AVR 139 (serv.man4) — Harman Kardon Audio Service Manual (repair manual)

Model
AVR 139 (serv.man4)
Pages
83
Size
5.44 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
avr-139-sm4.pdf
Date

View Harman Kardon AVR 139 (serv.man4) Service Manual online

 
 
harman/kardon
    
            Service Manual
 
 
 
                               
                                                
 
 
AVR 139/230 
AVR 141/230 
AVR 142/230 
5 x 40W  5.1 CHANNEL A/V RECEIVER 
 
 
 
 
 
 
 
 
 
 
 
 
 
CONTENTS
 
 
 
 
 
 
 
 
 
 
ESD 
WARNING    2 
BASIC 
SPECIFICATIONS 
  3 
TROUBLESHOOTING GUIDE 
 
PROCESSOR 
RESET   4 
PACKAGE LISTS AND PARTS                    5
DISASSEMBLY    8 
EXPLODED VIEW AND PARTS 
 
 
ELECTRICAL 
PARTS 
LIST 
  10 
IC 
LIST     30 
SEMICONDUCTOR PINOUTS 
 
31 
PCB 
DRAWINGS 
   69 
BLOCK 
DIAGRAM 
   74 
WIRING 
DIAGRAM 
   75 
AMP 
BIAS 
ADJUSTMENT 
  76 
SCHEMATIC DIAGRAMS   
       77-83 
 
 
 
Released EU2009 
 
 
Harman Consumer Group, Inc.   
Rev 0, 11/2009 
 
 
 
 
 
       8500 Balboa Boulevard 
      
 
 
Northridge, 
California 
91329 
 
Each precaution in this manual should be followed during servicing.
Components identified with the IEC symbol
in the parts list are special significance to safety. When replacing a component identified with
, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in the
parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably
insulated from the supply circuit before retuming the product to the customer.
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and
semiconductor "chip" components.
The following techniques should be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on
your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to
prevent electrostatic charge build-up or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges
sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement
ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the
chassis or circuit assembly into which the device will be installed.
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together
or your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.
CAUTION :
harman/kardon
AVR 139-141-142/230 Service Manual
Page 2 of 83
2
23
ENGLISH
Technical Specifications for AVR Surround Receiver
TECHNICAl sPECIfICATIoNs foR AVR
Audio Section
stereo Mode 
Continuous Average Power (fTC) 
 
40 Watts per channel, 20Hz–20kHz, 
 
@ < 0.07% THD, both channels driven into 8 ohms
five-Channel surround Modes  
Power Per Individual Channel, all channels driven simultaneously 
 
front l&R channels:  
 
 
35 Watts per channel, 
 
 
@ < 0.07% THD, 20Hz–20kHz into 8 ohms 
 
Center channel:  
 
 
35 Watts,  
 
 
@ < 0.07% THD, 20Hz–20kHz into 8 ohms 
 
surround channels:  
 
 
35 Watts per channel, 
  
 
@ < 0.07% THD, 20Hz–20kHz into 8 ohms
five-Channel surround Modes 
(one channel driven into 6 ohms, 1kHz, @ <0.07% THD) 
 
front l&R channels: 
 
 
70 Watts per channel 
 
Center channel: 
 
 
70 Watts 
 
surround (l & R) channels: 
 
 
70 Watts per channel
Input sensitivity/Impedance 
 
linear (High level) 
200mV/47kohms
signal-to-Noise Ratio (IHf-A) 
95db
surround system Adjacent Channel separation 
 
Analog Decoding  
40db  
 
(Pro logic, etc.) 
 
Dolby Digital (AC-3) 
55db  
 
DTs   
55db
frequency Response 
 
@ 1W (+0db, –3db) 
10Hz–100kHz
High Instantaneous  
Current Capability (HCC) 
±25 Amps
Transient Intermodulation 
Distortion (TIM) 
Unmeasurable
Rise Time   
16µsec
slew Rate   
40V/µsec
FM Tuner Section
 
frequency Range 
87.5–108MHz
 
Usable sensitivity 
IHf 1.3 µV/13.2dbf
 
signal-to-Noise Ratio 
Mono/stereo: 70/65db (DIN)
 
Distortion 
Mono/stereo: 0.15/0.3%
 
stereo separation 
35db @ 1kHz
 
selectivity 
±400kHz: 70db
 
Image Rejection 
80db
 
If Rejection 
90db
AM Tuner Section
 
frequency Range 
522–1620kHz
 
signal-to-Noise Ratio 
45db
 
Usable sensitivity 
loop: 500µV
 
Distortion 
1kHz, 50% Mod: 0.8%
 
selectivity 
±10kHz: 30db
Video Section
 
Video format 
PAl/NTsC
 
Input level/Impedance 
1Vp-p/75 ohms
 
output level/Impedance 
1Vp-p/75 ohms
 
 Video frequency  
Response 
10Hz–8MHz (–3db)
General
 
Power Requirement 
AC 230V/50Hz
 
Power Consumption 
 72W idle, 580W maximum  
(2 channels driven)
 
Dimensions (Max) 
 
 
Width 
440mm 
 
 
Height 
165mm 
 
 
Depth 
382mm
 
Weight 
9.6 kg
Depth measurement includes knobs, buttons and terminal connections. 
Height measurement includes feet and chassis.
All features and specifications are subject to change without notice. 
Harman Kardon and logic 7 are trademarks of Harman International Industries, Incorporated, 
registered in the United states and/or other countries. 
Designed to Entertain is a trademark of Harman International Industries, Incorporated.
*Manufactured under license from Dolby laboratories. “Dolby”, “Pro logic”, AC-3 and the 
Double-D symbol are trademarks of Dolby laboratories, Inc.
Manufactured under license under U.s. Patent #’s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 
6,487,535; 7,003,467 & other U.s. and worldwide patents issued & pending. DTs, DTs Digital 
surround, Es, and Neo:6 are registered trademarks and the DTs logos symbol are trademarks of 
DTs, Inc. © 1996-2007 DTs, Inc. All Rights Reserved.
logic 7 is a registered trademark of lexicon, Inc.
HDMI is a trademark or registered trademark of HDMI licensing llC.
sACD is a trademark of sony Corporation.
0130CSK - HK AVR142 OM PRESS release02.indd   23
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harman/kardon
AVR 139-141-142/230 Service Manual
Page 3 of 83
ENGLISH
TROUBLESHOOTING GUIDE 25
Troubleshooting Guide
Processor Reset
In the rare case where the unit’s operation or the
displays seem abnormal, the cause may involve
the erratic operation of the system’s memory or
microprocessor.
To correct this problem, first unplug the unit
from the AC wall outlet and wait at least three
 minutes. After the pause, reconnect the AC
power cord and check the unit’s operation. If the
system still malfunctions, a system reset may
clear the problem.
To clear the AVR’s entire system  memory
 including tuner presets, output level settings,
delay times and speaker configuration data, first
put the unit in Standby by pressing the System
Power Control 
button 
1. Next, press and
hold the Surround Mode Button 
6 for 5 sec-
onds.
The unit will turn on automatically. Note that
once you have cleared the memory in this man-
ner, it is necessary to re- establish all system
 configuration  settings and tuner presets.
NOTE: Resetting the processor will erase any
configuration settings you have made for
 speakers, output levels, surround modes, digital
input assignments as well as the tuner presets.
After a reset the unit will be returned to the
 factory presets, and all settings for these items
must be reentered.
If the system is still operating incorrectly, there
may have been an electronic  discharge or severe
AC line interference that has corrupted the
 memory or  microprocessor.
If these steps do not solve the problem,  consult
an authorized Harman Kardon service depot.
SYMPTOM
CAUSE
SOLUTION
Unit does not function when 
• No AC Power
• Make certain AC power cord is plugged 
Main Power Switch 
 is pushed
into a live outlet
• Check to see if outlet is switch controlled
Display lights, but no sound 
• Intermittent input connections
• Make certain that all input and speaker 
or picture
connections are secure
• Mute is on
• Press Mute button 
4
• Volume control is down
• Turn up volume control
Sound is heard, but Front-Panel
• Display brightness is turned off
• Follow the instructions in the Display Brightness section 
Display does not light 
on page 23 so that the display is set to VFD FULL
No sound from any speaker; 
• Amplifier is in protection mode
• Check speaker-wire connections for shorts at receiver 
light around Power switch
1 is red
due to possible short
and speaker ends
• Amplifier is in protection mode 
• Contact your local Harman Kardon service depot
due to internal problems
No sound from surround or 
• Incorrect surround mode
• Select a mode other than Stereo
center speakers
• Incorrect configuration
• Check speaker mode 
• Stereo or Mono program material
• With (analog or digital) Dolby surround modes, the surround 
decoder may not create rear-channel 
information from non-encoded programs
• Speakers not properly connected
• Check speaker-wire connections or use test tone
to verify connections (see page 20)
Unit does not respond to 
• Weak batteries in remote
• Change remote batteries
remote commands
• Wrong device selected
• Press the AVR selector 
• Remote sensor
E is obscured
• Make certain front-panel sensor is visible to remote or 
connect remote sensor
Intermittent buzzing in tuner
• Local interference
• Move unit or antenna away from computers, fluorescent lights, 
motors or other  electrical appliances
Letters flash in the Channel Indicator
• Digital audio feed paused
• Resume play for DVD
Display 
 and Digital Audio stops
• Check that Digital Signal is fed to the Digital Input selected
0052CSK - AVR138_DVD28 ENG_v2.qxp:AVR138_DVD28_ENG  25/07/08  11:47  Side 25    (Sort/Black plade)
harman/kardon
AVR 139-141-142/230 Service Manual
Page 4 of 83
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Here you can view online or download Harman Kardon AVR 139 (serv.man4) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Harman Kardon AVR 139 (serv.man4) Audio. Information contained in Harman Kardon AVR 139 (serv.man4) 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).