Download SERVICE MANUAL - Sharp Pocket Computers
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SERVICE MANUAL PC-1280 SHARP CODE: OOZPC1280SM/E POCKET COMPUTER MODEL Pc-12ae 0 I POCKET COMPUTER .~I SP.!;,A y s I z E: 2 4* 2 PC-1280 j -+--H--1t--LCD Screen LINES 11-Pin Connector""""'"'"""'.. ~ ~LCD Contrast Dial Iii================~~ fQ 1~ BS @] ms§~t:Jri:Jl§lrarnrn l§J f!'\l !ID ~ ITJ ~ l RAM Slot OH [SJ 1"1$ --+-+=~'11-+H+-Cell Compartment imi:I ffi!J llEI l!EJ CfJ IE rID B @ cD § ~ W 0[§][Q](f]l2J[ij]Q]@[QEJ I IT) ~[8](912][§]~[00r@J[QJ [§] ~ ra CT] 0 0 - Memory Backup Cell Compartment Keyboard c:J OJ Memory Protect Switch (Internal memory only) Top View of PC-1280 Bottom View of PC-1280 1. INTRODUCTION PC-1280 was designed to close with a tight fit to protect its LCD screen and keyboard, and has the facility for double-precision calculations. 2. Specifications Model: PC-1280 Pocket Computer Processor: 8-bit CMOS CPU Programming Language: BASIC System ROM: 136K Bytes Memory Capacity: System internal 1.6K Bytes Approx. Data area .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. . .. . .. .. .. . .. .. .. .. .. .. .. . 208 Bytes Program/Data Area 6558 Bytes Reserve Area .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 144 Bytes (Memory expandable to 40KB using RAM cards) Stack: Sub-routine: 1 O stacks Function: 16 stacks FOR-NEXT: 5 stacks Data: 8 stacks Operators: Addition, subtraction, multiplication, division, trigonometric, and inverse trigonometric functions, logarithmic and exponential functions, angle conversion, square and square root, sign, absolute, integer, relational operators, logical operators etc. Numeric Precision: 1 O digits (single-precision mode) I 20 digits (double-precision mode) (mantissa) + 2 digits (exponent). Editing Features: Cursor left and right, line up and down, character insert, character delete. Memory Protection: CMOS Battery backup. Interface Capability: 11 pin (For cassette interface, disk, printer, etc.) Ram Card Slot: Cards of 2KB, 4KB, BKB, 16KB, or 32KB. Display: 2-line 24-digit liquid crystal display with 5x7 dot characters. Keys: 72 keys. Alphabetic, numeric, special symbols, and functions. Numeric pad. User defined keys. SHARP CORPORATION - PC-1280 Dimensions: 135(W) x 70.5(D) x 19.2(H)mm (closed) 5.31(W)x2.76(D)x0.76(H) inches 135(W)x141(D)x9.6(H) mm (open) 5.31 (W}x5.55(D)x0.38(H) inches Weight: Approximately 180g (0.4 lbs.) (with cells) Accessories: Lithium cells (built in) and operation manual. Options: Plug-in RAM cards 2KB (CE-210M), 4KB (CE-211 M), 8KB (CE-212M), 16KB (CE-2H16M), 32KB (CE-2H32M) Cassette Tape Recorder (CE-152) Printer/Cassette Interface (CE-126P) Pocket Disk Drive (CE-140F). Power Supply: 6.0V DC: Lithium cells. type: CR-2032x2 Backup Battery: Built-in memory backup cell. type: CR-2032 Power Consumption: 6.0V DC @ 0.03W Approximately 120 hours of continuous operation under normal conditions (based on 1 O minutes of operation or program execution and 50 minutes of display per hour at a temperature of 20°C). The time may vary slightly depending on usage and the type of battery used. Operating Temperature: 0°-40°C (32°-140°F) PC-1280 CE-124 CE-152 ea~~e~:1 ••••••••••DOOCJ ••••••••••CJCJOCJ ••••••••-CICJCJCJ ········••CJCJO[:j CE-126P ~: CE-210M (2KB) CE-211 M (4KB) CE-212M (8KB) CE-2H16M (16KB) CE-2H32M {32k8) CE-140F 3. Operating Battery Life and Consumption Power PC-1280 battery Lithium battery: CR-2032x2pcs Capacity: 170mAH 