Bose CVT-5 User manual

1
BOSE®
PANARAY®
SOUND SYSTEM
CVT-5CONSTANT
VOLTAGE
TRANSFORMER
OWNER’SGUIDE

2
Contents
CVT-5ConstantVoltageTransformer
ForThePanaray
®
502
®
AControlledArray ............................... 3
BeforeYouBegin… ............................................................ 3
AttachingtheCVT-5Transformer
ToThe502AArray .............................................................. 4
ElectricalConnections ........................................................ 9
NoteOnPainting ............................................................... 11
NoteOnReplacementParts ................................................ 11
ForInformation .................................................................. 12

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CVT-5 Constant Voltage Transformer
For The Panaray
®
502
®
A Controlled
Array
ThankyouforpurchasingtheBose
®
CVT-5ConstantVoltageTransformer
forthePanaray502AControlledArray.TheCVT-5isanintegral,factory-
designed70/100Vtransformerengineeredforquickinstallationonthe
502Aarray.Thetransformerhandlesupto150Wofpower(infour
differenttaps)toaccommodateavarietyofdistributedvoice-only
applicationrequirements.Thecompact,custommoldedenclosureofthe
CVT-5attachesflushtotherearofthe502Aarray.Thisprovidesan
aestheticadvantageandagoodfitwhenyouusetheCVT-5transformer
inconjunctionwithBosePanaraymountingaccessories.
BeforeYouBegin…
Thetransformer’ssymmetricalhousingallowsyoutoattachtheCVT-5
withitsspeakerterminalspointingawayfromortowardthe502A
array’sfourrearattachment
points(Figure1).
Beforemakingthe
attachment,considerwhich
orientationrequiresthe
leastspeakercable.Thatmay
helpyoudecidetheorientation
youprefer.
Blue
(75W)
Green
(38W) White
(19W)
Black
(–)
Figure1

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AttachingTheCVT-5TransformerTo
The
502
®
AArray
1. Use a Phillips head screwdriver to remove the
four screws that secure the connector plate to
the rear of the 502A array (Figure 2).
2. Use a small slot screwdriver to carefully pry the
connector away from the rear baffle. Pull it out a
short distance (Figure 3).
3. Use wire cutters to cut the two wires near the
solder terminals on the inside of the connector
panel (Figure 3). Put the panel aside.
4.
Strip
1
¦ 2 "(12mm)ofinsulationfromtheendofthetwowires
insidethe502Aarray.

5
Figure2
Figure3

6
5. A. Identifythepositiveoutputleadfromthetrans-former
accordingtothesystem’spowerrequire-ments(see
tablebelow).Thatlead’spowerratingindicateswhere
youwill“tap”thetransformer.
Red ................................................ 150W
Blue ........................................ 75W
Green ..................................... 38W
White ...................................... 19W
B. Pullthecutaway tipoftheinsulation offthatlead.
C. Clipthethreeunusedleadsoffatthetransformer
windings(Figure4a).
D. Connectthepositivelead,whichishangingloose,to
theredwireinsidethearray(Figure4b).
E. ConnecttheblackwireontheCVT-5transformertothe
blackwireinsidethearray.
Note: Solderingandinsulatingwithelectricaltapeisthemethod
Bose
®
recommendsforconnectingwires.Usingasmallcrimp-type
buttsplicerisalsoacceptable.
Wedonotrecommendwirenuts,terminalblocks,orsimilar
solderlessdevices,whichcouldrattleinsidethe502
®
Aarrayor
touchtherearofoneofthe driverconesduringuseofthesystem.

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Figure 4b
Figure 4a
+
–

8
6. Press the CVT-5 transformer housing down into
the flange in the orientation you prefer.
7. Use the four screws removed from the connector
plate to secure the CVT-5 to the array (Figure 5).
Figure 5

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ElectricalConnections
Notice the arrangement of terminals on the back of the
CVT-5 transformer housing (Figure 6).
1. For 70V systems, connect the positive or hot
speaker lead coming from the amplifier to the
terminal labeled +70V. For100V systems,
connect the positive lead to the terminal labeled
+100V.
Figure6

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2. Connect the ground or negative lead to the
terminal labeled GND. Do not use the terminal
marked N/C, which has no function.
3. For parallel connections in a chain, connect the
next array’s cable to the same terminals used
above.
Note:Bose
®
recommendsusingsolder-typespadelugsontheends
ofthespeakercables.Tomakeparallelconnectionsefficiently,you
canattachtheendsoftheincomingandoutgoingcablestoa
singlepairofspadelugs,whichthenattachtotheselected
terminals.
Ifyoudonotusespadelugs,makesurethattheincomingand
outgoingcablesareofthesamediameter.Thatwillensureanequal
force on them from the terminal strip flanges.