LG 40LH5300 Service Manual page 12

5.2. Tool Option setting & Inspection per
countries
5.2.1. Overview
(1) Tool option selection is only done for models in Non-USA
North America due to rating
(2) Applied model: LA57A Chassis applied to CANADA and
MEXICO
5.2.2. Country Group selection
(1) Press ADJ key on the Adj. R/C, and then select Country
Group Menu
(2) Depending on destination, select US, then on the lower
Country option, select US, CA, MX.
Selection is done using +, - KEY
(3) Using DFT(Auto)
* PC (for communication through RS-232C) -> UART Baud
rate : 115200 bps
- Command : ah 00 00 DATA(Area Number(hexadecimal))
DATA(Area Number)
ITEM
0
1
AREA OPTION1
2
5.2.3. Tool Option Inspection
- Method : Press Adj. key on the Adj. R/C, then select Tool
option.
5.3. Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode.
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
6. GND and HI-POT Test
6.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition.
6.2. GND & HI-POT auto-check
(1) Pallet moves in the station.(POWER CORD / AV CORD is
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process(Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next
process automatically.
AREA
6.3. Checkpoint
USA
(1) Test voltage
CANADA
1) 3 Poles
MEXICO
2) 2 Poles
(2) TEST time: 1 second
(3) TEST POINT
1) 3 Poles
2) 2 Poles
(4) LEAKAGE CURRENT: At 0.5 mArms
7. Audio
7.1. Audio input condition
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
7.2. Specification
Item
Audio practical max
Output, L/R
(Distortion=10% max
Output)
- 12 -
- GND: 1.5 KV/min at 100 mA
- SIGNAL: 3 KV/min at 100 mA
- SIGNAL: 3 KV/min at 100 mA
- GND Test = POWER CORD GND and SIGNAL
CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
- Hi-pot Test = Accessible Metal and LIVE & NEUTRAL.
Min Typ Max Unit
4.5 5.0 6.0 W
6.0 6.3 6.9 Vrms
Remark
(1) Measurement condition
- EQ/AVL/Clear Voice: Off
(2) Speaker (6Ω Impedance)
LF54 Series
LGE Internal Use Only