SAMPLE & HOLDSDACLATCHES
VECT_GAIN
<7>
A1
ED_[0..7]
<6> H4
V_RO_DATA_WFM1 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
J130
CONNECTS
J130
<11> D1
<14> F4
<15> G5
FIELD_1
SYNC_OSC2
SYNC_OSC1
/W_RO_EN
VECT_GAIN
/ERSTO
ED_4
ED_5
ED_6
ED_7
+5V
<7>
A2
/ERSTO
ED_[0..7]
ED_0
ED_1
ED_2
ED_3
ED_4
ED_5
ED_6
ED_7
D0 (LSB)
18
D1
17
D2
16
D3
15
D4
14
D5
13
D6
12
D7
11
D8
10
D9
9
D10
8
D11
7
D12
6
D13
5
D14
3
D15 (MSB)
2
+V 26
IOUT 23
SJ 21
TRIM 1
GND 22
-V 28
MSBADJ 27
IBPO 25
VOUT 19
RFB 20
U231
PCM54
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
U220
74HC273
+12V2
R232
21.0K
13
12
14
U251D
TL074
C250
.1UF
10 11
9
U245C
DG211
6
5
7
U251B
TL074
C248
1UF
7 6
8
U245B
DG211
W_HORZ_POS
VECT_GAIN
A2
<11>
G4
<7>
E4 F2
<13>
12
13
14
U810D
TL074
V_CURSOR_TOP
<11>
C906
.1UF
C252
.1UF
9
10
8
U251C
TL074
2 3
1
1
21
3
45
U245A
DG211
W_HORZ_GAIN
+12V2
-12VDCPL
+5VD
R255
15.0K
R256
10.0K
NC
NC
GAIN
DAC
R231
1K
-12V2
X
3
B
10
C
9
INH
6 VEE 7
GND 8
X0 13
X1 14
X2 15
X3 12
X4 1
X5 5
X6 2
X7 4
VCC 16
A
11
U708
4051
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
U217
74HC273
/ERSTO
ED_0
ED_1
ED_2
ED_3
ED_4
ED_5
D1
NC
NC
<15> G5
<5> F5
<5> D4

<5> <7> <11>

D5 E3
ALT_DEMOD
LUMINANCE
CURS_SEL
ED_0
ED_1
ED_2
ED_3
BOARD
A11
A1
INTERCONNECT
TO J531
<44>
NOTE:
SEE TABLE 12
FOR SIGNAL
ORIGIN OR
DESTINATION
<7> F2
<10> H3
<5> C5
CURS_TOP/BOT
TRIG_EN
VEC_R-Y
/VH_HRDW_CTRL
EA_0
EA_1
EA_2
DECODER
LATCH SELECT
CLK0
CLK1
CLK2
CLK[0..2]
+5VD
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
U207
74HC138
A2
<7>
CLK[0..2]
/ERSTO
ED_6
ED_7
ED_0
ED_1
ED_2
ED_3
D1
<11>
T_CUR+LN_SELD1
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
U705
74HC273
C710
.1UF
C810
.1UF
C711
.1UF
+5VD
R710
100.0
A4
<6>
H2
<7>
6
5
7
U605B
TL074
9
10
8
U605C
TL074
W_VERT_GAIN
W_VERT_POS_3
H2
<7>
D4
<7>
13
12
14
U605D
TL074
2
3
1
4
1
1U810A
TL074
W_VERT_POS_1
V_CAL_TOP
+12V1
-12V1
C708
.1UF
C808
.1UF
-12V1
R808
1.50K
5.1V
E2
VR905
D-0195
<11> B4
<13><11> E4
SLOW_SWP_EN
X25
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
U274
74HC273
X5
/ERSTO
ED_4
ED_5
ED_6
ED_7
ED_0
ED_1
ED_2
A3
<11>
A2
<14> D4
<14> C4
<9> A1
<10> B2
<9> A1
<10>
F4
<11>
RGB_STAIR
/FLD_SCH_BLK
+V_OUT
/RGB_EN
/REM_SYNC_EN
REM_SYNC
LINESEL_RETR
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
J147
/FLD_CHROMA_SW
CONNECTS
BOARD
A11
A1
INTERCONNECT
J147
TO J547
<44>
NOTE:
SEE TABLE 12
FOR SIGNAL
ORIGIN OR
NC
NC
<9> D1
<9> F2
<4> C4
<9> G3
<7> E3
<9> C3
<5> B3
<9> E4
<14> F4
<14> F4
REF_SYNC
V_SYNC
CAL_OSC
-REF_H_SYNC
CAL_TIMING
AFC_SYNC
PIX_SIG
INPUT_H_SYNC
BRUCH
/ERSTO
ED_3
ED_4
ED_5
ED_6
ED_7
ED_0
<11> B4
<11> C5
<11> B4

<4> F4 <14>

<11> A3 <13>

<11> B4
INT/EXT
/EXT_HORZ_EN
X100
X10
X50
X20
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
U275
74HC273
D4
A4
C707
.1UF
C908
.1UF
H2
<7>
G4
<7>
2
3
1
4
1
1U605A
TL074
9
10
8
U810C
TL074
W_VERT_POS_2
V_CURSOR_BOT
+12V1
-12V1
D4
<7>
5
6
7
U810B
TL074
V_CAL_BOT
SEE ELECTRICAL PARTS LIST
PARTS WITHIN BOX
HAVE BEEN CHANGED
IN REAR OF MANUAL
C907
.1UF
B3
B2
C3
<13> B1

<10> C4 <11>

<9> C3
<9> B4

<7> C2 <10>

<9> C3 <10>

<10> A3
<11> C5
2L/F
DIR/AFC
1L/F
LINE
FIELD
SLW_SWP_+/-
FLD2/FLD1
/ERSTO
ED_1
ED_2
ED_3
ED_4
ED_5
ED_6
ED_7
NC
NC

<5> <7>

A3 F1
<11> C1
<11> F2
/WFM_BLANK
H_RO_DATA_WFM
/WLS_FIELD
-15V
+160V
+15V
DESTINATION
1780R–SERIES
+60V
+15V
HORIZONTAL LATCHES & DAC <12>
PART OF A2 WAVEFORM BOARD