Harman Kardon AVR145/230 User manual

harman/kardon
AVR145
5 X 40W 5.1 CHANNEL A/V RECEIVER
SERVICE MANUAL
CONTENTS
ESD WARNING........................ 2 ELECTRICAL PARTS LIST.... 12
LEAKAGE TESTING.................. 3 SEMICONDUCTOR PINOUTS 48
BASIC SPECIFICATIONS.......... 4 PCB DRAWINGS.................. 119
TROUBLESHOOTING GUIDE..... 5 BLOCK DIAGRAM................. 126
PROCESSOR RESET............... 5 WIRING DIAGRAM................ 127
PACKAGE LIST AND PARTS....... 6 AMP BIAS ADJUSTMENT 128
DISASSEMBLY 7 SCHEMATIC DIAGRAMS....... 129
UNIT EXPLODED VIEW AND PARTS 11
Released 2007
Discontinued XXXX Rev 0, 10/2007
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York, 11797
harman/kardon
AVR 145/230 service manual
Page 1 of 135

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 :
AVR145 harman/kardon
harman/kardon
AVR 145/230 service manual
Page 2 of 135
2
ELECTROSTATICALLY SENSITIVE DEVICES

SAFETY PRECAUTIONS
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.
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.
Device
under
test
Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter
plug as required)
AC Leakage Test
Leakage
current
tester
Reading should
not be above
0.5mA
Earth
ground
harman/kardon
AVR 145/230 service manual
Page 3 of 135

Technical Specifications AVR145/230
Audio Section
Stereo Mode
Continuous Average Power (FTC)
50 Watts per channel, 20Hz–20kHz,
@ < 0.07% THD, both channels driven into 8 ohms
5 Channel Surround Modes
Power Per Individual Channel
Front L&R channels:
40 Watts per channel,
@ < 0.07% THD, 20Hz–20kHz into 8 ohms
Center channel:
40 Watts, @ < 0.07% THD, 20Hz–20kHz into 8 ohms
Surround channels:
40 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) 100dB
Surround System Adjacent Channel Separation
Analog Decoding 40dB
(Pro Logic, etc.)
Dolby Digital (AC-3) 55dB
DTS 55dB
Frequency Response
@ 1W (+0dB, –3dB) 10Hz–130kHz
High Instantaneous
Current Capability (HCC) ±25 Amps
Transient Intermodulation
Distortion (TIM) Unmeasurable
Rise Time 16 µsec
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: 70/68dB (DIN)
Distortion Mono/Stereo: 0.2/0.3%
Stereo Separation 40dB @ 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
(Composite and S-Video) 10Hz–8MHz (-3dB)
Video Frequency
Response (Component) 10Hz–100MHz (-3dB)
General
Power Requirement AC 220–240V/50Hz
Power Consumption 65W idle, 540W maximum
(5 channels driven)
Dimensions (Max)
Width 440mm
Height 165mm
Depth 382mm
Weight 9.7 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, The Bridge and Logic 7 are
registered trademarks of Harman International Industries, Incorporated.
is a trademark of Harman International Industries, Inc.
*Manufactured under license from Dolby Laboratories.
“Dolby,” “Pro Logic” and the Double-D symbol are trademarks of Dolby Laboratories.
"DTS" and "DTS Neo:6" are registered trademarks of DTS,
Inc. "96/24" is a trademark of DTS, Inc.
SA-CD is a trademark of Sony Electronics, Inc.
Apple and iPod are registered trademarks of Apple Computer, Inc.
Cirrus is a registered trademark of Cirrus Logic Corp.
**Without input anti slewing and output isolation networks.
TM
harman/kardon
AVR 145/230 service manual
Page 4 of 135

