The Speaker Company TTP 248M service manual Memory Card Connector

Page 40

TTP-248M Bar Code Printer Service Manual

 

 

 

 

 

 

 

 

 

 

 

 

 

GND J1

 

 

 

 

1

 

 

 

 

 

 

A2

 

3

 

 

 

 

 

 

A4

 

5

 

 

 

 

 

 

A6

 

7

 

 

 

 

 

 

A8

 

9

 

 

 

 

 

 

A10

 

11

 

 

 

 

 

 

A12

 

13

 

 

 

 

 

 

A14

 

15

 

 

 

 

 

 

A16

 

17

 

 

 

 

 

 

A18

 

19

 

 

 

 

 

 

A20

 

21

 

 

 

 

 

 

A22

 

23

 

 

 

 

 

 

VCC

 

25

 

 

 

 

 

 

A24

 

27

 

 

 

 

CS0

 

 

 

29

 

 

 

 

 

/RESET31

 

RESET

 

/OE

 

33

 

 

 

 

U23/ 28

 

 

 

 

D1

35

 

 

 

 

 

 

 

 

 

 

/OE&/RD

D3

 

37

 

 

 

 

 

 

D5

 

39

 

 

 

 

 

 

D7

 

41

 

 

 

 

 

 

D9

 

43

 

 

 

 

 

 

D11

 

45

 

 

 

 

 

 

D13

 

47

 

 

 

 

 

 

D15

 

49

 

 

 

 

 

 

 

 

 

 

 

 

 

50 PIN_P2

A[1.. 24]

2

 

A1

4

 

A3

6

 

A5

8

 

A7

10

 

A9

12A11

14A13

16A15

18A17

20A19

22A21

24

 

A23

VCC

26

 

 

 

 

 

28

 

 

 

 

CS2

30

 

 

 

 

 

 

 

 

CS3

32

 

/WE

 

 

 

 

 

 

34

 

D0

 

 

 

36

 

D2

 

 

/WEO/DQMLL

38

 

D4

 

 

 

40

 

D6

 

 

 

42

 

D8

 

 

 

44D10

46D12

48D14

GND

D[0.. 15]

Fig. 3.21 Memory Card Connector

B

 

JP33

U11/ 15

 

4

 

3

 

 

U11/ 10

 

2

 

1

 

 

A

 

 

CTSENS

GND

4PIN

 

 

DIGITAL GND

 

CUTTER

 

 

Fig. 3.22 Cutter Connector Circuit

37

Image 40
Contents TTP 248M Table of Content TTP-248M Bar Code PrinterTTP-248M Bar Code Printer Foundamentals about the System Printer OverviewTTP-248M Bar Code Printer Pinter Specification SpecificationCommunication Interface Available Bar Codes Text Specification File Head of Font Fixed 32bytes BF3~4 VF3~4 Specification Types of PaperTTP-248M Bar Code Printer Ribbon Specification Circuit Description MCUMCU MCU PIN Description Page Page Page Page Page Page Page Page TTP-248M Bar Code Printer Reset Circuit Reset CircuitTTP-248M Bar Code Printer Memory System Etro N TechDecoder Circuits Memory Address MapUse by CPU Area Internal I/O Sdram TTP-248M Bar Code Printer Firmware Address Map TTP-248M Bar Code Printer Power Down Sensor VCCTTP-248M Bar Code Printer Print Head GNDMotor System Circuit Stepping Motor PatternTTP-248M Bar Code Printer Sensor Circuits Ribbon Near End Sensor10 Black mark/ Gap Sensor Circuit Peel-off Sensor 11 Peel-off Sensor Circuit Case Sensor Serial Port Circuit GND VDDParallel Port Circuit VDDTTP-248M Bar Code Printer Cutter Drive System 17 Cutter Drive CircuitTTP-248M Bar Code Printer PIN Switch Circuits Connector Circuits21 Memory Card Connector 23 Stepping Motor Connector TTP-248M Bar Code Printer Optional Items Circuits Optional Item---BuzzerMachanism Remove the Covers and LCD PanelLoosen the three screws on Top Left Side Cover Screw LCD Panel Lower Front Cover TTP-248M Bar Code Printer Replacing the Mainboard TTP-248M Bar Code Printer Replacing the Power Supply Unit Belt Ring of Label Rewind Spindle Remove the E-ring of pulley. And then, remove the pulley TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Ribbon Supply Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Label Supply Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Label Rewind Spindle TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Platen Remove the Platen and Left Shaft Bearing TTP-248M Bar Code Printer Replacing Motor TTP-248M Bar Code Printer TTP-248M Bar Code Printer Replacing Print Head Remove the 2 screws these are on the TPH switch plate Remove A.B.C.D in order Loosen M4 screw, knob E and F TTP-248M Bar Code Printer Replacing Gap/Black Mark Sensor TTP-248M Bar Code Printer Reassemble in the reverse procedures after replacing Curly plastic pipe Screws Troubleshooting TroubleshootingCalibrate Gap/Black Mark Sensor Flash / DramTTP-248M Bar Code Printer Self-test Diagnosis Operation ProcedureDram Clear TTP-248M Bar Code Printer Cleaning Print Head Update History No.35, Sec , Ligong 1st Rd., Wujie Township