LG 32LY560M Service Manual page 13

6.3. Option selection per country
6.3.1. Overview
(1) Tool option selection is only done for models in Non-USA
North America due to rating
(2) Applied model : LA4AV/W Chassis is applied in USA
6.3.2. Method
(1) Press ADJ key on the Adj. R/C, then select Country Group
Menu.
(2) Depending on destination, select KR or US, then on the
lower Country option, select US, CA, MX. Selection is done
using +, - KEY
7. GND and HI-POT Test
7.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
7.2. 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
7.3. Checkpoint
(1) Test voltage
- GND: 1.5KV/min at 100mA
- SIGNAL: 3KV/min at 100mA
(2) TEST time: 1 second
(3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE
GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
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Only for training and service purposes
8. AUDIO output check
8.1. Audio input condition
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
(3) RGB PC: 1KHz sine wave signal (0.7Vrms)
8.2. Specification
No Item Min
1 Audio practi- 9.0
cal max
8.5
Output, L/R
(Distor-
tion=10%
4.5
max Output)
6
2 Speaker
(8Ω Imped-
ance)
▪Measurement condition:
(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal 0.4Vrms
(3) RGB PC: 1KHz sine wave signal 0.7Vrms
9. USB S/W Download
(optional, Service only)
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update file in USB Stick
- If your downloaded program version in USB Stick is lower
than that of TV set, it didn't work. Otherwise USB data is
automatically detected.
(3) Show the message "Copying files from memory"
(4) Updating is staring.
- 13 -
Typ Max Unit
10.0 12 W Measure-
ment condi-
8.9 9.8 Vrms
tion
EQ Off
AVL Off
5 6 W
Clear Voice
6.4 6.7 Vrms Off
10.0 14.0 W (1) Measure-
ment
condition
- EQ/AVL/
Clear
5 7 W
Voice:
Off
LGE Internal Use Only
Remark
DRC opera-
tion under
12W
(42LY series)
22/28LY
Series
32/42LY
Series
22/28LY
Series