Pioneer-VSXC100-avr-sm 电路图 维修手册.pdf

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1、 ORDER NO. PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) 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

2、, Singapore 159936 PIONEER CORPORATION 2002 R STANDBY/ON PHONES VIDEOAUDIO DIGITAL IN LR FRONT INPUT DOWNUP AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-C100 2? DIGITAL 2DTS INPUT SIGNAL AUTOADVANCEDSOUND MODE DVDFM/AMFRONT MASTER VOLUME DVR/VCRTV/SAT PHONES /VIRTUAL SURROUND MODE PRO LOGIC II VSX-C100-S

3、RRV2605 AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-C100-S VSX-C100-K THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelTypePower RequirementRemarks VSX-C100-SMYXUAC220-230V VSX-C100-KMYXUAC220-230V VSX-C100-SNVXUAC240V For details, refer to Important symbols for good services . T-ZZR

4、 MAY. 2002 printed in Japan RadioFans.CN 收音机爱 好者资料库 VSX-C100-S2 1234 1234 C D F A B E SAFTY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been

5、 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 are not qualified to perform the repair of this product properly and safely, you

6、 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 California to cause cancer, birth defects or other reproductive harm. Health and LED: E

7、very other letter of the alphabets is displayed FL: IJKLMNOP displayed; and LED: Every other letter of the alphabets is displayed highlighted Normal display . 5. Rear-and-center relay switch8 key Each time the remote control code is received, the rear-and center relay is toggled on or off. 6. DOLBY

8、Pro Logic mode7 key Distance setting for the front and center speakers: 3 m Distance setting for the rear speaker: 1.5 m PROLOGIC2 EMU mode Speaker setting: All Large, SW ON All settings other than the above will be returned to the factory- preset values. 7. FAN ON/OFF switch key The fan is turned o

9、n or off and rotates as follows: FAN ON LO SPEED FAN ON HI SPEED FAN OFF . 8. Master volume switch1 key The master volume is switched as follows and each time is 0dB. Minus infinity 0 dB . When the remote control code is received for the first time, the master volume is set to minus infinity. 9. 9k/

10、10k switch2 key For the models HL, SB and SP only, when the $A55F+$A505 code is received, this switches between 9k and 10k. 10. Thermistor check3 key When the remote control code is received, start the thermistor check. When the remote control code is received after 90 seconds, display the result of

11、 thermistor check. At check OK, THRM OK flashes for five seconds. At check NG, THRM NG flashes for five seconds. During check, CHECKING flashes for five seconds. 11. Speaker auto-detection check (CH) ENTER key When the remote control code is received, automatic detection of the speaker starts, and t

12、he result will be displayed for 5 seconds, as C_S_W_, where , indicates connected, and indicates that no speaker is connected. 12. Analog inputs check4 key When the remote control code is received, forced analog inputs and 2-channel stereo mode are set for all functions. Speaker setting: All high vo

13、lume, SW ON When this mode is entered, SIG:ANA will be displayed for 5 seconds. 13. SRAM check & dts check key Function: TV VOL value: 0 dB Distance setting for the front: 3 m Other distance settings: 2.1 m PROLOGIC2 EMU mode Speaker setting: All Large, SW ON All settings other than the above will b

14、e returned to the factory- preset values. 14. Audio mute check5 key When the remote control code is received, switch the ON/OFF of AMUTE pin (pin 53) cyclically. VOL value: 0 dB 15. DSP mute check6 key When the remote control code is received, switch the ON/OFF of DSPMUTE pin (pin 61) cyclically. VO

15、L value: 0 dB 16. Digital input forced mode key Check of DIR ERR When the remote control code is received, turn the function to the forced digital input mode. Speaker setting: All high volume, SW ON When this mode is entered, SIG:DIG will be displayed for 5 seconds. VOL value: 0 dB 17. Input ATT che

16、ck7 key Fuction: VCR When the remote control code is received, switch the ON/OFF of INPUT ATT cyclically. VSX-C100-S55 5678 56 7 8 C D F A B E 7.1.2 Protection of the Amplifi er Line 18. SW BOOST pin check8 key When the remote control code is received, switch the ON/OFF cyclically. VOL value: 0 dB 1

17、9. FM+ pin check9 key When the remote control code is received, switch the ON/OFF cyclically. 20. PREGAIN pin check0 key When the remote control code is received, switch the ON/OFF cyclically. VOL value: 0 dB 21. MVRATT pin check (CH) + key Each time the remote-control code is received, switch H and

