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q SERVICE MANUAL CODE : 00ZXEA20SUSME ELECTRONIC CASH REGISTER MODEL XE-A20S (U version) CONTENTS CHAPTER 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 CHAPTER 2. OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 CHAPTER 3. MASTER RESET AND PROGRAM RESET. . . . . . . . . 5 CHAPTER 4. HARDWARE DESCRIPTION . . . . . . . . . . . . . . . . . . . . 6 CHAPTER 5. TEST FUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 CHAPTER 8. CIRCUIT DIAGRAM AND PWB LAYOUT . . . . . . . . . 15 Parts marked with "!" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set. SHARP CORPORATION This document has been published to be used for after sales service only. The contents are subject to change without notice. LEAD-FREE SOLDER The PWB’s of this model employs lead-free solder. The “LF” marks indicated on the PWB’s and the Service Manual mean “Lead-Free” solder. The alphabet following the LF mark shows the kind of lead-free solder. Example: <Solder composition code of lead-free solder> Lead-Free 5mm Solder composition Solder composition code (Refer to the table at the right.) a Solder composition code Sn-Ag-Cu a Sn-Ag-Bi Sn-Ag-Bi-Cu b Sn-Zn-Bi z Sn-In-Ag-Bi i Sn-Cu-Ni n Sn-Ag-Sb s Bi-Sn-Ag-P Bi-Sn-Ag p (1) NOTE FOR THE USE OF LEAD-FREE SOLDER THREAD When repairing a lead-free solder PWB, use lead-free solder thread. Never use conventional lead solder thread, which may cause a breakdown or an accident. Since the melting point of lead-free solder thread is about 40°C higher than that of conventional lead solder thread, the use of the exclusive-use soldering iron is recommendable. (2) NOTE FOR SOLDERING WORK Since the melting point of lead-free solder is about 220°C, which is about 40°C higher than that of conventional lead solder, and its soldering capacity is inferior to conventional one, it is apt to keep the soldering iron in contact with the PWB for longer time. This may cause land separation or may exceed the heat-resistive temperature of components. Use enough care to separate the soldering iron from the PWB when completion of soldering is confirmed. Since lead-free solder includes a greater quantity of tin, the iron tip may corrode easily. Turn ON/OFF the soldering iron power frequently. If different-kind solder remains on the soldering iron tip, it is melted together with lead-free solder. To avoid this, clean the soldering iron tip after completion of soldering work. If the soldering iron tip is discolored black during soldering work, clean and file the tip with steel wool or a fine filer. CAUTIONS THERE IS A RISK OF EXPLOSION IF THE BATTERY IS REPLACED BY AN INCORRECT TYPE. PROPERLY DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS. XE-A20S LEAD-FREE SOLDER CHAPTER 1. SPECIFICATIONS 1. APPEARANCE Key names Rear view Front view KEY TOP Customer display (Pop-up type) DESCRIPTION 2 RA Received-on account key RCPT/PO Receipt print/Paid-out key Operator display Printer cover Paper feed key Receipt paper Keyboard Power cord Mode switch VOID Void key ESC Escape key CONV Conversion key %1, %2 Percent 1and 2 key RFND USB port Refund key - Drawer Discount key @/FOR Drawer lock Multiplication key • Decimal point key CL Printer Clear key 0-9,00 Take-up spool Numeric Keys PLU/SUB Paper roll cradle PLU/Subdepartment key DEPT# Print roller arm Paper positioning guides Print roller release rever Inner cover Department code entry key DEPT SHIFT Department shift key CLK# Clerk code entry key Dept1-32 Department keys TAX Tax 1 shift key Tax 2 SHIFT Tax 2 shift key AUTO 2. RATING XE-A20S Weight 16.3lb (7.4kg) Dimensions 13.0 (W) x 16.9 (D) x 11.0 (H) inches (330 (W) x 428 (D) x 280 (H) mm) AC 120V (m10%), 60Hz Power consumption Stand-by 7.7W, Operating 30W (max.) Working temperature 32°F to 104°F (0°C~40°C) Check key CH Charge key #/TM/SBTL Non-add code/Time display/Subtotal key CA/AT/NS Total/Amount tender/Non Sale key 1) LAYOUT 1) KEYBOARD LAYOUT • Rotary type Normal keyboard Key position Std/Max 53keys Key pitch 19 (W) x 19 (H) mm Key layout Fixed type REG OPX/Z OFF 2) KEY LIST VOID Keyboard layout RA %1 7 8 9 RCPT /PO 4 5 6 Ð %2 NUMBER VOID RFND DC SHIFT ESC BS SPACE 1 2 0 3 00 PLU /SUB 4 DEPT # F K 20 24 28 B 8 19 3 C D 7 E 12 H 6 I 11 J P 32 16 M 10 N 15 O R 30 14 25 9 Q 31 26 21 5 L CLK# 27 22 17 1 G 23 18 2 DEPT SHIFT A S 29 13 T MGR X1/Z1 Operator key (OP) X2/Z2 OP PGM CL Manager key (MA) MA OP MA Type ¥ Merchandise subtotal key 4. MODE SWITCH 3. KEYBOARD @/FOR Automatic sequence key CHK MDSE SBTL Power source CONV Tax key Tax 1 SHIFT TAX AUTO U X TAX1 SHIFT TAX2 SHIFT V Y The mode switch can be operated by inserting one of the two supplied mode keys - manager (MA) and operator (OP) keys. These keys can be inserted or removed only in the “REG” or “OFF” position. CHK CH W Z MDSE #/TM SBTL SBTL CA/AT/NS Note: The small characters on the bottom or lower right in each key indicates functions or characters which can be used for character entries for text programming. XE-A20S SPECIFICATIONS –1– The mode switch has these settings: OFF: PLU/SUB DEPT REPEAT OP X/Z: To take individual clerk X or Z reports, and to take flash reports. It can be used to toggle receipt state “ON” and “OFF” by pressing he [RCPT/PO] key. REG: For entering sales. PGM: To program various items. VOID: Enters into the void mode. This mode allows correction after finalizing a transaction. MGR: For manager’s entries. The manager can use this mode for an override entry. RCPT OFF The number of repeats is displayed, starting at “2” and incremental with each repeat. When you have registered ten times, the display will show “0.” (2 3 3 ..... 