Shure HTS5000 Operating and installation instructions

Price $7.50
HOME THEATER SOUND
HTS5000
SURROUND AUDIO PROCESSOR
SERVICE INFORMATION
MODELS: HTS5000, HTS5000E, HTS5000J
Home Theater Sound Division
SHURE BROTHERS INCORPORATED
222 Hartrey Avenue
Evanston, Illinois 60202-3696
Copyright 1W. Shurm Bmlhn Inc
nrsra (GO UlO
Prlnfed In U.S.A.
PalentPIndlnp

DESCRIPTION
-
OUTPUTS TAPE
1
--m -tg
0
0 0 , &-go
-
The HTSWSurround Audio Processor provides a
theater-sound environment in the home. This Home
Theater Sound (HTS) system decodes Dolby1 stereo
sound encoded Invideo discs, video tape, and broad-
cast television. The HTS5000 provides up to six chan-
nels of audio output: left, center, right, two surround
channels, and a subwoofer. Acra-Vector* decoder clr-
cuitry replicates the directional accuracy of the finest
theater sound equipment. True digital time delays pro-
'de the same performance,freeof distortion andnoise.
s inthe theater.The Acoustic Space Generator creates
the same Immersioninsound as Inthe theater, but us-
ing a minimum number of speakers. All these features
help to re-createthe sound field of an original theater
showing. The HTS5000can also producesimulated sur-
round sound from ordinary stereo, and even from mono
sources.
Three models of the HTS5000 are presently
available: the HTS5000, for 120 Vac,
60 Hz operation;
the HTS5000E, for 220.240 Vac, 50160 Hz operation; and
the HTS5000J, for
100 Vac, 50160 Hz operation. All three
models are describedInthis document.
A basic HTS Surround Sound Installation employs
four loudspeakers and two stereo amplifiers; a com-
plete system uses six loudspeakers and three stereo
amplifiers to reproduce the theater experience. The
system operatesasfollows: ExclusiveAcra-Vectorclr-
cuits enhance the directional accuracy of the repro-
duced sound field. Inthe front, this creates a spaclous
stereo panorama with realistic "motion" effects from
moving sources. In the basic system, dialogue
originates from a phantomcenter channel. However,to
keepthe acoustic image properly located regardless of
where the listener sits in the room, the addition of a
center front loudspeaker isrecommended.
The surround channel signals are delayed according
toa user-selecteddigitaldisplaysetting chosen for the
particular room envlronrnent. Then an Acoustic Space
Generator processes the delayed slgnal to further
nhancethe perceptionof spaciousness.
The finishing touchtocompletethe systemisanadd-
edsubwoofer. Becausethe film industry uses very low-
frequency audio as an Integral part of the creation of
mood and place. uslna a subwoofer reinforces the
theater illusion and lrrt~nslfiesthe versimilitude of the
performance. To conveniently add a subwoofer, the
HTS5000 has a subwoofer output containing only low-
frequencyinformation(below80 Hz). The subwooferwill
smoothly extend the response of typical bookshelf or
satellite speakers, or It can be used to augment the
bass output of larger speakers. (The left, center, and
'
right outputs are full-frequency-rangeand also contain
' this low-frequencyinformatlon.)
:
The HTS5000 front-panel controls and displays ln-
clude push-button operating mode selectors: Dolby
Surround, synthesized-surroundstereo or mono, and, by
means of adefeat button, pure stereo or mono. There Is
'
alsopush-buttonchokeof the audio sourcefromeither
Left and Right inputs or Tape Monitor Return inputs.
Rotary knobs on the front adjust the following: Input
level, with a five-LED display; input balance, with an
LED for visual determination of correct balance; digital
delaytimeto bestsuittheparticularlisteningroom;and
volume andsurround levels. An overriding wiredremote
control lets the listener adjust surround and overall
volume levels from the listening position. The remote
also permits muting of the audio outputs.
A four-
channel graphic display provides visual demonstration
of the surround characteristics of the input signal.
The HTS5000 rear panel includes left and right audio
inputs; outputs for front left and right and surround left
and right channels;
a separately switched front-center
output jack; anda subwooferoutput jack. Tape Monitor
Sendoutputs and Left and Right Return inputs are also
Included. These audio input and output jacks are all
phono types. In addition, front- and rear-paneleighth-
Inch-diameter phone jacks accommodate the wired
remotecontrol.
The HTS5000lnstallationlOperator's Manualcontalns
, specifications, troubleshooting and safetylmain-
tenance Information.
7. Manufacturedunder llcennr fromDolby Laboratories Llcenslnp Cor
poratlon. Additionally licensed under one or more of the following
' patents: U.S. numbers 3,632,886, 3,746,792, and 3,959,590; Canada
numbers
1,004,803 and 1,037,Bn. 'Dolby* and the double-D symbol are
trademarks of Dolby Laboratories Llcenslnp Corporation
'Patent pendln~.

