Philips SD-5.31SL Service Manual page 15

5.5 VIDEO
5.5.1 Video Output Check
Measure the DC voltages at all video-outputs at conn 1800
while the video signal is turned off: 1V ± 10%
Generate a color-bar via next software commands:
Ref. # Command Name Remark
23a VideoColDencOn Colourbar DENC ON
61a VideoColOutRGB Set Video out to RGB
61b VideoColOutYUV Set Video out to YUV
23b VideoColDencOff Colourbar DENC/MPEG OFF
Check video output at the next testpoints:
Name Testpoint
R_V F817
G_Y F816
B_U F815
C F819
CVBS F820
PM3380B
ch1
1
CH1 500nV=
Figure 5-15 R_V with video out at RGB
PM3380B
ch1
1
CH1 500mV=
Figure 5-16 G_Y with video out at RGB
Test Instructions Mono Board SD5.31SL
Waveform
Refer to Figure R_V
Refer to Figure G_Y
Refer to Figure B_U
Refer to Figure C_VIDEO
Refer to Figure CVBS_VID
MTB 20.0us ch1+
CL 36532043_069.eps
S TOP
MTB 20.0us ch1+
CL 36532043_062.eps
ch1
ch1
030603
ch1
030603
SD-5.31SL
PM3380B
1-
CH1 500mV= MTB 20.0us
Figure 5-17 B_U with video out at RGB
PM3380B
1
CH1 500mV= MTB 20.0us
Figure 5-18 CVBS_VID
PM3380B
1
CH1 500mV= MTB 20.0us
Figure 5-19 C VIDEO
5. EN 15
ch1+
CL 36532043_050.eps
030603
ch1+
CL 36532043_053.eps
030603
ch1+
CL 36532043_052.eps
030603