Sony MZ-R50 Service Manual - Page 44
Ic804, Ds1302z, Ic806, Mb3800pnf, Ic506, Mpc18a20vm, Ic Block Diagrams - Main 2/3
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Page 44 highlights
IC506 MPC18A20VM RF SS DTC NC PGNDLG VB VIN VIH VGH CIL VCC CK COSC MODE 1 MODE 2 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 PRE DRIVER COMP + CLK CHARGE PUMP SAW CONTROL LOGIC OSC EN ENB SAW SAW COMP VREF OP PRE DRIVER EFM LOGIC BIAS VREF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 INM ERRID ERRIV GND VSET VG VGL PGNDG PGNDB HA HB PGNDA GND EFM VERF r IC BLOCK DIAGRAMS - MAIN (2/3) SECTION - IC804 DS1302Z VCC2 1 X1 2 X2 3 GND 4 OSCILATOR AND DIVIDER REAL TIME CLOCK DATA BUS RAM ADDRESS BUS COMMAND AND CONTROL LOGIC IC806 MB3800PNF INPUT CHIFT REGISTERS 8 VCC1 7 SCLK 6 I/O 5 RST -IN 1 SCP 2 VCC 3 BR/CTL 4 REFERENCE VOLTAGE ERROR AMP _ 1.25V + 36K 0.5V 500 SAW-WAVE GENERATOR 0.1V ± ± DTC 0.6V OUTPUT DRIVE CONTROL CIRCUIT 0.3V SOFT START S.C.P. - - 62 - 8 FB 7 OSC 30K 6 GND 5 OUT
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