Service manual

ManualsBrandsSharp ManualsCash RegisterXE-A20S

CODE : 00Z

SERVICE MANUAL

CONTENTS

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.

XEA20SUSME

ELECTRONIC

CASH REGISTER

MODEL

XE-A20S

(U version)

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

Summary of content (30 pages)

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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.
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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: Lead-Free 5mm Solder composition Solder composition code (Refer to the table at the right.
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CHAPTER 1. SPECIFICATIONS 1.
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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.
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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.
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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.
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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.
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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.
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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.
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PORT PIN Pin I/O No.
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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.
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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.
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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.
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CHAPTER 5. TEST FUNCTION 1. TEST ITEMS 2) KEY CODE 1 Key operation The test items are as follows: NO.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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'..
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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
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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.
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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
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MIAN PWB 2. PWB LAYOUT A.
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B.
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Q USB I/F PWB A. Side B.
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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.