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No horizontal deflection – LG 773N User Manual

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4. NO HORIZONTAL DEFLECTION

NO H-DEFLECTION

(ONE VERTICAL LINE)

CHECK

Q706?

CHECK

B+ VOLTAGE

(50V)?

CHECK

T701(FBT) PIN 2

(31KHZ 60V,

69KHZ 140V) ?

CHECK

Q705 COLLECTOR

WAVEFORM?

TROUBLE IN
Q706

TROUBLE IN
50V LINE

TROUBLE IN
Q719, Q703, Q704, D710

TROUBLE IN
Q705

TROUBLE IN
T701, P701

NO

NO

YES

YES

YES

YES

NO

NO

0V

T