Panasonic-SAVK71DG-cs-sm 电路图 维修手册.pdf

《Panasonic-SAVK71DG-cs-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Panasonic-SAVK71DG-cs-sm 电路图 维修手册.pdf（155页珍藏版）》请在收音机爱好者资料库上搜索。

1、n AMPLIFIER SECTION RMS Output Power : Dolby Digital Mode Front Ch 70 W per channel (6 ), 1 kHz, 10 % THD Surround Ch 35 W per channel (6 ), 1 kHz, 10 % THD Center Ch 70 W per channel (6 ), 1 kHz, 10 % THD Total RMS Dolby Digital mode power 280 W PMPO output power3000 W n FM / AM TUNER, TERMINALS SE

2、CTION Preset stationFM 15 stations AM / MW 15 stations Frequency Modulation (FM) Frequency range87.50 -108.00 MHz (50 kHz step) Sensitivity2.5 V (IHF) S / N 26dB2.2 V Antenna terminals75 (unbalanced) Amplitude Modulation (AM / MW) Frequency range522 -1629 kHz (9 kHz step) 520 -1630 kHz (10 kHz step)

3、 AM sensitivity S / N 20 dB at 1000 kHz 560 V / m Audio performance (Amplifier) Input sensitivity / Input impedance 2004 Panasonic AVC Networks Singapore Pte. Ltd. (RCB Registration Number: 197701580H) All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-VK71DGC SA-VK71DG

4、S Colour (S). Silver Type Aux250 mV, 20 k Phone jack TerminalStereo, 3.5 mm jack Mic jack Sensitivity0.7 mV, 600 TerminalMono, 6.3 mm jack (2 system) n CASSETTE DECK SECTION TypeAuto Reverse Track system4 Track, 2 Channel Head Record / PlaybackSolid Permalloy Head ErasureDouble Gap Ferrite Head Moto

5、rDC Servo Motor Recording SystemAC Bias 100 kHz Erase SystemAC Erase 100 kHz Tape Speed4.8 cm / s Overall Frequency Response ( + 3, - 6 dB) at DECK OUT Normal (TYPE I)35 Hz -14 kHz S / N Ratio50 dB (A weighted) Wow and Flutter0.18 % (WRMS) Fast Forward and Rewind TimeApprox. 120 seconds with C- 60 c

6、assette tape n DISC SECTION Disc played 8 cm or 12 cm (1) DVD- RAM (DVD- VR compatible, JPEG formatted disc) (2) DVD- Audio (3) DVD- Video DVD Stereo System Specifications ORDER NO. MD0407369C3 RadioFans.CN 收音机爱 好者资料库 (4) DVD- R (DVD- Video compatible) (5) CD- Audio (CD- DA) (6) Video CD (7) SVCD (C

7、onforming to IEC62107) (8) CD- R / CD- RW (CD- DA, Video CD, SVCD, MP3, WMA, JPEG formatted disc) (9) MP3 / WMA * Compatible compression rate: MP3: between 32 kbps and 320 kbps WMA: between 48 kbps and 192 kbps (10) JPEG * Exif Ver 2.1 JPEG Baseline files Picture resolution: between 320 x240 and 614

8、4x4096 pixels (Sub sampling is 4:2:2 or 4:2:0) (11) HighMAT Level 2 (Audio and Image) The total combined maximum number of recognizable audio and picture contents and groups: 4000 audio and picture contents and 400 groups. Pick up Wavelength (DVD / CD)662 nm / 785 nm Audio ouptut (Disc) Number of ch

9、annels5.1 ch (FL, FR, C, SL, SR, SW) Audio performance (measurement at: Line out terminal) Frequency response CD- Audio4 Hz -20 kHz ( + 1, - 2 dB) n VIDEO SECTION Video system Signal systemPAL625 / 50, PAL525 / 60, NTSC Composite video output Output level1 Vp- p (75 ) TerminalPin jack (1 system) S V

