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NC
NC
R537
1.00K
+5V
+5V
R566
2.00K
<21>
J415-5
F1
C539
1000PF
H SHAPE
SAMPLE
& HOLD
R536
5K
+12V
1
2
3
1
4
1
1
U541A
TL074
IN
2
S/H
14
VLC
13
OUT
7
NUL
4
+V
9
HOLD
11
N/C
12
N/C
10
NUL
3
-V
5
U548
SMP-11F
W548
0 OHM
+12V
R438
1.00K
R437
499.0
HORIZ
DAC
ID0
ID1
RFB
23
DB0
17
DB1
16
DB2
15
DB3
14
DB4
13
DB5
11
DB6
10
DB7
9
DB8
8
DB9
7
DB10
6
DB11
5
LDAC
20
WR
19
CS
18
CLR
21
VSS
1
AGND
4
DGND
12
VDD
22
VOUT
24
REFOUT
3
ROFS
2
U470
AD7245
ID[0..15]
/LATCH1
/LATCH2
DATA LATCH
<16>
H2
ID[0..15]
<17>
D3
/LATCH1
NC
NC
NC
NC
ID14
ID13
ID12
ID15 L1D15
L1D14
L1D13
L1D12
+5V
D1
4
Q1
2
Q1
3
D2
5
Q2
7
Q2
6
D3
12
Q3
10
Q3
11
D4
13
Q4
15
Q4
14
CLK
9
CLR
1
U384
74ALS175
D1
4
Q1
2
Q1
3
D2
5
Q2
7
Q2
6
D3
12
Q3
10
Q3
11
D4
13
Q4
15
Q4
14
CLK
9
CLR
1
U380
74ALS175
CONTROL
READOUT
STATE MACHINE
I0
I1
2_OF_4_EN
SKIP
WFS
500KHZ
I/CK
1
I
2
I
3
I
4
I
5
I
6
I
7
I
8
I
9
I/O
19
I/O
18
I/O
17
I/O
16
I/O
15
I/O
14
I/O
13
I/O
12
I/OE
11
U177
16V8-25Q
W0
W1
W2
RESET
START_RO
/LDAC2
C568
.1UF
/LDAC4
ID2
ID3
ID4
ID5
ID6
ID7
ID8
ID9
ID10
ID11
H_DAC_OUT
+12V
R572
10.0
NC
NC
C572
.1UF
-12V
R538
499.0
NC
NC
C448
2200PF
-12V
R547
43.2K
R539
2.00K
J515-1
<21>
H1
1
6
5
7
U541B
TL074
CR546
D-0141
H_RO_DATA_VEC
H_RO_DATA_WFM
+12V
R545
7.50K
<21>
J415-11
F2
3
CR545
D-0141
CR565
D-0141
SEG_INTENS
9
10
8
U541C
TL074
13
12
14
U541D
TL074
9
10
8
U560C
TL074
13
12
14
U560D
TL074
R541
2.00K
R546
10.0K
R445
10.0K
R563
10.0K
R565
20.0K
R564
10.0K
VERT
DAC
2
C567
.1UF
C571
.1UF
ID0
ID1
ID2
ID3
ID4
ID5
ID6
V_DAC_OUT
/LATCH1
-12V
+5V
R567
10.0
RFB
23
DB0
17
DB1
16
DB2
15
DB3
14
DB4
13
DB5
11
DB6
10
DB7
9
DB8
8
DB9
7
DB10
6
DB11
5
LDAC
20
WR
19
CS
18
CLR
21
VSS
1
AGND
4
DGND
12
VDD
22
VOUT
24
REFOUT
3
ROFS
2
U467
AD7245
INHIBIT_RO
I0
I1
I2
2_OF_4_EN
W3
INSTRUCTION
M1
M0
M2
I2
START_SUBSET
RELEASE
500KHZ
I/CK
1
I
2
I
3
I
4
I
5
I
6
I
7
I
8
I
9
I/O
19
I/O
18
I/O
17
I/O
16
I/O
15
I/O
14
I/O
13
I/O
12
I/OE
11
U175
16V8-25Q
NC
NC
NC
NC
NC
ID15
ID14
ID13
ID12
L2D15
L2D14
L2D13
L2D12
L2D15
+5V
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U385
74HCT574
<17>
D4
/LATCH2
STATE
MACHINE
LATCH
NC
NC
BLANK
L1D15
L1D14
L1D13
L1D12
L2D14
L2D13
L2D12
/LDAC2
DECODER #1
WFS
FIELD
DISPLAY
INHIBIT_RO
M0
M2
M1
M0
M1
VEC_LINESEL
500KHZ
W_MENU
I/CK
1
I
2
I
3
I
4
I
5
I
6
I
7
I
8
I
9
I/O
19
I/O
18
I/O
17
I/O
16
I/O
15
I/O
14
I/O
13
I/O
12
I/OE
11
U180
16V8-25Q
NC
W_BLANK_EN
VEC_CRT
WFM_RO_ON
RELEASE
START_SUBSET
V_MENU
C570
.1UF
C569
.1UF
/LDAC4
ID7
ID8
ID9
ID10
ID11
/LATCH2
+12V
-12V
+5V
