Philips LX9000R Service Manual page 55

5.5.7 Nucleus 906: Video User Dealer Loop
Nucleus for testing the components on the video signal system
path:
• The VIP
• The video encoder
• The VSM
• The host decoder
• The analogue board
On the analogue board, the video signal is internally routed
back to the digital board.
NUCLEUS 906: VIDEO USER DEALER LOOP
ANALOGUE BOARD
connector
1947
EPG BOARD
optional
connector
1601
DIGITAL BOARD
7500
VIP
VIP_ICLK: 27MHz
EMPRESS
Figure 5-15
Diagnostic Software DVD
7408
STV6618
connector
1947
connector
1601
7200
STI 5508
7403 7100
VSM
TR 01014_003
130303
LX9000R
5.5.8 Nucleus 907: Video VBI User Dealer Loop
This nucleus tests the components on the video VBI signal
path:
• The VIP
• The VSM
• The Host Decoder
The signal is routed back internally on the analogue board
Remark: this test is only successful if nucleus 121 is carried out
first.
NUCLEUS 907: VIDEO VBI USER DEALER LOOP
ANALOGUE BOARD
connector
1947
EPG BOARD
optional
connector
1601
DIGITAL BOARD
7500
VIP
VIP_ICLK: 27MHz
EMPRESS
Figure 5-16
5. EN 55
7408
STV6618
connector
1947
connector
1601
7200
STI 5508
7403 7100
VSM
TR 01015_003
130303