JBL 5302 Manual

JBL
5302
INSTALLATION
AND SERVICE
MANUAL

Owners Instructions
Architectural Specifications
The mixershallbea solid-stateunitcapableof
combiningsixmicrophoneandtwolinelevelinputs,or
five microphone,twolinelevelandonepairofphono
inputsandshallbecapableofdelivering+18dBmwith
less than0.2%THD.Itshallhavea frequencyresponse
of20Hz- 20 kHz, ±1 dB(unbalancedinput),35Hz- 20kHz,
+1dB,-2dB(balancedinput),at+18dBmor less.
Each ofthesixmicrophoneinputsshallaccommodate
an unbalancedhighimpedancemicrophoneora
balanced lowimpedancemicrophone.Themicrophone
inputcircuitsshallbeequippedwith9-pinsocketsfor
mountingoptionalplug-intransformerstopermittheuse
oflowimpedancemicrophones.Three-pinfemale
XL-type socketswithpositivelatchlocking devices shall
be providedforthemicrophone channels. Each
microphoneinputshallbeequippedwithaninputpad
switch onthe front panel,selectablefrom0,15,or
30 dBattenuation.
The twolinelevelinputsshallaccommodatean
unbalanced highimpedanceinput,ora balancedhigh
orlowimpedanceinput.Thelinelevelinputsshallbe
equippedwith 9-pinsocketsformountingoptional
plug-intransformers.A five screw terminalboardshall
be providedforconnecting each lineinput.
One microphoneinputshallalternatively
accommodate a magneticphonographcartridgeinput.
A dual RCA-type phonojackshallbeprovidedtoallow
programinputfroma stereosource.
The mixershallhaveindividuallowandhigh
frequency tonecontrols.Thelowfrequencycontrolshall
affect output below500Hz(+3dBreferencepoint)
and thehighfrequencycontrolshallaffectthe output
above 2.5kHz(+3dBreferencepoint).
A 6.3mm (Va inch)phonejackshallbeprovidedon
thefacepaneltoallowheadsetmonitoringor
connectiontoanauxiliaryamplifier.Themonitor output
shall beaffectedby both themasterlevelcontroland
thetonecontrolsandshallbeprovidedwitha separate
gaincontrol.A CUEIN/OUTswitchshallbeprovided
toallowthemixer output tobeswitchedoff.
For a balanced600H output,anoptional accessory
output transformershallbeavailable.
The mixershalloccupythreestandardEIArack
spaces andshalloperateon120/240V AC,50/60Hz.
The mixershallbetheJBLModel 5302.
J BLcontinuallyengagesin research relatedtoproductinprovement.Newmaterials,
productionmethodsanddesignrefinementsareintroduced into existingproducts
withoutnoticeastoa routineexpressionofthatphilosophy.Forthisreaon.any
currentJBLproductmaydifferinsomerespectfromitspublisheddescription,but
will always equalor exceed theoriginaldesignspecifications unless otherwise
stated.
Product Specifications
Accessories
Model5195Matching/bridging
Transformer
Model5901MicrophoneInput
Transformer
Model5902OutputTransformer
Connectors
Line Input(2)
Screw terminalboard
MonitorHeadphone
Standard 6.3mm (1 /4in.)phonejack
MicrophoneInput(6)
Female XL-typesocket,positive
latch locking
Output
Screw terminalboard
Phono (2)
RCA typejack
Controls
Cue
Push-lock/push-release
mechanical reflectingindicator
button
Line (2)
Linear taper pot5
Master Level
Audiotaperpot
Meter Range
3-positionslideswitch+8dBm,
+4dBm,0 dBm
Microphone(6)
Linear taper pot3
MicrophoneAttenuator 3-positionslideswitch0 dB,-15dB,
Pads (6)
-30 dB
Power
Push-lock/push-release switch
Tone Controls
Bass
= +14dB@ 50Hz
Treble
= +10dB@ 10kHz
Dimensions
Front Panel
483 mmx 133 mm19"x5 7/32"
DepthofControls
19 mm3/4"
DepthBehind Panel
191 mm7 1/2"
Equivalent InputNoise
Direct Input
Phono
-68 dB(ref.10mVinput@ 1 kHz)
Balanced Input
Microphonewith
5901 Transformer2
-124 dB
Line with5195Transformer3
-90 dBm
Frequency Response
Direct Output
Direct Input
Microphone2 +1dB,20Hz-20kHz
Line3
±1 dB,20Hz-20kHz
Phono
±1 dB,20Hz-20kHz
Balanced Input
Microphonewith
5901 Transformer2
+ 1 dB,-2dB,30Hz-20kHz
Line with
5195 Transformer3 +1dB,-2dB,30Hz-20kHz
Balanced Outputwith
5902 Transformer
Direct Input
Microphone2 +1dB,20Hz-20kHz
Line3
+1dB,20Hz-20kHz
Balanced Input
Microphonewith
5901 Transformer2 +1dB,-2dB,30Hz-20kHz
Line with
5195 Transformer3
+ 1 dB,-2dB,30Hz-20kHz

