C3
TM 9-4935-481-14-1
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
MCP
Connect 1W2-P2 to J7.
214
CIP
Wait until INHIB lamp illuminates.
233
Multiply value recorded in step 215 by +0.3357 and record for use in step 242.
215
DMM
Observe a reading between -0.2230 and -0.2650 Vdc, record for use in steps 217 and 234.
234
DMS switch to ON. Momentarily actuate the TEST START switch.
216
TTS
Momentarily actuate TEST START/STOP pushbutton (power off).
235
PP
TP
217
Multiply the value recorded in step 215 by +0.200, record for use in step 222.
236
OSC
Connect the white probe to 1A7A1-J3.
218
Connect a jumper between J1 and J2 of the 1W4 cable. (16 gauge wire).
237
MCP
SELECTOR A switch to D24.
219
Momentarily actuate TEST START/STOP pushbutton (power on).
TTS
238
MCP
SELECTOR B switch to E18.
220
Observe TESTING lamp illuminated.
TTS
239
CIP
COUNTER INHIBIT(SEC) dial to 06.00.
221
Wait until INHIB lamp illuminates.
CIP
240
PPE
Momentarily actuate TEST START switch (power on).
222
Adjust R6 in the OAF to the value calculated in step 217 15%.
OAF
241
CIP
Observe INHIB lamp illuminated.
DMM
223
Momentarily actuate TEST START/STOP pushbutton (power off).
242
TPS
Adjust AMPTD(VOLTS) dial to the value recorded in step 234 0.0001 Vdc.
TTS
DMM
224
POWER switch to OFF.
TTS
243
TTS
Adjust 1A7A1-R10 fully ccw.
225
Disconnect, then reconnect the 1W4-P2 connector connected to the OAF J3 receptacle.
244
TTS
Adjust 1A7A1-R10 cw until the display just switches from HI to LO.
226
POWER switch to ON.
OSC
TTS
227
Repeat steps 219 through 222.
245
PPE
Momentarily actuate TEST START switch (power off).
228
Remove the jumper wire on the 1W4 cable.
Trigger Output Threshold
246
TTS
229
TTS
Momentarily actuate TEST START/STOP pushbutton (power off).
MODE switch to TRIG OUTPUT.
247
PPE
230
TTS
POWER switch to OFF.
SEQUENCE switch to OFF.
248
TPS
Trigger Safe Threshold
TRIG OUTPUT switch to READ.
231
PP
DMS switch to OFF.
249
PPE
Momentarily actuate TEST START switch (power on).
232
MCP
Disconnect 1W1-P3 from J7.
250
TPS
Momentarily actuate TRIGGER switch.
251
PPE
Adjust AMPTD(VOLTS) dial to +1.665 0.003 Vdc.
DMM
252
PPE
Momentarily actuate TEST START switch (power off).
3-213