18、 L cyclically. VOL value: 0 dB 22. NJU7311 switching check (CH) - key Each time the remote-control code is received, switch the function cyclically as follows: OFF NATURAL BRIGHT OFF . 7.1.2 1. DC Abnormality Detection This detection has priority over the overload detection and abnormality detection

19、 for the fan and thermistor. If AC plug is pulled off within 60 sec, then AC plug in again, receiver will reset for While the unit is recovering from the abnormality, the OVERLOAD display continues flashing. 3. Specifications of DSP Overload Detection 1. Detect overload detection signal of DSP in th

20、e port and light a OVER segment if detected for 30 seconds. Light it for 1 second if lighted once. 2. Do not detect in the following case. During power OFF During initialization During mute During Test tone When analog direct path is selected SOUND mode is OFF in the STEREO mode. Front speaker is la

21、rge and SW except PLUS, or during Headphones. When detect DC abnormal, Amute on and speaker relay off, then flash AMP_ERR on the display. An unusual state continues for 3 seconds. A power supply is shut off. continuation A program is performed from the beginning. return return Power key cannot effec

22、tive 60 seconds. When detect overload, Amute on and speaker relay off, then flash OVERLOAD on the display. An unusual state continues for 3 seconds. A power supply is shut off. continuation A power supply is shut off even if it returns. 2. Overload Detection This detection has priority over the abno

23、rmality detection of the fan and thermistor. VSX-C100-S56 1234 1234 C D F A B E 7.1.3 Operation of the Fan-Control Line FAN Driver Q404 2SC2712(GRBL) Q405 DTA124EK Q403 2SC2712(GRBL) Q406 DTA124EK 1SS355 FAN Drive +12V GNDRY IC4201 PDG269A CN305 CN306 TERMO DTC V+5 FAN+ FAN- FAN STOP 1. Temperature

24、detection of the heat sink The detection is performed every 1 second by taking in the voltage of the thermistor at A/D (PORT 31). 2. Perform the following operation by detection temperature 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

25、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 temperature falls to 65C. Once the fan starts rotating, it continues to rotate for at least 20 seconds even after the t

26、emperature 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 if H (abnormal) is indicated for the FANDCT connector, FAN STOP is displayed for 5 seconds, then the power is turned

27、 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 detection is not carried out. 5. Abnormality in the thermistor If an abnormality (A/D voltage: 0.1 V or less) is detect

28、ed in the thermistor, THDCT NG is displayed for 5 seconds, then the power is turned off. THRMO DCT (pin 31) A/D Setting Voltage FAN LOW (pin 51) FAN HIGH (pin 52) SP RELAY (pins 48-50) AMUTE (pin 53) Display 0 to 0.1V 5LLLLTHDCT NG flashes for 5 seconds. 0.1V to 2.4V5 to 122(60C)LLHH 2.6V to 2.8V(70

29、C)134 -HLHH 2.8V to 3.4V(75C)145 -LHHH 3.4V to 4.1V(90C)174 -LHHH HEAT UP flashes for 5 seconds at 20- sec intervals. 4.0V -(110C)204 -LHLLOVERHEAT flashes Note: Pin No. shows pin No. of IC4201 (PDG269A). FAN HIGH FAN LOW VSX-C100-S57 5678 56 7 8 C D F A B E 7.1.4 Specifi cations of Speaker Detectio

30、n mute 10 k POWER AMP Center and surround Detection Check signal from U-COM Detection signal to U-COM Mute About 8 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 w

31、ithout making cumbersome speaker settings. 2. Method of detecting speakers Whether a center speaker, surround 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

32、 signal to judge whether the 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 co

33、nsidered correct. If a different 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 wi

34、th a switch is read by the microcomputer 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,

35、and the two results that agree 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: 4. Users settings In Setup mode, more detailed speaker setting

36、s 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 for the center a

37、nd surround speakers Results of the DetectionsSpeaker Setting Center SPSurround SPSub-wooferFront SPCenter SPSurround SPSub-woofer ConnectedConnectedConnectedSmallSmallSmallConnected (200Hz) ConnectedConnectedNot connectedLargeSmallSmallNot connected ConnectedNot connectedConnectedSmallSmallNot conn

