Harman Kardon SUBTS-14 Service manual

harman/kardon

SUB-TS14

(HKTS 14 SUBWOOFER)

SERVICE MANUAL

harman/kardon, Inc.

250 Crossways Park Dr.

Woodbury, New York 11797 Rev0 4/2004

SUB-TS14

harman/kardon

CONTENTS

BASIC SPECIFICATIONS . . . . . . . . . . . . ……………………………………. . . . 1

DETAILED SPECIFICATIONS. . . . . . . . . . . . . .. . . . . . . . . ………………….. …2

CONTROLS & CONNECTIONS . . . . . . . . . . . . . .. . . . . . . . . ………………….. 4

SPEAKER CONNECTIONS……………………….………..……. . . .. . .. . . . .. . .. 6

OPERATION……. . . . . .. . . . . . . . .. .. . . . .. .. . . . . ……………………………….9

BASIC TROUBLESHOOTING GUIDE . . . . . . . . ………………………………...10

TEST PROCEDURE. . . . . . . . . . . …………………………………………………11

UNIT EXPLODED VIEW. . . . …………… ……………. .. ………... . . .. .. ... . … . 12

AMPLIFIER EXPLODED VIEW. . . . ………………... . .. ………... . . .. . . .. . .… . 13

BLOCK DIAGRAM . . . . . . . . . . . . . .. . . . . . . ……………… . . . . .. . .. . .. . . . . 14

PCB DRAWINGS. .. . . . . . . . . . . . . . .. . . . . ……… . …………. . . . .. .. .. . .. . . . 15

ELECTRICAL PARTS LIST …………. .... . .. . . . …………………………... … . . 19

SEMICONDUCTOR PINOUTS . . . .. .. .. .. . . . .. . ……………..………..………. .24

SCHEMATIC DIAGRAMS . . . . . . . . .. .. .. .. . . . .. . ………………………..……. .25

PACKAGING. . . . . . . . . . . . . .. . . . . . . ……………………… . . . . .. . .. . .. . . . . 28

SPECIFICATIONS

Amplifier Power (RMS) 200 Watts
Driver 12" woofer, Bass Reflex Enclosure
Inputs Stereo Line Level, dedicated Subwoofer (LFE)

and Speaker Level with gold-plated binding posts

Outputs Speaker Level with gold-plated binding posts
Frequency Response 25Hz – 120Hz (Filter switch ON)

25Hz – 450Hz (Filter switch OFF)
Dimensions (H x W x D) 20-1/2" x 14-1/2" x 14-1/2"

521mm x 368mm x 368mm
Weight 48 lb/22kg

Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications
unless otherwise stated.

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SUB-TS14

2

HKTS 14 Sub 200W Powered Sub/ Plate Amp

harman/kardon

LINE VOLTAGE Yes/N

Parameter
Amp Sectio

Type (Class AB, D, other) D n/a
Load Impedance (speaker) 3.5 Ohms
Rated Output Power 200 Watts
THD @ Rated Power 0.08 %
THD @ 1 Watt 0.15 %
DC Offset 5 mV-DC

Damping factor 16 n/a

Input Sensitivit

Input Frequency 50 Hz
Line (L&R) Input 220 mVrms
SUB (LFE) Input 125 mVrms
Speaker/Hi Level Input 3.4 Vrms

Hi Level Max. Input Voltag

Signal to Noise Rati

SNR-A-Weighted 85 dB
SNR-unweighted 62 dB
SNR rel. 1W-unweighted 64 dB

Residual Noise Floor 1.2 mVrms

Residual Noise Floor 0.8 mVrms

US 120vac/60Hz Yes 108-132 120 Vrms

Nonimal

Specification

Hi/Lo LineNom. Uni

Unit

32 Vrms

QA Test

Limits

n/a
n/a

150

0.1

0.5
20

10

n/a

154 - 308

87 - 175

2.4 - 4.8

30

82
59
59

3.0

2.0

Conditions

Nominal
50 - 250 Hz, 1 input driven, limiter off
22k filter
22k filter
@ Speaker Outputs

Measured at amplifier board

Nominal Freq.
To Rated Power
To Rated Power
To Rated Power

Nominal Freq., Min. Volume

relative to rated power
relative to rated power
relative to 1W Output
Volume @max, using RMS
reading DMM/VOM (or A/P)
Volume @max, w/ A/P Swept
Bandpass Measurement (Line
freq.+ harmonics)

Normal Operatio

Note

Notes

Bridge type amplifier, None of the
speaker terminals must be
connected to system GND at any

Measured at the speaker at speak
output terminals on the amp board.

