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SERVICE MANUAL
CODE : 00ZERA520USME
ELECTRONIC
CASH REGISTER
ER-A520
ER-A520
MODEL ER-A530
(U, A version)
ER-A530
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 . . . . . . . . . . . . . .
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CHAPTER 1. SPECIFICATIONS 3-2. KEY LAYOUT 1. APPEARANCE ER-A520 KEYLAYOUT ER-A520 ■ STANDARD KEY LAYOUT Front view Rear view PRICE FS AUTO CASH# PLU/UPC AMT INQ NC SHIFT 1 CHANGE Printer Customer display (Pop-up type) @ FS AUTO SLIP RCPT PBLU CL 5 10 15 20 FOR TEND 2 cover lock (left side) Printer cover CONV RA FINAL 4 9 14 19 NS CH1 7 89 Operator display CHK Receipt paper PO TAX 3 8 13 18 CH2 %1 4 56 Journal window MDSE TAX 2 7 12 17 SBTL %2 1 2 3 SHIFT SBTL Keyboard RFND VOID #/TM 1 6 11 16 CA
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ER-A530 KEYLAYOUT SLIP Slip printer key ■ STANDARD KEY LAYOUT #/TM Non-add code/Date & time display key AUTO L1 L2 L3 RECEIPT JOURNAL 97 98 1 91 92 93 94 95 96 99 100 Note: The following function keys can optionally be mounted in place of AUTO RCPT % 79 80 81 82 83 84 85 86 87 88 89 90 2 those shown in the figure of the standard keyboard layout. For RP AUTO VOID INQ 3 details, please consult your authorized SHARP dealer. 67 68 69 70 71 72 73 74 75 76 77 78 SEND SERV PLU/ RFND NC CONV # SUB 56 57
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SM MA OP ■ Optional keys 4. MODE SWITCH DEPT# Dept. number key 4-1. MODE SWITCH AND MODE KEYS %2 ~ %5 Percent 2 thru 5 keys - 2 ~ -5 Discount 2 thru 5 keys Operative range CH4 ~ CH9 Charge 4 thru 9 keys MA CA2 ~ CA5 Cash 2 thru 5 keys CONV2 ~ CONV4 Currency conversion 2 thru 4 keys SM RA1, RA2 Received-on-account 1 and 2 keys PO1, PO2 Paid-out 1 and 2 keys AUTO4 ~ AUTO10 Automatic sequencing4 thru 10 keys REG CHK2 ~ CHK5 Check 2 through 5 keys OP X / Z MGR TRANS OUT Transfer out key OFF X1/Z1 T
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5. DISPLAY 6. PRINTER 1) PRINTER (PR-58HM) 5-1. OPERATOR DISPLAY Item Description No. of station 2: Receipt and Journal Display device: LCD Validation No Number of lines: 2 lines Printing system Line thermal Number of positions: 16 positions No. of dot Receipt: 360 dots Color of display: Yellow / Green Journal 360 dots Dot pitch Horizontal: 0.125mm Character font: 5 x 7 dot Vertical: 0.125mm Character size: 4.84 (W) x 8.06 (H) mm Font 10 dots (W) x 24 dots (H) Layout: Printing capacity Receipt:
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7-3. LOCK (LOCK KEY: LKGIM7331BHZZ) 7. DRAWER Location of the lock: Front [OUTLINE] Method of locking and unlocking: Standard equipment: Yes Max. number of additional drawers: 1 To lock, insert the drawer lock key into the lock and turn The drawer consists of: it 90 degrees counter clockwise. To unlock, insert the drawer lock key and turn it 90 1) Drawer box (outer case) and drawer degrees clockwise. 2) Money case Key No: SK1-1 3) Lock (attached to the drawer) [SPECIFICATION] 7-1. DRAW
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CHAPTER 3. MASTER RESET AND PROGRAM RESET The SRV key is used for performing entries in the SRV mode. 3. PROGRAM RESET A MASTER RESET clears the entire memory and resumes initial values. Please use either “Procedure A”, “Procedure B” or “Procedure C” A PROGRAM RESET resumes the initial program without clearing the Procedure A: 1) Set the mode switch to the (SRV’) position. memory. 2) Plug in the AC power cord to the wall outlet. There are 2 kinds of MASTER RESET operations. 3) Without pressing t
