134 | Chapter 2 - Installation |
| Video |
2.4 - VIDEO
The various adjustments are made on the «GENLOCK/VIDEO» board.
2.4.1 - Selection of composite video output standard
This selection is made using J91. Connect the link to the position corresponding to the «PAL BGH 625L» or «NTSC 525L» standard. The other standards are not available at present.
2.4.2 - TEST selector switches
Selector switches S170 and S171 enable various tests to be performed on the equipment.
S170: Depends on the Z160 soft version:
•Soft ≤ 47017011/C (identified 011/C on the circuit). On the «TEST» position, a bar pattern is generated by the «GENLOCK/VIDEO» board on all the Channel Control Unit video outputs (digital and composite).
•Soft ≥ 47017011/D (identified 011/D on the circuit). The S170 switch change the range variation of the thumbwheels «ΦH COARSE» and «FH FINE. Refer to the 2.5 - Equipment phase alignment with a digital installation paragraph.
S171: On the «Y» position, only the Y luminance signal is present on all the video outputs of the Channel Control Unit (digital and composite) of the equipment; the chrominance is cut off.
In operation, selector switches S170 (Soft ≤ 47017011/C) and S171 shall be set to the «NORMAL» position.
Z160
J91
NTSC
PAL BGH 6251
S170 S171
GENLOCK / VIDEO PCB
THOMSON TTV1707 / CCU DT500 | B1707M00LD |
User manual | September 2000 |
