LG 32LC52 Service Manual

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15. HDMI mode
Is only video
normal?
Is only audio
normal?
No
Yes
Download EDID data each port.
Check the TMDS line wave.
(R312~E3273)
1. Check the HDMI receiver’s status register. (0x60, offset 0x66)
- If the value is 0xf or 0x8, it is normal.
2. Check the HDCP register. (0x6, offset 0x32)
- Enable bit 6 : HDCP key loaded
- Enable bit 5 : HDCP decryption active
- Enable bit 4 : HDCP authentication attempted
Reset TMDS power down/ on register.
- 0x60, offset 0x3f => 0xff
Check HDMI source.
Change to another source or cable.
Yes
Is the wave
continuous?
Normal video,
Normal audio?
No
Yes
Replace the IC303.
No
1. Check TV input mode.
(HDMI 1 port support HDMI and DVI.
So if you input DVI signal and PC audio from
phone jack, You can hear PC audio.)
2. Unplug and plug in the HDMI cable.
(sometimes ESD surge occurred at HDMI port.)
3. Check the HDMI Mute register. (0x68, offset 0x37)
4. Check the Audio-out channel mute register (0x68,
offset 0x32) is appropriately enabled.
Yes
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1/12/2013
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LG 32LC52 Specifications

General

Display diagonal	32 \
Display brightness	500 cd/m²
Display resolution	1366 x 768 pixels
Display technology	LCD
Native aspect ratio	16:9
Contrast ratio (typical)	5000:1
Audio (L/R) in	2
SCART ports quantity	1
Component video (YPbPr/YCbCr) in	3
Product color	Black
Power consumption (typical)	180 W
Tuner type	Analog

Weight and Dimensions

Weight (without stand)	13700 g