Single input drive
SUB (LFE) input driven onl
(20 dB below Line In), Single input

-Weighting filte
22k filte
22k filte

Input Impedanc

Line Input (L, R,LFE) 10K ohms
Speaker/Hi Level Input 4.7K ohms

Filter

L&R Fixed Low-Pass Filter 160 Hz
SUB (LFE) Low pass Filter 270 Hz
Subsonic filter (HPF) 3rd Order 25 Hz

Limiter

THD at Max. Output Power

Features

Auto - On -Off Selection Switch YES
Phase Switch 0-180 deg
Filter On/Off Switch YES
Volume Pot Taper (Lin/Log) LOG
Speaker Out YES
2-Color LED power indicator YES
Power Switch YES
Fuse Holder YES

Input Configuratio

Line In (L,R)
SUB (LFE)
Speaker/Hi Level In YES

Signal Sensing (ATO

Auto-Turn-On (yes/no) YES
ATO Input test frequency 50 Hz
ATO Level Line & SUB Input 4.0 mV
ATO Level Speaker in 35 mV

ATO Turn-on time 0.9 sec.

ATO Turn-OFF Time 12 minutes

2.0 %

YES
YES

n/a

Nominal

n/a

Nominal

140 - 180
240 - 300

22 - 28

functional Refer to ATO sectio
functional
functional
functional
functional Binding post connector L&
functional Blue: On, Amber: Stand-b
functional
functional

functional Dual RCA jack
functional RCA jack

functional Binding post connector L&

functional

2.0 - 6.0
20 - 50

functional

5 - 17

@ -6dB ref. 100Hz
@ -3dB ref. 100Hz
@ -3dB ref. 30Hz

5.0

Auto - on selection switch in Auto

n/a

mp connected and AC on, then
input signal applied
Time before muting, after signal is
removed

"
"
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3rd order fixe
2nd order fixe
3rd order fixe

Tape

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SUB-TS14

3

harman/kardon

Power on Delay tim

Transients/Pop

ATO Transient 5 mV-peak
Turn-on Transient 500 mV-peak
Turn-off Transient 500 mV-peak

Efficienc

Stand-by Input Power 8 Watts

Power Consumption @ rated power 240 Watts

Protectio

Short Circuit Protection YES

Thermal Protection YES
DC Offset Protection YES
Primary Fuse Rating

USA-Domestic 3.15 Amps

3 sec.

functional

10
700
700

12

250

functional

functional
functiona

n/a

AC Power Applied

@ Speaker Outputs
@ Speaker Outputs
@ Speaker Outputs

@ nom. line voltage

@ nom. line voltage

Direct short at output

DC present at Speaker Out leads

Type-T or Slo Blo (no DENTORI m

C Line cycled from OFF to O
C Line cycled from ON to OF

Maximum allowable input power
under nominal input voltage and
frequency, in stand-by mode (HOT
200 Watts @ 3.5 ohms and
nominal line voltage

mplifier should resume operation

after short circuit condition is

ny user accessible metal parts
should always remain at 65 degree
C or less for domestic version or 5
degree C or less for EU version.
Relay or crowbar (for driver/fir

User-replacable fuse with
UL/SEMCO rated holder.

SUB-TS14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS 5

SUB-TS 14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS

SUB-TS14

4

harman/kardon

SUBWOOFER

¡

™

LEVEL

FILTER

ON

OFF

MAX

MIN

SUB-TS14

For use with
HKTS 14 System

£

¢
∞

§

¶

•
ª

‚

ON

AUTO

REVERSE

NORMAL

SUB

LINE

LEVEL

IN

L

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IMPORTANT: CONNECT STRIPED WIRE
TO RED ( ) SPEAKER TERMINAL.

PHASE

L

R

INOUT

¡ Subwoofer-Level Control
™ High-Cut (Low-Pass) Filter Switch
£ Music-Sense On/Off Switch
¢ Phase Switch

¡ Subwoofer-Level Control:Volume

may be adjusted using the Subwoofer­Level Control.Turn the control clockwise

to increase the SUB-TS14’s volume,or
counterclockwise to decrease it.

