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1、DiVAServiceManualAVR250 AV ReceiverIssue 1.0ARCAMARCAMBringing music & movies to lifeBringing music & movies to lifeRadioFans.CN 收音机爱 好者资料库SERVICE MANUALv1.0AVR250SURROUND SOUND RECEIVERCONTENTS PageDISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2、. . . . . 2ADJUSTMENT POINTS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5INSTRUMENT SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6ALIGNMENT PROCEDURES . . . . . . . . . . . . . . . . . . . . .
3、 . . . . . . . . . . . . . . . . . . . . . . . 6-8IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10PCB LA
4、YOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-28SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-40IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . .
5、. . . . . . . . . . . . . . . . . . . . . . . 41-50ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51-80EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81EXPLODED V
6、IEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82-84SERVICE PARTS ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 RadioFans.CN 收音机爱 好者资料库AVR250 SURROUND SOUND RECEIVER- 2 -DISASSEMBLY INSTRUCTIONS7651
7、3249882. Pull both sides of the TOP COVER slightly outwards 8 and tilt approx. 35 and then remove in the direction as indicated by the arrow 9 . Refer to Figure No.2.1. Remove machine screws M 4.0 x 6.0 ( 1 to 6 ) from the side panels. Remove tapping screw 3.0 x 8.5 ( 7 )from the back panel. Refer t
8、o Figure No.1.Figure No.1Figure No.2- 3 -AVR250 SURROUND SOUND RECEIVERADJUSTMENT POINTS DIAGRAMAMP1 boardAVR250 SURROUND SOUND RECEIVER- 4 -AMP2 boardTUNER boardOSCRFVT- 5 -AVR250 SURROUND SOUND RECEIVERVIDEO boardAVR250 SURROUND SOUND RECEIVER- 6 -INSTRUMENT SETUP1. FM MEASUREMENTFig. 1Fig. 22. RD
9、S MEASUREMENTFig. 33. AM MEASUREMENT Fig. 4FMSIGNALGENERATORANTENNATERMINALOUTPUTTERMINALDISTORTIONANALYZERDISTORTIONANALYZERACVOLTMETEROSCILLOSCOPEACVOLTMETEROROSCILLOSCOPEACVOLTMETEROROSCILLOSCOPEOUTPUTTERMINALOUTPUTTERMINALLRANTENNATERMINALANTENNATERMINALANTENNATERMINALAM LOOPANTENNA(Accessory)AM
10、 LOOPANTENNA60cmDIGITALMILLIVOLTMETERVT- J954FMSIGNALGENERATORAMSIGNALGENERATORFMSIGNALGENERATORRDSGENERATORFMSTEREOGENERATORP- 901DCMILLIVOLTMETERUNITUNITUNITUNITALIGNMENT PROCEDURESAMPLIFIER SECTIONIdle Current: Volume at min value, at 8 ohm and 10 min burn inStepItemConnectionAdjustment Adjust fo
11、r1FL ChannelVoltmeter to P101 on AMP2 BoardVR10110mV2mV2FR ChannelVoltmeter to P401 on AMP1 BoardVR40110mV2mV3C ChannelVoltmeter to P201 on AMP2 BoardVR20110mV2mV4SL ChannelVoltmeter to P301 on AMP2 Board VR3016mV1.5mV5SR ChannelVoltmeter to P501 on AMP1 Board VR5016mV1.5mV6BSL ChannelVoltmeter to P
12、701 on AMP1 Board VR7016mV1.5mV7BSR ChannelVoltmeter to P601 on AMP1 Board VR6016mV1.5mV- 7 -AVR250 SURROUND SOUND RECEIVERFM/RDS SECTION- FM mono: 1kHz, 75kHz devi., 60dB/V- FM stereo: 1kHz, 67.5kHz devi., 60dB/V Pilot signal 19kHz 7.5kHz devi.OUTPUTS- Connect the non- inductive type resistor of 8