9 3 0 3 1 3 2 ... ) Receipt function status: The indicator “_” appears in the RCPT OFF position when the receipt function is in the OFF status. Time: Appears in the far-right six positions (hour-minute - ”A” or hour-minute - ”P”) in the OP X/Z, REG, or MGR mode. “A” is displayed in the morning (AM), and “P” in the afternoon (PM). In the REG or MGR mode, press the [#/TM/SBTL] key to display the time. 5. DISPLAY 1) OPERATOR DISPLAY LED 1 line Machine state symbols Number of positions: 10 digits Color of display: Yellow / Green Character form: 7 segment Character size: Numeric 14 (H) x 8 (W) mm Layout: : Appears during programming. : Appears when an error is detected. : Appears when the subtotal is displayed or when the amount tendered is smaller than the sales amount. : Appears when the [CONV] key is pressed to calculate a subtotal in foreign currency. : Appears when a transaction is finalized by pressing the [CA/AT/ NS], [CHK] or [CH] key. : Appears when the change due amount is displayed. PLU/SUB DEPT REPEAT RCPT OFF : May appear in the far-left three positions at the timing of key entry when the electronic journal (EJ) memory is full. (Depending on programming.) DC SHIFT NUMBER : Appears when the voltage of the installed batteries is under the required level. You must replace with new ones within two days to avoid loss of memory. : Appears when the batteries are not installed, or the installed batteries are dead. You must replace with new ones immediately. : May appear right below the eighth and ninth places at the timing of finalization of a transaction when the electronic journal (EJ) memory is nearly full. Also appears right below the tenth place when power save mode is effective. : Appears when the print roller arm is not locked. 2) CUSTOMER DISPLAY Display device: LED Number of line: 1 line DC SHIFT NUMBER Number of repeats for repetitive registrations: X2/Z2: To take the X/Z report for periodic (weekly or monthly) consolidation. Number of line: Clerk code Amount: Appears in the far-right eight (max.) positions. When the amount is negative, the minus symbol “-” appears before the amount. X1/Z1: To take the X/Z report for various daily totals. Display device: Customer display (Pop-up type) Operator display This mode locks all register operations. (AC power turns off.) No change occurs to register data. Number of positions: 7 digits Color of display: Yellow / Green Style: Pop up type Character form: 7 segment Character size: 14mm (H) x 8mm (W) Layout: : Appears when the paper is not installed or paper is out. XE-A20S SPECIFICATIONS –2– 6. PRINTER Segment Display position Description Amount 1-8 Minus sign 2-10 -: Floating Error 8-10 Exx:xx = error code PGM Mode 10 1) Printer • Part number : M-T53II • No. of station : 1 (Receipt or journal) • Validation : No. F: Light up when a registration is f inaliz ed by de pres sing CA S H, CHECK, CHARGE key • Printing system : Line thermal • No. of dot : 288 dots : Horizontal 0.167mm Vertical 0.167mm P CASH, CHECK, CHARGE 10 SUB TOTAL/ short tender 10 o • Dot pitch Change 10 C: Light up whenever the change due amount appears in the display. • Font : 10 dots (W) x 24 dots (H) • Printing capacity : max. 24 characters/Line • Character size : 1.67mm (W) x 4.00mm (H) at 10 x 24 dots • Print pitch : Column distance 2.0mm Row distance 5.21mm Currency Conversion 10 c: Light up whenever the foreign amount appears in the display. Department 9-10 No zero-suppressed PLU 7-10 No zero-suppressed Repeat 8 Endless count, starting from 2. Receipt OFF 9 _ DC _: Double size character entry status SHIFT _: Shift character entry status NUMBER _: Number character entry status • Print speed : Approximate 60mm/s (Approximate 12 l/s) • Paper feed speed : Approximate 60mm/s (Approximate 12 l/s) • (Manual feed) : Approximate 60mm/s (Approximate 12 l/s) • Reliability : Mechanism LIFE 6 million lines used to high quality thermal paper Clerk No. 2, 3 -xx-: clerk number EJ FULL 8-10 E-E: Light up when EJ memory is FULL at the timing of key entry (by PGM selection). • Paper end sensor : Set up • Cutter : Manual Cutter • Near end sensor : No Low Battery 10 L: No Battery 10 L: 2) Paper • Paper roll dimension: 2.25 m 0.02 inch 57.5 m 0.5mm in width Decimal Point Display position Decimal point 7-1 TAB 4-1 EJ near full 8, 9 Max. 3.15 inch Max. 80mm in diameter Description • Paper quality: High-quality thermal paper paper thickness: (by PGM selection) 0.06 to 0.08mm Nihon seisi thermal paper TF50KS-E2C KANZAN thermal paper: KF50 KSP thermal paper: P350 3) Logo stamp • No 4) Printing area Number of thermal head heater elements 288 dots (4.75) 48 (288 dots) (4.75) print area (max.24 characters) 0.167 57.5±0.5 (Paper dimension) XE-A20S SPECIFICATIONS –3– (units : mm) 7. DRAWER 8. BATTERY [OUTLINE] 1) MEMORY BACK UP BATTERY • Standard equipment: Yes (1) For memory back up, (3) dry AA batteries are needed. • Max. number of additional drawers: 0 1. Memory holding time: • The drawer consists of: Approx. 1 year after NEW dry batteries are installed. 1) Drawer box (outer case) and drawer 2. Battery replacement method: 2) Money case When the low battery symbol “L” lights up, replace the batteries (3 AA) by the following method; 3) Coin case 1) Power on the ECR. 4) Lock (attached to the drawer) 2) Mode switch turn to “REG” mode. [SPECIFICATION] 3) Remove the OLD dry batteries (3 pieces). 4) Insert the NEW dry batteries (3 pieces). 1) DRAWER BOX AND DRAWER 5) Confirm the low battery symbol “L” is off. • Model name of the drawer box : SK-415 • Size : 330 (W) x 418 (D) x 98 (H) mm 13 (W) x 16.5 (D) x 3.9 (H) inch 2) LOW BATTERY • Material : Metal • Bell :- Low battery indication will appear on the left side of display when the battery voltage is low. • Release lever : Standard equipment: locate on the bottom • Drawer open sensor :- • Separation from the main unit :- CASE 1: When machine is sitting idle or after finalization of a transaction. The machine will always indicate the low battery condition. CASE 2: During any numeric or item key entry. Battery condition will not appear. Except when the power is restored after a power failure, the low battery condition will appear on the display only when the battery is low and the indicator will disapear after any key entry. 