"service manual"
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1. CONN DIP 3P 2 5 5267 03A PB FREE 1 PN5 CONN DIP 2P 2 5 53052 0210 PB FREE 1 PN HOUSING DIP 90059 0014 PB FREE 2 JT6 JT7 HEADER 3P 5548 3A PB FREE 2 JP6 JP CONN SMT 22P 1 0 52271 2290 1 PN6 CONN DIP 4P 2 0 B4B PH K S 1 PNI SW 150MA 50V SMT NPN 25C4738 TE 85R PBX 3 TR4 TR2 TR3 DAR 2 5A 80V SMT NPN 25D2261 TD E 20384 1 TRI TR9 TR8 TR6 SW 500MA 15V SMT PNP 25A1145 6 TL E 8 TR TRS TRI2 TRIO TRI RN51 RN50 RN52 RN53 RN54 RN48 4 1 4 SMT 3216 ER 8GEYJ 47RV 16 N we RN58 RN59 RN60 RN61 RN62 RN63 RN64 1K 1 10 CER 5 1608 ER 36EYJ 102V PB FREE 2 RN38 RN39 RNB RN3 RN15 RN18 RN9 RN17 RNI2 RN11 HN 10K 1 10 SMT 1608 ERJ 36EYJ 103V PB FREE 19 RNI RN2 RN16 RN14 RNS RNG RN4 RN55 RN13 RN43 22K 1 10 SMT 1608 ERJ 3GEY 223V PB FREE 1 RN42 3 3K 1 10 SMT 1608 ERJ 36EYJ 332V PB FRE 1 RN31 330K 1 10 SMT 1608 ERJ 3GEYJ 334V PB FREE 2 RN57 RN44 E RN32 RN35 RN33 4 7K 1 10 SMT 1608 ER 3GEY 472 V PB FREE 5 RN34 RN36 5 6K 1 10 SMT 1608 ER 3GEY 562V PB FREE 1 RN37 RN21 RN27 RN25 2 26 1 10 SMT 1608 ERJ 3GEY 222V PB FREE 9 RN26 RN20 RN19 RN24 RN22 RN23 22 100K 1 10 SMT 1608 ER 36EYJ 104V PB FREE 1 RN45 220 1 4 SMT 3216 RMC 18221 R PB FREE 2 RN30 RN29 1M 1 10 SMT 1608 ERJ 3GEYJ 105V 1 RN40 CHIP FUSE 3 5A SST3 5 PB FREE 1 SN1 32 168KHZ 05 0327068 KB 1 YN2 BUZZER DIP KBS 13DB 4P 2 1 YN3 COI2. FRE 3 RA3 RA2 RAI PZ 255 PCB MAIN CEM 3 2F 142 165 1 PCBI 25V 6800UF ELE D KME KME25VB6800ME PBFREE 1 CN25 50V 22PF CER S 1608 1608C0G1H220 PBX 2 CN30 CN31 CN37 CN4 CN9 CN2 CNT CN15 CNIL CN3 CN47 50V 0 TUF CER 5 1608 EC IVF1H1042 PB FREE 16 CNB CNL CN19 CN6 CN12 CNS CN17 50V 33PF CER S 1608 ECJ 1VC1H330 PB FREE 2 CN29 CN28 CN44 CN41 CN42 SOV 4TOPF CER S 1608 EC 1VC1H471 PB FREE 6 CM3 CN39 CNAO 50V 0 01UF CER 5 160 ECJ IVF1H1032 PB FREE 3 CN35 CN38 CN36 50V 1UF ELE 5 5 50CE1FS PB FREE 1 CN27 10V 100UF ELE SS EEELAAIOISP PB FREE 1 CN26 16V 10UF ELE EEEICAI00SR PB FREE 2 CN45 CN33 50V 0 01U FIL S 3216 ECHULH103 X5 PB FREE 3 CN23 CN21 CN22 16V 1000UF ELE D LOW LXZ16VB1000M 20 PBX 1 CN32 DIODE STACK 4A S4VB20 5000 1 BDI DN15 0110 DN SW 100MA 80V S 1608 MA2 111 PB FREE 11 cis DN12 DN5 DN6 DN9 DN8 SCHOTTKY DIODE 3A 31DQ06 1 DN18 POW 1A 50V D IN4001 M1 PB FREE 1 DNI 21 58D 100MA 20V S 1608 MA22D14 PB FREE 4 4 RFGU T0 220 5V KAT805ETU 1 C2 RAM SOP32 1M KM681000CLG TL PBX 1 C8 RESET SMT 4 6V TO 89 5 80846KNUA D2C T26 1 C4 REGU T0220 3 54 P01C63032FZ PBFREE 1 03 DRV SOP14 LB1836 LB1836ML TLM E PBFRE 1 C10 MASK CPU PZ 255 APL V UPD784214AGF 1 CI SOP 74HC1G00 1 GATE 74HC1G00GW 1 09 TR ARY NPN X8 500MA ULN2803L S18 R 1 C12 FFC DIP 21P 1 25 52044 2145 1 PN9
3. for the operator It displays prices subtotals change due status codes and so on This display can show up to eight digits 2 Rear display as same as the front display 3 Printer SII CO LTD single station thermal printer Model LTP 8235B Specification Actual use value Drive voltage 7V Printing column Symbol Max 24 12x24 Printing speed Max 10 lines sec Average 7 lines sec Paper roll size 56 5 57 5 mm 2 22 2 26 inches Sensor Lack of paper sensor over hot sensor 4 Port A RS232 Port adopt the RJ45 terminal male port RS232 Port can be connected to communicate with the PC and the Bar code reader SL Power supply adopt single route output transformer input 220V AC or 240V AC 10 50Hz output ACIIV 2A 6 Save data dry battery 7 Keyboard Type Raised type only Key number 1 feed key There are 38 free keys can be set The CASH TEND key is a double size key each key has been preset a function with silk screen name and attaches key cap Control lock 5 different modes P LO RO X Z 8 Drawer Model N26 or 3 9 Software supports language for printing and display English 2 Function Specification 1 Support the setting of date time machine number receipt number setting password training password report number and so on 2 Department number 16 there are 8 direct departments number by pressing the Department Shift Key the department number can be achieve 16 1 Name 16 characte
4. 00 to O7 Date Inputs Outputs cs Chip Select OE Output Enable WE Write Enable Vss Ground Vee Power Supply Classify by common malfunctions and dispose of method 1 Entire machine exceptionally Make sure the lock Is on the P position then power on v Entire machine does not have the response v 5 Input voltage Is OK or Not Nr REES voltage scope Y Y The fuse Is OK or Not NIB d according to the request Y Y Open the upper cover y Are the power line and transformer Connect the power line and N gt connection OK or Not the transformer Y v Transformer output is OK or Not Nr Replacetransformer 4 Y Return the machine to original state D System reset Y LED displays or Not lt y N Mainboard has been replaced or Not N Replace mainboard y Y LED module has been replaced or Not N Replace LED module Y Y Keyboard has been replaced or Not N gt Replace keyboard gt d Y Return the machine to original state A e Y System cl ear gt Check print is OK or Not N gt Replace printer gt Y Check completion Y Resetting the replacement parts Y Check confirmation and return the machine to original state Y examine and repair comp
5. 288MHz OUT 19 TIOO IO Kai 39 X1 12 288MHz IN 20 TIO1 IO KS8 40 GND 14 41 XT2 32 768KHz OUT 71 PCL I O nouse 42 XTI 32 768KHz IN 72 BUZ 1 0 BUZZER 43 RESET RESET 73 SIO SDAO VO PRT LATCH 44 INTPO IO EU JP 74 SOO VO PRT_DAT 45 INTP1 VO PRT PS 75 SCLO SCKO IO PRT SCKO 46 INTP2 NMI I O POWER FAIL PF 76 AO VO AO 47 INTP3 VO no use 77 Al VO Al 48 INTP4 UO UPDATE KEY 78 A2 VO A2 49 INTPS VO UPDATE 79 A3 IO A3 50 INTP6 VO F_ RESET 80 A4 IO A4 51 AVDD 81 A5 IO AS 52 AVREFO 82 A6 VO A6 53 ANIO Input KRI 83 A7 IO A7 54 ANII Input KR2 84 ADO IO DO 55 AND Input KR3 85 ADI IO DI 56 ANI3 Input KR4 86 AD2 VO D2 57 ANI4 Input KRS 87 AD3 VO D3 58 ANIS Input KR6 88 AD4 IO D4 59 ANI6 Input PRT_TH 89 ADS IO D5 60 ANI7 Input BT 90 AD6 IO D6 61 AVSS 91 AD7 VO D7 62 ANOO VO LED_g 92 AN IO A8 63 ANOI VO LED h 93 A9 IO A9 64 AVREFI 94 A10 VO 0 65 RXD2 SD VO RXDI 95 All IO All 66 TXD2 SO2 IO TXDI 96 A12 IO A12 67 ASCK2 SCK2 VO no use 97 A13 IO A13 68 RXDI SII VO RXD 98 A14 IO 4 69 TXD1 SO1 IO TXD 99 A15 I O A15 70 ASCKI SCK1 VO no use 100 VSS2 15 8 RAMD IC3H HM628512BLTT Series O 1 2 3 4 5 6 f 8 9 1 1 1 1 1 1 1 DOB COND Pin Function A0 to A18 Address Inputs 1
