Panasonic-SAAK630P-cs-sm 电路图 维修手册.pdf

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1、n AMPLIFIER SECTION RMS output power THD 10%, both channels driven 1 kHz (Low channel)75 W per channel (5 ) 10 kHz (High channel)70 W per channel (5 ) 80 Hz (Subwoofer channel)160 W (8 ) Total power output450 W FTC output power THD 10%, both channels driven 100 Hz- 3 kHz (Low channel)59 W per channe

2、l (5 ) 3 kHz- 10 kHz (High channel)57 W per channel (5 ) 50 Hz- 100 Hz (Subwoofer channel)130 W (8 ) Total FTC power362 W n FM/AM TUNER, TERMINALS SECTION Preset stationFM 15 stations AM 15 stations Frequency Modulation (FM) Frequency range 87.9 -107.9 MHz (200 kHz steps) 87.5 -108.0 MHz (100 kHz st

3、eps) Sensitivity2.5 V (IHF) S/N 26 dB2.2 V Antenna terminal(s)75 (unbalanced) 2004 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-AK630P SA-AK630PC Colour (K). Black Type Amplitude Modulation (AM) Frequency range520 -1710 kHz

4、(10 kHz steps) Sensitivity S/N 20 dB (at 1000 kHz)560 V/m Audio performance (Amplifier) Input sensitivity/Input impedance Aux250 mV,14.7 k Phone jack TerminalStereo, 3.5 mm (1/8”) jack n CASSETTE DECK SECTION Track system4 track, 2 channel Heads Record/playbackSolid permalloy head ErasureDouble gap

5、ferrite head MotorDC servo motor Recording systemAC bias 100 kHz Erasing systemAC erase 100 kHz Tape speed4.8 cm/s (1 7/8 ips) Overall frequency response (+3 dB, - 6 dB at DECK OUT) NORMAL35 Hz -14 kHz S/N ratio50 dB (A weighted) Wow and flutter0.18 % (WRMS) Fast forward and rewind timeApprox. 120 s

6、econds with C- 60 cassette tape n DISC SECTION Discs played 8 cm (3”) or 12 cm (5”) (1) CD- Audio (CD- DA) (2) CD- R/RW (CD- DA, MP3 formatted discs) CD Stereo System Specifications ORDER NO. MD0412589C1 A6 RadioFans.CN 收音机爱 好者资料库 (3) MP3 Bit rate MP332 kbps -320 kbps Sampling frequency MP332 kHz, 4

7、4.1 kHz, 48 kHz CD44.1 kHz Decoding16 bit linear Digital filter8 fs D/A converterMASH (1 bit DAC) Pickup Wavelength780 nm Beam SourceSemiconductor laser Audio output (Disc) Number of channels2 (Stereo) (FL,FR) n GENERAL Power SupplyAC 120 V, 60Hz Power consumption255 W Powerconsumptioninstandby mode

8、 0.38 W 1 Safety Precaution 4 1.1. Insulation Resistance Test 4 2 Before Repair and Adjustment 5 3 Protection Circuitry 5 4 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 5 5 Handling the Lead-free Solder 6 5.1. About lead free solder (PbF) 6 6 Handling Prec

9、autions For Traverse Deck 7 7 Precaution of Laser Diode 8 8 Accessories 9 9 Operation Procedures 10 10 Disassembly and Assembly of Main Component 12 10.1. Disassembly flow chart 12 10.2. Gear for servicing (jig) Information 13 10.3. Disassembly of Top Cabinet 14 10.4. Disassembly of CD Lid 14 10.5.