2) MONEY CASE Separation from the drawer Disallowed Separation of the bill compartments from the coin compartments Allowed [Display sample] “ - Bill separator Number of compartments 0.00”: Battery is OK. “L 0.00”: Low battery (You have to change the batteries.) 4B/5C “L 0.00”: No battery (You have to change the batteries immediately.) After finalization Layout: “F 12.34”: Battery is OK. “L 12.34”: Low battery. (“L” indicate instead of “F”.) “L 12.34”: No battery. (“L” indicate instead of “F”.) Note: “NO BATTERY”: When “NO BATTERY” is displayed, the master reset is executed upon "POWER ON" after "POWER OFF" or power failure. 4B/5C 3) LOCK (LOCK KEY : LKGIM7331BHZZ) Location of the lock: Front Method of locking and unlocking: To lock, insert the drawer lock key into the lock and turn it 90 degrees counter clockwise. To unlock, insert the drawer lock key and turn it 90 degrees clockwise. ck unlo Lo SK1-1 SK1-1 Key No: ck XE-A20S SPECIFICATIONS –4– CHAPTER 2. OPTIONS 1. OPTIONS (NONE) 2. SERVICE TOOL NO 1 NAME PRICE RANK PARTS CODE USB cable DESCRIPTION For connection between ECR and PC 3. SUPPLIES NO 1 PARTS CODE PRICE RANK TPAPR6656RC05 BA NAME Thermal roll paper DESCRIPTION 5 ROLLS/PACK CHAPTER 3. MASTER RESET AND PROGRAM RESET 1. MASTER RESETTING 2. PROGRAM RESETTING (INITIALIZATION) Master resetting clears the entire memory and resumes default values. Master resetting can be accomplished by using the following procedure: This resetting resumes the initial program without clearing memory. Procedure: 1) Plug in the AC cord to the wall outlet. This resetting can be operated at below sequence in PGM mode. 2) Set the mode switch to REG position. Procedure: 1) Unplug the AC cord from the wall outlet. 3) Remove the 3 AA batteries. 2) Wait over 1 muinite for discharging. 4) Unplug the AC cord from the wall outlet. 3) Set the mode switch to the PGM position. 5) Wait over 1 minute for discharging. 4) While holding down the FEED key, plugin the AC cord to the wall outlet. 6) Plug in the AC cord to the wall outlet. 7) Install the 3 AA batteries. Note: In case a power failure occurs when the machine has no batteries installed, the master reset operation is automatically performed after the power has been restored. Note: The master reset can also be accomplished in the following case. In case a power failure occurs when the machine has no batteries installed, the master reset operation is automatically performed after the power has been restored. When power failure occurs with no batteries installed in the the machine, all memory is lost and the machine does not work properly after power is restored, thus requiring the master reset operation.) XE-A20S OPTIONS –5– CHAPTER 4. HARDWARE DESCRIPTION 1. HARDWARE BLOCK DIAGRAM POWER SUPPLY STANDARD DRAWER. CPU Data bus DRIVER , SENSOR ROM : 256K Byte RAM : 20K Byte RAM Address bus 128K Byte POPUP Seg. DRIVER PRINTER M-T53II FRONT LED 4 to 16 DECORDER Dig. DRIVER PAPER TAKE UP MOTOR KEY SCAN SIGNAL KEYBOARD MODE SWITCH KEY RETURN SIGNAL M66291GP CPU : RENESAS 30624 (MASK) (ROM 256KB RAM 20KB) EXTERNAL MEMORY : RAM 128 KB PRINTER : EPSON M-T53II 1SHEET USB CONTROLLER : RENESAS M66291FP XE-A20S HARDWARE DESCRIPTION –6– USB TYPE B 2) Pin description PQ1CG2032 TRANSFORMER V0 24V M16C/62 PORT Drawer MEMORY SPACE : MEMORY PROCESSOR MODE (NORMAL MODE) PROCESSOR MODE : MEMORY PROCESSOR MODE It is used by (SEPARATE BUS 8bit Width) /POFF detect point PQ1CG2032 VLED 5.7V PORT PIN I/O Pin No. name VCC 5V P00 88 I/O D0 D0 OUT L VDD 5V P01 87 I/O D1 D1 OUT L P02 86 I/O D2 D2 OUT L P03 85 I/O D3 D3 OUT L P04 84 I/O D4 D4 OUT L P05 83 I/O D5 D5 OUT L P06 82 I/O D6 D6 OUT L P07 81 I/O D7 D7 P10 80 O P10 KST0 L IN KEY DISPLAY (4 to 16) P11 79 O P11 KST1 L IN KEY DISPLAY (4 to 16) P12 78 O P12 KST2 L IN KEY DISPLAY (4 to 16) P13 77 O P13 KST3 L IN KEY DISPLAY (4 to 16) P14 76 O P14 IN1 L OUT L PAPER FEED MOTOR P15 75 O P15 IN2 L OUT L PAPER FEED MOTOR P16 74 O P16 ENA1 L OUT L PAPER FEED MOTOR P17 73 O P17 ENA2 L OUT L PAPER FEED MOTOR P20 72 O A0 A0 OUT L P21 71 O A1 A1 OUT L P22 70 O A2 A2 OUT L P23 69 O A3 A3 OUT L P24 68 O A4 A4 OUT L P25 67 O A5 A5 OUT L P26 66 O A6 A6 OUT L P27 65 O A7 A7 OUT L P30 63 O A8 A8 OUT L P31 61 O A9 A9 OUT L P32 60 O A10 A10 OUT L P33 59 O A11 A11 OUT L P34 58 O A12 A12 OUT L P35 57 O A13 A13 OUT L P36 56 O A14 A14 OUT L P37 55 O A15 A15 OUT L P40 54 O A16 A16 OUT L P41 53 O A17 A17 OUT L P42 52 O A18 A18 OUT L P43 51 O A19 A19 P44 50 O /CS0 (NU) P45 49 O /CS1 /CS1 Battery ON/OFF Control (MODE SW) LM2574 + Tr. VH, VP (8V) PRINTER HEAD, MOTOR PAPER TAKEUP MOTOR ON/OFF Control (MODE SW, /POFF, CPU P105) 2. DESCRIPTION OF MAIN LSI’S 2-1. CPU (M30624MGA) Signal name Initial OFF value MODE OUT L SIN4 AVCC VREF AN0 AVSS AN1 AN2 AN3 AN4 AN5 AN6 AN7 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 P97 VDD VDD TH GND P101 Vref P103 P104 P105 LATCH DTS D0 D1 D2 D3 D4 D5 D6 D7 P10 P11 P12 P13 PH1 1) Pin configuration SOUT4 CLK4 TB4IN TB3IN SOUT3 SIN3 CLK3 BYTE CNVss XCIN XCOUT /RESET XOUT Vss XIN Vcc NMI INT2 INT1 INT0 TA4IN/U TA4OUT/U TB3IN TBEOUT TA2INW M30624MGA D13 D14 D15 A0 A1 A2 A3 A4 A5 A6 A7 VSS A8 VCC A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 50 58 57 56 55 54 53 52 51 PH2 PH3 PH4 A0 A1 A2 A3 A4 A5 A6 A7 GND A8 VDD A9 A10 A11 A12 A13 A14 A15 A16 A17 NC NC 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 TA2OUTW TA1IN/V TA1OUT/V TB5IN TB5OUT TXD1 RXD1 CLK1 CLKS1 TXD0 RXD0 CLK0 /RTS0 /RDY ALE /HOLD /HLDA CBCLK /RD /BHE /WR /CS3 /CS2 /CS1 /CS0 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 P74 P73 CLK P71 DAT P67 P66 /FRES P64 FSD FRD FSCK DR1 /RDY /HOLD VCC NC NC /RD NC /WR /CS3 /RAS1 BUSY /ROS1 P96 P95 P94 P93 P92 P91 P90 VDD GND XCIN XCOUT /RESET XOUT GND XIN VDD VDD CTCRL /FRDY P-OFF MOTOR BUZ1 P77 P76 P75 XE-A20S OUT L L OUT L OUT L USB CONTROLLER P46 48 O /CS2 /CS2 OUT L SRAM P47 47 O /CS3 /CS3 OUT L SEGMENT LATCH P50 46 O /WR /WR OUT L P51 45 O /BHE (NU) OUT L P52 44 O /RD /RD OUT L P53 43 O BCLK BCLK OUT L P54 42 O /HLDA (NU) OUT L HARDWARE DESCRIPTION –7– Function PORT PIN Pin I/O No. name Signal name P55 41 I /HOLD /EPM IN P56 40 O ALE (NU) OUT L P57 39 I /RDY /RDY IN P60 38 O P60 DR1 L OUT L DRAWER 1 DRIVE SIGNAL P61 37 O P61 (NU) L OUT L P62 36 O P62 (NU) L OUT L Initial OFF value MODE <Power supply/CONTROL pins> Function PORT P63 35 O P63 /USBRST L OUT L USB CONTROLLER RESET P64 34 O P64 /BUSY L OUT L BOOT BUSY P65 33 I P65 SCLK IN P66 32 I P66 RXD IN P67 31 O P67 TXD L OUT L BOOT TXD P70 30 O TXD2 DAT H OUT L PRINTER DATA OUT P71 23 O P71 (NU) L OUT L P72 28 O CLK2 CLK L OUT L PRINTER CLOCK P73 27 O P73 DR2 L OUT L DRAWER 2 DRIVE SIGNAL P74 26 O P74 (NU) L OUT L P75 25 O P75 (NU) L OUT L P76 24 O P76 (NU) L OUT L P77 23 O P77 /EPM CTRL H OUT L Connected to VDD Vss Connected to GND AVss 96 AVss Connected to GND Vref 98 Vref Connected to VDD AVcc 99 AVcc Connected to VDD 1) CPU XIN XOUT USB DMA REQUEST /INTUSB IN (NU) IN P86 11 O XCOUT P87 10 I P90 7 P91 P92 13 CPU XCOUT USB INTERRUPT R62 330 11 X2 32.768KHz XCOUT 32.768kHz XCIN XCIN 32.768kHz I P90 P90 IN KEY IN 6 I P91 P91 IN KEY IN 5 I P92 P92 IN KEY IN P93 4 I P93 P93 IN KEY IN P94 3 I P94 P94 IN KEY IN P95 2 I P95 P95 IN KEY IN P96 1 I P96 P96 IN KEY IN P97 100 I P97 P97 IN KEY IN P100 97 I AN0 P100 IN HEAD TEMPERATURE MONITOR P101 95 I AN1 P101 IN HEAD VOLTAGE MONITOR P102 94 O P102 /STB2 P103 93 I AN3 VBAT P104 92 O P104 P105 91 O P106 90 P107 89 XCIN 10 C41 18P H OUT L PRINTER/STB2 (NU) L OUT L P105 VPON L OUT L PRINTER HEAD POWER O P106 /LAT H OUT L PRINTER DATA LATCH O P107 /STB1 H OUT L PRINTER /STB1 IN 15 12MHz IN /NMI I 3. CLOCK GENERATOR POWER INTERRUPT /INT2 Connected to GND 64 IN I Vss Vss OUT L BUZZER I OPEN 14 BOOT RXD OUT L PAPER TAKE UP MOTOR 17 Xout Vss Connected to VDD L 18 /RESET O Vcc L P85 I 13 62 MOTOR P84 12 Xout Vcc BUZZER /INT1 /DREQUSB /RESET BOOT SCLK P80 I Connected to VDD NORMAL: L Launch BOOT: H Connected to Spectram diffusion IC P81 19 BYTE CNVss Xin O P83 I I Vcc O POFF 8 9 16 22 /INT0 BYTE CNVss 15 21 I Function Xin P81 20 Signal name I/O Vcc P80 P82 PIN No. C42 27P Two oscillators are connected to the CPU. The basic clock X2 is supplied from a 12MHz oscillator. If the CPU was not operating properly, the signal does not appear on this line in most cases. The sub-clock X1 generates 32.768KHz which is primarily used to update the internal RTC (real time clock). During the standby mode, it keeps oscillating to update the clock and monitoring the power recovery. BATTERY VOLTAGE 4. RESET CIRCUIT VDD MODE SWITCH SRV' position VDD CPU R IC S-80928ANMP R 12 R C /RESET C (1) When the mode switch is placed in the “SRV” position, the reset signal is sent to the CPU to reset the hardware. (2) When VDD t 2.8V, a reset signal is sent from the reset IC. (S-80928ANMP) XE-A20S HARDWARE DESCRIPTION –8– 5. P-OFF CIRCUIT 7. PRINTER CONTROL CIRCUIT I/O VC C LED V 1) Paper feed motor circuit R92 2.7K R93 9.1KG R95 2.7K VP R19 C14 R17 0 1uF/50V 8 3 8 5 1 7 2 R103 3.9K /POF F 6 IC12A BA10393 VCC CPU 56K IC12B BA10393 4 4 P14 C75 0.1uF P15 P16 10uF/50V A /A B /B IC7 P17 ZD3 MTZJ5.1B MOTOR LB1838M P-OFF The P-OFF signal detects two signals by two comparators and sent to the CPU. Stepping motor control V0 (24V) signal: If the power voltage V0 (24V) falls bellow the specified level, the P-OFF signal is driver to LOW by the comparator IC12A. The 2-phase, bi-polar stepping motor is driven at a constant voltage by LB1838M (made by SANYO). VLED signal: 1 step: 0.087mm If the LED/Logic power voltage VLED falls below the specified level, the P-OFF signal is driven to LOW by the comparator IC12B. 1 dot: 2 steps CPU port 6. MEMORY CIRCUIT No. CPU port Signal used 1) Address map 76 P14 IN1 00000h 00400h CPU internal RAM 20kbytes 05400h 75 P15 IN2 74 P16 ENA1 73 P17 ENA2 Drive step Driver IC input (CPU output) 06000h Segment latch address /CS3 area 06000h - 07FFFh External S-RAM : 128kbytes (128kbytes area) /CS2 area 08000h - 27FFFh /CS1 area 28000h - 3FFFFh 08000h A B /A /B ENA2 (OUT1) (OUT3) (OUT2) (OUT4) IN1 IN2 ENA1 1 L L H H H H L L 2 H L H H L H H L 3 H H H H L L H H 4 L H H H H L L H STEP 28000h Motor drive signal 40000h 2) Print circuit Thermal head configuration Figure on next page shows the circuit of the thermal head consists of heating elements and head drivers which drives and controls the heating elements. C0000h CPU internal ROM 256kbytes The serial print data input through the DATA IN (DAT) is transferred to the shift register synchronizing with the CLOCK (CLK) and stored in the latch register by the LATCH (LAT) signal. FFFFFh 2) RAM control The head conduction signals (print commands 1 ~ 6) turn the gate on to conduct the heating element corresponding to the print data. Power supply circuit or Dry battery CS2 A0-A16 A0-A16 A0-A16 VCC VDD 0.1M D0-7 VDD D0-7 10K I/O0-7 /CS2 /CS2 /CS1 150pF CPU 10K VCC /RD /RD 11 S-RAM 128K byte IC /OE 10K VCC /WR /WR /WE XE-A20S HARDWARE DESCRIPTION –9– 9. DRAWER DRIVE CIRCUIT Thermal head block diagram 5,6,18,19 VP 9,10,14,15 VO GND F6 FB1 VDR C66673 C59 10uF/50V C58 0.1uF 1.8K D1A1 1N4002 CN3 3 2 1 5045-0 FB2 Q4 B E 1 DR1 13 R77 + STB1 C 11 C T500mA/ 250V C Dot #1 A Dot #288 C66673 2SD2212 D6 1SS133 A STB2 7 Latch register LAT 16 Shift register CLK 17 When the DR1 signal from the CPU is HIGH, Q4 is turned on to operate the solenoid. DAT 12 VCC Connector 10. BUZZER DRIVE CIRCUIT Thermal head strobe terminals STB No. Dot No. Number of dots 1 1 ~ 144 144 2 145 ~ 288 144 1.5k 8. PAPER TAKE UP MOTOR DRIVE CIRCUIT CPU R58 TA4OUT/U VH CN2 TA4IN/U (21pin) BZ M C51 CPU MOTOR BZ 22pin MOTOR R76 When the pulse signal (about 4KHz) is generated from the CPU, the buzzer sounds. Q1 1K 2SD2212 When the MOTOR signal from the CPU is HIGH, Q1 is turned on to operate the motor. 