Tektronix 070-8030-01 User Manual
C419
.1UF
+12V
ALTERNATE MODE SWITCH
+12V
R430
750.0
SWITCH CONTROL
+5A
DIFF. PHASE DISPLAY
J320
P320
+5A
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
59
59
60
60
J115
-REF_H_SYNC
ED_6
ED_7
V_SYNC
+5A
D
2
Q
5
CK
3
Q
6
P
R
4
C
L
1
U417A
74LS74
1-2 DOUBLE
2-3 SINGLE
OFFSET
DEMOD
1 2 3
J320
+12V
-12V
R214
100.0K
R314
5K
+12V
R427
4.75K
R426
4.75K
R428
4.75K
R323
2.21K
R420
4.99K
D
12
Q
9
CK
11
Q
8
P
R
1
0
C
L
1
3
U417B
74LS74
6
1
2
8
10
4
U425
1496P
3
2
6
5
1
8
7
4
U422
NE5534
+12V
R429
1.00K
R418
750.0
0 +/- .75V
NC
C418
.1UF
C417
10PF
ALT_DEMOD
-12V
R417
1.00K
1
5
2
3
1
4
-12V
R422
2.00K
R421
1.50K
R424
4.99K
Q322
Q-0188
-12V
+5A
R423
1.50K
R318
100.0
1 +/- .75V
1
2
<33>
F2
2
3
1
1
2
1
3
4
5
U217A
DG211
10
11
9
U217C
DG211
7
6
8
U217B
DG211
FLTR
DEMOD
+12V
+5A
R317
10.0K
R213
2.49K
<32>
D3
DEMODULATED CHROMA
SOURCE SWITCH
ED_[0..7]
DEMOD
ED_[0..7]
ED_0
ED_1
ED_2
ED_3
ED_4
ED_5
+5V
NC
<33>
<31>
E4
H3
-REF_H_SYNC
/CLOCK2
CLOCK2
CLOCK
/CLOCK
/MA
+12V
FLTR_DEMOD
ED_0
4
5
6
U246B
74LS00
9
10
8
U246C
74LS00
D1
3
Q1
2
D2
4
Q2
5
D3
7
Q3
6
D4
8
Q4
9
D5
13
Q5
12
D6
14
Q6
15
D7
17
Q7
16
D8
18
Q8
19
CLK
11
CLR
1
U330
74LS273
NC
15
14
1
6
U217D
DG211
/LSE
-12V
NC
OFFSET
DAC
R315
5K
+12V
<31>
C5
<31>
E5
EXT_CW
+V
/FL
/MA
/BYPASS
DATA
LATCH
/ERSTO
ED_1
ED_2
ED_3
ED_4
ED_5
ED_6
ED_7
C433
1UF
+5A
R433
33.2K
NC
NC
NC
<33>
E4
AFC_SYNC
/FL
/LSE
V_SYNC
ALT_DEMOD
/ERSTO
-12V
CONNECTS
E1
BOARD
J115
TO J303
<44>
A11
INTERCONNECT
NOTE:
SEE TABLE 34
FOR SIGNAL
ORIGIN OR
DESTINATION
<32>
G2
<33>
A2
<31>
C3
IFSC1
IFSC2
QFSC1
QFSC2
REF_SYNC
PHASE_BLANK
FLTR_DEMOD
-15V
NC
NC
EA_0
EA_1
EA_2
PHASE_BLANK
+5A
C
X
1
4
R
X
1
5
A
1
B
2
C
L
3
Q
13
Q
4
U335A
74LS221
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
U243
74LS138
6.2V
<32>
D5
OFFSET DAC
VR324
DPS_LSB
DPS_MSB
ED_0
ED_1
ED_2
ED_3
ED_4
ED_5
ED_6
-12V
R324
750.0
RFB 16
GND 3
VDD 14
CS
12
WR
13
DB7
4
DB6
5
DB5
6
DB4
7
DB3
8
DB2
9
DB1
10
DB0
11
VREF
15
OUT2
2
OUT1
1
U325
7524
DAC
GAIN
C219
.1UF
C225
15PF
R322
1K
C227
.1UF
+12V
-12V
2
3
1
8
4
U221A
TL072
C320
.1UF
R321
4.02K
R320
2.00K
R319
3.32K
6
5
7
U221B
TL072
2.80K
6.81K
R319
R320
1781R
CKT#
2.00K
3.32K
1780R
SEE ELECTRICAL PARTS LIST
PARTS WITHIN BOX
HAVE BEEN CHANGED
IN REAR OF MANUAL
OFFSET DAC
ALT_DEMOD
+5A
DECODER
ED_7
NC
NC
NC
+5A
NC
<31>
F4
+V_OUT
/BYPASS
/DPS_MSB
DEMOD
EA_2
EA_0
EA_1
/EWR
+15V
1780R–SERIES
DIFF GAIN/PHASE ALT MODE SWITCH <34>
PART OF A7 OSCILLATOR BOARD