PACKAGE LIST AND PARTS……….…...6 AMP BIAS ADJUSTMENT….…....…..80
DISASSEMBLY………………………….…7 SCHEMATIC DIAGRAMS……………81
UNIT EXPLODED VIEW AND PARTS...11
Released EU2008 harman/kardon, Inc. Rev 0, 04/2008
250 Crossways Park Dr.
Woodbury, New York, 11797
harman/kardon
AVR137/230 Service Manual
Page 2 of 87
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.
CAUTION :
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.
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
Each precaution in this manual should be followed during servicing.
Components identified with the IEC symbolin 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.
SAFETY PRECAUTIONS
ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A
POTENTIAL SHOCK HAZARD AND MUST BE
CORRECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.
harman/kardon
AVR137/230 Service Manual
Page 3 of 87
The following check should be performed for the continued
protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
between the earth ground and all exposed metal parts of the
appliance (input/output terminals, screwheads, metal
overlays, control shaft, etc.). Plug the AC line cord of the
appliance directly into a 120V AC 60Hz outlet and turn the
AC power switch on. Any current measured must not exceed
o.5mA.
Reading should
not be above
0.5mA
Device
under
Leakage
current
tester
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
Earth
ground
AC Leakage Test
Technical Specifications
harman/kardon
AVR137/230 Service Manual
Page 4 of 87
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
Front L&R channels:
30 Watts per channel,
@ < 0.07% THD, 20Hz–20kHz into 8 ohms
Center channel:
30 Watts, @ < 0.07% THD, 20Hz–20kHz into 8 ohms
Surround channels:
30 Watts per channel,
@ < 0.07% THD, 20Hz–20kHz into 8 ohms
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
DTS55dB
Frequency Response
@ 1W (+0dB, –3dB)10Hz–100kHz
High Instantaneous
Current Capability (HCC)±25 Amps
Transient Intermodulation
Video FormatPAL/NTSC
Input Level/Impedance1Vp-p/75 ohms
Output Level/Impedance 1Vp-p /75 ohms
Video Frequency
Response10Hz–8MHz (–3dB)
General
Power RequirementAC 220-240V/50Hz
Power Consumption72W idle, 580W maximum
(2 channels driven)
Dimensions (Max)
Width440mm
Height165mm
Depth382mm
Weight9.6 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.
"DTS" and "DTS Neo:6" are registered trademarks of DTS, Inc. "96/24"
is a trademark of DTS, Inc.
Logic 7 is a registered trademark of Lexicon, Inc.
Troubleshooting Guide
harman/kardon
AVR137/230 Service Manual
Page 5 of 87
SYMPTOMCAUSESOLUTION
Unit does not function when • No AC Power• Make certain AC power cord is plugged
Main Power Switch
Display lights, but no sound • Intermittent input connections• Make certain that all input and speaker
or pictureconnections are secure
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 27 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
No sound from surround or • Incorrect surround mode• Select a mode other than Stereo
center speakers• Incorrect configuration• Check speaker mode
is pushedinto a live outlet
• Check to see if outlet is switch controlled
• Mute is on• Press Mute button
• Volume control is down• Turn up volume control
1
is reddue to possible shortand speaker ends
• Amplifier is in protection mode • Contact your local Harman Kardon service depot
due to internal problems
• 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 sensorEis 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
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 SystemPower Control button
the Surround Mode Button
The unit will turn on automatically. Note that
once you have cleared the memory in this manner,
it is necessary to re-establish all system
configuration settings and tuner presets.
1
. Next, press and hold
6
for 5 seconds.
5
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.
