Blease Test Procedure
Title: B.A.V. POWER SUPPLY PCB DocumentNo:129TP076 Sheet 4 of 5
5.3 On Load Volts
Set the external supply current limit to maximum (
≥
2.5 Amp) and then toggle the following
five jig switches to ON:
TOP CHARGE
⋅
+5V LOAD
⋅
+6V LOAD
⋅
FLOW VALVE
⋅
DUMPVALVE
Note the four supply voltages stated. (UNREG +25V = 17.0 Vdc)
5.4 Regulation Volts
Increase the external DC supply voltage until the jig UNREG +25V meter reads 29.0 ± 1 Vdc
and note the four supply voltages again.
5.5 Off/On Check
Toggle the jig PCB MODE switch to OFF for a few seconds and then return to the ON
position.
Apart from the BATT VOLTS supply, verify that the other three supplies turn OFF and are
then restored to there previous value when the PCB MODE switch is turned back ON.
5.6 Battery Operational Check
Toggle the following three jig switches:
BATT to CONNECTED
⋅
BATT RELAY to ON
⋅
+6V SUPPLY to HOLD
Reduce the external DC supply voltage to 0 Vdc and note the four supply voltages stated.
5.7 Alarm Operation
Toggle the jig ALARM SOUND switch to ON and verify the audio transducer on the board
under test operates loudly.
5.8 Alarm Backup
Toggle the jig +24V RELAY switch to OFF and verify the volume of the alarm reduces by
about half and that the REGUL +24V supply turns OFF.
Note the two supply voltages stated.
5.9 Alarm Links
Remove link 3 from the board under test and verify the volume of the alarm reduces by half
and does not stop sounding.
Remove link 2 from the board under test and verify the volume of the alarm reduces by another
half but does not stop sounding.
Insert link 1 and verify the alarm stops sounding.
Restore all three link positions (1 = open, 2 & 3 = closed).
5.10 Shut Down
Toggle the jig PCB MODE switch to OFF and verify the alarm stops sounding but the REGUL
+6V supply is still present.
Toggle the jig +6V SUPPLY switch to NORM and verify the REGUL +6V supply turns OFF.
Note - the top charge LED may turn ON as the REGUL +6V supply turns OFF. This is
normal and indicates the internal jig battery is being charged by the board under test.
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