Pioneer-VSXC300-avr-sm 电路图 维修手册.pdf

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1、PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singap

2、ore 159936 ? ? ? ? ? ? PIONEER CORPORATION 2001c ORDER NO. Type Model Power RequirementRemarks VSX-C300VSX-C300-S HYXJIAC220-230V HVXJIAC230V RRV2506 1. SAFETY INFORMATION.2 2. EXPLODED VIEWS AND PARTS LIST.3 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM.8 4. PCB CONNECTION DIAGRAM . 32 5. PCB PARTS LIST.4

3、6 6. ADJUSTMENT.50 CONTENTS 7. GENERAL INFORMATION . 51 7.1 DIAGNOSIS.51 7.1.1 Test Mode.51 7.1.2 Protection of the Amplifier Line . 52 7.1.3 Operation of the Fan-Control Line.53 7.1.4 Specifications of Speaker Detection.54 7.1.5 Timing Chart.55 7.2 PARTS.56 7.2.1 IC . 56 7.2.2 DISPLAY.62 8. PANEL F

4、ACILITIES AND SPECIFICATIONS.64 T ZZR AUG. 2001 Printed in Japan THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-C300 VSX-C300-S STANDBY PHONESVIDEOAUDIODIGITAL IN FRONT INPUT INPUT SIGNAL DIGITAL2DIGITAL2PROLOGICDTSMPEG VIRTUAL PHONES SURR.STE

5、REO AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-C300 DVDTV/SATVCRFRONTTUNER MASTER VOLUME DOWNUP ? MULTI ch LR OFFON RadioFans.CN 收音机爱 好者资料库 2 VSX-C300, VSX-C300-S 1. SAFETY INFORMATION This service manual is intended for qualified service technicians ; it is not meant for the casual do-it- yourselfer. Q

6、ualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you a

7、re not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of Californ

8、ia to cause cancer, birth defects or other reproductive harm. Health and LED: Every other letter of the alphabets is displayed FL: IJKLMNOP displayed; and LED: Every other letter of the alphabets is displayed highlighted Normal display . 4. Rear-and-center-relay switch 2 key Each time the remote-con

9、trol code is received, the rear-and-center relay is toggled on or off. 5. DOLBY Pro Logic mode 3 key Distance setting for the front and center speakers: 10 feet Distance setting for the rear speaker: 5 feet STANDARD mode Speaker setting: All high volume, SW ON All settings other than the above will

10、be returned to the factory- preset values. 6. FAN ON/OFF switch 4 key The fan is turned on or off and rotates as follows: Low speed High speed Off . 7. Master volume switch 5 key The master volume is switched between minus infinity and 0 dB, and each trim is 0 dB. When the remote-control code is rec

11、eived for the first time, the master volume is set to minus infinity. 8. 9k/10k switch 6 key For the models HL, SB and SP only, when the $A55F+$A505 code is received, this switches between 9k and 10k. 9. Thermistor A/D value, time display 7 key When the remote-control code is received, the A/D value

12、 (0-255) of the thermistor is displayed on the FL display. Time is displayed until 60:00, and then stops. While the A/D value and time are displayed, if the remote-control code is received again, the display will return to the normal display. Time counting will not stop. 10. Speaker auto-detection c

13、heck 8 key When the remote-control code is received, automatic detection of the speaker starts, and the result will be displayed for 5 seconds, as C:_SW:_, where indicates connected, and indicates that no speaker is connected. 11. Analog inputs check 9 key When the remote-control code is received, f

14、orced analog inputs and 2-channel stereo mode are set for all functions. Speaker setting: All high volume, SW ON When this mode is entered, SJG:ANA will be displayed for 5 seconds. 12. STBY mode 0 key STBY mode is entered when the remote-control code is received. 52 VSX-C300, VSX-C300-S 7.1.2 Protec

15、tion of the Amplifier Line 1. Detection of abnormalities in DC circuits This detection has priority over the overload detection and abnormality detection for the fan and thermistor. If an abnormality has been detected, AMUTE is on, RELAY is off, and the AMP ERR display is flashing. Does the abnormal

16、ity continue for 5 seconds or more? Power is turned off. Yes The program restarts from the beginning. No (recovery) 2. Detection of overload This detection has priority over the abnormality detection of the fan and thermistor. If an abnormality has been detected, AMUTE is on, RELAY is off, and the O