10. Open the computer, switch on the power and look at the display. If it looks like the following with an * displayed, Press the ALL RESET button. * Terminal voltage: 6.0V 11. Turn OFF the power, remove the slot cover, and slide the Memory Protect Switch to position A. 12. Replace the RAM card, if used. 13. Replace the slot cover and slide the switch back to the LOCK position. Consumption current PC-1280 When OFF: PC-1280When0N: 45µcA, max. 400µcA, max. Replacing memory backup cell The above is at the room temperature of 20°C and may vary depending on conditions. The memory backup cell in your PC-1280 has an effective life of about five years under normal operating conditions. ate that temperature extremes can shorten cell life and cause memory losses. When the memory backup cell was installed at the factory, a label was attached above the memory protect switch, sho ·ng the date of installation and a control code. 4. Battery Replacement Replacing the operating cells 1. Turn the power OFF. 2. Close the computer and turn it over. Follow the diagrams on the slot cover to remove the cover. 3. Remove the RAM card if present. 4. Slide the Memory Protect Switch to position B. THIS IS IMPORTANT and must be done before removing the operating cells or data and programs in memory will be lost. Replacing Memory Backup Cell DO NOT REPLACE THE MEMORY BACKUP CELL WHEN OPERATING CELLS ARE REMOVED OR WEAK (mil DISPLAYED WITH POWER ON): MEMORY CONTENTS WILL BE LOST. 1. Turn OFF the power, close the computer and tum it over. 2. Remove the slot cover and RAM card if present 3. Slide the Memory Protect Switch to position B. 4. Release the screw (1) retaining the cover of the Backup Cell compartment and remove the cover (2). 5. Replace the cell (3), making sure that the new cell is inserted with the correct polarity (positive pole down). 6. Slide the Memory Protect Switch back to position A. 7. Replace the slot cover. Replacing Operating Cells 5. Press the tab (1) and slide open the cell-compartment cover (2). Remove the two lithium cells (3). 6. Replace the two cells, taking care that they are inserted with the correct polarity, as shown in the diagram. 7. Replace the cell compartment cover (4). 8. Press the ALL RESET button. THIS IS IMPORTANT AND MUST BE DONE TO PRESERVE PROGRAMS AND DATA. 9. Replace the slot cover and slide the switch to the Lock position. -2- - PC-1280 6. Low Battery Detect Circuit 5. Memory Map Discussed next is about the low battery detect circuit which is incorporated in the PC-1280. As shown in the figure BELOW, when the input voltage VIN goes above the detect voltage level VD, its output turns to high level. On the contrary, when VIN goes below VD, the output turns to low level. Two levels of caution and stop are detected by a single IC (LB iC = MN1280). The input voltage added to the input pin (No.2) is divided by R1 and R2, and R2 is turned on/off by the CAU signal of G.A. As shown in Fig.3, when the supply voltage drops below the caution level, the BATT symbol comes to activate. When it further drops down below the stop level, the symbol goes out. To sense the caution level, the CAU line of the G.A. is set active (low) and the state on LB of the G.A. is checked. If LB is at a low, the symbol activates. When the caution label is sensed, the CAU line is set off (high impedance). With this, the voltage increases on the LB iC pin 2 because there is no more voltage division by resistors, so that the output changes from low to high level. As the LB line of the G.A. is sensed again, the stop level is detected. During standby, F01 of the CPU and CAU of the G.A. are set at high impedance and Di 1 is inserted to correct the battery drop during standby and operation. The ON/BRK and RESET switch became inoperative after the stop level has been detected. 