LG 32LH7000 User Manual

LGE Internal Use OnlyCopyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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1. TV/CATV doesn’t display
TROUBLESHOOTING
2. DTV doesn’t display
Check th e outp ut data of IC104 in th e Jack
Board Pin52.
Can you see the normal sign al?
NO
Could you measu re voltag e of IC104 in the
Jack Bo ard & IIC lin es?
Are they all normal?
NO
You shou ld ch eck p ower lin e
& IIC li nes.
YES
You shou ld rep lace Jack Bo ard.
YES
Check th e output of Main IC(IC100).
Especially you sh ould ch eck
The H,V sync and c lock.
Can you see the normal waveform?
YES
NO
After ch eckin g the Power of Main IC(IC100) you
should decide to replace Main IC or not .
This bo ard has big problem because Main
IC(IC100) have some troubles.
After c hecking thoro ugh ly all pa th onc e again,
You shou ld decid e to rep lace Main Bo ard or no t.
Check IC104.
Can you see the normal signal?
Check the output of TRQ105 in the Jack
Board.
Can you see the normal waveform?
Check the output of Main IC(IC100).
Especially you sh ould ch eck
The H,V sync and cloc k.
Can you see the normal waveform?
YES
YES
NO
Could you measu re voltag e of IC104 in the
Jack Bo ard & IIC lin es?
Are they all normal?
YES
NO
You shou ld check power line
& IIC lines.
YES
You should rep lace Jack Board.
NO
You shou ld decid e to rep lace
TR Q105 in the Jack Board
or not.
NO
After checking the Power of Main IC(IC100) you
should decide to replace Main IC or not .
This bo ard has big problem because Main
IC(IC100) have some troubles.
After checking thoroughly all path once again,
You shou ld decide to rep lace Main Bo ard or not.
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LG 32LH7000 Specifications

General

Audio system	SRS Trussurond
RMS rated power	14 W
Speakers	4
Number of AV connections	1
PC in (D-Sub)	Yes
HDMI ports quantity	3
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Product color	Black
LED indicators	Stand-by
Audio formats supported	MP3
Display diagonal	32 \
Display brightness	500 cd/m²
Native aspect ratio	16:9
Contrast ratio (dynamic)	80000:1
Power consumption (standby)	1 W
Power consumption (typical)	150 W

Weight and Dimensions

Depth (with stand)	284.8 mm
Width (with stand)	803 mm
Height (with stand)	632.9 mm
Weight (with stand)	13500 g
Depth (without stand)	75 mm
Height (without stand)	584.2 mm
Weight (without stand)	11600 g