Epson SQ-B50/2550 Technical Manual page 141

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2V 2V
0·25
Upper:
+
5VDC line
Lower: Vbak line
Figure 2-89. Backup Circuit Operation While Power Off
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11
V
I
2V O·
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5
292 (13D) CLK1 input clock
Figure 2-90. Clock Circuit While Power Off
2-73
REV.-A