Page 1: Service Manual
AVR325 A/V DOLBY DIGITAL RECEIVER SERVICE MANUAL CONTENTS TECH TIP HKTT2003-01………………….22 ESD WARNING………………………….…….2 EXPLODED VIEW………….……..……….23 LEAKAGE TESTING………………..……..3 EXPLODED VIEW PARTS LIST………….24 BASIC SPECIFICATIONS…………….….…..4 AMPLIFIER BIAS ADJUSTMENT……...…27 FRONT PANEL CONTROLS………………...5 BLOCK DIAGRAM………………………….31 FRONT PANEL DISPLAY…………………….7 ELECTRICAL PARTS LIST………..…..….32 REAR PANEL CONNECTIONS……..….……8 PCB DRAWINGS………………….…….…83...
Page 2 AVR325 harman/kardon 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.
Page 3 AVR325 harman/kardon Before returning the unit to the user, perform the following safety checks : 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the unit.
Page 4 Height measurement includes feet and chassis. Current Capability (HCC) ±35 Amps All features and specifications are subject to change without notice. Transient Intermodulation Harman Kardon and Power for the Digital Revolution are registered trademarks of Distortion (TIM) Unmeasurable Harman International Industries, Incorporated. Slew Rate 40V/µsec...
Page 5 AVR325 harman/kardon FRONT-PANEL CONTROLS FRONT-PANEL CONTROLS ˘ ˜ ı Ò ¯ ˆ Ú AVR 325 LOGIC 7 VMAx ready & Ô Ó  1 Main Power Switch Û Delay Adjust Selector Button › 2 System Power Control $ Preset Station Selector Ù...
Page 6 AVR325 harman/kardon FRONT-PANEL CONTROLS ı Volume Control: Turn this knob clockwise to press this button to select Dolby modes, and then to switch between Stereo and Mono modes for FM press the Surround Mode Selector 8 to choose radio reception. When weak reception is encountered,...
Page 7 AVR325 harman/kardon FRONT-PANEL INFORMATION DISPLAY A Upper Display Line F PRESET Indicator K 192kHz Indicator B Lower Display Line G MEMORY Indicator L 96kHz Indicator C OSD Indicator H STEREO Indicator D Multiroom Indicator I TUNED Indicator E Speaker/Channel Input Indicators J AUTO Indicator A Upper Display Line: Depending on the unit’s status,...
Page 8 AVR325 harman/kardon REAR-PANEL CONNECTIONS REAR-PANEL CONNECTIONS · ‡ ﬁ ° ﬂ › AVR 325 ¡ £ • ª ‚ ⁄ ‹ ™ ¢ ∞ § ¶ ¡ AM Antenna ﬁ DVD Video Inputs j Multiroom Audio Outputs ™ FM Antenna ﬂ...
Page 9 Connect this jack to the “IR IN” jack on not blocked and that there is at least three inches of Harman Kardon (or other compatible) equipment. ﬁ DVD Video Inputs: Connect the composite or S- open space between the vent holes and any wooden i Coaxial Digital Audio Output: Connect this jack or fabric surface.
Page 10 AVR325 harman/kardon REAR-PANEL CONNECTIONS Coaxial Digital Audio Inputs: Connect the coax digital output from a DVD player, HDTV receiver, the S/P-DIF output of a compatible computer sound card playing MP3 files or streams, LD player or CD player to these jacks. The signal may be a Dolby Digital signal, DTS signal or a standard PCM digital source.
Page 11: Main Remote Control Functions
AVR325 harman/kardon MAIN REMOTE CONTROL FUNCTIONS a Power Off Button b IR Transmitter Window c Program/SPL Indicator d Power On Button e Input Selectors f AVR Selector g AM/FM Tuner Select h 6-Channel/8-Channel Direct Input i Test Button j Sleep Button...
Page 12 AVR 325 and most change a digital input) and then press one of these Harman Kardon CD or DVD players and cassette buttons to scroll through the list of options or to h 6-Channel/8-Channel Direct Input: Press decks.
Page 13 AVR325 harman/kardon MAIN REMOTE CONTROL FUNCTIONS MAIN REMOTE CONTROL FUNCTIONS v OSD Button: Press this button to activate the Macro Buttons: Press these buttons to store or Volume Up/Down: Press these buttons to raise On-Screen Display (OSD) system used to set up or recall a “Macro”...
Page 14: Installation And Connections
AVR325 harman/kardon INSTALLATION AND CONNECTIONS 7. Connect the front, center, surround and surround 8. Connections to a subwoofer are normally made via System Installation back speaker outputs §¶ª‚ to the respective a line-level audio connection from the Subwoofer After unpacking the unit, locating it in a place with ade- Output ¢...
Page 15: System And Power Connections
NOTE: For all options, you may connect an optional IR the Remote IR Input jack on Harman Kardon or other power switch that may be left in the “ON” position.
