Sampo SC-29FAS, Service Manual

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Alignment Procedure
Table of Content
1.
GENERAL
...................................................................................................................................... 10
1.1 COMMON INFORMATION ................................................................................................................... 10
1.2 HOW TO ENTER&EXIT FACTORY MODE (SERVICE MENU, SERVICE MODE) .............................. 10
1.3 A FEW SPECIAL MODES..................................................................................................................... 10
2.
ALIGNMENT PROCEDURES:
........................................................................................................ 11
2.1 B+ VOLTAGE ADJUSTMENT................................................................................................................ 11
2.2 CRYSTAL OSCILLATOR FREQUENCY ADJUSTMENT.......................................................................
2.3 RF AGC ADJUSTMENT ........................................................................................................................
2.4 SCREEN & FOCUS VOLTAGE ADJUSTMENT ....................................................................................
2.5 WHITE BALANCE ADJUSTMENT (NORMAL) .....................................................................................
2.6 ADJUSTMENT OF SUB-BRIGHTNESS................................................................................................
2.7 PICTURE GEOMETRIC ADJUSTMENT............................................................................................... 12
2.8 EHT/HEW RATIO TEST
： （
TEST WITH PC PROGRAM
）
.............................................................. 13
2.9 X RAYS OVER VOLTAGE PROTECTING CIRCUIT TEST................................................................. 13
2.10 PS LINE POLARITIES TEST ............................................................................................................ 14
2.11 PS POWER TEST ............................................................................................................................. 14
2.12 HIGH VOLTAGE AND IB VALUE LIMIT TEST( RANDOM TEST ) .................................................... 14
2.13 HEATER VOLTAGE TEST ( RANDOM TEST ) ................................................................................... 15
2.14 MAIN FUNCTION TEST (EG, NICAM, BTSC, TELTEXT AND ETC.) ................................................. 15
3.
EEPROM DATA AND ADDRESS
................................................................................................. 15
4.
WHITE BALANCE ADDRESS
................................................................................................... 15
5.
CDRH DOCUMENT ( IF AVAILABLE)
........................................................................................ 20
6.
REMARK
........................................................................................................ ....................... 2 0
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