2.7. Métodos de manipulación de proteínas
2.7.4. Ensayo de movilidad electroforética (EMSA)
FROM FLOWCHART 6 NO NO YES YES YES YES CHANGE TRIGGER PCB BETWEEN TSB1 AND TSB2 2.0V-4.5V? IS VOLTAGE NO YES REPLACE PLZB.
ISOLATE TRANSCEIVER FROM SHIP’S MAINS AND REMOVE COVER.
CHANGE INPUT PCB RECONNECT TSB.
AT THE INPUT PCB REMOVE PLZB
IS VOLTAGE BETWEEN TSB1 YES NO AND TSB2 2.0V-4.5V? IS VOLTAGE IS FAULTY NO CABLE 228 (BULKHEAD) or 230 (MASTHEAD) BETWEEN TSB1 AND TSB2 2.0V-4.5V? GO TO ‘FLOW CHART12’ ENTRY POINT ‘B’
AT THE SCANNER UNIT, UNPLUG CABLE 230 (MASTHEAD) or 228 (BULKHEAD) FROM TSB (INPUT PCB) MEASURE VOLTAGE BETWEEN TSB1 AND TSB2 ON THE CABLE.
THE FUSE CLEAR FAULT? DOES REPLACING
BLOWN? IS FUSE IN SCANNER UNIT BETWEEN TSE3 AND TSE4
IS MAINS PRESENT CHECK CONNECTION S TO SHIP’S SUPPLY NO
AT SCANNER UNIT?
! WARNING !
THIS TEST EXPOSES DANGEROUS VOLTAGES
AT THE SCANNER UNIT, REMOVE THE FILTER BOX COVER.
MEASURE SHIP’S MAINS BETWEEN TSE3 AND TSE4.
GO TO ‘FLOWCHART 8
ENTRY POINT ‘A’ ENTRY POINT ‘A’
GO TO ‘FLOWCHART 10’
AT THE SCANNERCONTROL UNIT, SET THE ISOLATION SWITCH TO ‘OFF’ AND LOCK IT TO MAKE SCANNER UNIT SAFE FOR SERVICING
AT THE DISPLAY, SELECT TEST DATA 1, TX BIST. CYCLE THROUGH TESTS
GO TO ‘FLOWCHART 14’ ENTRY POINT ‘A’ ENTRY POINT ‘A’ SWITCH TO TRANSMIT AND +30V CORRECT? ARE +12V VOLTAGES INCORRECT? ARE BOTH NO YES NO IS ANTENNA ROTATING? NO YES END
FLOWCHART 8 S-BAND SCANNER FAULTS
FROM FLOWCHART 7
E)
T AT THE SCANNER CONT OL UNIT R
PRESS RESET BETWEEN SAN ND IS +12V PRESENT A CHASSIS? YES
ENTRY POINT ‘A’
YES
FAULT IS IN
SCANNER CONTROL UNIT CHECK CONTACTOR. CHECK THERMAL OVERLOAD.
NO E AT TSA1 0V? IS THE VOLTAG NO YES GO TO ‘FLOWCHART 9’
IF THE TRANSCEIVER IS BELOW, REMOVE THE FILTER BOX COVER AT THE TRANSCEIVER.
AT THE SCANNER UNIT, SET ISOLATION SWITCH TO ‘OFF’ AND LOCK IT TO MAKE THE SCANNER UNIT SAFE FOR SERVICING.
IF THE TRANSCEIVER IS ALOFT, REMOVE THE FILER BOX COVER AT THE TURNING UNI
IS SHIP’S MAINS CORRECT? FROM SWITCH FUSEY NO CHECK SHIP’S SUPPL
! WARNING !
THIS TEST EXPOSES DANGEROUS VOLTAGES
OPEN THE SCANNER CONTROL UNIT. MEASURE SHIP’S MAINS BETWEEN SAR-SAT, SAT-SAS, SAR-SAS (3 PHASE), SAT-SAS (SINGLE PHAS
YES
NO
ENTRY POINT ‘A’
FLOWCHART 9 S-BAND SCANNER FAULTS
FROM FLOWCHART 8
AT PLTG3 (PSU PCB) 0V? IS THE VOLTAGE
REMOVE COVER FROM TRANSCEIVER UNIT
NO
NO
CHANGE TRIGGER PCB AT PLTY10 (TRIG PCB) 0V?
