Troubleshooting and Repair
136
025-9416
Reformatting the RAM Disk
Follow the procedure below to test, format, and copy the standard databases onto the RAM disk:
[ ] 1.
Ensure that a backup of the current databases and voice prompts is available. The data
will need to be restored following the reformat procedure. Refer to the
Model 640
Operating and Programming Manual
(Part No. 025-9417) for details.
[ ] 2.
Verify that the ROM disk EPROMs (Part No. 601-0329) are version 2.01 or later.
[ ] 3.
Power down the paging terminal.
[ ] 4.
If this reformat coincides with a ROM disk software update, remove the current ROM
disk (Part No. 702-9389) and replace it with the new one.
If only the ROM disk EPROMs are being updated, remove the ROM disk. Then remove
the EPROMs from the disk and replace them with the new ones. The new chips should
be installed in U1-U4.
[ ] 5.
Verify that the BIOS version is 1.0 for the currently shipping V53 microprocessor (Part
No. 601-0696). The BIOS EPROM is located to the immediate left of the RAM disk on
the main processor board.
[ ] 6.
Install JP9 and JP10 on the main processor board. The jumpers are located together on
the right rear corner of the board, next to the ROM disk.
[ ] 7.
Power-up the paging terminal.
[ ] 8.
The front panel COM and MODEM lights (on the left) blink in the sequence shown in
Table 28.
Table 28. LED Operation during RAM Reformat Procedure
LED Blinking Sequence
Time Between
Sequences
Description
COM + MODEM twice
1 sec after power up
CPU self test
COM + MODEM twice
30 seconds
COM once
5 seconds
Start of stage 1
COM + MODEM twice
50 seconds
COM once
5 seconds
End of stage 1
COM + MODEM twice
10 seconds
COM + MODEM twice
15 seconds
COM twice
10 seconds
Start of stage 2
COM + MODEM twice
10 seconds
COM twice
5 seconds
End of stage 2
COM + MODEM twice
10 seconds
COM + MODEM twice
15 seconds
COM three times
5 seconds
Start of stage 3
COM + MODEM twice
COM three times
25 seconds*
End of reformat
*
This sequence repeats every 10 seconds until the paging terminal is turned off.
Summary of Contents for 640 DAPT XTRA
Page 2: ......
Page 6: ...Statements vi 025 9416...
Page 20: ...Introduction 8 025 9416...
Page 26: ...Specifications 14 025 9416...
Page 96: ...Installation 84 025 9416...
Page 126: ...Optional Equipment Installation 114 025 9416...
Page 134: ...Voice Prompts 122 025 9416...
Page 174: ...Parts Lists and Schematics 162 025 9416 Schematic...
Page 175: ...Parts Lists and Schematics 025 9416 163...
Page 176: ...Parts Lists and Schematics 164 025 9416...
Page 177: ...Parts Lists and Schematics 025 9416 165...
Page 178: ...Parts Lists and Schematics 166 025 9416...
Page 179: ...Parts Lists and Schematics 025 9416 167...
Page 180: ...Parts Lists and Schematics 168 025 9416...
Page 181: ...Parts Lists and Schematics 025 9416 169...
Page 182: ...Parts Lists and Schematics 170 025 9416 Silkscreen...
Page 185: ...Parts Lists and Schematics 025 9416 173 Schematic...
Page 186: ...Parts Lists and Schematics 174 025 9416...
Page 187: ...Parts Lists and Schematics 025 9416 175...
Page 188: ...Parts Lists and Schematics 176 025 9416...
Page 189: ...Parts Lists and Schematics 025 9416 177...
Page 190: ...Parts Lists and Schematics 178 025 9416 Silkscreen...
Page 193: ...Parts Lists and Schematics 025 9416 181 Schematic...
Page 194: ...Parts Lists and Schematics 182 025 9416...
Page 195: ...Parts Lists and Schematics 025 9416 183...
Page 196: ...Parts Lists and Schematics 184 025 9416 Silkscreen...
Page 198: ...Parts Lists and Schematics 186 025 9416 RAM Disk 702 9386B ROM Disk 702 9389B...
Page 199: ...Parts Lists and Schematics 025 9416 187 TNPP Interface 702 9362C 2...
Page 200: ...Parts Lists and Schematics 188 025 9416 Terminal Block Adapter 702 9470B...
Page 201: ...Parts Lists and Schematics 025 9416 189 CONFIGURATION DIAGRAMS Dual Trunk Telco DID 024 0076A...
Page 202: ...Parts Lists and Schematics 190 025 9416 Dual Trunk Telco End to End 024 0077A...
Page 203: ...Parts Lists and Schematics 025 9416 191 Dual Trunk Telco E M 024 0078A...
Page 204: ...Parts Lists and Schematics 192 025 9416 Dual Trunk Telco Ground Start 024 0079A...
Page 210: ...025 9416...
