Sharp ER-A520 Service Manual
Sharp ER-A520 Manual
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- Sharp ER-A520 | Service Manual - Page 1
q SERVICE MANUAL CODE : 00ZERA520USME ELECTRONIC CASH REGISTER ER-A520 ER-A530 ER-A520 MODEL ER-A530 (U, A version) CONTENTS CHAPTER 1. SPECIFICATIONS 1 CHAPTER 2. OPTIONS 5 CHAPTER 3. MASTER RESET AND PROGRAM RESET 6 CHAPTER 4. HARDWARE DESCRIPTION 7 CHAPTER 5. DIAGNOSTIC PROGRAM 14 - Sharp ER-A520 | Service Manual - Page 2
x 15 (H) mm 3-2. KEY LAYOUT ER-A520 KEYLAYOUT ■ STANDARD KEY LAYOUT NC SLIP RCPT PBLU CONV RA FINAL CASH# PLU/UPC @ FOR CL 789 %1 PO TAX 456 %2 TAX SHIFT 123 RFND VOID #/TM 0 00 ■ TEXT PRESET KEY LAYOUT NUM V ^ @/FOR CL ` O -2 ` ~ 789 456 123 0 00 PRICE CHANGE 5 10 AMT INQ - Sharp ER-A520 | Service Manual - Page 3
number key Scale entry key PLU level shift 1 thru 5 keys Price level shift 1 thru 6 keys Validation print key Cover count entry key No delete key Bill separation key Bill totalize/Bill transfer key (CHECK-ADD) Birthday entry key Refund sales key Waste mode key Condiment next key Condiment cancel key - Sharp ER-A520 | Service Manual - Page 4
" and "OFF" by pressing the [RCPT] key. (To utilize this function, the register must be programmed for "OP X/Z mode available" in the PGM2 mode.) REG: For entering sales PGM1: To program those items that need to be changed often: e.g., unit prices of departments or PLUs, and percentages. PGM2: To - Sharp ER-A520 | Service Manual - Page 5
Paper feed speed Approximate 65 mm/s Reliability Mechanism: MCBF 5milion lines Paper end sensor Yes (Receipt and Journal) Cutter Manual Paper PAPER Item Name Roll dimension Thickness Description Heat-quality paper 57.5 m 0.5 mm in width 0.06 mm to 0.08 mm ER-A520U/ER-A530U SPECIFICATIONS - Sharp ER-A520 | Service Manual - Page 6
drawer 2 Key kit 3 Display 4 Memory 1 x 1 key top kit (30) 1 x 2 key top kit (30) 2 x 2 key top kit (10) 1 x 1 dummy key kit (30) 5 x 1 dummy key kit (10) RAM board MODEL NAME ER-03DW ER-04DW ER-11KT7 ER-12KT7 ER-22KT7 ER-11DK7G ER-51DK7G UP-P16DP UP-S02MB ER-A520 only REMARK ER-A520U/ER - Sharp ER-A520 | Service Manual - Page 7
resumes initial values. A PROGRAM RESET resumes the initial program without clearing the memory. There are 2 kinds of MASTER RESET operations. MASTER RESET 1: Normal MASTER RESET Clears the entire memory and resumes initial values. MASTER RESET 2: It enables the layout of fixed keys in addition to - Sharp ER-A520 | Service Manual - Page 8
ER-A520 and ER-A530 DRIVER, SENSOR PRINTER DRAWER1 DRAWER2 CPU RAM 10KB RAM OPT RAM FROM 1MB 2MB 1MB LCD 16 digits x 2LINE SEG DRIVER DIG DRIVER POPUP 7 digits LED 4 to 16 DECODER KEY SCAN 10KB) EXTERNAL MEMORY STD RAM 1MB OPT RAM 2MB FLASH ROM 1MB PRINTER PR58HM 2. MEMORY MAP 2-1. - Sharp ER-A520 | Service Manual - Page 9
SEPARATE PAPER FEED A O L Out L RECEIPT PAPER FEED B O L Out L RECEIPT PAPER FEED C O L Out L RECEIPT PAPER FEED D O L Out L JOURNAL PAPER FEED A O L Out L JOURNAL PAPER FEED B O L Out L JOURNAL PAPER FEED C O L Out L JOURNAL PAPER In DRAWER OPEN ER-A520U/ER-A530U HARDWARE DESCRIPTION - 8 - - Sharp ER-A520 | Service Manual - Page 10
P93 4 P93/ DRAWER1 O L Out L DRAWER 1 RTS3# DRIVE SIGNAL P94 3 P94/ DRAWER2 O L Out L DRAWER 2 RTS4# DRIVE SIGNAL P95 2 P95/ In PRINTER RECEIPT PAPER EMPTY DETECTION P105 135 P105/ JPRS I − AN5 In PRINTER JOURNAL PAPER EMPTY DETECTION P106 134 ER-A520U/ER-A530U HARDWARE DESCRIPTION - 9 - - Sharp ER-A520 | Service Manual - Page 11