11. KEYBOARD CIRCUIT P10-13 P10-13 HC138 /S0-9 /S0-7 /S0-9 P10-13 HC138 /S0-7 /S1 /S3 /S4 Paper feed key Head up sensor Paper end sensor /S8-9 Key Matrix Mode Switch /S0 - 9 /S9 RS232 /CI signal P92-97 P92-97 P90 CPU P91 P91 D0-7 /CS3 D0-7 G1',G2', G3'G4',G5', G6',G7 a,b,c,d,e,f,g,dp 74HC374 /CS3 Front display A',B',C',D',E',F',G',DP' Four P10-13 signals from the CPU are converted into 16 strobe signals by two 74HC138 for use in various functions. XE-A20S HARDWARE DESCRIPTION – 10 – Pop-up display 12. USB I/F 1) Keyboard Scan signal: 10 /S0-9 signals The XE-A20S is equipped with 1 USB port (slave) as a standard provision. By use of the USB general-purpose ASSP device M66291, it sends and receives USB data. The M66291 is mapped to the /CS1 space (28000H~3FFFFFH). The CPU and the M66291 are connected as shown in the figure below. Return signal: 6 P92-97 signals The keys are read by the key matrix following the above signals. 2) Mode switch Scan signal: M16C/62 8 /S0-7 signals A0 A1~A6 The positions are read by the above signals. Mode switch position /S0 /S1 SRV /S2 PGM (OFF) /S3 TIME /S4 /S5 REG /S6 D0~D7 /S7 MGR X1/Z1 X2/Z2 7 8 3.3V CoreVcc D15/AD0 AD1~AD6 Vbus TrON 1.5kΩ D0~D7 CS1 RD WRL WRH INT2 CS RD LWR HWR/BYTE INT1 Dreq0 3) Paper feed key Scan signal: IOVcc Vcc Return signal: 1 P90 signal Scan signal M66291 5V D+ 1 3 Vbus D+ 27Ω 2 D27Ω 4 INT0 DGND 1.0{F Xin Xout USB Connector 1 /S1 signal Return signal: 1 P91 signal 24MHz The paper feed key is read by the above signals. <CPU PORT> 4) Head up sensor Scan signal: 1 /S3 signal Return signal: 1 P91 signal No. CPU PORT SIGNAL 19 P83 (INT1) /DREQUSE 18 P84 (INT2) /INTUSB The Head up sensor state is read by the above signals. Head up sensor Head up detected Head up not detected Low High P91 5) Paper end sensor Scan signal: 1 /S4 signal Return signal: 1 P91 signal The paper end sensor state is read by the above signals. Receipt near end sensor End detected End not detected P91 Low High 6) Display Scan signal: 10 /S0-9 signals The above 10 scan signals are used as the following digit signals. Digit signal: Scan signal /S0 /S1 /S2 /S3 /S4 /S5 /S6 /S7 /S8 /S9 Digit signal: G1’ Front G2’ G3’ G4’ G5’ G6’ G7’ G8’ G9’ G10 ’ Digit signal: G1’ Pop-up G2’ G3’ G4’ G5’ G6’ G7’ Segment signal : Segment signals: a, b, c, d, e, f, g, and DP are output by the IC:74HC374, using the data bus signal:D0-7 from the CPU as an input signal and the chip select signal:/CS3 as a latch signal. XE-A20S HARDWARE DESCRIPTION – 11 – Application USB DMA CHANNEL 0 DMA Request signal USB Interrupt 0 Request signal CHAPTER 5. TEST FUNCTION 1. TEST ITEMS 2) KEY CODE 1 Key operation The test items are as follows: NO. Code 1 100 Display buzzer test 2 101 Key code 3 102 Printer test 4 104 Keyboard test 101 Description 5 105 mode switch test 6 106 Printer sensor test 7 107 Clock display test 8 110 Drawer 1 open & sensor test 9 120 External RAM test 10 121 CPU internal RAM test 11 140 CPU internal ROM test 12 160 AD conversion port test 13 520 USB TEST 14 550 Sleep mode test RCPT/PO 2 Test procedure Display KEY CODE 3 Check that: KEY code: Every time a key is pressed, the code of that key is displayed as a decimal number. When a key is pressed twice or pressed in an incorrect manner, --will be displayed. 4 End of testing You can exit the test mode by turning the mode switch to a position other than the SRV mode. The printer prints as follows: 101 * Starting DIAG. 3) PRINTER TEST Mode switch 1 Key operation : PGM Key operation : Above code + "CH" key 102 2 Test procedure 2. DESCRIPTION OF EACH DIAGNOSTIC PROGRAM Display 1) DISPLAY BUZZER TEST 1 2 3 4 5 6 7 8 9 0 ZZZZZZ ZZZZZZ ZZZZZZ 1 Key operation 100 RCPT/PO ----------------ZZZZZ ----------------ZZZZZ ----------------ZZZZZ RCPT/PO 3 lines of 24 Z's are printed. 2 Test procedure Display at operator side Display at front side 1.2.3.4.5.6.7.8.9.0. 4.5.6.7.8.9.0. The decimal point will shift in steps of 1 digit from the lower digit to the upper (every 200 m sec). 3 Check that: The print is free from contamination, blur, and uneven density. After that, all segments turn on (about 1 sec) Display at operator side Display at front side 4 End of testing 8.8.8.8.8.8.8.8.8.8. 8.8.8.8.8.8.8. The test will end automatically. This mode is repeated. At the same time, the buzzer sounds continuously. 4) KEYBOARD TEST 1 Key operation 3 Check that: 104 RCPT/PO A) Each position is correctly displayed. 2 Test procedure B) The brightness of each number is uniform. The keyboard is checked using the check sum data of the key code. C) The buzzer sound is normal. 4 End of testing Display You can exit the test mode by pressing any key. The following is printed. 1 0 4 KEY CODE 3 Check: 100 A) The content of completion print XE-A20S TEST FUNCTION – 12 – 4 End of testing 3 Check that: When the test ends normally When an error occurs 104 E- ~ - 104 “-” blinks and the clock counts up. 4 End of testing Note: Calculation of key check sum data The hard code (hexadecimal number) at the position (excluding feed key) where there is input data, the hard code is added. However, the end key (CA/AT/NS) is not added. This data to which hard codes have been added is converted into a decimal number value, which will become the check sum data that will be entered when the Diag is started. When any key is pressed, the date and time are printed and the test mode will terminated. Display 1 0 7 year month day 1 Key operation 1 Key operation 110 RCPT/PO RCPT/PO 2 Test procedure 2 Test procedure Display hour min sec 8) DRAWER 1 OPEN AND SENSOR TEST 5) MODE SWITCH TEST 105 XXXXXX - XXXXXX 1 0 5 Display X 1 1 0 X X: O = DRAWER OPEN C = DRAWER CLOSED MODE: _PGM_VOID_OFF_OP X/Z_REG_MGR_X1/Z1_X2/Z2____PGM x : 1 2 9 3 4 5 6 7 1 3 Check that: The above x must be read in the correct order. (If the contact is open, 9 will be displayed.) A) The drawer opens normally. B) The sensor correctly indicates the status of the drawer 1. 3 Check: *On the XE-A202, “C” (CLOSED) is always displayed. The display during testing and the content of the completion print. 4 End of testing 4 End of testing When the test ends normally: When an error occurs: You can exit the test mode by pressing any key. The printer prints the following. 