Pioneer-VSX918VK-avr-sm维修电路原理图.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 CORPORATION2008 2008 Printed in Japan MASTER VOLUME VSX-918V STANDBY/ON PHONES DVDDVRTVVIDEO/PORTABLECD/CD-RiPodFM/AMXM SPEAKERSVSB MODE SIGNAL SELECT SOUND RETRIEVER SIRIUSAUX PHASE CONTROL INPUT SELECTOR ADVANCED SURROUND STEREO / A.L.C.STANDARD AUDIO/VIDEO MULTI-CHANNEL

3、RECEIVER ACOUSTIC EQ PHASE CONTROL AUTO SURR / STREAM DIRECT MCACC PORTABLEiPod DIRECTAUDIORLVIDEO DIGITAL PRECISION PROCESSING VSX-918V-K RRV3706 AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-918V-K VSX-918V-S VSX-818V-K VSX-818V-S THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). ModelType

4、Power RequirementRemarks VSX-918V-KKUXJ/CAAC 120 V VSX-918V-SKUXJ/CAAC 120 V VSX-818V-KKUXJ/CAAC 120 V VSX-818V-SKUXJ/CAAC 120 V For details, refer to Important Check Points for good servicing. T-ZZK JAN. RadioFans.CN 收音机爱 好者资料库 2VSX-918V-K 1234 A B C D E F 1234 SAFETY INFORMATION This service manua

5、l 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 trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs

6、 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 should not risk trying to do so and refer the repair to a qualified service technician. WARNING This product contains lea

7、d 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 * When connected the equipment to IN2; Yes Yes CN1002 (Pin 5) Is the voltage 7 V? No V+7 Yes IC901 (Pin 1) Is the voltage 3.3 V? No

8、V+3R3V Check the IC901. If IC901 is failure, replace IC901. Check the IC911. If IC911 is failure, replace IC911. Yes JA101 (Pin 18) Is the voltage 5 V? No V+5R0 Yes Check the JA101. If JA101 is failure, replace JA101. JA102 (Pin 18) Is the voltage 5 V? No V+5R1 Yes Check the JA102. If JA102 is failu

9、re, replace JA102. This shows failure analysis of the HDMI Assy. RadioFans.CN 收音机爱 好者资料库 46VSX-918V-K 1234 A B C D E F 1234 A Step 2-3: Input selection Diagnose the MAIN Assy. Yes CN1001 (Pin 5) Is the voltage L when selecting IN1? And is the voltage H(5V) when selecting IN2? No SELA B Step 2-4: Hot

10、 Plug Detect CN1001 (Pin 7) Step 2-5: SDA/SCL HPD_IN Is the voltage H (5 V)? Check the JA301. If JA301 is failure, replace JA301. Yes CN1001 (Pin 6)HPD_SINK Is the voltage H (5 V)? Yes No No IC102 (Pin 7)SDA (HDMI OUT) SDA (HDMI IN1) Does a signal output in constant period (0 to 5 V) ? Check the JA3

11、01 and IC102. If JA301 or IC102 is failure, replace JA301 or IC102. No No No Yes IC102 (Pin 9)SCL (HDMI OUT) Does a clock output in constant period (0 to 5 V) ? Check the JA301 and IC102. If JA301 or IC102 is failure, replace JA301 or IC102. Yes IC101 (Pin 63) Is there a same signal as IC102-pin 7 w

12、hen selecting IN1? Yes Check the IC101 and JA101. If IC101 or JA101 is failure, replace IC101 or JA101. Check the IC101 and JA101. If IC101 or JA101 is failure, replace IC101 or JA101. JA101 (Pin 19) No HPD0 Yes JA102 (Pin 19)HPD1 * When connected the source equipment to IN1; * When connected the so

13、urce equipment to IN1; * When connected the source equipment to IN2; SCL (HDMI IN1) No IC101 (Pin 64) Is there a same signal as IC102-pin 9 when selecting IN1? Yes Check the IC101 and JA101. If IC101 or JA101 is failure, replace IC101 or JA101. SDA_SINK No No SCL_SINK IC101 (Pin 39) Is there a same

