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DIGITAl AUDIo CoNNECTIoNs

Gently push the cable plug through the built-in 
shutter that covers the optical digital audio output and 
connect the cable firmly so that the configurations of 
both the cable and the connector match.

DVD

Dolby Digital

Dolby Digital bitstream  

(2-5.1ch) or PCM 

(2ch, 48kHz, 16-bit)††

linear PCM  

(48/96kHz,  

16/20/24-bit)

linear PCM (2ch) 

(48/96kHz, 

16/20/24-bit)

DTs 

bitstream or no output*

MPEG (2.0)

MPEG bitstream (2ch) or 

linear PCM (2ch, 48kHz)

VCD

MPEG-1  

CD-DA

linear PCM*

CD

linear PCM

linear PCM (44.1kHz 

sampling)

MP3  

MPEG-1 

Audio layer 3)

linear PCM 

(44.1–48kHz, depending 

on source, if digital 

output format selected 

as “bitstream”). 

(48kHz if digital 

output format 

selected as “PCM”)

WMA  

(Windows Media Audio)

linear PCM 

(32–48kHz)

*  Digital format must be selected as “oRIGINAl“ 

or ”PCM” respectively in Menu

Dolby Digital (AC-3) is a digital sound compression 

 

■

technique developed by the Dolby laboratories 
licensing Corporation, supporting 5.1-channel 
surround sound, as well as stereo (2-channel) 
sound, this  technique enables a large quantity of 
sound data to be efficiently recorded on a disc.

linear PCM is a signal recording format used in 

 

■

CDs. While CDs are recorded in 44.1kHz/16 bit, 
DVDs are recorded in 48kHz/16 bit up to 96kHz/24 
bit.

If you have a Dolby Pro logic surround decoder 

 

■

connected to the DVD’s analog AUDIo oUT 
connectors, thanks to the ”Downmix” function 
of the DVD you will obtain the full benefit of Pro 
logic from the same DVD movies that provide full 
5.1-channel Dolby Digital soundtracks, as well as 
from titles encoded with Dolby surround.

The DVD is designed to digitally output 96kHz-

 

■

PCM audio with a 96kHz sampling rate. However, 
some 96kHz DVD's may include copy protection 
codes that do not permit digital output. for full 
96kHz fidelity from these discs, use the analog 
outputs of the DVD.

IMPORTANT: If your surround processor/D/A 
converter does not support 96kHz PCM audio, you 
must use the DVD analog outputs for full 96kHz 
fidelity with these discs.

When connecting an amplifier (with an  optical/

 

■

coaxial digital input ) which does not contain 
a Dolby Digital (AC-3) or DTs decoder, be sure 
to select ”PCM” as initial setting in the ”Digital 
output” menu. 
otherwise, any attempt to play a DVD may cause 
such a high level of noise that it may be harmful to 
your ears and damage your speakers.

CD’s can be played as they would normally be 

 

■

played.

some first generation DTs decoders which do not 

 

■

support DVD-DTs interface may not work properly 
with the DVD/CD player.

Dolby Digital, DTs and PCM signals are passed 

 

■

through the HDMI Output A but are not 
processed in the AVR Receiver in your system. 
Connect the Digital Audio separately besides 
HDMI to get sound from your system Receiver. 
DVD-Audio signals are not carried via the HDMI 
connection or the Coaxial or optical Digital Audio 
outputs. you must connect the 6-Channel Audio 
Outputs B to the corresponding input jacks on 
your receiver or processor in order to enjoy DVD-
Audio materials.

both Dolby Digital and DTs are audio formats used to 
record 5.1-channel audio signals onto the digital track 
of film. both of these formats provide six separate 
channels: left, right, center, left rear, right rear, and 
common subwoofer. The latest 6.1-formats, Dolby 
Digital EX and DTs Es, even one (or two) additional 
"surround back" channel for a center between the 
rears.

Remember, that Dolby Digital or DTs will only play 
5.1-channel sound if you’ve connected the optical 
or coaxial output of the DVD player to a DTs or Dolby 
Digital receiver or decoder and if the disc was recorded 
in the Dolby Digital or DTs format.

The high-resolution output of DVD-Audio discs is only 
available as an analog signal. for that  reason, it is 
necessary to make direct analog connections between 
the 6-Channel Audio Outputs B on the DVD and 
the matching 6-channel inputs on your receiver or 
surround processor.

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harman/kardon

DVD 26 and 28/230 Service Manual

Page 17 of 76

46 TRoUblEsHooTING GUIDE

Unit does not turn on

No AC Power

 

Check AC power plug and make certain any switched outlet is turned on.

 

Disc does not play

Disc loaded improperly

 

load disc label-side up; align the disc with the guides and place it in its 

 

proper position.

Incorrect disc type

 

Check to see that disc is CD, CD-R, CD-RW, DivX, VCD, MP3, WMA, JPEG, 

 

DVD-R, DVD-RW, DVD+R, DVD+RW (standard conforming), DVD-Audio 
or DVD-Video; other types will not play.