17、VERLOAD display is flashing. Does the abnormality continue for 5 seconds or more? Power is turned off. Yes Power is turned off even if the unit has achieved recovery. No (recovery) While the unit is recovering from the abnormality, the OVERLOAD display continues flashing. 53 VSX-C300, VSX-C300-S 7.1

18、.3 Operation of the Fan-Control Line 1. Detection of the heat sink The detection is carried out every other second by taking in the voltage of the thermistor at A/D (PORT 31). 2. According to the temperature detected, the following operation will be executed: THRMO DCT Set voltage of A/D FAN STARTFA

19、N MAXSP RELAY AMUTEDisplay 0 to 0.1V 5LLLLTHDCT NG flashes for 5 seconds. 0.1V to 2.4V5 to 122(60C)LLHH 2.6V to 2.8V(70C)134 HLHH 2.8V to 3.4V(75C)145 LHHH 3.4V to 4.1V(90C)174 LHHHHEAT UP flashes for 5 seconds at 20-sec intervals. 4.1V (115C)210 LHLLOVERHEAT flashes. 31 pin15 pin25 pin64,66,67 pin1

20、9 pin If you wish to switch FAN START from H to L and FAN MAX from L to H, first set FAN START to L, then after 100 s, set FAN MAX to H. While OVERHEAT is flashing, only the POWER key is functional. 3. FAN operation Once the fan starts rotating, it continues to rotate at the same speed until the tem

21、perature falls to 65C. Once the fan starts rotating, it continues to rotate for at least 20 seconds even after the temperature falls to the above-mentioned level. 4. Detection of abnormalities in the fan If any abnormality is detected in the fan 5 seconds after it starts rotating at high speed, and

22、if H (abnormal) is indicated for the FANDCT connector, FAN STOP is displayed for 5 seconds, then the power is turned off. While FAN STOP is displayed, AMUTE is on, and RELAY is off. While FAN STOP is displayed, only the POWER key is functional. While the fan is rotating at low speed, abnormality det

23、ection is not carried out. 5. Abnormality in the thermistor If an abnormality (A/D voltage: 0.1 V or less) is detected in the thermistor, THDCT NG is displayed for 5 seconds, then the power is turned off. FAN Driver Q404 2SC2712(GRBL) Q405 DTA124EK Q402 DTA124EK R420 Q403 2SC2712(GRBL) Q406 DTA124EK

24、 1SS355 1SS355 1SS355 FAN Drive 5V SW DCT 12V V+12 +6V -11.6V IC4201 PDG264A CN305 CN306 TERMO DTC V+5 FAN+ FAN- FAN STOP 54 VSX-C300, VSX-C300-S Center SPSub-wooferFront SPCenter SPSurround SPSubwoofer ConnectedConnectedLowLowLowON ConnectedNot connectedHighLowLowOFF Not connectedConnectedLowNot co

25、nnectedLowON Not connectedNot connectedHighNot connectedLowOFF 7.1.4 Specifications of Speaker Detection 1. Purposes Whether the speakers are connected or not is automatically detected, and settings appropriate for the detected speakers are made to allow you to easily play surround-sound without mak

26、ing cumbersome speaker settings. 2. Method of detecting speakers Whether a center speaker and/or subwoofer is connected or not is detected 600 ms after the power is turned on. The microcomputer sends a detection signal and after 10 ms will read the logic of the responding signal to judge whether the

27、 speaker is connected or not. The response signal will be read at A/D. A voltage of 3.5 V or more is judged as no speaker connected. The response signals at A/D are read every 2 ms, and if the same results (less or more than 3.5 V) are obtained, the detection result is considered correct. If a diffe

28、rent result is obtained for the second detection, a third detection is carried out, and the two results that agree will outvote the other. If detection fails three times, then it is judged that no center speaker is connected. The logic of the signal from the phono jack with a switch is read by the m

29、icrocomputer to judge whether the speaker is connected or not. The signals are read every 1 ms, and if the same results are obtained, the detection result is considered correct. If a different result is obtained for the second detection, a third detection is carried out, and the two results that agr

30、ee will outvote the other. If detection fails three times, then it is judged that no subwoofer is connected. 3. Speaker settings According to the results of the detection, speaker settings are made as follows: Results of the DetectionsSpeaker Settings 4. Users settings In Setup mode, more detailed s

