Fluke 2680A Service Manual page 221

8 7
U24
LT1763
VCC_U25 8
IN
2.5V
+ 5
SHDN
C152
D 6
10U
GND
GND
VCC
L47
70 OHM
+
C43 C48 C55 C68 C73 C77 C87 C91
10U 0.01U 0.01U 0.01U 0.01U 0.01U 0.01U 0.01U
C
GUARDCK2 1 4 7
GUARDCK2* 8
2 3
9
GUARDCK3 11
1 4
GUARDCK3* 2 3 12
13
GUARDCK4 1 4 14
GUARDCK4* 2 3 15
GUARDCK5 17
1 4
GUARDCK5* 2 3 18
KEY_RST 24
KEY_IRQ* 25
26
CARD5_TX 1 4 27
28
CARD4_TX 29
2 3
30
CARD3_TX 1 4 31
CARD2_TX 2 3 36
37
CARD1_TX 1 4 38
39
CARD0_TX 40
2 3
41
44
45
46
47
TRIG_OUT 53
TRIG_IN 54
55
56
B
57
58
60
61
VCC_U25
3 2 CARD5_RX 63
4 1 64
CARD4_RX 65
CARD3_RX 67
68
3 2
4 1 CARD2_RX 69
70
1 4 CARD1_RX 71
2 CARD0_RX 73
3
74
75
83
TP13
85
TP14
86
TP15
87
TP40
88
TP42
89
TP43
90
TP45
92
TP46
93
TP47
94
TP48
95
TP49
96
TP50
97
TP51
99
TP52
100
TP56
A
6 5
WP4 +2.5V
1
OUT
+
2
C141 C130
SENSE
0.01U 10U C116 C121 C122 C123 C124 C125 C126
4
0.01U 0.01U 0.01U 0.01U 0.01U 0.01U 0.01U
BYP
GND
C94 C97 C100 C103 C106 C109 C112 R144 C61
0.01U 0.01U 0.01U 0.01U 0.01U 0.01U 0.01U 0.22U
1K
5%
VPP
5
VCCSEL
14
VPPSEL
EPC2LC20
19
TMS
9
CS
11
TDI
P8
3
TCK
BYTEBLASTER HEADER 1
2
1
3
4
5
9
10
R166 R167
1K 1K
5% 5%
101
47 VCC
I/O-7 Z49 I/O-101 TP63
102
I/O-8 47 Z49 I/O-102 TP64
103
TP65
I/O-9 I/O-103
104 TRIG_CPU
I/O-11 47 Z65 I/O-104
111
47 Z65
I/O-12 I/O-111
112
I/O-13 I/O-112
113
I/O-14 47 Z66 I/O-113
114
47
I/O-15 Z66 I/O-114
115
I/O-17 47 Z64 I/O-115
116
47
I/O-18 Z64 I/O-116
119
I/O-24 I/O-119
120
I/O-25 I/O-120
121 TEA*
I/O-26 R3 0.0 I/O-121
122 GRD_IRQ*
47 Z60
I/O-27 I/O-122
125 2 3 SERVQ_5
Z11 47
I/O-28 I/O-125
126 SERVQ_4
1 4
I/O-29 47 Z60 Z11 47 I/O-126
127 2 3 SERVQ_3
Z10 47
I/O-30 I/O-127
128 1 4 SERVQ_2
I/O-31 47 Z61 Z10 47 I/O-128
131 2 3 SERVQ_1
47 Z12 47
I/O-36 Z61 I/O-131
132 1 4 SERVQ_0
Z12 47
I/O-37 I/O-132
133
47 Z62
I/O-38 I/O-133
134
I/O-39 I/O-134
135
I/O-40 47 Z62 I/O-135
136 30
I/O-41 I/O-136
139
29
I/O-44 I/O-139
140 28
I/O-45 I/O-140
141
27
I/O-46 I/O-141
142
I/O-47 I/O-142
143
I/O-53 I/O-143
144
