Harman Kardon HKTS-1 Service Manual

SUB-TS1

Amplifier/Subwoofer

TECHNICAL MANUAL

Harman Consumer Group
250 Crossways Park Drive
Woodbury, N.Y. 11797
1-800 422-8026 in the USA

A Harman International Company

Rev A 11/99

Amplifier/Subwoofer Harman Kardon

The SUB-TS1 is part of the HKTS1 system

TABLE OF CONTENTS

SUB-TS1

COVER...........................................................................1

GENERAL SPECIFICATIONS .......................................2

TABLE OF CONTENTS .................................................2

HKTS1 SPECIFICATIONS.............................................3

CONTROLS AND THEIR FUNCTION...........................5

HKTS1 SPEAKER LEVEL CONNECTIONS .................6

HKTS1 LINE LEVEL CONNECTIONS ..........................7

SUB-TS1 TEST SET UP AND PROCEDURE..............8

SIMPLE TROUBLESHOOTING .....................................9

GENERAL SPECIFICATIONS

HKTS1 PACKING.........................................................10

SUB-TS1 EXPLODED VIEW .......................................11

SUB-TS1 PCB COMPONENT SIDE ...........................12

SUB-TS1 PCB SOLDER SIDE ....................................13

SUB-TS1 ELECTRICAL PARTS LIST.........................14

SUB-TS1 INTEGRATED CIRCUIT DIAGRAMS .........16

SUB-TS1 POWER AMP SCHEMATIC DIAGRAM......17

SUB-TS1 PRE-AMP SCHEMATIC DIAGRAM ............18

HKTS-1 System

Frequency Response
35Hz – 20kHz (–6dB)

SUB-TS1

Amplifier . . 75 watts RMS

Bass .....8"woofer, bass-reflex enclosure

Dimensions (HxWxD)

10! x18! x10! inches
267 x 470 x 267mm

Weight . . . 29.9 lbs/13.6 kg

Refinements may be made on occasion to existing products without notice,
but will always meet or exceed original specifications unless otherwise stated.

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Amplifier/Subwoofer Harman Kardon

HKTS1 SPECIFICATIONS

SUB-TS1

LINE VOLTAGE Yes/No

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

EU 230vac/50-60Hz Yes 207-264 Vrms Normal operation, MOMS

Asia 100vac/50Hz Yes 90-110 Vrms Normal Operation

Spec. Unit Limits Conditions Notes

Amp Section

Type (Class AB, D, other) AB AB n/a Sink required for Class AB

Load Impedance (speaker) 4 Ohms n/a Nominal Z-curve required

Rated Output Power 80 Watts 80 1 input driven

THD@ Rated Power 0.08 % 0.3 22k filter

THD @ 1 Watt 0.1 % 0.5 22k filter

DC Offset 10 mV-DC 20 @ Speaker Outputs

Damping factor <200 DF n/a

Input Sensitivity

Input Frequency 50 Hz 50 Nominal Freq. 1 input driven

Line Input 220 mVrms ±2dB To Rated Power 1 input driven

Speaker/Hi Level Input 4.26 Vrms ±2dB To Rated Power (-26dB below Line In)...1

Hi/Lo Line Unit Notes

required

input driven

Signal to Noise

SNR-A-Weighted 100 dBA 90 rel. to rated power A-Weighting filter

SNR-unweighted 80 dBr 60 rel. to rated power 22k filter

SNR @ 1W-unweighted 60 dBr 55 rel. to 1W Output 22k filter

Residual Noise Floor 1.5 mVrms 2.5 Volume @max, using RMS reading DMM/VOM (or A/P)

Residual Noise Floor 1 mVrms(max) 2 Volume @max, w/ A/P Swept Bandpass Measurement

Input Impedance

Line Input 15K ohms n/a Nominal

Speaker/Hi Level Input 4.7K ohms n/a Nominal

Filters

Low Pass (fixed or
variable)

Low Pass filter (point or
range)

Slope 24 dB/Octave n/a

Q 1.8 Damping n/a 2 cascaded 2nd order

Subsonic filter (HPF) 31 Hz ±2dB -3dB Point

Slope 12 dB/Octave n/a

Q 1.4 Damping n/a

fixed — —

135 Hz ±2dB -3dB Point

(Line freq.+ harmonics)

filters of 1.8 &0.7 Q

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Amplifier/Subwoofer Harman Kardon

Signal Sensing (ATO)

Auto-Turn-On (yes/no) yes — functional

ATO Input Frequency 50 Hz functional

ATO Level 2 mV functional 2mV@50Hz into Line Input

ATO Bandwidth 5k Hz functional ATO-LPF for noise

ATO Turn-on time 5 ms functional Amp connected and AC on, then input signal applied

Auto Mute/ Turn-OFF Time 20 minutes functional T before muting, after

w/ 1 ch. driven

immunity

signal is removed

DV1 measured 7mV @
5kHz…. 2mV @ 1kHz

SUB-TS1

Power on Delay time

Transients/Pops

ATO Transient 5 mV-peak 10 @ Speaker Outputs

Turn-on Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from OFF to

Turn-off Transient 50 mV-peak 100 @ Speaker Outputs AC Line cycled from ON to

Efficiency

Stand-by Input Power 10 Watts n/a @ nom. line voltage

Power Cons.@rated power 160 Watts n/a @ nom. line voltage

Protection

Short Circuit Protection Yes — functional Direct short at output

Thermal Protection 65 deg.C— functional @1/8 max unclipped

DC Offset Protection yes — functional DC present at Speaker

Line Fuse Rating 2 Amps 2 Type-T or Slo Blo External fuse with UL/SEMKO

3 sec. functional AC Power Applied

Power

Out leads

ON

OFF

DV1:Plate=50deg.C
max.Tab=90deg.C max.T-on
=65deg.C

Relay or crowbar (for
driver/fire protection)

rated holder

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Amplifier/Subwoofer Harman Kardon

CONTROLS AND THEIR FUNCTION

SUB-TS1

SUB-TS1

L

SPEAKER

C

R

L

C

R

LEVEL

OUTPUT

SPEAKER

LEVEL
INPUT

1

2

FUSE

2A/250V

TYPE T

7

STAND BY

ON

6

FUSE

AC 120V ,60Hz

~

160W

9

POWER

8

1. Speaker Level Outputs - Connect the Left, Center
and Right speakers to these connectors.

2. Speaker Level Inputs - These High Level Inputs are
for receivers that do not have line-level “pre-amp out”
or “subwoofer out” jacks. When a pair of main or
satellite speakers are attached to the OUTPUT
terminals, they are driven the full range of frequencies
as generated by the music source (receiver, amplifier,
etc.)

3. Line Level Input - These left and right Line Level
Inputs are normally used when the receiver/ processor
has line-level “pre-amp out ” or “subwoofer out” jacks.

LINE LEVEL

INPUT

R

SUBWOOFER

LEVEL

MIN

L

ON
AUTO

MAX

3

4

5

5. Subwoofer Level - This knob controls the volume
level of the SUB125.

6. LED - Red & Green. The LEDs indicate the Mode
status that the subwoofer is in. When the SUB125 is
turned OFF neither LED will be lit. The Green LED
will light when the SUB125 is ON and receiving a
signal. The Red LED will light when the amplifier has
not received a signal for twenty minutes. The
subwoofer will turn on when your receiver/amplifier
begins playing again.

7. Power Switch - This the master power switch. Use it
(in Off mode) to disconnect power to the amplifier.

4. Auto/On Switch - This switch allows you to set the
Mode of the Amplifier. Turn the switch to Auto to
cause it to Auto-matically turn on when it receives a
signal and Auto-matically turn off after twenty minutes
without a signal. If this switch is left “On”, the
subwoofer will always be ON when the power switch
is turned On, regardless of input signal.

8. Fuse - Use only same type of fuses. For the U.S.
120V version use only a 2A 250V fuse. For the
European 230V version use only a 1A fuse.

9. AC Cord

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Amplifier/Subwoofer Harman Kardon

HKTS1 SPEAKER LEVEL CONNECTIONS

SUB-TS1

Left Front

LL

Right Front

Center

SUB-TS1

SPEAKER LEVEL OUTPUTSPEAKER LEVEL INPUT

CC

RR

Receiver

Left Front

Left Surround

Center

Right Front

Right Surround

Left Surround Right Surround

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