FAQ
TL;DR: LG 43UJ620V has 0 analog headphone outputs; "the TV has only an optical audio output." Use optical PCM + DAC (and often an amp) or go Bluetooth. [Elektroda, kazikszach, post #16870071]
Why it matters: This FAQ helps LG owners fix "no sound in headphones" by choosing the right outputs, adapters, and settings.
- Quick-Facts
- LG 43UJ620V lacks a 3.5 mm headphone jack; audio out is optical (TOSLINK/S/PDIF) only. [Elektroda, kazikszach, post #16870071]
- Wired headphones need an optical-to-analog converter (DAC); many setups also require a headphone amp. [Elektroda, kazikszach, post #16868534]
- Set Sound: Speakers → External and Digital Audio Out (S/PDIF) → PCM for converters to work. [Elektroda, Polon_us, post #16868920]
- Typical Bluetooth path: 2‑in‑1 BT transmitter (~100 PLN) + BT headphones (~100 PLN); volume adjusts independently. [Elektroda, zbygru, post #17217961]
- Red/white RCA on this LG are component audio inputs, not outputs for headphones. [Elektroda, kazikszach, post #16870071]
Quick Facts
- LG 43UJ620V lacks a 3.5 mm headphone jack; audio out is optical (TOSLINK/S/PDIF) only. [Elektroda, kazikszach, post #16870071]
- Wired headphones need an optical-to-analog converter (DAC); many setups also require a headphone amp. [Elektroda, kazikszach, post #16868534]
- Set Sound: Speakers → External and Digital Audio Out (S/PDIF) → PCM for converters to work. [Elektroda, Polon_us, post #16868920]
- Typical Bluetooth path: 2‑in‑1 BT transmitter (~100 PLN) + BT headphones (~100 PLN); volume adjusts independently. [Elektroda, zbygru, post #17217961]
- Red/white RCA on this LG are component audio inputs, not outputs for headphones. [Elektroda, kazikszach, post #16870071]
Does the LG 43UJ620V have a headphone jack?
No. Users confirmed this model provides only an optical digital audio output and no 3.5 mm headphone socket. "The TV has only an optical audio output, there is no headphone output." [Elektroda, kazikszach, post #16870071]
How do I connect wired headphones to an LG 43UJ620V?
Use an optical (TOSLINK) cable from the TV to a DAC, then feed headphones via a headphone amp or powered speakers with a headphone jack. This hardware path is required because the TV offers digital-only audio out. [Elektroda, kazikszach, post #16868534]
What TV settings make the optical output work with converters?
Open Sound settings. Set Speakers to External and set Digital Audio Out (S/PDIF) to PCM. Then connect the DAC. "TV remote control does not affect the signal level at the optical output." [Elektroda, Polon_us, post #16868920]
Why don’t my volume buttons change headphone loudness over optical?
The TV sends a fixed-level digital signal on S/PDIF. Volume keys won’t change it. Control loudness on your headphone amp, DAC with volume, or receiver. [Elektroda, Polon_us, post #16868920]
Are the red/white RCA on the back audio outputs I can use?
No. Those red/white RCA connectors are component inputs on this LG, not line-level outputs. They won’t feed headphones. [Elektroda, kazikszach, post #16870071]
What’s a DAC, and do I also need a headphone amplifier?
A DAC converts the TV’s optical digital signal to analog. Many DACs output line level and need a separate headphone amplifier for proper volume and drive. [Elektroda, Marco_zg, post #16872027]
Is there a simple Bluetooth solution that works?
Yes. One user used a 2‑in‑1 Bluetooth transmitter (about 100 PLN) and budget headphones (about 100 PLN). It worked for weeks with independent volume control. [Elektroda, zbygru, post #17217961]
Why won’t my Bluetooth headphones pair directly with the TV?
Even TVs with Bluetooth may fail to pair with certain headphones or profiles. An external Bluetooth transmitter avoids these compatibility gaps. [Elektroda, zbygru, post #17217961]
How do I stop HDMI‑ARC/CEC from interfering with optical audio?
Disable Simplink (LG’s CEC) and ARC in settings if you use the optical output. This prevents routing conflicts and audio switching issues. [Elektroda, Polon_us, post #16868920]
How can I add volume control to an optical headphone setup?
Use a DAC with a volume knob, a dedicated headphone amp, or route DAC output into an amplifier/receiver with a headphone jack for control. [Elektroda, kazikszach, post #16868534]
Can I take audio from my receiver or stereo instead of the TV?
Yes. Send audio from your source or TV into a stereo/AV receiver (AUX). Plug headphones into the receiver’s jack for adjustable volume. [Elektroda, zdzich42, post #16868898]
My LG 47LF65 has a headphone port but no sound. What should I check?
Open the audio menu and look for a setting to switch between speakers and headphones. Ensure headphones are fully inserted and not muted. [Elektroda, zdzich42, post #20207960]
What model information should I share when asking for help?
Always provide the exact TV model (e.g., 43UJ620V). Helpers asked for it because outputs and menus vary by model and year. [Elektroda, Pedros050, post #16868113]
Quick 3‑step: How do I enable optical audio on LG for a DAC?
- In Sound, set Speakers to External.
- Set Digital Audio Out (S/PDIF) to PCM.
- Connect the optical cable to your DAC and test. [Elektroda, Polon_us, post #16868920]
Edge case: I connected a converter but still hear silence. What now?
Confirm S/PDIF is set to PCM, not bitstream. Disable ARC/Simplink. Then test with known-good optical cable and DAC power. Volume remains fixed at the TV. [Elektroda, Polon_us, post #16868920]
What’s a budget path to private listening without amps and wires?
Use a 2‑in‑1 Bluetooth transmitter on your audio chain and pair Bluetooth headphones. Reported working cost: about 200 PLN total. [Elektroda, zbygru, post #17217961]
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