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[Solved] LG 32LD320-ZA TV Not Searching for DVB-T Channels with Built-in MPEG-4 Decoder & Antenna Issues

Jakubel3 54306 18
Best answers

Why does my LG 32LD320-ZA TV fail to find any DVB-T channels after connecting an antenna?

The TV was not finding channels because the antenna signal was too weak; replacing the directional antenna with a stronger one solved the problem [#17383137] As a troubleshooting step, try the TV on a neighbor’s or colleague’s antenna, because a short circuit in the antenna cable can also cause zero signal [#16707663] In LG TVs, digital channel tuning does not require entering channel names, so the focus should be on signal quality and the antenna/cable path [#16707663]
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  • #1 16704617
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    I have a LG 32ld320-za TV. My problem is that after connecting the cable to the TV from the antenna, the TV does not search for any channels, I will add that it has a built-in MPEG-4 decoder. I have already checked by connecting different antennas to the TV, the problem is still the same, I will add that the antennas were set well. The TV currently operates with a separate DVB-T decoder.
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  • #2 16704636
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    Hello. TV not long purchased from 2 hands or straight from the store? And whether he was looking for channels before and now not?
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  • #3 16704762
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    The television had my sister, everything worked well with her. (lives in Krakow)
  • #4 16704777
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    In the menu in Settings, the amplifier switched on or off?

    Added after 4 [minutes]:

    A colleague has an antenna with an amplifier or without?
  • #5 16704789
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    Disabled, but I can not change this setting. Well, unless I change it to dtv when setting it manually, but anyway, when you leave the tuning, the change option disappears.
  • #6 16704802
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    We write with a capital letter. And what is this antenna with or without an amplifier?
  • #7 16704804
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    Without the amplifier, I tried to connect a second antenna with an amplifier, it was still the same.

    Added after 3 [minutes]:

    Directional antenna.
  • #8 16704816
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    Does automatic tuning find nothing? And silence on hand?
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  • #9 16704828
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    Yes, nothing at all.
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  • #10 16704846
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    And check if sometimes the antenna socket on the TV is damaged or moves?
  • #11 16704850
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    The nest is fine, nothing moves.
  • #12 16704888
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    On manual tuning, what is your system on?
  • #13 16704896
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    I just do not understand it. Nothing pops up on everybody, you have to enter some channel names ...
  • #14 16704907
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    This is about the channel on which the signal is transmitted, but try to change the frequency on DTV.
  • #15 16704917
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    On DTV, I have to choose channels from 5 to 69, the only thing I can do is change them, at the bottom I have a signal probably signal that does not move.
  • #16 16704923
    Pedros050
    Level 43  
    Posts: 17906
    Help: 2471
    Rate: 3901
    Exactly and did you check each channel and zero signal in turn?
  • #17 16704935
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    Yes, nothing, no.
  • Helpful post
    #18 16707663
    1 PAWEL
    Level 42  
    Posts: 7210
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    Rate: 1362
    Jakubel3 wrote:
    you also have to enter some channel names ...

    In LG TV channel names are entered only in analogue programs, digital typing does not require.
    Connect this tv to a neighbor or colleague antenna, you may have a short circuit on the antenna cable.

    https://www.youtube.com/watch?v=H1PkhfrzSjI
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    • pol.pdf (11.47 MB) You must be logged in to download this attachment.
  • #19 17383137
    Jakubel3
    Level 8  
    Posts: 10
    Rate: 35
    The problem solved, enough to buy a stronger antenna in this case, I used a directional antenna.
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Topic summary

✨ The user is experiencing issues with their LG 32LD320-ZA TV, which fails to search for DVB-T channels despite having a built-in MPEG-4 decoder. The TV previously functioned correctly with a different antenna setup. Various troubleshooting steps were discussed, including checking the antenna settings, ensuring the antenna is properly connected, and testing with different antennas (both with and without amplifiers). The user confirmed that automatic tuning yields no results, and manual tuning does not display any channels. A helpful response suggested connecting the TV to a different antenna to rule out cable issues. Ultimately, the problem was resolved by purchasing a stronger directional antenna.
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FAQ

TL;DR: One stronger directional antenna fixed it; “The problem solved, enough to buy a stronger antenna.” If your LG 32LD320‑ZA finds 0 channels, upgrade the antenna first. [Elektroda, Jakubel3, post #17383137] Why it matters: This FAQ helps owners diagnose no‑signal DVB‑T scans on LG 32LD320‑ZA sets and choose the fastest fix.