Page 16 AVR325 harman/kardon INSTALLATION AND CONNECTIONS The AVR 325 features a removable power cord that allows wires to be run to a complex installation so that the unit itself need not be installed until it is ready for connection. When all connections described above have been made, connect the AC power cord to the AC Power Cord Jack ‹.
Page 17: Processor Reset
• 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 •...
Page 18 Model: AVR325/AVR525 Subject: Software Upgrade A software upgrade is possible for the sub Micro CXP82852-375Q (IC12) in models AVR325 and AVR525; units without the upgrade may exhibit the following symptoms: 1) Dolby Digital EX mode only, Delay adjustment, any speaker size selected: Adjusting the delay time at 14 feet or greater for surround back, surround or center channels, may generate a distortion (like a feedback signal) from the subwoofer output.
Page 19 Model: AVR325, AVR525, AVR430, AVR630 Subject: Rewiring Bias/Fan cables In the event you receive an AVR325, AVR525, AVR430 or AVR630 with the complaint: “the unit intermittently goes in standby or the fan runs constantly” perform the following modification. Please note other component or connection failures can cause the unit to go in to standby.
Page 20 AVR325 harman/kardon 4) Unplug each the cable on the Bias PCB, desolder the female plugs, cut the connectors off each wire, strip the insulation 1/8” on each end and solder directly to the PCB assembly in each location. 5) For locations N801, N802, N803, N804 on the Main PCB, set the unit on its side and remove the bottom grille.
Page 21 AVR325-525: VR31,41,51 and P301,308,309 are located at the center of the Surround PCB AVR430-630: VR31,32,51 and P301,308,309 are located at the top edge of the Surround PCB...
Page 22 AVR325 harman/kardon TECH TIPS harman/kardon Troubleshooting tips and solutions to common service problems TIP# HKTT2003-01 Rev5 For models: AVR7000/7200/7300/8000 AVR10 AVR100/200/300/500 DPR1001 AVR110/210/310/510 DPR1005 AVR120/220/320/520 DPR2005 AVR125/225/325/525 HK3370/3470/3375/3475 AVR130/230/330/430/630 HK3250 AVR135/235/335/435/635 Subject: Backup Memory on AVR/DPR/HK series receivers In the event of the complaint: “the receiver is losing its memory (any programmed system settings) when the unit is turned off, or after the unit is unplugged (briefly*)”:...
Page 23 AVR325 harman/kardon...
Page 24 AC PLASTIC MOLD REFRACTOR F WH 55406440XX AC CPL CABINET CHASSIS FRONT AVR325 55507280 TF-LAM POWER-TRANSFORMER 120 V 55406640XX AC PUN COVER TRANS BOTTOM AVR325 -- 55406840XX AC PUN BRACKET FAN FRONT AVR325 55509100XX FAN RDL8025B C185HS10H1910 ( WIRE:300MM) 0 A0 55436090XX...
Page 25 AVR325 harman/kardon 55405670XX AC CPL REAR PANEL AVR325 55554510 AC PLASTIC DUST COVER AVR325 67472300NR CONN-SPE 87204-6063 SUB D FE 2.77MM 9 -- 1630 A1 55176390XX CON PHONO SCKT STEREO JACK JW350S 55176420XX AC PUN BRACKET BKT GROUND ET 0.5T AVR520...
Page 26 AVR325 AVR325/525 Alignment spec. rev01. 1. MAIN B'D : 5 Min. After power on, please set up Bias as below, Front Left > adjusting VR71, check P801 to 23mV +2mV/- 1mV. Surr Left > adjusting VR73 check P803 to 23mV +2mv/-1mV.
Page 27 AVR325 VR71 FRONT L-CH VR73 SURROUND L-CH P804 FRONT R-CH P802 SURROUND R-CH...
Page 28 AVR325 VR74 FRONT R-CH VR72 SURROUND R-CH...
Page 29 AVR325 2. BACK SURROUND B'D : 5 Min. After power on, please set up Bias as below, SBL > adjusting VR31 check P301 to 23mV +2mv/-1mV. Center > adjusting VR41 check P308 to 23mV +2mV/-1mV. SBR > adjusting VR51 check P309 to 23mV +2mV/-1mV.
Page 30 AVR325 P309 VR51 BACK SURROUND R-CH...
Page 32 AVR325 harman/kardon AVR325 Electrical Parts List Ref. Description Designator SURROUND PCB Capacitors CE 470U0F +20% 63.0V 85C C301 13076940AM CE 470U0F +20% 63.0V 85C C302 13076940AM C303 CE 10U0F +20% 50.0V 85C 2026888030 CC 270P0F +10% -10% 50.0V Y5P C304 7042839071 CE 100U0F +20% 25.0V 85C...
Page 33 AVR325 harman/kardon Ref. Description Designator SURROUND PCB D-SLP 1N4148 100.0V 150E-3A D302 7043654016 D-SLP 1N4148 100.0V 150E-3A D303 7043654016 D304 D-SLP 1N4148 100.0V 150E-3A 7043654016 D-SLP 1N4148 100.0V 150E-3A D401 7043654016 D-SLP 1N4148 100.0V 150E-3A D402 7043654016 D403 D-SLP 1N4148 100.0V 150E-3A 7043654016 D-SLP 1N4148 100.0V 150E-3A...