IS THE VOLTAGE YES
CHANGE CABLE NO YES CHANGE PSU PCB AT PLTH10 (PSU PCB) 0V? IS THE VOLTAGE NO NO YES BETWEEN CHASSIS A D IS +12V PRESENT N PLTG3 (PSU PCB)? YES CHANGE CABLE YES
CHECK CONTINUITY OF CABLE TO DISPLAY, SCANNER CONTROL UNIT.
ENTRY POINT ‘A’ BEWEEN CHAS IS S AND TSB9? IS +12V PRESENT YES NO
REMOVE TRANSCEIVER C VER. O RESTORE SHIP’S SUPPLY.
IS THE VOLTAG YES CHANGE INPUT PCB NO AND PLZG3(INPUT PCB)? IS +12V NO AT PLZG3 (INPUT PCB 0V? YES IS THE VOLTAGE PRESENT BEWEEN CHASSIS
E AT TSB10 0V?
ISOLATE TRANSCEIVER FROM SHIP’S SUPPLY.
FLOWCHART 10 S-BAND SCANNER FAULTS
FROM FLOWCHART 7 ENTRY POINT
‘A’
RESTORE SHIP’S MAINS.
AT THE POWER SUPPLY MEASURE THE VOLTAGE BETWEEN TP6 AND EARTH AND TP4 AND EARTH.
ISOLATE TRANSCEIVER FROM SHIP’S MAINS AND REMOVE COVER. AT THE POWER SUPPLY FIT LKA 1-2.
CHANGE TRIGGER PCB IS THE VOLTAGE AT TP6 +11.4V - +12.6V? NO YES YES CHANGE RECEIVER CHANGE TRIGGER PCB IS THE VOLTAGE AT TP4 +28.5V - +31.5V? IS THE VOLTAGE AT TP4 +28.5V - +31.5V? IS THE YES VOLTAGE AT TP4 +28.5V - +31.5V? YES AT THE TRIGGER PCB UNPLUG PLYA AT THE TRIGGER PCB UNPLUG PLYH
CHANGE POWER SUPPLY PCB NO
NO NO
AT THE POWER SU LY
GO TO ‘FLOWCHART 11’ ENTRY POINT ‘A’
PP UNPLUG PLTG
FLOWCHART 11 S-BAND SCANNER FAULTS
FROM FLOWCHART 10
CHANGE POWER SUPPLY NO YES CHANGE TRIGGER PCB IS THE VOLTAGE AT TP6 +11.4V - +12.6V? NO AT THE TRIGGER PCB UNPLUG PLYH
CHANGE CABLE BETWEEN RECEIVER AND TRIGGER PCB YES VOLTAGE AT TP6 +11.4V - +12.6V? IS THE NO AT THE TRIGGER PCB UNPLUG PLYA CHANGE INPUT PCB. IF FAULT PERSISTS CHANGE PERFORMANCE MONITOR. CHECK WIRING BETWEEN INPUT PCB AND PERFORMANCE MONITOR. YES IS THE VOLTAGE AT TP6 +11.4V - +12.6V? +11.4V - +12.6V? IS THE
VOLTAGE AT TP6 YES CHANGE INPUT PCB. IF FAULT PERSISTS CHANGE SCANNER CONTROL UNIT.
CHECK WIRING TRANSCEIVER TO SCANNER CONTROL UNIT.
UNPLUG PLYB NO
AT THE TRIGGER PCB
ENTRY POINT ‘A’
FLOWCHART 12 S-BAND SCANNER FAULTS
FROM FLOWCHART 7 ENTRY POINT
‘A’
MEASURE VOLTAGE BETWEEN PLTA4 - PLTA6.
ISOLATE TRANSCEIVER FROM SHIP’S SUPPLY.
CHECK MAINS FILTER, WIRING ON MAINS FILTER PANEL, CABLE FROM MAINS FILTER PANEL TO PLTA.
