File name Chassis EX-1A2.pdfSERVICE MANUAL
FILE NO. SM-CTV-O-071
COLOR TELEVISION
SERVICE MANUAL
MODEL NO. 21C99/PF21C99
CHASSIS NO. EX-1A/1A1/1A2
ͼ±í 1
Please read this manual carefully before service
PRINTED IN CHINA.AUG .2003 ©
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SERVICE MANUAL
TABLE OF CONTENTS
SPECIFICATIONS··················································································································1
SAFETY INSTRUCTIONS AND MAINTENANCE ········································2
X-RAY RADIATION PRECAUTION ···································································································2
SAFETY PRECAUTION ····················································································································2
PRODUCT SAFETY NOTICE············································································································3
SAFETY SYMBOL DESCRIPTION ···································································································3
MAINTENANCE ·································································································································4
ADJUSTMENTS ······················································································································4
SET-UP ADJUSTMENTS···················································································································4
CIRCUIT ADJUSTMENTS ·················································································································7
CONTROL BUTTONS ····································································································· 13
CONTROL BUTTONS ···················································································································· 13
REMOTE CONTROL ······················································································································ 14
STRUCTURE AND CHASSIS FUNCTION DESCRIPTION ··············· 21
STRUCTURE BLOCK DIAGRAM ··································································································· 21
BLOCK DIAGRAM FOR SUPPLY VOLTAGE SYSTEM ································································· 22
CHASSIS DESCRIPTION··············································································································· 23
SERVICE DATA ···················································································································· 24
TECHNICAL DATA OF KEY ICS····································································································· 24
WAVEFORMS OF KEY POINTS ························· |