Harman Kardon SUBTS-14 Service manual

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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.

)

SUB-TS14

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

n/a

154 - 308

87 - 175

2.4 - 4.8

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

" " "

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

Tape

SUB-TS14

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

250

functional

functional functiona

n/a

AC Power Applied

@ Speaker Outputs @ Speaker Outputs @ Speaker Outputs

@ 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

harman/kardon

SUBWOOFER

™

LEVEL

FILTER

OFF

MAX

MIN

SUB-TS14

For use with HKTS 14 System

¢ ∞

• ª

‚

AUTO

REVERSE

NORMAL

SUB

LINE

LEVEL

I G H

L E V E L

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

PHASE

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

RISK OF ELECTRIC SH O CK

RISK OF ELECTRIC SH O CK 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

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

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

Surround

Front Right

– +

Front Right

Right

Surround

Right

– +

SUB-TS14

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

SUB/LFE

Out

Center

Receiver

Front Right

– +

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

I G H

L E V E L

SUB-TS14

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.

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the back of your front left

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