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LG 710E Service Manual

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    Page 21

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    Page 24

    Page 24 CHECK Q953 COLLECTOR VOLTAGE (0.5V)? CHECK P902? CHECK RL901? CHECK IC401 PIN 4 (5V)? 6. NO DEGAUSSING NO DEGAUSSING NO NO NO NO TROUBLE IN TH901, DEGAUSSING COIL TROUBLE IN IC401 (MICOM) TROUBLE IN D953 TROUBLE IN P902 TROUBLE IN RL901 YES YES YES YES - 24 - 
    CHECK
Q953 COLLECTOR 
VOLTAGE (0.5V)?
CHECK
P902?
CHECK
RL901?
CHECK
IC401 PIN 4 (5V)?
6. NO DEGAUSSING
NO DEGAUSSING
NO
NO
NO
NO
TROUBLE IN 
TH901,
DEGAUSSING COIL
TROUBLE IN 
IC401 (MICOM) 
TROUBLE IN
D953
TROUBLE IN
P902
TROUBLE IN
RL901
YES
YES
YES
YES
- 24 -

    Page 25

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    Page 26

    Page 26 - 26 - 5. TROUBLE IN H-LINEARITY UNBALANCED OF H-LIN. CHECK IC401 PIN 11, 12, 13 ? 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 ~ 43.9K 44K ~ 48.9K 49K ~ 51.9K 52K ~ 57.9K 58K ~ 61.9K 62K ~ 65.9K 66K ~ 71KCs1 L L H H H H H H HCs3 L L L H L L L H H Cs2 L H L L H H H H H 
    - 26 -
5. TROUBLE IN H-LINEARITY
UNBALANCED OF H-LIN.
CHECK
IC401
PIN 11, 12, 13 ?
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 ~ 43.9K
44K ~ 48.9K
49K ~ 51.9K
52K ~ 57.9K
58K ~ 61.9K
62K ~ 65.9K
66K ~ 71KCs1
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    Page 27

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