10、Disassembly of Rear Panel 16 10.6. Disassembly of CD Mechanism Unit 16 10.7. Disassembly of Main P.C.B. 17 10.8. Disassembly of Sub- Power P.C.B. 17 10.9. Disassembly of Power P.C.B. 18 10.10. Disassembly of Transformer P.C.B. 20 10.11. Disassembly of Front Panel Unit 20 10.12. Disassembly of Deck M

11、echanism Unit 21 Dimensions (W x H x D)250 x 330 x 341 mm (9- 27/32” x 13” x 13- 7/16”) Mass7.1 kg (15.7 lb.) Operating temperature range+5 to +35C (+41 to +95F) Operating humidity range5 to 90% RH (no condensation) n SYSTEM SC- AK630 (P)Music center: SA- AK630 (P) Speaker: SB- AK630 (P) Subwoofer:

12、SB- WAK630 (P) SC- AK630 (PC)Music center: SA- AK630 (PC) Speaker: SB- AK630 (P) Subwoofer: SB- WAK630 (P) Notes: 1. Specifications are subject to change without notice. Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer. 10.13. CD Mechanis

13、m Main Component Replacement Procedures 22 10.14. Replacement for the pinch roller ass 馳 and head block 35 10.15. Replacement for the Deck motor ass 馳, capstan belt A, capstan belt B and winding belt 35 10.16. Replacement for the cassette lid ass 馳 38 10.17. Rectification for tape jam problem 39 11

14、Checking for major P.C.Bs 40 11.1. Checking of Main P.C.B. 40 11.2. Checking of Transformer P.C.B. 41 11.3. Checking of Panel, Deck 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

15、 to 700 20F (370 10C). Pb free solder will tend to splash when heated too high (about 1100F/600C). When 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-AK630P

16、 / SA-AK630PC 6 Handling Precautions For Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup)

17、. Handling of traverse deck (optical pickup) 1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock. 2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board). 3. Tak

18、e care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish the job in as short time as possible. 4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted. Grounding for electrostatic breakdown preventio

19、n 1. Human body grounding Use the anti- static wrist strap to discharge the static electricity from your body. 2. Work table grounding Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground the sheet. Caution : The static electricit

20、y of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup). Caution when replacing the Traverse Deck The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown

21、. Be sure to remove the solder from the short point before making connections. 7 SA-AK630P / SA-AK630PC This unit utilizes a class 1 laser. Invisible laser radiation is emitted from the optical pickup lens. Wavelength: 780nm When the unit is turned on: n Use of caution label (Except for U.S.A.) 7 Pr

22、ecaution of Laser Diode CAUTION: 1. Do not look directly into the pick up lens. 2. Do not use optical instruments to look at the pick up lens. 3. Do not adjust the preset variable resistor on the pickup lens. 4. Do not disassemble the optical pick up unit. 5. If the optical pick up is replaced, use

23、the manufacturers specified replacement pick up only. 6. Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. CAUTION! THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER

24、THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. 8 SA-AK630P / SA-AK630PC 8 Accessories Remote Control FM Antenna AC Cord AM Loop Antenna 9 SA-AK630P / SA-AK630PC 9 Operation Procedures 10 SA-AK630P / SA-AK630PC 11 SA-AK630P / SA-AK630PC 10 Disassembly and Assembly of Main Com

25、ponent “ATTENTION SERVICER” Some chassis components may have sharp edges. Be careful when disassembling and servicing. 1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or re

26、placement, reverse the respective procedures. Special reassembly procedures are described only when required. 3. Select items from the following index when checks or replacement are required. 4. Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 23), if necess

27、ary. 10.1. Disassembly flow chart The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing. To assemble the unit, reverse the steps shown in the chart as below. 12 SA-AK630P / SA-AK630PC 10.2. Gear for servicing (jig)

28、Information 1. This unit has a gear which is used for checking items (Open/Close of disc tray, up/down operation of traverse unit by manually) when servicing. 2. For preparation of gear (for servicing), perform the procedures as follows. 3. In case of re- servicing the same set, the “gear for servic

29、ing” may has been taken off because it has been used. The “gear for servicing” must be stored. Remove the gear provided with mecha cover as shown below. Insert the hexagonal screwdriver (2mm) into the gear, and then project the tip of screwdriver for 1 2 mm in length. 13 SA-AK630P / SA-AK630PC Step

