Ikegami HTM-1517R, Service Manual

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1-B-15
(h) VR701 [EDGE BAL]
For TP701, Adjust the upper/lower level of the edge signal.
Adjust level
<VIDEO system (adjustment of RGB component input)>
* Set YPbPr/RGB input format of MENU-1 to RGB.
(a) VR106 [R-Y OFF SET]
VR506 [B-Y OFF SET]
For the test points TP106 (R-Y)/TP506 (B-Y), Adjust signal leakage to minimum value when the
monochrome signal is input respectively to R,G,B.
Minimize
(b) VR101 [R-Y LEVEL]
VR301 [Y LEVEL]
VR501 [B-Y LEVEL]
For the test points TP101(PR)/TP301(Y)/TP501(PB), Adjust the levels of Y, Pb, Pr to 1.3Vp-p.
<SYNC System>
(a) TP903 [CLK1]
TP915 [CLK2]
The clock frequency should be in the vicinity of 13.5 MHz for the various formats.
(b) TP907 [G1]
The following signal should be output.
V rate
BIAS.P
V.BLK H.BLK
H rate
Approx. 12V0-p
Approx. 12V0-p
0V