Table 4-6. Computer Diagnostic/Alignment Program -- Continued

Table 4-6. Computer Diagnostic/Alignment Program -- Continued - TM-5-6675-308-340165

Table 4-6. Computer Diagnostic/Alignment Program -- Continued - TM-5-6675-308-340167

TM-5-6675-308-34 Position and Azimuth Determining System An/USQ-70 Manual
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ARMY TM 5-6675-308-34

MARINE CORPS TM 08837A-34/2

Table 4-6. Computer Diagnostic/Alignment Program - Continued

Malfunction

indication/corrective

action

Normal indication

Test procedure

EXECUTE switch-indicator flashes.

2b. Press EXECUTE switch-indica- EXECUTE switch-indicator lights

Replace cards in sequence given:

tor to on

TTY prints out:

Control no. 3 circuit card assembly

PADS SOLID STATE DIAGNOS-

TIC ALIGNMENT PROGRAM

I/O discrete circuit card assembly

PROGRAM CHECKSUM XXXXXX

SELECT TEST MODE

Control no. 2 circuit card assembly

This indicates solid state memory. Control no. 1 circuit card assembly

Select test mode per table 4-7 step

2b, 4-11 step 2d, or 4-14 step 2c. 16-bit data circuit card assembly A2

Bypass further loading procedures

unless a new program load is required If incorrect checksum, continue with

step 2c

No TTY response:

This indicates either core memory

requiring diagnostic a l i g n m e n t

tape loading or solid state mem-

ory unloaded. Proceed to step 2c

EXECUTE switch-indicator re-

2c. Press EXECUTE switch-indica-

EXECUTE switch-indicator goes off

mains on:

tor to off to halt computer

Same card replacement as step 2b

2d. Install part 1 (of 2) of PADS

diagnostic alignment tape num-

ber 877418-5 on tape reader. Do

not tape program tape to takeup

reel. Manually advance tape be-

yond readable tape leader

2e. S e t t a p e r e a d e r S P O O L I N G

switch to ENABLE

2f. Press MEMORY LOAD switch- MEMORY LOAD switch-indicator

indicator to on

lights. Tape reader reads first tape

section and stops in approximately

minute

NOTE

Press MEMORY LOAD switch-indi-

cator off and back on if a stop code

is reached prior to tape data being

loaded.

2g. Press MEMORY LOAD switch- MEMORY LOAD switch-indicator

indicator to off

goes off

2h. Press VERIFY switch-indicator V E R I F Y s w i t c h - i n d i c a t o r l i g h t s .

VERIFY ERROR switch-indicator

lights and tape reader stops during

to on to check next tape section

Tape reader reads next tape sec-

read indicating improper memory

against memory contents. (First

tion and stops in approximately 1

load or memory failure

minute

two tape sections are identical)

4-51

Change 6

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