10、IDEO output Y output level1 Vp- p (75 ) C output level0.3 Vp- p (75 ) (PAL) 0.286 Vp- p (75 ) (NTSC) TerminalS terminal (1 system) Component video output (480P / 480I) 1 Caution for AC power supply cord 4 2 Before Use 4 3 Before Repair and Adjustment 4 4 Protection Circuitry 4 5 Safety Precautions 5

11、 5.1. General Guidelines 5 6 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 5 7 Handling the Lead-free Solder 6 Y output level1 Vp- p (75 ) PBoutput level0.7 Vp- p (75 ) PRoutput level0.7 Vp- p (75 ) Terminal Pin jack (Y: green, PB: blue, PR: red) (1 system)

12、 n GENERAL Power supply AC 110V / 127V / 220- 230V / 240V, 50 / 60Hz Power consumption246 W Power consumption in standby mode: 1 W Dimensions (WxHxD)250 x 330 x 364 mm Mass9.5 kg Operating temperature range+ 5 C to + 35 C Operating humidity range5 % to 90 % RH (no condensation) n SYSTEM SC- VK71D (G

13、C)Music Center: SA- VK71D (GC) Front Speakers: SB- VK61 (GC2) Center Speaker: SB- PC81B (GC) x 1 Surround Speakers: SB- PS81B (GC) x 2 SC- VK71D (GS)Music Center: SA- VK71D (GS) Front Speakers: SB- VK61 (GC2) Center Speaker: SB- PC81B (GC) x 1 Surround Speakers: SB- PS81B (GC) x 2 SB- PT81B GC- S co

14、nsists of SB- PS81B GC (x 2) Typically the melting point is 50 -70F (30 -40C) higher. Please use a high temperature soldering iron. In case of soldering iron with temperature control,please set it to 700 20F (370 10C). Pb free solder will tend to splash when heated too high (about 1100F/600C). When

15、soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the soldering points with the Pb free solder until it melts enough. 6 SA-VK71DGC / SA-VK71DGS 8 Cautions to be taken when handling Optical Pickup The laser diode used inside optical p

16、ickup could be destroyed due to static electricity as a potential difference is caused by electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destructionduring repair. 8.1. Handling Optical Pickup 1. Do not impact on optical pickup as the uni

17、t structurally uses an extremely precise technology. 2. Short- circuit the flexible cable of optical pickup remove from the circuit board using a short- circuit pin or clip in order to prevent laser diode from electrostatic destruction (Refer to Fig. 8.1 and Fig. 8.2) 3. Do not handle flexible cable

18、s forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 8.1) 4. A new optical pickup is equipped with an anti- static flexible cable. After replacing and connecting to the flexible board, cut the anti- static flexible cable. (Refer to Fig. 8.1) Fig. 8.1 8.2. Replacing Precau

19、tions for Optical Pickup Unit DVD/CD Optical Pickup The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, beforeco

20、nnecting. (Please remove solder, when the short land short- circuits.) 8.3. Grounding for Preventing Electrostatic Destruction 1. Human body grounding Use the anti- static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 8.2) 2. Work place grounding Place a co

21、nductive material (conductive sheet) or ironboard where optical pickup is placed. (Refer to Fig. 8.2) Note : Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes. Fig. 8.2 7 SA-VK71DGC / SA-VK71DGS 9 Precaution of Laser Diode Caution :

22、This product utilizes a laser diode with the unit turned ON, invisible laser radiation is emitted from the pick up lens. Wavelength : 662 nm(DVD)/785 nm(CD) Maximum output radiation power from pick up : 100 W/VDE Laser radiation from pick up unit is safety level, but be sure the followings: 1. Do no

23、t disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous. 2. Do not adjust the variable resistor on the pick up unit. It was already adjusted. 3. Do not look at the focus lens using optical instruments. 4. Recommend not to look at pick up lens for a long time. CA

24、UTION! THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. n Use of Caution Labels 8 SA-VK71DGC / SA-VK71DGS 10 Accessories Remote control AC cord (For GS only) AC cord (For GC TOC is

25、 unreadable or invalid disc is inserted. Disc Code F103Ilegal highlight positionDisc standard is possibly illegal when highlight is displayed. IIC Error F4FFForced initialization failure (Time out) F880Unsuitable task numberWhen a message arrives from not existing task F890A message is sent during A

26、V task transmissionDuring transmission of a message to AV task F891Unable to transmit a message to AV taskWhen transmission of a message to AV task starts F893DVD Module problemCheck for firmware version F894EEPROM failure F895Firmware compatibility problemCheck for firm version for Main QZZCWAT 20.