Page 34 AVR325 harman/kardon Ref. Description Designator SURROUND PCB TR-SLPLF KTA1024 Y P 50MI0A -150V Q508 5513326056 TR-SLPLF KTC3206 Y N 50MI0A 150V Q509 5513324056 Q511 TR-SLPLF KTA1024 Y P 50MI0A -150V 5513326056 TR-SLPLF KTC3206 Y N 50MI0A 150V Q512 5513324056 TR-SLPLF KTC3206 Y N 50MI0A 150V...
Page 35 AVR325 harman/kardon Ref. Description Designator SURROUND PCB RCF 22K0 OHM +5% 250MI0W R344 6044158016 RMOF 10R0 OHM +5% 1.0W R345 6044255016 R346 RCF 100K0 OHM +5% 250MI0W 3093951016 RCF 330R0 OHM +5% 250MI0W R401 6044155016 RCF 33K0 OHM +5% 250MI0W...
Page 36 AVR325 harman/kardon Ref. Description Designator SURROUND PCB RCF 560R0 OHM +5% 250MI0W R511 6044156016 RMF 33K0 OHM +1% 250MI0W R512 5549851016 R513 RCF 1K8 OHM +5% 250MI0W 8043701016 RCF 560R0 OHM +5% 250MI0W R514 6044156016 RCF 560R0 OHM +5% 250MI0W...
Page 37 AVR325 harman/kardon Ref. Description Designator SURROUND PCB CONN 2.5MM 2 MA R NAT 0 0 P309 55104560 CONN 2.0MM 3 MA ST NAT LW2002P03 0 0 P310 55090080 POS 100R0 OHM 16.0V PO51 55179640NR POS 100R0 OHM 16.0V PO52 55505180NR...
Page 38 AVR325 harman/kardon Ref. Description Designator DSP PCB CCCFMIC 1N0F +10% -10% 50.0V X7R C157 1013855091 CE 10U0F +20% 16.0V 85C C158 1012100039 C159 CE 100U0F +20% 16.0V 85C 1024427039 CE 100U0F +20% 16.0V 85C C160 1024427039 CE 10U0F +20% 16.0V 85C...
Page 39 AVR325 harman/kardon Ref. Description Designator DSP PCB CCCFMIC 100P0F +5% -5% 50.0V NP0 C223 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0 C224 2050659091 CE 1MI0F +20% 6.3V 85C C230 20269180AM CE 1MI0F +20% 6.3V 85C C231 20269180AM CCCFMIC 100N0F +80% -20% 16.0V Y5V...
Page 40 IC-CONV CS4382-KQ 8CH D/A IC06 55451460MS IC-OPERAMP NJM2068M DUAL OP IC07 55142610MT IC-LOGIC M74HCU04M1R INVERTER HCT IC09 55133310MT IC-MICROCONT CXP82852-375Q SUB AVR325 IC12 55519380MS IC-LOGIC M74HCU04M1R INVERTER HCT IC14 55133310MT IC-EPROM AT27LV040A-90JC IC15 55157760KV IC-SPECFUNC AK4114VQ LQFP48 DIGITAL INTERFACE TRANS...
Page 41 AVR325 harman/kardon Ref. Description Designator DSP PCB RMGCFMIC 100K0 OHM +5% 62MI5W R103 1013534091 RMGCFMIC 100K0 OHM +5% 62MI5W R104 1013534091 RMGCFMIC 100K0 OHM +5% 62MI5W R107 1013534091 RMGCFMIC 100K0 OHM +5% 62MI5W R108 1013534091 RMGCFMIC 1K0 OHM +5% 62MI5W...
Page 42 AVR325 harman/kardon Ref. Description Designator DSP PCB RMGCFMIC 20K0 OHM +5% 62MI5W R168 1013509091 RMGCFMIC 10K0 OHM +5% 62MI5W R169 1013501091 RMGCFMIC 4K7 OHM +5% 62MI5W 1013594091 RMGCFMIC 10K0 OHM +5% 62MI5W R170 1013501091 RMGCFMIC 1K0 OHM +5% 62MI5W R171...
Page 43 AVR325 harman/kardon Ref. Description Designator DSP PCB RMGCFMIC 1K0 OHM +5% 62MI5W R233 1013577091 RMGCFMIC 47K0 OHM +5% 62MI5W R234 1013522091 RMGCFMIC 1K0 OHM +5% 62MI5W R235 1013577091 RMGCFMIC 4K7 OHM +5% 62MI5W 1013594091 RMGCFMIC 47K0 OHM +5% 62MI5W R242...
