Samsung HLR series DLP PTVs
- Internal noise may be caused by a foreign substance on the fan or driving device. For a DLP TV, the Lamp Fan, DMD board fan and color wheel are vulnerable to noise. Sometimes the connector wire around the lamp or DMD fan makes contacts with the fan, while the color wheel is protected inside the module and cannot make contact with any nearby wires.
- However the color Wheel Sensor or the drive motor may cause noise by making contact with the color wheel. As color wheel uses an air bearing system, it has very slight possibility of creating internal noise.
- Sometimes, outworn transistors may cause noise when regular noise occurs for other reasons for the fan itself. When irregular noise occurs for no particular reason, check the inside of the TV for any foreign substances.
- The DLP Projection TV may cause noise as the physical screen in empty inside, causing a resonance to a particular frequency. Thus, a low vibration is not a malfunction.
- Any 'Creaking' noise is mostly from the structure of the device itself. A short harsh noise may occur from a distortion or malformation due to thermal expansion between the metal joints, screws and loaded parts, respectively. Any intermittent creaking noise can be removed by loosening the screws.
BLACK SCREEN [Voice Output]
- Check the Lamp/ballast of the replacement and, if there is nothing wrong, check any resistance RA701-RA704 for the waveform or look into the connector jointed areas
- When the measurement is not +-25v DDP1011 is an error. If so, the DMD board should be replaced.
- A black screen with Lamp ON> [Replace DMD board]
- Line pattern: Regular line patterns occur vertically or horizontally > Replace DMD board.
- Voice Distortion > Replace the analog board.
- Outside Light > This is not a product malfunction, but possible installation or human error. This occurs when the projected light from the surrounding illumination reflects onto the screen. This disappears as the TV starts operating and the TV lamp gets brighter. However, it can be avoided outside light by changing the position of the TV or installation angle.
SCREEN FLIP OVER
- Enter Factory Mode in DDP1011 and perform H-Flip (Flip horizontally) and V-Flip (Flip Vertically). The screen will flip over horizontally or vertically
[Factory mode entry methods are given in detail in one among previous posts here]
