Horizontal Raster Centering - Tatung OMNISCAN SERIES Service Manual

6.22 CENTERING
HORIZONTAL RASTER CENTERING
CHECK HORIZONTAL
RASTER CENTERING
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SELECT P202, P203, P204 (BOTH DIRECTION)
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FOR OPTIMUM HOR. CENTERING
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HORIZONTAL RASTER CENTERING
6.23 PICTURE CENTERING (HOR. PHASE)
HOR. CENTERING
CIRCUIT
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R223, 0206, 0207, L202(PWB-1701)
C209, R224, R225, T201
CONNECTOR P202, P203, P204,. P403
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HOR. CENTERING CIRCUIT
: 0402a, C415, 0404, 0423, C412
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C404, R428, C413, R451, 0402
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0403, R446, R445
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(PWB-1701)
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r---------------------------------->
MICROPROCESSOR H. PHASE
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0501, C504, R511, R506. R501
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R597, P501 (PWB-1697-2)
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~-------------------------------->
CHECK F
IV
CIRCUIT
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0400, C440 (PWB-1701)
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0400a-0400c
0401a-0401c
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r------------------------------->
CHECK HOR. SYNC. CIRCUIT (PWB-1701)
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0407, R436. R429, R426, R427
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1"""------------------------->
CHECK HOR. AFC CIRCUIT (PWB-1701)
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C438, R430. R431
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C408. C407
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~----------------------------->
READJUST HOR. CENTERING
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(SEE ALIGNMENT)
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READJUST HOR. OSC (FREE-RUN)
R422, R413. R420 (PWB-1701)
=6-21
=