Quick Facts

Why won’t my LG 32LD320‑ZA find any DVB‑T channels?

In this thread, reception failed until the user replaced their setup with a stronger directional antenna. Weak field strength or insufficient antenna gain causes the tuner to find zero multiplexes, even though MPEG‑4 support is built in. Start by improving antenna gain and aim before suspecting the TV. [Elektroda, Jakubel3, post #17383137]

Does the 32LD320‑ZA have a built‑in MPEG‑4 DVB‑T tuner?

Yes. The owner confirmed the TV includes a built‑in MPEG‑4 decoder for DVB‑T broadcasts. That means you can receive digital terrestrial TV without a set‑top box when the antenna system is correct. [Elektroda, Jakubel3, post #16704617]

How do I manually scan DVB‑T on this LG?

Use the TV remote: 1. Select DTV input, then open Manual Tuning. 2. Step through UHF channels 5–69, watching the signal bar. 3. When the bar rises, store found multiplexes. If the bar stays flat, improve the antenna or cabling. [Elektroda, Jakubel3, post #16704917]

Auto‑tune finds nothing—what should I check first?

Rule out the antenna system. Connect the TV to a neighbor’s known‑good antenna to see if channels appear. This isolates cable shorts, faulty splitters, or bad preamps. “Connect this TV to a neighbor or colleague antenna.” If it works there, fix your feedline and antenna. [Elektroda, 1 PAWEL, post #16707663]

Do I need an antenna amplifier for this model?

An amplifier alone didn’t help in the thread. The fix was a higher‑gain directional antenna, which improved signal quality enough for tuning. Prior tests with both passive and amplified antennas still failed until gain and directionality increased. [Elektroda, Jakubel3, post #17383137]

Why is the antenna power/amplifier option greyed out?

Owners reported the amplifier toggle looked disabled until switching to DTV and entering manual tuning. Once in the right mode, the option may appear, but reception still depends on proper antenna and cabling. [Elektroda, Jakubel3, post #16704789]

What channels or frequencies should I scan on manual tuning?

On this set, manual DTV tuning lets you select UHF channels 5–69. Step through each channel and watch the signal bar. In the case discussed, the bar never moved, indicating no usable RF until the antenna was upgraded. [Elektroda, Jakubel3, post #16704917]

Could a faulty RF input be the cause?

It’s an edge case worth checking. Inspect the antenna socket for looseness or damage and verify the connector doesn’t move. If the socket is firm, focus on the antenna, cable, and alignment. [Elektroda, Pedros050, post #16704846]

Is a flat signal bar during manual tuning normal?

A flat, non‑moving signal bar across channels indicates no detectable RF at the tuner. That points to weak signal, mis‑aimed antenna, bad cabling, or a power‑off masthead amp. Improve antenna gain or test another feed. [Elektroda, Jakubel3, post #16704917]

What ultimately fixed the issue in this forum thread?

Upgrading to a stronger directional antenna restored reception. After installation, the user reported the problem solved, confirming insufficient antenna performance was the root cause. [Elektroda, Jakubel3, post #17383137]

Do I need to enter channel names when tuning digital TV?

No. On LG TVs, naming applies to analog programs. Digital DTV scans don’t require typing channel names; the tuner populates services automatically when it locks a multiplex. [Elektroda, 1 PAWEL, post #16707663]

Could location be the reason my sister’s TV worked but mine doesn’t?

Yes. The same TV worked fine in Kraków but failed elsewhere until antenna gain improved. Local signal strength, transmitter distance, and obstructions vary by location, affecting reception dramatically. [Elektroda, Jakubel3, post #16704762]

My set‑top DVB‑T box works, but the TV tuner doesn’t—what gives?

The OP used a separate DVB‑T decoder successfully while the TV found no channels. External boxes can have different tuners or sensitivity. Matching the TV with a stronger antenna resolved the mismatch. [Elektroda, Jakubel3, post #16704617]

What’s one fast diagnostic to separate TV issues from antenna issues?

“Connect this TV to a neighbor or colleague antenna, you may have a short circuit on the antenna cable.” If channels appear there, focus on your cable, connectors, splitters, and antenna. [Elektroda, 1 PAWEL, post #16707663]
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