TM 11-6625-3145-14
Maintenance: Troubleshooting-318/338 Service
When I/O Looping is selected, only those selected OUT instructions (subroutines), including one of the addresses listed
below, will run. Unless the STOP key is pressed, this test will continue looping without displaying the result of the
verification. In this case, the user should use an oscilloscope to observe the Acquisition circuit board.
PORT ADDRESSES (HEX)
Address
Content of Looping Test
55
write WA into High-speed memory.
When ERROR is selected, looping will occur only if errors are detected. If no errors are detected, the ERROR looping test
will run through its tests only once, and the results of the verification will be displayed on the CRT just as if the looping field
had been selected to OFF. If errors are detected, the ERROR Looping function is available for the read cycle of the test,
and the result of the verification will appear on the screen. Refer to the
of this manual for and explanation of
error codes.
Description: A single acquisition is simulated to check the trigger sequencer operation. Pseudo data is generated in
exactly the same way used in the WR and ACQ tests, and applied to the latches on the A01 INPUT-A and INPUT-B
boards.
The words, WA, WB, and WC are set to 01
hex
, 02
hex
and 03
hex
respectively. Then full trigger sequence, 00005*WA FLW’D
BY:WB RESET ON:WC is selected with 16 clocks of delay to stop after the trigger recognition.
The data AAAXBCAAXAAAXABXABCXABCXABCXABC is supplied to the WR on the A01 and the A02 boards and to the
ACQ Memories on the A04 ACQ MEMORY board. SYSCLK is generated by the MPU by writing at I/O address 4A
hex
,
which is into the timebase U140 on the A04.
The operation of the Trigger Sequencer is observed by the MPU by reading the interrupt and the ACO status. The MPU
checks these conditions on every clock pulse, and if there are any unexpected events the MPU displays an error message.
After the end of the acquisition (all flags are detected at certain clocks), the MPU reads the data from the ACQ Memories
on the A04 board, and compares them with the word sequence applied. An error message is displayed if there are
differences.
318S1 SERIAL ANALYSIS/RS232C/NVM
14. BATTERY TEST
Program: TSTBTT
Function:
Power on - TSTBTT checks the battery voltage to see if it is more or less than 2.2 volts.
Troubleshooting - None
7-29
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 ...
Page 554: ......
Page 555: ...PIN 058584 ...