Arcam-AVR350-avr-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL v1.0 AVR350 SURROUND SOUND RECEIVER CONTENTS Page DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ADJUSTMENT POINTS DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 INSTRUMENT SET

2、UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 ALIGNMENT PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . . . . . . . . . . . 9-10 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-30 SCHEMATIC DI

4、AGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31-44 IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45-57 ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5、 . . . . . . . . . . . . . . . 58-110 EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112-117 RadioFans.CN 收音机爱 好者资料库 AVR3

6、50 SURROUND SOUND RECEIVER - 2 - 3 - AVR350 SURROUND SOUND RECEIVER DISASSEMBLY INSTRUCTIONS 7 6 5 1 3 2 4 9 8 8 2. 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

7、 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 to Figure No.1. Figure No.1 Figure No.2 RadioFans.CN 收音机爱 好者资料库 AVR350 SURROUND SOUND RECEIVER - 2 - 3 - AVR350 SURROUND SOUND RECEIVER ADJUSTMENT POINTS DIAGRAM AMP1 board RadioFans.CN 收音机爱 好者

8、资料库 AVR350 SURROUND SOUND RECEIVER - 4 - 5 - AVR350 SURROUND SOUND RECEIVER AMP2 board TUNER board OSCRF VT AVR350 SURROUND SOUND RECEIVER - 4 - 5 - AVR350 SURROUND SOUND RECEIVER VIDEO board AVR350 SURROUND SOUND RECEIVER - 6 - 7 - AVR350 SURROUND SOUND RECEIVER INSTRUMENT SETUP 1. FM MEASUREMENT F

9、ig. 1 Fig. 2 2. RDS MEASUREMENT Fig. 3 3. AM MEASUREMENT Fig. 4 FM SIGNAL GENERATOR ANTENNA TERMINAL OUTPUT TERMINAL DISTORTION ANALYZER DISTORTION ANALYZER AC VOLTMETER OSCILLOSCOPE AC VOLTMETER OR OSCILLOSCOPE AC VOLTMETER OR OSCILLOSCOPE OUTPUT TERMINAL OUTPUT TERMINAL L R ANTENNA TERMINAL ANTENN

10、A TERMINAL ANTENNA TERMINAL AM LOOP ANTENNA (Accessory) AM LOOP ANTENNA 60cm DIGITAL MILLIVOLT METER VT-J954 FM SIGNAL GENERATOR AM SIGNAL GENERATOR FM SIGNAL GENERATOR RDS GENERATOR FM STEREO GENERATOR P-901 DC MILLIVOLT METER UNIT UNIT UNIT UNIT ALIGNMENT PROCEDURES AMPLIFIER SECTION Idle Current:

11、 Volume at min value, at 8 ohm and 10 min burn in StepItemConnectionAdjustment Adjust for 1FL ChannelVoltmeter to P101 on AMP2 BoardVR10110mV2mV 2FR ChannelVoltmeter to P401 on AMP1 BoardVR40110mV2mV 3C ChannelVoltmeter to P201 on AMP2 BoardVR20110mV2mV 4SL ChannelVoltmeter to P301 on AMP2 Board VR3

12、016mV1.5mV 5SR ChannelVoltmeter to P501 on AMP1 Board VR5016mV1.5mV 6BSL ChannelVoltmeter to P701 on AMP1 Board VR7016mV1.5mV 7BSR ChannelVoltmeter to P601 on AMP1 Board VR6016mV1.5mV AVR350 SURROUND SOUND RECEIVER - 6 - 7 - AVR350 SURROUND SOUND RECEIVER FM/RDS SECTION - FM mono: 1kHz, 75kHz devi.,

13、 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 ohms to the all speaker terminals unless otherwise noted. ItemStep Connec- tion of instru- ment FM SG output Stereo modula- tor output Tuning frequency Output indic

14、ator Adjustment point Adjust forRemarks FM IF/RF 1 Fig.1 99.0MHz 1kHz 75kHz devi. 66dBf (60dB) 99.0MHz DC volt- meter L9410100mVFM MUTE/MODE switch: ON/AUTO Repeat the steps 1 to 3 until no further adjustment is neces- sary. 2 AC volt- meter IFT on the front end Maximum 3 Distortion analyzer L942Min

15、imum Stereo Distor- tion Fig.2 99.0MHz Ext. mod. 66dBf (60dB) Channel L or R 1kHz 99.0MHz Distortion analyzer IFT on the front end Minimum FM MUTE/MODE switch: ON/AUTO. Dont turn more than +/-180. Stereo Sepa- ration Fig.2 99.0MHz Ext. mod. 66dBf (60dB) Channel L or R 1kHz 99.0MHz Oscillo- scope R95

