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LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
9. Check Commercial features
9.1. External SPK Out
9.1.1. Equipment & Condition
▪ Jig (Speaker out JIG) or Oscilloscope
9.1.2. Check the speaker out
(1) Connect external speaker to speaker out port with phone
jack on TV side as below.
(2) Check the Max. speaker output is 1W or not. Sine wave
with 1KHz will be displayed.
(3) Press Vol. control button up/down in turns and check the
waveform of Oscilloscope.
9.2. IR Out & DC Power Outlet(5V/12V)
9.2.1. IR Out Equipment & Condition
▪ Simple Jig (commercial check JIG)
▪ Power only mode
(1) Connect each other RS232C port on the Commercial
Check JIG
(2) Press any key on SVC Remote-control
(3) Check the LED status of the Check JIG.
- IR LED(OK condition: blinking) (LED #1)
9.2.2. DC Power Outlet Equipment & Condition
▪ Simple Jig (commercial check JIG)
(1) Connect JIG for inspection to RS-232C port on TV as
below.
(2) Enter the Configuration Setup mode in pressing Remote
control keys.
The method to enter Configuration Setup mode IN-START
→ MENU → Configuration Setup → OK
1) Select 5V DC Power Outlet and change the setting : Off
→ 5V. After that, check LED color in JIG.(LED #1)
2) After checking 5V DC Power Outlet, change the setting :
5V → Off
3) Please check 12V DC Power Outlet in the same
procedure.
▪ Power only mode
1) Connect JIG for inspection to RS-232C port on TV
2) Press red key on SVC Remote control with etc key.
3) Check the LED status of check JIG.
- LED status of the check JIG (5V -> 12V -> Off)
Commercial Feature
inch
IR Out
DC Power
Out
(5V/12V)
Ext
SPK
Out
RJP
(RJ-45
interface)
Pro:Idiom b-LAN
32/40/43/
49/55
O
O
O
X
O
X
Button of Vol. control
Waveform of Oscilloscope
UP(+)
DOWN(-)
Summary of Contents for 49LX761H
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