Panasonic TX-34P150X Service Manual page 15

Md3a chassis
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Item/Preparation
1. Receive SECAM white pattern.
2. Connect oscilloscope to A44 pin 39.
3. Set controls: / BRT................CENTER / COLOUR........CENTER /
CONTRAST....MAX / AI....................OFF
5.7. VRS ADJUSTMENT
1. PREPARATION
A. Set DY to CRT not to tilt Up and Down and Left and Right
deflection. (Fig. 1)
B. Set CY to CRT and set CY magnet primarily. / Pur Mg : Set Pur
Mg that 2 magnets are vertical position. / VRS Mg : Set VRS Mg
that 2 magnets are side position.
C. Set geomagnetic correction DAC [0].
2. ADJUSTMENT
A. Receive the white balance pattern.
B. Adjust V-CENTER.
C. Set R,B CUT OFF to minimum (0), and set G CUT OFF to center
(511).
D. Receive the aging pattern.
E. Set 2 magnets of vertical position to Up and Down equally so
that it will be at center part of CRT. (Fig. 3)
1. Adjust SECAM B-Y so that H-blanking time and colour center
level.
Fig. 6
2. Connect oscilloscope to A44 pin 41.
3. Adjust SECAM R-Y OUT so that H-blanking time and colour centre
equal level.
Fig. 7
4. Connect oscilloscope to A44 pin 39.
5. Receive SECAM white pattern on both Main and Sub picture.
6. Adjust Sub SECAM B-Y so that H-blanking time and colour center
equal level.
Fig. 8
7. Connect oscilloscope to A44 pin 41.
8. Adjust Sub SECAM R-Y so that H-blanking time and colour center
equal level.
Fig. 9
Fig. 1
Adjustment Procedure

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