6. HH RN45 100K RN30 220 1 4W N36 N38 0 010F IER 52271 2290 Fig 9 12 6 Communication circuit As shown in Fig 10 this cash register adopts RJ45 connection Port IC1 MAX202SE is used to convert level between TTL COMS and the RS232 thus achieve the COM communication IC1 T5V 1 16 NI 2005 D 1UF 4 2 45V 4 6 N2 N4 PN2 D 1UF D 1UF a 0 1 RTS IE 3 CTS 2 4 GND CAD u Ti OUT 14 5 DTR T2 OUT pev R2 IN 8 RXD MAX202CSE 7630 0808UA Fig 10 13 7 CPU IC1 Resource allocation s Jm n a 2 06 Jan WN uua N ou adh bk oO HN OM NN N Tx F2 ASCK2 SCK2 O2 2 PIN NAME VO DESCRIPTION a PIN NAME VO DESCRIPTION 1 A16 IO Al6 21 EXA VO KS9 2 A17 IO Al7 22 Vpp TEST 3 A18 I O A18 23 VO LED a 4 A19 IO Al9 24 VO LED b 5 RD IRD 25 VO LED c 6 WR WR 26 VO LED d 7 W AIT no use 27 VO LEID e 8 ASTB no use 28 VO LED f 9 VDDI 29 RTPO IO PRT M A 10 TIS TOS VO KSI 30 RTP1 IO PRT MA 11 TI6 TO6 VO KS2 31 RTP2 IO PRT MR 12 TI7 TO7 VO KS3 32 RTP3 IO PRT_M B 13 TI8 TO8 IO KS4 33 RTP4 IO PRT DSTI 14 TOO VO AS18 34 RTP5 IO PRT DST2 15 TOI I O ASI9 35 RTP6 IO PRT VHH ON OFF 16 TO2 I O AS20 36 RTP7 VO DRAWER 17 TII VO KS5 37 VDD2 18 TI2 VO KS6 38 X2 12
7. L 100UH DIP TC131M 4A 8026 B20 1 YN4 XTAL SMT 12 288MHZ SMD 49 12 288MHZ PBX 1 YNI HEAT SINK 1 HS1 DSP UNIT PZ 255 FOR PZ 255 2 JP8 JP9 DISPLAY SUPPORT F FOR PZ 255 2 DISPLAY SUPPORT R FOR PZ 255 2 PZ 255 230V PROCESS FOR PZ 255 1 AC CORD EUROPE 2P FOR ERP 2P HO5VV F 1 O POWER TRANSFORMER FOR PZ 255 230V 1 CONTROL LOCK SWITCH 1LB3A001 PB FREE 1 KEYBOARD ASSY FOR PZ 255 1 THRMAL LINE PRINTER LTP8235B 1 O CONTROL KEY SET 21834201 OP MA 2 G WIRE L 180 3X4 UL1015 18 GR 1 BATTERY UM 3 UM 3 3 o RECEIPT CUTTER FOR PZ 1 1 DISPLAY FILTER FOR PZ 1FB 1 e UPPER COVER FOR PZ 1 FB 1 PRINTER COVER FOR PZ 1 FB 1 BOTTOM COVER FOR PZ 255 1 BATTERY CASE ASSY FOR CX 1 1 NP33 DRAWER FOR CH 1 NP33DR 1 a CONTROL LOCK PLATE FOR PZ 255 1 O EARTH BRACKET FOR PX 1 1 BATTERY BOX COVER FOR PZ 255 1 PRINTER BASE FOR CH 1 1 MAIN PCB SUPPORT FOR PZ 255 1 23 TOWA Business Precision Electronics Zhong Shan CO LTD Addl Zhong Shan Torch High Tech Industrial Development Zone GuangDong China Tel 0760 3382308 Fax 0760 5318053 24
8. Service Manual AX 100 Black TOWA Business Precision Electronics Zhong Shan CO LTD 2007 07 Table of contents T Product Sp cifications EE 2 1 General e 2 2U Eunetion Specification s o t E IR ed tite ato e o RE E he 3 NEE 6 1 1 Control lock and its f nction 4 i t t RR rt E TR ege 6 2 System clear En 6 TREIE 6 II Mod le connection diagram EE 7 IV Circuit mstruetiOn 1 fare trt ee dos cede ren enh Ro ce erbe reso E iu suede 7 11 Power Supply circuit seren verten terein En 7 2U Reset and power failure Eet SS ie eU Ak Cp one ed OR de hes 9 3 Front display control and keyboard scan circuit 10 4 R ar display control Ikea 12 5 1 Print Circulta A A itis A eere te DET rece dures 12 61 Communication CIreuit s s ao tret cdc te eie teder ERINNERT sel shi 13 7 C PU ICI Resource allocation i one rre et reed rere neret SA 14 SH LRAMPIGSL 2 rite ep Duet diede iieri eene 16 V Classify by common malfunctions and dispose of method 17 O 1 Entire machine exceptionally en nnonveneenervenvenveneenenvenvenvenenvenvenveneenenvenvenvenenvenverenvenvenen 17 U 2J Data exceptionally nent ted ans ote ns a and tin ez 18 VMI PCBl yout diagram Top layer ttds be cant ced tele trie i eth teet tte es 19 MIE Bee 20 Product Specification 1 General Specification 1 Front display 8 digits 8 segments LED Including decimal point Your cash register has one 8 segments displays
