LG 86UH5C, Service Manual, Page: 10 / 50

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Only for training and service purposes
ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to LW68E Chassis applied all of Sig-
nage Monitors manufactured in SIGNAGE SET 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 °C ± 5 °C of temperature and 65 % ± 10 % of relative
humidity if there is no specific designation.
4) The input voltage of the receiver must keep AC 100-240
V~, 50/60 Hz.
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.
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.
Caution) When still image is displayed for a period of 20 min-
utes 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 PCB check process
▪ Adjust RGB (ADC)
▪ EDID/DDC download
▪ MAC Address Download
- 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-Star Menu 1.AD-
JUST CHECK.
3.2. Final Assembly adjustment
▪ White Balance adjustment
▪ RS-232C functionality check
▪ PING Test
▪ Factory Option setting per destination
▪ Ship-out mode setting (In-Stop)
3.3. Etc.
▪ Ship-out mode
▪ Service Option Default
▪ Tool option menu, USB Download(S/W Update, Option,
Service only)
▪ ISP Download(Option)
4. Automatic Adjustment
4.1. MAC address & HDCP2.2 D/L
4.1.1. Equipment & Condition
1) Play file: keydownload.exe
4.1.2. Communication Port connection
1) Key Write: Com 1,2,3,4 and 115200 (Baudrate)
2) Barcode: Com 1,2,3,4 and 9600 (Baudrate)
4.1.3. Download process
1) Select the download items.
2) Mode check: Online Only
3) Check the test process : DETECT -> MAC -> HDCP2.2
4) Play: Press Enter key
5) Check of result: Ready, Test, OK or NG
4.1.4. Communication Port Connection
1) Connect: PCBA Jig → RS-232C Port == PC → RS-232C
Port
4.1.5. Key Download
4.3. LAN Inspection
4.3.1. Equipment & Condition
▪ Each other connection to LAN Port of IP Hub and Jig