LCD TV SERVICE MANUAL - diagramas.diagram...
LCD TV SERVICE MANUAL - diagramas.diagram...
LCD TV SERVICE MANUAL - diagramas.diagram...
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19. HDMI mode<br />
Yes<br />
Down load EDID data each port.<br />
Is normal on ly video ?<br />
1. Check <strong>TV</strong> input mode.<br />
(HDMI1 port support HDMI and DVI.<br />
So if you inpu t D VI signal and PC audio from phone jac k,<br />
You can hear PC audio. )<br />
2. Unplug and plug HDMI ca ble.<br />
(sometimes ESD surge occurred at HDMI port.)<br />
3. Check HDMI Mute re gister. (0x 68, offset 0x37)<br />
4. Check Audio- ou t channel mute reg ister (0x68 , offse t 0x32)<br />
is appropriately enabled .<br />
No<br />
Yes<br />
Is normal on ly audio?<br />
No<br />
Check TMDS line wave.<br />
(R1215 ~ R1222/ R1226 ~ R1233)<br />
Copyright © 2007 LG Electronics. Inc. All right reserved.<br />
Only for training and service purposes<br />
No<br />
Check HDMI source . Change another source or cab le.<br />
Is wave continuous?<br />
- 23 -<br />
Yes<br />
1. Check HDMI receiver’s status register. (0x60, offset 0x06)<br />
- If the value is 0xf or 0x8, it is normal.<br />
2. Check HDCP reg iste r. (0 x60, offset 0x32 )<br />
- Enabl e bit 6: HDCP key loaded<br />
- Enable bit 5: HDCP decryption active<br />
- Enable bit 4: HDCP authen. attempted<br />
Replace IC1200<br />
No<br />
Normal video ,<br />
Normal aud io?<br />
Reset TMDS power down /on register .<br />
- 0x60, offse t 0x 3f : 0xf 7 => 0xff<br />
LGE Internal Use Only
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