14、signal as IC102-pin 7 (0 to 3.3V) ? Yes Check the IC102 and IC101. If IC102 or IC101 is failure, replace IC102 or IC101. Check the IC102 and IC101. If IC102 or IC101 is failure, replace IC102 or IC101. IC101 (Pin 38) Is there a same signal as IC102-pin 9 (0 to 3.3V) ? Yes Diagnose the MAIN Assy. Dia

15、gnose the MAIN Assy. Yes CN1001 (Pin 4) Is the voltage H(5V) when selecting IN1? And is the voltage L when selecting IN2? Is the voltage 5 V when selecting IN1? Check the IC101 and JA102. If IC101 or JA102 is failure, replace IC101 or JA102. No Yes Is the voltage 5 V when selecting IN2? No SELB (0 t

16、o 5 V) (0 to 5 V) RadioFans.CN 收音机爱 好者资料库 47VSX-918V-K 5678 5678 A B C D E F Step 2-6: TMDS IC101 (Pins 25,26,28,29,31,32,34,35)TMDS OUTPUT B SDA (HDMI IN2) No IC101 (Pin 45) Is there a same signal as IC102-pin 7 when selecting IN2? Yes Check the IC101 and JA102. If IC101 or JA102 is failure, replac

17、e IC101 or JA102. * When connected the source equipment to IN2; SCL (HDMI IN2) No IC101 (Pin 46) Is there a same signal as IC102-pin 9 when selecting IN2? Yes Check the IC101 and JA102. If IC101 or JA102 is failure, replace IC101 or JA102. (0 to 5 V) (0 to 5 V) End No Are there signals(approx. 0.5 V

18、p-p) in all lines? Yes Check the IC101. If IC101 is failure, replace IC101. RadioFans.CN 收音机爱 好者资料库 48VSX-918V-K 1234 A B C D E F 1234 5.2 DETECTION CIRCUIT MAIN ASSY IC9001 (U-P) Pin72 DC PROT Normal : +5 V DC Detect : 0 V FL POWER AMP POWER AMP XPROTECT (refer 4) 1. DC Derection Circuit Diagram :

19、Example of VSX-918V/KUXJ/CA 2. Overload Detection Circuit Diagram: Example of VSX-918V/KUXJ/CA FRONT Channel 3. Fan Stop Protection Circuit Diagram POWER PACK ASSY POWER PACK ASSY MAIN ASSY IC603(2/3) R788 R696 C696 C697 R726 D+5V IC9001 (U-P) Pin72 DC PROT DC DT OL DT Q696 Q697 IC601(1/2) R628 IC60

20、3(3/3) R694 IC601(2/2) R674 IC603(1/3) R623 IC603(2/3) 7pin FR SL SR C R785 R786 D777 R784 R445 Fan Stop DET. D+5V +24V R727 R438 FL Q505 D778 MAIN ASSY IC9001 (U-P) Pin73 OL DET Normal : +5 V OVER LOAD Detect : 0 V POWER PACK ASSY XPROTECT MAIN ASSY IC9001 (U-P) Pin 89 XPROTECT Normal : +5 V FAN ab

21、normal STOP : 0 V SPEAKER Impedance Fan Stop Fan Fan - Fan + Q253 Q252 D+5V R725 C C C A A A RadioFans.CN 收音机爱 好者资料库 49VSX-918V-K 5678 5678 A B C D E F D713 1SS133 Q702 2SA2005(E) Q701 2SC5511(E) D+5V Voltage supply to POWER AMP IC (V neck-) Voltage supply to POWER AMP IC (V neck+) R697 10k R698 33k

22、 R713 1k R807 10k D801 S1WB(A)60SD D807 D806 MTZJ6.2B Q807(2/2) Q807(1/2) Q808(1/2) D+5.6V Q808(2/2) Q698 Voltage supply to +12 V REGULATOR IC Voltage supply to -12 V REGULATOR IC C806 1/50 C801 2200 /25 C802 2200 /25 R806 10k R808 1k IC9001 (U-P) XPROTECT 4. XPROTECT Detection Circuit Diagram When

23、below 6 kind of voltage supply become to be short circuit to GND, XPROTECT circuit work and U-P input port voltage change from +5 V to 0 V. The U-P detect this condition as ERROR. Voltage supply to POWER AMP IC (V neck+) Voltage supply to POWER AMP IC (V neck-) Voltage supply to +12 V REGULATOR IC V

