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Y108540-8

Service Manual

4-19

4.14 BUZZER CIRCUIT

The buzzer is activated by signal P141 provided by the CPU. This normally Low signal goes High on 2 conditions:

• On an error tone, P141 goes High until the error condition is cleared.
• On a key pip tone, P141 goes high and then returns to its Low State.

This pulse is of an extremely short duration.

4.14.1 BUZZER TROUBLESHOOTING

PROBLEM

CORRECTIVE ACTION

The buzzer does not

Check the voltage at point (1) in the figure above:

sound when [Feed]

•

If DC +30.0V is not correctly output, check the power supply circuit.

is pressed.

•

If DC +30.0V is correctly output, replace the mainboard.

Fig. 4-18

Buzzer_ON

4.7K

R51

BZ1

BUZZER

VDRW

DTC143EKA

(1)

Содержание ECR 6800

Страница 1: ...ECR 6800 6900 6920F Cash Register SERVICE MANUAL Code Y108540 8...

Страница 2: ...www olivetti com Copyright 2008 Olivetti All rights reserved WARNING Danger of explosion if the batteries are not replaced correctly Replace the batteries with the same type or equivalent as suggeste...

Страница 3: ...t two chapters describe the operating functional checks and maintenance procedures Chapter 3 describes the disassembly and reassembly procedures while Chapter 4 gives troubleshooting repair informatio...

Страница 4: ......

Страница 5: ...LOCK 2 6 2 3 4 ECR 6920F CONTROL KEYS 2 6 2 4 PRINTER COMPARTMENT 2 7 2 4 1 LOADING THERMAL PAPER ON THE ECR 6800 6900 2 7 2 4 2 LOADING THERMAL PAPER ON THE ECR 6920F 2 10 3 CASH REGISTER DISASSEMBL...

Страница 6: ...SPLAY TUBE CHARACTERISTICS 4 12 4 10 1 CONNECTOR PINS 4 13 4 11 ECR 6800 6900 KEYPAD 4 14 4 11 1 KEYPAD TROUBLESHOOTING 4 14 4 11 2 KEYPAD CIRCUIT 4 15 4 12 ECR 6920F KEYPAD 4 16 4 12 1 KEYPAD TROUBLE...

Страница 7: ...PLU Pages 15 clerk IDS allowing monitoring of individual clerk sales An optional Clerk Security System with security codes and special functions authorized on a per clerk basis Electronic journal with...

Страница 8: ...example in a restaurant Four ordinary tax rates and four alternative tax rates Restaurant guest management feature that totals the items ordered by a determinate guest at a table party Restaurant div...

Страница 9: ...th exchangeable transaction and caption programming keypad sheets installed 3 Cash drawer with lock and item deposit drawer 7 8 ECR 6920F External Components 7 7 Power cord 8 Control lock 9 Printer co...

Страница 10: ...1 W Operating 38 5 W Operating Temperature 32 104 F 0 C 40 C Dimensions 328 5 mm W x 425 mm D x 284 mm H Weight 6 1 Kg 13 45 lbs ECR 6900 Technical Characteristics Type Electronic cash register with c...

Страница 11: ...er is stored in extreme hot or cold temperatures below 32 degrees or above 104 degrees Fahrenheit allow the temperature inside the cash register to reach room temperature before turning it on 4 DO NOT...

Страница 12: ......

Страница 13: ...wing these guidelines 1 Place the cash register on a level stable vibration free and dust free surface Make sure it is near a power outlet compliant will the latest safety standards 2 Plug the cash re...

Страница 14: ...c entry on the receipt 11 Registers sales that are put on credit such as a debit card or on a credit card that is alternative to the one used for Charge tenders 12 Registers sales paid by check 13 Sub...

Страница 15: ...t have been entered from right to left 25 Subtracts an item that is returned for refund 2 2 2 ECR6800 6900 CONTROL LOCK AND KEY This control lock key must be properly positioned to operate the cash re...

Страница 16: ...nfirms an entered clerk number 5 As the Guest key enters the number of guests atadeterminatetable AstheTrayTL Traykey provides the order total for a determinate guest tray in the party 6 As the Divide...

Страница 17: ...ts 1 through 5 to enter single or multiple item sales to a particular department When pressed after registers to Departments 6 through 10 23 Enters a decimal point for defining product quantities with...