2800,~---DISP 1 2AO 0 .__ _ 2 DISP oo~o 2COO -~----~ 1 PC-1470U/75 PC-1280 POB A13 sent on POS G.A. POS selection 3ooo Low battery latch CE 3 2 o o Caution PON latch write CE 2EOO 34 o o ROM bank CE 3600 3800 3AOO 3COO 3EOO RAM bank address P05 Port write CE P06 P07 Port write CE ~----P08 Memory map POI P02 P03 Key strobe write CE ~----P04 4000 ~--------->-03 02 nt 0 DO 0 0000 KS 1 0 Internal ROM, KS8 KS1-KS8 SKB CPU 2800 4000 Di 1 FOi (P-Ch open)I-----___. 2000 RI PISP & port System ROM I 1 ' 16KBX8BANK ~ BANK RO Rl I I - 'I R3 R2 I I I Di 2 GA CAU -----' R7 (N-ch open) 8000 Va; AO 00 ------ (Fig. 1] (V)TIN \'oM \'oL External slot Q) ~ 2.0V cooo ------ ~ Sym - Caution label 0"----'----'--'----'-_,_4 -5: ·_bs>! P.N_ _ OUT (V) Stop level c. ::> rn EOOO (V) Internal RAM, -- SKB SLT2 [Fig. 3] Voltage detect IC operation T i SLTl [Fig. 2] Memory mapping according to RAM card combination. 2K 4K 16 K 8K 32 K 800 Internal RAM 000 cooo D800 EOOO FFFF DOOO SLOT 1 SLOT! Internal RAM Internal RAM D800-FFFF FFFF lOK DOOO-FFFF SLOT! sior i SLOT! Internal FFF 12K FFF COOO-FFFF -3- 16K Internal RAM AOOO-FFFF 9FFF FF 24K 8000-FFFF 8000-9FFF 40K - PC-1280 7. LSI Description 7-1. CPU {SC61860A38) signal description Pin No Signal name In/Out 1 2 3 4 5 6 7 8 9 10 11 12 13 A01 R/W 0AL TES 01 00 RES XIN XON XOUT DIS HA IA8 Out Out Out In In Out In In In Out Out Out In/Out I I I 20 21 22 23 24 25 26 27 28 29 30 31 32 IA1 IBB IB7 IB6 IB5 IB4 IB3 IB2 IB1 VM VA GND H1 In/Out - In In In In In In In In Out I I I 45 46·47 48 49 50 51 52 53 H14 H15·H16 VB VDIS Out vcc voe VGG 08 In In In Out In In/Out I I I 60 61 62 63 64 65 66 01 F05 F04 F03 F02 F01 BOB In/Out Out Out Out Out Out I I I 73 74 B01 A08 Out Out I I I 80 A02 Out Description (Standby = power off) Address bus AO, high during standby Write clock, normally high Address latch. Clock used to latch the address of the LCD driver. Test pin, normally low. Oscillator input Oscillator output Reset input, reset with a high state of signal. Cassette signal input ON/BRK key input, normally pulled down to low level. Cassette signal and buzzer signal output LCD driver control signal, high during displaying. LCD driver sync clock Key input/key strobe I Key input/key strobe, low during standby. Not used. Not used. Not used. 11-pin ACK (acknowledge on 11-pin interface) 11-pin DIN (data input on 11-pin interface) 11-pin DOUT (data output on 11-pin interface) 11-pin 102 (data input on 11-pin interface) 11-pin 101 (data input on 11-pin interface) LCD drive power LCD drive power (+)supply LCD backplate signal, 4-level pulse during displaying (1 /14 duty) I LCD backplate signal, 4 level pulse during displaying (1/14 duty) Not used (because of 1 /14 duty) LCD drive power, high during standby LCD drive power, high during standby LCD drive power, high during standby LCD drive power, high during standby (-)supply Data bus, 07, normally high impedance I Data bus, DO, normally high impedance Gate array chip enable (CE) ROM chip enable RAM card bank select (BA) Not used. Low battery detect, high impedanceduring standby. Address bus A 15, high during