SHARP UP-5350 Service Manual

POS TERMINAL

MODEL UP-5350

("U" version)

CONTENTS

1. Removing the Rear Display Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2. Replacing the Rear Display Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3. Removing the Top Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

4. Replacing the Top Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1

5. Removing the Power Supply Unit and AC cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

6. Replacing the Power Supply Unit and AC cord. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

7. Removing the LCD Unit.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

8. Replacing the LCD Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

9. Replacing the FDD Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

10. Removing the FDD Unit.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

11. D-RAM disk: S.O. DIMM (Locally supplied .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

12. MCR Unit: UP-E12MR2.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..6

13. Adjusting the IRQ10/11 on the ISA PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6

14. RS232 & CENTRO I/F: ER-A8RS.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

15. Rear Display UP-I20DP.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7

16. Pole Display: UP-P20DP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7

17. Drawer Unit: ER-03DW/04DW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9

18. COM1, COM2, COM3/5, and COM4/6 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

19. Built-in Printer: UP-T80BP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...11

20. Key Pad : UP-C30PK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...15

Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these par ts with specified
ones for maintaining the safety and performance of the set.

This document has been published to be used

SHARP CORPORATION

for after sales service only.
The contents are subject to change without notice.

Precautions

•Before installation, be sure to turn off the power.

•Use gloves to protect your hand from being cut by the angle

and the chassis.

•Connect all the cables securely. When connecting or

disconnecting the cables, be careful not to apply stress to the
cables. (It may cause disconnection.)

•Ground the human body to prevent against troubles and dust

adhesion to the LCD by static electricity. When assembling the
LCD, use a discharge blower to prevent against dust intrusion.

•Be careful to the high voltage of the invertor PWB transformer.

•About placing top cabinet with LCD panel side down, Please

use a clean dust free cloth to protect the touch panel and LCD
area.

7

A

1

1

8

1.Removing the Rear Display Filter

1)Remove the two screws .

2)Remove the Rear Display Filter

.

2

1

2.Replacing the Rear Display Filter

Install the Rear Display Filter in the reverse order of removing.

3.Removing the Top Cabinet

1)Remove the two screws .

2)Remove the Side cabinet

3)Remove the screw

4)Remove the Printer Lid

5)Remove the screw

6)Remove the Top Cabinet
a)Release the latches

Upper Cabinet to the right and release the latch on the right.

b)Lift the Top Cabinet and put it straight in the direction of arrow

A. ( Be careful not to pull the cable between the LCD I/F
PWB-Key Pad PWB of the top cabinet and the MAIN PWB of
the Bottom Cabinet.)

c)Pull and remove the following cables between the LCD I/F

PWB of the Top Cabinet and the MAIN PWB of the Bottom
Cabinet.

•LCD Cable : VGA PWB : CN602

•Key Pad Cable : MAIN PWB :CN10

Key Pad : UP-C30PK is optional.

•Earth Wire .

.

.

.

.

.
, and in that order. Slide the

4

a

10

b

5

3

9

6

c

2

4.Replacing the Top cabinet

Install the Top Cabinet in the reverse order of removing. Before install­ing, make sure that each connector is connected securely.

5.Removing the Power Supply Unit
and AC cord

1)Remove the two screws .

2)Remove the AC cord cover

3)Use a minus screwdriver

pcs.) of the Power Supply Unit.

4)Remove the screw

5)Remove the Power Supply Cable

6)Remove the four screws

6

.

to loosen the AC cord fixing screws (2

and the earth wire from the AC cord.

.

.

A

3

4

6

5

6

7.Removing the LCD unit

1)Remove the LCD Unit .
a)Remove the screw
b)Remove the Tilt Cover
c)Remove the Core
d)Remove the three screws

.

.

.

.

a

b

1

2

1

6.Replacing the Power Supply Unit
and AC cord

2

2)Remove the LCD Rear Cabinet
a)Remove the two screws
b)Remove the pawls

order.

g

h

i

j

4

.

to of the LCD Rear Cabinet in that

f

k

c

2

.

de

c

b

a

l

Install the in the Power Supply Unit and AC cord in the reverse order
of removing.

Before installing, make sure that each connector is connected se­curely.

