DOWNLOAD JBL HT 4H (serv.man4) Service Manual ↓ Size: 117.07 KB | Pages: 4 in PDF or view online for FREE

Model
HT 4H (serv.man4)
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
117.07 KB
Type
PDF
Document
User Manual / Operation Manual
Brand
Device
Audio
File
ht-4h-sm4.pdf
Date

JBL HT 4H (serv.man4) User Manual / Operation Manual ▷ View online

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D E S I G N   G O A L : Bring the thrill of live performance and movie sound to
the home environment by calling on JBL’s professional engineering leadership.
C R O S S O V E R   N E T W O R K : Straight-Line Signal Path
(SSP)
P O R T   D E S I G N : FreeFlow
flared
P R O F E S S I O N A L   R E F E R E N C E : Cinema Loudspeaker Series
W O O F E R   T Y P E : Cast-aluminum basket with HeatScape
motor structure
P R O D U C T L I N E :  
H T S E R I E S
M O D E L  
HT
4
V, HT
4
H
N U M B E R :
T H A N K   Y O U   F O R   C H O O S I N G   J B L
For more than 50 years, JBL has
been involved in every aspect of
music and film recording and
reproduction, from live perfor-
mances to the recordings you play
in your home, car or office.
We’re confident that the JBL
loudspeakers you have chosen will
provide every note of enjoyment
that you expected – and that when
you think about purchasing addi-
tional audio equipment for your
home, car or office, you will once
again choose JBL.
Please take a moment to complete
the enclosed profile card. It
enables us to keep you posted on
our latest advancements, and
helps us to better understand our
customers and build products that
meet their needs and expectations.
JBL Consumer Products
T W E E T E R   T Y P E : Pure-titanium dome with Bi-Radial
®
Constant Directivity Horn
O W N E R ’ S   G U I D E
Only model HT4V is
THX
®
Ultra certified.
S P E A K E R   P L A C E M E N T
Proper placement of the speakers
is an important step in obtaining
the most realistic soundstage
possible. These recommendations
are for the optimum placement of
the loudspeakers. Use these
placement recommendations 
as a guide. Slight variations 
will not diminish your listening
pleasure.
I N T R O D U C T I O N
JBL’s HT Series takes advantage
of our latest technology to deliver
incredibly clean, detailed sound.
Incorporating JBL’s symmetrical
array design and exclusive Bi-
Radial
®
horn, these loudspeakers
deliver sound that is distributed
over a wide soundstage with
pinpoint imaging, and the HT4V is
THX
®
Ultra certified. The horn
should be directed at ear level in
order to maximize the imaging
characteristics. The Bi-Radial
horn design – which greatly
reduces room reverberation –
along with video-shielding, allows
greater placement flexibility within
the room. Ultrawide frequency
response and high power handling
combine to give you clear,
powerful sound that you get only
from genuine JBL. The HT
loudspeakers are perfect for
today’s Dolby* Digital and DTS
®
recordings.
The HT4H center-channel
loudspeaker is designed to
complement any of the HT Series
loudspeakers. It is the perfect
addition for re-creating the
cinematic experience in your home.
1'
1'
40–60
o
o
As Front Speakers
5–6 ft.
HT4V
For optimum performance, use the
HT4H with the grille attached.
The front speakers should be
placed the same distance from
each other as they are from the
listening position. They should be
placed at about the same height
from the floor as the listeners’ ears
will be, or they may be angled
toward the listeners.
The HT4H center-channel speaker
should be placed slightly behind
the front left and right speakers,
and no more than two feet above
or below the tweeters of the left
and right speakers. It is often
convenient to set the center
speaker on top of the television
set, as shown in the drawing. 
The two surround speakers should
be placed slightly behind the
listening position and, ideally,
should face each other and be at 
a level higher than the listeners’
ears. If that is not possible, they
may be placed in the corners of
the room behind the listening
position, angled in toward the
center of the listening area. The
customer is responsible for proper
selection and use of mounting
hardware, available through
hardware stores, to properly and
safely wall-mount the speakers.
The surround speakers should not
call attention to themselves.
Experiment with their placement
until you hear a diffuse, ambient
sound accompanying the main-
program material heard in the
front speakers.
HT4H Center-Channel Speaker
0–2 ft.
As Surround Speakers
Alternative Surround-Speaker Placement
+        –       +        –
Right            Left
Right 
Speaker
Left 
Speaker
Receiver/
Amplifier
–             +
–             +
S P E A K E R   F E E T
HT4H 
The HT4H terminal cup has an adjustable foot to angle the speaker toward the listening position.
Loosen thumbscrew.
Slide rod down the desired
amount.
Tighten thumbscrew.
Separate and strip the ends of the
speaker wire as shown. Speakers
and electronics terminals have
corresponding (+) and (–)
terminals. Most manufacturers 
of speakers and electronics,
including JBL, use red to denote
the (+) terminal and black for the
(–) terminal. The (+) lead of the
speaker wire is noted with a
stripe. It is important to connect
both speakers identically: (+) on
the speaker to (+) on the amplifier
and (–) on the speaker to (–) on
the amplifier. Wiring “out of
phase” results in thin sound, weak
bass and a poor stereo image.
With the advent of multichannel
surround-sound systems,
connecting all of the speakers in
your system with the correct
polarity remains equally important
in order to preserve the proper
ambience and directionality of the
program material.
Connection Tips
Center Speaker
–         +