standby. ( Address bus A 1, high during standby. -4- ~ - PC-1280 7-2. Gate array (LZ92K38} signal description Pin No 1 2 3 Signal name In/Out BA CE DOO In In In I I I 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 D03 GND P01 P02 P03 P04 P05 NC SLTB AS3B AS1 AS2 AS3 AF15 AF16 SLT1 SLT2 DSP1 DSP2 RESO KON LB RESI BAK VDD GND CAU KS1 In In Out Out Out Out Out Out Out Out Out Out Out Out Out Out Out Out Out Out In In In In In Out Out I I I 40 41 42 KS8 R/W A9 Out In In Description Bank select Chip enable Data bus I Data bus (-)supply t t-pin 101 (P-channel open output) 11-pin 102 (P-channel open output) 11-pin DOUT (P-channelopen output) 11-pin DIN (P-channel open output) 11-pin BUSY (P-channel open output) Not used. Not used. Not used. System ROM 14 and RAM A 11 System ROM 15 and RAM A 12 System ROM 16 and RAM A 13 RAM card slot A 15 RAMcardA16 RAM card slot chip enable Internal RAM chip enable DISPCHIP1 chip enable DISPCHIP2 chip enable Reset output to CPU RESET line, normally low. ON/BAK output to CPU KON line, normally low. Low battery detect, low at battery low. Reset input, normally pulled down. ON/BAK key input, normally pulled down. (+)supply (-)supply Low battery symbol activating voltage detect line, high impedance after the activation of the symbol. Key strobe (P-channel open output) I Key strobe (P-channel open output) Write clock Address bus I I I I 48 A15 In Address bus -5- -PC-1280 8. Service Precautions 2. Do the reverse sequence of the above to assemble. NOTE: When removing CAB-A, be careful not to separate the static tape. Each cabinet is called as follows: Display side bottom cabinet: CAB-A Display side top cabinet: CAB-B keyboard side bottom cabinet: CAB-C Keyboard side top cabinet: CAB-D 8-2. Installationof CAB-C * * CAB-A Make sure that the pin is properly engaged into the hole. When mating CAB-C to CAB-D, push CAB-C all the way in the arrowhead A to achieve firm engagement. Tighten the screw with the unit placed on the special table. CAB-D ~J li 8-1. Removal and installationof CAB-A Procedure to mate CAB-A to CAB-B. Latch CAB-A ~[ [ Latch I @f~=:::::::::.::::=:::::::::.::::~-~=============~w I (Fig.1) CAB-B ~ Pin in CAB-D (keyboard side top cabinet) CAB-C Hole in CAB-C (keyboard side bottom cabinet) *The pin must be properly and firmly engaged into the hole. 8-3. Installationof the contactto the LOCK switch knob Latch B * Two contacts may be attached to the knob, but it has to be installed on the location shown in the figure. After installing the contact, it has to be caulked to fix it secure. I l Contact (Fig.2) 1. Engage the latch A shown in Fig.2 in a manner as shown with G) in Fig.1. 2. Engage the latch B shown in Fig.2. 3. Engage the latch C shown in Fig.2 in a manner as shown with ®in Fig.1. Knob Procedure to remove CAB-A 1. As shown in the figure, insert your nail in a clearance between CAB-A and CAB-C and push it in the arrow direction to disengage the latch C (Fig.2) at two locations. CAB-C must be disengaged first to achieve easier removal. -6- - PC-1280 8-4. Installation of PWB, keysheet, etc. Buzzer leads G) Assemble the blind sheet and the main PWB unit onto CAB-B. ® Insert rubber keys in CAB-D, then insert upper half of the key sheet. Match the guide pins and key sheet holding pins in their CAB-A A Black positions. @ Match the key spacer with the guide pin and insert. © Fold back the lower half of the key sheet and insert only the terminal onto the guide pin. NOTE: Leave