Toshiba 36JW9UA Service Manual page 16

Geomagnetic compensation (chassis adjustment)
ADJUSTING ITEMS
AND POINTS
1 Output voltage control
(GMF)
Horizontal adjustment
ADJUSTING ITEMS
AND POINTS
Hori-
DQF output voltage
zontal adjustment
Conditions: User control for geomagnetic compensation: 0
Geomagnetic compensation coil: Unconnected
Perform voltage measurement at both ends of RJ06 and adjust the volt-
age to the following adjustable value with GMF of data adjustment mode:
0 ± 1V
* DQF adjustment shall be made in PAL WIDE mode.
Measure the terminal voltage waveform of test pin (DF terminal) with 100:1 probe and
adjust the terminal voltage using L451 (horizontal amplitude coil: TLN2110AD).
Vp-p
Adjust the above waveform by turning the core of L451 so as to obtain the following
voltage:
36": 1350 Vp-p
Note: Because the vertical cycle parabolic waveform is also of superposition, the
above voltage value shall be measured on the waveform.
Adopted signal: PAL E-12ch
ADJUSTMENT PROCEDURE
ADJUSTMENT PROCEDURE
1H
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