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Service manual 

ALX 720  

Release 11/2003 

Page 49 

 

Figure 5 Cable print head 

Summary of Contents for ALX 720

Page 1: ...s Contents 1 BLOCK DIAGRAM 2 2 PRINTER CPU BOARD 3 3 PRINTER I O BOARD 8 4 DISPLAY 19 5 DISPLAY ADAPTER 20 6 DISPENSER MAIN BOARD GENERATION I 21 7 DISPENSER CPU BOARD ELECTRONICS GENERATION II 31 8 D...

Page 2: ...Service manual ALX 720 Release 11 2003 Page 2 1 Block diagram...

Page 3: ...en 4 MB J4 Selection Memory J4 closed PROM J4 open FLASH J5 Selection Vcc or A 18 J5 3pole1 2 3 1 2 28 Pin 2 3 32 Pin J8 Selection serial Interface J8 3pole 1 2 3 2 3 RS232 CN2 Connector 2 to I O boar...

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Page 8: ...Loop Rxxx CN16 Sensor foil endS Fxx P6 Pot 6 CN18 Jumper closed P7 Pot 7 Full size label sensor Pxxx CN28 Connection Dispenser P8 Pot 8 Sensor foil end Fxx CN30 TP Material end Mxx P9 Pot 9 CN31 TP Ma...

Page 9: ...ID Description 1 I O board 97315 xx 6 CN19 Head motor CN20 Foil motor CN21 Feed motor CN29 Print head voltage HVxx JP1 Print head voltage J1 28 V AC J2 28 V AC F1 Fuse 10 AT F2 Fuse 1 AT R25 Pot R25...

Page 10: ...th Material 10 255 Sensor in Gap Head open Foil save position lift Pot P4 0 6V an TP CN32 0 Sensor print head Head position CN12 Sensor blocked Print position head down 2 5 V an TP CN32 Hxx 15 Sensor...

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Page 19: ...Maschinen GmbH Hamburg Germany 4 button keypad and display Project ALS 0 ALX710 GND 7 VCC 6 D0 8 D1 9 D2 10 D3 11 D4 2 D5 1 D6 12 WR 3 A0 5 A1 4 U1 HP 1414 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18...

Page 20: ...Service manual ALX 720 Release 11 2003 Page 20 5 Display Adapter...

Page 21: ...Service manual ALX 720 Release 11 2003 Page 21 6 Dispenser Main Board Generation I...

Page 22: ...OUTEN D 0 7 Inhibit T EST 24V1 T EST 24V2 Reset Ready ODC Out OUT OUTEN D 0 7 Inhibit T EST 24V1 T EST 24V2 Reset Ready ODC Out TXD RTS CTS RXD P0 0 7 D 0 7 OUTEN INCS SPEED Reset Powerfail PUNLED TE...

Page 23: ...x ALS3xx CTS RXD RTS T XD 10V TXD RXD CTS RTS CTS_OUT RTS_OUT RXD_OUT TXD_OUT GND VCC GND GND C1 1 C1 3 C2 4 C2 5 T 1 11 T 2 10 R2 9 R1 12 V 2 V 6 T 1 14 T 2 7 R1 13 R2 8 U13 MAX232ECPE C45 1u 16V C46...

Page 24: ...A1 11 2A2 13 2A3 15 2A4 17 1G 1 2G 19 1Y1 18 1Y2 16 1Y3 14 1Y4 12 2Y1 9 2Y2 7 2Y3 5 2Y4 3 U27 74HCT244 1 2 CN36 Pressure switch R64 2k2 R62 2k2 R60 2k2 R58 2k2 1 2 3 4 5 6 7 CN33A 8 9 10 11 12 13 14 C...

Page 25: ...8 VS 2 VRF 9 U3 L6203 C9 220nF C10 100nF D9 BYW98 D12 BYW98 IN1 5 IN2 7 EN 11 GND 6 SENS 10 BOOT2 4 OUT2 3 OUT1 1 BOOT1 8 VS 2 VRF 9 U4 L6203 C13 220nF C14 100nF IN1 5 IN2 6 IN3 7 IN4 8 R C 1 OS C 2 S...

