Reference: External Stereo Speaker Setup
The four-contact SPEAKER OUT jack on the LT777H rear panel provides stereo speaker level signal outputs (left +, left -, right +, right -) for a pair of 8 ohm external speakers. Outputs are variable based on the internal speaker volume level. Set Installer Menu item 097 AUDIO OUTPUT as required in accordance with the external audio equipment connected to the TV. Also, refer to the following diagram for pinout details.
Caution: Do NOT plug in a mono or stereo connector, as this may damage the TV.
SPEAKER
OUT (8Ω)
31
42
1EXTERNAL SPEAKER_L+ (Tip)
2EXTERNAL SPEAKER_L- (Ring 1)
3 EXTERNAL SPEAKER_R+ (Ring 2)
4 EXTERNAL SPEAKER_R- (Sleeve)
