Haier HLC22R1 Service Manual

To connect an external component to your Haier HLC22R1 TV, follow these steps: 1. Connect the audio and video cables from the external equipment's output jacks to the TV input jacks, matching the jack colors (Video = yellow, Audio Left = white, and Audio Right = red). 2. Select the input source by using the INPUT button on the remote control. 3. Operate the corresponding external equipment as per its operating guide.

To connect headphones to the Haier HLC22R1 TV, plug a set of headphones into the 3.5mm mini-jack socket located on the rear panel of the set. Note that when headphones are connected, you will not receive sound from the TV speakers.

If the polarized AC cord does not fit into your AC outlet, do not attempt to file or cut the blade. It is recommended to have an electrician replace the obsolete outlet with a polarized one. Do not use the TV with a non-polarized outlet.

The Haier HLC22R1 has several input options including HDMI1, VGA, YPbPr, USB, S-Video, Composite, and LVDS.

The Main IC (TDA1517) is a crucial component in the Haier HLC22R1, likely responsible for processing and managing the video and audio signals from various input sources.

The voltage of 3.3V is calculated using the formula 1.25 x (1+180/110), which results in 3.3V. This voltage is likely used for specific components or circuits within the Haier HLC22R1.

The GPIO (General Purpose Input/Output) pins in the Haier HLC22R1 are used for various control and communication functions. They include GPIO_0 to GPIO_13, which are connected to different control signals and components within the system. For example, GPIO_3 is associated with USBPWRERR and USBPWREN, while GPIO_5 to GPIO_12 are connected to various control signals like OPCTRL0 to OPCTRL5.

The OPCTRL signals (OPCTRL0 to OPCTRL5) in the Haier HLC22R1 are used for controlling various operations within the system. They are connected to different GPIO pins and are involved in controlling the power and communication aspects of the device. For instance, OPCTRL2 is connected to GPIO_9 and is part of the control signals for the +3V3SB supply.

To connect the DVD signal wire, use the wire with the part number 0090402064. This wire is specifically designed for the DVD signal connection in the Haier HLC22R1 model.

The part number for the DVD Keypad Autonserted Board Assembly is 0090701136. This assembly is crucial for the keypad functionality of the DVD component in the Haier HLC22R1 model.