Diagnostic Software
EN 76
DVDR880-890 /0X1
5.
5.5.3
Nucleus 902: Digital Video Loop
A colourbar generated in the host decoder is looped through
the VIP, Empire, and VSM and checked again in the host
decoder. The following components are tested on the video
signal path:
•
VIP
•
Empire
•
VSM
•
Host decoder
Figure 5-11
5.5.4
Nucleus 903: Digital Video VBI Loop
Nucleus for testing the components on the video VBI signal
path:
•
The VIP
•
The VSM
•
The Host Decoder
This is done by using the internal test signal source (digital
board only)
Remark: this test is only successful if nucleus 121 is carried out
first.
Figure 5-12
NUCLEUS 902: DIGITAL VIDEO LOOP
VIP
STI 5508
VSM
EMPRESS
DIGITAL BOARD
ANALOGUE BOARD
STV6618
VIP_ICLK: 27MHz
7500
7408
7403
7200
7100
TR 01010_001
080502
NUCLEUS 903: DIGITAL VIDEO VBI LOOP
VIP
STI 5508
VSM
EMPRESS
DIGITAL BOARD
ANALOGUE BOARD
STV6618
VIP_ICLK: 27MHz
7500
7408
7403
7200
7100
TR 01011_001
080502
Summary of Contents for DVDR880/001
Page 48: ...Mechanical Instructions EN 50 DVDR880 890 0X1 4 4 5 Dismantling Instructions Figure 4 14 ...
Page 166: ...Circuit IC Descriptions and List of Abbreviations EN 168 DVDR880 890 0X1 9 ...
Page 167: ...Circuit IC Descriptions and List of Abbreviations EN 169 DVDR880 890 0X1 9 ...
Page 174: ...Circuit IC Descriptions and List of Abbreviations EN 176 DVDR880 890 0X1 9 IC7411 ...
Page 182: ...Circuit IC Descriptions and List of Abbreviations EN 184 DVDR880 890 0X1 9 ...
Page 183: ...Circuit IC Descriptions and List of Abbreviations EN 185 DVDR880 890 0X1 9 ...
Page 184: ...Circuit IC Descriptions and List of Abbreviations EN 186 DVDR880 890 0X1 9 ...
Page 203: ...Circuit IC Descriptions and List of Abbreviations EN 205 DVDR880 890 0X1 9 ...