This document describes the assembly of the POLAVIEW 3000 board level elements.
The manual serves as a guide for the replacement of such elements when the unit needs servicing. Board level repair
may only be performed by the company :
COMPANY
REFERENCE
as authorized by ASK. Any unauthorized repair that is performed outside the scope of this document will violate any
warranties and could potentially damage the unit.
The document does not assist in repairing the elements themselves (such as replacing individual components on the
electronic circuit boards).
This Board Level Service manual is accompanied by the SPAREPART PRICE LIST document which outlines order
procedures for replacement parts, warranty details, returns and payment terms etc.
REVISION HISTORY
01.03.94 JEDraft based on Service Manual Impact 21
TABLE OF CONTENTS ............................................................................................................................................ 2
SYSTEM STRUCTURE ................................ ............................................................................................................ 4
REPLACING SYSTEMS ELEMENTS ...................................................................................................................... 4
DISPLAY UNIT STRUCTURE ................................................................................................................................. 5
SERVICING THE DISPLAY UNIT ................................ ........................................................................................... 6
Opening the unit [15 min] ............................................................................................................................. 6
Replacing the controller card [15 min] ..........................................................................................................6
Replacing the LCD module [15 min] ............................................................................................................ 6
Replacing the LCD module harness [15 min] ................................ ............................................................... 6
Replacing the keyboard [15 min] .................................................................................................................. 6
Replacing the fan [15 min] ............................................................................................................................ 7
Replacing the upper protection glass [15 min] .............................................................................................. 7
Replacing the lower protection glass [15 min] .............................................................................................. 7
Replacing the housing top [30 min] .............................................................................................................. 7
Replacing the housing bottom [30 min] ........................................................................................................7
Replacing the speaker [15 min] ..................................................................................................................... 7
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SERVICE MANUAL
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BOARD LEVELPOLAVIEW 3000
PART # ITEMDESCRIPTION
SERVICE MANUAL
TOOLS
You need a the following tools for board level repair :
TOOLUSE
Pozidrive no.2 screwdriverOpening housing, replacing elements
5 mm nutdriverFastening the COMPUTER connector
8 mm open-end wrenchReplacing cooling fan
SYSTEM STRUCTURE
The display system consists of the following main elements :
10300.065 POWER CORD EUREuropean power cord
11402.094 REMOTE CONTROL, POLAVIEW 3000 Infrared remote control
12408.000 BATTERY 2 x LR032 Pcs. AAA Batteries
* Accessories not included in regular POLAVIEW 3000 delivery (Cuuntry/Language dependant)
For a complete overview of parts & accessories availabel, see the Addendum (SPPL).
REPLACING SYSTEMS ELEMENTS
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SERVICE MANUAL
All system elements as described above are replaceable in the field. The repair of the display unit at the board level is
described below. The other elements (such as electronics) are not serviceable and should therefore be replaced if they
fail.
DISPLAY UNIT STRUCTURE
The display unit consists of the following board level elements :
See the attached exploded drawing of the board level elements on page 7.
Additionally available is a kit of mounting details (screws, washers etc) :
POSPART#ITEMDESCRIPTION
402.502MOUNTING KITKit of mounting details
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BOARD LEVELPOLAVIEW 3000
SERVICE MANUAL
SERVICING THE DISPLAY UNIT
All maintenance of the unit shall be performed at a static-free workstation. Work in a dust free environment if possible,
and have access to a high pressure air blower to remove dust when assembling the unit.
The unit must be disconnected from the power supply and computer before opening.
Nominal time needed to perform each operation is shown in square brackets [ ].
Opening the unit [15 min]
Place the display facing down on a scratch-free surface. Remove the four mounting screws. Gently open the housing,
observing the cables that connect the elements in the top and bottom parts.
Replacing the controller card [15 min]
Disconnect the LCD cable (6) from the controller board (15), and the fan (7) from the controller board (15). Unscrew
the three mounting screws of the board and the two screws holding the computer connector (14).
Replace with a new card, reversing the above procedure.
Replacing the LCD module [15 min]
Disconnect the LCD cable (6) from the LCD module (4). Unscrew the four mounting screws. Gently lift off the
module. Beware that the top glass is held in place by the module.
If the LCD module is broken, soak up any spilled liquid and dispose of in ordinary litter. Use gloves. Wrap broken
glass thoroughly and wash your hands.
Replace the LCD module. Take care to remove any dust between the LCD module and the glass before reassembling.
Replacing the LCD module harness [15 min]
Disconnect the cable (6) from the LCD module (4) and the controller board (15).
Replace with a new cable, observing the correct polarity at both ends. At the controller board end, the cable will have
either a notch for polarization, or an arrow mark at pin 1.
Replacing the keyboard [15 min]
The keyboard (11) is mounted in the housing top. A circuit board holds four separate silicone rubber keys (10) in
place.
Disconnect the keyboard cable (12) from the keyboard (11). Unscrew the screws holding the circuit board. Carefully
lift off the board. Replace the rubber keys (10) and/or the circuit board as needed. Check key operation after
reassembling for smooth operation.
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SERVICE MANUAL
Replacing the fan [15 min]
The fan (7) is mounted on the housing bottom by four nuts. Disconnect the fan cable from the controller board (15)
and remove the four nuts.
Replace with a new fan.
Replacing the upper protection glass [15 min]
To replace the upper protection glass (2), follow the above procedure on replacing the LCD module. If the glass is
broken, observe the surface of the LCD module for scratches that may affect the display quality and replace the LCD
module if necessary. Wrap broken glass thoroughly.
Replace with a new glass, reversing the above procedure.
Replacing the lower protection glass [15 min]
This glass (9) is removed from the outside, without opening the display unit, and may be performed by the user. The
glass is held in place by springs. Use two fingers to slide the glass out and replace with a new glass. Refer to the
instructions in the User Guide.
Check that the new glass is correctly ground on the edges to avoid cutting wounds.
Replacing the housing top [30 min]
Remove the LCD module (4) and upper glass (2) as described previously under LCD module replacement.
Also remove the keyboard (11) and cable (12).
Replace with a new housing top, reversing the above procedure.
Replacing the housing bottom [30 min]
Remove the controller board (15) and fan (7) as described previously.
Replace with a new bottom part.
Replacing the speaker [15 min]
Unplug the speaker cable (13) from the controller board (15). Unscrew the four nuts holding the speaker (13)
Replace with a new speaker.
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SERVICE MANUAL
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