Samsung ML-4500/XAA Service Manual

Schematic Diagrams10-2 Samsung ElectronicsMain Circuit Diagram(2/5)Drawing Number:3 4 5 6 7 8A ABEFDFEngineer:1EDrawn by:R&D CHK:DOC CTRL CHK:MFG ENGR CHK:DATE : 2000.04.14 REV:7CDCTITLE:SAMSUNGPRINTER DIVML-4500A3Page: 220MHzSize:81 2B0.2APOLLO2 3 4 5 6GND4 1NCOUT5 8VCCQ213220MHzOSC4C84KSC1623-G5.6K100nFR10R125.6KC11310nF100nFC1053.3V3.3VB1+5VB24 GND 56ORG2 SK8VCCKM93C66GU6CS1DC 73 DIDOMMSD914T1D3100nFGND5GND5C10333R1910K10KR97 R98GND5+5V10KGND5R101R81 10K10KR80C251nFGND5R484.3KC12B422pF10KR991 333R20STS104BF32100nF C86C85100nF10KR83GND5OSC328.74448MHz4GND NC15OUT VCC8+5V+5VGND5GND5C23 820pF32841+5VLM393DU3-1GND5GND5+5VR8210KC79100nF100R116R18 33+24VS100nFC90C87100nF100R115100R1141nFC49C83100nFR100GND510KC20GND5GND539pF1nFC24R1733R8610K+5VGND5+5V +5VGND5MMSD914T1D1R46GND24R474.7K2KGND5100nF C88100nFC81 C77100nFD4MMSD914T110KR851KR2910KR87GND24C922pFMMSD914T1D2GND5100R120C82100nF+5V100nFC80100nFC781nFC47MC33269DTU41GND3 IN OUT 247pFC101199_XDREQ/GPI_SLCTIN151 _STROBE129_VCLK 128_VDI 122_VDO1/GPO_VDO2/GPO 12157_WE187_WTD_OUT/GPO_XDACK/GPO 200_PHGA9/GPO2052_RAS0_RAS1 5349_RCS0_RCS1/GPO 50_RCS2 51_RESET 1821521629 _PHGA1/PHINA28 _PHGA2/PHINB27 _PHGA3/PHINC26 _PHGA4/PHIND24 _PHGA5/GPO_PHGA6/GPO23_PHGA7/GPO22_PHGA8/GPO21_INIT162_IORD/GPO 161_IOWR/GPO126_LREADY/GPI_OE 56_PHGA10/GPO1918 _PHGA11/GPO_PHGA12/GPO17_PHGA13/GPO_ECS2/GPO 8_EINT0/GPI 9_EINT1/GPI 10_EINT2/GPI 130_EXWAIT/GPI155 _FAULT_HSYNC1/GPI 125127_HSYNC2/GPI153TXD1/GPOTXD2/GPO 189159 _ACK154 _AUTOFD54_CAS0_CAS1 5512_ECS0 13_ECS1 14SVDDA 15SVSSA169TEST0 170TEST1 171TEST2188TONE_OUT/GPOTXD0/GPO 193191103 SC_CUR0104 SC_CUR1SC_CUR2106107 SC_CUR3156 SELECT196SLED0/GPO 197SLED1/GPO 198SLED2/GPORTC_XOUT194RXD0/GPI192RXD1/GPI190RXD2/GPI3SAIN4SAVRB 2SAVRT102 SC_CONPHA/GPO105 SC_CONPHB/GPOPPD5148 PPD6149 PPD7PWMO0/GPO118119 PWMO1/GPO120 PWMO2/GPORTC_VDD 201202RTC_XIN 20338PHOE9/GPIO40PLL_FIL 183142 PPD0PPD1143144 PPD2145 PPD3146 PPD4147PHOE16/_HOEDPHOE1/GPIO3132 PHOE2/GPIOPHOE3/GPIO33PHOE4/GPIO34PHOE5/GPIO35PHOE6/GPIO36PHOE7/GPIO37PHOE8/GPIO157 PERROR41 PHOE10/GPIOPHOE11/GPIO4243 PHOE12/GPIO44 PHOE13/_HOEA45 PHOE14/_HOEB46 PHOE15/_HOEC47165 LF_CUR1167 LF_CUR2168 LF_CUR3LF_PH0/GPO163166 LF_PH1/GPO123LSU_CLK/GPO184OSCI 185OSCO205GVRT 204GVSSAICE/TCK 132ICE/TDI 133134ICE/TDO 135ICE/TMS136ICE/_TRSTLF_CUR016418125GND239GND358GND476GND5101GND6108GND7GND8 124150GND9GIOP4 174GIOP5 175GIOP6GIOP7 176177GIOP8 178GIOP911GND1GND10 172GND11208207GAD_IN1 206GAD_IN2137GIOP0 138GIOP1179GIOP10139GIOP2 140GIOP3 173D464 D565 D666 D7D86869 D9DC_SIN0/GPI116117 DC_SIN1/GPIGAD_IN0D1071 D1172 D1273 D1374 D1475 D15D26162 D363CRIA0/GPO111 CRIA1/GPO112 CRIB0/GPO114 CRIB1/GPOCR_PHA/GPO110113 CR_PHB/GPOD05960 D170A6A785A88687 A9158 BUSY6CIS_CLK 7CIS_SICLKOUT/GPO 180109A18A199879 A2A2099A2110080 A3A482A58384A10A1190A1291A1392A149394 A1595 A16A179697186485VDD15VDD2 67895VDD35VDD4 1411955VDD5A077A178883VDD1 15303VDD23VDD3 811153VDD43VDD5 1313VDD6 1603VDD7U1KS32C65100R281.2KR135.6KC89100nF1nFC40+5V1MOSC1R15GND5C1122pF220pFC126KSC1623-GQ132GND5GND55.6KR11R117 100C104100nFGND5GND54GND5+5V32GND5C481nFGND5C122uF16V+5VGND5B5+5VGND5GND5100nFC76CN2-11C12416V33uFTHVREAD*MHV*KEY_DEMO*ROMCS*WR*RDTHERM_ATHERM_BINSTPARL1TXD0*KEY_CANCEL*KEY_TONERRXD0TXD0COVER_OPENTHERMFANCLUTCH*USB_DACK*EXITUSB_RSTPTL*LD_ON*NEW_DEVELED_DATAILED_PAPERILED_ERRORILED_TONERI*KEY_TONER*KEY_DEMO*KEY_CANCELDCU_DATADCU_CLK*CAS0*CAS1*USB_CS*USB_IRQ*HSYNC*LREADYVDO*THV_EADEV_FUSE*PEMPTY*FEEDCOVER_OPENFUSER_ONFUSERD(8)D(9)D(10)D(11)D(12)D(13)D(14)D(15)PPD(0:7)PPD(1)PPD(2)PPD(3)PPD(4)PPD(5)PPD(6)PPD(7)*SLCTIN*INIT*AUTOFD*FAULTSELECTPERRORBUSY*ACK*WTD_OUT3.3VTHERM3.3VRXD0A(0:18)A(1)A(2)A(3)A(4)A(5)A(6)A(7)A(8)A(9)A(10)A(11)A(12)A(13)A(14)A(15)A(16)A(17)A(18)D(0)D(0:15)D(1)D(2)D(3)D(4)D(5)D(6)D(7)3.3VA(0)*EGMOT_A0*EGMOT_B1EGMOT_PHAEGMOT_PHB*EGMOT_A1*EGMOT_B0PMOTOREXT_CLKTHVPWMBIASPWM*RAS0*RAS1*POR*USB_DREQFUSERPPD(0)*STBIN3.3V