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TM 11-6625-3145-14
Theory of Operation-318/338 Service
Table 4-3.
318 LSI-B (A04U140) INPUT SIGNALS
Signal
Names
Description
EN
Generates data latch strobe. The data latch state is by this low-level signal.
CS1X
Chip select for A04U140.
A1-A0
Address for data latch. (A1 = MSB, A0 = LSB)
EDBO-EDB5
Data for internal selector. (D5= MSB, D0= LSB)
10NCLK
10 ns period clock for internal divider.
SYSCLK
System clock to be compareo with gate clock in slow-clock detector circuit.
RDSTS
Read status for slow-clock detector circuit operation, trigger, and timer output reset.
Table 4-4.
318 LSI-B (A04U140) OUTPUT SIGNALS
Signal
Names
Description
INTCLK
Selected internal clock (20 ns - 500 ms).
10USCLK
10 us period clock for the test output on the A01 Input-A board.
CLKSLW
Compared result of slow-clock detector circuit. This signal condition is:
0 --- One period of SYSCLK is shorter than a half interval of gate clock.
1 --- One period of SYSCLK is longer than a half interval of gate clock.
TIMER
Constant interval timer with reset by RDSTS.
4-21
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 ...
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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 ...
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Page 555: ...PIN 058584 ...