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Ashley BellAug 13, 2025
What to do if my Haier HL42R has no sound?
- RRobert CollinsAug 13, 2025
If there is no sound on your Haier TV, check the cables connected to the PSU. Then, check the input voltage and the speaker output.

What to do if my Haier HL42R has no sound?
If there is no sound on your Haier TV, check the cables connected to the PSU. Then, check the input voltage and the speaker output.
How to fix a Haier TV that has no power?
If your Haier TV has no power, check the cables connected to the PSU. Next, verify the PSU input voltage (AC input at CON1) and then check the PSU output voltage orderly (CON2).
Why is the backlight off on my Haier HL42R?
The backlight on your Haier TV might be off due to bad connection between the wire and the electrode, resulting in a loss of backlight action.
Why is the backlight dark on my Haier HL42R?
If the backlight on your Haier TV is darker than normal, it might be caused by a bad connection or a short between the wire and the electrode.
How to fix Haier TV LCD that is not bright?
If the LCD on your Haier TV is not bright, check the cables connected to the PSU. Then, check the input voltage (CNA1) and the output voltage (CND1).
Why does the backlight shut down on my Haier TV?
The backlight on your Haier TV might shut down after some time because of a short between the lamp housing and the wire, which causes excessive power consumption.
What causes mechanical noise in a Haier HL42R?
Mechanical noise in your Haier TV can be caused by mechanical noise from the backlight unit. This noise may appear when turning on the panel.
What happens when the backlight wire is open in a Haier HL42R?
If the backlight wire is open in your Haier TV, which can be caused by abnormal operation or systemic noise, there will be no backlight.