Bad Hdmi Video / Audio Output - LG BD630N Service Manual

5. BAD HDMI VIDEO / AUDIO OUTPUT

When unit is connected to HDMI TV using HDMI cable, picture shows bad color,
no output or mixed color on the screen. But component output is OK.
5-1. JK803
5-1-1. Solution
Replace JK803 (HDMI Jack)
5-1-2. How to troubleshoot (Countermeasure)
1) Check JK803 pin soldering.
2) If there is short soldering on pin JK803, re-soldering pin JK803.
3) If problem still occurs, check HDMI data on RN801 and RN802 :
- If all data OK, replace JK803.
- If data NG, check set on BD Mode:
Replace IC501.
5-1-3. Service hint (Any picture / Remark)
JK803
RN801/RN802
TP_TX_P
TP_TX_N
TP_RX_P
TP_RX_N
ONE POINT REPAIR GUIDE
IC501
MEDIATEK
MT8550LBAG
3-42
IC501
AUDIO_SPDIF
CEC
HPD
H_SCL
H_SDA
HDMI_CLK_N, HDMI_CLK_P
HDMI_0_N, HDMI_0_P
HDMI_1_N, HDMI_1_P
HDMI_2_N, HDMI_2_P
CBVS and Audio Jack
Coaxial JACK
HDMI JACK