45
TROUBLESHOOTING GUIDE
SYMPTOM CAUSE SOLUTION
Unit does not function when Main • No AC Power • Make certain AC power cord is plugged into
Power Switch is pushed a live outlet
• Check to see whether outlet is switch-controlled
Display lights, but no sound • Intermittent input connections • Make certain that all input and speaker connections
or picture are secure
• Mute is on • Press Mute Button
• Volume control is down •Turn up volume control
No sound from any speaker; • Amplifier is in protection mode • Check speaker wire connections for shorts at receiver and
light around power switch is red due to possible short speaker ends
• Amplifier is in protection mode • Contact your local Harman Kardon service center
due to internal problems
No sound from surround or • Incorrect surround mode • Select a mode other than Stereo
center speakers • Input is monaural • There is no surround information from mono sources
• Incorrect configuration • Check speaker mode configuration
• Stereo or Mono program material • The surround decoder may not create center- or rear-channel
information from nonencoded programs
Unit does not respond to • Weak batteries in remote • Change remote batteries
remote commands • Wrong device selected • Press the AVR selector
• Remote sensor is obscured • Make certain front panel sensor is visible to remote
or connect an optional 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 Input is selected
In addition to the items shown above, additional information on troubleshooting possible problems with your AVR 145, or installation-related issues, may
be found in the list of "Frequently Asked Questions" which is located in the Product Support section of our Web site at www.harmankardon.com.
AVR 145 OM (New) 8/4/06 1:19 PM Page 45
harman/kardon
AVR 145/230 service manual
Page 5 of 135

NO DESCRIPTION PARTS NO. Q,ty
1
2
3
4
5
1
ACCESSORY-1
BOX,OUT CARTON5
6
1
3
DESCRIPTIONNO
CPS4A564
CQXAVR145/230
CPG1A820W
1
1
1
Q,tyPARTS NO.
CPS4A565
SNOW,PAD(R)
4
1
1. Instruction manual ass'y - Accessories 2. Package Drawing
7
1
1
SNOW,PAD(L)
AVR145/230
SET AVR145/230SET 1
FM 1 POL ANT CSA1A018Z 1
1
NO DESCRIPTION PARTS NO. Q,ty
9
10
11
12
13
1CPB1061YPOLY BAG
CQX1A1135YMANUAL,INSTRUCTION
MANUAL ,SETUP GUIDE
1
1
BOOKLET,INFORMATION CQE1A180Z 1
STAPLE CPL0905 3
ACCESSORY-2
ACCESSORY-1
CPB1061Y
POLY BAG
CSA1A027Z
AM LOOP ANTENNA ASS'Y 1
CABR03P3
BATTERY 3
COVER ASS'Y CGRAVR130/230ZA
POLY BAG
1
12
7
23
AM LOOP ANTENNA ASS'Y BATTERY ASS'Y
4
FM 1 POLE ANT
5
COVER ASS'Y
6
BOOKLET,INFORMATION
9
MANUAL INSTRUCTION
10
MANUAL SETUP CODE
11
1
1CGR1A332M7H43
CQE1A220Z
CPS1A676 1
CPB1A176Z 1
1
2
3
4
5
CGR1A331M7H43 1
PAD , COVER
COVER A
COVER B
SHEET,FRONT COVER
BAG , POLY
ACCESSORY-2 CQXAVR145/230
CQX1A1138X
13
1
IMAGE BROCHURES HQE1A273Z
IMAGE BROCHURES
STAPLE
POLY BAG
ACCESSORY-1
1
SNOW PAD (R)
3
BOX ,OUT CARTON
5
SET
4
SNOW PAD (L)
2
ACCESSORY-2
6
REMOCON
TRANSMITTER ASS'Y
2
6
STAPLE
8
8 STAPLE CPL0905 3
REMOCON ASS'Y CARTAVR145/230 1
harman/kardon
AVR 145/230 service manual
Page 6 of 135

1
2
1
1. Removing the Top Cabinet
Remove the Screws
5
4
6
DISASSEMBLY
~
13
11
10
7
9
13
3
12
8
7
5
6
8
9
4
3
2
1
Remove the Screws
2. Removing the Front Panel
1 9
~
6
3
4
7
Remove the Screws
4. Removing the Main PCB
1
25
~
1 7
~
1
25
Remove the Screws
3. Removing the Rear Panel
AVR145/230
25
10
9
8
19
7
65
20 21 22
16
15
4 3 2 117 18
23 24
11 12 13 14
harman/kardon
AVR 145/230 service manual
Page 7 of 135

