Read LG 70LA8600-SA (CHASSIS:LJ34D) Service Manual online
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3.7.2. LAN PORT inspection (PING TEST)
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and confirm OK Message.
4) remove LAN CABLE
3.8. Camera Port Inspection
(1) Objective : To check PCBA’s CAMERA Port.
(2) How-it-works
i) Connect the PCBA like below Picture.
ii) Send specific RS-232C Command for displaying Camera
Preview.
* CAMERA need to be status of Slide up.
(3) RS-232C Command
RS-232C COMMAND
Explanation
CMD
DATA
ID
Ai
00
23
Camera Function Start.
Ai
00
24
Camera Function End.
4. Total Assembly line process
4.1. Adjustment Preparation
■ W/B Equipment condition
▪ In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15°C for 2
hours
▪ In case of keeping module is in the circumstance of below
-20°C, it should be placed in the circumstance of above 15°C
for 3 hours.
- Purpose : Adjust the color temperature to reduce the
deviation of the module color temperature.
- Principle : To adjust the white balance without the
saturation,Fix the one of R/G/B gain to 192 (default data) and
decrease the others.
- Adjustment mode : Three modes – Cool / Medium / Warm
● Required Equipment
- Remote controller for adjustment
- Color Analyzer : CA100+ or CA-210 or same product (should
be used in the calibrated ch by CS-1000)
▪ LCD TV : CH-9
▪ PDP TV : CH-10
▪ White LED TV : CH-14
▪ ALEF : CH-18
▪ RGB LED(MNT) : CH-16
- Auto W/B adjustment instrument(only for Auto adjustment)
4.1.1. Adjustment of White Balance :
(For Automatic Adjustment)
Connecting diagram of equipment for
measuring (For Automatic Adjustment)
(1) Set TV in ADJ mode using P-ONLY key (or POWER ON
key)
(2) Place optical probe on the center of the display
- It need to check probe condition of zero calibration before
adjustment.
(3) Connect RS-232C Cable
(4) Select mode in ADJ Program and begin a adjustment.
(5) When WB adjustment is completed with OK message,
check adjustment status of pre-set mode (Cool, Medium,
Warm)
(6) Remove probe and RS-232C cable.
▪ W/B Adj. must begin as start command “wb 00 00” , and
finish as end command “wb 00 ff”, and Adj. offset if need
Color Analyzer
Computer
Pattern Generator
※
Signal Source
Probe
RS-232C
RS-232C
RS-232C
※
If TV internal pattern is used, not needed
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