Sharp FO-2970M Service Manual - Page 61

6 - 1 A B C D [1] Control PWB circuit +5V 5 6 7 8 CPU block +5V R134 R132 +5VSH BR4 10K x 4 1 2 3 4 0 0 (2-5C) /HSYNC 6 (2-3G) /INT1 C128 C6 /INT2 (2-3G) N.M. (2-3G) /INT3 DG +5V (2-3G) /INT4 /INT5 (2-3G) C127 C123 R163 R194 R164 2200P 2200P (2-3H) /BACK 10K 10K (2-3H) /BREQ R160 100 C154 N.M. DG 5 33 +5V (7-5A) MRES C125 DG 2200P C126 C124 2200P 2200P +5V R172 4.7K C161 8 7 6 5 8 7 6 5 N.N. 65 70 69 68 67 66 30 33 62 DG DG BR2 10K x 4 BR3 10K x 4 1 2 3 4 1 2 3 4 (3-4D) /CS0 R131 100 50 CS0 (2-4G) /CS1 R129 100 49 CS1 (2-4G)(4-3E) /CS2 R130 100 54 CS2 (3-4F) /CS3 53 CS3 (2-4G)(3-4D)(3-4F)(8-4G) /RD R127 68 43 RD (2-4G)(3-4F)(8-4G) /WRL R128 68 48 WRL 4 +5V (2-4G)(8-4G) /WRH (2-1E) /RAS R166 68 R169 100 47 WRH 31 RAS 8 7 6 5 BR19 10K x 4 (2-1E) /CASL R170 100 32 CASL (2-1E) /CASH R171 100 34 CASH (2-4G) R234 /DREQ0 33 4 3 2 1 (2-1E) /RDWR R165 100 36 RDWR 109 DREQ0 (2-4G) /DREQ1 111 DREQ1 (2-4H) (2-4H) DRAK0 R230 DRAK1 33 R203 68 R202 68 110 DRAK0 113 DRAK1 (2-4H) /DACK0 R205 68 2 DACK0 (2-3H) /DACK1 R204 68 5 DACK1 3 (2-3G) SHCK R3 33 R235 10K DG R2 33 R236 10K C220 DG N.M. DG C219 (2-3G) DG (7-5D) R174 3.3K /WDTOVF /RESET C222 1000P DG 44 WDTOVF 108 RES 107 CK 96 EXTAL 94 XTAL X1 6.912MHz C162 27P DG C163 22P C63 C62 N.M. DG (9-3I) (9-3I) (2-6B) C226 PLLVCC 470P C224 0.1 PLLVSS R238 200 +5V C217 0.1 CHK24V DG R240 105 3K 104 106 127 128 C27 124 1000P 126 PLLCAP PLLVCC PLLVSS AVREF AVCC AVSS PF7/AN7 2 C182 (9-5E) PIN 1000P R201 (9-5A) CI 470 DG C26 1000P 125 PF6/AN6 123 PF5/AN5 122 AN4/PF4 121 PF3/AN3 (9-5A) (9-5A) RHS HS R168 270 120 PF2/AN2 119 PF1/AN1 DG N.M. (9-1G) RTH R200 470 R333 2K 118 AN0/PF0 130 D107 DA204K +5V 4 3 +5V N.M. R197 BR11(B) 10K x 4 100 DG 6 5 +5V 1 (9-4A) TELMUTE2 (6-4A) GAINC (6-3H) SPMUTE (9-5A) TELMUTE A B C 131 1K R199 132 R231 470 BR11(A) 2 CML 7 10K x 4 RCVOL (9-5A) (6-2A) (9-3A) 133 270R233 134 R198 470 R232 136 52 270 8 51 R370 1 +5V D PA17 PA16 PA9 PA8 PA5 PA4 PA3 PA2 PA1 PA0 (6-5A) (7-2A) R371MIC MUTE 270 LAMPON 101 100 (7-3E) 29 R342 68 PNLON PA20 VFM (9-4E) PA21 4 R341 100 R334 270 TP106 PD29 PD16 PA23 PA22 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15 PE12 PE11 PE10 PE9 PE8 TIOC2B/PE7 TIOC2A/PE6 TIOC1B/PE5 TIOC1A/PE4 PD31 PD30 IRQ6 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 BACK BREQ PD24 46 45 114 MPXB MPXA VOLC VOLB VOLA MB MA PWMSIN PMCLK (9-3A) (9-3A) (6-3F) (6-2F) (6-2F) (9-5E) (9-5I) (9-5I) (9-5I) 115 116 137 138 R161 270 R162 270 R193 270 139 140 142 R228 N.M. E IC5 SH7041 32bit RISC MICROPROCESSOR 143 R195 73 8 1 74 7 2 75 6 3 76 5 4 8 78 1 BR5 33 x 4 7 80 2 6 81 3 5 82 4 BR22 84 33 x 4 83 8 1 7 2 86 6 3 88 5 4 8 89 1 BR8 33 x 4 2 3 4 F G CA2 100P x 4 1 4 3 2 1 2 3 4 1 2 3 4 1 2 H I 1/9 D[15:0] D15 (2-6G) D14 (3-3D) D13 (3-3I) D12 (3-6C) D11 (3-6F) D10 D9 (3-6I) (4-5E) 6 D8 (5-5D) D7 (8-3A) D6 D5 D4 D3 D2 D1 D0 4 3 CA4 100P x 4 5 BR23 33 x 4 5 6 7 8 5 6 7 8 5 6 7 8 5 6 7 8 5 92 6 91 7 90 C183 NMI 98 2200P A21 41 A20 39 A19 38 1 A18 37 2 A17 27 3 A16 25 4 A15 24 A14 23 A13 22 A12 21 A11 20 8 A10 19 7 A9 18 6 A8 17 5 A7 16 A6 15 A5 13 A4 11 A3 10 8 A2 9 7 A1 8 6 A0 7 5 MD3 95 MD2 97 MD1 102 MD0 103 VCC 135 VCC 112 VCC 99 VCC 85 VCC 77 VCC 63 VCC 40 VCC 26 VCC 12 CA1 100P x 4 CA3 100P x 4 R206 R208 10K DG 100 USOUT R125 33 R126 33 8 7 BR7 6 33 x 4 5 8 1 7 2 BR6 6 3 33 x 4 5 4 1 2 BR24 3 33 x 4 4 8 1 7 2 BR9 6 3 100 x 4 5 4 1 2 BR25 3 100 x 4 4 DG (2-3B) A[21:0] A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 (2-5H) (2-5H) (3-3A) (3-3G) (3-4D) (3-5F) (3-6A) (3-6D) (4-5E) (5-4D) 4 (8-5A) 3 C120 +5V C121 C118 C117 C112 C113 C114 C116 C115 C110 C111 C147 C148 C149 C150 C155 C156 C152 C153 C144 C145 C146 DG +5VSH DG 18P x 22 2 VSS 14 28 VSS 42 VSS VSS 61 79 VSS 87 VSS VSS 93 117 VSS 141 VSS VSS 129 71 VSS 55 VSS VSS 35 VSS 6 PD28 57 PD27 58 PD26 PD25 60 59 PE13 144 R196 64 IRQ7 56 72 R173 /MEN (9-5E) MPXC (9-3A) N.M. 1K TSEN 1 TP107 BZCONT 3 R339 0 E DG ZC (9-4I) C324 N.M. DG F 0.1 x 9 G C37 C221 C180 C181 C160 C24 C25 C157 C179 1 H I (9-5E) (6-3F) CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT FO-2970MU