2
3
1
4
1
1
U560A
TL074
IN
2
S/H
14
VLC
13
OUT
7
NUL
4
+V
9
HOLD
11
N/C
12
N/C
10
NUL
3
-V
5
U565
SMP-11F
/SAMPLE_RO
+12V
-12V
R461
1.00K
R556
1.00K
V SHAPE
NC
NC
SAMPLE
& HOLD
R555
5K
C465
2200PF
+12V
-12V
R559
4.99K
<21>
J415-7
J515-3
F1
<21>
H1
6
5
7
U560B
TL074
CR564
D-0141
C558
1000PF
V_RO_DATA_WFM
V_RO_DATA_VEC
123
U550
U553
2
C554
.22UF
CR553
D-0066
C553
.1UF
C551
.22UF
C550
.1UF
IN
3
OUT
1
G
2
U553
78L12A
CR550
D-0066
+15V +12V
IA2
IA3
IA17
IA16
IA15
IA14
R558
1.00K
R557
1.00K
<21>
J415-22
J515-57
J415-58
J415-60
LINE
DRIVER
+5V 1A1
2
1Y1
18
1A2
4
1Y2
16
1A3
6
1Y3
14
1A4
8
1Y4
12
2A1
11
2Y1
9
2A2
13
2Y2
7
2A3
15
2Y3
5
2A4
17
2Y4
3
1G
1
2G
19
U485
74HCT244
/W_RO_EN
CURS_TOP/BOT
CURS_SEL
VEC_CRT
DISPLAY
/ROEN
/SAMPLE_RO
DECODER #2
M2
W0
W1
W2
W3
PM0
500KHZ
W_MENU
I/CK
1
I
2
I
3
I
4
I
5
I
6
I
7
I
8
I
9
I/O
19
I/O
18
I/O
17
I/O
16
I/O
15
I/O
14
I/O
13
I/O
12
I/OE
11
U185
16V8-25Q
NC
NC
NC
<21>
NC
J415-57
F5
READOUT
MULTI–
PLEXER
C170
330PF
-REF_H_SYNC
+5V
R171
1.00K
R170
1.00K
A
15
QA
3
B
1
QB
2
C
10
QC
6
D
9
QD
7
UP
5
DN
4
LD
11
CLR
14
BO
13
CO
12
U170
74HCT193
<18>
F4
NCNC
RO_STARTV
RO_INHB
RO_START
DISPLAY
INHIBIT_RO
START_VEC_RO
START_RO
L1D14
L1D13
L1D12
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U171
74HCT574
DECODER #3
PM2
PM1
PM0
PM1
PM2
RESET
I2
I1
I0
START_VEC_RO
I/CK
1
I
2
I
3
I
4
I
5
I
6
I
7
I
8
I
9
I/O
19
I/O
18
I/O
17
I/O
16
I/O
15
I/O
14
I/O
13
I/O
12
I/OE
11
U187
16V8-25Q
NC
<16>
ADDRESS
COUNTER
/HOLD
W2
INCREMENT
CLEAR
SKIP
A3
1A1
2
1Y1
18
1A2
4
1Y2
16
1A3
6
1Y3
14
1A4
8
1Y4
12
2A1
11
2Y1
9
2A2
13
2Y2
7
2A3
15
2Y3
5
2A4
17
2Y4
3
1G
1
2G
19
U480
74HCT244
CLK
10
RST
11
Q1
9
Q2
7
Q3
6
Q4
5
Q5
3
Q6
2
Q7
4
Q8
13
Q9
12
Q10
14
Q11
15
Q12
1
U487
4040
IA4
IA5
IA6
IA7
IA8
IA9
IA10
C276
.1UF
C284
.1UF
C485
.1UF
C180
.1UF
C175
.1UF
C171
.1UF
C487
.1UF
IN
2
OUT
3
G
1
U550
79L12
+5V+5V +5V +5V
+5V +5V +5V
-15V -12V
SEE ELECTRICAL PARTS LIST
PARTS WITHIN BOX
HAVE BEEN CHANGED
IN REAR OF MANUAL
<16>
G1
IA[2..17]
IA11
IA12
IA13
IA[2..17]
<17><21>
C4
/ROEN
NC
J415-3
J415-1
J415-56
J415-59
W_RO_BLNK
/V_RO_EN
V_RO_BLNK
V_BLANK_EN
VEC_RO_ON
VEC_LINESEL
V_MENU
W0
W1
W2
VEC_CRT
I2
SKIP
BLANK
FIELD
RESET
500KHZ
W3
WRO_ONLY
VRO_ONLY
WRO_BURST
VRO_BURST
RO_RESET
WFM_RO_ON
VEC_RO_ON
VEC_LINESEL
W_MENU
V_MENU
/LDAC2
/LDAC4
D1
2
Q1
19
D2
3
Q2
18
D3
4
Q3
17
D4
5
Q4
16
D5
6
Q5
15
D6
7
Q6
14
D7
8
Q7
13
D8
9
Q8
12
CLK
11
OC
1
U376
74HCT574
<18>
D4
D4
C3
D3
D3
STATE
MACHINE
LATCH
1780R–SERIES
<19>
C2
500KHZ
READOUT ENGINE & READ OUTPUT <20>
PART OF A5 MICROPROCESSOR BOARD