™ High-Cut (Lo w-Pass) Filter Switch:

Placing this switch in the ON position acti­vates circuitry that cuts out all audio input
signals above 120Hz.This allows the SUB­TS14 to focus its power on reproducing the
low-frequency portion of the signal, avoiding

∞ Line-Level Subwoofer (SUB) Input

§ Line-Level Full-Range Inputs
¶ Speaker-Level Outputs

• Speaker-Level Inputs

inefficiency and distortion. Engage this filter
when using the Speaker-Level Inputs •,
or when using the Line-Level Full-Range
Inputs §, unless your receiver or processor
processes its line-level output using a low­pass filter.The filter has no effect when the

SUB Input ∞ is used.
£ Music-Sense On/Off Switch: When

placed in the AUTO position, and when the
Master Power Switch ª is turned on, the
SUB-TS14 will automatically turn itself on or

CAUTION

CAUTION

RISK OF ELECTRIC SH O CK

RISK OF ELECTRIC SH O CK

RISK OF ELECTRIC SH O CK
DO NOT OPEN

DO NOT OPEN

DO NOT OPEN

POWER

AC 120V~60Hz

ª Master Power Switch
‚ AC Power Cord

place itself in the Standby mode,depending on
whether it is receiving an audio signal.When
this switch is placed in the ON position, the
SUB-TS14 will remain on,whether or not it is
receiving an audio signal.

An LED located on top of the SUB-TS14
indicates whether the SUB-TS14 is in the
ON or STANDBY state when used with the
Music-Sense On/Off Switch £ in the
AUTO position. The LED is lit blue to indi­cate that the SUB-TS14 is receiving an

SUB-TS14

5

harman/kardon

SUB-TS14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS

audio signal and is turned on, and the LED
is lit amber to indicate that no signal is being
received and the SUB-TS14 is in Standby
mode.

When the Music-Sense On/Off Switch £
is in the ON position, the LED will be lit
blue,whether or not an audio signal is
present.

When the Master Power Switch ª is
turned off, the LED goes dark, no matter
which position the Music-Sense On/Off

Switch £ is in.
¢ Phase Switch: This switch determines

whether the SUB-TS14 subwoofer’s piston­like action moves in and out in phase with
the main speakers.If the speakers were to
play out of phase,the sound waves pro­duced by the subwoofer would be cancelled
out, reducing bass response.This phenome­non depends in part on the relative place­ment of the speakers in the room. In most
cases,the Phase Switch ¢ should be left
in the NORMAL position. However,it
does no harm to experiment with the Phase
Switch ¢, and you may leave it in the
position that maximizes bass response.

∞ Line-Level Subwoofer (SUB) Input:

Connect the subwoofer output of a receiver
with digital surround sound decoding,such
as Dolby* Digital or DTS
input bypasses the SUB-TS14’s internal
crossover circuitry,and should only be used

®

, to this input.This

with a filtered signal. If your receiver does not
have digital decoding,you should use the

Line-Level Full-Range Inputs § instead.

§ Line-Level Full-Range Inputs: Connect

the line-level subwoofer output or preamp out­put(s) of your receiver or amplifier to these
inputs.If your receiver does not have a sepa­rate subwoofer output, use a Y-adaptor (not
supplied) to bridge the receiver’s preamp out­put to the main amp input for that channel,
and connect the long end of the adaptor
to the corresponding line-level input on the
SUB-TS14. If your receiver has only a single
subwoofer output, you may connect it to
either the left or right line-level input on the
SUB-TS14, and no Y-adaptor is needed.

¶ Speaker-Level Outputs: If you are
using the Speaker-Level Inputs • on the
SUB-TS14, you should connect these bind­ing post terminals to your front left and right
speakers,remembering to maintain polarity
by connecting the (+) terminal on the SUB­TS14 subwoofer to the (+) terminal on the
speaker, and the (–) terminal on the SUB­TS14 subwoofer to the (–) terminal on the
speaker. If you are not using the Speaker-
Level Inputs •, then connect your front
left and right speakers directly to your receiv­er or amplifier. See pages 9 through 12 for
further information on speaker connections.

• Speaker-Level Inputs: Connect these
binding-post terminals to the main left and
right speaker terminals of your receiver or
amplifier, if your receiver or amplifier does
not have a line-level subwoofer output.
Remember to maintain polarity by connecting
the (+) terminal on the receiver/amplifier to the
(+) terminal on the SUB-TS14 subwoofer, and
the (–) terminal on the receiver/amplifier to the
(–) terminal on the SUB-TS14 subwoofer.

ª Master Power Switch: Place this
switch in the “•”position to power-on the
SUB-TS14 subwoofer.The SUB-TS14 will
then be either in the Standby mode or com­pletely on, depending on the position of the

Music-Sense On/Off Switch £.
‚ AC Power Cord: Make sure to plug this

cord into an active,unswitched electrical out­let for proper operation of the SUB-TS14.
The cord should not be plugged into the
accessory outlets found on some audio
components.

