Japan Cash Machine G356E Service Manual
                      | |
Contents
| 
63.2 circuit description3.2.1 power circuitPOWER VOLTAGE (+5V,-30V,VEE,,VF1,VF2) REGULATOR CIRCUITAfter passing through the switching regulator. There is a +24V DC power via JP1.This power supply circuit employs fly back converter type switching regulator system.At the initial condition, as the level of point “I” is 0V, PQ4 keeps OFF condition.When +24V begins to rise up after power ON, the level of point “H” rises up and PQ1 turns ON.And then the power is applied to primary side of pulse transformer (PT1).When the power is applied to primary side of the PT1 , the level of point“I” (secondary side of the PT1 ) rises up, and if it is exceed the zenner voltageof PD11(+5V), PQ4 turns on and the level of point “H” becomes 0V.Therefore PQ1 is in OFF condition and supplement to primary input of PT1is cut off, with that the level of point “I” becomes initial condition again and PQ1 turns ON.Thus , switching the supplement of power to primary side of PT1,secondary output(+5V,-30V,VF1,Vf2) is stable.The +24V DC pass through u1(LM2575S-5.0 voltage regulator)become Vcc-c steady.I H51678910234PT1 S097866PR468PR33.3K 1/4WPR615K PR51.5KPR722KPR822KPR9680PR10330 1/4WPR11220 1/4WPR1210KPR133.3K 1/4WPQ12SC3568KPQ42SC3052PQ32SC3052PD20S1B-SBPD8RS1B_R8PD12RS1B_R8PD13RS1B_R8PD14HZU5.1PD9HZ36CPBPD10HZU12B2PD11HZU5.1 PC92.2UPC161000uPC101000U PC12100UPC11100UPC13100uC200.1UPC180.1UPC190.1UPC22100pPC23100pPC210.1uPC8102PC6223KPC7682+24VPS_+5V-30VVF1VF1PC241000pPL3BLM21PG600PL4BLM21PG600PNF3DSS31010V50V50V50V35V10V100V |
Related manuals for Japan Cash Machine G356E
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine