Harman Kardon HKTS 10, Service Manual

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RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
harman/kardon
SUB-TS10 For use with
HKTS 10 System
OFF
NORMAL REVERSE
OOFER LEVEL
ON AUTO
IMPORTANT: CONNECT STRIPED WIRE TO RED ( ) SPEAKER TERMINAL.
AC 120V~60Hz
POWER
Made in China
L
R
SUB
PHASE
FILTER
CONTROL
SUBW
GREEN: ON
RED: STAND-BY
FILTER
REMOTE
LINE
LEVEL
IN
ON
L R
{
AC VOLT
METER (10V)
SIGNAL
GENERATOR
AMPLIFIER
Equipment needed:
• Function/signal generator/sweep generator
• Integrated Amplifier
• Multimeter
• Speaker cables
General Unit Function (UUT = Unit Under Test)
1) From the signal generator, connect one line level (RCA) cable to the single Sub input on the UUT.
2) On the front of the unit, turn the LEVEL control full counterclockwise. FILTER control should be OFF.
3) Turn on generator, adjust to
75mV, 50 Hz .
4) Plug in UUT; turn the power switch ON. LED should be Red. Turn LEVEL control full clockwise (MAX)
5) LED should now be Green; immediate bass response should be heard and felt from port tube opening.
6) Turn off generator, turn VOLUME control fully counterclockwise, disconnect RCA cable.
7) Connect one pair of speaker cables to Speaker Level input terminal (IN) on Right channel only. Cables
should be connected to an integrated amplifier fed by the signal generator.
8) Turn on generator and adjust so that speaker level input at the amplifier is 1.6V, 50 Hz . Turn LEVEL control
full clockwise.
9) Green LED should light, immediate bass response should be heard and felt from the port tube opening.
Sweep Function
1) Follow steps 7-9 above, using a sweep generator as a signal source.
2) Sweep generator from 20Hz to 300Hz. Listen to the cabinet and drivers for any rattles, clicks, buzzes or any
other noises. If any unusual noises are heard, remove woofers and test.
Driver Function
1) Remove woofer from cabinet; and - wire clips.
2) Check DC resistance of woofer; it should be
3.5 ohms ±10%
3) Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifier fed
by a signal generator. Turn on generator and adjust so that speaker level output is 5.0V .
4) Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises.
Test Set Up and Procedure
HKTS 10
HKTS10
UNDER TEST