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CHAPTER 4. HARDWARE DESCRIPTION 1. BLOCK DIAGRAM 2. MEMORY MAP ER-A520 and ER-A530 2-1. ADDRESS MAP Microprocessor mode : MODE0 IPLION0# "L" IPLON0# "H" DRAWER1 DRAWER1 000000h SFR AREA INTERNAL 000400h INTERNAL RAM AREA(10KB) AREA DRAWER2 DRAWER2 INTERNAL RESERVE AREA 000800h (1BCLK:0WAIT) NOT USED 100000h EXTERNAL RAM OPT RAM FROM AREA0 CPU EXTERNAL I/O (2BCLK:1WAIT) RAM 10KB 200000h 1MB 2M 1 B MB EXTERNAL NOT USED AREA1 LCD LCD 300000h DRIVER, SENSOR 16 digits (3BCLK:2WAIT)
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3. CPU PIN TABLE M16C/80 PORT USED IN PROCESSOR MODE: MICROPROCESSOR MODE (SEPARATE BUS 8bit WIDTH) PIN Pin Signal Initial After PIN Pin Signal Initial After PORT I/O Function PORT I/O Function No. name name value POFF No. name name value POFF P00 122 D0 D0 I/O − In DATA BUS D0 P47 69 A23# A23# O − Out L Address Bus A23 /CS0# P01 121 D1 D1 I/O − In DATA BUS D1 P50 65 WR# WR# O − Out L WRITE STROBE P02 120 D2 D2 I/O − In DATA BUS D2 SIGNAL P03 119 D3 D3 I/O − In DATA BUS D3 P51 64 BHE# BHE# O −
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PIN Pin Signal Initial After PIN Pin Signal Initial After PORT I/O Function PORT I/O Function No. name name value POFF No. name name value POFF P91 6 P91/ STH I − In UP-P16DP STH P134 51 P134 ER1# O H In RS-232 ER1 RxD3 SIGNAL P135 50 P135 CD1# I − In RS-232 CD1 P92 5 P92/ HTS O L Out L UP-P16DP HTS P136 49 P136 CS1# I − In RS-232 CS1 TxD3 SIGNAL P137 48 P137 DR1# I − In RS-232 DR1 DRAWER1 P93 4 P93/ O L Out L DRAWER 1 RTS3# DRIVE SIGNAL P140 14 P140 KR8# I − In KEY RETURN SIGNAL 8 DRAWER2 P
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4-2. HEAD CONTROL 4. PRINTER CONTROL HEAD: All864dot The PR-58HM printer is employed. Printable area:RECEIPT side, 360dot; JOURNAL side, 360dot 4-1. STEPPING MOTOR CONTROL The stepping motor is driven at a constant current by SMA7036M (made Related PORT by Sanken). No. CPU PORT Signal to be used 1step: 0.125mm, 1dot: 1step 2 P95/CLK2 PCLK Printing speed: 50mm/s 1 P96/TXD4 SO 144 P97/RXD4 SI 118 P110 STRB1# No. CPU PORT Signal to be used 117 P111 STRB2# 109 P10 RAS 116 P112 STRB3# 10
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5. A/D CONVERSION 6. KEY/DISPLAY In the ER-A520/530, the following three kinds of signals are inputted to 6-1. LCD CONTROL the A/D conversion port. LCD control is same as the ER-A275P. LCD-related Register Signal to No. CPU PORT Function Function Address R/W be used LCD Write Data 100001h W 130 AN0 TM PRINTER HEAD TEMPERATURE MONITOR LCD Read Data 100001h R 138 AN1 VPTEST PRINTER HEAD VOLTAGE MONI- TOR Signal to 137 AN2 VREF REFERENCE VOLTAGE No. CPU PORT Function be use
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6-2. KEY/DISPLAY SCAN Key/display scan and key read are performed at the 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 Signal 100000h W Write Address Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 100000h DP g f e d c B a Signal to Signal to No. CPU PORT Function No. CPU PORT Function be used be used 12 P142 MODE#
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6-3. DISPLAY 8. POWER The ER-A520/530 is provided with the LCD display of 5 x 7 dot, 2 line, Service interruption should be performed 16 digit on the FRONT side, and the LED display of 7 digit on the POP UP side. within 10ms after generation of /POFF. FRONT: 24V DRAWER LM2574 + TR TRANS. PRINTER ON/OFF control (MODE SW) PQ1CG2032 VLED 5.7V POP UP: VCC 5.0V VDD 5.0V /POFF detection point BATTERY DISPLAY DIGIT SIGNAL The above ST0~ST6 are DIGIT signals. 9. FLASH MEMORY REWRITE PROCEDURE ST0:1s