NO CHANGE PSU YES ENTRY POINT ‘B’ IS THE VOLTAGE 115VAC - 240VAC?
ISOLATE TRANSCEIVER FROM SHIP’S SUPPLY AND REMOVE TRANSCEIVER COVER.
REMOVE PLTA FROM PSU.
RECONNECT SHIP’S SUPPLY. FROM FLOWCHART 7 VOLTAGE AT PLZB1 - IS THE 7 PLZB18 2.0V-4.5V? YES PLYB18 AT THE TRIGGER
PCB 2.0V - 4.5V? IS THE
VOLTAGE BETWEEN PLYB17- NO CHANGE CABLE
PLYH12 AT THE TRIGGER VOLTAGE BETWEEN PLYH11-
IS THE
PCB APPROX 1.0V?
NO
CHANGE TRIGGER PCB
PLYH12 AT POWER SUPPLY PCB VOLTAGE BETWEEN PLYH11-
APPROX 1.0V? IS THE
NO
CHANGE CABLE
VOLTAGE BETWEEN PLTA4- IS THE
PLTA6 115V - 230V?
NO
ISOLATE TRANSCEIVER FROM SHIP’S SUPPLY.
CHECK MAINS FILTER, WIRING ON MAINS FILTER PANEL, CABLE FROM MAINS FILTER PANEL TO PLTA.
IS VOLTAGE BETWEEN TP14- ON PSU PCB, NO
TP2 380VDC - 418V?
CHECK THAT LKB IS FITTED ON POWER SUPPLY PCB.
GO TO ‘FLOWCHART 13’ ENTRY POINT ‘A’
YES
YES
YES YES YES
IF LINK IS FITTED CHANGE POWER SUPPLY PCB.
CHANGE INPUT PCB AT INPUT PCB MEASURE
VOLTAGE BETWEEN PLZB17 NO
FLOWCHART 13 S-BAND SCANNER FAULTS
! WARNING !
DURING THIS TEST, OUTPUT VOLTAGES WILL BE PRESENT AT THE POWER SUPPLY WHEN THE RADAR IS TURNED OFF.
FROM FLOWCHART 12
NO
CHANGE INPUT PCB RECONNECT PLYA, AND AT
INPUT PCB UNPLUG PLZD
CHANGE PERFORMANCE MONITOR YES
RECONNECT PLYA, AND AT
TRIGGER PCB UNPLUG PLYA CHANGE RECEIVER
YES NO
CHANGE PSU
CHANGE INPUT PCB.
CHANGE SCANNER CONTROL UNIT. CHECK WIRING TO SCANNER CONTROL UNIT YES POWER SUPPLY PCB VOLTAGE AT TP7 ON 4.75V - 5.25V? IS THE YES CHANGE MODULATOR PCB UNPLUG PLTB AND PLTD 4.75V - 5.25V? POWER SUPPLY PCB VOLTAGE AT TP7 ON IS THE NO UNPLUG PLTG UNPLUG PLTH POWER SUPPLY PCB IS THE VOLTAGE AT TP7 ON 4.75V - 5.25V? POWER SUPPLY PCB IS THE VOLTAGE AT TP7 ON 4.75V - 5.25V? POWER SUPPLY PCB IS THE VOLTAGE AT TP7 ON 4.75V - 5.25V? NO NO YES NO YES RECEIVER PCB CHANGE TRIGGER PCB OR POWER SUPPLY PCB IS THE AT PSU FIT LKA
VOLTAGE AT TP7 ON
4.75V - 5.25V?
ENTRY POINT ‘A’
FLOWCHART 14 S-BAND SCANNER FAULTS
FROM FLOWCHART 7
YES
NO
UNPLUG PLZE
CHANGE INPUT PCB CHANGE PULSE BEARING PCB
INPUT PCB 4.5V - 5.25V? IS THE
VOLTAGE AT PLZE1 ON THE YES NO
NO CHANGE TRIGGER PCB
CHECK CABLE FROM TRIGGER PCB TO INPUT PCB
ISOLATE TRANSCEIVER FROM SHIP’S SUPPLY AND REMOVE TRANSCEIVER COVER.