Page 44 AVR325 harman/kardon Ref. Description Designator DSP PCB RMGCFMIC 100R0 OHM +5% 62MI5W R357 1013474091 RMGCFMIC 680R0 OHM +5% 62MI5W R359 1013495091 RMGCFMIC 620R0 OHM +5% 62MI5W R360 1013494091 RMGCFMIC 10R0 OHM +5% 62MI5W R362 1013441091 RMGCFMIC 10R0 OHM +5% 62MI5W...
Page 45 AVR325 harman/kardon Ref. Description Designator DSP PCB RMGCFMIC 3K3 OHM +5% 62MI5W R433 1013590091 RMGCFMIC 10R0 OHM +5% 62MI5W R434 1013441091 RMGCFMIC 4K7 OHM +5% 62MI5W 1013594091 RMGCFMIC 4K7 OHM +5% 62MI5W 1013594091 RMGCFMIC 4K7 OHM +5% 62MI5W 1013594091 RMGCFMIC 4K7 OHM +5% 62MI5W...
Page 46 AVR325 harman/kardon Ref. Description Designator DSP PCB VCXO 12M288 HZ +50 PPM -50 PPM 0 OHM 3.3V Y101 553483500 POWER SUPPLY PCB Capacitors C101 CC 100N0F +80% -20% 50.0V F 2029347016 C102 CE 100U0F +20% 35.0V 85C 1303935030 C103 CE 100U0F +20% 35.0V 85C...
Page 47 AVR325 harman/kardon Ref. Description Designator POWER SUPPLY PCB RCF 1R0 OHM +5% 250MI0W R102 1106757016 RCF 1R0 OHM +5% 250MI0W R103 1106757016 RCF 22R0 OHM +5% 250MI0W R104 3093938016 RCF 2K2 OHM +5% 250MI0W R105 2046946016 RCF 5K6 OHM +5% 250MI0W...
Page 48 AVR325 harman/kardon Ref. Description Designator MAIN PCB CC 100P0F +10% -10% 50.0V Y5P C114 2093665016 CC 100P0F +10% -10% 50.0V Y5P C115 2093665016 C116 CC 100P0F +10% -10% 50.0V Y5P 2093665016 CC 100P0F +10% -10% 50.0V Y5P C117 2093665016 CC 100P0F +10% -10% 50.0V Y5P...
Page 49 AVR325 harman/kardon Ref. Description Designator MAIN PCB CC 180P0F +10% -10% 50.0V Y5P C411 8043472071 CC 180P0F +10% -10% 50.0V Y5P C412 8043472071 C413 CE 10U0F +20% 50.0V 85C 2026888030 CE 10U0F +20% 50.0V 85C C414 2026888030 CE 10U0F +20% 50.0V 85C...
Page 50 AVR325 harman/kardon Ref. Description Designator MAIN PCB Semiconductors D-ZENER MTZJ 12.0V 500MI0W D204 5517804016 D-SLP 1N4148 100.0V 150E-3A D205 7043654016 D-SLP 1N4148 100.0V 150E-3A D206 7043654016 D207 D-ZENER 1N5231B 5.1V 500MI0W 2052696016 D301 D-SLP 1N4148 100.0V 150E-3A 7043654016 D302 D-SLP 1N4148 100.0V 150E-3A...
Page 51 AVR325 harman/kardon Ref. Description Designator MAIN PCB TR-SLPLF KTA1024 Y P 50MI0A -150V Q319 5513326056 TR-SLPLF KTA1024 Y P 50MI0A -150V Q320 5513326056 TR-SLPLF KTC3206 Y N 50MI0A 150V Q321 5513324056 TR-SLPLF KTC3206 Y N 50MI0A 150V Q322 5513324056 TR-SLPLF KTC3206 Y N 50MI0A 150V...
Page 52 AVR325 harman/kardon Ref. Description Designator MAIN PCB TR-SLPLF KTA1024 Y P 50MI0A -150V Q442 5513326056 TR-SLPSWA KRC107M N Q443 5517923056 TR-SLPLF KTD1302 B N 300MI0A 20V Q601 5513329056 TR-SLPLF KTD1302 B N 300MI0A 20V Q602 5513329056 TR-SLPLF KTA1266 Y P 150MI0A...
Page 53 AVR325 harman/kardon Ref. Description Designator MAIN PCB RCF 220R0 OHM +5% 250MI0W R320 2046945016 RCF 220R0 OHM +5% 250MI0W R321 2046945016 RCF 220R0 OHM +5% 250MI0W R322 2046945016 RCF 560R0 OHM +5% 250MI0W R323 6044156016 RCF 560R0 OHM +5% 250MI0W...
Page 54 AVR325 harman/kardon Ref. Description Designator MAIN PCB RCF 1K5 OHM +5% 250MI0W R386 4043563016 RCF 1K5 OHM +5% 250MI0W R387 4043563016 RCF 10R0 OHM +5% 250MI0W R388 3093936016 RCF 10R0 OHM +5% 250MI0W R389 3093936016 RCF 22K0 OHM +5% 250MI0W...
