Pioneer PRO-720HD Service Manual page 62

1
PRO-720HD, PRO-620HD, PRO-520HD
3.15 VIDEO ASSY (2/2)
A
B
Q5288-Q5290,Q5320:
BLACK EXTENSION
BLOCK (BLACK LEVEL
COMPENSATION)
C
D
E 1/2
E
2/2
62
1
2
Q5341,Q5342:
V. MUTE SIGNAL
ELITE : 0.9Vp-p (4.7V)
R-Y
REGULAR : 1.1Vp-p (4.7V)
ELITE : 0.5Vp-p (3.7V)
B-Y
REGULAR : 0.7Vp-p (3.7V)
NT : 4.1V(PD)+0.7Vop
OTHER : 4.15V(PD)+0.7Vop
Q5307-Q5310 : V. BLK WIDTH EXTENSION for HD
IC5254 : DAC BLOCK
2
3
BLOCK SWITCHING BETWEEN
CCD SIGNAL and OSD SIGNAL
27
28
32
29
E 1/2
3
4
Q5318,Q5319:
BLACK EXTENSION BLOCK
(BLACK LEVEL COMPENSATION)
31
30
IC5251:
Y COLOR DIFFERENCE
= RGB CONVERSION
BLOCK
2.5V(PD)+1.2Vp-p
ABL & ACL BLOCK
4
B