the lower side key sheet uninserted onto CAB-D guide pin and holding pin and the folded area loose (Fig.1 ). Red (Fig.4) CAB-B (display side top cabinet) Main PWB unit ® Bring the display side bottom cabinet (CAB-A). Solder the buzzer leads first (Fig.4) and fasten the terminal lug of the static tape using two tapping screw. @ Mate CAB-A with CAB-B. ® Close the unit halfway and mount the lower half of the key sheet and the memory PWB on CAB-D. @ Mate CAB-C. Blind sheet (Fig.5) CAB-D (keyboard side top cabinet) (Fig.1) FPC Memory PWB unit (Fig.6) 8-5. Replacement of the static tape The static tape must be replaced with a new one once after it has been removed from the aluminum panel. Wipe away residual glue after bonding. Check ground continuity after the installation, in reference to 8-6. (Fig.2) 8-6. Ground continuitycheck ® Mount the memory PWB unit in Fig.2 and insert only the FPC terminal onto the CAB-B guide pin. NOTE: Do not insert the memory PWB onto the CAB-D guide pin yet. @ Insert the mask sheet and fixing rubber (Fig.3) and fold back a part of the FPC and insert it onto the CAB-B guide pin. Make sure that the resistance between the display side cosmetic panel and the RAM card lid is not more than 50. 8-7. Internal RAM capacity and auto-power off functionalchecks CV Match the angle to the CAB-B guide pin and fasten it with four screws. NOTE: Tighten two screws in the center first, then two more adjacent to it. -: The contents of the memory will be erased after the following is conducted. (j) Depress the ALL RESET switch. The following will be displayed. MEM$="2" Guide pin ® ® © ® (Fig.3) -7- MEMORY ALL CLEAR OK? Push the [Y] key. Type [M) and [ENTER]. "6558" will come displayed. Leave it in the above state for more than 14 minutes, then make sure that power has been turned off. Push the [ON] key to bring the display message in ® above. T - PC-1280 8-8. Precautions 8-9. Display side cabinet and keyboard side cabinet • All components must be closely attached to the PWB and soldered. •When the LSI is replaced, use KR19RAM to solder with (see Service Information PS-009). • The 0.1 µ.F ceramic capacitor (RC-KZ1054CCZZ) inserted across the KON pin of GA (pin 26) and the VGG side of the 0.033µ.F must be handled in the following manner: The above two cabinets are mated together with the spring pin in use. To replace one of the cabinets, it is possible to remove the spring pin by scraping off the cabinet body using such as wire cutter, but the spring pin once removed may not be used again. 9. Check-Out with the Test Program A test program is contained in the ROM. •Check item (1) RAM card read after (2) 11-pin connector 1/0 (3) 15-pin connector 1/0 NOTE: The above item • The capacitor must be inserted to the 11-pin connector in the following manner: write test line tests line tests (3) is not used by the PC-1280. • Tools required The PC-1360 special tool UKOGC3020CSZZ (price rank: BC) is used for (2) and (3). • Description The RAM contents must be saved on such as tape before conducting the above test item (1 ), because the program and data are destroyed during the test. OFF) (Power Turn power on with the following four keys depressed at the same time. ···~GIJIE]IQI PC-1280··· • The resistor (1 OOkll) must be inserted in the following manner: PC-1475 J···!2J ~ I (MENU) I I:RAM ITl[B] 2:11PIN 3:15PIN Type [I) • The diode must be inserted in the following manner: (I) RAM test (2) 11-pin check Type [2J Type [ID (3) 23 POWER switch ~----•(Power 28 __ Tu_be_2_7 ., NOTE-2: • See the table below for the size of jumper wire. Size 140 J2 40 J3 105 • The capacitor (RC-K1E104HCZZ) in the following manner: OFF) •1 NOTE-1: J1 15-pin check (Not necessary for the PC-1280) x 2 pieces must be inserted -8- Power can be turned off while the above message is on display. If the test program fails to start, check keys first. • Details of check items (1) RAM test (2) t t-pin test Set the t t-pin connector of the test tool with the t t-pin connector of the unit with the parts side facing up. Menu Menu [I] <RAMl) B:4K D:l6K A:2K C:SK E:32K IA], [BJ, ~. <llPIN) XWAITX P:PASS [DJ, IE] <RAMl) XWAITX IENTERI <llPIN) XOUT:HIGH XIN:LOW IENTERI <RAMl) ERROR OCCURED AT ????H <llPIN) CHECKED JENTERJ <RAMl) (????H-????H Menu IS CHECHED) !ENTER! <RAM2) A=2K NOTE-1: B:4K C:SK IA], D:l6K E:32K rm l!2J• ~. [DJ, See the following for the sequence of the test vs. the test pin. P:PASS See Ip IE] NOTE-3. <RAM2) CD ® ® XOUT->XIN 101->102 © DOUT->DIN DIN->DOUT BUSY-.ACK ® ® 102->101 IENTERI <RAM2) ERROR OCCURED Specialtesltool11-pinoonnector sidecircuil diagram AT ????H NOTE-2: <RAM2) (????H -????H I ENTER IS CHECKED) I Menu OTE-3: OTE-4: The RAM corresponds to the slot in the following way. PC1280 PC1475 RAM1 SLOT SLOT1 RAM2 8KB internal RAM SLOT2 The contents of the RAM are destroyed during the test. To preserve the RAM contents, type the [Pl key to pass the test. -9- Error will not be caused, if signal lines were to short within the unit. .. PC-1280 10. LCD Matrix Circuit ' 11-pin connector H4 H5 HS H7 ,f the test vs. the XOUT-.XIN 101-102 102-101 DOUT-.DIN DIN-.DOUT BUSY-.ACK ss were to short -10- - PC-1280 11. Circuit Diagram 1) The resistor with no comment is 1/aW, J (±5%) 2) The capacitor with no comment is 25WV, (F) Hl-7 L --.. LF-7318E 5 l r rr r r r l ll • '--lE '-- . 54'! ~~ '--jj '-''- SC43536 SISO '-t:ffi St52 '-I I'- -~1= 7 l-- ~t!ti r-- see H~ r:::~ see '-W! l~=N 03 VeAT I~ 111~ 'V 1 .• CR2032 Sil >->-1---' ..J"""l'i"'I ·~ • fil--' ::::~ ...__~ -oo 1= -rv ~ _, SC43536 ~~ _, _, r-- ss J......, ~~ s •>-- I'-~ RESET 6~ COISP2) r--;m CIO 820P(L) VRI 205. _, ::::~ ....... ·~-N I) RIS vv 1001(. ,~ I - 04 ISRl48 c,,',!!· 1 "rl I- A A A vv Rl5 IM wr <:» ~ 3 E1 ~~ ~~ VGG I r r Gi5L - lC9150PCHl ~~"' ! §I LH5310X7 CROM) e Id Rl4 E'~'ll'll::l---· l IM " '-- KSI A/W A • ~1 ;-- i= <r- v- r-:lli =~=l"J l LZ92K38 14 I 05133 L- 9 T st. Tl ... AFI AS3 ~91~ 12 ,-- MN 1280 I II ,.-- ~a 1 a - f'-fHl f'-. ,...___~ ~E: ~~ 02 fG~~,A~ c~1~8 'Cl IJ_!!: ~i ~~~~ ~ SLOT IOK I I r I~~~~~~~ 8K 04364 Rt7 T3~~ ~ _._. ca a.o3.s-cei ' - J"""l'i"'I J T SW If-- >-1-- ..L I J r>. '.:::.J rr-. _, r rr r I ., s ........ '--i:IB s '- OAN202 ~--' I I •I-s >-- COISPI) '-- ee -- CL CO) 10 ....... '-- s • H8-14 CG. A) • ~ ""J! ~~ I GNO..l Vee R/'11' A 0 '----' - ---------_---_ ---- 2 A I A 2 A 3 A 4 A 5 A 6 _, A 7 _, A 8 A 9 >---' AIO AI I Al2 Al3 Al4 .............. Al5 Al6 NC >NC ...... D 0 L-0 I D 2~ D 3~ D 4 D 5 D 6 L-D 7~ CE NC NC OE h OT .___.., .___.., ._____, Vw A 35 ~ Internal lOOK!l > Y4 w r RAM Protect A:SHORT B:OPEN c 8 -11- SW D E I GNO •CAL VA H8-14 _l CR2032*2 VM VG VAi T=1- 5 20K 5 3.3~ VB ¥ VDIS O.lµF RI JO X2 FG 01 RESET SW ca OAN202 GG o , 03s. <ai RIS 1001(. 