31、peaker settings are available. Once the users settings are made, those settings have priority. However, if the configuration of connected speakers has changed, then the detection results become valid and have priority over the users settings until new users settings are made. 5. Detection circuit fo

32、r the center speaker mute More than 100 k POWER AMP Center Detection Check signal from U-COM Detection signal to U-COM Mute About 8 55 VSX-C300, VSX-C300-S 7.1.5 Timing Chart AC relay (UCOM port) A. MUTE (UCOM port) FL, LED control Function SW (TC9164) Speaker detection Video (NJM2279) Tuner (built-

33、in model) (LC72131) E-VOL (M62446FP) DSP UCOM (PD5681A) SP relay Overload DC abnormality detection FAN control H (ON) 0200400 0200400(msec) 600100018002800360048005200 (msec) H (ON)L or H Control start Detection Full open Control start Control start Control start Reset Last data Last data Last data

34、Last data Last data ON Last data Mute Dummy data Mute OFF AC relay (UCOM port) A. MUTE (UCOM port) Function SW (TC9164) Video (NJM2279) Tuner mute E-VOL (M62446FP) DSP UCOM (PD5681A) Relay (UCOM port) HL L Full open Reset Mute ON Mute OFF Timing Chart of Power ON Initial Timing Chart of Power OFF In

35、itial 56 VSX-C300, VSX-C300-S 1G2G1/A1 2G1G0/A0 3NCNC 4ACINPE0/EC0/INT0 5RDSDTPE1/EC1/INT1 6RDS CKPE2/INT2 7SW DCTPE3/INT3/NMI 8RMCPE4/RMC 9STEREOPE5 10TMUTEPE6/PWM 11PLL CEPE7/TO/ADJ 12SP CONTPC0/KR0 13TUNEDPC1/KR1 14PLL DOPC2/KR2 15FAN STARTPC3/KR3 16FAN DCTPC4/KR4 17VENC_APC5/KR5 18VENC_BPC6/KR6

36、19A.MUTEPC7/KR7 20DSPM_CS2PB0/CINT 21DSPM_CS1PB1/CS0 22DSPM_CKPB2/SCK0 23DSPM_SIPB3/SI0 24DSPM_SOPB4/SO0 25FAN MAXPB5/SCK1 26ST_EVRPB6/SI1 27DSPM_RSTPB7/SO1 28AVREF 29HP DCTPA1/AN0 30CENTER DCTPA1/AN1 31THRMO DCTPA2/AN2 32AMP_DCPA3/AN3 33AMP_OLPA4/AN4 34VER_1PA5/AN5 35KEYIN2PA6/AN6 36KEYIN1PA7/AN7 3

37、7AVSS 38RST 39EXTAL 40XTAL 41VSS 42TX 43TEX 44VDD 45VFIP 46VIDEO1PD0/A55 47VIDEO2PD1/A54 48VIDEO3PD2/A53 49VIDEO4PD3/A52 50SYS_DTPD4/A51 100G2/A2G3 99G3/A3G4 98G4/A4G5 97G5/A5G6 96G6/A6G7 95G7/A7G8 94G8/A8G9 93G9/A9G10 92G10/A10 91G11/A11S1 90G12/A12S2 89VDD 88G13/A13S3 87G14/A14S4 86G15/A15S5 85A16

38、S6 84A17S7 83A18S8 82A19S9 81A20S10 80A21S11 79A22S12 78A23S13 77PH7/A24S14 76PH6/A25S15 75PH5/A26S16 74PH4/A27S17 73PH3/A28S18 72PH2/A29S19 71PH1/A30S20 70PH0/A31S21 69PG7/A32S22 68PG6/A33S23 67PG5/A34RY_C/R 66PG4/A35RY_A 65PG3/A36RY_AC 64PG2/A37RY_HP 63PG1/A38DIGITAL input 62PG0/A39Multi ch input

39、61PF7/A40Prologic 60PF6/A41DolbyDigital 59PF5/A42DTS 58PF4/A43FM+ 57PF3/A44MPEG/HP surr 56PF2/A45VIRTUAL/HP_surr 55PF1/A46MIDNIGHT 54PF0/A47SW boost 539164_CS 52PD6/A49 PD7/A48 GAIN_SEL 51PD5/A50SYS_CK The information shown in the list is basic information and may not correspond exactly to that show

