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Maintenance
2 - 9
●
Date/time changes.
The clock function is performed by lithium battery (BT1) at all times. The
setting of the equipment is backed up for about 5 years, on condition that it
is stored at the room temperature.
Item to Check
Method of Checking and Corrective Action
Place to Check
Lithium battery
voltage
Check that the voltage of the lithium battery (BT1) is
+
2V or higher. Check also that the battery is properly
mounted to the MAIN BOARD.
RT1
REFERENCE
P5-32
Control signal
Verify that RTCCE, RTCDATA, and RTCCLK
signals on the IC13 do not become fixed at H or L
each time the date/time is changed in the program
settings.
IC13 pin 11,12,13
REFERENCE
P5-32
●
Buzzer would not sound
Item to Check
Method of Checking and Corrective Action
Place to Check
Program setting
Check the program setting to make sure that the
buzzer is not set to OFF, or the volume is set to
extremely low setting.
Program setting of the buzzer
Buzzer
Check that the buzzer (Y1) is properly mounted to
the MAIBN BOARD.
Y1
REFERENCE
P5-29
Buzzer signal
With an oscilloscope, observe the potential at IC8
pin 103 while the buzzer is sounding, and make
sure it is not a fixed potential.
IC8 pin 103
REFERENCE
P5-29
Содержание FCP-7101
Страница 10: ...viii ...
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Страница 18: ...Chapter 1 1 6 ...
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Страница 32: ...Chapter 2 2 12 ...
Страница 66: ...Chapter 3 3 32 ...
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Страница 76: ...5 2 ...
Страница 78: ...5 4 ...
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Страница 136: ...Chapter6 6 12 ...
Страница 138: ......
Страница 139: ...7 1 MAIN BOARD PCB 6950 component side ...
Страница 140: ...7 2 MAIN BOARD PCB 6950 soldering side ...
Страница 141: ...7 3 KEY BOARD PCB 6949 component side ...
Страница 142: ...7 4 KEY BOARD PCB 6949 soldering side ...
Страница 143: ...7 5 SENSOR BOARD PCB 6948 component side ...
Страница 144: ...7 6 MAG UP BOARD PCB 6951 component side ...
Страница 146: ......
Страница 155: ...8 9 Outline view FX 7102 ...
Страница 156: ...8 10 Outline view FCP 7101 ...
Страница 160: ...8 14 ...
Страница 162: ......
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Страница 170: ...39 4 Hongo 3 chome Bunkyo ku Tokyo Japan Phone 81 3 3815 2121 Fax 81 3 3814 1222 4R2132 200407 F ...