Acer AC511 SERIES Manuale di servizio - Pagina 17

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1. Specifications

6-5 ABNORMAL HORIZONTAL DEFLECTION

1. ABNORMAL HORIZONTAL WIDTH OF VIDEO

READJUST H-WIDTH FUNCTION

CHECK FBT B+ VOLTAGE

ABOUT 70V AT FH=31KHz

CHECK THE HV OF

CRT ABOUT 24.5KV

2. ABNORMAL HORIZONTAL VIDEO CENTER

CHECK IC401 PIN 4, 7

RELATIVE CIRCUIT

3. ABNORMAL HORIZONTAL LINEARITY

CHECK L401, Q410, Q426

AND IC101 PIN 28, 29

CHECK THE RELATIVE CIRCUIT

OF Q404, Q405, & Q406

CHECK THE RELATIVE

CIRCUIT OF SMPS.