When connecting the AC cord to the Power Supply Unit in
assembly, tighten with the torque of 3 kg/cm ± 1 kg/cm.

3

Caution:

Please do not place the LCD Unit on hard surfaces, Please take
special care not to place the LCD Unit on any surface that may cause

damage to the unit.

3)Remove the Inverter PWB
a)Remove the Inverter Cable
b)Remove the CCFT Cable
c)Remove the screw
d)Remove the Inverter Cover

5)Remove the LCD

.

.

.

.

.

6

8

9

a)Remove the six screws
b)Remove the four screws
c)Remove the LCD Plate
d)Remove the LCD PWB Unit
e)Remove the screw

.

.

.

.

.

and LED PWB .

4)Remove the Touch Panel PWB Unit
a)Remove the LCD Cable(40P)
b)Remove the LCD Cable(29P)
c)Remove the Touch Panel Cable
d)Remove the Inverter Cable
e)Remove the LED Cable
f)Remove the two screws

.

.

.

9

5

7

21

23

18

22

18

20

18

18

18

18

17

.
.
.

.

a

19

19

19

b

a

b

Lock Unlock

11

14

10

12

16

15

14

13

Lock

Unlock

Reference for attaching LCD GUM A : to LCD GUM B :

R

efer

e

n

ce

e

l

f

i

n

e

e

R

e

n

i

l

ce

en

r

a

Re

f

e

b

r

en

c

e l

i

ne

ne

i

l

e

nc

ere

f

e

R

a

LCD

b

8.Replacing the LCD Unit

Install the LCD Unit in the reverse order of removing.
Before installing, make sure that each cables are connected securely.

9.Replacing the FDD Unit

1)Remove to the Printer Lid .
a)Remove the screw
b)Remove the Printer Lid

2)Remove the Bottom Plate
a)Remove the three screws
b)Remove the Bottom Plate

3)Remove the FDD Cover

.

.

.

.

.

.

7)Install the FDD UNIT
a)Install the FDD UNIT

Cabinet with the four screws
b)Connect the FDD CABLE
c)Pass the EARTH WIRE
d)Install the EARTH WIRE

to the UP-5350.

and FDD ANGLE-B to the Bottom

.

to the Main PWB.

through the hole .

with the screw .

11

14

1

2

7

4

5

15

10

15

A

16

10

17

13

4)Install the FDD ANGLE-A
a)Install the two FDD ANGLE-A

FDD UNIT

with the four screws .

5)Connect the FDD CABLE

6)Install the Ferrite Core

12

10

8

17

13

onto the FDD Cable .

.

and EARTH WIRE to the

to the FDD UNIT .

8)Install the FDD COVER

11

17

8

12

to the FDD FRONT COVER .

18

9)Install the FDD COVER UNIT , to the Bottom Cabinet.

17 18

10.Removing the FDD Unit

Install the FDD Unit. In the reverse order of replacing.

11.D-RAM disk: S.O. DIMM (Locally supplied)

[Device]144 pin Small Outline DIMM (8Mbytes/16Mbytes/32Mbytes/64Mbytes)
[Outline]UP-5350 has a socket as Small Outline DIMM.

[Specification]

1)Remove the Top Cabinet.

2)Install the option D-RAM disk

It is necessary to satisfy with S.O.DIMM memory specification as follows.

8Mbytes 16Mbytes 32Mbytes 64Mbytes
Type EDO type
Access time 60 nsec.(less than)
Power 3.3V
Refresh cycle 1024/16 msec. 2048/32 msec. 4096/64 msec. 4096/64 msec.
Refresh type CBR
Power consumption 700 mA (less than)
Other 4 chips x 16Mbits

(1Mwords x 16 bits)

to the D-RAM connector: CN13

on the Main PWB.
a)Insert a D-RAM disk at a slant into the D-RAM connector.
b)Push the D-RAM disk until the D-RAM disk is correctly locked

by the arms of D-RAM connector.

8chips x 16Mbits

(2 Mwords x 8 bits)

144pin S.O.DIMM

4 chips x 64Mbits

(4 Mwords x 16 bits)

8 chips x 64Mbits

(8 Mwords x 8 bits)

1

2