24、oltage supply to -12 V REGULATOR IC POWER PACK ASSY MAIN ASSY 89 C A RadioFans.CN 收音机爱 好者资料库 50VSX-918V-K 1234 A B C D E F 1234 5.3 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION 1. DC-abnormality detection DC detection is only enabled 2 seconds after power-on. If there is a fault in the power

25、amplifier or a high-level signal lower than 5 Hz is input, the DC_DET port becomes “L”. If the “L” is detected, the microprocessor will perform as following flow chart. In the case of simultaneous detection with the overload protection circuit, DC-abnormality detection is performed preferentially to

26、 overload detection. If the speaker terminals are short-circuited or low-load driving is detected, the OL_DET port becomes “L”. If the “L” is detected, the microprocessor will perform as following flow chart. *A.MUTE : Audio mute command The abnormality continues for 3 seconds. Continues. Recovery T

27、he power is shut off. The program restarts. Power key not effective and POWER LED blinks (only for VSX-918V). However, when the following keys are pushed so that the key input of a line and the service can be carried out, power can be on. 1 TESTMODE ON (A55F+A55F) 2 When power off, push TUNE+ key +

28、AUTO SURR/DIRECT key continuously 2sec. (2: When a DC abnormality is detected and the power is shut off.) Any other key input from front panel or remote control will not be detected. 2. Overload detection The abnormality continues for 3 seconds. Continues. Recovery The power is shut off. The power i

29、s shut off even if the unit recovers. When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is turned off, then AMP_ERR flashes on the display. When an overload is detected, A.MUTE* is turned on, speaker relay is turned off, then OVERLOAD flashes on the display. RadioFans.CN 收音机爱 好者

30、资料库 51VSX-918V-K 5678 5678 A B C D E F 6. SERVICE MODE There is no information to be shown in this chapter. However, when the following keys are pushed so that the key input of a line and the service can be carried out, power can be on. 1 TESTMODE ON (A55F+A55F) 2 When power off, push TUNE+ key + AU

31、TO SURR/DIRECT key continuously 2sec. (Effective, only when power-off is carried out by DC detection / XPROTECT detection) Any other key input from front panel or remote control will not be detected. XPROTECT is started to be monitored 200msec after power on. XPROTECT port is checked every 20msec. I

32、f Low level (ERROR) is recognized during consecutive 9 times, micon judge it as XPROTECT ERROR. It processes more preferentially than DC abnormal detection and overload detection. 3. XPROTECT detection Power key not effective (*1) and POWER LED blinks (only for VSX-918V). after 60sec after X sec Pow

33、er key become effective. POWER LED continue to blink. AC OFF If micon detect XPROTECT = Low for 200 msec, it judge as error, and then AMUTE on, speaker relay off and shut down power supply immediately. When 200 msec passed after power on, the XPROTECT detection starts. Dont detect it during power of

34、f. POWER ON POWER ON Then no more POWER LED blinks. AC ON after Y sec When X+Y reach 60sec. (*1) 4. Fan stop detection operation flow in the XPROTECT detection If the fan is forcibly stopped or become out of order, the XPROTECT port becomes L. Then an abnormality of fan is detected. Detection routin

35、e and recovery is same as 3. XPROTECT detection. RadioFans.CN 收音机爱 好者资料库 52VSX-918V-K 1234 A B C D E F 1234 7. DISASSEMBLY Remove the three screws. HDMI&DSP&USB Assy HDMI&DSP&USB Assy POWER PACK Assy Extension jig cable (GGD1485) Extension jig cable (GGD1483) Ground line Diagnosis of HDMI 1 Remove t

36、he bonnet by removing the six screws.1 Remove the one screw.2 Disconnect the two connectors.3 Remove the HDMI&DSP&USB Assy.4 Connect the two extension jig cables. GGD1483 (HDMI&DSP&USB CN1 POWER PACK CN805) GGD1485 (HDMI&DSP&USB CN2 POWER PACK CN806) 5 Connect the ground line. (HDMI&DSP&USB COAX ter

37、minal Rear panel, One of the three HDMI terminals Rear panel) 6 1 1 1 2 33 4 55 6 Note 1: Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures described here are common. Note 2: For performing the diagnosis shown below, the following jigs