40、n in the schematic diagrams. PDG264A (FRONT ASSY : IC4201) Mode Control IC Pin Assignment (Top view) 7.2 PARTS 7.2.1 IC List of IC PDG264A, PD5681A 57 VSX-C300, VSX-C300-S .oNemaNniPO / I no i t cnuFev i t cA 12G O 2tuptuod i rGH 21G1tuptuod i rGH 3CNddVot t c ennoC 4NICAItup n i es l upCA 5TDSDRIno

41、 i tac i nummocSDRrof l a ng i satad l o r t nocl a i reS 6KCSDRI ) t pu r r etn i l anre t x erofesU(no i tac i nummocSDRrof l a ng i skco l c l o r t nocl a i reS 7TCDWSItupn i l ang i sno i t cetedrefoowbuS 8CMRI) l ang i sre i r racnon(tupn i l ang i s l o r t nocetomeR 9OERETSIl ang i sonoM/oer

42、etSfo l a ng i sno i ta n i m i r c s i D 01ETUM_TOetumrenuT 11EC_LLPO) renu t ( 13127CLh t i wetac i nummocrof l a ng i s t c e l esp i hC 21TNOCPSOno i t cetedrekaepsretnecroftuptuo l a n g i SH 31DENUTIno i tamrof n i DENUT 41OD_LLPI ) r enu t ( 13127CLh t i wetac i nummocrof l ang i stup n i ata

43、D 51TRATSNAFOtuptuo l a ng i sno i tatorNAFH 61TCDNAFIl ang i sno i t cetedPOTSNAF 71A_CNEV I Atupn i l ang i sredocneyratorLOVE 81B_CNEVBtupn i l ang i sredocneyratorLOVE 91ETUMAOetumo i duAL 022SC_MPSDIl o r t nocretupmocor c i mPSDroftup n i SC 121SC_MPSDOl o r t nocretupmocor c i mPSDroftuptuoSC

44、L 22KC_MPSDOretupmocor c i mPSDehth t i wetac i nummocrof l ang i skc o l CH 32IS_MPSDIretupmocor c i mPSDehth t i wetac i nummocrof l ang i stup n i ataD 42OS_MPSDOretupmocor c i mPSDehth t i wetac i nummocrof l a ng i stuptuoataDH 52XAM_NAFOtuptuo l a ng i sno i tatorNAFH 62RVE_TSOCILOV-Eehth t i

45、wetac i nummocrof l ang i sebo r t SH 72TSR_MPSDOteserretupmocor c i mPSD 82ferVAddVot t c ennoC 92TCDPHItupn i l ang i sno i t cetedenohpdaeH 03TCDRETNECItupn i l ang i sno i t cetedrekaepsretneC 13TCDOMRHTItupn i l ang i sno i t ceted l a mrehT 23CD_PMAI)no i t ceted l a mronbA:L(t i ucr i cno i t

46、 cetorpehtfono i t ceted l a mronbaCD 33LO_PMAI)no i t ceted l a mronbA:L(t i ucr i cno i t cetorpehtfono i t ceted l a mronbadao l revO 431_REVI)n i -ekatD/A(hc t iwsno i tan i t seD 532NIYEK Itup n i yekfo t r opno i srevnocD/A 631NIYEK 73SSVAssVot t c ennoC 83TSRteseR 93LATXE zHM2.7rota l l i cso

47、na t c ennoC 04LATX 14SSVssVot t c ennoC 24XTnepo 34XETssVot t c ennoC 44DDVV5+ 54PDFVV03- 641OEDIV Ol o r t noc6922MJN 742OEDIVH 843OEDIVH 944OEDIVH 05TD_SYSOLLPdna3619CT,64426Mh t i wetac i nummocrof l ang i sataDH Pin Function 58 VSX-C300, VSX-C300-S .oNemaNniPO / I no i t cnuFev i t cA 15KC_SYSOLLPdna3619CT,64426Mh t i wetac i nummocrof l ang i skc o l CH 25LES_NIAGOtup n i go l anafot a l FdnaoeretStaLhc t iwsn i aGH 35SC_4619Ot ce l esp i hc4619CTH 45t soobWSOSSAB.Sta t s oobrefoowbuSH 55THGINDIMOthg i n d i mta s