13、ohms to the all speaker terminals unless otherwise noted. ItemStepConnec-tion of instru-mentFM SG outputStereo modula-tor outputTuning frequencyOutput indicatorAdjustment pointAdjust forRemarksFM IF/RF1Fig.199.0MHz 1kHz 75kHz devi. 66dBf (60dB)99.0MHzDC volt-meterL9410100mVFM MUTE/MODE switch: ON/AU
14、TO Repeat the steps 1 to 3 until no further adjustment is neces-sary.2AC volt-meterIFT on the front endMaximum3Distortion analyzerL942MinimumStereo Distor-tionFig.299.0MHz Ext. mod. 66dBf (60dB)Channel L or R 1kHz99.0MHzDistortion analyzerIFT on the front endMinimumFM MUTE/MODE switch: ON/AUTO. Dont
15、 turn more than +/- 180.Stereo Sepa-rationFig.299.0MHz Ext. mod. 66dBf (60dB)Channel L or R 1kHz99.0MHzOscillo-scopeR956Maximum Separa-tionRepeat stereo distortion and stereo separation align-ment until THD at minimum and sepa-ration at maximum.Muting LevelFig.199.0MHz 22dB99.0MHzOscillo-scopeR941Si
16、gnal outputRDSFig.399.0MHz Ext. mod. 66dBf (60dB) RDS 4% MOD99.0MHzDecode the RDS Program Station.AM SECTIONAM Modulation: 400Hz, 30%For UL VersionStepAM SG outputTuning frequencyOutput indicatorAdjustment pointAdjust for1530kHzDigital DC voltmeterQSC coil on RF block M9711.350.2V2600kHz400Hz 30% mo
17、d. 60dB/M600kHzAC voltmeterRF coil on RF block M971Maximum3600kHz400Hz 30% mod. 60dB/M990kHzAC voltmeterL972MaximumFor CE VersionStepAM SG outputTuning frequencyOutput indicatorAdjustment pointAdjust for1522kHz or 531kHzDigital DC voltmeterQSC coil on RF block M9711.350.2V (531kHz)2600kHz400Hz 30% m
18、od. 60dB/M603kHzAC voltmeterRF coil on RF block M971Maximum3600kHz400Hz 30% mod. 60dB/M999kHzAC voltmeterL972MaximumAVR250 SURROUND SOUND RECEIVER- 8 -VIDEO BOARD SECTION1 Required measurement equipment : 100KHz Scope, DVD player DVD test disc : TDV- 540A 2 Connect the DVD Player into AVR250 composi
19、te Video IN; connect the component Video to TV (or connect 75 ohm loading resistor). 3 Play TDV- 540A T2- C1 (75% colour- bar UL NTSC / CE PAL).4 Turn RV803 to adjust the component video Y voltage to 100075mV.5 Turn RV804 to adjust the component video Cb voltage to 550mV30mV.6 Turn RV805 to adjust t
20、he component video Cr voltage to 600mV30mV.- 9 -AVR250 SURROUND SOUND RECEIVERIMPORTANT NOTES1. Show the software version Press “DVD” and “SAT” at the same time.2. Light up all the icon on the VFL Press “CD” and “TAPE” at the same time.3. Reset Press “FM MUTE” and “PRESET/TUNE” at the same time. Whe
21、n VFL shows “Resetl1 REQ?”, press “OK” button. For CE version, the 9K/10KHz switch should be set to 9KHz and the voltage should be 230V AC. For UL version, the 9K/10KHz switch should be set to 10KHz and the voltage should be 115V AC. The 4/8 ohm switch should be set in 4ohm position in all version.