1. Instruction manual ass'y - Accessories
harman/kardon
AVR137/230 Service Manual
Page 6 of 87
AVR 137/230
2. Package Drawing
1
5
9
POLY BAG
COVER ASS'Y
2
AM LOOP ANTENNA ASS'Y
6
IMAGE BROCHURES
10
3
BATTERY ASS'Y
7
REMOCON
TRANSMITTER ASS'Y
11
4
FM 1 POLE ANT
8
STAPLE
12
2
SNOW PAD (L)
SET
4
ACCESSORY-1
1
SNOW PAD (R)
3
BOX ,OUT CARTON
5
POLY BAG
BOOKLET,INFORMATION
ACCESSORY-1
NO
1
2
3
4
5
6
7
8STAPLECPL09053
DESCRIPTION
POLY BAG
AM LOOP ANTENNA ASS'Y
BATTERY3
FM 1 POL ANT(UL)
COVER ASS'Y
1
COVER A
2
COVER B
SHEET,FRONT COVER
3
PAD , COVER
4
5
BAG , POLY
IMAGE BROCHURES
REMOCON ASS'YCARTAVR132/2301
PARTS NO.Q,ty
CPB1061Y
CSA1A027Z
CABR03P3
CSA1A018Z1
CGRAVR130/230ZA
CGR1A331M7H431
CQE1A220Z
CPS1A6761
CPB1A176Z1
HQE1A273Z
MANUAL INSTRUCTION
MANUAL SETUP CODE
13
1
1
STAPLE
1
1
NO
1CGR1A332M7H43
1
1
DESCRIPTION
9
BOOKLET,INFORMATION
10
11
12
MANUAL ,SETUP GUIDE
13
STAPLECPL09053
ACCESSORY-2
PARTS NO.Q,ty
CQE1A180Z1
CQX1A1154XMANUAL,INSTRUCTION
CQX1A1138Y
DESCRIPTIONNO
ACCESSORY-1
1CPB1061YPOLY BAG
1
1
1
SNOW,PAD(L)
2
3
SNOW,PAD(R)
4
SET
BOX,OUT CARTON5
6
ACCESSORY-2CQXAVR132/230
CQXAVR132/230
CPS4A564
CPS4A565
AVR132/230SET
CPG1A820T
Q,tyPARTS NO.
1
1
1
1
1
1
ACCESSORY-2
6
DISASSEMBLY
harman/kardon
AVR137/230 Service Manual
Page 7 of 87
AVR137/230
1. Removing the Top Cabinet
Remove the Screws
6
4
5
3. Removing the Rear Panel
13
1
~
10
9
11
7
8
12
13
3
1
Remove the Screws
6
7
8
9
10
14
5
4321
151617
18
1
~
13
11
12
18
2
4. Removing the Main PCB
17
Remove the Screws
~
2. Removing the Front Panel
9
8
7
6
5
4
Remove the Screws
1
2
3
19
~
1
2
5
6
3
4
7
DISASSEMBLY PROCEDURES for HK AVR 137
harman/kardon
AVR137/230 Service Manual
Page 8 of 87
<1> TOP-CABINET(21) REMOVAL
1. Remove 13 screws(S1,S7) and then remove the Top-cabinet.
<2> FRONT PANEL ASS’Y REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect the card cable between connector(CN72-17p) on the Fip PCB(37-1)
and connector(CN72) on the Input PCB(39-1).
3. Disconnect the lead wire(BN81-8P) on the Fip PCB(37-1) from connector(CN81) on the Trans PCB(40-4).
4. Disconnect the lead wire(BN22-6P) on the Phone PCB(37-5) from connector(CN22) on the Input PCB(39-1).
5. Disconnect the lead wire(BN18-5P) on the Phone PCB(37-5) from connector(CN18) on the Input PCB(39-1)
6. Disconnect the lead wire(BN10-4P) on the Volume PCB(37-6) from connector(CN10) on the Input PCB(39-1)
7. Disconnect the lead wire(BN41-6P) on the Volume PCB(37-6) from connector(CN41) on the Video PCB(41)
8. Remove 1 screw(S10) and then lead wire(JW82-1P,JW83-1P) on the Phone PCB(37-5).
9 .Remove 1screw(S10) and then lead wire(JW84-1P) on the Volume PCB(37-3).
10. Remove 10 screws(S1) and then remove the Front Panel ASS’Y.
<3> Volume PCB(37-6) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Front Panel ASS’Y, referring to the previous step<2>.
3. Pull out the Volume Knob ASS’Y.
4. Disconnect connector(CN84) on the Volume PCB(37-6) from the lead wire(BN84-5P) on the Fip PCB(37-1).
5. Remove 8 screws(S2,S14), and then remove the Volume PCB(37-6).
<4>PHONE PCB(37-5) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Front Panel ASS’Y, referring to the previous step<2>.
3.. Disconnect connector(CN85)on the Phone PCB(37-5) from the lead wire(BN85-2P) on the Fip PCB(37-1).
4. Remove 2 screws(S2) and then remove the Phone PCB(37-5).
.
<5>POWER LED PCB(37-3) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Front Panel ASS’Y, referring to the previous step<2>.
3. Disconnect connector(CN88) on the Power Led PCB(37-3) from the lead wire(BN88-4P) on the Fip PCB(37-1) .
4. Remove 2 screws(S2) and then remove the Power led PCB(37-3).
<6>FIP PCB(37-1) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Front Panel ASS’Y, referring to the previous step<2>.