SERVICE
This section contains lnformatlon on replacement
parts, servlce access, fuse replacement, and complete
equipment checkout. If difficulties inHTS5000 installa-
tion or operatlon are experienced, the Troubleshooting
Guide Inthe installationlOperator's Manual should
be
consulted. If that information fails to correct the pro-
blem, the checkout procedure given here can
be per-
formed.
Notethat
circuitry lnformatlonisonlygivenwhere Itcan
be of use in field servlce; most internal adjustments
cannot be made and some circuit blockscannot
be ser-
viced without factory test equipment.
Voltages inthis equipment are hazardous to life.
Nouser-serviceableparts inside. Refer all servic-
ing to qualified servlce personnel.
Replacement Parts
Parts that are readily available through local elec-
tronic partsdistributorsarenot shown onthe accompa-
nying Parts List. Their values are shown on the Circuit
Diagram. Commercial parts not readily available and
unique parts are shown on the Parts List and may be
m-dereddirectly from the factory.
'he commercial alternates shown on the Parts Llst
are not necessarilyequivalents, but may be used Inthe
event that direct factory replacements are not im-
mediately available. To maintain the highest possible
performance and reliability, Shure fgctory replacement
parts should beused.Whenorderingreplacement parts,
specify the Shure replacement part number, descrip
tion, product model number, and serial number.
External
Parts
The following paris can be removed and replaced
without disassemblingthe
HTS5000:
Remote Control (A13)
Rotary Knob (MP1-Me)
Foot (MFS-MP9) .
All five front-panelknobsareeither pull-offor setscrew-
retained types and are interchangeable. Setscrew-type
knobs must be unscrewedfrom
inside the front panel
before removingthe knobs.
Service Access
Disconnect the
HTS5000 from Its ac power source.
Remove two cover-securing screws from each side
panel. Slide the cover back toward the rear of the unit
and upwardto remove.
Fuse Replacement
To replacethe fuse or fuses inthe HTS5000, discon-
nectthe linecordfromtheac sourceandremovethetop
cover as describedabove. Locatethe defective fuse on
? printed circult board adjacent to the power
-.ansformer, and replace with a fuse of ldentlcal slze
and value (see table). Note that all fuses are slow-blow
(time lag) types.
opt~tlonat Fuw(r)
HTSSOOO* 120 Vac, 60 Hz
0.34 250V 3AG, AGC
HTWE 2MZa0 Vac.
0.164 2WV T160mAnWV
1 .OA, 250V
HTSSoOQl 100 Vac, 375 mA. 125V
50m0 HZ 1.04 2SV
'Also conlalns non-replaceable thermal cutout Inside power
trmsfomr.
--
T% Conditions
The HTS5000 test procedures that follow are based
on the following test conditions:'
Ac power source: 120Vac,
60 Hz
Output Level Trimmers (bottom of chassis): full
clockwise
SwitcNcontroi posltions:
Center Inlout switch: In
Volume control (remotecontrol removed):
Maximum(clockwise)
Surround Level control: Maximum(clockwise)
Digital Delay (ms) switch: 16
milliseconds
lnput Balance control: Set to null position (LED
above control lit) with input slgnal appliedto left
and right channels
Tape Monitor switch: Out (off)
Synthesized SurroundDefeat switch: Out (off)
'Mode swltches are set as specified dependingon measurrmenr;
lnput LevelcontrolIs set par the Preliminary Checkout procedure.
Test signals are applied only to the channels
specified in each section of the test procedures. The
voltages listed in each section are ac mVrms unless
otherwise listed.
No significant dc potential (>50 mV)
shouldbe present at any audio output jack.
When feeding audio test signals to the HTS5000, do
not use excessivedrive levets. With the lnput Levelcon-
trol set to maximum (ctockwise), distortion
wlll appear
with approximately0.3V at the input terminals.
Test Equfpment
Use a high-quality audio generator to supply the
signals to the
HTS5000 inputjacks. The distortioncon-
tributionof the
HTS5000 isnegligible;ifa lowdistortion
audio signal is used for testing, little distortion
will be
found at the test polnt signals.
Ac signal voltages should
be measuredwith a hlgh-
Impedanceac voltmeter(2100-kilohminput impedance).
Dc voltages can be measured with a voltohmmeter
(~100-kilohminput impedance).
PrellmlnaryCheckout
To perform all testing, the unit must be factory-
calibrated and warmed up (at least 5 minutes).
After warmup, apply a
100 mV, 1 kHz signal to both
channels.With the unit in Dolby mode, adjust the lnput
Levelcontrol for
500 mV at thecenteroutput.Adjust the
lnput Balance control for minimum output at the left
surround output. Under these conditions, the unit
should providethe voltageslistedinthefollowing table
withln &2 dB.