38、 for service are required: Extension jig cables : GGD1483, GGD1485 Rear view Caution: Heatsink section in work becomes hot, and be careful with it. For VSX-918V Diagnosis RadioFans.CN 收音机爱 好者资料库 53VSX-918V-K 5678 5678 A B C D E F Remove the three screws. HDMI Assy DSP&USB Assy DSP&USB Assy HDMI Assy

39、 POWER PACK Assy Extension jig cable (GGD1485) Extension jig cable (GGD1483) Ground line 1 Remove the one screw.2 Release the PCB holder.3 Remove the HDMI Assy.4 Release the PCB holder.5 Disconnect the two connectors.6 Remove the DSP&USB Assy.7 Connect the two extension jig cables. GGD1483 (DSP&USB

40、CN1 POWER PACK CN805) GGD1485 (DSP&USB CN2 POWER PACK CN806) 8 Connect the ground line. (DSP&USB COAX terminal Rear panel) (HDMI One of the three HDMI terminals Rear panel) 9 1 1 1 2 66 4 7 5 88 9 Rear view 3 For VSX-818V Diagnosis RadioFans.CN 收音机爱 好者资料库 54VSX-918V-K 1234 A B C D E F 1234 Remove th

41、e two screws. PRIMARY Assy Diagnosis of the Unit 1 Remove the bonnet by removing the six screws.1 Remove the one screw.2 Remove the two screws.3 Remove the one screw.4 Remove the push rivet.5 Remove the BIND Assy by removing the one screw.6 Remove the one screw.7 Release the binders, as required.8 4

42、 7 5 11 6 3 3 Rear view Caution: Heatsink section in work becomes hot, and be careful with it. BIND AssyHeatsink MAIN Assy Heatsink 2 RadioFans.CN 收音机爱 好者资料库 55VSX-918V-K 5678 5678 A B C D E F Arrange the unit as shown in the photo below. Rear panel POWER PACK Assy Heatsink 9 Diagnosis C MAIN Assy A

43、 HDMI&DSP&USB Assy (VSX-918V) V HDMI Assy W DSP&USB Assy B VSX-818V 9 Be careful with it so that a part of PRIMARY Assy does not touch chassis. One of the three terminals Be careful with it when lifts an AMP. section not to damage the TRANS Assys. Caution: During diagnosis, be sure NOT to remove the

44、 four screws marked A in the above photo. There is the case that a product does not work normally when removes these screws. Do not lift the unit in this state. A AA A RadioFans.CN 收音机爱 好者资料库 56VSX-918V-K 1234 A B C D E F 1234 Remove the five screws. Disassembly 1 Remove the bonnet by removing the s

45、ix screws.1 Remove the two screws.2 Unhook the two hooks.3 Remove the front panel section.4 Caution: Heatsink section in work becomes hot, and be careful with it. Front Panel Section 2 4 23 11111 3 Front panel section RadioFans.CN 收音机爱 好者资料库 57VSX-918V-K 5678 5678 A B C D E F 8. EACH SETTING AND ADJ

46、USTMENT 8.1 HOW TO UPDATE FIRMWARE USB Firmware Update USB Flash Memory which is saved the firmware file (player.rom file). Note: In rare cases, it is not able to update the firmware depending on the type of USB flash memory. In such a case, try to use other model of USB flash memory. Necessary Tool

47、s When the Master Volume is - dB , the firmware rewriting mode can enter with the following key operation. During POWER OFF 1. Press and hold the POWER and PHASE CONTROL keys for about 5sec. 2. USB or IPOD is appeared on the FL display. 3. WAITING is appeared on the FL display. 4. After 20 seconds,

48、current version CORE1.50 is appeared on the FL display. Note: Do not insert the USB flash memory till this indication is displayed. 5. Connect the USB flash memory which is saved the firmware file (player.rom file). 6. UPDT 024 is displayed on the FL display. 7. Wait until COMPLETE is appeared on th

49、e FL display. 8. USB/iPod can be used by turning OFF and ON the POWER (Release the download mode.) After the power is turned off once 1. Turn off the unit then press and hold POWER and PHASE CONTROL keys for about 5sec. 2. USB or IPOD is appeared on the FL display. 3. WAITING is appeared on the FL display. 4. After 20 seconds, version CORE2.00 is appeared on the FL display. 5. USB/iPod can be used by turning OFF and ON the POWER (Release the download mode.) Note: Do NOT reconnect the USB flash memory which is saved the player.r