DOWNLOAD Panasonic UB-T880 / UB-T880W (serv.man4) Service Manual ↓ Size: 5.61 MB | Pages: 127 in PDF or view online for FREE

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1

CONTROL Board

controls all functions of this model.

2

POWER Board

supplies power to each board on the elite Panaboard.

3

TRANSMISSION Board

sends Drive Pulse to electrode sheets in the X direction of the Screen Board.

4

RECEPTION 1 Board

receives current to detect the position on the screen touched with fingers or electronic 
pens. 

5

AUDIO Board

amplifies the sound from a computer or an audio port. 

6

Speaker L

outputs the sound from a computer or an audio port via the AUDIO Board.

7

Speaker R

outputs the sound from a computer or an audio port via the AUDIO Board.

8

Power SW / LED Board

has a power-supply switch and LEDs (Green and Red). 

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Electrode sheets in the X and Y directions of the Screen Board are allocated to detect the position that a user touches with
electrical conductors fingers or electronic pens.
By touching a point at the intersection of an X electrode (one of 162 electrodes for UB-T880 or one of 186 electrodes for
UB-T880W) with an Y electrode (one of 120 electrodes), elite Panaboard will detect a change in the intersection capacitance
via RECEPTION 1 Board or RECPTION 2 Board to specify the position touched with fingers or electronic pens, while the
drive pulse is applied from the TRANSMISSION Board.

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Electrode sheets in the X and Y directions of the Screen Board are allocated to detect the position that a user touches with
electrical conductors fingers or electronic pens.
By touching a point at the intersection of an X electrode (one of 81 electrodes for UB-T880 or one of 93 electrodes for
UB-T880W) with an Y electrode (one of 60 electrodes), elite Panaboard will detect a change in the intersection capacitance
via RECEPTION 1 Board to specify the position touched with fingers or electronic pens, while the drive pulse is applied
from the TRANSMISSION Board.

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The following table lists the symptoms that may result when they need to be replaced, cleaned, or serviced.

 Before performing the maintenance, turn off the elite Panaboard. 

Gently wipe the elite Panaboard with a soft, moist cloth.

                        • The elite Panaboard is designed exclusively for projector  images.
                           To remove marks written with a whiteboard marker or stubborn stains, use whiteboard cleaner or
                   neutral household detergent diluted with water.
                        • Do not use thinner, benzene, or abrasive chemicals to clean.
                             (Doing so can result in discoloration.)

Screen Board

The surface of the Screen Board becomes dirty.

Clean

See 7.2.

Penpoint (Electronic Pen)

The penpoint of the Electronic Pen becomes worn.

Replace

See 7.3.

Battery (in Electronic Pen)

The Electronic Pen’s status LED blinks.

Replace

See 7.4.