Invalid Region Code

 

Use Region 2 or open Region (0) disc only.

 

Rating is above parental preset

 

Enter password to override or change rating settings.

 

No picture

Intermittent connections

 

Check all video connections.

 

Wrong input

 

Check input selection of TV or receiver. 

 

Progressive scan output selected

 

Use Progressive scan mode only with compatible TV. If needed, press the 

 

Progressive Scan/Interlaced Button T to toggle to the correct 
mode.

Video off feature active

 

Press 

 

Video Off Button b to reactivate video circuitry (see page 43)

 

• HDMI Output A is connected to a video 

display that is not HDCP-compliant.

The 

 

HDMI Output A may not be used with video displays that are not 

HDCP-compliant. Unplug the cable and select another audio and video 
connection (see pages 31 through 32).

No sound

Intermittent connections

 

Check all audio connections.

 

Incorrect digital audio selection

 

Check digital audio settings.

 

DVD disc is in fast or slow mode

 

There is no audio playback on DVD discs during fast or slow modes.

 

surround receiver not compatible with 96kHz 

 

PCM audio

Use analog audio outputs.

 

DVD Audio disc is loaded without using 

 

analog audio connection

Use 

 

6-Channel Audio Outputs B or Analog Audio Outputs 9.

Picture is distorted or jumps during fast 
forward or reverse play

MPEG-2 decoding

 

It is a normal artifact of DVD playback for pictures to jump or show some 

 

distortion during rapid play.

some remote buttons do not operate 
during DVD play; prohibited symbol   
appears (see below)

function not permitted at this time

 

With most discs, some functions are not permitted at certain times (e.g., 

 

Track skip) or at all (e.g., direct audio track selection).

The osD menu is in a foreign language

Incorrect osD language

 

Change the display language selection.

 

The   symbol appears

Requested function not available at this time

 

Certain functions may be disabled by the DVD itself during passages of a 

 

disc.

Picture is displayed in the wrong aspect 
ratio

Incorrect match of aspect ratio settingsto disc

 

Change aspect ratio settings.

 

Remote control inoperative

Weak batteries

 

Change both batteries.

 

sensor is blocked

 

Clear path to sensor or use optional outboard remote sensor.

 

Disc will not copy to VCR

Copy protection

 

Many DVDs are encoded with copy protection to prevent copying to VCR.

 

Password not accepted.

Incorrect password being used or password 

 

has been forgotten.

stop play of disc. Press and hold the 

 

Clear Button D until the display 

blinks. This resets the password and all settings to their defaults.

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harman/kardon

DVD 26 and 28/230 Service Manual

Page 18 of 76

TECHNICAl sPECIfICATIoNs

Applicable Disc: 

Disc formats: 5 inch (12 cm) or 3 inch (8 cm) DVD Video, DVD-Audio, standard conforming DVD+RW, DVD+R, DVD-R,  

 

DVD-RW, DivX, VCD, CD, CD-R, MP3, WMA, JPEG or CD-RW discs, 

 

Regio code: DVD Movie disc with Code 2 or 0 only. 

 

DVD-layers: single side/single layer, single side/Dual layer, Dual side/single layer, Dual side/Dual layer 

 

Audio formats: DVD-Audio MlP lossless, linear PCM, MPEG, Windows Media® 9,  

 

Dolby Digital or DTs Audio discs 

 

still-image format: JPEG

Video Signal System: 

PAl/NTsC

HDMI™ Output: 

Video: 576p, 720p, 1080i 

 

HDMI Version 1.0-compliant 

 

HDCP Version 1.1-compliant

Composite Video Output: 

1 Vp-p/75 ohms, sync negative polarity

S Video Output: 

y/luminance: 1 Vp-p/75 ohms, sync negative polarity

 

C/Chrominance: 0.286 Vp-p

Component Video Output: 

y: 1 Vp-p/75 ohms, sync negative polarity

 

Cr: 0.7 Vp-p/75 ohms

 

Cb: 0.7 Vp-p/75 ohms

Analog Audio Output: 

2 Vrms max

Frequency Response: 

DVD (linear PCM): 

2Hz - 22kHz (48kHz sampling) 

 

 

2Hz - 44kHz (96kHz sampling)

 

CD: 

2Hz - 20kHz

Signal/Noise Ratio (SNR): 

105 db (A-weighted)

Dynamic Range: 

DVD: 

100db (18 bit) / 105db (20 bit) 

 

CD/DVD: 

96db (16 bit)

THD/1kHz: 

DVD/CD: 

0.0025 %

Wow & Flutter: 

below Measurable limits

AC Power: 

100 - 240 V/50 ~ 60 Hz

Power Consumption: 

1 Watt (standby)/13 Watts (Max)

Dimensions (WxHxD): 

440 x 50 x 285 mm

Weight: 

