ViewSonic VA1912w-3 Service Manual page 12

after a power failure. The power button lock will be deactivated by pressing the front panel control buttons "(1), & (▼)" again
for 10 seconds.
Note 1: Status bar indicating Power Button lock or unlock is in progress and when complete it will indicate "Power Button
Locked"
Note 2: Power should only be lockable in the "On State"
Memory Recall Actions
Memory Recall action on the analog and digital mode as below
1. Set the factory defaults as shown in Section 4-8
2. Clean all the mode setting buffer
3. Execute Auto Image Adjust
Note: Memory Recall should have no effect for Language, Power Lock, User Color Settings or Input Priority
Resolution Notice Actions
1. Resolution Notice OSD should show on screen after changing to non-native mode for 30 sec
2. The OSD should disappear after 10 sec or by pushing button [1] or [2]
Resolution Notice function should be disabled when push button [2] under Resolution Notice OSD
0-Touch™ Function Actions
1. Execute Auto Image Adjust when new mode detected, and save the settings to buffer for further use
2. It should be reset by Memory Recall function
(Should not reset by power off, power unplug and others)
OSD Auto Save
The OSD shall save new settings when it is turned off by the user or when it times out. There shall not be a separate save
2.7 AUDIO INTERFACE (SPEAKER SPECIFICATION)
Line input connection
Line input signal
Line input impedance
Maximum power output (Electric)
Signal to Noise Ratio
Frequency response
Distortion
Vibration
Screen image
Connector PC99 requirement Audio in
Cable type / length
Audio DPMS
ViewSonic Corporation
3.5 mm stereo jack
1 Vrms
20k ohms
1.5W / CH
72 dB
300 TO 20KHZ
8%@1kHz
There should be no audible vibration with volume at 100%. (Input
signal within 1 Vrms)
There should be no affect on the screen image stability under any
conditions
Lime Green pantone # 577C
3.5mm stereo cable / 1.8m length
NOTE: THERE IS NO GUARANTEE <1 W POWER
CONSUMPTION IN ACTIVE OFF MODE, WHEN THE AUDIO
CABLE IS CONNECTED
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