Страница 18: ...r programming the cash register s captions the caption program ming keypad can also be used to program all of the cash register s operational features 2 3 2 ECR 6920F CAPTION PROGRAMMING KEYPAD FUNCTI...

Страница 19: ...Make sure the cash register is plugged into a grounded power outlet 2 Unlock open and remove the printer compartment cover then remove the plastic journal winder spindle 3 Release and lift the clamshe...

Страница 20: ...clicks into place 7 Replace journal winder with wheel to right of compartment 8 Pass the edge of the customer receipt through the receipt window on the compartment cover 9 Insert the edge of the paper...

Страница 21: ...sm Note If the paper does not feed properly check the alignment of the paper in the slot and or for the straight edge on the end of the paper roll 11 If you are loading a journal record slide edge of...

Страница 22: ...move the plastic journal winder spindle 3 Release and lift the clamshell mechanism as shown in the following figure 4 With a pair of scissors cut the end of the paper tape to create a straight even ed...

Страница 23: ...clicks into place 7 Replace journal winder with wheel to right of compartment 8 Pass the edge of the customer receipt through the receipt window on the compartment cover 9 Insert the edge of the paper...

Страница 24: ...sm Note If the paper does not feed properly check the alignment of the paper in the slot and or for the straight edge on the end of the paper roll 11 If you are loading a journal record slide edge of...

Страница 25: ...ing with any type of operation on the machine make sure that the cash register s power cable is unplugged from the electrical outlet 3 2 CASE DISASSEMBLY REASSEMBLY Remove the printer compartment cove...

Страница 26: ...thefigurebelow torelease the securing tabs 2 of the case from the machine frame Reassembly To reassemble the case proceed with the disassembly procedure in reverse order making sure to properly fit th...

Страница 27: ...former cable connector 2 the memory backup battery power supply cable connector 3 the keypad flat cable connectors 4 the USB port connector 5 and the serial port connector 6 Remove the six screws 7 th...

Страница 28: ...ormerconnector 3 Power supply connector 4 USB port connector 5 Serial port connector 6 Cash drawer sensor connector 7 Memory backup battery power supply connector 8 Keypadconnectors 9 Control Key conn...

Страница 29: ...Y108540 8 Service Manual 3 5 3 3 2 INTERFACE CARD CONNECTORS ECR 6900 6920F ONLY 1 Serial interface 2 USB interface 3 USB cable from mainboard 3 Fig 3 6 2 1...

Страница 30: ...er lift it gently and turn it to one side Be careful not to detach the connection cables Disconnect the Control Key cables 1 from the mainboard Disconnect the printer s two flat cables 2 from the main...

Страница 31: ...Y108540 8 Service Manual 3 7 Reassembly To reassemble the keypad control switch assy follow its disassembly procedure in reverse order 1 Remove the 15 screws 1 that secure the keypad Fig 3 8 1 1...

Страница 32: ...Manual Y108540 8 3 5 OPERATOR DISPLAY CLIENT DISPLAY ASSY DISASSEMBLY REASSEMBLY 1 2 Fig 3 9 Disconnect the operator client display connector 1 from the mainboard Disconnect the two client display co...

Страница 33: ...vice Manual 3 9 Remove the two screws 3 that secure the operator client display Reassembly To reassemble the operator display client display keypad assy follow its disassembly procedure in reverse ord...

Страница 34: ...ter case from the machine frame as explained in the related section of this chapter lift it gently and turn it to one side Be careful not to detach the connection cables Disconnect the journal rewind...

Страница 35: ...assemble the journal rewind motor follow its disassembly procedure in reverse order Remember to refit the rewind motor ground ring Widen the two tabs 3 that hold the journal rewind motor 4 in the dire...

Страница 36: ...ace it If fuse 1 is intact disconnect the transformer connector 1 from the mainboard Reassembly Toreassemblethetransformer followitsdisassemblyprocedureinreverseorder Duringthisphaseremember to reatta...

Страница 37: ...er lift it gently and turn it to one side Be careful not to detach the connection cables Disconnect the electromagnet cable connector 1 from the mainboard Refit the machine case secure it and then gen...

Страница 38: ...of the cash drawer in the direction of the arrows shown in the following figure Widen the cash drawer opening motor s securing claw 4 in the direction of the arrow in the figure below Remove the moto...