Page 55 AVR325 harman/kardon Ref. Description Designator MAIN PCB RCF 100R0 OHM +5% 250MI0W R458 5088295016 RCF 100R0 OHM +5% 250MI0W R459 5088295016 RCF 100R0 OHM +5% 250MI0W R460 5088295016 RCF 15R0 OHM +5% 250MI0W R461 3093937016 RCF 15R0 OHM +5% 250MI0W...
Page 56 AVR325 harman/kardon Ref. Description Designator MAIN PCB RCF 1K0 OHM +5% 250MI0W R603 1105964016 RCF 100K0 OHM +5% 250MI0W R604 3093951016 RCF 10K0 OHM +5% 250MI0W R605 3093948016 RCF 10K0 OHM +5% 250MI0W R606 3093948016 RCF 12K0 OHM +5% 250MI0W...
Page 57 AVR325 harman/kardon Ref. Description Designator MAIN PCB CONN 2.0MM 2 MA ST NAT LW2002P0200T 0 0 P812 55090070 CONN 2.0MM 2 MA ST NAT LW2002P0200T 0 0 P813 55090070 CONN 2.0MM 3 MA ST NAT LW2002P03 0 0 P814 55090080 CONN 2.0MM 2 MA ST NAT LW2002P0200T 0 0...
Page 58 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB CE 47U0F +20% 16.0V 85C 20251640 C129 2026783030 CE 10U0F +20% 16.0V 85C 1500213030 CCCFMIC 33P0F +5% -5% 50.0V NP0 C130 2050656091 CE 10U0F +20% 16.0V 85C C131 1500213030 CE 47U0F +20% 16.0V 85C 20251640...
Page 59 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB CCCFMIC 100P0F +5% -5% 50.0V NP0 C180 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0 C181 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0 C182 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0 C183 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0...
Page 60 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB CE 47U0F +20% 16.0V 85C 20251640 2026783030 CCCFMIC 100P0F +5% -5% 50.0V NP0 2050659091 CCCFMIC 100N0F +80% -20% 16.0V Y5V 2028804091 CCCFMIC 100N0F +80% -20% 16.0V Y5V 2028804091 CE 47U0F +20% 16.0V 85C 20251640 2026783030 CE 10U0F +20% 16.0V 85C...
Page 61 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB D-SLP 1SS355 35.0V 225MI0A 2049651085 D-ZENER UDZS 9.1B 9.1V 200MI0W 5550638085 D-ZENER UDZS 5.1 B 5.1V 200MI0W 5517771085 D-SLP 1SS355 35.0V 225MI0A 2049651085 D-SLP 1SS355 35.0V 225MI0A 2049651085 D-ZENER UDZS 9.1B 9.1V 200MI0W 5550638085 D-ZENER UDZS 9.1B 9.1V 200MI0W...
Page 62 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB TR-SSD DTA114YKA P 10K0 OHM 47K0 OHM 5513319092 TR-SLPSWA KTD1304 N 20V 300MI0A 5513871092 TR-SSD DTA114YKA P 10K0 OHM 47K0 OHM 5513319092 TR-SSD DTA114YKA P 10K0 OHM 47K0 OHM 5513319092 TR-SLPSWA KTD1304 N 20V 300MI0A...
Page 63 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB RMGCFMIC 100K0 OHM +5% 62MI5W R130 1013534091 RMGCFMIC 100R0 OHM +5% 62MI5W R131 1013474091 RMGCFMIC 2K0 OHM +5% 62MI5W R132 1013585091 RMGCFMIC 100R0 OHM +5% 62MI5W R133 1013474091 RMGCFMIC 12K0 OHM +5% 62MI5W...
Page 64 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB RMGCFMIC 100K0 OHM +5% 62MI5W R183 1013534091 RMGCFMIC 100R0 OHM +5% 62MI5W R184 1013474091 RMGCFMIC 100R0 OHM +5% 62MI5W R185 1013474091 RMGCFMIC 100K0 OHM +5% 62MI5W R186 1013534091 RMGCFMIC 100K0 OHM +5% 62MI5W...
Page 65 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB RMGCFMIC 2K2 OHM +5% 62MI5W 1013586091 RMGCFMIC 5K1 OHM +5% 62MI5W R240 1013595091 RMGCFMIC 100K0 OHM +5% 62MI5W R241 1013534091 RMGCFMIC 100R0 OHM +5% 62MI5W R242 1013474091 RMGCFMIC 100R0 OHM +5% 62MI5W R243...
Page 66 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB RMGCFMIC 2K0 OHM +5% 62MI5W R294 1013585091 RMGCFMIC 18K0 OHM +5% 62MI5W R295 1013508091 RMGCFMIC 2K2 OHM +5% 62MI5W R296 1013586091 RMGCFMIC 2K2 OHM +5% 62MI5W R298 1013586091 RMGCFMIC 470K0 OHM +5% 62MI5W...
