Gc, Qa - Sony BVM-1911 Operation And Maintenance Manual

GC,
QA, QB, V, W
GC,
QA,
QB, V, W
GC board (REG) OA board (COMPOSITE VIDEO INPUT)
V board (REMOTE) W board (RGB/COMPONENT)
OB board (RGB/COMPONENT INPUT)
VIDEO
A
INPUT
VIDEO 8
INPUT
EXT SYNC
INPUT
GC-3
+12V
E
-12V
I
2
3
C3
0.01
S I
SW3
(
COMPOS I TE)
VIDEO
INPUT
-150V 4
E
5
TD BK-4
+12V I
+12V 2
E
3
-12V 4
-12V 5
GC-2
TD TB - 17
' G
C
(REG)
L:: __
J
QA-I
V IDED A
TD
BA- I
QA-2
VIDEO B
TD
BA-2
QA-3
EXT SYNC
TO
BA-3
5-107
R/R-Y
IN PUT
G/Y TEST
INPUT
8/8-Y
INPUT
S3
QB (
~~~PONENT\
INPUT )
GC-1
TD TB-16
QB-I
R/R-Y
TD BA -4
QB-2
0-Y
TD BA -5
QB-3
B/8-Y
J
I
I
REMOTE
I
r-- -- -- -
I
L
v,,,,,,,,
I __ -------------------
TO B3IBF-II
DECODER R/R-Y IN
f.<>\----'#c----{5}
DECODER G/Y IN
TD B3IBF- 31
DECODER B/8-Y
RI
75
:RN
RGB/ )
w
COMPONENT
OUT
CPI
RD13EB
R/R-Y OUT
G/Y OUT
B/8-Y OUT
GC BOARD
IC I
uPD7912H
- I 2 V
REG
2 uPD7912H - I 2 V REG
3 uPD7812H
+
1 2 V REG
4 uPD7812H
+
I 2 V REG
l
REM I
REM2
TALLY
REM4
REMO
REMS
REM7
GND
V-1
TO TB-29
5-108