I/O-54 I/O-144
U25 147
I/O-55 I/O-147
148
I/O-56 EP1K100QC208 I/O-148
149
I/O-57 I/O-149
150
I/O-58 I/O-150
DATA(0) 160 15
I/O-60 I/O-160
163
DATA(1) 14
I/O-61 I/O-163
DATA(2) 167 13
I/O-63 I/O-167
168 12
1K DATA(3)
I/O-64 Z59 I/O-168
169
DATA(4) 11
I/O-65 I/O-169
DATA(5) 170 10
I/O-67 I/O-170
172
DATA(6) 9
I/O-68 1K Z48 I/O-172
DATA(7) 173 8
I/O-69 I/O-173
174
DATA(8) 7
I/O-70 I/O-174
175 WE0*
I/O-71 1K Z50 I/O-175
176 OE*
I/O-73 I/O-176
177
I/O-74 I/O-177
179
I/O-75 I/O-179
187 SWR1
I/O-83 I/O-187
189 SWR5
I/O-85 I/O-189
190 SWR4
I/O-86 I/O-190
191 SWR3
I/O-87 I/O-191
192 SWR2
I/O-88 I/O-192
193
I/O-89 I/O-193
195 SWR0
I/O-90 I/O-195
196
I/O-92 I/O-196
197 2 3 GUARDCK0
47
I/O-93 Z68 I/O-197
198 1 4 GUARDCK0*
47
I/O-94 Z68 I/O-198
199 2 3 GUARDCK1
47
I/O-95 Z69 I/O-199
200 1 4 GUARDCK1*
47
I/O-96 Z69 I/O-200
202 FIL_CLK
2 3
I/O-97 Z67 47 I/O-202
203 1 4 FIL_CLK*
47
I/O-99 Z67 I/O-203
205
I/O-100 I/O-205
R14
1K
ADDR<6..31>
4
C127 C129 C131 C132
0.01U 0.01U 0.01U 0.01U
R18 R34 R19 R16 R36 R37
1K 1K 1K 1K 1K 1K
5% 5% 5% 5% 5% 5%
VCC 154
-CE
U9
2 FPGA_CONFIG* 105
DATA -CONFIG
4
DCLK
155
DCLK
13 10
INIT_CONF CLKUSR
12
CASC
186
DEV-OE
1
TDO U25
207
CS
8
OE EP1K100QC208
FPGA_CS* 208
-CS
GND
OE* 204
-RS
WE0* 206
-WS
W5 180
DEV_CLR
REMOVE R21 AND INSTALL W5
0.0
7 156 (8) IF EPC2 IS USED
DATA0 R21
6 157
(9)
DATA1
158
5 (10)
DATA2
4 159 (11)
DATA3
161
3 (12)
DATA4
2 162 (13)
DATA5
1 164
(14)
DATA6
0 166 (15)
DATA7
D<0..31>
Schematic Diagrams
3 2
FPGA AND
SUPPORT
3
-CEO
16
TP78
RDY/BSY
2 FPGA_CONF_DONE
CONF_DONE
19 FPGA_INIT_DONE
INIT_DONE
52 FPGA_STATUS*
-STATUS
79 FPGA_CK
GCLK1
183 1.92MHZ_CK
GCLK2 +2.5V
62
LOCK
77
VCC_CKLK
C153
81 0.01U
GND_CKLK
Z51
1 2 3 VCC_U25
TCK
153 1 4
TDI
4
TDO Z52 10K
50 2 3
TMS
1 4
51
TRST 10K
Z53
108
1 4
MSEL0
107 2 3
MSEL1
10K
INSTALL BOTH IF EPC2 CONFIG DEVICE IS USED
REMOVE IF PPA CONFIG SCHEME IS USED
1 1
2680A-1004
(4 of 5)
Figure 8-2. Controller/System Power PCA (cont)
8
1
D
C
B
A
8-9