Sharp ER-A450T Service Manual - Page 50

8 7 6 GATE ARRAY(TPRC1) +5V +5V +5V +5V +5V +5V +5V +5V +5V 6-4B /STRB1 /STRB2 /STRB3 D /STRB4 /LATCH SI SO CLOCK 6-4B R246 R247 R248 R249 R250 R251 R252 R253 10K 10K 10K 10K 10K 10K 10K 10K B19 B20 B21 B22 B23 B24 B25 B26 C238 330P C239 330P C240 330P C241 330P C242 330P C243 330P C244 330P C245 330P D[0..7] A[0..23] D0 D1 +5V D2 D3 D4 IC25 C A19 A18 A8 A7 A6 A5 A4 A3 A2 A1 D0 D1 D2 D3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 NC A18 A17 A7 A6 A5 A4 A3 A2 A1 A0 CE/CE VSS OE/OE D0 D8 D1 D9 D2 D10 D3 D11 ROM16M 44 NC 43 A19 42 A8 A9 41 40 A10 39 A11 38 A12 A13 37 36 A14 35 A15 34 A16 BHE 33 32 VSS 31 D15/A-1 30 D7 D14 D6 29 28 27 D13 26 D5 25 D12 D4 VCC 24 23 A9 A10 A11 A12 A13 A14 A15 A16 A17 A0 D7 D6 D5 D4 +5V D5 D6 D7 A0 A1 A2 2-6B A3 /BACK A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 B 6-4C TM1 A 6-4C VH C229 0.1u +5V R254 18KF B18 C216 100P R256 4.7K C232 10u10V +5V R255 68F +24V IC18B 5 8 BA10393F 7 6 4 A17 A18 A19 A20 A21 A22 A23 2-1D 2-1D 2-1D 1-2A 3-1C 3-3D /RD /WR /AS /POFF /TPRCRQ /TWAIT 2-6A /BREQ R257 1.15KF R258 133F 2-3C TM 3 2 C226 0.1u 8 1 IC18A 4 BA10393F +5V R259 4.7K B1 C233 10u100V F2 R260 FUSE 1.5A/125V 20K 1 4 4 5 VHC 7-1B 9 6 10 1 4 12 8 13 1 4 11 NU 10kX13 R261 R262 R263 R264 R265 R266 R267 R268 R269 R270 R271 R272 R273 7PIN:GND 8 IC28B 74HC00S IC28C 74HC00S 7 IC28D 74HC00S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 C192 C193 C194 C195 C196 C197 C198 C199 C200 C201 C202 C224 C203 6 IC17 GND GND ST1 GND ST2 ST3 ST4 ST5 ST6 LATCH GND GND GND SI SO CLOCK INHDEC CSEN TEST2 VCC VCC VCC VCC TEST1 D0 D1 D2 D3 D4 GND GND GND D5 D6 D7 A0 A1 A2 NU INT1 WI BACK A3 A4 A5 A6 A7 A8 A9 GND GND GND A10 A11 A12 A13 A14 A15 A16 VCC VCC VCC A17 A18 A19 A20 A21 A22 A23 GND GND RD WR AS POF INT WO INH BREQ NU G.A(TPRC1) 5 +5V C264 C265 C230 0.1u NU GND RESET BRAS BRAS BD0 BD1 BD2 GND GND GND BD3 BD4 GND BD5 BD6 BD7 BA0 VCC VCC VCC PHAI BA1 BA2 BA3 BA4 BA5 BA6 GND GND GND BA7 BA8 BA9 BA10 BA11 BA12 POPI GND GND PTJM PTRM BA13 BA14 BA15 BRD BWR CGS GND GND GND JAS JBS JCS JDS RAS RBS VCC VCC VCC VCC VCC GND RCS RDS CTAO CTBO VHCOM JVPON GND GND GND RVPON PFP PCRES PHUP JPE RPE EBACK EBREQ 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 +5V BA2 BA3 BA4 BA5 BA6 BA7 BA8 BA9 BA10 BA11 BA12 BA13 BA14 47pX13 47pX5 +5V R275 R277 R276 R278 R274 10kX5 BA0 BA1 /BRD /BWR CGS C222 C223 C220 C225 C221 5 4 3 2 1 (R315) R316 R314 R313 R312 R311 R310 R309 R317 10KX9 5-6A R308 1K 5V R307 0 OHM /RESET VDD 74HC00S 1 4 1 +5V 3 2 C227 47P +24V 7/12 (C231) 10u16V C236 10u16V JP3 IC21 JP4 BD0 BD1 BD2 BD3 BD4 BD5 BA14 BA12 BA7 BA6 BA5 BA4 BA3 BA2 BA1 BA0 1 2 3 4 5 6 7 8 9 10 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 VCC /WE A13 A8 A9 A11 OE A10 CS 28 27 26 BA13 25 BA8 24 BA9 23 BA11 22 21 BA10 20 BD6 BD7 BD0 BD1 BD2 47pX9 11 12 13 D0 D1 D2 14 GND D7 D6 D5 D4 D3 19 18 17 16 15 BD7 BD6 BD5 BD4 BD3 IC28A C205 330P R306 8 4.7K 6 7 5 +5V IC20B 4 Vrf B14 /JPES 2-3C 6-4C D BA10393F C267 R305 4.7K IC20A 8 BA10393F 2 1 C237 3 B15 330P 4 0.1uF R339 100K /RPES 6-4B +5V R304 IC26 1 R340 100K 2 C268 0.1uF BA1 RAM(256K) 240 3 BA2 SOP C228 BA3 1000P KIA431A BA4 BA5 BA6 BA7 BA8 BA9 BA10 BA11 BA12 2-1C PHAI C208 C209 C210 C212 C211 C213 C219 C217 C218 PTRM BA13 BA14 /BRD /BWR CGS PTJM +5V R291 1K JAS JBS JDS JCS +5V RAS RBS +5V R292 1K R293 1K RCS RDS COM Q31 A1036 SMD +5V R300 5.6K R303 1K 1KX4 R297 R320 R298 R299 4AC16 JAS 2 3 JBS 4 5 JDS 6 7 JCS 8 IC22 9 COM 1KX4 R321 R322 R323 R296 RAS 2 RBS 4 RCS 6 RDS 8 1 10 4AC16 3 5 7 IC23 9 1 10 3-7C VRESC D9 1SS353 R302 33K R301 100K /JPFA /JPFB /JPFD /JPFC B8 6-4C B9 B10 B11 6-4B /RPFA /RPFB /RPFC /RPFD B4 B5 B6 R295 B7 33K R294 +24V +5V R318 8 5.6K 2 1 3 4 IC19A BA10393F +24V +5V D10 1SS 353 6 5 R319 8 5.6K 7 4 IC19B BA10393F PTJM 7-4C C PTRM 7-4C B +24V 100K R289 1K +5V R290 1K R288 10K B16 6-4C CUTS PHUPS B17 6-4B C215 47P C214 47P AUTO CUT CUTM+ 6-4C CUTM- C204 47P +24V C234 10u50V C206 0.1u C207 0.1u 4 7 B3 1 3 2 5 6 B12 (IC24) TA8428K COM R284 2.2K R285 10K R283 2.2K R279 10K Q27 C2412K R286 5.6K Q29 C2412K R287 10K Q30 2SJ328-Z +24V R282 10K JP5 R281 33K Q28 2SJ263 +5V (R280) D11 C235 2200u/50V VHC B2 VJCOM VRCOM B13 1W 8.2 1SS353 7-7A 6-4C 6-4B A 4 3 2 1