30、1 Remove 2 screws at each side and 5 screws at rear panel. Step 2 Lift up both sides of the top cabinet, push the top cabinet towards the rear and remove the top cabinet. Opening the disc tray automatically (Using Power Supply) Step 1 Connect the AC power cord. Step 2 Press the POWER button to power

31、 up the main unit. Step 3 Press the OPEN/CLOSE button, the disc tray will open automatically . Step 4 Release the 2 claws, and then remove the CD Lid. Step 5 Press the OPEN/CLOSE button, the disc tray will close. 10.3. Disassembly of Top Cabinet 10.4. Disassembly of CD Lid (The CD changer unit can b

32、e removed after the CD Lid is removed) Follow the (Step 1) -(Step 2) of Item 10.3 -Disassembly of Top Cabinet 14 SA-AK630P / SA-AK630PC Step 6 Press the POWER button to turn the power off. Opening the disc tray manually (Using service tools) Step 1 Insert the gear tool into the hole on the underside

33、 of CD chassis and then rotate in the direction of arrow. The disc tray will be opened. Step 2 Release the 2 claws, and then remove the CD lid cover. Step 3 Repeat Step 2 but rotate the gear tools in anti- clockwise direction. Step 4 The disc tray will be closed. 15 SA-AK630P / SA-AK630PC Step 1 Rem

34、ove 7 screws and disconnect wire CN2810 (Fan) at rear cabinet as shown. Step 1 Remove one screw at rear panel. Step 2 Detach the FFC wires (CN2801 QZZCWAT 14.1.1. 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 playba

35、ck (FWD side) the middle portion of it. 3. Adjust Motor VR (DECK 2) for the output value shown below. Adjustment target: 2940 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 14.1.

36、2. Bias and Erase Voltage Check 1. Set the unit “AUX” position. 2. Insert the Normal blank tape (QZZCRA) into DECK 2 and the unit to “REC” mode (use “l REC/STOP” key). 3. Measure and make sure that the output is within the 1. Connect the instrument as shown in Fig.5. 2. Set the unit to AM mode. 3. A

37、pply signal as shown in Fig. 5 from AM- SG. 4. Adjust Z2602 so that the output frequency is maximized in Fig. 6. standard value. Bias voltage for Deck 2144mV (Normal) Erase voltage for Deck 280mV (Normal) Fig.2 Fig.3 14.1.3. Bias Frequency Adjustment (Deck 1/2) 1. Set the unit to “AUX” position. 2.

38、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 Fig.4 Fig.5 14 Measurements and Adjustments 14.2. Tuner Section 14.2.1. AM-IF Alignment 49 SA-A

39、K630P / SA-AK630PC Fig.6 14.2.2. 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 520kHz in the unit. 5. Adjust Z2602 (OSC) so that the EVM- AC is maximized. 6. Set AM- SG to 600Hz. 7. Receive 600Hz in the unit. 8. Adjust

40、Z2602 (ANT) so that the EVM- SG is maximized. 14.3.1. Cassette Deck Section 14.3.2. Tuner Section 9. Set AM- SG to 520kHz. 10. Receive 520kHz in the unit. 11. Adjust L2602 (OSC) so that the EVM- DC value is with 1.10.5V. Fig.7 14.3. Alignment Points 50 SA-AK630P / SA-AK630PC 15 Block Diagram T- T+ F

41、+ F- PHOTO DETECTOR OPTICAL PICKUP SEMICONDUCTOR LASER Q7601 LASER POWER DRIVE M7302 SPINDLE MOTOR RESET SIGNAL GENERATOR FOCUS COIL DRIVE TRACKING COIL DRIVE TRAVERSE MOTOR DRIVE SPINDLE MOTOR DRIVE MUTE CH2 FOCUS COIL TRACKING COIL D4+17 D4-16 D3+15 D3-14 D1+11 D1-10 D2+13 D2-12 4PC2 3IN2 6IN1 24I

