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5-10. SCHEMATIC DIAGRAM – VIDEO Board – • See page 38 for Waveforms. • See page 38 for IC Block Diagrams.<br />
(<strong>DB1070</strong>)<br />
CN306<br />
4P<br />
1k<br />
R320<br />
1k<br />
R321<br />
1k<br />
R322<br />
C318<br />
1<br />
50V<br />
C315<br />
470<br />
10V<br />
C314<br />
470 10V<br />
JW301<br />
VIDEO<br />
BUFFER<br />
IC305<br />
BA7622F<br />
VCC<br />
COUT<br />
VOUT<br />
YOUT<br />
CIN<br />
VIN<br />
YIN<br />
GND<br />
C316 CT301<br />
10p 20p<br />
IC304<br />
74HCU04<br />
X301<br />
17.34MHz<br />
C325<br />
33p<br />
CT303<br />
20p<br />
(<strong>DB1070</strong>:US,CND) <strong>DB1070</strong>:AEP,<br />
UK,E,CH<br />
CLOCK<br />
C326<br />
18p<br />
C328<br />
0.1<br />
R317<br />
1M<br />
R331 1k<br />
C319<br />
0.1<br />
R319<br />
330<br />
C320<br />
27p<br />
C331<br />
10<br />
50V<br />
3 1<br />
FL301<br />
C322<br />
L301<br />
22µH<br />
C330 10 50V<br />
CT302<br />
C323<br />
27p<br />
C329<br />
100p<br />
X302<br />
14MHz<br />
R327<br />
330<br />
R324<br />
1M<br />
R318 2<br />
75 R323 75<br />
10p<br />
20p<br />
OSD DRIVER<br />
R328<br />
100<br />
FL302<br />
1 3<br />
2<br />
(<strong>DB1070</strong>:AEP,UK,E,CH)<br />
VIDEO 2<br />
VIDEO 1<br />
C324<br />
0.1<br />
R333<br />
4.7k<br />
IC307<br />
MB90089F-<br />
G-238-BND<br />
EXD VSS<br />
XD EXVSYN<br />
VOB EXHSYN<br />
VOC2 VSYNC<br />
VOC1 HSYNC<br />
VOC0 XS<br />
TEST EXS<br />
SCLK VCC<br />
SIN VBLK<br />
CS FSCO<br />
VOUT AVCC<br />
COUT VIN<br />
YOUT CIN<br />
AVSS YIN<br />
R329 10<br />
R330 10<br />
R332<br />
100<br />
(CHASSIS)<br />
(CHASSIS)<br />
R334<br />
100<br />
IC306<br />
74HC00<br />
J303<br />
(CHASSIS)<br />
J302<br />
1P<br />
J305<br />
3P<br />
J304<br />
3P<br />
(CHASSIS)<br />
C333<br />
0.1<br />
E4<br />
E5<br />
E6<br />
E7<br />
C339<br />
0.1<br />
C341<br />
0.1<br />
R335<br />
75<br />
2 FL305<br />
C340<br />
2200<br />
10V<br />
R336<br />
75<br />
C354<br />
0.1<br />
R338<br />
75<br />
R339 75 C343 47p<br />
C336 47p<br />
R340 75 C344 47p<br />
C337 47p<br />
R341<br />
75<br />
Q304<br />
2SC2785<br />
BUFFER<br />
(<strong>DB1070</strong>:US,CND) (<strong>DB1070</strong>:AEP,UK,E,CH)<br />
COMPARATOR<br />
CONTROL A1 II<br />
MONITOR<br />
OUT VIDEO<br />
TV/SAT<br />
IN VIDEO<br />
DVD/LD<br />
IN VIDEO<br />
OUT VIDEO<br />
IN VIDEO<br />
OUT VIDEO<br />
IN VIDEO<br />
1<br />
2<br />
3<br />
1<br />
3<br />
R343<br />
47k<br />
FL303<br />
C350<br />
0.1<br />
C351 2200p<br />
C352 2200p<br />
C332<br />
0.1<br />
C335<br />
47p<br />
C342<br />
47p<br />
C345<br />
47p<br />
C353<br />
2200p<br />
Q305 R347<br />
2SC2785 3.9k<br />
BUFFER<br />
R345<br />
47k<br />
R349<br />
1.2k<br />
D301<br />
1SS133T<br />
R348<br />
47k<br />
FL304<br />
1 3<br />
R342<br />
75<br />
C346<br />
10<br />
50V<br />
C347<br />
10 50V<br />
R344<br />
75<br />
C348<br />
10<br />
50V<br />
R346<br />
75<br />
C349<br />
10<br />
50V<br />
C355 10 50V<br />
R350 47k<br />
2<br />
C2<br />
C1<br />
C4<br />
C3<br />
C375<br />
10<br />
50V<br />
SYNC SEPARATE<br />
IC309<br />
LA7213<br />
C361<br />
C368<br />
1<br />
50V<br />
C359 1000 R353 R352 C370<br />
0.1 6.3V 150k 330 0.1<br />
(<strong>DB870</strong>)<br />
VIDEO SELECT<br />
IC308<br />
NJM-2296M-<br />
23<br />
VCC<br />
JW305<br />
VSYNC<br />
C301<br />
E2<br />
470 10V<br />
E3<br />
R326 330<br />