Mode Switch: Dolby Surround
1 kHz, 100 rnV Input to:
-- <M rn~ <ZOrn~ X)O rn~
Center
Right <5 rnV 380 rnV
en Sunound c20 rnv cX) rnV cro rnV
Ri~htSurround <a mV c20 rnV c10mV
ModeSwitch: Stereo
lJsHr,lol,mVkprlto:
Center
Right <5 rnV 270 rnV
Lett Surround XY) rnV 533 rnV el0 mV
533 mV clO rnv
Mode Switch: Mono
Before PreliminaryCheckoutInthe mono mode, adjust
the Mono Enhance Adjust control (located on the
chassis bottom). With the unit Inthe mono mode and a
100 mV, 1 kHz signal applied to both channels, adjust
the MonoEnhanceAdjust control for
300 mV at the left
output.
Output
1 kHr, 100 rnV Input lo both chrnnols
Center
Right
I eft Surrwnd
ht Sunound 280 rnV
Subwoofer Output
Properoperationof the subwooferoutput can
be veri-
fied by measuringthe following voltages.
If the above voltages are measured, the
HTS5000 is
operating correctly. If any voltages are outside the
specified limits, the following procedure will aid In
isolating the major circuit block that is causing the pro-
blem. Any circuit block (visibleon the printedcircuit as
an outlinedblockof components), withthe exceptionof
the Directional Enhancement
(A6), Direction Sensing
(A7) and Digital Delay (A12) Blocks, can be serviced
usingconventional circuit troubleshooting techniques.
Mode Swltth
Mono
Dolby
Checkout Procedure(cover removed)
PowerSupply Block (A 1 1)
1 kHz, 1W mV lnpul io both channels
190 rnV
270 mV
lnpulBlock (A2)
Component mersud (to ground)
Cathodeof dlode Dl105
Anode of diode Dl100
Cathode of diode Dl110
Mode switch: Dolby. Proper operation of the lnput
Block.is verified by the following test point TP2.A and
TP2B voltages.
Msrrunnwnt
+ 15 Vdc
-15 Vdc
+5 Vdc
Use extreme care when measuring voltages near
the 120 Vac power supply fuses (Fl100, F1101.
F1102).
Directional Enhancement (A6) and Direction Sensing
(A7) Blocks
Tost Pdnt
Proper operation of the Directional Enhancement and
DirectionSenslng-Blockswas verified inthe Preliminary
Checkout procedure In the Dolby mode.
IMPORTANT: If Incorrect voltages were obtained in
the PreliminaryCheckout,the unit must be returnedto
Shure Brothers Service Department. The Directional
Enhancement (A6) and Direction Sensing (A7) Blocks
are notfield-serviceable.
DigitalDelayBlock
(A12)
Proper operation of the Dfgital Defay Block was
verified inthe PreliminaryCheckout procedure.IMPOR.
TANT: If incorrect voltages were obtained in the
Preliminary Checkout, the unit must be returned to
Shure Brothers Service Department. The Digital Delay
(A12) Block isnotfleld.serviceable.
DolbyNoiseReduction Block (A3)
Proper operation of the Dolby NoiseReductionBlock
isverified by the following voltages atTest PointTP3A.
Mode switch: Dolby Surround
Input to: Left Channel
1 kH& 100 mV impul to:
Output LevelControlandRemote Block (A9, AID)
Proper operation of the Output Level Control and
RemoteBlockswas verifiedinthe PreliminaryCheckout
procedure inall mcdes.
LORChrnnel
TP2A
I
4W rnv
TF2B 4W rnv
Input Ftvqurncy
LOO Hz
4 kHz
RemofeControl Voltage
The Volume (R1016) and Surround Level(R1014) con-
trols can be checked
by turning them both to their
minimum (counterclockwise) positions and measuring
the following voltages with the wired remote control
disconnected from the
HTS5000.
Test Point TPlOA . .... . . .. . . . . . .. . . . . . .. . . 4 Vdc
PotentiometerR1014(ungrounded side)
. .... . 4 Vdc
WiredRemote Control Unlt
~eslstance.readings made at the miniature stereo
phone plug of the
HTS5000 remote control unit will ln-
dicate properoperation.
Both Chrnnols
m rnv
<a rnv
Input hre1
100 mV
730 rnv
703 rnV
10 mV
m rnv
35 mV
Mersuternont
Slctevs lo rlng
Sleeve to tlp
(Mula on)
Sleeve lotlp
(Mule off)
SwltcWontrd
Mute
Surround Level
Surround lewl
Volume Level
Surround Lsvel
Volume hl
SurroundLml
Volume Level
Volume Level
5.fflng
OnorOH
Mlnlmum .
Maxlmurn
Mu-Mln
MaxMIn
Mu-Mln
Mu-Min
Mlnlmum
Maxlmum
Rbadlng
BW120
80012000
>25Q
No chmw
No cbnw
16OBl000
No chrnps
850200
cm