16、6 Maximum Separa- tion Repeat stereo distortion and stereo separation align- ment until THD at minimum and sepa- ration at maximum. Muting Level Fig.199.0MHz 22dB99.0MHz Oscillo- scope R941 Signal output RDSFig.3 99.0MHz Ext. mod. 66dBf (60dB) RDS 4% MOD 99.0MHz Decode the RDS Program Station. AM SE

17、CTION AM Modulation: 400Hz, 30% For UL Version StepAM SG outputTuning frequencyOutput indicatorAdjustment pointAdjust for 1530kHzDigital DC voltmeterQSC coil on RF block M9711.350.2V 2 600kHz 400Hz 30% mod. 60dB/M 600kHzAC voltmeterRF coil on RF block M971Maximum 3 600kHz 400Hz 30% mod. 60dB/M 990kH

18、zAC voltmeterL972Maximum For CE Version StepAM SG outputTuning frequencyOutput indicatorAdjustment pointAdjust for 1522kHz or 531kHzDigital DC voltmeterQSC coil on RF block M9711.350.2V (531kHz) 2 600kHz 400Hz 30% mod. 60dB/M 603kHzAC voltmeterRF coil on RF block M971Maximum 3 600kHz 400Hz 30% mod.

19、60dB/M 999kHzAC voltmeterL972Maximum AVR350 SURROUND SOUND RECEIVER - 8 - 9 - AVR350 SURROUND SOUND RECEIVER VIDEO BOARD SECTION 1 Required measurement equipment : 100KHz Scope, DVD player DVD test disc : TDV-540A 2 Connect the DVD Player into AVR300 composite Video IN; connect the component Video t

20、o 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 the component video Cr voltage to 600mV30mV

21、. AVR350 SURROUND SOUND RECEIVER - 8 - 9 - AVR350 SURROUND SOUND RECEIVER IMPORTANT NOTES 1. 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. When

22、 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. G

23、round-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 AVR300 to the computer. On AVR300, press the buttons RDS INFO and STORE at the same time. Then the front panel should display Program Req.:. Then pr

24、ess OK button. Or you can press RDS INFO and STORE for 3 seconds. Front panel will then display Program. The AVR300 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 t

25、he AVR300test.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. AVR350 SURROUND

26、SOUND RECEIVER - 10 - 5. Upgrade DSP software DSP code in Flash Rom AT29LV040A can be upgraded via RS232. Connect the AVR300 to the computer. On AVR300, press the buttons RDS INFO and FM Mute/Mono at the same time. Then the front panel should display Program Req.:. Then press OK button. Or you can p

27、ress RDS INFO and FM Mute/Mono for 3 sec- onds. Front panel will then display Program. The AVR300 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 the AVR300test.exe

28、and click the button Program to DSP. Select the appropriate COM Port and click the “Browse” to load the s28 file. Then click the button Program. Upon the upgrade process is completed, a pop window will be shown. Finally, use Dolby, DTS, PCM test discs to see if all decodings are ok. This ensure the

29、DSP has been upgraded successfully. AVR350 SURROUND SOUND RECEIVER - 11 - KEY PCB LED PCB AUDIO PCB HDMI PCB MAIN PCB MULTI PCB POWER PCB SW PCB PSU PCB RECT PCB PMAIN PCB AMP2 PCB AMP1 PCB TUNER PCB DSP PCB VIDEO PCB PHONE PCB VOL PCB COM PCB CON1 PCB CON2 PCB Toroidal Transformer RS232 PCB SP401 P

30、/N: 1681-7000-A WIRING DIAGRAM AVR350 SURROUND SOUND RECEIVER - 12 - 13 - AVR350 SURROUND SOUND RECEIVER AMP2 board component side PCB LAYOUT AVR350 SURROUND SOUND RECEIVER - 12 - 13 - AVR350 SURROUND SOUND RECEIVER AMP2 board copper side AVR350 SURROUND SOUND RECEIVER - 14 - 15 - AVR350 SURROUND SO

31、UND RECEIVER AUDIO board component side CON1 board component side CON1 board copper side SW board component side SW board copper side AVR350 SURROUND SOUND RECEIVER - 14 - 15 - AVR350 SURROUND SOUND RECEIVER AUDIO board copper side RECT board VOL board PHONE board AVR350 SURROUND SOUND RECEIVER - 16

