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blast.way
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;PROCEEDURE FOR DEALING WITH PROMS FOR THE 2020 SYSTEM
;TO ERASE PROMS:
Put the proms in the "ultra-violet" eraser.
Set the timer to 17 minutes..when the "UV" light goes out,
the proms should be erased
;TO BLAST PROMS:
1) Power on the prom blaster
2) Check that the green "socket adapter" is NUMBER 715-1362
if not ==> go to STEP ERROR 1
3) Push toggle switch to set "RDR IND"
4) Pull out the paper tape reader from the side of the blaster
5) Find the section of the paper tape that looks like:
@ @
@ @
@ @
@@
@ @
@ @
@ @
@ @
@ @
@ @
@@
@ @
@ @
@ @
@ @
@ @
@ @
@@
@ @
@ @
@ @
6) Put the middle of this section of the tape onto the paper tape reader
and close the top of the reader. The tape moves towards the operator
(you), so the blank part of the tape is towards the front of the
blaster, and the data is towards the rear.
7) There is a push button that says "PROG" on the top of it, and "VERIFY"
on the bottom of it. The "PROG" side of the button should have its
"RED" light on. If it is not on, push that button and the "YELLOW"
VERIFY light will go out, and the "RED" PROG light will come on.
8) Push the button that says "MANUAL". The "BLUE" MANUAL light will come
on.
9) Push the button that says "START". The "GREEN" START light will come
on.
10) Find the "FWD" and "REV" buttons above the 0-7 white buttons.
11) Look at the 3 digit display above these 2 buttons.
12) Push the FWD button until you see 347,333, or 275 in the 3 digit
display.
13) Push the FWD button repeatedly, until a 176 appears in the 3 digit
display.
14) Push the FWD button 1 time. IF the number in the lights is still
176, then go back to step 13..
IF the number in the lights is not 176, then go on to step 15..
15) Push "RESET"
16) Push the toggle switch to "RDR RAM"
17) Push the "AUTO" button. the "YELLOW" AUTO light will come on, and the
BLUE MANUAL light will go off.
18) Push "START". The paper tape will start moving.
19) When the tape stops moving;
1)The "STOP" light should be on.
2)The "WORD COUNT" in the upper right corner of the blaster
should be "0000".
If either of these is not true, ===> go to STEP ERROR 3
20) Push the RESET button
21) Look at the green socket adapter in the lower right corner of the
blaster. Put the little green lever straight up.
22) Put the prom chip "2716's" in the socket, pin 1 up.
23) Put the green lever down.
24) Push the toggle switch to "RAM ROM2"
25) Push "START". The GREEN "START" light should be on. The "WORD COUNT"
should be changing rapidly.
26) IF the "WORD COUNT" immediately stopped with a number that is not
"0000", ===> go to STEP ERROR 3.
27) The prom chip is blasted when after about 4-5 minutes, the
"WORD COUNT" stops changing and contains "0000".
28) Look at the "START/STOP" lights.
If the "START" light is still on, ===> go to STEP ERROR 4.
If the "STOP" light is on, ==> go on to STEP 29.
29) Push the "PROGRAM/VERFIY" button. The "YELLOW" VERIFY light
should come on.
30) Push the "START" button.
31) The "WORD COUNT" should stop at "0000".
If the "WORD COUNT" is not "0000", ===> go to STEP ERROR 5.
If the "WORD COUNT" is "0000" and the "GREEN" START light is
still on, ===> go to STEP ERROR 5.
If the "WORD COUNT" is "0000" and the "STOP" light is on,
==> go on to STEP 32.
32) You have verified correctly.
33) Put a label on the prom chip.
34) Remove the chip from the blaster.
35) To blast several copies of the same prom, ===> go back to STEP 20.
ERROR RECOVERY PROCEEDURES DURING PROM BLASTING
ERROR 1)
The blaster is not set up to blast "2716" prom chips.
Power off the blaster.
Remove the top cover of the blaster.
Find a pair of modules; 909-1174-1 and INT2704/08.
If they are not already in the blaster, find them somewhere else.
Insert module "INT 2704/08" into slot 5 (from the front of the blaster)
Insert module "909-1174-1" into slot 6 (from the front of the blaster)
Find module "950-0019" already in the blaster. There is a toggle switch
on the top of this module, visible without removing the module. The
2 positions of the switch are: "INVERT" and "NORMAL". Put the switch
in the "invert" position.
Remove module "909-1174-1" (You may have just put this in the blaster).
In the lower right hand corner of the module is a blue jumper. Put
the jumper into the "2048" position. Put the module back into the
blaster.
Find the "socket adapter" "715-1362". Insert it in the front of the
blaster.
Put the cover back on.
Power on.
Go to STEP 3) of the main proceedure.
ERROR RECOVERY DURING PROM BLASTING
ERROR 2)
If the "WORD COUNT" in the upper right hand corner of the blaster is
not "0000", then the paper tape has a crease in it, or the holes
are blocked by old punch outs, or something. Examine the tape under
the reader head to see whats wrong with it.
If the "STOP" light was not on, push the "RESET" button.
The "STOP" light will now be on.
Push the "PROGRAM/VERIFY" button. The "VERIFY" light will now come on.
Push "START". The tape will be read again.
If the tape stops moving, and the "STOP" light is not on, something
is wrong with the tape, or the blaster itself. If the "STOP" light
comes on, everything is ok. Push the "PROGRAM/VERIFY" button. The
program light should come on. Now go to STEP 21 of the main
proceedure.
ERROR 3)
The prom chip was not completely erased.
Push "RESET"
Remove the prom chip from the blaster, and put it into the "to be
erased" pile.
Go to STEP 21 of the main proceedure.
ERROR 4)
Push the "START/STOP" button.
The STOP light will come on.
Go to STEP 26 of the main proceedure.
ERROR 5)
That prom chip is bad.
Remove the chip from the blaster.
Mark it bad, and do with it, whatever you do to bad chips.
Go to STEP 21 of the main proceedure.