Sharp PC-1246 Service Manual Download | Manualshive

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Summary of Contents for PC-1246

Page 1: ...erating Temperature Power Supply PC 1246 PC 1247 OOZPC1247SM E MODEL CODE Memory Protection Editing Features Basic calculations Addition substraction multi plication division Function calculations Trigonometric and inverse trigonometric functions loga tithmic and exponential func tions angle conversion square root interger absolute sign operators tt Cursor left and right r character insert INS cha...

Page 2: ...ecorder interface input 23 co Out Option cassette tape recorder interface signal buzzer signal output 24 R W Out Write clock normally high 25 DI01 In Out Data bus normally low I I 2 2 32 DIOB In Out Data bus normally low 33 B1 Out Address bus low during standby Also used for peripheral data output port Dout 2 2 2 2 43 B11 Out Address bus low during standby Also used for peripheral data output port...

Page 3: ...If f f in a fJ fJ fJ fJ fJ fJ sn in fJ o fJ sn in s _ _ 80 75 70 65 60 55 00 1 1 2 Ii H 6 Hl5 I H 4 LSI 1 e H 3 iwi Hl2 H 11 CPU ESR J H 10 H9 H7 SC61720D03 I H6 U H5 H4 H3 H2 UI Hl 0 0 l 5 10 15 20 25 I 1 I u 1 8 1J co lTIJr 0 l c x c u u 2 2 2 2 R9 180Kn IU C Olp H R7 l 3M l R3 R5 R6 R4 VR R9 XI 1024 KHz 47Kn L6 l 8 l Kn Kn 20Kn HOf r l r 2SAll79 C9 1 1 O luF C O I I O lpF rcloPF C2 _ OOPF C l 1...

Page 4: ...i i cc cc Ul Ul Ul Ul Ul ifJ 65 60 55 51 s 36 0 s 37 S40 Bl3 B12 LSI sn B 10 B9 CPU ESR J 0 88 r B7 B6 85 SC61720D03 B4 B3 ON cc OFF R8 B2 Mn POWER Slide SW Bl DlOS 15 20 25 cc 0 0 8 u u 0 0 Ml SSS SSS SSS SSS SSS S SSS SSS SS SH HH HH HH H 30 29 28 27 26 25 24 23 22 21 15 14 13 12 11 10 9 8 7 6 5 4 3 2 l 16 15 14 13 12 11 10 9 s s 35 34 ...

Page 5: ...r z 0 1 0 a J t z e l a ...

Page 6: ......

Page 7: ...OOK l ClO I I O lpF c n 11 O lpF 25 0 0 1 5 10 15 20 rio 0 lffi c x x x C ifi R7 l 3M l YR Xl 1024 20K _l KHz Hrn doPF C2 lOOPF c Lt 0 03 µF E Hl H2 H6 H5 H4 SC61720D03 H7 H9 H 10 Hll CPU ESR J Hl2 0 H13 LS I 1 H14 Hl5 60 65 70 51 5 r 5 r 5 r B B f il r 0 B B B r B B E _D aoco 55 l _so 75 54 00 r 111 2 _ Hl6 s sis s s sis s s s s s sis s 5 s s s s s s 5 s s s 5 5 s s l s l s l sl s s 11 12113 14 1...

Page 8: ...B 2KB B3 A2 RAM RAM B Al B HMG IG HMG l6 AO AO DI D7 Dl D7 D2 D6 D2 DG D3 D5 D3 D5 vcc D4 Vc c D4 Bil BIO B9 B8 B7 BG B5 iii B4 B3 ec OFF R8 B2 lM l POWER Slide SW Bl Dl08 SSSSSSSSSSSSSSSSSSHHHHHHHH 23 22 21 15 14 13 12 ll 10 9 8 7 G 5 4 3 2 l is 15 14 13 12 II IO 9 ...

Page 9: ...z 0 t CJ 0 Q CJ J z e CJ CJ t a ...

Page 10: ...0 o 1 z a i ...

Page 11: ...time of battery replacement After replacement of the battery turn power on and push the RESET switch 9 3 RAM capacity check Turn the slide switch ON push the I MODE I switch to go into the PRO mode Enter NJ EJ WJ QJ I ENTER I and MJ ENTER to have the following figure on the displav PC 1246 1278 PC 1247 3326 Short or open ON with GND __J ON GND At the time of on with the slide switch at ON position...

Page 12: ...AA c Resistor 1 8W 220 5 Rl 0 0 22 VRS TP2BD335J AA c Resistor l 8W 3 3MO 5 Rl0 11 0 0 23 VRS TP2BD472J AA c Resistor 1 8W 4 7KO 5 R2 14 0 0 24 VRS TP2BD473J AA c Resistor l 8W 47KO 5 R3 0 0 25 VRS TP2BD563J AA c Resistor l 8W 56KO 5 R4 0 0 26 RH TX1012CCZZ AC B Transistor 2SC2812 TR2 0 27 VRS TP2BD104J AA c Resistor l 8W lOOKO 5 R1213 0 Unit 901 D U N T K 8 2 1 7 C C Z Z BP N g Main PWB unit 0 DU...

Page 13: ...18 14 13 19 17 PC 1246 PC 1247 I ERROR GUIDE I 1 I I iI I 18 8 9 10 9 7 2 ...

Page 14: ...SHARP CORPORATION Industrial Instruments Group Quality Reliability Control Center Yamatokoriyama Nara 639 11 Japan 1 984 December Printed in Japan SHARP PC 1246 PC 1247 ...

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