PARTS LIST
The following pages contain a replacement parts list
for the HTS5000. Part numbersnot shown on the parts
list(exceptfor Directional Enhancement, DirectionSen-
sing, and Digital Delay Block parts which are also not
listed) are readily available through local electronics
parts suppliers. Inthese Instances, the circuit diagram
shows only the reference designation and value of the
standard parts.
SERVICE ILLUSTRATIONS
Following the parts llst are an HTS5000 block
diagram, andclrcult diagrams andprinted circuit board
layouts, including the basic HTS5000, HTS5000E, and
HTS5000J power supplies.
Note that circuit Information on the non-field-
serviceable Directional Enhancement, Direction Sens-
ing, and Digital Delay Blocks
(A6, A7 and A12) is not in-
cluded.
Power Supply (All) parts shown on the circuit
diagramwith
a A are critical and must be re
placed
only with identical parts as specified by
Shure Brothers.

REPLACEMENT PARTS LIST
Reference
Deslgnatlon
A13
C202,CXH
C301,W05-W06
C303,d312
C309
C400-C407
CllOO,C1106,
CllfO '
C1102,C1107,
C1111
D416D420
050005(33
D50a
0890
D912.D914
D1100-Dl110
FllW
FllOO
F1101
FllOl
J200
J201
J202
J9W,J1000
L1
MPI-MPS
MP6-MP9
QB00-QB01
R107, R309
R211
Description
RemoteControl Assembly
Capacitor, Electrolytic, 2ZrF, 6.3V
Capacitor, Electrolytic, 1pF. 50V
Capacitor, Electrolytlc, 10rF, 16V
Shura Part Number1
CommerklalAlternate
Shure 90A8248
Shure 86V628; Mallory TAC226KOlOP05
Shure 86S628; Cornell-DubilierNLWl.50
Shure 86Y628; Cornell-Dubilier
Capacitor, Electrolytic, 220 pF, 25V
Capacitor, Electrolytic, 2.2 rF, 25V
Capacitor, Electrolytic, 10pF, 35V
Capacitor, Electrolytic, 1000pF, 35V
Light-EmlttinpDiode, Clear
Light-EmittlngDiode, Green
Light-EmittingDiode, Red
Llght-EmittingDiode, Yellow
Zener Diode, 5.6V
Diode, Silicon Rectifier, 100V, II2A
Fuse, SIO-Blo, 3AG, 0.34 250V
(HTS5000)
Fuse, Time Delay, 375 mA, 125V
(HTS5OW.l)
Fuse, Time Lag, 0.16A, 250V
(HTS5000E)
Fuse, SIo.Blo, Pigtall, 2AG, 1A, 250V
(HTSWE, HTS5000J)
PhonoJack, Dual
PhonoJack, 4-Posltion
PhonoJack, &Position