6 SUB-TS14 SUBWOOFER AMPLIFIER PANEL CONTROLS AND CONNECTIONS

SUB-TS14

6

SPEAKER CONNECTIONS

harman/kardon

Dolby* Digital or DTS®(or Other
Digital Surround Mode) Connection

USE THIS INSTALLATION METHOD FOR
DOLBY DIGITAL,DTS OR OTHER DIGITAL
SURROUND PROCESSORS:

Use the line-level input jack marked SUB
∞ for the Low-Frequency Effects channel.
Connect this jack to the subwoofer output
or LFE output on your receiver or amplifier.
Connect each speaker to the corresponding
speaker terminals on your receiver or
amplifier.

Make sure you’ve configured your surround
sound processor for “Subwoofer On.” The
front left, front right, center and surround
speakers should all be set to “Small.”

When all connections have been made,plug
the AC power cord on the subwoofer into
an AC outlet.

Front

Left

– +

Surround

Left

– +

Front

Left

Surround

Left

Center

– +

SUB-TS14 Subwoofer

LINE LEVEL IN

SUB

SUB/LFE

Out

Center

Receiver

L

R

Surround

Front
Right

– +

Front
Right

Right

Surround

Right

– +

SUB-TS14

7

SPEAKER CONNECTIONS

harman/kardon

Dolby Pro Logic*
(Non-Digital) – Line Level

USE THIS INSTALLATION METHOD FOR
DOLBY PRO LOGIC APPLICATIONS (NOT
DOLBY DIGITAL,DTS OR OTHER DIGITAL
PROCESSING),WHERE THE RECEIVER/
PROCESSOR IS EQUIPPED WITH A
SUBWOOFER OUTPUT,OR A VOLUME­CONTROLLED PREAMP (LINE-) LEVEL
OUTPUT:

Use the supplied RCA-type interconnect
cable to connect the
output on your receiver
the left or right Line-Level Full-Range
Input § on the SUB-TS14 subwoofer.
Use both the left and right inputs on the
subwoofer if your receiver or processor has
both left and right line-level outputs.In that
case,you will need to supply a second
interconnect cable.

If your receiver is equipped with line-level out­puts but does not have a separate subwoofer
output, use a Y-adaptor (not supplied) to
bridge the receiver’s preamp output to the
main amp input for that channel, and connect
the long end of the adaptor to the corre­sponding line-level input on the SUB-TS14.

IMPORTANT:Do not use the SUB Input
∞ on the subwoofer with Dolby Pro Logic
processors.

If your receiver/processor has a built-in low­pass-crossover filter for the subwoofer out­put, you may use the SUB Input ∞ to
bypass the subwoofer’s internal crossover.

Connect each speaker to the corresponding
speaker terminals on your receiver or amplifier.

Make sure that you have configured your
surround sound processor for “Subwoofer
On.” The front left, front right, center and
surround speakers should all be set to
“Small.”

When all connections have been made,plug
the AC power cord on the subwoofer into
an AC outlet.

line-level subwoofer

or amplifier to either

Front

Left

– +

Surround

Left

– +

Front

Left

Surround

Left

Center

– +

SUB-TS14

Subwoofer
Line-Level

R

SUB/LFE

Out

Center

Receiver

Front
Right

– +

L

Front
Right

Surround

Right

Surround

Right

– +

SPEAKER CONNECTIONS 11

12 SPEAKER CONNECTIONS

SPEAKER CONNECTIONS

Front Left

Surround Left

Center

Front Right

Surround Right

Receiver

– + – +

– +

– + – +

SUB-TS14

Subwoofer

Surround

Right

Front
Right

Surround

Left

Front

Left

Center

L

R

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SUB-TS14

8

Dolby Pro Logic
(Non-Digital) – Speaker Level

USE THIS INSTALLATION METHOD FOR
DOLBY PRO LOGIC APPLICATIONS (NOT
DOLBY DIGITAL,DTS OR
PROCESSING),WHERE THE RECEIVER/
PROCESSOR DOES NOT HAVE A SUB­WOOFER OUTPUT,OR A VOLUME­CONTROLLED PREAMP (LINE-) LEVEL
OUTPUT:

Connect your receiver or amplifier’s front
left and right speaker terminals to the left
and right Speaker-Level Input • termi­nals on the SUB-TS14 subwoofer that are
marked “High Level In.” Connect the left and
right Speaker-Level Output ¶ terminals
on the SUB-TS14 subwoofer that are
marked “High Level Out”to the correspond­ing terminals on
and right speakers.

Connect your receiver or amplifier’s center,
and surround left and right speaker termi­nals to the corresponding terminals on the
back of your center, and surround left and
right speakers.

When all connections have been made,
plug the AC power cord on the subwoofer
into an AC outlet.

OTHER DIGITAL

the back of your front left

harman/kardon