Power Acoustik ptm-750 User Manual download pdf (Page 5)

SIMPLE TROUBLE-SHOOTING GUIDE

Below symptom no mean this production have been broken, Please

check before you repair

Symptom

Probable Cause

Solution

picture

Black Screen

color picture

1 .No12 voltage

2.Brightness or contrast

ratio is too small

3.no high-voltage

1 .No sources output

2.The video concentric plug

becomes loose

1 .check the power is on or

connect rightly

2. check theA/V Cable

is loose or not

3. Increase the brightness

and contrast ratio

.Check the output of VCD

DVD

2.Replace with the AlVcable

3.Tighten

the Video input

cable

Video sources have

no output

2.Color ratio should be

re-adjust

Unclear picture

.check the video sources

2.Enter into the Menu to

re-adjust

With a little regular light

spots and color spots on

the screen or black

horizontal line in the

picture

It is normal symptom in the

active matrix display

technology.

1 .Poor quality of the

video sources

2.Bright &Contrast

it is normal symptom in

view

range

with

little

regular light spots on

display screen.

.Replace with the high

quality videodisc

2.Reset Bright &contrast.

The outer cover of the

monitor has been deformed

1.External temperature is

too high

2. The Power has not been

switch off for a long time

1 .The surround temperature

could not exceed to

-60"

2.Turn off the power after

using the unit

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Power Acoustik ptm-750 User Manual Page 5

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