Receiver/Amplifier
+         –
If there is no sound from 
any of the speakers:
• Check that receiver/ amplifier is
on and that a source is playing.
• Review proper operation of your
receiver/amplifier.
• Make sure all wires are
connected. Make sure none of the
speaker wires are frayed, cut or
punctured.
If the system plays at low volumes
but shuts off as volume is
increased:
• Check all wires and connections
between receiver/amplifier and
speakers.
• If more than one pair of main
speakers is being used, check the
minimum impedance requirements
of your receiver/amplifier.
• Make sure all wires are
connected. Make sure none of the
speaker wires are frayed, cut or
punctured.
If there is no sound coming from
one speaker:
• Check the “Balance” control on
your receiver/ amplifier.
• Check all wires and connections
T R O U B L E S H O O T I N G
HT4V
Both the HT4V and HT4H come
with rubber, self-adhesive
footpads, which should be
attached to the bottom corners of
each speaker to protect both your
furniture and the speakers.
S P E A K E R   C O N N E C T I O N S
HT4H
JBL Consumer Products
250 Crossways Park Drive, Woodbury, NY 11797
800-336-4JBL (4525) (USA only)
www.jbl.com 
©2000 JBL, Incorporated. 
JBL is a registered trademark of JBL, Incorporated.
Part No. 336346-001
T W E E T E R   T Y P E : Pure-titanium dome with Bi-Radial
®
Constant Directivity Horn
D E S I G N   G O A L : Bring the thrill of live performance and movie sound to the home
environment by calling on JBL’s professional engineering leadership.
C R O S S O V E R   N E T W O R K : Straight-Line Signal Path
(SSP)
W O O F E R   T Y P E : Cast-aluminum basket with HeatScape
motor structure
P O R T   D E S I G N : FreeFlow
flared
P R O F E S S I O N A L   R E F E R E N C E : Cinema Loudspeaker Series
O W N E R ’ S   G U I D E
P R O   S O U N D  
C O M E S   H O M E
P R O D U C T L I N E :  
H T   S E R I E S
M O D E L  
HT
4
V, HT
4
H
N U M B E R :
between receiver/amplifier and
speakers.
• Make sure all wires are
connected. Make sure none of the
speaker wires are frayed, cut or
punctured.
• In Dolby Digital or DTS modes,
make sure that the receiver/
processor is configured so that the
speaker in question is enabled.
If there is no sound from the
center speaker:
• Check all wires and connections
between receiver/amplifier and
speaker. Make sure all wires are
connected. Make sure none of the
speaker wires are frayed, cut or
punctured.
• If your receiver/processor is set
in Dolby Pro Logic mode, make
sure the center speaker is not in
phantom mode.
• If your receiver/processor 
is set in Dolby Digital or DTS
mode, make sure the receiver/
processor is configured so that the
center speaker is enabled.
If there is no (or low) bass output:
• Make sure the polarities (+ and –)
of the left and right “Speaker
Inputs” are connected properly. 
• If a powered subwoofer is being
used, check the manufacturer’s
instructions for proper use.
• If a subwoofer is being used in
Dolby Digital or DTS modes, make
sure your receiver/processor is
configured so that the subwoofer
and LFE output are enabled.
If there is no sound from the
surround speakers:
• Check all wires and connections
between receiver/ amplifier and
speakers. Make sure all wires are
connected. Make sure none of the 
speaker wires are frayed, cut or
punctured.
• Review proper operation of your
receiver/amplifier and its
surround-sound features.
• Make sure the movie or TV show
you are watching is recorded in a
surround-sound mode. If it is not,
check to see if your receiver/
amplifier has other surround
modes you may use.
• In Dolby Digital or DTS modes,
make sure your receiver/
processor is configured so that the
surround speakers are enabled.
• Review the operation of your
DVD player and the jacket of your
DVD to make sure that the DVD
features the desired Dolby Digital
or DTS mode, and that you have
properly selected that mode using
both the DVD player’s menu and
the DVD disc’s menu.
T R O U B L E S H O O T I N G   ( c o n t . )
S P E C I F I C A T I O N S
HT4V
HT4H
Frequency 
Response: 80Hz – 18kHz (±2dB)
100Hz – 18kHz (±2dB)
50Hz – 20kHz (–6dB)
55Hz – 20kHz (–6dB)
Sensitivity
(2.83V/1m): 88dB
90dB
Maximum
Recommended
Amplifier Power**: 150W
150W
Nominal
Impedance: 8 Ohms
8 Ohms
Crossover 
Frequency: 2500Hz
2500Hz
Low-Frequency
Transducer: Dual 5-1/4"
Dual 5-1/4"
High-Frequency
Transducer: 1" Pure-titanium dome
1" Pure-titanium dome
with Bi-Radial
®
horn
with Bi-Radial
®
horn
Dimensions 
(H x W x D): 20" x 6-13/16" x 11-7/8"
6-13/16" x 20" x 11-7/8"
508mm x 173mm x 302mm 173mm x 508mm x 302mm
Weight: 25 lb/11.4kg
25 lb/11.4kg
Occasional refinements may be made to existing products without notice but will always meet or exceed 
original specifications unless otherwise stated. 
THX is a registered trademark of Lucasfilm, Ltd.
* Dolby is a trademark of Dolby Laboratories. DTS is a registered trademark of Digital Theater Systems, Inc.
** The maximum recommended amplifier power rating will ensure proper system headroom to allow for 
occasional peaks. We do not recommend sustained operation at these maximum power levels.
Only model HT4V is
THX
®
Ultra certified.
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JBL HT 4H (serv.man4) User Manual / Operation Manual ▷ Download

  • DOWNLOAD JBL HT 4H (serv.man4) Service Manual ↓ Size: 117.07 KB | Pages: 4 in PDF or view online for FREE
  • Here you can View online or download the User Manual / Operation Manual for the JBL HT 4H (serv.man4) in PDF for free, which will help you to disassemble, recover, fix and repair JBL HT 4H (serv.man4) Audio. Information contained in JBL HT 4H (serv.man4) User Manual / Operation Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.