ZR70 MC A, ZR65 MC A, ZR60 ACHAPTER 2. TECHNICAL DESCRIPTION2-32. Power Supply CircuitIn this product, a novel type of power supply system including a compact adapter (CA-570) is adopted for enhancement of costperformance and power savings.In comparison with the conventional products, this machine provides the following advantageous features:• When the DC jack is disconnected from the battery with power turned ON, poser goes OFF once.• The internal battery is charged only when the MAIN switch is at the P OFF position.• When the DC jack not connected with power source (not supplied with power) is inserted into the main unit, power is not turnedon even if the battery is mounted. “A changeover of main power to the battery is not made since an event of DC jack mechanismdetection takes precedence.”2-1 Startup of Power SupplyFig. 2-13 135 74767766671441211971814621052734171252DETRESETSWE3V E3 DETVCCCN4001LITHIUMBATTERYVTRPOWER SWVTR ONPM SECTIONDMC-IIICASSETTEIN SW POWER SWJACKEJ SWCAMERAPOWER SWEJECT SWCAS INRESETVTR ONUNREG DETDC J DETLI DETSERIALDATAIC2301FRMI-COM.(VIC3)IC103RESETIC102BACK UPIC100MODEMI-COM.CN2101 CN101CN100DVDD 3V3VREG.2.6VDET.1221CN3202CN32015623DC+DC J SWBATT+3112CN303MAIN P.C.B.Card P.C.B.109
