Instruction/ maintenance manual of the product ER-A520 Sharp
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CODE : 00Z q SERVICE MANUAL CO NTEN TS Part s ma rked w ith " ! " are important for maintaining the safety of th e set. Be sure to replace these parts with specifi ed ones for maintaining the safety and perfo rmance of the set. SHARP CORPORATION This docum ent has been published to be used for after sales serv ice on ly.
ER-A 520U/ ER- A530 U SPECI FI CATI ONS – 1 – CHAPTER 1. SPECI FICATIONS 1. APPEARANCE ER-A520 ER-A530 2. RATING 3. KEYBOARD 3-1. KEYBOARD LAYOUT ER-A520 ER-A530 3-2. KEY LAYOUT ER-A520 KEYLA YOU T Note: All the keys except the receipt paper fee d and journal paper feed keys can be re-positioned.
ER-A 520U/ ER- A530 U SPECI FI CATI ONS – 2 – Note: The following function keys can optionally be mounted in place of those shown in the figure of the standard keyboard layout. For details, please consult y our authorized SHARP dealer. ■ Optional keys Note: The department an d direct PLU keys may be expanded.
ER-A 520U/ ER- A530 U SPECI FI CATI ONS – 3 – ■ Optional keys Note: Department and direct PLU ke ys can be expanded. If you require expansion of the department or direc t PLU keys, please contact your authorized SHARP dealer. 4. MODE SW ITCH 4-1.
ER-A 520U/ ER- A530 U SPECI FI CATI ONS – 4 – 5. DISPLAY 5-1. OPERA TOR DISP LAY Lay out: 5-2. CUSTOM ER DISPL AY Lay out: 6. PRIN TER 1) PRINTER (P R-58HM) 2) PA PER Display device: LCD Number of lines: 2 lines Number of positions: 16 positions Color of display: Yellow / Green Character font: 5 x 7 dot Character size: 4.
ER-A 520U/ ER- A530 U OPTI ONS – 5 – 7. DRAWER [OUTLINE] • Standard equipm ent: Yes • Max. number of additional drawers: 1 • The drawer consists of: 1) Drawer box (ou ter case) and drawer 2) Money case 3) Lock (attached to the drawer) [SPECIFICATION] 7-1.
ER-A520U/ER-A530U MASTER RESET AND PROGRAM RESET – 6 – CHAPTER 3. MASTER RESET AND PROGRAM RESET The SRV key is used f or performing entries in the SRV mode. A MASTER R ESET c lears the e n tire me mory an d resum es ini t i a l val ues. A PROGRAM RE SET resumes the initial program without clearing the memory.
ER-A520U/ER-A530U HA RDWARE DESCRIPTION – 7 – CHAPTER 4. HARDWARE DESCRIPTION 1. BLOCK DIAGRAM ER-A520 and ER-A530 2. MEMORY MAP 2-1. ADDRESS MAP CPU MITSUBISHI M30802G P 12MHz (INTERNAL RAM 10KB .
ER-A520U/ER-A530U HA RDWARE DESCRIPTION – 8 – 3. CPU PIN TABLE M16C/80 PORT USED IN PROCESSOR MODE: MICROPROCESSOR MODE (SEPARATE BUS 8bit WIDTH) PORT PIN No.
ER-A520U/ER-A530U HA RDWARE DESCRIPTION – 9 – POWER SUPPLY/CONTROL PINS P91 6 P 91/ RxD3 STH I − I n UP-P16D P ST H SIGNAL P92 5 P 92/ TxD3 HTS O L Out L UP -P16DP HTS SIGNAL P93 4 P 93/ RTS3# D.
ER-A520U/ER-A530U HARDWARE DESC RIPTION – 10 – 4. PRINTER CONTROL The PR-58HM printer is employed. 4-1. STEPPING MOTOR CONTROL The stepp ing motor is dr iven at a cons tant cu rrent by SMA 70 36M (m ade by Sank en).
ER-A520U/ER-A530U HARDWARE DESC RIPTION – 11 – 5. A/D CONVERSION In the ER-A520/530, the f ollowing three kinds of signals ar e inputted to the A/D convers ion port. <CPU POR T > 5-1. PRINTER HEAD TE MPERATURE MONITOR A voltage divided by the temperature detection thermistor of the printer head and the res istor is inputted to AN0 pin.
