AVR 500 (serv.man14) — Harman Kardon Audio Technical Bulletin (repair manual)

Model
AVR 500 (serv.man14)
Pages
2 Few pages! See other manuals at the bottom of the first or last page.
Size
770.31 KB
Type
PDF
Document
Technical Bulletin
Brand
Device
Audio
File
avr-500-sm14.pdf
Date

View Harman Kardon AVR 500 (serv.man14) Technical Bulletin online

 
harman/kardon Incorporated  250 Crossways Park Drive, Woodbury  New York 11797  (516) 496-3400 
 
 
harman/kardon          
 
Service Bulletin
 
 
Service bulletin # H/K2000-04  November 2000 
 
 
Warranty labor rate:  
         AVR500 
MAJOR 
repair 
To: 
  All harman/kardon Service Centers  
 
 
AVR7000 
MINOR repair 
 
Models: AVR500/AVR7000 
 
Subject: Noise in Logic 7 Mode 
 
In the event you receive an AVR500 or AVR7000 receiver with the complaint “There is crackling, noise, 
or distortion coming from my loudspeakers when my receiver is in the Logic 7 mode with certain 
program material playing”, perform the following procedure: 
 
AVR500 ONLY: REMOVAL AND MODIFICATION OF THE DSP BOARD (replace IC709 TRAD ROM-0001) 
 
WARNING: FOLLOW PROPER STATIC CONTROL PROCEDURES and use caution during the removal of the 
DSP board, and during installation of new IC709 to prevent damage. 
 
1)  Remove the top cover, (14) Black Phillips screws at the sides and rear of the unit. 
2)  Locate the DSP PC Board; Figure 1.  Remove the two metal braces at the top of the unit.  If necessary, cut 
the cable ties attached to the braces to move any wires away from the area. 
3)  Pull the white 22 conductor ribbon cable at the rear of the DSP PC Board straight out of its receptacle. 
4)  Unplug the white 5 conductor molex cable at the top of the DSP PC Board. 
5)  Remove the (33) plated Phillips screws on the left side of the rear backplate; see Figure 2.  Do not remove 
any additional screws on the right side. If using a power tool, use care and minimum effort to avoid 
damaging the various plastic receptacles. 
6)  Remove all three black plastic plugs that cover the optical inputs at the rear of the DSP PC Board. 
7)  Pull on the left side of the rear backplate, away from the receiver chassis; you should be able to pull it away  
enough to allow the DSP PC Board to be pulled straight up and out of the receiver. 
8)  Unsolder IC709 TRAD ROM-0001 and replace with hk part# J21310030011. See illustration on following 
page for location on PCB. 
 
 
Model Serial 
Number 
120V 
Serial Number 
230V RDS 
 
STATUS 
 
ACTION 
 
AVR500 
 
TH0002-01000 
To 
TH0002-14977 
TH0006-01000 
To 
TH0006-05105 
 
Noise in Logic 7 Mode 
 
Replace IC709 
 TRAD ROM-0001 
 
AVR500 
TH0002-14978 or 
higher 
TH0006-05106 or 
higher 
 
Modified by factory 
 
NONE REQUIRED 
 
harman/kardon Incorporated  250 Crossways Park Drive, Woodbury  New York 11797  (516) 496-3400 
 
Location of IC upgrade for the AVR500/AVR7000: 
 
 
 
9)  Replace DSP PC Board back into its (3) receptacle plugs atop the MAIN PCB. 
10) Replace all screws, braces, and any cable ties that were cut during disassembly. Before tightening the 
screws, make sure all PCB’s and their RCA jacks are firmly seated in their respective holes in the rear 
backplate. If using a power tool, use care and minimum effort to avoid damaging the various plastic 
receptacles. 
11) Plug both the 22 conductor ribbon cable and the 5 conductor molex cable back into their receptacles. 
12) Replace the top cover and optical plugs. 
13) Test unit by powering up the receiver and playing a music source in the Logic 7 mode. 
 
AVR7000 ONLY: MODIFICATION OF THE DSP BOARD (replace IC101 AT27LV020A) 
 
WARNING: FOLLOW PROPER STATIC CONTROL PROCEDURES and use caution during the installation of 
new IC101 to prevent damage. 
 
1)  Remove the top cover, (16) Black Phillips screws at the sides and rear of the unit. 
2)  Locate the DSP PC Board and IC101 with the illustrations above. 
3)  Unsolder IC101 AT27LV020A and replace with hk part# J2131328001X. See illustration above for location 
on PCB. 
4)  Replace top cover and all Phillips screws. 
5)  Test unit by powering up the receiver and playing a music source in the Logic 7 mode. 
 
Model Serial 
Number 
120V 
Serial Number 
230V RDS 
 
STATUS 
 
ACTION 
 
AVR7000 
 
 
TH0003-01000 
To 
TH0003-05222 
 
Modified by factory 
 
Noise in Logic 7 Mode 
 
Replace IC101  
AT27LV020A 
 
AVR7000 
 
TH0003-05223 
Or higher 
 
Modified by factory 
 
Modified by factory 
 
NONE REQUIRED 
 
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Download Harman Kardon AVR 500 (serv.man14) Technical Bulletin

Here you can view online or download Harman Kardon AVR 500 (serv.man14) Technical Bulletin in pdf. This Technical Bulletin can help you recover, restore, fix, disassemble and repair Harman Kardon AVR 500 (serv.man14) Audio. Information contained in Harman Kardon AVR 500 (serv.man14) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).