EIA rack spaces without additionalbracingor
ventilation,orforcounter-topplacement.A full setof
mounting hardwareispackaged with each unit. All
external connectionsaremadeontherearpanel,
Figure 2.
OperatingTemperature
The minimumrecommendedclearancewhenstacking
the unit isoneEIAstandardpanel space. Themaximum
allowableambienttemperatureforthemixeris60°C
(140°F).
OperatingControls
Alloperatingswitches,meterandlevelcontrolsare
locatedonthe front panel,Figure1.
InputConnections
Inputconnectionstothemixermaybeeitherdirect-
coupledortransformer-isolatedattheXL-typesockets
orthescrewterminalboards,Figure2.
Directcouplingisaccomplishedbyconnectingthe
centerconductorofa shieldcableto DIRECT (line
input)andtheshieldtoGND,thecenterconductorofa
shieldcabletopin#2(XL-typeconnector)andthe
shieldtopin#1,orthecenterconductorofa shield
cable tothecenterpinofanRCA-typephonoplug
andtheshieldtothe shell.
For transformer-isolatedinputs,a 5901universal
microphonetransformer(formicrophoneinputs)ora
5195 matching/bridgingtransformer(forlineinputs),
Figures 3Aand3B,maybe used. Transformer-isolation
is accomplishedbyconnectingtheclearconductorof
a twoconductorshieldcabletotheHI(lineinput),the
blackconductortotheLOandtheshieldtoGND,or
theclearconductorofa twoconductorshieldcableto
pin#3(XL-typeconnector),theblackconductorto
pin#2andtheshieldtopin#1.
OutputConnections
Outputconnectionstothemixermaybeeitherdirect-
coupledortransformer-isolatedatthescrewterminal
board,Figure2.
Directcouplingisaccomplishedbyconnectingthe
centerconductorofa shieldcableto DIRECT and
theshieldtoGND.
Transformer-isolated output requiresa 5902optional
accessory output transformer.
Warning: Addition of5902accessorytransformer
requiresinternalmodificationbya qualifiedservice
technician.
Transformer-isolated output isaccomplishedby
connectingtheclearconductorofa twoconductor
shieldcabletotheHI,theblackconductortotheLO
andtheshieldtoGND.
NOTE: Direct output ofthemixerisnotpossible
whenthe5902optional output transformeris
installed.
1
Gain
Direct Input (unbalanced)
Microphone
60 dB, high Z
Line 29 dB, high Z
Phono 53 dB@ 1 kHz, high Z
Balanced Input
Microphone with
5901 Transformer
80 dB,lowZ
Line with 5195Transformer
28 dB, high Z
Headphone Output Level +14dBm
Input Overload6
Direct Input (unbalanced)
Microphone2
Input Pad0 79.8 mV
Input Pad-15
450 mV
Input Pad-30
2.5 V
Line3 8.4V
Phono 152 mV
Balanced Input
Microphone2
Input Pad0
4.43 mV
Input Pad-15
24.96 mV
Input Pad-30
139 mV
Line3 9.0V
Intermodulation Distortion4
(SMPTE)
<0.03%
Input Impedance
Direct Input (unbalanced)
Microphone
82 kH
Line
15 kO
Phono
47 kn
Balanced Input
Microphone with
5901 Transformer
800 n
Line with 5195Transformer
15 kn
Maximum Ambient Temperature
60°C 140°F
Mounting 3 EIAstandardrackspaces
Net Weight
7.2kg153/4lb
Output Impedance
Direct
40-80 n , unbalanced
(20 Hz-20kHz)
Balanced with
5902 Output Transformer
400-600 n , (20Hz-20kHz)
Headphone
500-600 n , unbalanced
(20 Hz-20kHz)
Output Level >+18dBm
Panel Finish Semi-glossbakedenamel,
dark gray
PowerRequirements
Line Voltage
120/240 V AC,50/60Hz
Wattage
7 W
Shipping Weight 9 kg20lb
TotalHarmonic Distortion
< 0.2%, 20Hz-20kHz
@ rated output
NOTES: 1.Requires20Hz-20kHz equivalent bandwidth filter.
2. 150n input source.
3. 600fl input source.
4. At+18dBm.
5. Equivalent audio taper.
6. Measuredat 0.5% THD.
Installation
The 5302issuitableeitherforrack mounting inthree