27、1.1. Head Azimuth Adjustment (Deck 1 / 2) Caution: Please replace both azimuth adjustment screw and springs simultaneously when readjusting the head azimuth. (shown in Fig. 2) Even if you wish to readjust the head azimuth without replacing the acrews and springs, a fine adjustment to theazimuth scre

28、w and spring. Please remove the screw- locking bond left on the head base when replacing the azimuth screw. If you wish to readjust the head azimuth, be sure to adjust with adhering the cassette tape closely to the mechanism by pushing the center of cassette tape with your finger. (shown in Fig. 3)

29、1. Playback the azimuth adjustment portion (8 kHz, - 20dB) of the test tape (QZZCFM) in the forward play mode. Vary the azimuth adjustment screw until the output of the R- CH (PB OUT- R) are maximized. 2. Perform the same adjustment in the reverse play mode. 3. After the adjustment, applyscrewlock t

30、o the azimuth adjusting screw. 20.1.2. Tape Speed Adjustment (Deck 1 / 2) 1. Set the tape edit button to “NORMAL” position. 2. Insert the test tape (QZZCWAT) to DECK 2 and playback (FWD side) the middle portion of it. 3. Adjust Motor VR (DECK 2) for the output value shown below. Adjustment target: 2

31、940 3060 Hz (NORMAL speed) 4. After alignment, assure that the output frequency of the DECK 1 FWD are within 60 Hz of the value of the output frequency of DECK 2 FWD. Fig. 1 20.1.3. Bias and Erase Voltage Check 1. Set the unit “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and

32、the unit to “REC” mode (use “l REC/STOP” key). 3. Measure and make sure that the output is within the standard value. Bias voltage for Deck 2144mV (Normal) Erase voltage for Deck 280mV (Normal) Fig. 2 Fig. 3 20 Measurements and Adjustments 68 SA-VK71DGC / SA-VK71DGS 20.1.4. Bias Frequency Adjustment

33、 (Deck 1 / 2) 1. Set the unit to “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and set the unit to “REC” mode (l use “REC/STOP” key). 3. Adjust L1002 so that the output frequency is within the standard value. Standard Value: 97 8 kHz 1. Connect the instrument as shown in Fig.

34、5. 2. Set the unit to AM mode. 3. Apply signal as shown in Fig. 5 from AM- SG. 4. Adjust Z102 so that the output frequency is maximized in Fig. 6. Fig. 5 Fig. 6 20.2.2. AM RF Adjustment 1. Connect the instrument as shown in Fig. 7. 2. Set the unit to AM mode. 3. Set AM- SG to 520kHz. 4. Receive 520k

35、Hz in the unit. 5. Adjust Z101 (OSC) so that the EVM- AC is maximized. 6. Set AM- SG to 600Hz. 7. Receive 600Hz in the unit. 8. Adjust Z101 (ANT) so that the EVM- SG is maximized. 9. Set AM- SG to 520kHz. 10. Receive 520kHz in the unit. 11. Adjust Z101 (OSC) so that the EVM- DC value is with 1.10.5V

36、. Fig. 4 Fig. 7 20.2. Tuner Section 20.2.1. AM-IF Alignment 69 SA-VK71DGC / SA-VK71DGS 20.3.1. Cassette Deck Section 20.3.2. Adjustment Point 20.3. Alignment Points 70 SA-VK71DGC / SA-VK71DGS 21 Block Diagram IC8271 C0GBF0000004 IC8251 C0GBG0000044 IC8051 C3ABPG000063 OPTICAL PICK UP UNIT ACTUATOR T