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11. RISTRICTIONS ON PRINT RATIO 15. POFF Max. 288dot/1line x 140line (Corresponds to black background LOG print) The POFF signal is changed from 0 to 1 when the 5V power and the 24V power reach the operating voltage level. Ave. 108dot/1line or less (Corresponds to 12.5% of all dots) It is changed from 0 to 1 when the power falls below the operating volt- age level. 12. BUZZER POFF, RESET TIMING CHART +5V Oscillation frequency is 2.048kHz (2.0kHz~2.2kHz). 20.8V +24V Signal to No. CPU
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CHAPTER 5. DIAGNOSTIC PROGRAM 1. TEST ITEMS 2. DESCRIPTION OF EACH DIAG PROGRAM The test items are as follows: 1) DISPLAY BUZZER TEST Code Description 1 Key operation 1) 100 Display buzzer test 100 3 CA/AT 2) 101 Key code 2 3) 102 Printer test Test procedure 4) 104 Keyboard test OP display DISP BUZZER SRV 5) 105 Mode switch test 0123456789 ABCDEF 6) 106 Printer sensor test 7) 107 Clock test Rear display 4.5.6.7.8.9.0. 8) 110 Drawer 1 open & sensor test 9) 111 Drawer 2 open & sensor test The dec
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3) PRINTER TEST 5) MODE SWITCH TEST 1 Key operation 1 Key operation 102 3 105 3 CA/AT CA/AT 2 Test procedure 2 Test procedure OP display R/J PRINTER SRV OP display SRV MODE SW 105 X Enlargement MODE: SRV_PGM2_PGM1_OFF_OP X/Z_REG_MGR_X1/Z1_X2/Z2__SRV X :00 1 293 4 5 6 7 The above X must be read in the correct order. (If the contact is open, 9 will be displayed.) 3 Check: 5 lines of 24 digits are printed. The display during testing and the content of the completion print. 4 End of testing At t
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7) CLOCK TEST 9) DRAWER 2 OPEN & SENSOR TEST 1 Key operation 1 Key operation 107 3 111 3 CA/AT CA/AT 2 Test procedure 2 Test procedure OP display OP display TIMER CHECK SRV 2 SRV DRAWER 107 X X : O = DRAWER OPENED Hour Min. Sec. C = DRAWER CLOSED Blinks at an interval of 0.5 sec. 3 Check that: A) The drawer 2 opens normally. 3 Check that: B) The sensor correctly indicates the status of the drawer 2. “–“ blinks and the clock counts up. 4 End of testing 4 End of testing You can exit the test mod
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11) STANDARD RAM TEST 12) OPTION RAM TEST 1 Key operation 1 Key operation 120 3 CA/AT 121 3 CA/AT 2 The standard RAM is checked. 2 The standard RAM is checked. The contents of memory must be the same before and after this test. The test program tests internal RAM (10 Kbytes) of the CPU. RAM (100000H~1FFFFFH area) is tested in the following procedure: The contents of memory must be stored before and after this test. RAM (00400H ~ 02BFFH area) is tested in the following procedure. a) Store data
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13) CPU INTERNAL RAM TEST 15) AD CONVERSION PORT TEST 1 1 Key operation Key operation 160 3 122 3 CA/AT CA/AT 2 Test procedure 2 Test procedure The test program tests internal RAM (10 Kbytes) of the CPU. The test program displays the voltage of each AD conversion port. The contents of memory must be stored before and after this test. RAM (00400H ~ 02BFFH area) is tested in the following procedure. Display a) Store data in the test area. OP display b) Write “00H” = TM SRV 160 c) Read and compar