3. Disconnect the lead wire(BN84-5P) on the Fip PCB(37-1) from connector(CN84) on the Volume PCB(37-6).
4. Disconnect the lead wire(BN85-2P) on the Fip PCB(37-1) from connector(CN85) on the Phone PCB(37-5).
5. Disconnect the lead wire(BN88-4P) on the Fip PCB(37-1) from connector(CN88) on the Power Led PCB(37-3).
6. Remove 3 screws(S2) and then remove the Guide PCB(37-8) & the Fip PCB(37-1).
<7>TUNER MODULE(42) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect the card cable between connector(CON1-13p) on the Tuner module(42)
and connector(CN13) on the Input PCB(39-1).
3. Remove 2 screws(S8) and then remove the Tuner Module(42).
harman/kardon
AVR137/230 Service Manual
Page 9 of 87
<8>VIDEO PCB(41) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect the card cable between connector(BN14-13p) on the Video PCB(41)
and connector(CN14) on the Input PCB(39-1).
3. Disconnect connector(CN43) on the Video PCB(41)
from the lead wire(BN43-4P) on the Regulator PCB(A)(40-2).
4. Disconnect connector(CN41) on the Video PCB(41) from the lead wire(BN41-6P) on the Volume PCB(37-6).
5. Remove 6 screws(S8) and then remove the Video PCB(41).
<9>INPUT PCB(39-1) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Tuner module(42), referring to the previous step<7>
3. Remove the Video PCB(41), referring to the previous step<8>
4. Disconnect connector(CN20) on the the Input PCB(39-1)
from the lead wire(BN20-5P) on the Regulator PCB(B)(40-5).
5. Disconnect connector(CN22) on the Input PCB(39-1) from the lead wire(BN22-6P) on the Phone PCB(37-5).
6. Disconnect connector(CN18) on the Input PCB(39-1) from the lead wire(BN18-5P) on the Phone PCB(37-5)
7. Disconnect connector(CN10) on the Input PCB(39-1) from the lead wire(BN10-4P) on the Volume PCB(37-6).
8. Disconnect the card cable between connector(CN14) on the Input PCB(39-1).
and connector(BN14-9p) on the Video PCB(41).
9. Disconnect the card cable between connector(CN12-21p) on the Input PCB(39-1)
and connector(CN12-21p)) on the main PCB(38-1)
10. Disconnect the card cable between connector(CN11-13p) on the Input PCB(39-1)
and connector(CN11-13p) on the main PCB(38-1)
11. Disconnect connector(CN49) on the Input PCB(39-1) from the lead wire(BN49-5P) on the Rds PCB(39-2).
12. Remove 11 screws(S8,S15) and then remove the Input PCB(39-1).
<10>POWER TRANS(36) & POWER PCB ASS’Y(40) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Disconnect lead wire of the Power Trans(36) from connector (CN91-3P) on the Main PCB(38-1)
3. Disconnect connector(CN19-3P,CN20-4P) on TRANS PCB(40-3)
from the lead wire(BN19-3P,BN20-4P) on the Main PCB(38-1).
4. Disconnect the lead wire(BN96-8P) on the Power PCB(40-4)
from connector(CN96) on the Regulator PCB(B)(40-5).
5. Disconnect the lead wire(BN99-8P) on the Power PCB(40-4)
from connector(CN99) on the Regulator PCB(A)(40-2).
6. Disconnect connector(CN81) on the Trans PCB(40-4) from the lead wire(BN81-8P) on the Fip PCB(37-1).
7. Remove 4 Trans screws(S9) and then remove the Power Trans(36)& Power PCB ASS’Y(40) REMOVAL .
<11>MAIN PCB ASS’Y(38-1) REMOVAL
1. Remove the Top-cabinet, referring to the previous step<1>.
2. Remove the Tuner module(42), referring to the previous step<7>.
3. Remove the Video PCB(41) referring to the previous step<8>.
5. Remove the Input PCB(39-1), referring to the previous step<9>.
6. Remove the AC Cord(35) on the Main PCB(38-1)
7. Disconnect the lead wire(BN90-2P) on the Main PCB(38-1) from connector(CN86) on Moms PCB(37-4).
8. Disconnect connector (CN91-3P) on the Main PCB(38-1) from lead wire of the Power Trans(36)
harman/kardon
AVR137/230 Service Manual
Page 10 of 87
9. Disconnect the lead wire(BN89-2P) on the Main PCB(38-1) from connector(CN89) on Regulator PCB(A)(40-2).
10. Disconnect the lead wire(BN19-3P,BN20-4P) on the Main PCB(38-1)
from connector(CN19-3P,CN20-4P) on TRANS PCB(40-4).
11. Remove 11screws(S13-1EA, S4-2EA, S6-2EA, S8-6EA) and then remove the Main PCB ASS’Y(38-1).