38、ectedConnected (200Hz) ConnectedNot connectedNot connectedLargeSmallNot connectedNot connected Not connectedConnectedConnectedSmallNot connectedSmallConnected (200Hz) Not connectedConnectedNot connectedLargeNot connectedSmallNot connected Not connectedNot connectedConnectedSmallNot connectedNot conn

39、ectedConnected (200Hz) Not connectedNot connectedNot connectedLargeNot connectedNot connectedNot connected VSX-C100-S58 1234 1234 C D F A B E 7.1.5 Circuit Description Protection circuit when the edge of speaker is oveload 1FAN detection circuit3 DC detection circuit of SP terminal2 R4243 10k R405 1

40、0k R407 1k D401 D410 UDZS5.1B C402 0.01 R325 330 R317 0.22 R327 1.8k FRONT Assy POWER Assy +5V FL SP edge GND FL D301 D303 DAP202K To -COM To -COM ODCT FAN DCT A speaker (6) is connected between FL and GNDFL normally. Q305 (306) (345) (346) (383) does not work because the voltage of A point is highe

41、r than B point. If a resistance value between FL and GNDFL becomes less than 1.2, Q305 (306) (345) (346) (383) turns ON. And ODCT becomes with negative component of output level. -COM detects it, and turn the power OFF. A B Q305 DDCT FAN+ CN305 FAN- FAN.STOP 1 2 3 R372 22k R392 22k Q384Q385 +5V R396

42、 10k R4244 47k Q384 and Q385 are turning OFF together normally. (1) When the DC voltage of the plus (+) side was generated on the SP edge When the DC voltage of the plus (+) side was generated in L ch or R ch, Q384 turns ON and DDCT becomes Low level if VB of Q384 becomes higher than operating point

43、. -COM detects it, and turn the power OFF. (2) When the DC voltage of the minus (-) side was generated on the SP edge Q385 turns ON with + side in reverse, and DDCT works. When FAN is not connected between FAN+ and FAN-, or an alien substance is clogged up in the FAN at the FAN LOCK status, FAN STOP

44、 becomes the same electric potential as the FAN- (Low). -COM detects it, and turn the power OFF. RR C R408 100k C391 220/10 R371 22k RL R332 22k FR R331 22k FL POWER Assy FRONT Assy +5.6V VSX-C100-S59 5678 56 7 8 C D F A B E 7.1.6 Trouble Shooting START Yes NO Check the connection (FRONTAssy - POWER

45、 Assy) Check each voltages of V+5R6, AC1, AC2 and V-FL (FRONT Assy) Check the oscillation of X4201 (FRONT Assy) Check ACWP signal (FRONT Assy: pin 4 of IC4201) Check ACRY signal (POWER Assy: base of Q201) Is FL turn on ? OK Set NO 5.1 CH output is OK? Is not error message indicate it ? AMP ERR OVERL

46、OAD indication ? Check the output of pins 25-31 of IC1101 (DSP Assy) NO THDCT NG indication ? NODSP NG indication ? Yes Yes Yes Yes Check the output of pins 31-36 of IC1409 (DSP Assy) Check the input of pins 6-15 of IC1409 (DSP Assy) Yes Yes YesYesYes Are format indicator (red for input) and DOLBY D

47、IGITAL LED lighting? Check SURROUND: AUTO Check the indicator of output format Check the send DVD player setting NO Check the connection (DSP Assy - DIGITAL IN Assy) Check the send DVD player setting Check the voltage of IC1101(DSP Assy) Is the switch of analog / digital signal becoming with digital

48、 or AUTO? Is input switch setting of coax and optical 1 properly ? NONO NO NONO Check the output of pins 3-13 of CN1501 (DSP Assy) Yes NO R317, R318, R357, R358, R386 (POWER Assy) Yes Yes NO Check the control of protection relay Q387, Q389: (POWER Assy) B= H Check the voltage of RY301, RY341, RY381

49、(POWER Assy) Check the connection (POWER Assy to DSP Assy) Check the voltage of IC301 and IC341 Is not a SP edge short-circuiting? Check the connection (FRONT Assy - DSP Assy) Check the voltage of IC1201 to IC1204 and IC1208 (DSP Assy) Check the oscillation of X1201(DSP Assy) Check the following communications: IC1201 (DSP Assy): pins 8-11, 14-17 and IC1204 (DSP Ass