AT THE TRIGGER PCB SET LK5, AND LK6 TO 2 - 3.
AT THE MODULATOR PCB UNPLUG PLVB.
AT THE SCANNER CONTROL UNIT SET THE ISOLATOR SWITCH TO ‘OFF’ AND LOCK IT TO MAKE SCANNER UNIT SAFE TO SERVICE. REMOVE PERFORMANCE MONITOR COVER. ON THE PULSE BEARING PCB CHECK LK1 - IS SET
2 -3 FOR HIGH SPEED TURNING UNITS 1 -2 FOR LOW SPEED TURNING UNITS
ENTRY POINT ‘A’
END
IS FAULT CLEARED?
ENTRY POINT ‘A’ GO TO ‘FLOWCHART 15’
YES
NO
VOLTAGE AT PLZE1 ON THE
IS THE YES INPUT PCB 4.5V - 5.25V? INPUT PCB 11.2V - 12.5V? VOLTAGE AT PLZB9 ON IS THE YES CHANGE INPUT PCB CHANGE CABLE BETWEEN INPUT PCB AND PULSE
BEARING PCB IS FAULT STILL PRESENT? YES
CHANGE TRIGGER PCB. IF FAULT IS NOT CLEARED: CHECK DATA CABLE FROM DISPLAY TO TRANSCEIVER.
ENSURE THAT BRAIDS ARE PROPERLY BONDED.
CHECK CABLE BETWEEN INPUT PCB & PULSE BEARING PCB.
CHECK FOR DAMAGED OR MISSING TEETH ON THE PULSE DISK. IF FAULT PERSISTS THERE IS A DISPLAY FAULT.
INPUT PCB 11.2V - 12.5V? IS THE
VOLTAGE AT PLRE2 ON PULSE BEARING PCB 11.2V - 12.5V?
IS THE VOLTAGE AT PLZE2 ON THE YES
RESET LK5 ON TRIGGE PCB R TO POSITION 1 -2
NO
NO
FLOWCHART 15 S-BAND SCANNER FAULTS
FROM FLOWCHART 14
YES
NO NO
CHANGE CABLE BETWEEN INPUT PCB AND TRIGGER PCB CHANGE INPUT PCB IN TRANSCEIVER
CHECK CABLE BETWEEN TURNING UNIT AND TRANSCEIVER.
AT TSC11 ON INPUT PCB IN TURNING UNIT IS THE VOLTAGE APPROX 2.5V? YES AT PLZB11 ON INPUT PCB IN TRANSCEIVER UNIT IS THE VOLTAGE APPROX 2.5V? YES NO YES AT PLZB11 ON INPUT PCB IN TURNING UNIT APPROX 2.5V?
IS THE VOLTAGE CHANGE INPUT PCB.
NO CHANGE INPUT PCB.
NO
CHECK CABLE BETWEEN INPUT PCB AND PULSE BEARING PCB
AT PLYB11 ON TRIGGER PCB IS THE VOLTAGE
IF FAULT IS NOT CLEARED CHANGE TRIGGER PCB.
CHECK PULSE DISC FOR DAMAGE. CLEAN OPTO COUPLERS ON THE PULSE BEARING PCB.
CHANGE PULSE BEARING PCB. APPROX 2.5V?
NO YES
CHECK CABLE BETWEEN INPUT PCB AND PULSE BEARING PCB IS TRANSCEIVER ALOFT?
PLRE1 ON PULSE BEARING PCB 4.5V - 5.25V? IS THE VOLTAGE AT
BETWEEN INPUT PCB AND PULSE BEARING PCB
NO
CHANGE CABLE
NO YES
PLRE4 ON PULSE BEARING PCB APPROX 2.5V? IS THE VOLTAGE AT
THE FAULT IS PROBABLY ON PULSE BEARING PCB.
ALSO CHECK FOR SHORT CIRCUITS ON:
TRIGGER PCB,
INPUT PCB IN THE TURNING UNIT, INPUT BOARD IN THE TRANSCEIVER, WHERE THE TRANSCEIVER IS BELOW DECKS.
ENTRY POINT ‘A’
FLOWCHART 16 S-BAND SCANNER FAULTS