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
- LG 32LD320‑ZA includes a built‑in DVB‑T MPEG‑4 decoder; external boxes aren’t required when the tuner and signal path are healthy. [Elektroda, Jakubel3, post #16704617]
- Manual DTV tuning lets you step through UHF channels 5–69; the on‑screen signal meter should move when RF is present. [Elektroda, Jakubel3, post #16704917]
- Users tested passive and amplified directional antennas; initial reception still failed until a higher‑gain directional antenna was installed. [Elektroda, Jakubel3, post #17383137]
- Auto‑tune and manual scans can both return zero results if feedlines are shorted or mis‑aimed; cross‑check with a neighbor’s antenna. [Elektroda, 1 PAWEL, post #16707663]
- The “antenna power/amplifier” option may appear disabled until you switch to DTV and enter tuning screens. [Elektroda, Jakubel3, post #16704789]
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]