4.0 kg

Depth measurement includes knobs and connectors. 
Height measurement includes feet and chassis. 
All specifications subject to change without notice.
Harman Kardon is a registered trademark of Harman International Industries, Incorporated, registered in the United states and/or other countries.
Manufactured under license from Dolby laboratories. Dolby, Dolby Digital, Prologic, AC-3 and the double-D symbol are trademarks of  Dolby laboratories.
Manufactured under license under U.s. Patent #: 5,451,942 & other U.s. and worldwide patents issued & pending. DTs, DTs-Es and DTs Digital out are registered trademarks and the DTs logos 
and symbol are trademarks of DTs, Inc. © 1996-2007 DTs, Inc. All Rights Reserved.
Windows Media is a registered trademark of Microsoft Corporation in the United states and/or other countries.
Kodak is a registered trademark, and Photo CD is a trademark of Eastman Kodak Company.
blu-Ray Disc is a trademark of the blu-Ray Disc Association.
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI licensing llC.
DivX, DivX Certified, and associated logos are trademarks of DivX Networks, Inc and are used under license.
This product incorporates copyright protection technology that is protected by method claims of certain U.s. patents and other intellectual property rights owned by Macrovision Corporation and 
other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation and is intended for home and other limited viewing uses only unless otherwise 
authorized by Macrovision Corporation. Reverse engineering or diassembly is prohibited.

ClAss 1

lAsER PRoDUCT

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harman/kardon

DVD 26 and 28/230 Service Manual

Page 19 of 76

MODEL NAME  : DVD 37 & DVD 37/230

Description           :  Characteristics Specification of

Audio

Test Disc             :  YEDS7 (SONY),  TDV-540A (ABEX)
Test Conditions     :  10kΩ Load Terminated, AC100V 50/60Hz
Test Measuerment  :  VP-7722A (Audio Analyzer) ,CASCADE SYS-2522(AP)

1.ANALOG AUDIO OUTPUT

Limit

Result

TEST DISC

Output Level[Vrms]

L

R

Level difference　[Vrms]

       ＜ 0.2

F/ response [dB]

L

R

Ref.1kHz 0dB

L

R

L

R

L

R

L

R

Emphasis 

L

Characteristic[dB]

R

Ref.1kHz 0dB

L

R

S/N　[dB]

L

R

Channel Separation　[dB]

Ｌ→Ｒ
Ｒ→Ｌ

Linearity　[dB]

L

-90dB playback

R

T.H.D　[%]

L

R

Dynamic Range　[dB]

L

-60dB playback

R

全高調波歪率　[%]

L

ＤＶＤ　９６ｋ

R

Dynamic Range　[dB]

L

ＤＶＤ　９６ｋ

R

全高調波歪率　[%]

L

ＤＶＤ　48ｋ

R

Dynamic Range　[dB]

L

ＤＶＤ　48ｋ

R

2. DIGITAL OUTPUT

   1) OPTICAL OUT
  JITTER      44.1kHz

Normal  44.1kHz

(mUI)

CD Playback

  JITTER       96kHz

Normal  96kHz

(mUI)

DVD Playback

   2) COAXIAL OUT
  OUTPUT Level     [mV]

Normal CD or DVD 

  Peak to Peak Level at 75ohm Lo

Playback

Measurement Item

＞９5

-9.04 ± 1.0

４4　KHz

５　KHz

１６　KHz

2 0 H

z

100　Hz

10　KHz

２０　KHz

＜ 0.01

＞９5

＜ 0.01

＞９3

＜ 0.01

89.5±3

2.0 ± 0.2

０± 1.0

０± 1.0

＞105

> 95

０± 1.0

０± 1.5

０± 1.5

-4.53±1.0

YEDS7 (SONY)

TRACK 1

YEDS7 (SONY)

TRACK 2

YEDS7 (SONY)

TRACK 4

TDV-540A (ABEX)

TITLE 2, CHAPTER 1

AUDIO STREAM 2

YEDS7 (SONY)

TRACK 10

YEDS7 (SONY)

TRACK 13

TDV-540A (ABEX)

TITLE 4,CHAPTER

16

AUDIO STREAM 3

YEDS7 (SONY)

TRACK 40

YEDS7 (SONY)

TRACK 41

YEDS7 (SONY)

TRACK 23

YEDS7 (SONY)

TRACK 30,34

YEDS7 (SONY)

TRACK 22

TDV-540A (ABEX)

TITLE 2, CHAPTER 2

AUDIO STREAM 2

YEDS7 (SONY)

TRACK 1

YEDS7 (SONY)

TRACK 20

TDV-540A (ABEX)

TITLE 3, CHAPTER 1

TDV-540A (ABEX)

TITLE 3, CHAPTER 2

500±50 (mV)

< 50mUI

< 50mUI

harman/kardon

DVD 26 and 28/230 Service Manual

Page 20 of 76