Pioneer-VSX918V-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 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. 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 Plug Detect CN1001 (Pin

10、 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 JA301 and IC102. If JA301 o

11、r 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 when selecting IN1? Yes C

12、heck 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 source equipment to IN1; *

13、 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 signal as IC102-pin 7 (0

14、 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. Diagnose the MAIN Assy. Yes

15、 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 to 5 V) (0 to 5 V) 47VSX-

16、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, replace IC101 or JA102. * When connected the source eq

17、uipment 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 Vp-p) in all lines? Yes Check the IC101. If IC101

18、 is failure, replace IC101. 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 : Example of VSX-918V/KUXJ/CA 2. Overload Detection Circuit Diagram: Examp

19、le 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 IC603(3/3) R694 IC601(2/2) R674 IC603(1/3) R623 IC603(2/3) 7pin FR SL SR C R

20、785 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 abnormal STOP : 0 V SPEAKER Impedance Fan Stop Fan Fan - Fan + Q253 Q252 D

21、+5V R725 C C C A A A 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 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(

22、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 below 6 kind of voltage supply become to be short circuit to GND, XPROTECT circuit work and U-P

23、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 Voltage supply to -12 V REGULATOR IC POWER PACK ASSY MAIN ASSY 89 C A 50VSX-918V-K 1234 A B C D E

24、 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 amplifier or a high-level signal lower than 5 Hz is input, the DC_DET port becomes “L”. If the “L” is detected, the micr

25、oprocessor will perform as following flow chart. In the case of simultaneous detection with the overload protection circuit, DC-abnormality detection is performed preferentially to overload detection. If the speaker terminals are short-circuited or low-load driving is detected, the OL_DET port becom

26、es “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 The power is shut off. The program restarts. Power key not effective and POWER LED blinks (only for VSX-918V). However, w

27、hen 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 + AUTO SURR/DIRECT key continuously 2sec. (2: When a DC abnormality is detected and the power is shut off.) Any other key

28、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 is shut off even if the unit recovers. When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is turned o

29、ff, 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. 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

30、 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 + AUTO SURR/DIRECT key continuously 2sec. (Effective, only when power-off is carried out by DC detection / XPROTECT detection) Any other key input f

31、rom 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. If Low level (ERROR) is recognized during consecutive 9 times, micon judge it as XPROTECT ERROR. It processes more preferentially than DC abnorma

32、l 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 Power 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,

33、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 off. 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 XPR

34、OTECT 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 routine and recovery is same as 3. XPROTECT detection. 52VSX-918V-K 1234 A B C D E F 1234 7. DISASSEMBLY Remove the three screws. HDMI&DSP&USB Assy HD

35、MI&DSP&USB Assy POWER PACK Assy Extension jig cable (GGD1485) Extension jig cable (GGD1483) Ground line Diagnosis of HDMI 1 Remove the 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. GGD14

36、83 (HDMI&DSP&USB CN1 POWER PACK CN805) GGD1485 (HDMI&DSP&USB CN2 POWER PACK CN806) 5 Connect the ground line. (HDMI&DSP&USB COAX terminal 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 diff

37、er from your product, the procedures described here are common. Note 2: For performing the diagnosis shown below, the following jigs 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 Diagnos

38、is 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 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 Disco

39、nnect the two connectors.6 Remove the DSP&USB Assy.7 Connect the two extension jig cables. GGD1483 (DSP&USB 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

40、88 9 Rear view 3 For VSX-818V Diagnosis 54VSX-918V-K 1234 A B C D E F 1234 Remove the 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

41、removing the one screw.6 Remove the one screw.7 Release the binders, as required.8 4 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 55VSX-918V-K 5678 5678 A B C D E F Arrange the unit as shown in the photo below. R

42、ear panel POWER PACK Assy Heatsink 9 Diagnosis C MAIN Assy A 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

43、 Assys. Caution: During diagnosis, be sure NOT to remove the 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 56VSX-918V-K 1234 A B C D E F 1234 Remove the five screws. Disassembly 1

44、 Remove the bonnet by removing the six 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 57VSX-918V-K 5678 5678 A B C D E F 8. EACH SET

45、TING AND ADJUSTMENT 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. Ne

46、cessary Tools 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

47、20 seconds, 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 ap

48、peared on the 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

49、 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.rom file. Do NOT change the function setting or turn off the power during step 5 through 7. If you do, the updating is failed and it is required to replace the USB flash ROM on the USB module. Procedures Purpose Refer to this section when updating the USB firmware is required by the se