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6. PS2 KEYBOARD USABLE FOR UP-5900
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+
7. PRECAUTION FOR ATTACHING THE
COVER TO THE POWER UNIT
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)
Cover
T1A
Radiator fin
8. AC CORD GND WIRE CORE ADDITION
■ ■ ■ ■ Fixing the core
T1A
Radiator fin
1
)
Radiator fin
2
UP-5900VS SERVICE PRECAUTION
3 – 2
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
Procedure 1
Binding position of the
binding band
Procedure 2
Pulling direction of
the binding band
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