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LGE Internal Use OnlyCopyright Ā© LG Electronics. Inc. All rights reserved.
Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application
This spec. sheet applies to LA32B Chassis applied LED TV all
models manufactured in TV factory
2. Specification
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 ±5
ĀŗC
of temperature and 65±10% of relative humidity if
there is no specific designation
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz
(5) At first Worker must turn on the SET by using Power Only
key.
(6) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15
ĀŗC
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.
ā» Caution
When still image is displayed for a period of 20 minutes or
longer (especially where W/B scale is strong.
Digital pattern 13ch and/or Cross hatch pattern 09ch), there
can some afterimage in the black level area
3. Adjustment items
3.1. Main PCBA Adjustments
(1) ADC adjustment : ADC adjustment is OTP (Auto ADC)
(2) EDID download : HDMI
ā Above adjustment items can be also performed in Final
Assembly if needed.
Both Board-level and Final assembly adjustment items can
be check using In-Start Menu (1.Adjust Check).
3.2. Final assembly adjustment
(1) White Balance adjustment
(2) RS-232C functionality check
(3) Factory Option setting per destination
(4) Shipment mode setting (In-Stop)
(5) GND and HI-POT test
3.3. Appendix
(1) Shipment conditions
(2) Tool option menu
(3) USB Download (S/W Update, Option and Service only)
(4) Preset CH Information
4. MAIN PCBA Adjustments
* Download
(1) Execute ISP program āMstar ISP Utilityā and then click
āConfigā tab.
(2) Set as below, and then click āAuto Detectā and check āOKā
message
If display āErrorā, Check connect computer, jig, and set.
(3) Click āConnectā tab. If display āCanāt ā, Check connect
computer, jig, and set.
(4) Click āReadā tab, and then load download file(XXXX.bin) by
clicking āReadā
(5) Click āAutoā tab and set as below.
(6) Click āRunā.
(7) After downloading, check āOKā message.