Sharp MS722 Service Manual - Page 31

P30 P31 P32 MD-MS722/C/W/MS721W R102 22K TP100 +B TP139 6 R104 22K 01 2K P487 B R103 22K R207 680 TP202 TP204 L204 XL201 33.8688MHz CK207 C211 5P(CH) LDCNT2 LDCNT1 EFMO R222 1M TP208 FEMON TP211 C204 0.47 C212 8P(CH) TP212 TP205 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 VDD1 VPD VXI ADPON DAPON OPTCNT DCNT1 EMPH1 LDCNT2 LDCNT1 X700KO DGND VDD3 DOUT DIN X1O X1I DGND DFCK BCLK LRCK ADDATA DADATA TP209 TP210 CK201 CK202 CK203 FOK CK204 SENSE CIN CK205 MCCK CK206 DINT C203 R2040.1 XRT 1K SYD0 SYD1 SYD2 SYD3 SYD4 SYD5 SYD6 SYD7 SYWR SYRD SYRS 76 77 78 79 80 SBSY 81 SFSY 82 FOK 83 SENSE 84 COUT 85 MCCK 86 DINTX 87 VDD1 88 DGND 89 RSTX 90 SYSD0 91 SYSD1 92 SYSD2 93 SYSD3 94 SYSD4 95 SYSD5 96 SYSD6 97 98 99 100 50 49 48 47 76 TOTMON 77 TEMON 78 SBCK 79 SBO 50 EFMO RAD0 46 49 PLCK RAD1 45 48 ACRCER 47 TCRS RAWEX RARASX 44 43 RAA9 42 RAD3 41 IC201 LR37811 RAD2 40 RACASX 39 DGND 38 ENDEC LSI RAOEX 37 RAA8 36 RAA7 35 97 SYSD7 98 SYWRX 99 SYRDX 100 SYRS 29 RAA0 28 RAA1 27 RAA2 26 RAA3 RAA6 34 RAA5 33 RAA4 32 VDD2 31 RAA10 30 29 28 27 26 CK224 TP203 CK222 TEST0 TEST1 TEST2 X176KO FODRF FODRR TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR TCG BIN FIN VBAT WBI VDD1 DGND AGND AIN EIN EFMI AVCC EFMMON 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 VCCENDEC C201 1/16 TP201 C207 0.1 R205 680K C205 0.1 R206 270K TP206 L100 10µH C100 10/6.3 TP207 FODRF FODRR TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR L201 22µH X176KO TP200 DADATA ADDATA DFCK BCLK LRCK DIN ADPON DAPON OPTCNT EMPH1 1 VCC 2 I/O1 3 I/O2 4 WE 5 RAS 6 GND 24 I/O4 23 I/O3 22 CAS 21 OE 20 A9 19 7 A10 8 A0 9 A1 10 A2 11 A3 12 VCC A8 18 A7 17 A6 16 A5 15 A4 14 GND 13 16BIT D-RAM IC202 IX2723AF VCCDRAM C202 47/6.3 L202 100µH VCC2R5V DCNT1 TP413 TP414 RDATA PHOLD SYD2 SYD1 SYD0 SYWR SYRD SYRS PCNT1 SYD7 SYD6 SYD5 SYD4 SYD3 IC402 S29L294A EE-PROM TP407 R413 1K R411 100K R414 1K 1 TP408 CS VCC 8 2 SK NC 7 R412 3 10K TP411 DO PRTC 6 TP410 R415 1K TP409 4 DI GND 5 1 VCC 5 2 3 GND 4 IC404 7SH00FU NAND GATE PDCNT DISCPR DSPSTB DSPDAT DSPSCK (Only Serial No. 8110180) C422 10/6.3 R422 100K R401 100K RCAULT MCPGIN INPGIN INPGCK RCPCNT2 TP416 TP417 R402 100K LDON OPICGA RFLAT 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 DISCIN SPIN CIN RMDAT VSS PDCNT DISCPR SYD2 SYD1 SYD0 SYWR SYRD SYRS PCNT1 VSS PHOLD EEPK EEPD EPCS DSPSCK DSPSTB DSPDAT 26 100 27 99 28 98 29 SYD6 EJSW 97 30 SYD7 26 