Page 26: ...k00 GL2 RB80C1500 F2 T1 25A C29 4700u 16V VI 1 GND 2 VO 3 U9 LM2940 VI 1 GND 2 VO 3 U8 LM7810 VI 1 GND 2 VO 3 U7 L78S24 VI 1 GND 2 VO 3 U30 L78S24 C38 100uF 16V C77 100nF R103 5k36 F3 T6 3A F1 T4A C41...

Page 27: ...15 16 17 18 19 20 21 CN33C OUTEN G 1 0 I8 8 I7 7 I1 1 I2 2 I3 3 I4 4 I5 5 I6 6 O8 11 O7 12 O5 14 O4 15 O3 16 O2 17 O1 18 O6 13 Vs 9 U6 UDN2983 G 1 0 I8 8 I7 7 I1 1 I2 2 I3 3 I4 4 I5 5 I6 6 O8 11 O7 1...

Page 28: ...65 P17 READY 66 P20 DMARQ0 48 P21 DMAAK0 51 P22 T C0 52 P23 DMARQ1 54 P24 DMAAK1 55 P25 T C1 56 P26 HLDAK 57 P27 HLDRQ 58 PT 0 67 PT 1 68 PT 2 69 PT 3 70 PT 4 71 PT 5 72 PT 6 73 PT 7 74 A0 21 A1 22 A...

Page 29: ...4 D3 7 D4 8 D5 13 D6 14 D7 17 D8 18 CLK 11 CLR 1 Q1 2 Q2 5 Q3 6 Q4 9 Q5 12 Q6 15 Q7 16 Q8 19 U23 74HCT273 1 2 3 4 5 6 CN40 Gapsensor C74 100nF 1 2 U24A SN7407 3 4 U24B SN7407 5 6 U24C SN7407 9 8 U24D...

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Page 31: ...eason How to check it Action to solve problem 1a LED D3 and D4 not lightning No supply voltage Measure supply voltage See trouble shooting main supply 1b Defective or disconnected cable Check cable co...

Page 32: ...Change display if the other ones is working 2d Nothing found Change CPU board 2e Some keys doesn t work Jumper setting not correct Check jumper on display board Place jumper in correct position 3a Er...

Page 33: ...Error message E_10 Voltage regulator defective by over voltage Measure input voltage of board If 28V see troubleshooting transformer 4f Output voltage too high Measure output voltage terminal 28 agai...

Page 34: ...Service manual ALX 720 Release 11 2003 Page 34 Figure 1 Layout CPU board...

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Page 42: ...2 8 Dispenser Motor Driver Electronics Gen II LED Voltage Ready LED Overtemperature 100 on Short circuit 25 on 75 off Both 75 on 25 off Direction Direction NC NC Clock Ready Collector Ready Emitter 48...

Page 43: ...es 1c Nothing found Replace driver board 2a LED over voltage Wrong main voltage selection Check voltage selector See trouble shooting main supply 2b Transformer fault Measure transformer voltage shoul...

Page 44: ...Service manual ALX 720 Release 11 2003 Page 44 9 Cable diagrams Sensor Print head position 45 Centronics cable optional 46 RS232 cable 47 Sensor Material end 48 Cable print head 49 Micro swi 51...

Page 45: ...Service manual ALX 720 Release 11 2003 Page 45 Figure 1 Sensor Print head position...

Page 46: ...Service manual ALX 720 Release 11 2003 Page 46 Figure 2 Centronics cable optional...

Page 47: ...Service manual ALX 720 Release 11 2003 Page 47 Figure 3 RS232 cable...

Page 48: ...Service manual ALX 720 Release 11 2003 Page 48 Figure 4 Sensor Material end...

Page 49: ...Service manual ALX 720 Release 11 2003 Page 49 Figure 5 Cable print head...

Page 50: ...Service manual ALX 720 Release 11 2003 Page 50 Figure 6 Fullsize sensor...

Page 51: ...Service manual ALX 720 Release 11 2003 Page 51 Figure 7 Micro switch...

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