Friday, May 02, 2014

PLASMA TV - SAMSUNG PS42E7SX/XEC PDP-TELEVISION (P_Europe_42SD) TROUBLESHOOTING

COMMON ISSUES RELATED TO OTHER COMPONENTS [FOR MORE DETAILED DESCRIPTIONS; REFER THE NEXT POST HERE]
* A fixed screen can cause permanent damage to the TV Braun tube:  Braun, PDP and LCD TVs can all be damaged. When a still image is displayed in a sequence, this can leave stains or after-images due to the characteristics of the panel.  However, the DLP TV has the advantage that no stains or after-images are left on the screen.  The DLP TV has mirror pixels on the DMD panel that project the beam onto the screen, in which the mirror is a digital representation of 0s and 1s, leaving no trace of light. The mirror returns to a blank state so that no stains or after-images are left.
* Length of DVI Cable / PC RGB Cable: A too long DVI cable may cause a malfunction or degradation of the visual quality due to an  attenuation of the signal. There is no recommendation for the cable length at present.  In general, although a cable length of up to 5 meters should work, please check if video is
* properly displayed on the screen after connecting. If you think the length of the cable is longer than for normal use, check the visual quality of the video on the screen and shorten the length, if necessary.   This also applies to the PC RGB (D-Sub) cable. When the length of the cable is longer than for normal use, video may not be displayed on the screen. In this case, shorten the cable length.
* When a digitally distributed TV user receives HD-rated broadcasts:  The digital distributed TV (Ready Technique) can render HD sources as HD-rated.
* However, you need to install a set-top box for this purpose. The digital TV alone cannot render HD broadcasting as HD-rated. Install the formal set-top box for HD broadcasts.
* When a digital distributed TV user selects normal size (4:3) to receive SD-rated digital broadcasts:  The digitally distributed TV (Ready Technique) renders any broadcasting service as SD-rated.  However, when connected to a set-top box, the digital TV renders HD broadcasts as HD-rated and renders SD as SD-rated. The screen size is scaled to 4:3.
* When a digitally built-in TV user receives SD (air) broadcasting:  The digitally integrated TV ("built-in" type) renders SD broadcasting as SD-rated.  This can be understood easily.  Even a high-resolution TV cannot improve a low resolution picture into high quality.  In contrast, an SD-rated TV cannot represent HD broadcasting as HD because the resolution of the TV is lower than the original.
* When selecting a picture size of 4:3 in connection with a computer or a multimedia device:  The representation capability of SD or HD-rated depend entirely on the TV set. The HD TV can render HD broadcasting as HD-rated only when it receives HD sources.  In the meantime, the HD TV renders SD as SD-rated when it receives SD sources.  The picture size has nothing to do with the resolution; TV models like SVP-XXL3HD or SVP-XXL6HD have a size adjustment feature to 16:9, 4:3, Panorama, Zoom1, Zoom2 and Auto Wide. This is about the aspect ratio of the top and bottom boundaries to the overall screen and users can select their preference.
SD/HD broadcasts and the TV's display capability are related.
1. A digital broadcast should be transmitted in wide screen (an aspect ratio of 16:9) HD. If the broadcasting station converts a conventional program created in normal screen (aspect ratio of 4:3) into a digital signal and broadcasts the signal, the left and right of the picture will not be displayed.  This symptom also appears in other manufacturer's TV's. The three appliance companies are trying to resolve the problem through the Ministry of Information and Communication.
> When watching an SD (normal) broadcast through a Digital (Wide) TV (480P normal broadcast)
> When watching an SD (normal) broadcast through a Digital Ready (Wide) TV (Using a set-top-box)
> When watching an analog (normal) broadcast through a wide TV.  (When watching a broadcast after changing the aspect ratio of the TV from 16:9 (wide screen) to 4:3)
2. When watching a DVD title or video tape in wide screen (21:9) through a wide (16:9) TV, watching video from a computer or  game console by selecting the aspect ratio to 4:3, or watching video from a DVD, VCR, computer or game console through a wide TV by selecting the aspect ratio to normal (4:3) or wide (21:9), the left and right, or top and bottom of the picture will not be displayed.  This symptom appears in other manufacturer's TV's. The three appliance companies are trying to resolve the problem through the Ministry of Information and Communication.
Changing the Order of the Picture Size for 16:9 Display Devices.
1. When you want to change the picture size in PIP 'ON', you must turn the PIP off before changing the size.  However, you can change the main picture size even in PIP ON for products with no restrictions.
2. When the picture size is not Normal (4:3 for 4:3 display devices, 16:9 for 16:9 display devices) and you turn PIP on, the picture size is changed to Normal. However, you can turn PIP on without changing the picture size for products with no restrictions.
3. In the OSD notation for the picture size, 16:9 is represented as "Wide" instead of "16:9" for devices other than with 16:9 displays.  Ex: For LCD 15:9 devices, "Wide" is displayed on the OSD instead of "16:9".
4. The picture size can be changed even in the blue screen. However, the picture size should be controlled by the product specifications if the change is impossible due to hardware restrictions.