9. e below 4 7 V Vout output low level At this time the PF signal comes into being CPU will execute power off process Fig 5 3 Front display control and keyboard scan circuit This cash register front display adopts 8 digits DN1 DN2 8 segments LED As shown in Fig 6 The front display LED of voltage is provided by 2 2V 2 4V DBI HL PAH Sa DA Fig 6 10 As shown in Fig 7 this cash register keyboard is line row scanning type keyboard it adopts low electricity level signal to scan KS1 KS9 lines Return signal by KR1 KR5 lines retrace C7 C5 C40 C3 C2 C1 are the lines used to scan P RO X Z lock signal C6 is common signal back line by lock PREZ Lock signal line Keyboard line array scan signal line i i a m E K ME N mm vw e rt mm e Ene ei wa ol mei a ei D un Al A Al uo p e zl i zl Gel zl Seil 5 preoq amp ay Aq w eq auf PUES Common signal line back by Lock PN3 4 Rear display control circuit As shown in Fig 6 this cash register front display adopts 8 digits DN1 DN2 8 segments LED The rear display LED of voltage is provided by 2V 2 2V G1 G8 are selection signals sa sg dp are segment signals 5 Print circuit This cash register uses thermal printer As shown in Fig 9 VHH provides drive voltage for the internal motor of the printer 5V provides drive voltage for heating the printer head The printer work is directly controlled by the CPU Port V
10. he VCC converted by DC DC chip IC PQ1CG3032FZ it will output VHH voltage which provides to the printer ERA e m Fig 1 13 r POICESONIFE THi VHH el S E l 4 Vin 3 Vout E il GTR 5 D She HE E amp ei 585 mi SH IS 4o sl t u 4 GC T cH EKZ I Bl D lef za1aer ze ien WHO EET UA pe dE 47K Fr IH LB ERT VHHOHIOFE MH DODE ARH A TEA Lx 2574738 m Fig 2 1 5 Battery backup circuit The cash register adopts 4 5V dry battery As shown in Fig 3 when power is onl DN17 close Vmm voltage is supplied by 5V The battery is charged up at this time When power supply shuts off DN19 and DN20 close but DN17 open The battery discharges to supply the voltage to Vmm so as to preserve RAM and CPU data The BT signal is connected to CPU 1 0 port for checking the voltage of the battery DN19 DN20 t MAZZDIA Mazzpj4 RENS RNS MAZZDI4 1 Fig 3 2 Reset and power failure circuit As shown in Fig 3 after the machine power on the IC4 S 80846 output high level After the high level signal pass through the transistor circuit then the reset signals of the CPU RESET come into being Because of the CN27 effect the CPU RESET signal will be 6 ms later than RESET signal 5 El El El Ai CN33 10211417 pat Isar a 11 TM S S0646KNIA rw Tone Z ZZZ Fig 4 As shown in Fig 5 after power off When the IC4 S 80846 input voltag
