NOTE: Follow the instructions step by step till the
problem is solved. Check to see if the problem is fixed after each step. If the
problem is fixed, stop there and don’t go through the remaining steps. If the
procedure requires that the system be turned off, always exit the VLR program
before shutting down the system.
1.
A channel does not record
Pick up the telephone handset and run the Line Check
function on that particular channel.
A.
If line energy can not be detected, then
a.
Check if the RJ-45 to RJ-11X4 converter has bad contacts. If so, replace it.
b. Check if the phone cords are good. If not, replace them.
c. Replace the VP894AS card.
B.
If using Local Phone method and line energy can be detected,
replace the VP894AS card.
2.
The system can not find one or more VP894AS cards
A.
Shut down the system and make sure the card’s DIP switch
(I/O, Card Number and IRQ) is configured properly. Refer to the VP894AS Board
Configuration section in this manual for configuration instructions.
B.
Replace the VP894AS card.
3.
DAT I/O error
A.
Clean the DAT drive 2 to 3 times with a DAT cleaning tape.
If the error still occurs, use a new DAT tape.
B.
Exit and restart the system. Do a backup to verify the error
is gone.
C.
Replace the DAT drive.
4.
Blue Screen
A.
Shut down the system. Check if the RAM module is securely
installed. If you are not sure, reinstall the RAM module once.
B.
Turn on the system and check if the CPU fan runs normally.
If not replace the fan.
C.
Exit and turn off the system. Replace the RAM module.
D.
If the problem still exists, then the operating system is
probably trashed. You will have to either re-install the OS or restore a
previous copy.
5.
The speaker makes no sound
A.
Check if the speaker’s RJ-11 connector has bad contacts.
B.
Exit and turn off the system. Wait 10 seconds and turn it on
again. After 2 to 3 seconds the speaker should make some sound. If not, replace
VP894AS card #0 or the speaker.
C.
Replace or repair the VLRC-164 (front panel) P.C.B.
6.
The system can not find the hard drive
A.
Exit and turn off the system. Check if the hard drive’s
cable is securely connected.
B.
B. Replace the hard drive
7.
The system has no power
A.
Check if the power cord is securely plugged in.
B.
Check if the PC fuse is burned. If so, replace it.
C.
Check if the power supply is good. If not, replace it.
8.
No display on the screen after power up
Connect
an external monitor to the system.
A.
If the external monitor displays normally:
a)
Check if the connector on the TFT-164-CPU board (a small
daughter board on the CPU card) is loose or broken.
b)
Check if the connector on the TFT display is loose or
broken.
c)
Check if the high-voltage module on the TFT display is loose
or broken
A.
If the external monitor has no display:
a)
Replace the CPU on the CPU card.
b)
Reinstall or replace the RAM modules on the CPU card.
c)
Replace the CPU card.
9.
LCD screen becomes darker than normal
The
LCD light tube is defective.
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