C302<br />
470<br />
10V<br />
LINE AMP<br />
IC301<br />
OPA2652<br />
GND<br />
C4<br />
C303<br />
C305<br />
33p<br />
E1<br />
470<br />
10V<br />
R313<br />
330<br />
HSYNC<br />
IN<br />
C3<br />
VCC<br />
R315<br />
330<br />
C363<br />
10<br />
50V<br />
23<br />
FB303<br />
C366 10 50V<br />
C362 10 50V<br />
C2<br />
C1<br />
R337 330<br />
C304 33p<br />
VSS<br />
R316<br />
22k<br />
VCC<br />
VSYNC<br />
GND<br />
HSYNC<br />
C372<br />
1000 R356<br />
6.3V 150k<br />
D303<br />
1SS133T<br />
C358<br />
0.1<br />
R314<br />
22k<br />
IN<br />
D304<br />
1SS133T<br />
LINE AMP<br />
IC302<br />
OPA2652<br />
SYNC SEPARATE<br />
C374<br />
0.1<br />
IC311<br />
LA7213<br />
C376<br />
1 50V<br />
<strong>DB1070</strong>:AEP,<br />
UK,E,CH<br />
SW4<br />
SW1<br />
C313 10 50V<br />
VCC<br />
SW2<br />
R355<br />
330<br />
R359<br />
330<br />
R354<br />
330<br />
C307 33p<br />
VSS<br />
LEVEL SHIFT<br />
IC312<br />
74ACT08<br />
22k<br />
R358<br />
C382 0.1 C379 0.1<br />
A3<br />
A1<br />
LEVEL SHIFT<br />
IC310<br />
74ACT08<br />
C377<br />
0.1<br />
C367 C360<br />
0.1 0.1<br />
C309 C312 C308 C311<br />
10<br />
50V<br />
D4<br />
10<br />
50V<br />
D2<br />
D3<br />
10<br />
50V<br />
D1<br />
10<br />
50V<br />
SW3<br />
C381<br />
0.1<br />
VIDEO SELECT<br />
IC303<br />
TC74HC4053AF<br />
R325<br />
10k<br />
R357<br />
100<br />
Q302<br />
BA1A4M<br />
INVERTER<br />
R351 75<br />
C369 47p<br />
C373<br />
0.1<br />
C364<br />
0.1<br />
C378<br />
0.1<br />
A2<br />
A4<br />
A4<br />
A3<br />
A2<br />
A1<br />
C365<br />
0.1<br />
C380<br />
0.1<br />
SW4<br />
SW3<br />
SW2<br />
SW1<br />
* CN301<br />
19P (US,CND)<br />
14P (<strong>DB1070</strong>:AEP,UK,E,CH)<br />
10P (<strong>DB870</strong>:AEP,UK)<br />
<strong>DB870</strong>:CND<br />
/<strong>DB1070</strong><br />
C310<br />
10<br />
50V<br />
D1<br />
D2<br />
D3<br />
D4<br />
MONITOR-C/OUT<br />
MONITOR-Y/IN<br />
E1<br />
E2<br />
E3<br />
MONITOR-Y/OUT<br />
MONITOR-C/IN<br />
<strong>STR</strong>-<strong>DB870</strong>/<strong>DB1070</strong><br />
(US,CND) CN303 *<br />
B1<br />
B2<br />
B3<br />
B4<br />
B5<br />
R305<br />
75<br />
R307 75<br />
R310 75<br />
R304 75<br />
R306 75<br />
R309 75<br />
R312<br />
1k<br />
CN301<br />
*<br />
B1 MBUS-STATUS-OUT<br />
B2<br />
MBUS-TV<br />
B3<br />
MBUS-DVD<br />
B4<br />
MBUS-V1<br />
B5<br />
SIRCS OUT<br />
<strong>DB870</strong>:CND<br />
/<strong>DB1070</strong><br />
* CN303<br />
(US,CND)<br />
21P (US,CND)<br />
15P (<strong>DB1070</strong>:AEP,UK,E,CH)<br />
11P (<strong>DB870</strong>:AEP,UK)<br />
VIDEO3<br />
+5V(BACK UP)<br />
SW4<br />
SW3<br />
SW2<br />
SW1<br />
GND<br />
GND<br />
+5V<br />
-5V<br />
MBUS_OUT<br />
MBUS_TV<br />
MBUS_DVD<br />
MBUS_V1<br />
SIRCS<br />
+5V(B_UP)<br />
OSD_DATA<br />
OSD_CS<br />
OSD_CLK<br />
V-SYNC<br />
P/N<br />
GND_A1<br />
CTRL A1<br />
V_SW1<br />
V_SW2<br />
V SW3<br />
V SW4<br />
-5V<br />
+5V<br />
GND<br />
GND<br />
GND<br />
GND<br />
CN302<br />
2P<br />
R301<br />
75<br />
R308 1k<br />
R302 75<br />
R311 1k<br />
R303 75<br />
S-VIDEO<br />
BOARD<br />
CN751<br />
(Page 25)<br />
(Page 15)<br />
J301<br />
9P<br />
Y<br />
PBB-Y<br />
PRR-Y<br />
Y<br />
PBB-Y<br />
PRR-Y<br />
Y<br />
PBB-Y<br />
PRR-Y<br />
DVD/LD<br />
IN<br />
TV/SAT<br />
IN<br />
MONITOR<br />
OUT<br />
(US,CND)<br />
COMPONENT<br />
VIDEO
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