Service manual

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REV.-A
1.6.2 BOARD ASSEMBLY, C094 PNL (Control Panel Circuit Board)
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This board functions as the control panel of the FX-870/l 170, and consists of a power switch, three function
switches, and three indicator LEDs.
Figure 1-13. BOARD ASSEMBLY, C094 PNL (Control Panel Circuit Board)
1.6.3 BOARD ASSEMBLY, C076 PSB/PSE (Power Supply Circuit Board)
This board is composed of an input filter circuit, a transforming circuit, a switching regulator circuit, a
rectifying circuit, a smoothing circuit, and various protecting circuits.
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Figure 1-14. BOARD ASSEMBLY, C076 PSB/PSE (Power Supply Circuit Board)
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