Bass
Tone Control
Provides ±14dBboostorattenuationat50Hzbya
continuouslyvariablepotentiometer.Normalorflat
response at0 setting.
Provides ±10dBboostorattenuationat10kHzbya
continuouslyvariablepotentiometer.Normalorflat
response at0 setting.
Selects full-scalerangeofmeter.Calibrated
as follows:
Line 1-2Control
Displays mixer output inVU.Meterisilluminated
when primarypowerisapplied.
Applies primarypowertomixer.
Adjusts monitorgainbytheuseofa continuously
variable potentiometergraduatedfrom0 to10.
NOTE: BothtonecontrolsandMASTER LEVEL
controlwillaffectthe output levelsettingsof
the monitor.
Mic1-6Control Controlsmicrophoneinput
levels. The MIC 1 control
also controlsthephonographinput level.
WARNING:ConversionfromMIC1 toPHONO,
requires internalmodificationbya qualified
service technician.
NOTE. Whenthe JBL 5901 universalmicrophone
inputtransformeris used, themicrophonepad
and controlcannotbeusedlopreventtransformer
saturationif excessive inputsignallevelsoccur.
See SPECIFICATIONS (InputOverload)for
maximuminput.
Accepts standard6.3mm (1 /4in)phoneplug.
Headphones with600n impedanceare
recommended, butanyhigh-impedanceheadphone
willgivesatisfactoryoperation.Headphonejack
may beusedtodriveany600Si inputsource
ifrequired.
Cue
Push-Lock/
Push-Release
Mechanical
Reflecting
IndicatorButton
Disconnects output signalandallowsmixersignal
toremainat1O1jack.
2
FIGURE 1
Treble
Tone Control
MeterRange
Meter
Range
VUMeter
Display
Output Voltage
Output
0 dBm
0 0
dBm
0.775 V
+4dBm
0
+4dBm 1.229V
+8dBm
0
+8dBm 1.948V
Controlsline levels.
NOTE: Whenthe JBL 5195matching/bridging
transformeris used, theLINEcontrolcannotbe
used topreventtransformersaturationif excessive
inputsignallevelsoccur.See SPECIFICATIONS
(InputOverload)formaximuminput.
LED PowerOn
IndicatorLight
Indicates secondarypowerappliedtounit.
VUMeter
MasterLevel
Provides simultaneousattenuationofallinput
channels usinga continuouslyvariable
potentiometergraduatedfrom0 to10.
MicAttenuator
Pad Switches:
0dB
-15dB
-30dB
Reduces gain15dB,or30dBoncorresponding
inputchannelstoallowtheuseofhigh-level
microphones without introducingdistortion.
NOTE: TheMICATTENUATORPADchanges
thefeedbackintheinputstage;itcanbeusedto
preventinputsaturationif excessive inputsignal
levels occur.See SPECIFICATIONS (Input
Overload).
Jack
MonitorLevel
Power Switch
Push-Lock/
Push-Release

Unbalanced 600fi direct or600n balanced uptoan
output level of+18dBm using the optional5902
output transformer.
WARNING: Installation ofthe 5902accessory
transformerrequiresinternalmodification bya
qualifiedservicetechnician.
NOTE: Direct output isnot availablewhenusing
theoptional5902 output transformer.
FIGURE 2
Balanced low impedance (800Cl ) load uptoa
level of-13dB with optional5901microphone
input transformer.
WARNING: Installation ofthe 5901accessory
transformerrequiresinternalmodification bya
qualifiedservicetechnician.
NOTE: When the JBL 5901universalmicrophone
input transformer is used, the microphone pad
andcontrolcannot be used to preventtransformer
saturation if excessive input signallevelsoccur.
See SPECIFICATIONS (InputOverload) for
maximum input.
Unbalanced highimpedance (82kfl).See
SPECIFICATIONS (InputOverload) for
maximum input.
FIGURE 3A
3
FIGURE 3B
Phono L andR
RIAA equalization. 47kn impedance,using MIC1
potentiometer.
WARNING: To change MIC1 to PHONO
requiresinternalmodification bya qualified
service technician.
NOTE: Microphoneattenuatorswitch forMIC1
does not function in phonooperation.
Line Inputs
1 and 2
Balanced highimpedance (15kn) source uptoa
level of+21dB with optional 5195 matching/
bridging transformer.
WARNING: Installation of5195 accessory
transformerrequiresinternalmodification bya
qualifiedservicetechnician.
Balanced 600n sourceusing a 620n , 1 /2W
resistor connected to terminals HIandLO,uptoa
level of+21dBm with optional 5195 matching/
bridging transformer.
WARNING: Installation of 5195accessory
transformerrequiresinternalmodification bya
qualifiedservicetechnician.
Unbalanced highimpedance (15kn) or600 Cl
source using a 620n , 112W resistorconnected to
terminals GNDandDIRECT.
Main Outputs Mic
1-6
5901 5195