Page 67 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB RMGCFMIC 470R0 OHM +5% 62MI5W R355 1013491091 RMGCFMIC 470R0 OHM +5% 62MI5W R356 1013491091 RMGCFMIC 470R0 OHM +5% 62MI5W R357 1013491091 RMGCFMIC 470R0 OHM +5% 62MI5W R358 1013491091 RMGCFMIC 470R0 OHM +5% 62MI5W...
Page 68 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB RMGCFMIC 5K1 OHM +5% 62MI5W 1013595091 RMGCFMIC 2K2 OHM +5% 62MI5W 1013586091 RMGCFMIC 5K1 OHM +5% 62MI5W 1013595091 RMGCFMIC 1K0 OHM +5% 62MI5W 1013577091 RMGCFMIC 470R0 OHM +5% 62MI5W 1013491091 RMGCFMIC 33K0 OHM +5% 62MI5W...
Page 69 AVR325 harman/kardon Ref. Description Designator PROCESSOR PCB CONN 2.0MM 3 MA ST NAT LW2002P03 0 0 55090080 CONN 2.0MM 4 MA ST NAT LW2002P04 0 0 55123310 CONN 2.0MM 6 MA ST NAT LW2002P06 0 0 55123330 CONN 2.0MM 10 MA ST NAT LW2002P10 0 0 55090050 CONN 2.0MM 15 MA ST NAT LW2002P15 0 0...
Page 70 AVR325 harman/kardon Ref. Description Designator VIDEO PCB CCCFMIC 100P0F +5% -5% 50.0V NP0 C156 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0 C157 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0 C158 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0 C159 2050659091 CCCFMIC 100P0F +5% -5% 50.0V NP0...
Page 71 AVR325 harman/kardon Ref. Description Designator VIDEO PCB BCL 0.5MM TIN ANNEALED COPPER 6.0MM 8MM F2100 C258 20330130 CE 220U0F +20% 10.0V 85C C289 2026908030 CE 100U0F +20% 16.0V 85C C291 2026902030 CCCFMIC 100N0F +80% -20% 16.0V Y5V C292 2028804091 CE 100U0F +20% 16.0V 85C...
Page 72 AVR325 harman/kardon Ref. Description Designator VIDEO PCB RMGCFMIC 75R0 OHM +5% 62MI5W R108 1013471091 RMGCFMIC 75R0 OHM +5% 62MI5W R109 1013471091 RMGCFMIC 68R0 OHM +5% 62MI5W R110 1013470091 RMGCFMIC 75R0 OHM +5% 62MI5W R111 1013471091 RMGCFMIC 10K0 OHM +5% 62MI5W...
Page 73 AVR325 harman/kardon Ref. Description Designator VIDEO PCB RMGCFMIC 2K2 OHM +5% 62MI5W R173 1013586091 RMGCFMIC 68R0 OHM +5% 62MI5W R174 1013470091 RMGCFMIC 0 OHM +0% 62MI5W R180 1032875091 RMGCFMIC 120K0 OHM +5% 62MI5W R186 1013536091 RMGCFMIC 0 OHM +0% 62MI5W...
Page 74 AVR325 harman/kardon Ref. Description Designator VIDEO PCB CON DIN SCKT MIX SOCKET RCA-118JP1S NJ93 55149520 CON DIN SCKT MIX SOCKET RCA-118JP1S NJ94 55149520 CON DIN SCKT MIX SOCKET RCA-118JP1S NJ95 55149520 CON DIN SCKT MIX SOCKET RCA-118JP1S NJ96 55149520 CON DIN SCKT MIX SOCKET RCA-118JP1S...
Page 75 AVR325 harman/kardon Ref. Description Designator KEY PCB RMGCFMIC 1K5 OHM +5% 62MI5W R203 1013582091 RMGCFMIC 2K2 OHM +5% 62MI5W R204 1013586091 RMGCFMIC 2K7 OHM +5% 62MI5W R205 1013588091 RMGCFMIC 3K3 OHM +5% 62MI5W R206 1013590091 RMGCFMIC 5K6 OHM +5% 62MI5W...
Page 76 AVR325 harman/kardon Ref. Description Designator KEY PCB AC PUN BRACKET BKT GROUND ET 0.5T AVR520 -- BK60 55176420 AC PUN SHIELD DIGITAL ET BK61 55182550 SWITACT VERTICAL TACTILE F/B 50MI0A 12.0V 500MI0OHM 1T 1P S200 55145270KX SWITACT VERTICAL TACTILE F/B 50MI0A 12.0V 500MI0OHM 1T 1P...
Page 77 AVR325 harman/kardon Ref. Description Designator FRONT PCB CCCFMIC 100N0F +80% -20% 16.0V Y5V C130 2028804091 CE 47U0F +20% 16.0V 85C 20251640 C131 2026783030 CE 47U0F +20% 16.0V 85C 20251640 C132 2026783030 CE 47U0F +20% 16.0V 85C 20251640 C133 2026783030 CE 47U0F +20% 16.0V 85C 20251640...
