DIGITAL LOUNGE (serv.man15) - Harman Kardon Audio Service Manual (repair manual). Page 37

 

Design Requirements

 

CONRAC Number 

Rev. 1.12 

Status: 04.05.2006 

Page 32/39

 

Copyright © CONRAC GmbH. All rights reserved. For internal use only 

Nur für internen Gebrauch. Alle Rechte vorbehalten

 

Pflichtenheft AV5, REV 1.12 

4042-6350-9601

 

4.3.4  Digital Control Operation 
 

Signals used for mode 
detection: 
 

•  Nominal horizontal frequency 
•  Nominal vertical frequency 
•  Horizontal Sync. Pulse Polarity 
•  Vertical Sync. Pulse Polarity 
•  Amount of total lines 

 
The tolerance for detecting the horizontal frequency is between 

±  2% from the horizontal center  

frequency. 
The tolerance for detecting the vertical frequency is between 

±  2% from the vertical center frequency. 

 
PICTURE STABILITY: Picture position, size and image lock has to be stable even during warm up, 
this means phase shift ≤ 2ns 
 
PROTECTION CIRCUIT: Missing or improper sync pulses will not damage the monitor. Additionally, 
under these conditions, the monitor shall not cause damage to the driving source. 
 

LOUDSPEAKER 
 

Rated input 

7W (2 speakers in parallel) 

Max. input 

10W (2 speakers in parallel) 

Impedance 

8 Ohm 

± 15% (PDP), 2 Ohm ± 15% (TFT) 

Resonant frequency 

100 Hz 

± 20% 

Frequency range 

150 Hz – 20 kHz  +/- 3 dB 

 
AMPLIFIER 
 

Max. Output 

7W (PDP), 5W (TFT) per channel 

Frequency range 

100 Hz – 15 kHz 

 
SUB WOOFER : 
 
The sub woofer output is a "line" output and volume control works together with the built in speaker. 
 
 

DL HT32 - HT40 - HT46

Harman Consumer Group International