11. ing 11 Support transaction name setting 12 Report function Department group sales report read report Full department sales report read report Individual PLU sales report read report Full PLU sales report read and reset report Individual PLU link department sales report read report Full PLU link department sales report read report Individual clerk sales read and reset report Full clerk sales read and reset report Full report read and reset report Drawer report read and reset report Cash Declaration report daily reset report Hourly Report Training Report 13 Payment type Supports Cash Check Credit card Keep accounts Foreign currency and Coupon payment 14 Other functions Cancel operation VOID operation Return merchandise operation Copy receipt Time or date display Report count function XI Daily read report X2 Periodical read report Z1 Daily reset report Z2 Periodical reset report Non sales count Half height fonts print Clerk login and logout function Single item sales function Multiplication function number price mode Calculator function addition subtraction multiplication division Department and PLU repeat entry function Barcode enter and look for PLU price PLU number and Barcode number input RA PO operation Electronic journal function Initialization 1 Control lock and its function La The control lock allows you to change the cash register mode Yo
12. letion 20 Data exceptionally battery voltage does It above 3 5V Notice This cash register adopts standard 125V 3 5A fuse Before replacing the fuse please cut off the power supply the new fuse parameter must be as same as the machine required When assembly just twist the fuse properly to its position do not put with strong force in order to avoid damaging its internal structure This cash register dry battery is 4 5V please pay attention when you replace the dry battery do not mistake the dry battery polarity in order to avoid bad consequence If it comes across insolubility problem as above please contact the manufacturer 18 PCB layout diagram Top layer on H oo aop bo d 8 E H IE E au 89 List of entire machine PARTS NAME QTY NOTE DISPLAY UNIT FOR PZ 255 1 PZ 255 PCB DSP FR 1 1F 25 120 1 PCBI JPCABLE 16P 2 0 50L Eon 1 PNI TASC SUS LF P 2 0 LED YELLOW HLBW452G A21 2 DN2 DNI 5 0 BOARD UNIT FOR PZ 255 1 0 PZ 255 PCB 5 D FR 1 IF 30 45 1 PCBI CN3 CN4 CNI 50V 0 1UF CER S 1608 EC IVF1H1042 PB FREE 5 CN CNS DRV SOP16 MAX202 MAX202CSE PB FREE 1 ICI UL2651 P AWM 16 x 26AWG J PCABLE 4P 2 0 145L TASC SUS LE P 2 0 1 PNI MODULAR DIP 8P 1630 0808UA 1 PN MAIN P C B UNIT FOR PZ 255 1 O ARY 10K X 4 3 3MM MNR14E0ABJ103 PB
13. mmed and erase all sales information in the register 3 System reset It is possible at some point in the programming or operation of the cash register due to a wrong entry to cause the system to go into a loop Use the following sequence to return to an operating mode Current transaction data will be lost but you will not lose any of the program or sales data The only data lost will be any sale not yet finalized by a method of payment 1 Turn the manager s key to the L position and remove the power cord from the outlet 2 Turn the manager s key to P position 3 Plug the power cord into the outlet 4 Turn the manager s key to R position Note Current transaction data will be lost but you will not lose any of the program or sales data Module connection diagram PZ 255 Circuit instruction 1 Power supply circuit This cash register power is supplied by transformer Input 220V AC or 240V AC 10 50Hz 0 15A Output ACIIV 2A 1 11 VCC As shown in Fig 1 AC11V power supplied by transformer is input to mainboard through PN4 terminal After commuting it will get the stable DC voltage VCC DC 15V 1 21 VCC 13 1V 16 8V Buzzer work voltage 1 3 5V As shown in Fig 1 After the VCC is converted by DC DC chip IC2 7805 T it will 7 output the steady DC 5V voltage which supplies for LED COM CPU Flash and other logic chips 1 4 VHH JAs shown in Fig 2 After t