37、RACKING COIL FOCUS COIL HALL3 HALL3 HALL3 TURNTABLE R FG PS EC ECR 24232221 727976 24791011121314 MUTE3 MUTE12 LDCNT VIN3 VIN1 VIN2 OPIN+ BIAS1 9232 75147 181711121314 27 83 34 14812881 2,4,5,7,8, 10,11,13, 42,44,45, 47,48,50, 51,53 2226, 2935 15,39 1,2,4,5,7,8, 10,11,1315, 17,18,252, 254,256 217,22

38、0, 221,223,224, 226228, 230,233, 237,238 249,251 MDQ0MDQ15 MA0MA11 DQM0,DQM1 BA0,BA1 NWE,NCAS,NRAS,NCSM MCK MDQ0MDQ15 MA0MA11 LDQM,UDQM BA0,BA1 NWE,NCAS,NRAS,NCSM CLK ACT T- ACT T+ ACT F- ACT F+ A3 A2 A1 H1+ H1- H2+ H2- H3+ H3- H- VO3- VO3+ VO2+ VO2- VO1+ VO1- FG MUTE3 DRV1 DRV6 DRV8 DRV0 DAC1 PWM0

39、VHALF AD1 AD2 VCOF/AD4 COIL_W COIL_V COIL_U HU+ HU- HV+ HV- HW+ HW- H- SW FEED- FEED+ 15 1 2426LDIN, BIAS2, TRIN 140 20,21 234,232 1619 248,245, 244,240 38 243 28 166165 X8621 OSCO OSCI 139146 MOTOR DRIVE IC MOTOR DRIVE IC 64M SDRAM IC8001 MN2DS0003APH DV2.1 LSI 71 SA-VK71DGC / SA-VK71DGS HIGH FREQU

40、ENCY MODULATOR OPTICAL PICKUP UNIT DVD MODULATORCD MODULATOR B B B 12512913313013413513613713812612313113211011112478 Q8561 SWITCH 235 LD- IN 3.3V LD- OUT 155481312111076 LD T2 T1 MON F2 F1 RFN RFP T4 T3 GAIN H/L 11486102 LD F1 F E F2 MON LPC01 DRV3 AD0 VIN2 VIN1 LPC1 VIN8 VIN7 RFINN RFINP VIN4 VIN3

41、 DRV7 LPC02 VIN5 VIN9 VIN10 VIN6 LPC2 82 14 Q8562 SWITCH Q8551 SWITCH Q8552 QR8571 SWITCH (SUPPLY CONTROL) 143 SWITCH IC8611 C3EBGZ000001 5960 65 SCL SDA P9 P8 EEPROM IC (NOT SUPPLIED) IC8001 MN2DS0003APH DV2.1 LSI 72 SA-VK71DGC / SA-VK71DGS TO MAIN BLOCK D 6968 P3 P2 DSPCLK STATUS IC8691 C0JBAA0003

42、46 AND GATE LOGIC IC IC8111 C0CBCBD00018 POWER SUPPLY IC IC8695 C0JBAA000346 AND GATE LOGIC IC IC8605 C0EBA0000031 R 2518, 81 48,17, 16,9,10 11 A0A15 A16A20 XWE XOE XCE DQ0DQ15 2826 12 XRESET 2936, 3845 Q8605, Q8606 SWITCH RESET IC IC8601 C0EBE0000384 VOLTAGE DETECTING IC 2325,27,32, 33,36,37,3942,

43、46,47,50,51 22 EXADT0EXADT15 EXADR16EXADR20 NEXWE NEXOE NEXCE FDT0FDT15 30,43, 31,45, 21 5238192195, 197200, 203,204, 206208, 210212 73 NRST DAC1OUT DAC2OUT DAC3OUT DAC4OUT DAC5OUT 149151152156158 48 ZFLGA DATA4 ZFLAG 31 171 ADOUT3 55 P13 QR8420 AUDIO MUTING SWITCH IC8451 C0FBBK000036 A/D CONVERTER