Страница 39: ...r If the problem persists main board replace the main board The cash register does not Make sure that the cash register Plug the power cord to power on is plugged into a working electrical a working e...

Страница 40: ...cash register The cash drawer movement may be Remove any foreign object that blocked so it does not move may block the movement of freely the cash drawer Check the electrical connection Replace the el...

Страница 41: ...ay Interface Drawer ECR6800 Stroke K B Union Jack x1 NA DSCA 3B 8C ECR6900 Stroke K B Union Jack x2 RS232C x1 USB x1 DMCA 4B 8C ECR6920F Flat K B Union Jack x2 RS232C x1 USB x1 DMCA 4B 8C 4 2 1 BLOCK...

Страница 42: ...ered by EC11 a 15000uF capacitor The resulting DC voltage is about 15 5V applied to the collector of Q10 a 2SD1415 transistor This base voltage is controlled by ZD2 This emitter voltage is 7 6V Fig 4...

Страница 43: ...output correctly check the continuity of fuse F2 If OPEN go to the step below If NOT OPEN check the transformer section 4 3 Replace fuse F2 If F2 opens again replace the mainboard If F2 does not open...

Страница 44: ...ac Type Slow brow Fig 4 3 4 4 1 TRANSFORMER TROUBLESHOOTING PROBLEM CORRECTIVE ACTION No power no display Check the themal fuse check for AC13 0V at pins 1 and 3 AC24 0V at pins 2 and 3 AC26 7V at pin...

Страница 45: ...by comparison of supply voltage and detection voltage of low power supply detector LVI The external and internal resets have no functional differences In both cases program execution starts at the ad...

Страница 46: ...e interrupting capability of low voltage circuit in the CPU When compared to VBB and VLVI VBB VLVI when the voltage drops VBB VLVI when the voltage rises INTVLI is generated The VLVI of power supply v...

Страница 47: ...nd client rear displays are connected in parallel Fig 4 6 4 8 1 WINDING MOTORTROUBLESHOOTING PROBLEM CORRECTIVE ACTION Thewindingmotordoes Check the voltage at point 1 in the figure above with the Fee...

Страница 48: ...SG3 KS3 17 SG4 KS4 18 SG5 KS5 19 SG6 KS6 20 SG7 KS7 21 SG8 KS8 22 SG9 KS9 23 SG10 KS10 24 SG11 KS11 25 S12 K12 26 S13 G16 27 SG14 GR15 28 SG15 GR14 29 SG16 GR13 30 SG17 GR12 31 SG18 GR11 32 VDD 33 VEE...

Страница 49: ...DL_9G VFDL_8G VFDL_7G VFDL_6G VFDL_5G VFDL_4G VFDL_3G VFDL_2G VFDL_1G VFDL_r VFDL_n VFDL_m VFDL_k VFDL_j VFDL_h F1 F1 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NC NC com DP F2 F2 d2 d1 c b a1 a2 f k r g m h n e...

Страница 50: ...6920F The ECR 6800 has just one tube of the same display device Fig 4 9 4 9 1 DISPLAYTROUBLESHOOTING PROBLEM CORRECTIVE ACTION No display Check the voltage at points 1 and 2 in the previous figure po...

Страница 51: ...ent I c Ef 3 9 Vac mA 1 10G ec 23 0 Vp p eb 23 0Vp p 7 0 14 0 Anode Current I b Ef 3 9 Vac 7 5 15 0 mA 1 10G ec 23 0 Vp p eb 23 0Vp p Luminance L Ef 3 9 Vac 290 580 cd m G ec 23 0 Vp p 85 170 fL eb 23...

Страница 52: ...37 27 17 07 48 38 28 18 08 49 39 29 19 09 4A 3A 2A 1A 0A 01 4 11 1 KEYPADTROUBLESHOOTING PROBLEM CORRECTIVE ACTION None of the keys work Replacethemainboard Only a specific key Check the lead wire doe...

Страница 53: ...rix ECR 6800 ECR 6900 stroke keypad Fig 4 13 40 30 41 31 42 32 43 33 44 34 45 35 46 36 47 37 48 38 20 21 22 23 24 25 26 27 28 10 11 12 13 14 15 16 17 18 01 01 02 03 04 05 06 07 08 KEY RTN4 KEY RTN3 KE...