make sure to turn /STB1,2,3,4 to "H." *Do not turn on the printer under paper empty state. *During printing or paper feeding, after 10ms of turning on the printer head power, A/D conversion must be performed to check that the voltage is stabilized before starting the operation. 4-3. OTHER PORTS No - Sharp ER-A520 | Service Manual - Page 12
ER-A520/ KEY/DISPLAY 6-1. LCD CONTROL LCD control is same as the ER-A275P. LCD-related Register Function LCD Write Data LCD Read Data Address R/W 100001h W R/W# H: Data read L: Data Write P122 LRS H: Data input L: Instruction Input DATA WRITE (CPU 3 LCD) LRS LR/W# LE DB0-7 Valid Data - Sharp ER-A520 | Service Manual - Page 13
following timing. 1 Key/display scan cycle: 10ms 2 Blanking time: 50us 3 KEY DATA READ timing: Read before 10~100us of strobe signal OFF. Key/Display-related Register Function Address R/W LED Segment BLANK Fh 0h 1ST DIGIT DISPLAY DATA BLANK ER-A520U/ER-A530U HARDWARE DESCRIPTION - 12 - - Sharp ER-A520 | Service Manual - Page 14
DISPLAY The ER-A520/530 is provided with the LCD display of 5 x 7 dot, 2 line, 16 digit on the FRONT side, and the LED display of 7 digit on the POP UP side. FRONT: 8. POWER TRANS. Service interruption should be performed within 10ms after generation of /POFF. LM2574 + TR 24V DRAWER PRINTER POP - Sharp ER-A520 | Service Manual - Page 15
LOG print) Ave. 108dot/1line or less (Corresponds to 12.5% of all dots) 12. BUZZER Oscillation frequency is 2.048kHz (2.0kHz~2.2kHz). No. CPU PORT Signal to be used Function 29 P80 BUZZER BUZZER SIGNAL 13. UP-P16DP I/F The ER-A520 POWER ON Instant service interruption MODE SRV - Sharp ER-A520 | Service Manual - Page 16
test 8) 110 Drawer 1 open & sensor test 9) 111 Drawer 2 open & SCANNER test *Starting DIAG. Mode switch: SRV key operation: Above code + "CA/AT" key 2. DESCRIPTION OF EACH DIAG PROGRAM CODE SRV KEYBOARD KEY CODE 3 Check that: KEYBOARD: 1: Normal type ER-A520U/ER-A530U DIAGNOSTIC PROGRAM - 15 - - Sharp ER-A520 | Service Manual - Page 17
prints the error message. OP display KEY BOARD Check the following. X: 1 - Paper present at the receipt side O - No paper at the receipt side Y: 1 - Paper present at the journal side O - No paper check data that will be entered when DIAG is started. ER-A520U/ER-A530U DIAGNOSTIC PROGRAM - 16 - - Sharp ER-A520 | Service Manual - Page 18
. Blinks at an interval of 0.5 sec. 3 Check that: "-" blinks and the clock counts up. DRAWER 1 X : O = DRAWER OPENED C = DRAWER CLOSED SRV X 3 Check that: A) The drawer 1 opens normally. B) The sensor correctly indicates the status of the drawer Example: 10, A0) 3 Check that: A) Displays are - Sharp ER-A520 | Service Manual - Page 19
, the printer outputs the error message and the address where the error has occurred in the area *****. 12) OPTION RAM TEST 1 Key operation 121 3 CA/AT 2 The standard RAM is checked. The test program tests internal RAM (10 Kbytes) of the CPU. The contents of memory must be stored before and after - Sharp ER-A520 | Service Manual - Page 20
program tests internal RAM (10 Kbytes) of the CPU. The contents of memory checked in turns. Addresses to be checked message and the address where the error has occurred in the area *****. 14) FLASH ROM TEST 1 Key operation 130 3 CA/AT 2 Test procedure The test program checks program program checks - Sharp ER-A520 | Service Manual - Page 21
error/framing error 19)SCANNER TEST The data read with ER-A6HS1 is displayed and paper sending are carried out. 3 Check: Check whether the read data is right. 4 End of testing You can exit the test mode by pressing any key. The printer prints the following. 510 ER-A520U/ER-A530U DIAGNOSTIC PROGRAM - Sharp ER-A520 | Service Manual - Page 22