Service andMaintenanceInstructions
The following proceduresaredesignedto assist inthe
isolationofmalfunctions.Theoperationsdescribed
shouldbeundertakenonlyafteraninvestigationofall
external connectionsandadjustmentshasindicated,
beyondreasonable doubt, thattheproblemisactually
internal.
WARNING: Disconnectthe5302mixer from thepower
source beforeperformingserviceoperationsor
replacingcomponents.
VoltageConversion
The 5302mixercanbeoperated from eithera 120V
AC or240V AC,50/60Hzsource.Thelinevoltage
selector terminalstrip, TB1, Figure4,changesthe
primaryconnectionsofthepowertransformer.Usethe
following proceduretochangethevoltagerange:
1. Removethe12 screws which hold thetopcover
tothe chassis.
2. Toconvert from 120V ACto240V AC,remove
thetwoterminalstripjumpers,Figure5A.Install
onejumperonly,perFigure5B.
3. Changethelinecordand/orattachingplugto
matchthesupplysourcereceptacle,orusea
120 V to240V ACadapter(notprovided).The
adapteraswellasthepowersupplycordand/or
attachmentplugusedforthe240V ACmodein
theU.S., Canada and Japan shallbe both UL
listedandCSACertifiedforuse with saidpower
source receptacleandwiredperTable1.Foruse
inothercountries,adapter,linecordand/or
attachmentplugselectionshallbebasedonlocal
regulationsgoverning240V AC,50/60Hz
supplysource.
WARNING
THIS SECTION OFTHEMANUAL
CONTAINS SERVICE INSTRUCTIONS
FOR USEBY QUALIFIED SERVICE
PERSONNEL ONLY.
FIGURE 5B
TABLE 1
Line CordConnections
Country WireColorCode TerminalStrip
(TB 1-4)
J 12-1
Ground Lug
(E2 )
U.S., Canada and Japan
Black
White
Green
Attached Attached
Attached
Europe
Blue
Brown
Green/Yellow
Attached Attached
Attached
4
FIGURE 4
P11
SHORTING
PLUG
(58978)
FIGURE 5A

To installtheoptionaltransformer,Figure6A,
(ModelNo. 5902):
1. Removethetopcover.
2. Place theoptional output transformerinthecorner
ofthe chassis, perFigure11,andsecureitatthe
twoholesinthe bottom ofthe chassis withthe
hardware provided,perFigure6B.
3. RemovetheMolexshortingplug, P11, JBLpartNo.
58978 fromtheterminationbracket,Figure4.
4. AttachtheMolexmaleconnectorfromthe output
transformerto J11 ontheterminationbracketper
Figure 6C.
5. RecalibrateVUmeterper METER CALIBRATION
PROCEDURE.
NOTE: Ifmetercalibrationprocedureisnot
performed, output levelwillbea minimum
of+2dBmhigherthanindicatedonthe
Vu meter.
FIGURE 6A
WARNING
THIS SECTION OFTHEMANUAL
CONTAINS SERVICE INSTRUCTIONS
FOR USEBY QUALIFIED SERVICE
PERSONNEL ONLY.
FIGURE 6C
InstallationofOutputTransformer
FIGURE 6B
5

InstallationofMicrophoneTransformers
To installtheoptionalmicrophonetransformer,
Figure 7A,(ModelNo.5901):
1. Removethetopcover.
2. Removethetwocopperjumpersbetweenterminal
8& 9 and4 & 5 ofXT1-XT6,Figure7B.
NOTE: Removeonlythosejumpers from the 9-pin
sockets inwhichoptionalmicrophone
transformersaretobe used.
3. InstalltheoptionaltransformersperFigure7C.
WARNING
THIS SECTION OFTHEMANUAL
CONTAINS SERVICE INSTRUCTIONS
FOR USEBY QUALIFIED SERVICE
PERSONNEL ONLY.
FIGURE 7A
JUMPER
(PINS4 & 5)
JUMPER
(PINS8 & 9)
FIGURE 7B
InstallationofLineTransformers
To installtheoptionalmatching/bridgingtransformer,
Figure 8A,(ModelNo.5195):
1. Removethetopcover.
2. Installtheoptionalmatching/bridgingtransformer
as follows:
A. Line1 — XT7(Figure8B)
B. Line2 — XT8(Figure8C)
FIGURE 8A
6
FIGURE 7C

