Trouble Shooting; Specifications - Doss DHF42PC Installation And Operation Manual

Hand-free color video doorphone
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9. Trouble shooting

1. No sound while calling
a. The connection cable between monitor and camera is loose.
b. The volume has be turned to the end.
2. Unclear image
Please check if the brightness is turned to too down, please adjust the
brightness knob.
3. Can not unlock
The wire of unlock is unconnected or short circuit.

10. Specifications

Indoor-monitor
Power Supply
Power Consumption
Screen
Resolution
Brightness
Video Input
Cutoff-Time
Mike Sensitivity
Operation Temperature
Call Tone
External Dimension
Outdoor-camera
Power Supply
Power Consumption
Imagery Angle
Lamp-house at Night
Operation Temperature
External Dimension
DC13.5V
Standby:
1W; Working: 8W
4 TFT color digital screen
"
320 RGB 240
2
250cd/m
1Vp_p
Stakeout: 1 minute; Conversation: 1 minute
-36dB
-10
+55
chord ring
180(L) 122(W) 23(H)mm
DC 12V(supplied by the monitor)
Working:
2W
Diagonal: about 53
Infrared LED
-15
+50
127(L) 95(W) 35(H) mm
14

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