22、Ground- SW: GROUND.4. Upgrade MCU software The software of main CPU P89C669 can be upgraded via RS232. The programming steps are as follows: Connect the AVR250 to the computer. On AVR250, press the buttons RDS INFO and STORE at the same time. Then the front panel should display Program Req.:. Then p
23、ress OK button. Or you can press RDS INFO and STORE for 3 seconds. Front panel will then display Program. The AVR250 is ready to be programmed. Note: when the program process is stopped unexpectedly, the program in IC may be erased. You can press these two buttons for 3 seconds for programming. Run
24、the AVR250test.exe and click the button Program to CPU. Select the appropriate COM Port and click the “Browse” to load the hex file. Then click the button Program. Upon the upgrade process is completed, a pop window will be shown. Note: Please try it again if there is error response. AVR250 SURROUND
25、 SOUND RECEIVER- 10 -WIRING DIAGRAMPOWER PCBSW PCBPSU PCBRECT PCBPMAIN PCBAMP2 PCBAMP1 PCBMULTI PCBMAIN PCBAUDIO PCBTUNER PCBDSP PCBVIDEO PCBKEY PCBPHONE PCBVOL PCBLED PCBCOM PCBCON1 PCBCON2 PCBToroidalTransformerRS232 PCBSP401P/N: 1681-7000-A- 11 -AVR250 SURROUND SOUND RECEIVERKEY boardPCB LAYOUTAV
26、R250 SURROUND SOUND RECEIVER- 12 -AMP2 boardcomponent side- 13 -AVR250 SURROUND SOUND RECEIVERAMP2 boardcopper sideAVR250 SURROUND SOUND RECEIVER- 14 -AUDIO board component sideCON1 board component sideCON1 board copper sideSW board component sideSW board copper side- 15 -AVR250 SURROUND SOUND RECEI
27、VERAUDIO board copper sideVOL boardPHONE boardAVR250 SURROUND SOUND RECEIVER- 16 -COM board component sideCOM board copper sidePOWER board component sidePOWER board copper sideLED board component sideLED board copper sideRECT board component sideRECT board copper side- 17 -AVR250 SURROUND SOUND RECE
28、IVERCON2 board component sideCON2 board copper sidePSU boardAVR250 SURROUND SOUND RECEIVER- 18 -DSP board component side- 19 -AVR250 SURROUND SOUND RECEIVERDSP board copper sideAVR250 SURROUND SOUND RECEIVER- 20 -MAIN board- 21 -AVR250 SURROUND SOUND RECEIVERTUNE boardAVR250 SURROUND SOUND RECEIVER-
29、 25 -MUTI board copper sideAVR250 SURROUND SOUND RECEIVER- 26 -VIDEO board component sideAVR250 SURROUND SOUND RECEIVER- 22 -PMAIN board component sidePMAIN board copper sideAVR250 SURROUND SOUND RECEIVER- 23 -AMP1 board component sideAMP1 board copper sideAVR250 SURROUND SOUND RECEIVER- 24 -MUTI bo
30、ard component sideAVR250 SURROUND SOUND RECEIVER- 27 -VIDEO board copper sideAVR250 SURROUND SOUND RECEIVER- 28 -RS232 board component sideRS232 board copper sideAVR250 SURROUND SOUND RECEIVER- 29 -TUNERSCHEMATIC DIAGRAMAVR250 SURROUND SOUND RECEIVER- 30 -OSDSV804AVCR1INSV805AVCR2 INSV806AVCR1 OUTSV
31、807AVCR2 OUTMONITORSV808AARCAM Sound & Vision.DWN.BY: Xiao XieAPP.BY:MODEL: AVR250DATE:11/JUN/2004DATE:ISSUE: AOSD SCHSHEET 4 OF 13C87610u/16VC874470u/10VC87310u/16VC872470u/10VC87110u/16VC870470u/10VC8692.2u/50VC8682.2u/50VC8672.2u/50VC8662.2u/50VR87082R87182R87282R87382GNDSV801ADVD INSV802ASAT INS