Page 78 D751 D-LEM CT-3SGTA GN RND 3.0 CL 60M0CD 55199400NR D752 D-LEM CT-3SGTA GN RND 3.0 CL 60M0CD 55199400NR D753 D-LEM CT-3SGTA GN RND 3.0 CL 60M0CD 55199400NR IC10 IC-MICROCONT CXP82860-374Q MAIN AVR325 55519410MS IC-LOGIC BU4094BF SHIFT REGISTER CMOS IC11 20718660MT...
Page 79 AVR325 harman/kardon Ref. Description Designator FRONT PCB IC-LOGIC BU4094BF SHIFT REGISTER CMOS IC12 20718660MT IC-LOGIC BU4094BF SHIFT REGISTER CMOS IC13 20718660MT IC-LOGIC BU4094BF SHIFT REGISTER CMOS IC14 20718660MT IC-LOGIC BU4051BCF MULTIPLEXER HCT IC15 55087180MT PHOTCOUP PC-17T1 PHOTOCOUPLER DIP4 IC16 55179630NR...
Page 80 AVR325 harman/kardon Ref. Description Designator FRONT PCB RMGCFMIC 4K7 OHM +5% 62MI5W R125 1013594091 RMGCFMIC 1K0 OHM +5% 62MI5W R128 1013577091 RMGCFMIC 1K0 OHM +5% 62MI5W R129 1013577091 RMGCFMIC 1K0 OHM +5% 62MI5W R130 1013577091 RMGCFMIC 4K7 OHM +5% 62MI5W...
Page 81 AVR325 harman/kardon Ref. Description Designator FRONT PCB RMGCFMIC 220R0 OHM +5% 62MI5W R311 1013483091 RMGCFMIC 470R0 OHM +5% 62MI5W R312 1013491091 RMGCFMIC 470R0 OHM +5% 62MI5W R313 1013491091 RMGCFMIC 100K0 OHM +5% 62MI5W R314 1013534091 RMGCFMIC 100K0 OHM +5% 62MI5W...
Page 82 CONN 2.0MM 8 MA ST NAT LW2002P08 0 0 55123340 CONN 1.25MM 31 FE R BK 00-6216-031-120-808 0 0 P103 55230490 AC PUN SHIELD FENCE TONE FN10 55177570 FFC CABLE 25MM 600MM 31 PIN FROM FRONT TO PROC PCB 55505880NR AVR325 COMPLETE TUNER PCB ASS'Y = part# 55615050...
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Page 100 AVR325 harman/kardon CXP82532/82540 CMOS 8-bit Single Chip Microcomputer Description The CXP82532/82540 microcomputer is composed 80 pin QFP (Plastic) of a CPU, ROM RAM, and I/O ports. These chips feature many other high-performance circuits in a single-chip CMOS design, including converter, serial interface, timer/counter, time-base timer, capture timer/counter, fluorescent display controller/driver, remote control receiver.
Page 101 AVR325 harman/kardon Block Diagram CXP82532/82540 A/D CONVERTER AN0 to AN7 PA0 to PA7 SPC700 CLOCK GEN./ CPU CORE SYSTEM CONTROL T0 to T7 PB0 to PB6 T8/S28 T15/S21 CONTROLLER/ 80 BYTES DRIVER S0 to S20 PC0 to PC7 REMOCON FIFO...
Page 102 AVR325 harman/kardon CXP82532/82540 Pin Assignment (Top View) 70 69 68 67 PE3/INT3 PE4/RMC T8/S28 T9/S27 PE7/TO T10/S26 PB0/CINT T11/S25 PB1/CS0 T12/S24 PB2/SCK0 T13/S23 T14/S22 PB3/SI0 T15/S21 PB4/SO0 PB5/SCK1 PB6/SI1 PB7/SO1 PC0/KR0 PC1/KR1 PC2/KR2 PF7/S15 PC3/KR3 PF6/S14 PC4/KR4 PF5/S13 PC5/KR5 PF4/S12...
Page 103 AVR325 harman/kardon CXP82532/82540 Pin Description Symbol Description (Port A) PA0/AN0 8-bit port; single bit Analog input to A/D converter. I/O/Analog input addressable. (8 pins) PA7/AN7 (8 pins) PB0/CINT I/O/Input External capture input for 16-bit timer/counter. PB1/CS0 I/O/Input Chip select input for serial interface (CH0).
Page 104 AVR325 harman/kardon CXP82532/82540 Symbol Description Provides voltage for FDP when on-chip resistor is selected under mask option. Connection for system clock oscillation crystal. When using an external EXTAL Input clock, input normal signal to EXTAL and reverse phase signal to the...
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Page 107 AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI Video Switch · 75Ω driver · Y/C mix Monolithic IC MM1501 Series Outline This IC extends the series of ICs for video/audio signal switching, with a 2-input 1-output single video switch, video signal/chroma signal 75Ω...
