AVIC-F900BT/XS/EW5
59
5
6
7
8
5
6
7
8
C
D
F
A
B
E
Check 11: Is the video circuit OK?
<Outline> Composite signal and component signal are output from DVD-LSI (IC1501), and are output from the
HOST I/F (CN1901) via a buffer circuit.
CN1901
HOST I/F
AVCC5
Composite
Component Y
Component Cb
Component Cr
COMPO
Fig 11.1: Video circuit
<Checking method> Playback DVD-REF-A1 TITLE2 CHAPTER5 (WHITE 100%), and monitor COMPO signal with
an oscilloscope with GNDV1 (stylus) being the reference. Set the trigger mode to “TV trigger” and
the trigger line to “150 line”.
Video buffer circuit
NoMount
IC1501
DVD_LSI
Video
DAC
section
NO.
Check point 1 (stylus)
Specification value
Reference waveform
1
COMPO
1 000 mVpp ± 5 %
Waveform 6
In case of NG, check the applicable line, the periphery of the major components in the drawing above, soldering of the
peripheral components and defective components.
PEAK
COMPO signal
Reference
value
Color burst
Pedestal level
BOTTOM
Horizontal sync signal
Fig 11.2: Waveform for the case of composite white 100% output
<Video level readjustment method>
In case the video composite output is outside of the specification value, readjust the level according to the method
described below.(Note : Units are exchanged, the video output is not adjusted. )
Turn the volume (VR1671) to adjust the video level within the range of 1.0 ± 0.02 Vpp.
The adjustment specification is 1.0 ± 0.02 Vpp.
Adjust this level within the
range of 1.0 ± 0.02 Vpp.
AVCC5
Fig 11.3: Video circuit (component)
Q1702(NoMount)
Video buffer circuit
Q1701(NoMount)
Video buffer circuit
Q1704(NoMount)
Video buffer circuit
CN1901
HOST I/F
Y
Y
Cb
Cb
Cr
Cr
IC1501
LSI
Video
DAC
section
Содержание AVIC-F900BT/XS/EW5
Страница 8: ...AVIC F900BT XS EW5 8 1 2 3 4 1 2 3 4 C D F A B E 2 SPECIFICATIONS 2 1 SPECIFICATIONS ...
Страница 9: ...AVIC F900BT XS EW5 9 5 6 7 8 5 6 7 8 C D F A B E 2 2 DISC CONTENT FORMAT ...
Страница 10: ...AVIC F900BT XS EW5 10 1 2 3 4 1 2 3 4 C D F A B E 2 3 PANEL FACILITIES ...
Страница 11: ...AVIC F900BT XS EW5 11 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 12: ...AVIC F900BT XS EW5 12 1 2 3 4 1 2 3 4 C D F A B E ...
Страница 13: ...AVIC F900BT XS EW5 13 5 6 7 8 5 6 7 8 C D F A B E 2 4 CONNECTION DIAGRAM ...
Страница 14: ...AVIC F900BT XS EW5 14 1 2 3 4 1 2 3 4 C D F A B E ...
Страница 19: ...AVIC F900BT XS EW5 19 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 31: ...AVIC F900BT XS EW5 31 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 111: ...AVIC F900BT XS EW5 111 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 114: ...AVIC F900BT XS EW5 114 1 2 3 4 1 2 3 4 C D F A B E 9 2 EXTERIOR 1 AVIC F900BT XS EW5 C A B B C D D E E A 21 ...
Страница 118: ...AVIC F900BT XS EW5 118 1 2 3 4 1 2 3 4 C D F A B E 9 4 EXTERIOR 3 21 A ...
Страница 157: ...AVIC F900BT XS EW5 157 5 6 7 8 5 6 7 8 C D F A B E C b C a C a 1 2 C b1 2 CWW1465 ...
Страница 159: ...AVIC F900BT XS EW5 159 5 6 7 8 5 6 7 8 C D F A B E 2 2 C 1 2 C 1 2 C 1 2 C DVD CORE UNIT 2 2 2 2 C CN702 4 6 A 1 2 C ...
Страница 161: ...AVIC F900BT XS EW5 161 5 6 7 8 5 6 7 8 C D F A B E ...
Страница 171: ...AVIC F900BT XS EW5 171 5 6 7 8 5 6 7 8 C D F A B E C SIDE A 0 50 60 70 80 90 A CN702 UNIT E ...
Страница 172: ...AVIC F900BT XS EW5 172 1 2 3 4 1 2 3 4 C D F A B E C C DVD CORE UNIT 50 60 70 80 90 D ...
Страница 173: ...AVIC F900BT XS EW5 173 5 6 7 8 5 6 7 8 C D F A B E C SIDE B 0 10 20 40 30 50 10 20 30 40 50 60 70 80 X Y ...