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Maintenance—2246 1Y and 2246 Mod A Service
Table 6-8
Measurem ent Processor I/O M em ory Map
Address range (A19
1^-_____
D irto rw
- A0)
Signal name and
description
Signal
source
0110
0000
0000
o x x x
x x x x
LED CATH CLK —Latches cathode
data to Front-Panel LEDs.
U2501 pin 25
(Diagram 8)
0110
0000
0000
1XXX
x x x x
LED ANODE CLK—Latches anode
data to Front-Panel LEDs.
U2501 pin 27
(Diagram 8)
0110
0000
0001
o x x x
x x x x
RO BUF WR —Latches Readout
Processor control datas.
U2501 pin 28
(Diagram 8)
0110
0000
0001
1XXX
x x x x
RO BUF
R D —
Enables Readout RAM
data onto bus D0-D7 (used for diag
nostics o nly).
U2501 pin 29
(Diagram 8)
0110
0000
0010
o x x x
xooo
DAC LSB CLK —Latches the least
significant byte of data to the D -to -A
Converter.
U2517 pin 14
(Diagram 8)
0110
0000
0010
o x x x
X001
DAC MSB CLK —Latches the most
significant byte of data to the D -to -A
Converter.
U2517 pin 14
(Diagram 8)
0110
0000
0010
o x x x
X010
POT MUX CLK —Latches channel
selection code for pot multiplexer.
U2517 pin 13
(Diagram 8)
100X
x x x x
x x x x
x x x x
xooo
MB CNTL
W R
—Write enables Pro
cessor Interface circuitry (Diagram 4).
U2518 pin 15
(Diagram 8)
100X
0000
x x x x
x x x x
xooo
Sets BEAM FIND (U503 pin 7) high ON.
U503 pin 7
(Diagram 4)
100X
x x x x
x x x x
x x x x
X001
SW BD SR LOAD —Loads column data
into switch board registers.
U2518 pin 14
(Diagram 8)
100X
x x x x
x x x x
x x x x
X010
SW BD SR SHIFT —Shifts data in
switch board registers to the SW
BD DATA signal line.
U2518 pin 13
(Diagram 8)
100X
x x x x
x x x x
x x x x
X011
SLIC WR -W rite to SLIC, U600
Diagram 4.
U2518 pin 12
(Diagram 8)
6-23
Содержание 2246 1Y
Страница 13: ...2246A Service 7062 01 X The 2246 1Y or 2246 Mod A Portable Oscilloscope ...
Страница 35: ......
Страница 69: ...Theory of Operation 2246 1Y and 2246 Mod A Service 15 V 6081 07 3 32 Figure 3 4 Simplified Sweep Circuit ...
Страница 91: ...Theory of Operation 2246 1Y and 2246 Mod A Service 6081 12 6557 99 3 54 Figure 3 9 Power Supply block diagram ...
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Страница 278: ...Figure 9 5b Detailed 2246 1Y or 2246 Mod A block diagram part 2 R E ...
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Страница 304: ...A D D J U N 1991 ...
Страница 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 ...
Страница 314: ...15 14 13 12 11 10 9 8 7 6 5 12 11 10 9 8 7 AT117 A TI 271 1 2 3 4 5 6 6555 70 Figure 9 8 Hybrid pin identifiers ...
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Страница 321: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 2 SET READOUT CONTROL CCW OFF 6555 40 ...
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Страница 326: ...A B C P E F G ...
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Страница 343: ...C l rti ...
Страница 344: ...WAVEFORMS FOR DIAGRAM 5 2246 1Y and 2246 Mod A Service HORIZ MODE A A SEC DIV 2M S HOLDOFF MIN CCW ...
Страница 345: ...HORIZ MODE ALT A SEC DIV 2M s B SEC DIV 5 mS HOLDOFF MIN DELAY INTENSIFIED ZONE STARTS MIDSCREEN ...
Страница 347: ...BEV JUNE 1991 7062 18 ...
Страница 349: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 6 6555 43 I ...
Страница 354: ...A L B i C 1 D 1 E i F i G 1 2 3 4 5 6 7 8 2246 1Y AND 2246 MOD A _________A fc A A REV JUNE 1991 7062 19 ...
Страница 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 ...
Страница 362: ......
Страница 372: ...2246 1Y and 2246 Mod A Service WAVEFORMS FOR DIAGRAM 9 MORE ...
Страница 373: ... 6555 72 6557 88 ...
Страница 375: ......
Страница 376: ...SCHEM LOCATION BOARD LOCATION 2E 2B 7F 4B 4J 5D 3J 5C 4L 6D 3L 6C 5L 7D 3L 7D 3M 7D 5M 7D IB 1A 1C 1A 2B 1A 3B 1A ...
Страница 380: ...WAVEFORMS FOR DIAGRAM 10 ...
Страница 387: ...WAVEFORMS FOR DIAGRAM 11 6555 73 6557 48 ...
Страница 394: ...WAVEFORMS FOR DIAGRAM 12 2246 1Y and 2246 Mod A Service i f I S 1 f c i 4 i ...
Страница 395: ...WAVEFORMS FOR DIAGRAM 12 cont 2246 1Y and 2246 Mod A Service ...
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Страница 400: ...REV JUNE 1991 7062 39 ...
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Страница 406: ...B 2246 IV AND 2246 MOD A ...
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Страница 414: ... _ 5 ...
Страница 415: ...2246 1Y 2246 MOD A ...
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Страница 423: ...2246 1Y 2246 MOD A ...
Страница 424: ...2246 1Y 2246 MOD A ...
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