Dvdm Assy 4/4 [Video Block] - Pioneer DV-2750-S Service Manual

1

3.8 DVDM ASSY 4/4 [VIDEO BLOCK]

A
B 4/4
B
2/4
B
from IC601 132pin
(page2/4)
VSEL1
C
Q801
DTC114YUA-TLB
B
2/4
from Q501–521
(page2/4)
D
B
2/4
from Q531–551
(page2/4)
: V SIGNAL ROUTE
V
: S-VIDEO OUT C/C SIGNAL ROUTE
S-C/C
E
: S-VIDEO OUT Y/Y SIGNAL ROUTE
S-Y/Y
: R/Cr SIGNAL ROUTE
R/Cr
: G/Y SIGNAL ROUTE
G/Y
: B/Cb SIGNAL ROUTE
B/Cb
: AUDIO SIGNAL ROUTE
: AUDIO(DIGITAL) SIGNAL ROUTE
D
F
B 4/4
28
1
2
DVDM ASSY
(VWS1572)
C87
C88
V+5V
GND
S-C/C
C811
S_C
V
C821
CVBS
S-Y/Y
C831
S_Y
G/Y C841
G/Y
B/Cb
B/CB
C851
R/Cr
R/CR
C861
2
3
IC81
VIDEO AMP DRIVER
MM1566AJ-TBB
1
Vcc1
C86 0.1
G/Y
2
C in
3
MUTE1
0.1 B/Cb
4
V in
5
C84
MODE1
R/Cr
***
6
Y in
0.1
7
BIAS
C85
8
0.1
GND1
GND
IC801
VIDEO AMP DRIVER
MM1623BF-TBB
1
Vcc1
0.1
2
C in
3
MUTE1
1
4
V in
5
YC MIX
1
6
Y in
C804 7
GND1
***
8
C805
BIAS
0.1
9
I/P
1
10
CY in
11
CLP
12
Cb in
0.1
13
MUTE2
14
Cr in
0.1
GND
I/XP
from IC601 139pin
(page2/4)
B
2/4
DV-2750-S
3
4
V+5V
16
Vcc2
R81
15
C out
G/Y
14
MODE2
13
V out
B/Cb
12
VSAG
11
GND2
R/Cr
10
Y out
9 R83
YSAG
***
GND
B
from IC601
(page2/4)
V+5V
28
Vcc2
27
DC out
26
C out
25 SQUEEZE 138pin
S1
24 LETTER 134pin
S2
23
V out
22
GND2
21
Y out
20
CY out
19
GND2
18
Cb out
17
GND2
16
Cr out
15
GND2
GND
4
***
R82
***
2/4
S-C/C
S-Y/Y
V
G/Y
B/Cb
R/Cr