms 1KHz
100m Vrms 50Hz-20KHz
500m Vrms 1KHz
100m Vrms 1KHz
500m Vrms 1KHz
500m Vrms 1KHz
Type Maker
96113-0813 E&T
SCJ-0348-C SC
87502-0200 ACES
87502-0200 ACES
96113-1013 E&T
Spec.
Min. Typ. Max.
8.4 9
- 500
- - 14d B
+3d B Volume Max.,load 8 Ω
-3dB -
- - -70d B Volume Max.,load 8 Ω
- - -60d B Volume Max.,load 8 Ω
- -
- - 0.5W
- -
Number of pins
8
9
2
2
10
9
Comment
9.6
800
Volume Max.,load 8 Ω
1% Volume Max.,load 8 Ω
Volume Max.,load 8 Ω
- Analog