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Section 9
Schematic Diagrams
AT-191
AT-191 (1/10)_L
CN1:Power
0.5mm FFC 45p AN 0.15A/pin
CN1
1
GND(Unreg +15V)
2
GND
3
MST-74M-CLK
4
GND(CLK)
5
MST-27M-CLK
Master27MHzClock
005:2H
6
GND(CLK)
7
MST-HD-F(OP)
8
MST-HD-H(OP)
ADV_H
006:11E
9
FRAME-GATE
10
CPU-VD-INT
CPU_VD_INT
005:6F
11
SPARE2
SPARE2
005:6F
12
SPARE1
SPARE1
005:6F
13
RCP-PIX(GND)
14
RCP-PIX(X)
RCP_700P_COM
008:11C
15
GND
CN5
COM1_TVD+
16
GND(RCP +15V)
RCP-TXD(x)
1
COM1_TVD-
17
GND(RCP +15V)
RCP-TXD(y)
2
COM1_RVD+
18
GND(RCP +15V)
RCP-RXD(x)
3
COM1_RVD-
19
GND(RCP +15V)
RCP-RXD(y)
4
20
N. C
TX-GND
5
21
RCP +15V
RCP-Unreg
6
22
RCP +15V
Unreg-GND
7
FB45
23
RCP +15V
RCP-PIX(x)
8
24
RCP +15V
9 10
25
N. C
26
Unreg +15V
27
Unreg +15V
28
Unreg +15V
29
Unreg +15V
30
Unreg +15V
31
Unreg +15V
32
Unreg +15V
33
Unreg +15V
34
Unreg +15V
35
Unreg +15V
36
N. C
37
GND(Unreg +15V)
38
GND(Unreg +15V)
39
GND(Unreg +15V)
+3.3V
40
GND(Unreg +15V)
41
GND(Unreg +15V)
IC18
5
TC7SH08FU
42
GND(Unreg +15V)
2
R44
R43
22
4
43
GND(Unreg +15V)
22
1
44
GND(Unreg +15V)
3
C38
45
GND(Unreg +15V)
0.1uF
47
46
GND
+3.3V
C37
0.1uF
IC19
5
TC7SH08FU
2
R46
4
22
R47
22
1
MST-HD-F
3
(SIDE-B)
(SIDE-B)
ET1
ET2
1
2 3
1
2 3
(SIDE-B)
(SIDE-B)
(SIDE-A)
(SIDE-A)
(SIDE-B)
ET3
ET4
E1
E2
E3
1
2 3
1
2 3
AT-191_1
GND
HXCU-FB70
Unreg
1.5A/24V
CL2
1.2
D4
THP4
UDZSUSTE-174.7B
142
C68
47uF
C69
C70
25V
R33
0.01uF
0.01uF
25V
25V
10k
R30
10k
Q3
2SC4617TL-QR
R41
3
IC8
(3/3)
0
R1
NJM2903V(TE2)
+
22k
1
C51
C52
0.01uF
2
-
0.1uF
V+
IC8
(1/3)
R83
25V
25V
C3
100k
1608
0.1uF
GND
NJM2903V(TE2)
NM
R34
R42
22k
10k
IC8
(2/3)
R2
NJM2903V(TE2)
R3
5
+
C4
7
-
470pF
6
C6
FB28
FB29
Master74MHzClock
005:13B
R49
150k
V = 0.5 * (1 + Rf / Rg)
= 0.5 * (1 + (150k + 22k ) / 10k)
= 9.1V
5
Vhys = Is * Rf
R50
VCC
= 2.5uA * (150k + 22k)
22k
RESET
= 0.43V
2
VS
Vup = V + Vhys
= 9.1 + 0.43
= 9.53V
GND
R51
10k
Vdown = V
4
= 9.1V
GND
005:6F
R4
C20
C24
47uF
10uF
1M
f=5.5V/(0.7V*10pF*1001k)=785kHz
25V
Vout=0.8V*(1+(47k+10k+2.2k)/10k)=5.53V
25V
R5
D1
1M
R9
R10
RB706F-40
100k
100k
1
NM
2
3
C22
C27
8 7 6 5
47uF
10uF
25V
25V
IC1
Q1
C16
4
0.1uF
LTC1778EGN
HAT2070R-EL
S
1
16
C23
C28
C17
RUN/SS
BOOST
1 2
3
47uF
0.1uF
FB6
L2
100uF
2
15
10uH
10V
10V
PGOOD
TG
0
3
14
VRNG
SW
6.7A
100
4
13
FCB
PGND
FB7
R6
33k
5
12
8 7 6 5
C36
ITH
BG
10uF
6
11
16V
4
C25
SGND
INTVCC
R19
C21
2012
47uF
100pF
7
10
2.2
100uF
S
10V
ION
VIN
10V
8
9
1 2
3
VFB
EXTVCC
D2
R20
R7
2.2
RB160L-40TE25
10k
R12
R14
C14
Q2
1M
1k
0.1uF
25V
HAT2070R-EL
C2
1608
0.01uF
R13
R15
R17
47k
10k
2.2k
C15
NM
0.1uF
16V
C10
0.0022uF
R22
2.2
3225
C18
0.1uF 1608
NM
R21
0
1608
PGOOD_+5.5V
004:2A
+10.5V-+18V_IN LEVEL CHECK
LEVEL: +12V Level < 9.1V -> V_LEVEL=Low
+3.3V
C66
0.1uF
25V
1608
R57
1k
IC6
IC9(1/4)
IC9(2/4)
TL7700CPS-E20
TC7WH14FK
TC7WH14FK
R80
10
8
V_LEVEL(9.35V)
1
7
6
2
1
CT
C67
0.1uF
25V
TC7WH14FK
1608
FB20
FB21
+5.5V
CL4
+5.5V
C31
FB22
335
1.2
100uF
10V
FB23
C33
C35
0.1uF
0.1uF
16V
16V
FB24
FB25
GND
FB26
FB27
0.02_0.12 ohm at DC
30 ohm at 100MHz
max1500mA
NMI
002:6G
IC9(4/4)
TC7WH14FK
IC9(3/4)
+3.3V-2a
3
5
VCC
C71
0.1uF
GND
9-1
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