32、 - 17 - AVR350 SURROUND SOUND RECEIVER COM board component sideCOM board copper side POWER board component sidePOWER board copper side LED board component side LED board copper side PSU board AVR350 SURROUND SOUND RECEIVER - 16 - 17 - AVR350 SURROUND SOUND RECEIVER CON2 board component side CON2 boa

33、rd copper side HDMI board component side HDMI board copper side AVR350 SURROUND SOUND RECEIVER - 18 - 19 - AVR350 SURROUND SOUND RECEIVER DSP board component side AVR350 SURROUND SOUND RECEIVER - 18 - 19 - AVR350 SURROUND SOUND RECEIVER DSP board copper side AVR350 SURROUND SOUND RECEIVER - 20 - 21

34、- AVR350 SURROUND SOUND RECEIVER MAIN board AVR350 SURROUND SOUND RECEIVER - 20 - 21 - AVR350 SURROUND SOUND RECEIVER TUNE board AVR350 SURROUND SOUND RECEIVER - 22 - 23 - AVR350 SURROUND SOUND RECEIVER PMAIN board component side AVR350 SURROUND SOUND RECEIVER - 22 - 23 - AVR350 SURROUND SOUND RECEI

35、VER PMAIN board copper side AVR350 SURROUND SOUND RECEIVER - 24 - AVR350 SURROUND SOUND RECEIVER - 25 - AMP1 board component side AMP1 board copper side AVR350 SURROUND SOUND RECEIVER - 24 - AVR350 SURROUND SOUND RECEIVER - 25 - RS232 board component side RS232 board copper side AVR350 SURROUND SOUN

36、D RECEIVER - 26 - AVR350 SURROUND SOUND RECEIVER - 27 - MUTI board component side AVR350 SURROUND SOUND RECEIVER - 26 - AVR350 SURROUND SOUND RECEIVER - 27 - MUTI board copper side AVR350 SURROUND SOUND RECEIVER - 28 - AVR350 SURROUND SOUND RECEIVER - 29 - VIDEO board component side AVR350 SURROUND

37、SOUND RECEIVER - 28 - AVR350 SURROUND SOUND RECEIVER - 29 - VIDEO board copper side AVR350 SURROUND SOUND RECEIVER - 30 - AVR350 SURROUND SOUND RECEIVER - 31 - KEY board AVR350 SURROUND SOUND RECEIVER - 30 - AVR350 SURROUND SOUND RECEIVER - 31 - SCHEMATIC DIAGRAM 12345678 A B C D 87654321 D C B A GP

38、E International Ltd. DWN.BY: BQ Yang APP.BY: MODEL: AVR350 DATE: 18/JUN/2004 DATE: ISSUE: A1 S-HQ VIDEO SCH SHEET 5 OF 14 XTAL 1 1 XTAL 2 2 XTAL 3 3 APC Filter 4 C GND 5 CHROMA input 6 V-SEP 7 Sync input 8 Sync output 9 AFC Filter 10 SYNC GND 11 32 fH VCO 12 VP output 13 HD output 14 SCP output 15 D

39、ig GND 16 CP / HP input 17 SYNC VCC 18 SW VCC 19 Y/G output 20 B-Y/B output 21 R-Y/R output 22 ADRS SW 23 SW GND 24 Y2 input 25 B-Y2 input 26 R-Y2 input 27 I2C GND 28 Y1 Input 29 B-Y1 input 30 R-Y1 input 31 Ys 32 SCL 33 SDA 34 DAC TEST 35 GND 36 Y output 37 DAC2 38 DAC1 39 DAC VCC 41 C VCC 42 UV/CbC

40、r SW 43 fsc output 44 1HDL CONT 45 SECAM CONT 46 B-Y/Cb output 47 R-Y/Cr Output 48 Y input 40 U813 TA1270BF R_Y Clam p Det. 1 R-Y to CCD 2 B-Y to CCD 3 R-Y AGC Det. 4 VCC 5 Filter Adj. 6 S.C.P In 7 B-Y AGC Det. 8 PLL Det. 9 Clock 10 Clock In 11 VSS 12 Vin1 13 VDD 14 Vin2 15 Vout2 16 Vob2 17 Vob1 18

41、Vout1 19 Vgg 20 GND 21 R-Y from CCD 22 B-Y from CCD 23 MODE SW1 24 MODE SW2 25 B-Y In 26 R-Y In 27 B-Y Clam p Det. 28 B-Y Out 29 R-Y Out 30 U822 TA8772AN G 1 2 3 4 VCC 5 6 7 8 U821BA7623F X803 4.433619MHz X804 3.57954MHz C959 12pF C960 12pF DGND DGND GND AGND AGND GND DGND DGND GND GND DGND AGND +9V

