Haier HLC19R Service Manual

The Haier HLC19R has 181 preset channels.

If the power supply cord or plug is damaged or frayed, you should unplug the unit from the wall outlet and refer servicing to qualified service personnel.

For added protection during a lightning storm or when the TV is left unattended for a long period, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product due to lightning and power line surges.

The system can generate the PWN signal to control the strength of the TFT LCD Panel’s backlight through the connector.

For a clearer picture, it is recommended to use a CATV system or an outdoor antenna. If you are in a poor signal area, consider purchasing a signal amplifier and installing it properly.

If there is noise in the picture, change the PC mode to another resolution, change the refresh rate to another rate, or adjust the brightness and contrast on the menu until the picture is clear. If the refresh rate of the PC graphic card cannot be changed, consider changing the PC graphic card or consulting the manufacturer of the PC graphic card.

The VGA_PLUGPWR signal interacts with various components such as resistors (e.g., R182, R185) and diodes (e.g., D31, D32, D33, D34) to ensure proper detection and handling of the VGA plug connection. These components help in managing the signal integrity and power distribution.

The 'MUTE' function in the Haier HLC19R is used to control the audio output. It is connected to various components such as resistors (e.g., R1719, R1725, R1753, R1758, R1765) and transistors (e.g., Q54, Q60, Q61) to manage the audio signal.

The 'OFF_MUTE' function in the Haier HLC19R is used to control the audio output. It is connected to various components such as resistors (e.g., R300, R307, R1753, R1758, R1765) and transistors (e.g., Q54, Q60, Q61) to manage the audio signal.

If your Haier HLC19R TV has no picture, first check the cables that connect with PSB and the Lvds wire with the panel. Then, check the output voltage of connector CN4.