
M-29
006-252-02
10.22.99 FM2569
FM-DP L
Service Manual
M-29
PREVENTIVE MAINTENANCE 2. DETAILS OF PREVENTIVE MAINTENANCE PROCEDURES
2.16
Checking the Voltage
Using a tester, check the DC voltage output.
Procedure
(1)
Attach the interlock release jig to the front cover interlock (SJ2/SJ3).
(2)
Turn ON the power of the equipment and start the M-Utility during
initialization.
<CONFIRM>
Measure each DC output voltage and if a voltage is outside the specified value,
adjust the adjusting control of the power supply unit.
CAUTION
To avoid potential electric shock hazard,
• Never touch the power supply terminal.
• Never touch the probe (metal portion) of the tester during voltage measurement.
When measuring on the SCN11A board, observe the following ro prevent
shorting.
• Do not measure at TP47 (GND).
• When measuring at TP46 (GND), use the tester lid.
Measured DC Voltage
-5.2V
+5Vcc
+12V
-15V
+15V
+15VM
+24V(+24VC)
+5VS
Specified Range
-5.2V
±
2% (-5.096~-5.304V)
+5V
±
2% (+4.90~+5.10V)
+12V
±
2% (+11.76~+12.24V)
-15V
±
2% (-14.70~-15.30V)
+15V
±
2% (+14.70~+15.30V)
+15V
±
2% (+14.70~+15.30V)
+24V
±
2% (+23.52~+24.48V)
+5V
±
2% (+4.90~+5.10V)
Measured Point
SCN11A board TP40-TP46 (GND)
SCN11A board TP42-TP46 (GND)
SCN11A board TP44-TP46 (GND)
SCN11A board TP52-TP46 (GND)
SCN11A board TP51-TP46 (GND)
SCN11A board TP54-TP46 (GND)
SCN11A board TP53-TP46 (GND)
MTH11A board TP21-TP4 (GND)
TP3M0202.EPS
-5.2V +5V +12V -15V +15V +15VM +24V +5VS
FP3B0453.EPS
(3)
Turn OFF the power of the equipment, and remove the interlock release jig.
(4)
Attach the lower front cover.
1Y
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