Page 108: Block Diagram
AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI Block Diagram MM1501 MM1502 MM1505 MM1506 MM1511 MM1512...
Page 109: Absolute Maximum Ratings
AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI Absolute Maximum Ratings (Ta=25°C) Item Symbol Rating Unit -40~+125 °C Storage temperature -30~+75 °C Operating temperature Power supply voltage When alone Allowable loss 350 ( When mounted on board Board size 100mm 100mm t=1.6...
Page 110 AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI MM1503 Item Symbol Measurement conditions Min. Typ. Max. Unit Refer to measurement procedures Consumption current No-signal, no-load 1.80 2.00 2.20 Input pin voltage No-signal, no-load 1.25 Output pin voltage Refer to measurement procedures -0.5...
Page 111 AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI MM1509 Item Symbol Measurement conditions Min. Typ. Max. Unit Refer to measurement procedures Consumption current Refer to measurement procedures µA Current consumption for PS Refer to measurement procedures...
Page 112 AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI MM1512 Item Symbol Measurement conditions Min. Typ. Max. Unit Refer to measurement procedures Consumption current No-signal, no-load 1.95 2.15 2.35 Y input pin voltage No-signal, no-load 1.80 2.00 2.20...
Page 113 AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI ·Measurement Procedures (MM1501 ~ MM1504) Connect a DC ammeter to V pin and measure. Hereafter, short Consumption current the ammeter to use. Input a 2.0V (1.0V for MM1502 and MM1504), 100kHz sine wave to SG1.
Page 114 AVR325 harman/kardon Video Switch · 75Ω driver · Y/C mix MM1501 MITSUMI · Measurement Procedures (MM1505 ~ MM1508) Connect a DC ammeter to V pin and measure. Hereafter, short Consumption current the ammeter to use. Input a 2.0V (1.0V for MM1506 and MM1508), 100kHz sine wave to SG1.
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Page 126 AVR325 harman/kardon 8-channel analog multiplexer / demultiplexer BU4051BC / BU4051BCF / BU4051BCFV The BU4051BC, BU4051BCF and BU4051BCFV are analog multiplexers / demultiplexers which use three-input digi- tal signals for control via an 8-channel analog switch. These products feature high on / off output voltage ratio and low crosstalk between analog switches.
Page 127 AVR325 harman/kardon 8-bit compatible shift / store register BU4094BC / BU4094BCF / BU4094BCFV The BU4094BC, BU4094BCF, and BU4094BCFV are shift / store registers, each consisting of an 8-bit register and an 8-bit latch. As the data in the shift register can be latched by an asynchronous strobe input, it is possible to hold the output in the data transfer mode.
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Page 146 AVR325 harman/kardon M54HCU04 M74HCU04 HEX INVERTER (SINGLE STAGE) HIGH SPEED = 5 ns (TYP.) AT V = 5 V LOW POWER DISSIPATION = 1 µA (MAX.) AT T = 25 C HIGH NOISE IMMUNITY = 10 % V (MIN.) OUTPUT DRIVE CAPABILITY...
Page 147 AVR325 harman/kardon AK4114 High Feature 192kHz 24bit Digital Audio Interface Transceiver GENERAL DESCRIPTION The AK4114 is a digital audio transceiver supporting 192kHz, 24bits. The channel status decoder supports both consumer and professional modes. The AK4114 can automatically detect a Non-PCM bit stream.
Page 148 AVR325 harman/kardon AVSS AVDD X'tal Clock Oscillator 8 to 3 Recovery Clock MCKO1 Generator MCKO2 Input Selector LRCK DAIF Audio BICK Decoder SDTO DAUX DVDD Error & Q-subcode CCLK DVSS AC-3/MPEG µP I/F STATUS buffer CDTO TVDD Detect Detect CDTI...
Page 149 AVR325 harman/kardon PIN/FUNCTION Pin Name Function IPS0 Input Channel Select 0 Pin in Parallel Mode Receiver Channel 4 Pin in Serial Mode (Internal biased pin) No Connect NC(AVSS) No internal bonding. This pin should be connected to AVSS. DIF0 Audio Data Interface Format 0 Pin in Parallel Mode...
Page 150 AVR325 harman/kardon PIN/FUNCTION (Continued) Pin Name Function Power-Down Mode Pin When “L”, the AK4114 is powered-down and reset. Master Clock Operation Mode 0 Pin in Parallel Mode CDTO Control Data Output Pin in Serial Mode, IIC= “L”. CAD1 Chip Address 1 Pin in Serial Mode, IIC= “H”.
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Harman Kardon AVR325 Service Manual

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SERVICE MANUAL

Troubleshooting

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Summary of Contents for Harman Kardon AVR325

Page 1: Service Manual

Page 11: Main Remote Control Functions

Page 14: Installation And Connections

Page 15: System And Power Connections

Page 17: Processor Reset

Page 108: Block Diagram

Page 109: Absolute Maximum Ratings

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