PhoneJack, Miniature, Stereo
Ferrlte Balun
Core (HTS5000,
HTW)
Knob, Front Panel
Feet
Transistor, NPN
Potentiometer,Trim,
1Ok
Potentiometer, Dual, lOOk
NLWIO-16
Shure 86x629; Nichlcon 1 E220MP.A
Shure 86AB628; Mallory
TAC225K025P02
Shure 86AA628; Mallory CTL-
lNM050PlA
Shure 86J629; Sprague503DlWF050SJ
Shure &A841 1
Shure B6A8410
Shure8668410
Shure 86C8410
Shure 86A8409; Motorola lN5232A
Shure 86A404; Motorola IN4002
Shure 805159; Littelfuse Ser. 313000
Shure 86A6059; San-0SDLC
Shure 80D380; Schurter
034.3109
Shure80AgD52; Llttelfuse Ser. 230001
Shure95A8127
Shure95A8128
Shure 95A8129
Shure 95A8130
Shure80AB051
Shure 31AB010
Shure 66AB002
Shure86A350; Motorola 2N5210
Shure 468084
Shure 46A8019

REPLACEMENT PARTS LIST
Reference
Designation
R223
R1014, R1016
~1015
S1001S102
S103/S104
TI
TI
TI
Urn, U401
U300
U301
U400
USCK)
U501
UllOO
UllOl
U1102
W1
W1
W1
W2
Description
Potentiometer,10k
Potentiometer,1k
Potentlometer,Trim, 50k
Swltch, 3Gang, Push-Button
Swltch, Z-Gang, PushButton
Transformer, Power (HTS5000)
Transformer, Power(HTS5000E)
Transformer, Power (HTS5000J)
Integrated Circult, JFET Input Op Amp
Integrated Clrcult, Dolby Nolse
Reduction Circuit
Integrated Circult, Dual
Op Amp
lnteprated Clrcult, Ouad Op Amp
Integrated Circuit, Dual Comparator
Integrated Circult, Quad Comparator
Voltage ~e~ulato<
- 15V
Voltage Regulator, + 15V
Voltage Regulator, +SV
Line Cordand Plug, 1.8m (6 ft)
(Hf S5ow
Llne Cord (wlthout plug, with Ll), 1.9m
(6 ft 4 in.) (HTS5000E)
LineCord and Plug, 2m (6 ft 6 In.)
(HTSsoOar)
Cable, Stereo Pair
Shure Part Number1
Commercial Alternate
Shure 4688019
Shure46BB013
Shure4688014
Shure 95A8120; Alps SUF-S001
Shure 95A8121; Alps SPUF24
Shure 51AB029
Shure 51AB027
Shure 51AB028
Shure86-A; TI TL074AN
Shure 86A8856A;Sipnetics NE645N,
NE650N
Shure BGA811A; RaytheonRC4559NB
Shure 86ABOBA; Raytheon RC4156DB
Shure 86A881BA;TI LM393P
Shure 86A806A; Raytheon LM339DB
Shure86A810A; Motorola MC7915CT
Shure 86A809A; Motorola MC7815CT
Shure 86A8830A; Motorola MC7B05CT
Shure WFW
Shure90A8289
Shure95B8161
Shure95A8132