Страница 54: ...75 85 95 A5 C5 D5 E5 F5 4 12 ECR 6920F KEYPAD The ECR 6920F keypad shown in the following figure consists of stroke keys Fig 4 14 Fig 4 15 Key layout The following table provides the hexadecimal code...

Страница 55: ...RETURN1 RETURN0 B2 B3 B4 B5 10 11 12 13 14 15 20 21 22 23 24 25 30 31 32 33 34 35 40 41 42 43 44 45 50 51 52 53 54 55 60 61 62 63 64 65 70 71 72 73 74 75 80 81 82 83 84 85 90 91 92 93 94 95 A0 A1 A2...

Страница 56: ...the voltage at point 1 in the figure above If the reading is 5 0V replace the mainboard If the reading is 0V go to the following step Check the voltage at point 2 in the figure above If the reading is...

Страница 57: ...tone P141 goes high and then returns to its Low State This pulse is of an extremely short duration 4 14 1 BUZZER TROUBLESHOOTING PROBLEM CORRECTIVE ACTION The buzzer does not Check the voltage at poin...

Страница 58: ...ternal RAM for back up voltage Battery characteristics Type SUM 3 x 3 pcs Voltage 4 5V 4 15 1 BATTERYTROUBLESHOOTING Before proceeding with battery troubleshooting make sure that the backup batteries...

Страница 59: ...s of data bus A8 A11 Multiplex bus P54 through P57 consists of data bus A12 A15 Multiplex bus P10 consists of data bus A16 Multiplex bus P11 consists of data bus A17 Multiplex bus P12 consists of data...

Страница 60: ...activates the heating elements in accordance with the printing data stored in the latch register Each 144 dot block for LTPC235 are printed Sensor The cash register printer has a head up sensor and a...

Страница 61: ...1 of the next figure or does not feed paper If this voltage is output correctly replace the mainboard or the printer If this voltage is not output correctly check the power supply circuit Printing is...

Страница 62: ..._LAT DST2 DST1 C56 0 1uF M_PH1 M_PH3 M_PH2 M_PH4 P_SEN R52 47K R8 10K VCC C72 470pF M_PH1 M_PH3 M_PH2 M_PH4 R25 100 R26 100 R27 100 R28 100 R29 100 P_DAT P_CLK P_LAT DST1 DST2 C58 0 1uF C1 100pF C2 10...

Страница 63: ...rinter Power Voltage AI GND PD AI AD I L 7 61 ANI7 I O P_TH Printer Head Thermista AI VCC PU AI AD I L 0 46 INTP1 I O PU RAM_CS SRAM CS O VBB PU O H O H 1 41 INTP2 OCD1A I O PU RD SRAM RD O O H O H 2...

Страница 64: ...O L 2 78 SCKA0 I O PU DSP_CLK Display Controller Clock O O L O L 3 77 SIA0 I O PU DSP_CS2 Display Controller CS2 O O H O L 4 76 SOA0 I O PU DSP_DATADisplay Controller Data O O L O L 5 75 STB0 I O PU...

Страница 65: ...G 19 A1 11 Y1 9 A2 13 Y2 7 A3 15 Y3 5 A4 17 Y4 3 U4B 74VHC244 IF_SEL IF_SEL TXD RTS RXD CTS RS_TXD RS_RTS RS_RXD RS_CTS U_TXD U_RTS U_RXD U_CTS VCC C59 0 1uF 1 2 3 4 5 6 7 8 CN4 B8B PH K S BCR RS232C...

Страница 66: ...11 DQ1AN1 64 U1 M38K07M4L 317HP U0 R19 27 R21 1 5K R20 27 1 2 3 4 L5 DLP31SN221SL2 R11 4 7K R5 100K R17 0 R18 560K 1 2 3 4 FG CN2 UBB 4R D14T 4D C6 0 1uF C5 0 1uF C4 0 1uF C3 0 1uF R16 0 L1 BLM18PG121...

Страница 67: ...he machine works properly or not This software is already built into the machine and is always ready to boot by following the related instructions It is also useful to run the diagnostics software aft...

Страница 68: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 02 2008 1ST EDITION 68 Y108540 8...

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