WARNING
THIS SECTION OFTHEMANUAL
CONTAINS SERVICE INSTRUCTIONS
FOR USEBY QUALIFIED SERVICE
PERSONNEL ONLY.
Jumper Installation
To installmicrophonejumpers,Figure7B:
1. Removethetopcover.
2. Removethe optional microphonetransformer,
(ModelNo.5901) from theappropriate 9-pin
socket andinstalltwo#12AWGcopperjumpers
perFigure9.
FIGURE 9
7
FIGURE 8B
LINE 1
FIGURE 8C
LINE 2
JUMPER
(PINS4 & 5)
JUMPER
(PINS8 & 9)
REMOVE
Conversion toMIC#1toPHONO
1. Removethetopcover.
2. AdjusttheslideswitchperFigure10.
SWITCH SHOWNIN
PHONOPOSITION
FIGURE 10

Item
JBL PartNo. Qty. Description
1 55630 11 knob
2
10630 10 nut
3
59026
1
ribbon cable assy.
4 59039
1
front panel
5
52886 1
knob
6
54969
1
knob
7 55098
1
VU meter
8 59874-01
1 potentiometer
9
59893
1
LED mounting lens clip
10 89508
2
Keps nut,6-32
11 54953 1 powerswitch
12 59292
1
#10 flat washer
13
59894 1 greenLED
14 59031
1
switch
15
57807 2
Phillips-head,4-40x1-1/4
16 59848 4
type B screw,6x3/8
17 59848 11 type B screw,6 x 3/8
18 *59160
1
chassis
19 10699
2
Phillips-head,6-32x5/16
20 59848
2
type B screw,6x3/8
Note: 1.NoJBLreplacement,3 mmset.
'Part No.shownforreference only, notavailable from JBLasa complete assembly.
WARNING
THIS SECTION OFTHEMANUAL
CONTAINS SERVICE INSTRUCTIONS
FOR USEBY QUALIFIED SERVICE
PERSONNEL ONLY.
Item
JBL PartNo. Qty. Description
21 *59190
1
PC assembly
22 58745-02
1
cable
23 58745-02
1
cable
24 *59024
1
mounting control bracket
25 59065
1
accessory output transformer,5902
26 11496
12267
2
2
4-40nut
#4washer
27 57807
2 spacer
28
2
accessory linetransformer,5195
29
6 accessory mictransformer,5901
30 *59205
1
PC assembly
31 59875
1
bracket
32 54727 Phillips-headscrew,4-40x 3/16
33
59027
1
cover
34 59060 spacer, 1/4ODx1/2
35
59029
1
monitor jack
36 59180-02
1
mastervolume control
37
note 1 meter mounting set1
38 •59009
1
termination bracket
39 59139
1
powertransformer
40 59848 12 type B screw,6x3/8
VU Meter CalibrationProcedure
1. Meter calibration without accessory output
transformer5902.
A. Removethetopcover.
B. ConnectanACVTVMtothe MAIN OUTPUT
screw terminal board,DIRECTandGNDand
terminate with a 600Cl load.
C. Connecttestoscillator600Cl output,
terminated in600Cl load totheLINEINPUT1
screw terminal board DIRECTandGND.
D.Setthe5302controlsasfollows:
MASTER LEVEL MAX.
LINE 1 MAX.
METER RANGE 0 dBm
BASS 0
TREBLE 0
E. Settestoscillatorfrequencyto1 kHzatan
amplitude of-30.4dBm.
F. Adjustthemeter calibration control, VR11,
through the access hole onthetopofthe front
panelperFigure11,for0 VUindication,
0dBmout.
2. Meter calibration with accessory output
transformer5902.
A. Removethetopcover.
B. ConnectanACVTVMtothe MAIN OUTPUT
screw terminal board,HIandLOand terminate
with a 600n load.
C. Connecttestoscillator600Cl output,
terminated in600Cl load totheLINEINPUT1
screw terminal board DIRECTandGND.
D.Setthe5302controlsasfollows:
MASTER LEVEL MAX.
LINE 1 MAX.
METER RANGE 0 dBm
BASS 0
TREBLE 0
E. Settestoscillatorfrequencyto1 kHzatan
amplitude of-31.6dBm.
F. Adjustthemeter calibration control, VR11,
through the access hole onthetopofthe front
panelperFigure11,for0 VUindication,
0dBmout.
8