REPUCEMENT PARTS LIST
REMOTECONTROLASSEMBLY A13
Shure Part Number1
Commercial Allemate
Rohm SLR-34UR3
Shure 65A8078
Shore 65A8078
Shure 658807E '
Shure 65-n
Radio Shack 274-284; Shure 95A1000
Shure 46A8020
Shure 46B084
Shure 55AW1; Alps SST012
Shure @JAB251
Reference
Designation
Dl01
MP1
MP2-MP3
MP4
MP5
Pl
R101-RIM
R103
SlOl
W1
Description
Light-EmlttingDiode, Red
Button, Swltch (Mute)
Button, Variable Resistor(Volume,
Surround)
Case, Front
Case, Back
Connector, Miniature Stereo Phone
Plug
Resistor, Variable,
lk
Potentimeter, UnearTaper, 5Qk
Swltch, Slide, SPST
Cable and Plug Assembly,
6.1m (20 ti)

L -- LEFT
R - RICH1
c - crxrrr
s - runnowno
-~oolc www
--msGML8YIDUlYOOamm%MLTYIL*
------
%I.
L
C
n
11
MODEL HTS5000
SURROUND AUDIO PROCESSOR
BLOCK DIAGRAM

NOTES TO SERVICE ILLUSTRATIONS
The notes below apply to the partial circuit diagrams
and printedclrcult board layouts shown on the follow-
ing pages. As previously stated, information is
not in-
cluded on the Directional Enhancement Block (A@,
Direction Sensing Block (A7). and Digital Delay Block
(A12). In addition, only partial information is given on
theOutput LevelControl
& RemoteBlock(A9, A10). This
is done because the equlpment required for
troubleshooting, adjusting and repairingthese circuits
is not availableoutside Shure's factory.
Remember that
all Internal adjustments are con-
sideredfactory-serviceableonly. Field repair should
be
limited to replacing known defective parts, repairing
defective connections,etc. Attempting to calibrate the
HTS5000 in the field without proper equipment (in-
cluding computer setup) can result in serious perfor-
mance problems.
1. All resistors are 114W, 5% unless otherwise
specified.
2. All capacitors in microfarads and 50 volts or more
unless otherwise specified. Electrolytic capacitors
shown inmicrofarads
X volts.
3. The following symbols denote:
PC Board
A Chassis
Ground
" Ground
4. The printedclrcult boardissubdivided intosections
where the first two digits of the part number
describe Its"block."
A1 - ModeSwitching Block
A2 - lnput Block
A3 - Dolby NoiseReductionBlock
A4 - DirectionalDisplay Block
A5 lnput Level Display Block
A6
- DirectionalEnhancementBlock
(drawings not supplied)
A7 Direction SensingBlock(drawingsnot supplied)
A8 - lnput Balance Display Block
A9,10 - Output LevelControl & Remote Block
(parfial drawings supplied)
All
- Power Supply Block*
A12 - Digital Delay Block(drawings not supplied)
A13 - RemoteControl Assembly
'Separate drawings provlded for the HTSXK)O, HTSWE and
HTSXKXU.
5. To eliminate risk of fire or electrical shock, allcorn-
ponents In the power supply indicated
wlthA are critical components and must
be
replaced only with identical parts as specified by
Shure Brothers lnc.

MODE SWITCHING BLOCK A1
(snow 11 (SJ+OW I# I----- gsmm -------A
-1~. POSITIOW~ -YOR)UL- PD~I~ID*) . ~a oo~er OURROUHD- ~OS~TIMO

INPUT BLOCK A2

INPUT BLOCK A2

DOLBY NOISE REDUCTION BLOCK A3

DOLBY NOISE REDUCTION BLOCK A3

DIRECTIONAL DISPLAY BLOCK A4

DIRECTIONAL DISPLAY BLOCK A4

INPUT LEVEL DISPLAY BLOCK A5

INPUT LEVEL DISPLAY.BLOCK A5