42、 AGND AGND AGNDAGND GND DGND R965 30KC962 2200pF C961 0.22u/50V SYMAIN2VU SCMAIN2VU C955 47u/16V C956 103 GND +5V C95710u/16VR960 75 C958 470u/10V R962 75 R961 75 R963 75 GNDGND C963 0.01uF +9V C966 2.2uF/50V C964 100nF +9V R967 3K C968 22nF C967 2.2u/50V SYNC SEP FILTER AFC FILTER R968 330R X805 B5

43、03F30 R969 5.1K R970 8.2K +9V C970 10nF C969 1000u/16V C952 47u/16V C950 10u/16V C949 10u/16V AGND AGND +5V C951 22u/16V R-Y/R1V B-Y/B1V Y/G1V R971 1K C974 100nF C975 100nF C976 100nF R973 1K O_SD O_CL C965 100nF GND AGND AGND AGND AGND AGND AGND +5V C978 10nF C977 1000u/16V Fsc Q842 A933 R984 100K

44、R978 1k R979 10K R982 27K R983 30K R980 47K R981 270k C918 100nF C919 100nF C979 100nF C980 100nF C985 100nF C986 100nF C987 100nF AGND +9V C984 10nF C983 47uF/16V R974 10k R975 1k C988 10uF/16V C989 100nF +5V C993 10nF C992 47uF/16V Q840 C1740 Q841 C1740 R977 1k R976 1k AGND AGND +5V +5V C990470nF

45、C991470nF C998470nF C997 470nF C994 1uF/16V C995 1uF/16V C996 1uF/16V AGND AGND AGND AGND BY/Cb BY/Cb RY/Cr RY/Cr C981 100nF GND RYout RYout BYout BYout R-Y/R1V GND B-Y/B1V Y/G1V 1 2 3 4 5 6 P803B PIN6 1 2 3 45 6 7 8 U819 TK15420M 1 2 3 45 6 7 8 U820 TK15420M R953 10K R946 100 R945 100 R948 10K R950

46、 300 R942 150 R951 300 R952 1K R954 300 R955 300 R956 1K R943 150 RV805 1K RV803 2K RV804 1K R957 10K R958 470 R959 100 R985 1K R944 75 AGND AGND GND C907 47u/16V C954 47u/16V C953 47u/16V -5V -5V +5V AGND C973104 C972104 C971104 WIMA C999 WIMA WIMA WIMA WIMA WIMA L815 100uH C839 100u/16V R990 510R

47、C943 33p C8001 15p L818 27uH C8002 10p R991 1K5 AGND C832 10nF R993 2K R994 10R R992 820 TO U805 PIN19 L814 100uH NF D804 220R R947 R972 1K GND Q9014 C114 Q9011 C114 R9018 1K GND +9V +5V 1N4148 D805 RGB from MCU RGB Other SYNC-OFFH LSYNC-ON 3K3 R966 RGB_8V R986 NF C8003 103 RGB _8V S-HQ VIEDO AVR350

48、 SURROUND SOUND RECEIVER - 32 - AVR350 SURROUND SOUND RECEIVER - 33 - HQ_VIDEO 1234 A B C D 4321 D C B A GPE International Ltd. DWN.BY: BQ Yang APP.BY: MODEL: AVR350 DATE:18/Jun/2004 DATE: ISSUE: A1 HQ_VIDEO SCH SHEET 6 OF 14 RED1 1 GREEN1 2 BLUE1 3 GND 4 GND 5 RED2 6 GREEN2 7 BLUE2 8 EN 9 SELECT 10

49、 -V 11 -V 12 BLUE_O 13 GREEN_O 14 RED_O 15 +V 16 U201 LT1675 RED1 1 GREEN1 2 BLUE1 3 GND 4 GND 5 RED2 6 GREEN2 7 BLUE2 8 EN 9 SELECT 10 -V 11 -V 12 BLUE_O 13 GREEN_O 14 RED_O 15 +V 16 U202 LT1675 Vin1 1 GND 2 Vin2 3 -V 4 SELECT 5 VOUT 6 EN 7 +V 8 U203 LT1675-1 R285 75 R286 75 R287 75 R288 75 R289 75 R290 75 R291 75 R292 75 R293 75 R295 75 R297 75 R299 75 C299 470U/16V Q299 C114 R280 4K7 C298 10u/16V C297 10u/16V C296 10u/16V C295 10u/16V C294 10u/16V C293 10u/16V C292 103 C2