AVR145 DISASSEMBLY PROCEDURE
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. Disconnect the connector (CN89) on the FIP PCB (37-1) from lead wire (BN89-4P) on the Key PCB (37-2).
7. Remove 3 screws (S2) and then remove the Guide PCB (37-8) & the FIP PCB (37-1).
7 KEY PCB (37-2) 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. Remove the FIP PCB (37-1), referring to the previous step6.
4. Remove 10 screws (S2) and then remove the Key PCB (37-2).
AVR145 harman/kardon
Page 8 of 135

8 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 Input PCB (39-1).
3. Remove 2 screws (S8) and then remove the Tuner Module (42).
9 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 the card cable between connector (CN42) on the Video PCB (41) and connector (BN44-7p) on the I-Pod PCB (39-2).
5. Disconnect connector (CN41) on the Video PCB (41) from the lead wire (BN41-6P) on the Volume PCB (37-6).
6. Remove 6 screws (S8) and then remove the Video PCB (41).
10 I-POD PCB (39-2) REMOVAL
1. Remove the Top-cabinet, referring to the previous step 1.
2. Remove the Video PCB (41), referring to the previous step9
3. Disconnect connector (CN46) on the I-Pod PCB (39-2) from the lead wire (BN46-3P) on the Input PCB (39-1).
4. Disconnect the card cable between connector (BN19-9p)) on the I-Pod PCB (39-2) and connector (CN19) on the Input PCB (39-1).
5. Disconnect the card cable between connector (BN44-7p)) on the I-Pod PCB (39-2) and connector (CN42) on the Video PCB (41).
6. Disconnect the card cable between connector (CN47-7p)) on the I-Pod PCB (39-2) and connector (CN47) on the RS232 PCB (37-7).
7. Remove 2 screws (S13) and then remove the I-Pod PCB (39-2).
11 RS232 PCB (37-7) REMOVAL
1. Remove the Top-cabinet, referring to the previous step 1.
2. Remove the Video PCB (41), referring to the previous step9
3. Disconnect the card cable between connector (CN47) on the RS232 PCB (37-7) and connector (CN47-7) on the RS232 PCB (37-7).
4. Remove 2 screws and then remove the RS232 PCB (37-7).
12 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 step8
3. Remove the Video PCB (41), referring to the previous step9
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 (BN14-13p)) on the Video PCB (41).
9. Disconnect the card cable between connector (CN19) on the Input PCB (39-1) and connector (BN19-9p) on the I-Pod PCB (39-2)
10. Disconnect the lead wire (BN46-3P) on the Input PCB (39-1) from connector (CN46) on the I-Pod PCB (39-2).
11. Disconnect the card cable between connector (CN12-21p) on the Input PCB (39-1) and connector (CN12-21p)
on the main PCB (38-1)
12. Disconnect the card cable between connector (CN11-13p) on the Input PCB (39-1) and connector (CN11) on the main PCB (38-1)
13. Disconnect the card cable between connector (CN72) on the Input PCB (39-1) and connector (CN72-17p) on the FIP PCB (37-1)
14. Remove 11 screws (S8,S15) and then remove the Input PCB (39-1).
13 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 .
AVR145 harman/kardon
Page 9 of 135

14 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 step8.
3. Remove the Video PCB (41) referring to the previous step9.
4. Remove the I-Pod PCB (39-2), referring to the previous step 10.
5. Remove the RS232 PCB (37-7), referring to the previous step 11.
6. Remove the Input PCB (39-1), referring to the previous step 12.
7. Remove theAC Cord(35) on the Main PCB (38-1)
8. Disconnect the lead wire (BN90-2P) on the Main PCB (38-1) from connector (CN86) on Moms PCB (37-4).
9. Disconnect connector (CN91-3P) on the Main PCB (38-1) from lead wire of the Power Trans (36)
10. Disconnect the lead wire (BN89-2P) on the Main PCB (38-1) from connector (CN89) on Regulator PCB (A)(40-2).
11. 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).
12. Remove 11screws (S13-1EA, S4-2EA, S6-2EA, S8-6EA) and then remove the Main PCB ASS’Y (38-1).
AVR145 harman/kardon
Page 10 of 135