LG 55EA8800, Service Manual

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Only for training and service purposes
5.7. PIP/ W&R Function Inspection
(1) Objective : To check the connection between sub tuner and
PCBA, and their Function
(2) Test Method : This Inspection is available only Power-Only
Status.
1) Press exit key of the Adj. R/C and Press PIP key.
2) Check that the SUB TUNER pop up window on the TV
Set.
3) Check that the normal operation (picture, sound) of DTV
on the TV Set.
5.8. 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
6. AUDIO output check
6.1. 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)
6.2. Specification
No Item Min Typ Max Unit Remark
1 Audio
practical
max Output,
L/R
(Distor-
tion=10%
max Output)
9.0
8.5
10.0
8.9
12.0
9.9
W
Vrms
(1) Measurement
condition
- EQ/AVL/Clear
Voice: Off
(2) Speaker (8Ω
Impedance)
6.3. Audio Output Inspection
(1) INPUT CHECK –S KEY OF ADJUST REMOTE
CONTROLLER TO INSPECT SPEAKER
(2) When you click the first, the output volume of left & right
main speakers must be 50
(3) When you click the second, the output volume of left & right
main speakers must be 80.
(4) When you click the third, the output volume of left & right
main speakers must be 100.
(5) When you click the fourth, the output volume of left main
speaker must be 50.
(6) When you click the fifth, the output volume of right main
speaker must be 50.
(7) When you click the sixth, the output volume of left sub
speaker must be 100.
(8) When you click the seventh, the output volume of right sub
speaker must be 100.
(9) When you click the eighth, the output volume of all
speakers (left & right main speaker and left & right sub
speaker) must be 30.