DVP-C660/C670D/C675D
4-41
4-42
AI-18 (VIDEO BUFFER) SCHEMATIC DIAGRAM
• See page 4-39 for printed wiring board.
– Ref. No.: AI-18 board; 2,000 series –
VIDEO BUFFER
AI-18 (1/5)
1
IC603
wa
728 mVp-p (H)
2
IC603
wd
720 mVp-p (H)
3
IC603
wg
1.0 Vp-p (H)
4
IC603
ea
2.1 Vp-p (H)
5
IC603
ed
520 mVp-p (H)
6
IC603
eg
2.4 Vp-p (H)
B+
B+
B+
B+
B+
B-
-0.1
5
3.3
-0.1
-5
-0.1
-0.1
3.3
-5
-0.1
0.1
-0.3
-0.3
-0.3
3.3
-5
4.9
-0.3
-0.3
-0.3
3.3
-5
NO MARK:DVD/CD PLAY
5
0
5
0
6
5
4
1
2
3
B+
B-
B+
B-
B+
B-
B-
B+
B+
B+
3.4
1.8
1.8
-5
-10.2
B+
UN2111-TX
Q602
68
R615
10k
R611
0.1u
C614
HZM6.8ZWA1TL
D603
68
R618
68
R617
68
R613
0.1u
C612
68
R616
JL615
68
R614
JL617
25V
47u
C613
10k
R607
JL618
HZM6.8ZWA1TL
D601
UN2213-TX
Q601
68
R608
68
R609
68
R610
SW-11V
SW+3.3V
SW+11V
VMUTE
SW+5V
Y
C
G
G
C
G
G
Y
J601
J602
JL614
JL616
JL619
IC602
L79M05TLL-SONY-TL
GND
1
IN
2
OUT
3
0.22u
C611
25V
100u
C604
M_GND
JL601
JL602
JL603
JL604
JL605
JL606
JL610
JL611
JL609
JL608
JL607
HZM6.8ZWA1TL
D602
HZM6.8ZWA1TL
D604
JL620
JL621
JL622
D_GND
JL612
JL613
25V
22u
C605
25V
22u
C607
25V
22u
C608
25V
22u
C609
25V
22u
C610
47k
R601
47k
R603
47k
R605
47k
R602
47k
R604
47k
R606
Y
CB
CR
D_GND
0.1u
C606
LA7109-TLM
IC603
1
VIDEO_IN
2
GND
3
MUTE
4
C_IN
5
GND
6
-5V
7
Y_IN
8
GND
9
N.C.
10
N.C
11
Y_IN
12
GND
13
MUTE
14
Cb_IN
15
GND
16
-5V
17
Cr_IN
18
GND
19
-5V
22
DRIVE_CTL1
23
Cb_OUT
24
GND
25
Y_OUT
26
+5V
27
N.C
28
N.C
29
-5V
30
MUTE
31
Y_OUT
32
DRIVE_CTL2
33
C_OUT
34
GND
35
VIDEO_OUT
36
+5V
21
Cr_OUT
20
MUTE
PQ018EZ01ZP
IC601
1
VIN
2
VC
3
V0
4
NC
5
GND
6
0.33u
C615
16V
47u
C616
0
R612
FB601
FB602
FB603
FB604
FB605
FB606
ET601
CN601
28P
1.8V
1
1.8V
3
Cr
5
VB_GND
7
Cb
9
VR_GND
11
5V
13
M_GND
15
M_GND
17
11V
19
11V
21
GND
23
3.3V
25
3.3V
27
D_GND
2
D_GND
4
Y
6
VS_GND
8
WIDE
10
D_GND
12
5V
14
D_GND
16
VIDEOY
18
VYC_GND
20
VIDEOC
22
VV_GND
24
VIDEOV
26
D_GND
28
0.1u
C603
1
A
1
2
3
4
2
8
6
9
5
7
1
3
10
MA-87 BOARD (2/10)
(SEE PAGE 4-21)
CN502
+1.8V REG
IC601
-5V REG
IC602
SIGNAL PATH
Y/CHROMA
CHROMA
VIDEO SIGNAL
PB
Y
VIDEO BUFFER
IC603
AI-18 BOARD (5/5)
8
19
H
E
7
14
05
11
D
10
3
F
C
4
17
12
6
13
G
15
9
B
18
5
AI-18 BOARD (1/5)
2
16
AI-18 BOARD (5/5)
AI-18 BOARD (5/5)
AI-18 BOARD (5/5)
VIDEO-OUT
S VIDEO OUT
1
2
AI-18 BOARD (2/5)
AI-18 BOARD (5/5)
WIDE SWITCH
WIDE SWITCH
1
2
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299