14. rs 2 Unit price Max can be set up to 8 digits include decimal when in sale can be manually input 7 digits include decimal 3 Flag Flag 1 Assign the department to a group 0 9 Flag 2 Single more item sale allow and negative department Flag 3 High amount lock out HALO It s only effective for the manually input price Flag 4 Set up departments application tax rate info Tax1 Tax2 Tax3 Tax4 4 Other Support periodical report and daily report when the department single transaction amount exceeds 9 digits then a warning will give out quantity 8 digits 4 integer 4 decimal 3 PLU number 200 1 Name 16 bytes 2 Unit price Max can be set up to 8 digits include decimal when in sale can be input 7 digits include decimal 3 Linked department 1 byte 1 16 4 Bar code Max 13 digits 5 Other Support periodical report and daily report when single transaction amount of department exceeds 9 digits then a warning will give out quantity 8 digits 4 integer 4 decimal 4 19 66 1 0 1 SL Tax rate You can set up to 4 types of tax to be added to each item VAT or ADD tax or tax table 6 Clerk 10 I Name 12 bytes 2 Password 4 digits 3 Clerk report content ner sale cash amount check amount credit card amount VOID amount 3 include return and VOID Non add sale amount 70 LOGO Max 5 lines each line max 24 bytes 8 MESSAGE Max 5 lines each line max 24 bytes 9 Support main flag setting 10 Support keyboard sett
15. ur d EE cash register has 5 different modes Conversion mode is the mode in which you e can insert manager key MA or operator key OP in the control lock and shift to Li E any position you need to carry out operation The manager key can choose any T mode while the operator key can only choose L or R position inj The following table shows the modes the cash register is equipped with Mark Mode Name Functions P Program mode Used to programming various cash register functions L Lock mode Used to turn off the cash register This mode disables all operations R Register mode Used for normal checkout operations X Read mode Used to print sales information reports Z Reset mode Used to read and reset the sales informant 2 System clear Before programming the cash register you must clear the cash register s memory Please do not perform the following steps during programming or normal operation These steps will clear all of the settings you have programmed and erase all sales information in the register 1 Turn the manager s key to the L position 2 Remove the power cord from the outlet 3 Turn the manager s key to the P position 4 Plug the power cord while pressing the CLR Key and hold the key down for at least two seconds When you release the key 1 will appear in the display At this point the register has been initialized Notice These steps will clear all of the settings you have progra
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