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PRESYS
|
Instruments
Check if the voltages on flat cable 1 as shown in figure 38 are close to values
in table 11 and if they reach the CPU Board.
Points of Flat-cable 1
Between point 1(-) and point 2(+)
Between point 9(-) and point 8(+)
Between point 9(-) and point 1(+)
Between point 9(-) and point 10(+)
Between point 9(-) and point 13(+)
Between point 12(-) and point 11(+)
Table 11 - Inspection points of voltage on flat cable 1
Power Supply Board
In case the problem is not isolated the instrument should be returned to factory
for repairs.
DCY - 2057 Pressure Controller
Flat-cable 1
Fig. 38 - Voltage test points of the Controller
Voltages
5V
8V
0V
- 8V
24V
5V
CPU Board
Maintenance
Page 65
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