8
A
.
B
.
4>
1A
3M
<S>
P2502*.
MB CNTL WR <-
MB RETURN
< r
FLIC HR < -
MB DATA
< r
ADDRO
4
ADDR1 <-
ADDR2
4r
ADDR3 4
SLIC RD <-
SLIC HR <-
RO REQ <-
RO BLANK <-
RO CH i POS EN < -
RO CH 2 POS EN 4 -
RO CH 3 POS EN < -
RO CH 4 POS EN 4 -
RO TR SEP EN
< r
TB CAL 4 -
CIRCUIT
NUMBER
+5V
GNO
US01
16
8
U502
16
8
U503
16
B
U600
40
20
U601
8
4
U602
10. 13. 16.
25. 28. 31
1. 21
U603
1. 16
8
U604
1. 16
8
U606
14
7
A T R I G * -
FROM H413
<£>
B T R I G * -
FROM R415
<?>
6M
PROCESSOR INTERFACE
BH LIM I T FROM H I 102
7 F < 0 RO FREEZE FROM U 173-11
VERT COMP FROM U 702-7
M<|>
U A A SHP E N D .
M
FROM R37B
6M <S>B SHP E ND.
FROM R380
FROM R416
6M
SRO CLK
TO 0171. R171 „ / X
R176, U 171-3. 6B \ y
S U 1 7 2 -3
SRI CLK
vv
U 302-3? U 303-3 ^ ^
|
3N <S> F R O M M S *
T 0 1H1104TTL SA < ^>
1N<I> F R 0 M ER 3 8 7 *
BEAM FIND TO: R730. U701-21
U 8 0 2 -1 4 BB<§> R2705 8 E < ^
R655
820
SR DATA TO: C125. U 171-2 4 B < £>
■SR DATA TO: R36B. U 302-2 1A < § >
I f
U606A
7417
TRIGGER LOGIC
i
U602
I
FAST
LOGIC
6 IC
,
DLY12
DLY2
- RO CH
1 POS EN TO R212. U202-10>|
2B
- RO CH
2 POS EN TO R222. U 202-11 I
3B
- RO CH
3 POS EN TO R232. U 2 01-9 f
5B N X
►
RO CH
4 POS EN TO R242. U 201-10J
6B
* RO TR SEP EN TO U 2 0 1 -1 * 8C
<s>
- TB CAL TO R1170 3A <§>
VBB3
FROM
.
U 6 0 4 -1 1 ■
U604B
10116
m
U604C
10116
A10
2246 1Y AND 2246 MOD A
__________&______________ &_
REV JUNE 1991
Summary of Contents for 2246 1Y
Page 13: ...2246A Service 7062 01 X The 2246 1Y or 2246 Mod A Portable Oscilloscope ...
Page 35: ......
Page 139: ......
Page 185: ......
Page 187: ......
Page 278: ...Figure 9 5b Detailed 2246 1Y or 2246 Mod A block diagram part 2 R E ...
Page 287: ......
Page 304: ...A D D J U N 1991 ...
Page 311: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 1 0 V r l III B f e I l i 6555 39 ...
Page 319: ......
Page 320: ......
Page 321: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 2 SET READOUT CONTROL CCW OFF 6555 40 ...
Page 323: ......
Page 324: ......
Page 326: ...A B C P E F G ...
Page 327: ......
Page 331: ......
Page 337: ......
Page 340: ......
Page 343: ...C l rti ...
Page 347: ...BEV JUNE 1991 7062 18 ...
Page 349: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 6 6555 43 I ...
Page 355: ...I BOARD LOCATION 8K 8J 8H 7H 8H 8H 7J 8D 7H 8H 8J 8J 7K 8K 10D 6L 6K 6L 6K 6G 5H I ...
Page 362: ......
Page 372: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 9 MORE ...
Page 373: ... 6555 72 6557 88 ...
Page 375: ......
Page 380: ...WAVEFORMS FOR DIAGRAM 10 ...
Page 387: ...WAVEFORMS FOR DIAGRAM 11 6555 73 6557 48 ...
Page 394: ...WAVEFORMS FOR DIAGRAM 12 2246 1Y and 2246 Mod A Service i f I S 1 f c i 4 i ...
Page 395: ...WAVEFORMS FOR DIAGRAM 12 cont 2246 1Y and 2246 Mod A Service ...
Page 397: ......
Page 398: ......
Page 400: ...REV JUNE 1991 7062 39 ...
Page 401: ......
Page 403: ......
Page 404: ......
Page 406: ...B 2246 IV AND 2246 MOD A ...
Page 407: ......
Page 408: ......
Page 414: ... _ 5 ...
Page 415: ...2246 1Y 2246 MOD A ...
Page 416: ......
Page 423: ...2246 1Y 2246 MOD A ...
Page 424: ...2246 1Y 2246 MOD A ...
Page 425: ......
Page 433: ......