Sharp YO-470 manuals

Sharp YO-470 Service Manual (75 pages)

Brand: Sharp | Category: Cash registers | Size: 3.53 MB |

English

Table of contents

SERVICE MANUAL

1

CHAPTER 1. SPECIFICATIONS

2

1) Standard keyboard layout

3

2) Key top name

4

⊗ Multiplication key

4

1 Operator display

5

2 Customer display

5

(1) Drawer box and drawer

6

CHAPTER 2. OPTIONS

7

2. Options

8

3. Service options

8

4. Service tools

8

5. Supplies

8

6. Options

9

7. How to use service tools

9

CHAPTER 3. SRV. RESET AND

10

MASTER RESET

10

Fig. 1-1

11

2. Description of main LSI’s

12

2) Block diagram

13

3) Pin description

14

2-2. G.A (MPCA6)

16

1) Pin configuration

16

2-3. CKDC6 (HD404728A91FS)

19

1) General description

19

2) Pin assignment

20

1) CPU (HD64151010FX)

21

(Display-PWB)

21

5. Memory control

22

6. SSP circuit

24

A19 A18 A17 A16 A15 A8 A7 A2

25

7. PRINTER control circuit

26

5) Dot solenoid drive circuit

27

6) Paper feed circuit

27

7) Stamp circuit

27

8) Caution

27

8. Drawer drive circuit

28

TD62308F

28

1) Power on/off sequence

29

2) Key and switch scanning

29

3) DISPLAY CONTROL

29

"h" th digit

30

Display off

30

<Remote keyboard>

31

Reception circuit

32

Transmission circuit

32

CHAPTER 5. TEST FUNCTION

33

KEY TEST SRV

34

[5] Mode switch test

35

[6] Printer sensor test

35

[7] Calendar oscillator test

35

[8] SSP test

35

[9] Drawer open sensor test

35

ABCDEFGH

36

Table pointer

37

[13] Standard ROM test

38

Dot pulse adjusting method

38

[15] Option RAM test

39

[16] Option ROM test

39

CHAPTER 6. DOWNLOAD

40

FUNCTION

40

All data

41

1. Main PWB circuit diagram

42

Gate array (MPCA6)

43

Printer & Senser

44

P-OFF, Dot pulse

45

Power supply

47

Main PWB connector

48

2. Main PWB layout

49

4. Display PWB layout

51

6. POP-up display PWB layout

51

9600~56.7KBPS

52

Infra-red Data Association

52

N7460BH-57

53

10. Option memory PWB layout

54

Key position code (ER-A460)

55

Key position code (ER-A470)

56

13. Keyboard PWB layout

57

SHARP PARTS GUIDE

58

❑ Top cabinet etc.[ER-A460]

59

❑ Top cabinet etc.[ER-A470]

61

~ Bottom cabinet etc

63

RCPSO084

64

~ Drawer box unit(SK423 type)

65

❑ Drawer box unit(SK423 type)

66

ER-A460V

67

❑ Main PWB unit

68

❑ Main PWB “nit

69

❑ Key l/F PWB unit

69

❑ DisDlavPWB unit

70

❑ IR PWB unit

70

❑ Pop-up PWB unit

71

❑ Articles for consumption

71

ER-A460v

72

I 6-94 i Ac ‘

73

PARTS CODE NO

74

PARTS CODE

74

ER-A460VS

75

NovemberPrinted in Japan @

75

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