44、IC8001 MN2DS0003APH DV2.1 LSI Q8560 SWITCH Q8550 SWITCH B CMD P1 70 C OUT 32 CR OUT 17 CB OUT 19 Y OUT1 25 PY OUT1 22 MIX OUT1 30 JK2802 VIDEO G C Y JK2801 S- VIDEO 5 Y IN 3 C IN 14 CR IN 12 CB IN 8 PY IN 2 VMUTE1 MIX OUT2 29 PY OUT2 21 Y PB PR Y OUT2 24 VMUTE WIDE Q2810 INVERTER SWITCH C9ZB00000377

45、 VIDEO BUFFER IC2809 16(20) VOUT7(8) MIXL(R) 14(13) VOUT1(2) FL(R) 12(11) VOUT3(4) SL(R) 10 VOUT5 CTR 9 VOUT6 SUBW RSTB 37 R DIN13 46 48 176 174 ADOUT02 MDO 33 58 P10 353634 MDI MC ML SCKI BCKIN 4038 LRCIN 41 575653163170 P11 P12 P15 DACCK SRCK 169 LRCK IC8651 RFKFMH81T161 16M FLASH ROM 73 SA-VK71DG

46、C / SA-VK71DGS B L1002 IC1004 C1AA00000612 R/P SELECT B 20(5) 24(23) NOR/CrO & HI/LO LOGIC LOGIC REC/PB RIPPLE REJECTION LOGIC L/H ALC 18(7) 1(2) 22(3) 21(4) 17(8) 106 1619 1415 13 911 32 4 Q1004, Q1005, Q1007 BIAS OSC CONTROL SWITCHING (BEAT PROOF/ RECH) Q1001,Q1003 Q6809 Q1014(Q1015) BUFFER AMP Q1

47、012 (Q1013) MUTING Q1016 DECK MUTING SWITCH Q1020 (Q1021) MUTING SWITCH DSPCLK 37 DVDCLK STATUS36 DVD_STA CMD 35 DVD_CMD SWITCH (REC:H) TO DVD BLOCK S951(MODE) S952(HALF) DECK1 89 INTERFACE Z971 S975(RECINH_F) S972(HALF) S971(MODE) S974(RECINH_R) DECK2 90 C2CBJG000460MICROPROCESSORIC6800 Q6835 SWITC

48、H DMT 51 Q2806 SWITCH 44 DVD_MUTE ZFLAG VOLUME JOG VR6800 75 VOL_B 76 VOL_A Z6800 REMOTE SENSOR 18 RMT WIDE 47 WIDE_I VMUTE 73 VMUTE Q6812, Q6811 SWITCH IC971 CNB13030R2AU PHOTO INTERRUPTOR PHOTO_2 32 PHOTO_1 31 Q6810, Q6816 SWITCH IC951 CNB13030R2AU PHOTO INTERRUPTOR REC 71 SWITCH Q6836 BP 33 M MOT

49、OR Q1017 MOTOR SWITCH Q6808 SWITCH (MOTOR) MOTOR 74 IC1001 AN7348S- E1 P.B. EQ/REC AMP/ ALC/TPS AMP DECK_H 34 D (DECK 2) ERASE HEAD (DECK 2) R/P HEAD LCH (DECK 1) P.B. HEAD LCH 74 SA-VK71DGC / SA-VK71DGS INB1(2) 63(64) 61(62) INA1(2) MIXL(R) AUX JK2803 Q2814 MUTING SWITCH Q2813 MUTING SWITCH LINE OUT C2CBJG000460MICROPROCESSORIC6800 Q1 SENSOR B POSITION 5 SP_A 10 65 SP_B 11 66 SP_C 12 67 SPEAN_A/D 17 94 8 IC2815 C1BB00000845 ASP IC TO DVD BLOCK D 100 PLAY_SW S2 PLAY 21 CHANGE_SW