LG E700S Service Manual - Page 17
Trouble In H-linearity
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5. TROUBLE IN H-LINEARITY UNBALANCED OF H-LIN. CHECK IC401 PIN 5, 6, 7 ? YES CHECK Q711~Q716? YES CHECK L703? YES TROUBLE IN C722, C723, C726, C729 NO TROUBLE IN IC401 (MICOM) NO TROUBLE IN Q711 ~ Q716 NO TROUBLE IN L703 Cs SIGNAL TABLE HORIZONTAL FREQUENCY(fH) Cs1 30K ~ 33.9K L 34K ~ 38.9K L 39K ~ 44.9K H 45K ~ 48.9K L 49K ~ 57.9K H 58K ~ 65.9K L 66K ~ 70K H Cs2 Cs3 L L H L H L L H L H H H H H - 17 -
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5. TROUBLE IN H-LINEARITY
UNBALANCED OF H-LIN.
CHECK
IC401
PIN 5, 6, 7 ?
CHECK
Q711~Q716?
CHECK
L703?
TROUBLE IN
IC401 (MICOM)
TROUBLE IN
Q711 ~ Q716
TROUBLE IN
L703
TROUBLE IN
C722, C723, C726, C729
NO
NO
NO
YES
YES
YES
Cs SIGNAL TABLE
HORIZONTAL
FREQUENCY(fH)
30K ~ 33.9K
34K ~ 38.9K
39K ~ 44.9K
45K ~ 48.9K
49K ~ 57.9K
58K ~ 65.9K
66K ~
70K
Cs1
L
L
H
L
H
L
H
Cs3
L
L
L
H
H
H
H
Cs2
L
H
H
L
L
H
H