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52
12-2.AC INPUT & POWER CIRCUIT
Function
Generates a required DC power of 12V
or 5V in case of supplied or disconnected
AC power.
Description
- When AC 220V is applied to D18~D21
it to DC 300V
- When DC 300V IS appliedto IC3
LVT1t to dC 12V. and dc 8v
- The 8v is transformed to DC 5V
through IC4(KA7805).
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