105 E- ~ - 105 110 6) PRINTER SENSOR TEST 9) EXTERNAL RAM TEST 1 Key operation 106 1 Key operation RCPT/PO 120 2 Test procedure 2 Test procedure Check the status of paper end sensor and head up sensor. 7-segment display: 1 0 6 The standard 128 Kbyte RAM is checked. The contents of the memory are lost after this test. RAM(08000H ~ 27FFFH area) is tested in the following procedure: X Y 3 Check the following: X:1 - Paper present O - Out of paper a) Data in the test area is stored. Y:1 - Head DOWN O - Head UP b) Write “00H” 4 End of testing c) Read and compare “00H” and then write”55H” d) Read and compare “55H” and then write”AAH” You can exit the test mode by pressing any key and the printer prints the following: e) Read and compare “AAH” 106 f) Restore stored data. If an error occurs at a step, the error is printed. If an error does not occur, the following addresses are checked. 7) CLOCK TEST 1 Key operation 107 RCPT/PO Addresses to be checked: 10000H , 10001H , 10002H , 10004H , 10008H 10010H , 10020H , 10040H , 10080H , 10100H , 10200H , 10400H , 10800H , 11000H , 12000H , 14000H , 18000H , 20000H RCPT/PO 2 Test procedure Displayed digit: 8 7 6 5 4 3 2 1 7-segment display: Display hour min sec 1 2 0 3 Check: Blinks at an interval of 0.5 sec. A) The completion print. XE-A20S TEST FUNCTION – 13 – 4 End of testing 12) AD conversion port The program ends after printing. 1 Key operation When the test ends normally. When the test ends abnormally. Ex- ~ - 120 120 ***** x = 1: Data error x = 2: Address error 160 RCPT/PO 2 Test procedure The test program displays the voltage of each AD port. 1. Head temperature When an error occurs, the printer outputs the error message and then the address where the error has occurred in the area ****. 2. Head voltage 3. Battery voltage 10) CPU internal RAM test RCPT/PO 160 2 Test procedure The test program checks internal RAM of the CPU. The contents of the memory are lost after this test. RAM (00400H - 053FFH area) is tested in the following procedure. 13) Communication test 1 Key operation 520 a) Data in the test area is stored. b) Write “00H” CH Note: USB service tool that should be used. c) Read and compare “00H” and then write “55H” 2 Test procedure The device address assigned by USB REVISION/VENDOR/ PRODUCT ID and the host is printed. d) Read and compare “55H” and then read “AAH” e) Read and compare “AAH” f) Stored data is restored. 3 Check: X X X = Device address If an error occurs at a step, the error is printed. If an error does not occur, the following addresses are checked. Addresses to be checked: Display 01000H , 01001H , 01002H , 01004H , 01008H 01010H , 01020H , 01040H , 01080H , 01100H , 01200H , 01400H , 01800H , 02000H , 04000H Display 520 Ver. XXXX USB Rev. 1 2 1 3 Check: VENDOR ID 04DD PRODUCT ID 90B5 DEVICE ADDRESS XXX The completion print. The test program ends after printing. When the test ends normally. When the test ends abnormally. Ex- ~ - 121 121 14) Sleep mode test ***** x = 1: Data error x = 2: Address error 1 Key operation 550 If an error occurs, the printer outputs the error message and then the address where the error has occurred in the area ****. 11) CPU internal ROM test 1 Key operation 3 Check that: A) The display goes off (excluding Decimal point) RCPT/PO B) The system turns active when any key is pressed. The test program checks that the checksum of the CPU internal flash ROM (C0000H - FFFFFH) is correct. The lower two digits of the checksum should be 10H.(pending) 4 End of testing The test program will automatically be terminated and the printer prints the following. 1 4 0 550 3 Check: The completion print. 4 End of testing The test will automatically be terminated and the printer prints as follows: When the test ends normally. ROM When the test ends abnormally. E- ~ ROM RCPT/PO 2 Test procedure The test program checks the system in SLEEP MODE (The display goes off and the Decimal point comes on) and then waits for any status change (KEY input). 2 Test procedure Display 1 Connect to host : 1~127 Unconnection : 0 4 End of testing After completion of printing, the test is terminated automatically. 4 End of testing. 140 XXX XXX XXXX 3 End of testing You can exit the test mode by pressing any key. The printer prints the follwing. 1 Key operation 121 1 6 0 1 1 6 0 2 1 6 0 3 140 ******** (CPU CODE) ******** (Version) 140 ******** (CPU CODE) ******** (Version) XE-A20S TEST FUNCTION – 14 – A ENA1 ENA2 IN1 IN2 KST3 KST2 KST1 KST0 2 X1 8 1 3 CST12.0MTW 2 2 2 2 2 2 2 2 CPU D7 D6 D5 D4 D3 D2 D1 D0 2 330pF C27 10K R32 10K R28 C28 10K R33 R64 3.3K /RESET 1 2 3 4 C10 FS781 XIN XOUT S1 LF C31 10K R36 VDD S0 FSOUT VSS 7 8 7 6 5 VDD C38 3.3K R56 C30 10K 100pF 820 R57 C29 10K R35 C12 10K R3 C13 10K R4 C14 VBAT /STB2 3 2 NC 33 R65 0.1uF C44 C18 10K R9 C37 100K R54 VCC C49 91pF 10uF/10V,OS C19 10K R10 100 100 100 100 100 100 100 100 VDD VDD 1000pF C45 + P100 P97 2 2 P101 R42 R44 R45 R46 R47 R48 R49 R50 2 C39 2200pF 4 5 C17 10K R8 33pF*8(C14-C21) C16 10K R7 C34 4.7UF/16V + CD S-80928ANMP SII IC4 1 OUT 2 VDD 3 VSS VCC /STB1 /LAT VPON 10K 10K 2 2 3 R38 R37 VCC C15 10K R6 VCC 10K R5 100pF*4(C10-C13) C11 10K 10K R34 IC5 100pF*8(C24-C31) C26 10K R31 10K R27 C25 10K C48 C24 10K R29 R30 10K 10K VCC R26 R25 A7 A6 A5 A4 A3 A2 A1 A0 R2 R1 2 2 2 2 2 2 2 C21 10K R12 6 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 CNVss D7 D6 D5 D4 D3 D2 D1 D0 AN7 AN6 AN5 AN4 AN3 AN2 AN1 AVSS AN0 VREF AVCC SIN4 P96 P95 P94 P93 P92 P91 P90 IC2 M30624 C20 10K R11 18pF C41 R60 47K R69 10K VCC 32.768KHz 27pF C42 R62 330 X2 R68 3.3k 5 UDZ4.3B D3 2 3 CST12.0MTW X3 R61 0 3 1. CIRCUIT DIAGRAM 1 B 5 2 C 6 C A - + 8 D 7 10K R13 VCC 10K C2 10K C1 IC6A BA10393 1 /DREQUSB /INTUSB VO CS0 CS1 CS2 CS3 WR BHE RD CBCLK HLDA HOLD ALE CLKOUT RTS0 CLK0 RXD0 TXD0 CLKS1 CLK1 RXD1 TXD1 R15 R14 C4 10K R17 2,3 R53 47K 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 C5 10K R18 /RESET MOTOR /POFF 33pF*9(C1-C9) C3 10K R16 CHAPTER 6. CIRCUIT DIAGRAM