32、V803AAV INC8652.2u/50VC8642.2u/50VC8632.2u/50VC8622.2u/50VC8612.2u/50VC8602.2u/50VR86482R86582R86682R86782R86882R86982GNDG1234VCC5678U807BA7623FG1234VCC5678U811BA7623FG1234VCC5678U806BA7623FMout1GND2IN53GND4IN45CTLE6IN37CTLD8CTLC9Vout210CTLB11IN212Vcc13Vout114CTLA15IN116U809BA7625Mout1GND2IN53GND4IN
33、45CTLE6IN37CTLD8CTLC9Vout210CTLB11IN212Vcc13Vout114CTLA15IN116U818BA7625Mout1GND2IN53GND4IN45CTLE6IN37CTLD8CTLC9Vout210CTLB11IN212Vcc13Vout114CTLA15IN116U808BA7625Mout1GND2IN53GND4IN45CTLE6IN37CTLD8CTLC9Vout210CTLB11IN212Vcc13Vout114CTLA15IN116U812BA7625VSS1X1_IN2X1_OUT3HSYNC4X2_IN5X2_OUT6VSYINC7CS8
34、SIN9SCLK10SECAM1152512N/P133.5814RST15CV_OUT16VDD217CV_IN18CVCR19SYNC20SEPC21VSS22PD_OUT23AMT24AMP_O25FC26VCO_I27VCO_O28SYNCDET29VDD30U810LC74763AX80114.318MX80217.734MC80122PC80222PC80322PC80422PC80522PC80647PC80747PC80847PC8091u/50VC810100u/16VC811100u/16VC887103C88647PC814474R8021KR8031KR8041KR80
35、51KR8061KR8071KR8081KR8091KR810100KR9161KR9193K3R8134K7R814220R815820KR8161K5R8176K8R818120R8191KR82047KR8212K7Q801C1740C8120.47u/50VC8131200PC820682C8151u/50VC816223C817 22PD8011N4148C8180.47u/50VSYNL8012.2uHC81930PAGNDYYYYYCCCCCCCCYYYQ803D1468Q805D1468R82275R82375R82475R82575R82675R82775GNDVA802BS
36、AT_INVA801BDVD_INGNDGNDVA804BVCR1_INVA803BAV_INGNDGNDVA806BVCR1_OUTVA805BVCR2_INGNDGNDVA808BMONVA807BVCR2_OUTGNDGNDC821103C822103C823103C824103C8250.47u/50VC8271000u/6.3VC920100u/16VC82810u/16VC82910u/16VC830103C831103C833103C834103C835103C836103C837681C840103R831330L802100uHL803100uHL804100uHL80510
37、0uHO_SDO_CLMout1GND2IN53GND4IN45CTLE6IN37CTLD8CTLC9Vout210CTLB11IN212Vcc13Vout114CTLA15IN116U801BA7625C8842.2u/50VC8832.2u/50VC8822.2u/50VC8812.2u/50VC8802.2u/50VC879470u/10VC934470u/10VC8771000u/10VR87482R87582R87682R87782R87882R87975R93275R88175Q806D1468ZV3ZV1ZV2GND12345678910P802P10GNDO_CSO_CLKO_
38、DATA+9VV_MUTEProg-DETZV1ZV2ZV3ZV4ZV5GNDQ809A933Q810A933C842223C843223C8442.2u/50VC84510u/16VR83833KR9372K2R84075R8414K7D8021N4148D8031N4148Yout2VZV4ZV5GNDR84275R84375GNDR8463KV_DIREQ812A933Q813A933C848223C851223C8502.2u/50VC8492u2/16VR84833KR8392K2R8490R85010KD8071N4148D8081N4148GND-5VR856560+5VGNDC
39、T_CCT_ACT_ECT_DCT_BGNDGNDGNDGNDCT_ACT_BCT_CCT_DCT_ECT_BCT_CCT_ACT_DCT_EGNDGNDCT_ECT_DCT_CCT_BCT_AR863150BIAS1VRT2VDD13TESTI14VSS25VRB6YCIN7TEST8KILLER9TESTI210VDD311TEST212VDD213TESTI314SCL15SDA16MODE117TESTOUT18FSC19VDD420VSS421FIL22PD23VB224YOUT25VSS126COUT27VB128U805TC90A69DGNDL806100uHAGNDAGNDGN
40、D_1GNDV_MUO_CLKO_DATAO_CSDGNDG1234VCC5678U815BA7623FGNDC891103C890103C893103C894103C896103C89747u/16VC89847u/16VC94347u/16VC94747u/16VGNDGNDGNDGNDGNDC9022.2u/50VC9032.2u/50VC9042.2u/50VC9052.2u/50VC9062.2u/50VR88375GNDGNDV_DIRE12345678910P801A PIN10TO C_VIDEO BOARDC909103+5V+5V+5V+5VGNDGNDAGNDAGND+5
