TM 11-6625-3145-14
TABLE OF CONTENTS (cont.)
THEORY OF OPERATION (cont.)
Mainframe............................................................................................................................................... 4-4
ROM/Threshold Board (A05).......................................................................................................... 4-4
ROM ....................................................................................................................................... 4-4
Threshold Circuit .................................................................................................................... 4-4
MPU/Display Board (A06) .............................................................................................................. 4-4
Microprocessor....................................................................................................................... 4-4
RAMs...................................................................................................................................... 4-4
Display Controller and Character ROM.................................................................................. 4-4
Bus Buffer............................................................................................................................... 4-4
Key Control Logic ................................................................................................................... 4-4
Mother Board (A08) ........................................................................................................................ 4-4
Keyboard (A09) .............................................................................................................................. 4-4
CRT Board (A10)............................................................................................................................ 4-4
CRT ....................................................................................................................................... 4-4
CRT Circuit............................................................................................................................. 4-4
Power Supply (A11 AND A12)........................................................................................................ 4-5
Left-Side Panel ............................................................................................................................... 4-5
318S1/338S1 (A07) ........................................................................................................................ 4-5
Serial Input Comparator ......................................................................................................... 4-5
Serial I/O Controller................................................................................................................ 4-5
DETAILED CIRCUIT DESCRIPTIONS FOR THE 318 .......................................................................... 4-5
318 A01 Input A Board <1> <2> A02 Input B Board <3> <4>............................................................... 4-5
Overview ....................................................................................................................................... 4-5
Address Decoder <2> .................................................................................................................... 4-6
External Clock Input <4> ................................................................................................................ 4-6
External Clock Comparator <4> ..................................................................................................... 4-6
Clock Selector <4> ......................................................................................................................... 4-6
Glitch Control <2> <3> <4> ............................................................................................................ 4-7
Pipeline Register <1> <3>.............................................................................................................. 4-7
Word Recognizer <1> <2> <3> ...................................................................................................... 4-7
Data Threshold Buffer <4> ............................................................................................................. 4-7
Probe Compensation <4> .............................................................................................................. 4-8
318 A03 ACQ Control Board <5> <6> <7>............................................................................................. 4-8
I/O Address Decoder <6>............................................................................................................. 4-10
Qualify/SQRAM Data Register <5>.............................................................................................. 4-11
Qualify Logic <5> <6> .................................................................................................................. 4-12
START/STOP Logic <6> .............................................................................................................. 4-12
Trigger Qualify Flip-Flop <6>........................................................................................................ 4-12
Retiming Clock <6> ...................................................................................................................... 4-12
Clock Qualify Flip-Flop <6> .......................................................................................................... 4-12
Strobe Generator <6>................................................................................................................... 4-12
External or Glitch Trigger Circuit <7> ........................................................................................... 4-13
Retiming Flip-Flop <6> ................................................................................................................. 4-13
Address Buffer <7> ...................................................................................................................... 4-14
Trigger Sequencer RAM <7> ....................................................................................................... 4-14
vii
Summary of Contents for 318
Page 119: ...318 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 182: ...338 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 253: ...318 ___________________ TROUBLESHOOTING TREES ...
Page 344: ...338 TROUBLESHOOTING TREES ...
Page 517: ...TM 11 6625 3145 14 318 338 4434 923 318 Block Diagram ...
Page 518: ...TM 11 6625 3145 14 318 338 4434 924 338 Block Diagram ...
Page 519: ...TM 11 6625 3145 14 318 338 4434 925 318 Acquisition Module Wiring Diagram ...
Page 520: ...TM 11 6625 3145 14 318 338 4434 926 318 338 Mainframe Wiring Diagram ...
Page 521: ...TM 11 6625 3145 14 318 338 4434 926 338 Acquisition Module Wiring Diagram ...
Page 522: ...TM 11 6625 3145 14 318 338 4434 928 Figure 9 1 318 A01 Input A Board Component Locations ...
Page 526: ...TM 11 6625 3145 14 ...
Page 528: ...TM 11 6625 3145 14 Figure 9 3 318 338 A03 ACQ Control Board Component Locations ...
Page 532: ...TM 11 6625 3145 14 ...
Page 536: ...TM 11 6625 3145 14 ...
Page 538: ...TM 11 6625 3145 14 ...
Page 539: ...TM 11 6625 3145 14 ...
Page 540: ...TM 11 6625 3145 14 ...
Page 541: ...TM 11 6625 3145 14 ...
Page 542: ...TM 11 6625 3145 14 Figure 9 8 318 338 A10 CRT Board Component Locations ...
Page 544: ...TM 11 6625 3145 14 Figure 9 9 318 338 A11 Inverter Board component Locations ...
Page 546: ...TM 11 6625 3145 14 Figure 9 10 318 338 A12 Regulator Board Component Locations ...
Page 551: ...TM 11 6625 3145 14 Figure 9 12 338 A01 Input A Board Component Locations ...
Page 553: ...TM 11 6625 3145 14 318 338 SERVICE ...
Page 554: ......
Page 555: ...PIN 058584 ...