4 IA6 09 IA7 IA71 SW !AS LOCK:QPEN R7 J:OPEN EX:SHORT I 001< 3 KS8 C5 A38 C6100,cH) IOOP CH) XI CSB768 RB CCPU) IM ~mff ~~TII___. QI 2 A I I OT4 JOOK OTC 144 F.G .o rz 05 !!Pin MT2 GNO OA204K ,------.., I r-+*l-'-+-++-+-~~--,.""1(/rr-=::;-::-~~ : Va; :OT3 Cl2 I Cl3 BUSY OOUT XIH XOUT 01• ACK 102 101 E F G -12- - H 12. Parts & Signal Description Main PWB bottom side j Memory PWB bottom side -13- - PC-1280 Main PWB upper side {1 .2mm heigt MAX) Memory PWB upper side No foil pattern -14- - PC-1280 13. PARTS LIST & GUIDE IT] Exteriors(~~) NO. 1 2 3 4 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 46 101 102 103 PARTS CODE DUNTG1226ECZZ DUNTG1229ECZZ PFiLW1009ECZZ PSHEZ 1019ECZZ DUNTK1227ECZZ PGUMS 10 l 7ECZZ CPWBF1052EC01 QCNCW1306CC1B LX-BZ l 155CCZZ RALMB1030CCZZ PTPEH1213CCZZ PTPEH1026ECZZ DUNT-1230ECZZ PGUMM1015ECZZ LANGT 1011 ECZZ LX-BZ1200CCZZ DUNTG1268ECZZ GFTAS1282CC01 DUNTG1225ECZZ DUNTG1228ECZZ LPiNS1002ECZZ PGUMM1013ECZZ PGUMM1013ECSA PZETL1024ECZZ C p\JiB F 1053EC0 1 MSPRClOllECZZ MSPRClOOlECZZ QCNTM1042CCZZ MSLiP1003ECZZ PGUMM1594CCZZ PGUMS1608CCZZ PZETL1564CCZZ QTANZ1503CCZZ QCNTM1056CC01 JKNBZ1747CCZZ GCABA1030ECZZ QTANZ1504CCZZ LFiX-1190CCSC TLABHl 127ECZZ TLABH1143ECZZ GFTAU1012ECZZ QTANZ1406CCZZ LX-BZ1018ECZZ LX-BZ1147CCZZ LX-BZ l l l 6CCN 1 PSPAPlOOlECZZ TLABH1160ECZZ TLABH1161ECZZ PZETL1029ECZZ TLABZ1008ECZZ TLABS1078ECZZ TLABH1956CCZZ PRICE RANK NEW PART Ex Ja MARK RANK EM N 0 Oisolav cabinet unit (TOD) AP N 0 Display cabinet unit (Too) AD OF N c Polarized filter AB DC N c Mask sheet EV FM N B LCD unit AB DC N c Rubber connector BS NF N E Main PWB unit AK DY c Connector 0 2Din) AA DA c Screw (2X8) AD OF B Buzzer AB DB c Taoe AE 0 J N c static tape AK DY N B Key sheet AB DC N c Fixin2 rubber AC DE N c Fixin2 anzle AA DA c Screw AP EM N 0 Displav cabinet unit (Bottom) AB OB 0 Connector cover N EM 0 Key cabinet unit (ToD) AP N 0 Key cabinet unit (ToD) AA DA N c Sorina oin N B Kev rubber EC N Al c Kev rubber AA DA N c Kev soacer AX FU N Memory PWB unit E AA DA N c Earth sl)ring AB DB c PS sorinz for RAM card AA DA c Slide switch terminal AB DC N c Slide switch knob AB DB c Reset soring rubber AE 0 J c Rubber connector for RAM card AB DC c Insulator sheet AB OB c Battery terminal A AA DA c Contact for slide switch AA OB c PS switch knob AE DK N 0 Kev cabinet unit (Bottom) AB DB c Batterv terminal B AB DC N c Card stcooer N DA c Battery caution label AA N c Battery caution label N 0 Lid for card AE OM AB DC c Battery terminal (tf1iS;l AA DA c Screw AA DA c Screw 12 X 4.5) AA DA c Screw AA DA c Reset spacer DA N c Caution label(Battery replacement) AA N c Caution label(Battery reptacernent) AB DB c Insulator sheet N AA DA c Caution label 0 VCCI label 3 DA AB DB c Protector label -15- DESCRIPTION * ., rr (Jaoan) t 3 '7/~1" t";t. ., (exceot Jaoan) t 3 '7;; ~ 1" t" "/:J'7711i.-'1;I] 7:,,-;,.- r LCDi=- ., r ::J°J.,,::J;t.7'! (Include No.9) J1 ;_,~,<;, i=..., ::J;t.7'1t" ;z i=- ., i=--, r r r 1-tf"'/;t/'11 -t1T'/'i-l ::J'i1'i-l ~-/-r 7 ::J"J.,, 7-,+1" 7 ., + 1" 7 7 / 7" '" t" ;z 3 " ;; ~ 1" c t· ., r i.:: .. , r ::J;t.7'1- 7'! (Japan) ~-~ 1" t• ;t. ., r ice .. , r (except Japan) ~ - ~-\" t" ;t. ., r ice .. , r A /IJ / 7°C/ (Japan) :J" J.,, ~ lexceotJaoan) :J"J.,,~~-;z-.:--ijJ-f:IJ-~'</ i-·' r -t1'f";, ;z/1J ;,7 RAM;IJ- r· 3 '7 PS:Z /1J ;..- 7" ;z 7 1 r· ;z 1 ., + 3 ,,_, -t ., -i- ;..:z 7 1 r· :z 1 ., + ·1-.... : IJ -j: ., r A/ 1) / 7° ::J" J.,, RAM;IJ-r3'7 ::J"J.,,::J;t.77-t"·1 .r, / ;,.- r ''·'T'!-'I>/ A ;z 7 1 r x 1 ., + 3 '7 -t ., 'i ;..PS:z 1 ., + '/< c ~ - ~ 1" t: r i =- ., r '' ., T 'J - 'I / / B t * ., ;I]- 1: J.. r ., ,,_ (Japan) 7;,++1'71 7-.:1i.(exceot Jaoan) T/ ++ i '71 7-.:1i.;I]- r·17 , '., T ') - 'I ;..