ER-A520U/ER-A530U HARDWARE DESC RIPTION – 12 – 6-2. KEY/DI SPLAY S C AN Key/display scan and key read are performed at the following timing. 1 Key/display s can cycle: 10m s 2 Blanking time: 50us 3 KEY DATA READ timing: Read before 10~100us of strobe signal OFF.
ER-A520U/ER-A530U HARDWARE DESC RIPTION – 13 – 6-3. DISP LAY The ER-A520/530 is provided with the LCD display of 5 x 7 dot, 2 line, 16 digit on the FRONT s ide, and the LE D display of 7 digit on the PO P UP side. FRON T: POP UP: • DISP LAY DIG IT SIGN AL The above S T0~ST6 are DIGIT s ignals.
ER-A520U/ER-A530U HARDWARE DESC RIPTION – 14 – 11. RISTRICTIONS ON PRINT RATIO Max. 288d ot/1line x 1 40line (Corresp onds to black b ackgroun d LOG print) Ave. 108dot/1line or less (Corresponds to 12.5% of all dots) 12. BUZZER Oscillation frequency is 2.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM – 15 – CHAPTER 5. DIAGNOSTIC PROGRAM 1. TEST ITE MS The test items are as follows: * Starting DIAG. Mode switch: SRV key operation: Above code + “CA/AT” key 2.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM – 16 – 3) PRINTER TEST 1 Key ope ration 102 3 2 Test procedure At the receipt side, the logo is also printed and the receipt is issued. 3 Check that: The print is free from contamination, blur, and uneven density.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM – 17 – 7) CLOCK TEST 1 Key ope ration 107 3 2 Test procedure 3 Check that: “–“ blinks and the clock counts up. 4 End of t esting When any k ey is pressed, the dat e and time are printed and the test mode will be terminated.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM – 18 – 11) STANDAR D RAM TEST 1 Key operation 120 3 2 The standard RAM is checked. The co ntents of memory must be the sa me befor e and a fter this test.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM – 19 – 13) CP U INTERNAL RAM TEST 1 Key ope ration 122 3 2 Test procedure The test pr ogram tests internal RA M (10 Kbyt es) of the CP U. The contents of memory must be stored before and after this test. RAM (00400H ~ 02BF FH area) is tested in the follo wing procedure.
ER-A520U/ER-A530U DIAGNOSTIC PROGRAM – 20 – Data comm unication check A loopback test of 256-byte data bet ween is performed. DATA: $00 - $F F BAUD RATE:9600 BP S 3 Check: The completion print . 4 End of t esting 18) RS23 2 CH2 TEST Install the RS232 loo pback connector.
ER-A 52 0U/ER-A5 30U IPL FROM EP-R OM – 21 – CHAPTER 6. IPL FROM EP-ROM Before installation, unplug the A C power cord from the AC outlet. 1. Open the top cabinet. 2. S et the IPL switch (S1) to ROM COPY position. 3. Inst all the IPL ROM in the IC socket of the MAIN PWB.
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 22 – A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D .
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 23 – A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D .
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 24 – A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A 3/7 LCD I/F / KEY I/F VCC:20pin GND:10 pin D[0.
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 25 – A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D .
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 26 – A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D .
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 27 – A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D .
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 28 – A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A A B C D 8765 4 3 21 1 2 3 4 5 6 7 8 D C B A 7/7 POWER [+5V, VLED] VLED + 5.
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 29 – PWB LAYOUT.
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 30 –.
ER-A520U/ER-A530U CIRCUIT DIAGRAM AND PWB LAYOUT – 31 –.
q SHARP CORPORATION Digital Document Systems Group Products Quality Assur ance Depart ment Yamatoko riyama, Nara 639-1186 , Japan 2004 March Printed in Japan t COPYRIGHT 2004 BY SHARP CORPORATION All rights reserved. Printed in Japan . No part o f this publicat ion may be re produced, stored i n a retrieval sy stem, or trans mitted.
An important point after buying a device Sharp ER-A520 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Sharp ER-A520 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Sharp ER-A520 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Sharp ER-A520 you will learn all the available features of the product, as well as information on its operation. The information that you get Sharp ER-A520 will certainly help you make a decision on the purchase.
If you already are a holder of Sharp ER-A520, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Sharp ER-A520.
However, one of the most important roles played by the user manual is to help in solving problems with Sharp ER-A520. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Sharp ER-A520 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