power cord into the AC outlet. 5. Turn the mode key switch to SRV position. The IPL procedure is started. When the procedure is completed, the message of "Completed" is shown. ER-A520U/ER-A530U IPL FROM EP-ROM - 21 - - Sharp ER-A520 | Service Manual - Page 23
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 22 - 8 7 6 5 4 3 2 1 CHAPTER 7. CIRCUIT DIAGRAM AND 47K VCC 6 DRAWER1 5 P92/TB2in/TxD3/SDA3/SRxD3 4 P93/DA0/TB3in/CTS3/RTS3/SS3 64 P51/WRH/BHE/CASH 63 P52/RD/DW R58 R59 R60 10K 10K 10K 6 DRAWER2 PCLCK 3 P94/DA1/TB4in/CTS4/RTS4/SS4 2 - Sharp ER-A520 | Service Manual - Page 24
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 23 - 8 7 6 5 4 3 SRAM / FROM / EPROM / POFF 1,3,6 D[0..7] 1,3,6 A[0..22] D VCC VCC C56 0.1uF A21 1 IPLON0 A22 1,3 A23# + C55 10uF/50V IC6 1 2 3 4 5 6 7 8 A B C G2A - Sharp ER-A520 | Service Manual - Page 25
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 24 - 8 7 6 5 4 LCD I/F / KEY I/F D 1,2,6 D[0..7] VCC C73 0.1uF D[0. .7] VCC + C72 10uF/50V C75 0.1uF 1,2,6 1,2,6 1,2,6 1,2,6 1,2 1,2 WR# A0 A20 A21 A22 A23# + C74 - Sharp ER-A520 | Service Manual - Page 26
JDS 14 INB SYNCA 2 SYNCB 11 GB GA RSB REFB REFA RSA R120 9.1kF 12 4 9 13 3 7 SMA7036M C R123 1kF R124 R125 1F(1W) 1F(1W) ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 25 - +24V VRCOM 6 VCC R128 1K D5 D5 1 VHCOM B 1SS355 R176 1SS355 D6 0 R132 15K 1,6 STRB1# 1SS355 D7 - Sharp ER-A520 | Service Manual - Page 27
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 26 - 8 7 6 5 RS232C DRIVER / UP-P16DP CN D 1 RS1# 1 ER1# 1 TxD1 1 RxD1 1 CD1# 1 CI1# 1 DR1# C 1 CS1# C99 0.1uF C101 0.1uF VCC - Sharp ER-A520 | Service Manual - Page 28
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 27 - 8 7 6 5 4 OPTION RAM CONNECTOR / PRINTER CONNECTOR / DRAWER VCC EFCB322513TS X 25 FB3 4 VH CN4 TO OPTION RAM PWB FB4 D UP-S02MB 1 4 VJCOM FB5 1,2,3 A[0..21] 1,2,3 WR# WR# 2 3 4 JPFA# FB6 4 4 JPFB# A21 5 A20 6 A19 7 - Sharp ER-A520 | Service Manual - Page 29
HEAT SINK L1 180uH IC25 7 LM2574HVN 6,8PIN :NC R156 D14 10(FUSE) RB160L-60 R157 22KF + C128 2200uF/35V R159 1.2KF ZD2 PTZ30B +24V C ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 28 - [+5V, VLED] +24V IC1:HEA T SINK F6 T1.0A/250V IC26 PQ1CG2032FZ IPEAK>2.2A L2 4 1 2 180uH - Sharp ER-A520 | Service Manual - Page 30
PWB LAYOUT ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 29 - - Sharp ER-A520 | Service Manual - Page 31
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 30 - - Sharp ER-A520 | Service Manual - Page 32
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT - 31 - - Sharp ER-A520 | Service Manual - Page 33
. 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
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CODE : 00Z
q
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.
ERA520USME
ELECTRONIC
CASH REGISTER
ER-A520
MODEL
ER-A530
(U, A version)
CHAPTER 1.
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CHAPTER 2.
OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CHAPTER 3.
MASTER RESET AND PROGRAM RESET. . . . . . . . . 6
CHAPTER 4.
HARDWARE DESCRIPTION . . . . . . . . . . . . . . . . . . . . 7
CHAPTER 5.
DIAGNOSTIC PROGRAM . . . . . . . . . . . . . . . . . . . . . 14
CHAPTER 6.
IPL FROM EP-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . 19
CHAPTER 7.
CIRCUIT DIAGRAM AND PWB LAYOUT . . . . . . . . . 20
ER-A520
ER-A530
PARTS GUIDE