Philips DVDR1000/001 Service Manual page 57

5.5.5 Nucleus 904: System Video 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 will be routed to the
SCART (EUROPE) or CINCH (NAFTA). There it will be
looped back externally by means of the proper cable
SCART AUX
ANALOGUE BOARD
connector
1954
connector
1601
DIGITAL BOARD
7552
VIP
VIP_ICLK: 27MHz
AUDIO ENCODER
Figure 5-13
Diagnostic Software and Faultfinding Trees
NUCLEUS 904: SYSTEM VIDEO LOOP
SCART TV
7507
STV6410
connector
1954
connector
1601
7202
STI 5505
7703
7100
VSM
7410
EMPIRE
CL 16532095_079.eps
DVDR1000 /0x1 /691
5.5.6 Nucleus 905: System Video VBI Loop
This nucleus tests the components on the video signal path:
• The VIP
• The VSM
• The Host Decoder
The video CVBS signal is routed to the output of the
analogue board where it will be looped back by means of an
external cable
SCART AUX
VIP
170801
5.
NUCLEUS 905: SYSTEM VIDEO VBI LOOP
ANALOGUE BOARD
7507
STV6410
connector connector
1954
connector connector
1601
DIGITAL BOARD
7552
VIP_ICLK: 27MHz
7703
AUDIO ENCODER
7410
EMPIRE
Figure 5-14
GB 57
SCART TV
1954
1601
7202
STI 5505
7100
VSM
CL 16532095_080.eps
150801