41、V+5VGNDAGNDAGNDAGND+5VGND+5VGND+5VAGNDDGNDDGND+5V+5V+5V+5VC935470u/10VR93375GNDGND+5VG1234VCC5678U814BA7623FC913103C92710u/16VR92475C928470u/10VR92375GNDGND+5VR93575R93475YCMIXG1234VCC5678U817BA7623FC90847u/16VC944103GNDGND+5VC878470u/10VR92175R92275GNDC8532.2u/50VC8522.2u/50VC8542.2u/50VG1234VCC567
42、8U816BA7623FC912103C929470u/10VR92875GNDGND+5VR9290GNDMout1GND2IN53GND4IN45CTLE6IN37CTLD8CTLC9Vout210CTLB11IN212Vcc13Vout114CTLA15IN116U803BA7625C8562.2u/50VC8552.2u/50VC892103C90047u/16VGND+5VC937103C94547u/16VGND+5VC911103GND+5VGNDC933470u/10VR93075R93175GND12P801ZONE2_OGNDMout1GND2IN53GND4IN45CTL
43、E6IN37CTLD8CTLC9Vout210CTLB11IN212Vcc13Vout114CTLA15IN116U804BA7625C8582.2u/50VC8572.2u/50VC8592.2u/50VC938103C94647u/16VGND+5VR92575R92675GNDGNDC9232.2u/50VGNDGNDV-MUC94147u/16VC910103GND+5VGNDGNDGNDV_DIREGNDGNDGNDQ835C114R9171KR91210KR91110KGND+5VGNDGND+5VNANDQ829C1740R903820RR904820RC91522pFL8082
44、7uHC91412pFR8281.2KR89612KR8296.8KC89947u/16VQ828C1740R899560RR900560RR8891.2KR894560Q825A933Q826C1740Q827A933R892100RR890820RR897220R 1/4W+5VAGND+10VL812100uHC930100u/16VC901103GNDQ830C1740R834820RR835820RC91722pFL80927uHC91612pFR8321.2KR83612KR8336.8KQ831C1740R901560RR902560RR8911.2KR8951K2Q832A93
45、3Q833C1740Q834A933R893100RR905820RR898220R 1/4WAGND+10VL813100uHC826100u/16VC940103GNDC921103C924470u/10VR93875R93975AGNDC87510u/16VR94033R94175AGNDCS OP1C VID IP2VS OP3GND4BURST OP5Rset6OE OP7Vcc8U802LM1881RV8012K +5VR918680KC922103GNDGNDC925103C939103GNDQ822C114Q823C114R9141KR94910KGND+5V+5VGNDQ82
46、4C114R8451KGNDQ839C114Q837C114R9151KR91010KR90710KGND+9V+5VGNDQ838C114R90910KR9133KR8523KC9321000u+5VPAL-DETFscSCMAIN2VUSYMAIN2VUL810100uHL811100uHV_DIREQ804D1468GNDQ802D1468GNDQ821D1468GNDR8843KR8863KR8873KR8883KCTLAVIDEO OUT01VIDEO(OSD) (IN3)VIDEO DIRECT (IN4)CTLBCTLAVIDEO OUT000111YUV (IN1)S_VIDE
47、O (IN3)VIDEO (IN4)CTLECTLAS_VIDEO OUT0011S_VIDEO DIRECT (IN1,IN4)S_VIDEO OSD (IN2,IN5)12345678910111213141516P803P16GND-5VProg-detR9010100C9482.2u/50VWIMAWIMAWIMAWIMAWIMAWIMAWIMAWIMAC838470u/16VL807100uH+5VR85133321U823ATK15420R85810KR8612KR8604K7R8621KAGNDAGNDR987270RL81727uHC84622pC84722pR9881KAGN
48、DAGNDAGNDR989100RYUVDETR837150RR8303K9R8011KAGNDAGND84U823CTK15420-5V+5VC885104C895104GNDCTLE0010S-VIDEO to VIDEO (IN5)V-MU12KR801412KR8015-5VYUVDETYUV IN H/Other LYUVDETQ910D1468R8117K5RGB_8VGNDSDETQ9012D1468RGB-8VR90167K5SDETSDETSYC2VV-MU form MCUCVBS1VSDETZ2VUSYC2VV_MUTESDETYUVDETRGB from MCUCVBS
49、1VYout2VPAL-DETQ836C114Z2UVQ9013C114R90157K5GNDR901415KV_DIRER9011NF10VL8193.9uHL816100uHD8101N4148D8111N4148R901212KQ8431468AGNDR90134K7AVR250 SURROUND SOUND RECEIVER- 31 -MULTIARCAM Sound & Vision.DWN.BY: Xiao XieAPP.BY:MODEL: AVR250DATE: 11/JUN/2004DATE:ISSUE: AMULTI SCHSHEET 2 OF 13C57847u/16VR4
50、0933CON12345678910111213141516P402AFROM MAIN BOARD P402A12345678910111213141516P403AFROM MAIN BOARD P403AR4025K1R4065K1R40512KR40811KR4075K1R4015K1C414220u/16VC413220u/16VC402220u/16VC405220u/16VC408220u/16VC401220u/16VR4105K1R4115K1BSMUCMUFMUSMUC42010u/16VC430103C421104+3.3VDC422104R41622KR4152KC43
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