ELRO DVR74W 7 tft 4-ch digital recorder + 500Gb hard disc - Manual (Page 6)

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Chapter 2 ENTIRONMENT ADAPTABILITY
Notice
For the saftly using DVR and prolonging device life, please pay attention to the following details：
1 When installing device, please comply with all the electric product safty criterion；
2 Power and ground：
Do not touch the power and DVR with a wet hand
Do not drop liquid onto DVR
Do not put others on DVR
Please use soft dry cloth when clean DVR, do not use chymistimpregnant
When the power line connects with jack, even don’t startup device. There still have voltage
If you do not use device for a long time, please take the power line away from jack.
3 Humidity requirement
Please install the device under good conditions, it’s better to prevent from humidity , drip sites,
etc.
Chapter 3 Device operation manual
In device operation, the enter key on remote control has the same function with mouse left click.
3.1 Remote key instruction
3.1.1 Remote control
Handheld IR Controller Key Functions:
【 0－9】keys: During setup, number keys are used to input values. For viewing
channels 1, 2, 3 and 4, use 1, 2, 3 and 4 on numeric keypad respectively.
【＋】 ,【－】keys: During setup, plus and minus are used to select next or previous
values.
， : Up, Down directional keys: Move selection up and down in setup menu.
， : Left, Right directional keys: Move cursors left or right in setup menu.
【 】 : Switch 4 Channels；
【 】 : Fast backward the video while playback in the playback mode,
Fast fordward the video while playback.
press 【 】to return to normal speed；
【 】 : press【 】 to return to normal speed；
【 STANDBY】: Reset the MDVR to Power on and Power off mode. (standby and start up)；
【 LOGIN/LOCK】: If the security is enabled in the setup, use LOGIN/LOCK key to enter the user setup. It is
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Answer：
Check the DVR whether it use by DC 19V power adaptor
Check the HDD whether it is formatted in DVR
Check the HDD power line and the data line whether they are well-connected or bad
The HDD has problem
The SATA port has problem
5. Question：What’s meaning“R”“M”“I”“H” show in interface?
Answer：
“R”means the channel is recording
“M” means the channel is being motion detection
“I”means the channel is being alarm
“H”means there is no HDD, the HDD is bad or the space of HDD is full
6. Question：Why DVR has the problem of real-time image, such as video image color, serious bright
distortion?
Answer：
BNC output, select PAL and NTSC is not correct, the image will be black and white
DVR does not match with monitor
The video transmission distance is too far
The setting of dvr color , brightness and so on is wrong
7. Question：Why there is no voice when monitoring?
Answer：
Check if it is using positive sound box or speaker, users can have short circuit to check.
Is activation of the audio source connected to the video channel? You can click to full-screen to
determine.
The hardware of DVR is fault
8. Question：Why there is no voice when playing back?
Answer：
Setting problem: open audio-video item
Check the audio whether it is closed in playback interface
9. Question：Why the system time is not right?