AND PWB LAYOUT 8 80 79 78 77 76 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 D8 D9 D10 D11 D12 D13 D14 D15 A0 A1 A2 A3 A4 A5 A6 A7 VSS A8 VCC A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 SOUT4 CLK4 TB4IN TB3IN SOUT3 SIN3 CLK3 BYTE CNVSS XCIN XCOUT RESET XOUT VSS XIN VCC NMI INT2 INT1 INT0 TA4IN/U TA4OUT/U TB3IN TBEOUT TA2INW TA2OUTW TA1IN/V TA1OUT/V TB5IN TB5OUT 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 – 15 – 4 CIRCUIT DIAGRAM AND PWB LAYOUT 4 2 3 33pF 10K R39 C6 10K R19 4 D2 1SS133 C C9 A + R41 47K 10K R22 VCC C43 1.5K R58 C8 10K R21 10uF/16V,AL C35 10K R40 C7 10K R20 R70 10K 0.1uF R55 10K 1000pF C50 2 2 B /RES 3 R67 10K VCC R66 10K 5 4 3 2 1 D0 D1 D2 D3 D4 D5 D6 D7 A0 A1 A2 A3 A4 A5 A6 /DREQUSB /INTUSB /CS1 /WR /RD CON5 CLK + A[0..16] D[0..7] J1 33pF C23 R43 10k DAT BZ1 CNVss RXD TXD VCC /CS3 VCC A[0..16] D[0..7] 3 PIEZO BZ VCC R51 47K 1SS133 D1 2 R24 10K TP1 VCC VCC VDD C46 DR1 /RD /WR /CS1 /CS2 10K R23 A8 A9 A10 A11 A12 A13 A14 A15 A16 C A XE-A20S VCC C32 0.1uF JST 25FMN-BTK-A 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 CN1 A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 D0 D1 D2 D3 D4 D5 D6 D7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IC1 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 NC A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 VSS IC3 C33 VCC A15 CS2 WE A13 A8 A9 A11 OE A10 CS1 T/O7 I/O6 I/O5 I/O4 I/O3 2 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VDD VCC VCC:20pin GND:10pin 2 5 6 9 12 15 16 19 10uF/50V + VDD 74HC374 OC CLK D0 D1 D2 D3 D4 D5 D6 D7 LP621024DM-70MM 1 11 3 4 7 8 13 14 17 18 2 D7 D6 D5 D4 D3 A10 A13 A8 A9 A11 A15 C22 0.1uF a b c d e f g dp a b c d e f g dp VDD 1 33pF C40 10K R59 33pF VCC 33pF C47 10K R63 R52 10K C36 1/3 VCC 2 2 2 2 2 2 2 2 1 /CS2 /RD /WR A B C D CIRCUIT DIAGRAM AND PWB LAYOUT A B C D 1 1 1 D4 34 33 32 31 30 29 28 27 26 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 8 A D G R72 10KG /S3 /S4 /S5 /S6 /S0 /S1 /S2 /S7 /S8 /RESET P90 P91 P92 P93 P94 P95 P96 P97 /S9 /VON a b c d e f g dp B C52 1 1 1 1 1 1 1 1 /S3 /S4 /S5 /S6 /S0 /S1 /S2 /S7 /S8 /RESET P90 P91 P92 P93 P94 P95 P96 P97 /S9 /VON a b c d e f g dp HUPS 1 7 3 1 1 1 1 1 1 1 1 1 C61 0.1uF PE VLED C57 0.1uF 0.1uF KRC111S Q3 2SK2731 S 10KG R74 VCC A Q2 1SS133 D5 P91 1SS133 CN4 C C 34FE-BT-VK-N /S3 P91 P91 /S4 P101 VP 7 1 1 1 1 TH /S7 KST0 KST1 KST2 KST3 1 2 3 4 5 6 7 8 9 10 11 12 CN5A 2K R82 ONLY HOLE 1 2 3 4 5 6 7 8 9 10 11 12 CN5B VP 6 VCC C53 330pF R73 30KG ONLY HOLE VCC 6 /STB1 /STB2 /LA + 1 1 6 5 - + C62 47uF 50V HUPS 1 1 16 15 14 13 12 11 10 9 C65 0.1uF TH CLK PE 1 VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6 74HC138 A B C G2A G2B G1 Y7 GND IC9 16 15 14 13 12 11 10 9 R75 5.1KF R71 56KG VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6 74HC138 A B C G2A G2B G1 Y7 GND IC8 /BS /AS 1 R81 10K AS BS 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 R83 4.7K P10 VCC 8 4 DRIVER C E 7 5 VCC /S8 /S9 /S0 /S1 /S2 /S3 /S4 /S5 /S6 C56 VO C64 0.1uF VCC DAT 0.1uF C60 0.1uF R78 10K IC6B BA10393 5 1 1 1 1 1 VCC TCOFF + VCC IN1 IN2 3 1 1 C55 10uF/16V ENA1 ENA2 1,3 DR1 7 14 6 9 2 13 1 4 P91 /S6 P91 /S6 A KRC111S 1SS133 D7 10uF/50V C F6 VCONT OUT1 OUT2 OUT3 OUT4 VS1 VS2 8 3 5 12 10 4 11 B Q5 + 3 3 VP 1 R80 4.7K R79 22K B C58 0.1uF 2SD2212 Q4 C66673 JUMPER WIRE(FB1) FB1 C54 10uF/50V AS /AS BS /BS jumper 1.8K R77 VDR 1SS133 D6 T500mA/250V C59 VO LB1838M GND GND IN1 IN2 ENA1 ENA2 VCC IC7 NOT INSTALL VCC 4 + 0.1uF C63 MOTOR 1K R76 0.1uF C51 FB2 2 C66673 JUMPER WIRE FB3 C66673 JUMPER WIRE(FB2) 1N4002 B NOT INSTALL D1A1 2 5045-03A 3 2 1 CN3 1 2 CN2 2/3 MOTOR 1 1 DRAWER1 STRAIGHT CON B2B-EH-A 2SD2212 Q1 VP C E 8 C A E – 16 – C C E C A XE-A20S A B C D A B C 8 ZD3 MTZJ5.1B 1uF/50V C72 NOT INSTALL R92 2.7K + R103 3.9K R93 9.1KG VO POWER R100 0 1 + - 3 2 7 P-OFF IC12A BA10393 1 56K R97 VCC R95 2.7K 2 6 5 MYLOR 0.033uF 3.15A /VON IC12B BA10393 VLED B2P-VH 2 1 CN6 - + 3 - C79 0.1uF 6 B C75 0.1uF R109 33 7 C66 D8 4 1 F3 Q8 KRA106S C76 1SS133 NOT INSTALL MTZJ5.1B C C 5 IC10 CB R90 24K 5 UDZ4.3B D19 + A 1 IC13 HEAT SINK + 1 IC11 HEAT SINK 1SS133 D10 C71 A R89 R86 22K 220uF/50V D18 ZD4 A 10K R106 10K R104 220uF/50V 1SS133 /VOFF 1.0A 1SS133 D12 C A A + 50V /POFF 2.2K R91 C67 3300uF D11 C /POFF 1 + 1 TCOFF 1 VPON 2 CP301 2 F1 5 2 5 B PQ1CG2032FZ 5 PQ1CG2032FZ Q7 KRC106S 6,8pin:N.C L:ON H:OFF 2 0 7 Q9 KRC106S 4 D9 R98 910F C69 R107 560 R105 10K 1000uF 16V + FMB-G24H 2.7KF R94 L1 63uH IPEAK>12A :100% 0.02uF(M) C78 RB060L40 D17 220uH L3 /VOFF RB060L40 D16 /VOFF R108 10K L2 180uH R88 18K R84 10(FUSE) with FUSE 4 L:OFF H,OPEN:ON Q6 KTD998 E LM2574 C Q1:HEAT SINK B 6 C A D C A 8 4 8 4 1 4 2 3 C E 4 7 E C C A 3 4 3 C77 VO VO:23.8V 3 1000uF/35V + C73 10uF/10V,OS + R87 3.3KF R85 17.8KF NOT INSTALL 3 C A 1 1N4002 1N4002 D14 A D13 A PTZ6.2A ZD2 + VLED C68 4700uF 16V C C 2 2 C A 8 C A C E – 17 – C CIRCUIT DIAGRAM AND PWB LAYOUT A ZD1 330uF 16V + C70 0.1uF(M) C74 R99 220 D15 RB721Q VCC +5V VLED +5.8V PTZ9.1B VP C A XE-A20S 1 2 CN7 VBAT 1 3/3 1 B2B-XH-A-E(BLUE) 100 R102 3.3M R101 22K R96 VDD VCC 1 A B C D CIRCUIT DIAGRAM AND PWB LAYOUT – 18 – A B C 8 BLM21PG221SN1D USB B Type 5 6 7 8 L4 CN1 1 2 3 4 DLP31SN121SL2 L2 BLM21PG221SN1D 7 BLM21PG221SN1D L3 L1 4 1 D 3 2 ■ SUB I/F 22pF C5 D1 D2 VCC 6 X1 4 1 R3 R4 R1 R2 0 1.5K 6 CSTCW24M IC2 BA033F 24MHz 1uF C4 C8 0.47uF UDZS 6.2B UDZS 6.2B A1 A2 A3 A4 A5 A6 22pF C6 C A 6 C A 7 3 8 2 8 XE-A20S 5 + 27 27 5 33uF/10V C7 R5 1M 0.1uF C1 3.3V Vcore 0.1uF C9 Vcore 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IC1 4 M66291FP Dack0# CoreVcc Dreq0# GND RST# DCS# D+ LWR# Vbus RD# TrON INT0# TEST HWR#/BYTE# Dack1# D15/A0 Dreq1# D14/P6 TC1# D13/P5 INT1#/SOF# D12/P4 IOVcc GND Xout IOVcc Xin D11/P3 GND CoreVcc D10/P2 D9/P1 A1 D8/P0 A2 D7 A3 D6 A4 A5 D5 A6 D4 D0 D3 D1 D2 4 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 VCC C2 3 A0 10k /DREQUSB /RST /CS1 /WR /RD /INTUSB + VCC R6 10uF/16V 3 VCC 0.1uF C3 D7 D6 D5 D4 D3 D2 D1 D0 2 2 D0 D1 D2 D3 D4 D5 D6 D7 A0 A1 A2 A3 A4 A5 A6 /DREQUSB /INTUSB /CS1 /WR /RD /RST VCC 1/1 1 JST 25FMN-BTK-A 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 CN2 1 A B C D XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 19 – A B C D 7 8 7 ONLY HOLE 1 2 3 4 5 6 7 8 9 10 11 12 CN4D ONLY HOLE 1 2 3 4 5 6 7 8 9 10 11 12 CN4C ■ PRINTER I/F PWB CIRCUIT 8 6 6 5 5 C201 0.1uF 4 VP 4 VCC C200 0.1uF 3 3 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 27FMN-BTK-A A /B B /A N.C VP VP /LAT /TH GND GND /STB1 VCC /STB2 GND GND CLK DAT VP VP N.C N.C VCC LED PE HUPS N.C CN31 2 2 1 1 1/1 A B C D CIRCUIT DIAGRAM AND PWB LAYOUT – 20 – A B C 8 BLM21PG221SN1D USB B Type 5 6 7 8 L4 CN1 1 2 3 4 DLP31SN121SL2 L2 BLM21PG221SN1D 7 BLM21PG221SN1D L3 L1 4 1 D 3 2 ■ USB I/F 22pF C5 D1 D2 VCC 6 X1 4 R4 R3 0 1.5K R1 R2 6 CSTCW24M IC2 BA033F 24MHz 1uF C4 C8 0.47uF UDZS 6.2B UDZS 6.2B A1 A2 A3 A4 A5 A6 C6 22pF C A 6 C A 7 3 8 1 2 8 XE-A20S 5 + 27 27 5 33uF/10V C7 R5 1M 0.1uF C1 3.3V Vcore Vcore 0.1uF C9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IC1 4 M66291FP Dack0# CoreVcc Dreq0# GND RST# DCS# D+ LWR# Vbus RD# TrON INT0# TEST HWR#/BYTE# Dack1# D15/A0 Dreq1# D14/P6 TC1# D13/P5 INT1#/SOF# D12/P4 IOVcc GND Xout IOVcc Xin D11/P3 GND CoreVcc D10/P2 D9/P1 A1 D8/P0 A2 D7 A3 D6 A4 A5 D5 A6 D4 D0 D3 D1 D2 4 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 VCC C2 3 A0 10k /DREQUSB /RST /CS1 /WR /RD /INTUSB + VCC R6 10uF/16V 3 VCC 0.1uF C3 D7 D6 D5 D4 D3 D2 D1 D0 2 2 D0 D1 D2 D3 D4 D5 D6 D7 A0 A1 A2 A3 A4 A5 A6 /DREQUSB /INTUSB /CS1 /WR /RD /RST VCC 1/1 1 JST 25FMN-BTK-A 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 CN2 1 A B C D XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 21 – A B C D 7 8 27 27 DP' R7 R8 G' 7 0 3 8 27 R6 F' 5 1 9 1 2 4 6 7 LED9 S568GWA G7' ■ REAR DISPLAY PWB CIRCUIT 8 1 4 G6' LED8 D568GWA 1 3 G5' 5 1 4 G4' LED7 D568GWA 4 1 3 G3' 1 4 G2' LED6 D568GWA 3 1 3 G1' 6 27 R5 E' 27 R4 D' 5 27 R3 C' 4 27 R2 B' 27 R1 3 A' 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 7 8 5 6 2 0 1 7 8 5 6 2 0 1 7 8 5 6 2 0 1 6 G1'..G7' 2 2 G1' G2' G3' G4' G5' G6' G7' A' B' C' D' E' F' G' DP' 1/1 1 52807-1510 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CN31 1 A B C D XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 22 – A B C D 7 8 7 1 4 LED5 D568GWA 1 3 G 9 ' 6 1 4 G 8 ' LED4 D568GWA 1 3 G 7 ' 5 1 4 G 6 ' LED3 D568GWA 1 3 G 5 ' 4 1 4 G 4 ' LED2 D568GWA 1 3 G 3 ' 1 4 G 2 ' LED1 D568GWA 3 1 3 G 1 ' 6 30 30 D P ' R234 R233 G ' 30 R235 F ' 5 30 R236 E ' 30 R237 D ' 4 30 R238 C ' 30 R239 B ' 3 30 R240 A ' 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 4 1 1 1 2 3 1 1 9 7 1 5 6 8 1 1 7 8 5 6 2 0 1 7 8 5 6 2 0 1 7 8 5 6 2 0 1 7 8 5 6 2 0 1 7 8 5 6 2 0 1 ' G 1 0 ■ DISPLAY PWB CIRCUIT 8 2 2 |LINK |POPUP.SCH 1 1 1/1 A B C D XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 23 – A B C D 7 2.7K /S9 /S8 /S7 /S6 /S5 /S4 /S3 /S2 /S1 /S0 /S1 8 1.25mm FPC CN 12 11 10 9 8 7 6 5 4 3 2 1 CN21 KID65083 INPUT 2 P 9 2 3 P 9 3 23 22 21 31 30 29 28 27 26 12 CN22 1.25mm FPC CN 1 P 9 1 35 34 33 32 42 41 40 39 25 24 3K 7.2K 4 9 8 7 6 5 4 3 2 1 P 9 4 7 5 P 9 5 11 10 20 19 18 17 16 15 14 13 6 P 9 6 47 46 45 44 43 53 52 38 37 36 GND 7 P 9 7 59 58 57 56 55 54 51 50 49 48 OUTPUT COMMON 8 9 ■ KEY MATRIX PWB CIRCUIT 8 1 0 / S 7 10 6 1 1 / S 6 9 1 2 MODE SW 2SD2170 B 6 / S 5 8 1 3 / S 4 7 1 4 / S 3 3.5K 6 1 5 M O R 5 300 1 6 / S 2 4 / S 1 5 1 7 E C 5 3 1 8 / S 0 2 1 9 / R E S E T 1 2 0 G N D 2 1 4.7K / V O N 2 2 G N D 4 48 49 37 25 24 36 13 1 47K 12 PF KRA101M, KRA106S INPUT 4 COMMON OUTPUT 3 50 38 26 14 2 3 51 39 27 15 3 52 40 28 16 4 53 41 29 17 5 2 2 54 42 30 18 6 55 43 31 19 7 56 44 32 20 8 57 45 33 21 9 1 58 46 34 22 10 1 59 47 35 23 11 1/1 A B C D XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 24 – A B C D 7 8 52044-3445 FROM MAIN D24 D25 D26 D27 D28 D29 D30 /S3 /S4 /S5 /S6 /S7 /S8 /S9 34 33 32 31 30 29 28 27 26 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 G1' G2' G3' G4' G5' G6' G7' A' B' C' D' E' F' G' DP' /S3 /S4 /S5 /S6 G1' G2' G3' G4' G5' G6' G7' A' B' C' D' E' F' G' DP' /S0 /S1 /S2 /S7 /S8 /RESET P90 P91 P92 P93 P94 P95 P96 P97 /S9 /VON a b c d e f g dp D23 /S2 CN23 D22 VCC D21 /S1 D31 /S0 /S1 52045-1245 1 2 3 4 5 6 7 8 9 10 11 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CN24 52806-1510 /S3 /S4 /S5 /S6 /S0 /S1 /S2 /S7 /S8 /RESET P90 P91 P92 P93 P94 P95 P96 P97 /S9 /VON A B C D E F G dp 7 POP UP C104 100uF/16V PLACE NEAR CONNECTER 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 1SS133 12 CN21 C105 0.1uF VLED VLED P[91..97] ■ KEY INTERFACE PWB CIRCUIT 8 6 P[91..97] 6 VCC P 9 1 2 P 9 2 KID65083AP 10PIN : NC 9 PIN :GND /S[0..9] 1 CN22 52044-2245 P 9 3 4 P 9 4 5 P 9 5 5 /S[0..9] or DTA143ESA 1 ' d p 1 8 P 9 6 7 P 9 7 12K R209 2 g 1 7 IC23B G ' 120 G 1 0 R219 ' / S 7 P90 1 0 Q20 KTA1664 9 120 Q32 R201 R202 R203 R204 R205 R206 R207 8 R218 12K R208 IC23A D P 6 2.54mm Pitch KRA101M X 10 47K * 7EA 3 KEY&MODE SW 5 / S 6 Q33 1 1 3 G 9 ' F ' f 1 6 / S 4 4 Q34 100pF C106 47K IC23C 120 R220 1 3 R228 Q21 KTA1664 12K R210 P90 / S 5 VCC 1 2 4 1 4 12K R211 M D R 4 e 1 5 E ' IC23D 120 R221 Q22 KTA1664 G 8 ' / S 3 1 5 / S 2 Q35 1 6 12K R212 / S 1 1 8 / S 0 G 7 ' 5 1 9 Q36 IC23E D ' 1 4 d 120 R222 Q23 KTA1663 1 7 3 120 R223 6 Q24 KTA1663 G 6 ' 2 1 c 1 3 2 2 Q37 G 5 ' 120 R224 Q25 KTA1663 R214 12K 7 /VON /RESET /VON IC23F C ' /RESET R213 12K 2 0 3 b 1 2 B ' IC23G Q31 G 4 ' 120 R225 Q26 KTA1663 12K R215 8 a 1 1 A ' Q30 2 IC23H G 3 ' 120 R226 Q27 KTA1663 R216 12K 2 Q29 G 2 ' 120 R227 Q28 KTA1663 R217 12K G 1 ' |LINK |POPUP.SCH Q38 Q39 KTA1663 VLED 1 VLED 1 1/1 A B C D MIAN PWB 2. PWB LAYOUT A. Side XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 25 – B. Side XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 26 – Q USB I/F PWB A. Side B. Side XE-A20S CIRCUIT DIAGRAM AND PWB LAYOUT – 27 – q COPYRIGHT 2005 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 Digital Document Systems Group Products Quality Assurance Department Yamatokoriyama, Nara 639-1186, Japan 2005 January Printed in Japan t