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UP-5900VS

OPTIONS

2 – 4

This connector is connected between CN10/11 of the main PWB and

the parallel port through the Dongle cable (QCNW-7858BHZZ) for
checking the parallel port during execution of diagnostics.

•  Used when executing the diagnostics of the UP-E12MR2.

• External view

Connected to the RS232 connector (D-SUB 9 pin: COM1, COM2) of the

UP-5900 and ER-A8RS, and used to check loop signals when execut-
ing diagnostics.

• Connection diagram

Connected to the RS232 connector (RJ45: COM3) of the UP-5900, and

used to check loop signals when executing diagnostics.

• Connection diagram

No.

NAME

PARTS CODE

PRICE

DESCRIPTION

1

Parallel loop back connector

UKOG-2366BHZZ

BM

2

MCR test card

UKOG-6718RCZZ

BE

for UP-E12MR2

3

RS232 loop back connector

UKOG-6705RCZZ

BC

for RS232 connector

4

RS232 modular jack loop back connector

UKOG-6729BHZZ

AZ

for RJ45 connector

5

TOUCH PEN

CPENP1004PCN5

AG

STROBE#

1.   D0

2.   D1

3.   D2

4.   D3

5.   D4

6.   D5

7.   D6

8.   D7

9.   ACK#

10. BUSY

11. PE

12. SLCT

13. AF#

14. ERROR#

15. INIT#

16. SLCTIN#

17. PE

25. PE

CD       1pin

RD       2pin

TD       3pin

DTR    4pin

GND    5pin

DSR    6pin

RTS    7pin

CTS    8pin

RI        9pin

RTS
DTR
TD
GND
GND
RD
DSR
CTS

1pin
2pin
3pin
4pin
5pin
6pin
7pin
8pin

UP-5900VS

SERVICE PRECAUTION

3 – 1

To solder the following parts manually, follow the conditions described below.

•  When removing or performing maintenance activities on the CPU and

POWER FAN, be sure to handle them with care, because it may
cause abnormal sounds or deteriorate their performance if they are

dropped or exposed to a heavy impact.

•  The transparency of the touch panel should be vitally important.

Use clean gloves and masks.

• For handling, do not hold the transparent area, and do not hold the

heat seal connector section to assure reliability.

•  Do not overlay touch panels. The edge may damage the surface.

•  Do not place heavy things on the touch panel.

•  Do not apply a strong shock, and do not drop it.

• When attaching the protection film again, carefully check for dirt. If

there is any dirt, it is transferred.

•  To clean dirt on the surface, use a dry, soft cloth or a cloth immersed

in ethyl alcohol.

•  Check that the housing does not give stress to the touch panel.

•  Be careful not to touch the touch panel with tools.

• The heat seal section is easily disconnected. Be careful not to place

stress to the heat seal section when installing.

• The touch panel is provided with an air groove to make the external

and the internal air pressure equal to each other. If water or oil is put
around the air groove, it may penetrate inside. Be careful to keep the

air groove away from water and oil.

•  Do not use sharp objects when making input entrees.

•  The LCD elements are made of glass. BE careful not to expose them

to strong mechanical shock, or they may be broken. Use extreme

care not to break them.

• If the LCD element is broken and the liquid leaks, avoid contact with

your mouth or eyes. If the liquid comes in contact with your skin or

clothes, immediately clean with soap.

•  Use the unit under the rated conditions to prevent against damage.

•  Be careful not to place water or other liquids on the display surface.

• The reflection plate and the polarizing plate are easily scratched. BE

careful not to touch them with a hard object such as glass, tweezers

etc. Never hit, push, or rub the surface with hard objects.

• When installing the unit, be careful not to apply stress to the LCD

module. If excessive stress is applied, abnormal display or uneven
color may result.

When connecting or disconnecting the ffc, follow the procedures below.

*

*

*

*

(1) Pull the slider to the unlock position.

(2) Inserting the FFC

Insert the FFC firmly until the FFC hits the bottom of the connector’s

insulator.

(3) Close the slider to the lock position

PARTS NAME

PARTS CODE

LOCATION

CONDITIONS FOR SOLDERING

Ceramic oscillator

RCRMZ7002RCZZ

TOUCH PANEL CONTROL PWB: X1 (8M)

270°C/3sec.

RCRMZ7004RCZZ

MAIN PWB: X4 (8M)

RCRMZ7004RCZZ

MAIN PWB: X3 (7.37M)

Thermal fuse

QFS-T0096FCZZ

MAIN PWB: F1

300°C/3sec (Length of lead: 15mm or more)

F1

SILICON BOND

Q5

Solder

15mm or more

FFC

FFC

FFC

CONNECTOR

CONNECTOR

CONNECTOR

FFC

UP-5900VS

SERVICE PRECAUTION

3 – 2

The UP-5900 can be externally connected to a keyboard.

The UP-5900’s key BIOS conforms to the PC standard, but this BIOS’s

operation is not compatible for some keyboards.

Some keyboards may cause operation errors due to delicate timing and
conflicts.

It is currently found that the following models of keyboards may mal-

function.

When selecting a keyboard to be connected, test the keyboard in

advance to check that it correctly works.

•  Japanese keyboard (106 keys)

Manufactured by IBM: TYPE/MODEL5576-B01 FRUPN66G0507

•  English keyboard (101 keys)

Manufactured by NMB Technologies Inc.: Model: RT6651T+

When attaching the cover to the power unit, two lead wires (white x 1,
black x 1) of T1A (transformer) in the power unit may be pinched by the
cover, causing a damage to the wiring. (

1

)

To avoid this, push two lead wires of T1A between the radiator fin and
T1A before attaching the cover. (

2

)

■

■

■

■

Procedure 

1

Procedure 

2

T1A

T1A

T1A

1

2

Radiator fin

Radiator fin

Radiator fin

Cover

Add the core to the AC cord GND 
wire for increasing the EMI margin.

Core added: SC18B (RCORF6698BHZZ)

Wind the AC GND wire around 
the core 3 turns (2 windings).

Binding band

Binding position of the 
binding band

Pulling direction of 
the binding band

UP-5900VS

SERVICE PRECAUTION

3 – 3

Procedure 

3

■

■

■

■

1.

Content of change

The core of the cable connecting the power unit and the main PWB

unit is changed. 

■

■

■

■

Fig.1 LCD cable treatment and core addition

Fig.2 LCD cable treatment (Cable and riser fixing)

Fig.4 Earth Spring 1 (30PK)

l

Fig.5 Earth Spring 2 

*

Earth Spring 1 and 2 are the same one.

*

Earth Spring 1 in Fig.4 is packed together with 30PK.

Procedure 

1

Pass the binding band through the core as shown in

the photo.

Procedure 

2

Bind the core as shown in the photo and pull the

band to fix.

Procedure 

3

Fix so that the binding position of the band does not
extend out of the plate.

Binding position of the 
binding band

Inside

The binding position of the band 
must be inside of this position.

Core: RCORF2356BHZZ(SC18E)
Pass all the cables (1pin - 15pin) 
through the core (SC18E) except for 
the power cable. At that time, be 
careful not to apply an external force 
to the power unit capacitor.

This cable is passed under the 
PS unit - Main PWB cable.

Binding band

Binding band

BNF18

Use the binding band for 
wiring as shown in the 
figure.

30PK standard destination model