SYD3 100 CKSTP HDON 96 31 VSS 27 SYD4 32 RCLAT 28 SYD5 99 PCNT2 XRST 95 98 VCC FOK 94 33 MCPGI SENSE 93 34 INPGI DCNT1M 92 35 INPGCK 36 RCPCNT 37 TEST1 38 TEST0 39 JPNP 40 VCC IC401 IX2772AF SYSTEM MICROCOMPUTER SWPUP 91 MCMON 90 START 89 VSS 88 AVSS 87 LDVAR 86 41 RCLED TEMP 85 42 ELLVL HKEY2 84 43 44 45 LDON OPICGA 48 49 ELON VSS 46 RFLAT 50 RADAT HKEY1 83 RKEY 82 PLVINN 81 PLVDCI 80 47 RACLK PLVDRY 79 48 Vref 78 49 AVCC 77 50 DINT 76 (JOG1) VSS STOP PLAY EMPH0 (JOG0) PBLAT REC PBOPON RPLAY KHOLD BUZOUT MD0 MD1 INNSW WDTOVF MD2 RESET NMI µSTBY VCC XTAL EXTAL 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 SPIN CIN HDON EJECT SW401 4 3 2 1 R406 PCNT2 100K TP406 R405 10K TP405 XRT FOK SENSE TP415 START TP401 C401 0.1 LDVAR TEMP HKEY2 HKEY1 INN DCI DRY DINT R424 22K TP402 R425 22K R423 22K RKEY 22K R426 TP400 XL401 4.194MHz JOG1 JOG0 HSTOP EMPH0 PBAULT TP412 PBMUTE BEEP TP404 INNSW TP403 ELLVL RESET R407 10K H F+ F- TP610 T- T+ 01 C602 C603 1 1 C604 1 C605 0.1 C600 22/6.3 L600 2.2 SW402 HOLD R408 100K D431 IC431 1SS361 S80820LN RESET C431 R431 0.47 330K 1 OUT VSS 4 2 VDD 3 R458 56K HREC JOG0 JOG1 R460 47K HKEY2 R459 47K HSTOP R455 5.6K R456 8.2K R457 18K HPLAY HKEY1 R451 R452 R453 R454 5.6K 8.2K 18K 56K R482 18K R481 36K C481 0.1 DSPST DSPSC DSPDA C505 0.001 121110 9 8 7 6 5 4 3 2 1 3.3/10 C503 VRDA VRAD PWAD AINL VCML VCMR AINR CMODE MCLK DEM1 PWDA LRCK SDTO SCLK DEM0 AOUTL AOUTR VCOM AGND VA VB SDTI DGND VD CONVERTER AK4519VF AD/DA IC501 0.001 C506 13141516171819 202122 2324 C508 1 C500 10/6.3 C507 10/6.3 R500 4.7 IC771 C774 TK71225M 1 +B 4 3 2 C 5 1 0. C773 0.22 2.5V REGULATOR +B L771 47µH TP771 C771 47/6.3 C772 47/6.3 L862 47µH TP772 C869 47/6.3 EMPH0 C868 1 C864 47/6.3 C200 1 1 3 2 IC200 62FP2002 2V REGULATOR +B +B +B C862 C836 1/16 L861 4.7µH D8 F10 0.1 D852 F1J2F D836 1SS372 R854 0.2M R853 330K C853 10P C837 0.1 (From Serial No. 81201801) 1 VREF 2 DB C857 10(CH) R855 I C859 0.001 270K POW 1 VREF R860 33K 2 DB R858 R851 100K 10K 3 EAIN+ 100K R852 C851 68P (CH) 4 EAIN5 EAOUT 6 GND (Only Serial No. 81101800) 1 VREF 2 DB C822 8P R824 R826 390K 220K R821 R822 680K 3 EAIN+ 3.3M R823 4 EAIN- 100K C821 5 EAOUT 68P (CH) 6 GND L821 10 (CH) IC821 CPH3303 PO D821 F10J2E C825 3.3/10 C826 100/6.3 (Only Serial No. 81101800) 220/6.3 (From Serial No. 81201801) ELON AUSCLK AUDATA R P • The numbers 1 to 18 are waveform numbers shown in page 40. 7 8 9 10 11 12 Figure 31 SCHEMATIC DIAGRAM (2/4) - 31 -