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POWER BOARD
CONNECTOR
PLUG J41
POWER BOARD
CONNECTOR
PLUG J42
POWER BOARD
CONNECTOR
PLUG J42
POWER BOARD
CONNECTOR
PLUG J42
POWER BOARD
CONNECTOR
PLUG J43
POWER BOARD
CONNECTOR
PLUG J43
POWER BOARD
CONNECTOR
PLUG J43
POWER BOARD
CONNECTOR
PLUG J41
POWER BOARD
CONNECTOR
PLUG J43
POWER BOARD
CONNECTOR
PLUG J43
CHECK 40 VDC
INPUT FROM
DC BUS BOARD
CHECK +15
VDC SUPPLY FROM
POWER BOARD
CHECK +5 VDC
SUPPLY FROM
POWER BOARD
CHECK -15 VDC
SUPPLY FROM
POWER BOARD
CHECK +5 VDC
ARCLINK SUPPLY
FROM POWER BOARD
CHECK +5 VDC
“RS-232” SUPPLY
FROM POWER BOARD
CHECK +15 VDC
SPI SUPPLY FROM
POWER BOARD
CHECK +40 VDC
INPUT FROM
DC BUS BOARD
CHECK +5 VDC
SPI SUPPLY FROM
POWER BOARD
CHECK +20 VDC STT
SUPPLY FROM
POWER BOARD
2 (+)
1 (-)
1 (+)
5 (-)
3 (+)
5 (-)
2 (+)
5 (-)
5 (+)
10 (-)
4 (+)
9 (-)
6 (+)
11 (-)
4 (+)
3 (-)
3 (+)
12 (-)
7 (+)
1 (-)
477 (+)
475 (-)
225 (+)
222 (-)
221 (+)
222 (-)
222 (+)
223 (-)
274 (+)
273 (-)
226 (+)
228 (-)
266 (+)
267 (-)
478 (+)
476 (-)
268A (+)
262 (-)
345 (+)
346 (-)
38 – 42 VDC
+15 VDC
+5 VDC
-15 VDC
+5 VDC
+5 VDC
+15 VDC
38 – 42 VDC
+5 VDC
+20 VDC
TROUBLESHOOTING & REPAIR
F-25 F-25
POWER WAVE 455/R
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TABLE F.4 – POWER BOARD VOLTAGE CHECKS
POWER BOARD TEST (CONTINUED)
CHECK POINT
LOCATION
TEST
DESCRIPTION
CONNECTOR
PLUG PIN NO.
LEAD NO. OR
IDENTITY
NORMAL
ACCEPTABLE
VOLTAGE
READING
475 477
225
222
221
222
223
222
273
274
228
226
267
266
476 478
262
268A
345
346