- ;, t" ;z t" ;z t" z: 1) -t I r ;z-.:--ij-(Japan) T/ + :J '7 ;I]/ + 1 '71 (except Japan) T/ + :J '7 ;I]/ + .1 '71 '71 7-';/r+1 '717-.:1i.(Japan! VCCl7"''" 3 .1'/'7/ ;j;:J" 7-.:1i.- 7-.:1i.7-.:1i.- 22 -----~: 25 44 38 -16- - PC-1280 [£] Main PWB unit(.;< 1 /£t.&i= NO. PARTS CODE I 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 QCNCW1306CCIB RC-CZD105ECZZ RC-CZ1047CCZZ RC-EZ335BECOJ RC-KZ1054CCZZ RC-ZZI006CCZZ RCRSZ1063CCZZ RH-OZIOO!ECNI RVR-Z2400QCZZ VCCCTPIHHIOIJ VCCCTPIHH151J VCKYTPIEF!04Z VCKYTPIHB82 IK VHDDAN202K/-l VHDDA204K//-l VHDDSS133//-l VHiD4364Gl5LN VHiLH5310X7-l VHiLZ92K38/-l VHiMN1280Q/-l VHiSC43536/-l VHiSC61860A38 VRS-TP2BD100J VRS-TP2BDI03J VRS-TP2BDI04J VRS-TP2BDI05J VRS-TP2BD203J VRS-TP2BD393G VRS-TP2BD472J VRS-TP2BD562G VRS-TP2BD563J VSDTA144EK/-l VS D TC I 4 4E K/- I VS2SC2412K/-l RC-K1El04HCZZ VRD-HT2EY104J 1-•;J r (Unit) 901 CPWBF!052ECOI ''J l) PRICE RANK NEW PART Ex Ja MARK RANK AK DY c Connector ( 11 oi n ) AC DD c Capacitor (luF) AB DB c Capacitor (0 033uF) AB DC c Caoacitor (6.3WV 3.3uF) AB DC c Capacitor (50WV O. luF) AB DB c Caoacitor (0.1 uF) a Crvstal (768KHz) AF OM B AD OF Diode OSR14S) AF ON B Variable resistor (20K(l) AA DA c Caoacitor (50WV IOOPF) AA DA N c Caoacitor (50WV l 50PF) AA DA c Capacitor (25WV O.!OuF) AA DA N c Caoacitor (50WV S20PF) AB DB B Diode (DAN202K) B AC DC Diode (DA204K) B AA DA Diode ross 133) BO GU B IC (D4364Gl5LN) B AW FR IC (LH5310X7) B AN EK IC (LZ92K3Sl IC (MN l 2S00) AE DH B B IC (SC43536) AX FU B AX FU IC (SC6IS60A3S) AA DA c Resistor (l/SW 100 ±5%) AA DA c Resistor (l/SW !OKO ±5%) AA DA c Resistor (I/SW IOOKO ±5%) AA DA c Resistor (I /SW I.OMO ± 5%) AA DA c Resistor <l/SW 20KO ±5%) AA DA c Resistor (I/SW 39KO ±2%) AA DA c Resistor (I/SW 4.7KO ±5%) AA DA c Resistor (I/SW 5.6KO ±2%) AA DA c Resistor (l/SW 56KO ±5%) B Transistor <DTA!44EKl AC DC B Transistor <DTC144EK) AC DC B Transistor (SC24 l 2K) AB DB AB DC c Capacitor(25WV 0.JµF) AA DA c Resistor (l/4W lOOKD +5%) BS NF N E PARTS CODE I LPLTPI007ECZZ TiNSJl!l8ECZZ TiNSE1122ECZZ TiNSG1123ECZZ SPAKC0276ECZZ SPAKC0279ECZZ TLSTSI015CCZZ SPAKA0278ECZZ PHOG-1001ECZZ 2 3 4 5 6 :.if.1:5':.i;,-f·:.--t:J/f"/-tf-- :.i;,-f·:.---t:.i:.--7:.---t:J/T/"t- 11) ;;(.)'Iv Y 1 ot- i: n i: :.i:.--7"·:.--tt:.i:.--7:.--t- j:IJ ::i:.---T·:.---tt:J/'}-°/ij"- Y1 ;tY1 ;t- r· f' Y1ot-r· IC IC IC IC IC IC T1 -f 1 -f 1 ::i "l ::i '7 ::i '7 T.{ ::J </ -f 1 ::i '7 -T1 ::i '7 -f 1 01 '7 -f 1 :.i '7 -f 1 01 '7 f 7/'/;;(.:5'r7/'/;;(.:5'f7:.--'/;;(.:5':J/7°/-t71 :J '7 ) 1 / "', Main PWB unit [JJ Packing material & Accessories(.ml~ NO. DESCRIPTION </ ::L-- ·1 f c 1t~J1) PRICE RANK NEW PART Ex Ja MARK RANK AC DD N D Temolate F X N D Instruction book AX N D Instruction book AX N D Instruction book ON N D Packing case AF N D Packing case DA D Service list AD OF N D Packinz cushion for set AA DA D Pr o t ec to r sheet N -17- DESCRIPTION -f/7'v-f (Japan) r ') 7 "/ fJ 1 -t '/ ) 1 3 (except Japan.Germany) r IJ 7 '/ 7J 1 -t '/ ) 1 3 (Germanv) r 1) 7'/fJ1-t'/)1 3 (Jaoanl """°/:7'7-;;(. (exceot Jaoan) ''""'/:7'7-;;(. (Jaoan) 't-1:' ;;(. '! ;;(. f -t '/ f 3 '7 , { ·1 "' / ::r :; ·1 :1'} '7 ::;>;t::i'J:,.--;;<, ;,. 3 / - PC-1280 SHARP COPYRIGHT © 1987 BY SHARP CORPORATION All rights reserved. Printed in Japan. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. SHARP CORPORATION Information Systems Group Quality & Reliability Control Center Yamatokoriyama, Nara 639-11, Japan 1987 March Printed in Japan ®