42、N3 23IN4 1 /RST NC 18 5 NC 2 NC B B B B IC7003 AN8739SBTE2 FOCUS COIL/TRACKING COIL/ TRAVERSE MOTOR/ SPINDLE MOTOR DRIVE M7301 TRAVERSE MOTOR E F B A LPD LD C D SPPOL SPOUT TRVP TRP FOP B B A B F E M M 51 SA-AK630P / SA-AK630PC MN6627953HB SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR/ DIGITAL FILTER/ D/

43、A CONVERTER TO MAIN BLOCK IC7002 NTEST60 IOMODE59 NRST68 TIMING GENERATOR 71 X1 70 X2 (SMCK) (PMCK) MICRO COMPUTER INTERFACE 66 STAT 65 MLD 63 MCLK 64 MDATA DSL/PLL/VCO 44 ARFIN 46 IREF 45 DSLF 47 PLLF 48 PLLF0 SUBCODE INTERFACE 43 AVSS2 49 AVDD2 67BLKCK 74 TXTD 73 DQSY (SBCK) (SUBC) (TXNCLDCK) 62 F

44、LAG 1 EXT0 EFM DEMODULATION SYNC INTERPOLATION CIRC ECC CDROM ECC CIRC RAM 1 MBIT SRAM BUS CONTROL UNIT SPINDLE SERVO SERVO CPU RF INTERFACE RF AMPLIFIER INPUT PORT RFVDD37 VREF27 A,B,C,D,E,F3035 A, B, C, D, E, F CEA21 LD29 LD PD28 LPD DCDET36 CAGC41 2 EXT1 3 EXT2 76 GIO0 77 GIO1 78 GIO2 75TXTCK POR

45、T ARF RFOUT39 RFIN40 FEN24 TEN25 FEOUT23 TEOUT26 (LRCK) (BCLK) (SRDATA) SERIAL OUTPUT INTERFACE REGULATOR LON (DVDD2) MP3/WMA DECODER FS CONVERTER DIGITAL FILTER 1 BIT DAC PWM LOGIC ANALOG LOWPASS FILTER RFENV22 A/D CONVERTER ADPVCC18 FEIN20 TEIN19 RFENV22 OUTPUT PORT PWMSEL4 SPPOL6 SPPOL SPOUT5 SPO

46、UT TRVP7 TRVP TRVM 8 TRVP2 9 TRVM2 10 TRP11 TRP TRM 12 FOP13 FOP FOM 14 IOVDD13 15, 56, 72 DVDD1,2 16, 57 DVSS13 17, 55, 69 DIGITAL OUT TX 61 OUTL 50 OUTR 54 AVDD1 53 AVSS1 51 (LRCKIN) (BCLKIN) (SRDATIN) CD_RST STAT MLD MCLK MDATA BLKCK CD SIGNAL RCH A B B B B B B B FILTER B B B B B B X7201 52 SA-AK

47、630P / SA-AK630PC IC2601 LA1833NMNTLM FM/AM IF AMP, DET/AM OSC, MIX/FM MPX SD ST SHIFT REGISTER LATCH 1 2 SWALLOW COUNTER 1/6,1/17,4 BITS 12 BITS PROGRAMMABLE DIVIDER REFERENCE DIVIDER C2B I/F PLLCLK PLLDA ST/DO CE X2603 ST/DO SD S- CURVE REG FM IF FM DET AM OSC LEVEL DET BUFFER ALC DECODER STEREO S

48、WITCH AM DET AM IF TUNING DRIVE AM/FM IF BUFFER COMP FFFF VCO AM MIX AM RM AMP AGC PHASE DET PILOT DET FF PILOT CANCEL (FM) TUNER 15V SUPPLY SWITCH Q2606 POWER ON RESET UNIVERSAL COUNTER UNLOCK DETECTOR PHASE DETECTOR CHARGE PUMP TO CD DRIVE BLOCK LC72131MDTRM PLL FREQUENCY SYNTHESIZER IC2602 X2602

49、16 17 18 11 15 19107698 4CL 3DI 2CE 5DO 13 12 14 20 1 L2602 D2602 L2601 232422212019181716141513 123465789101112 FM IF AMP Q2601 REG B B B B B RCH A B CF2601CF2602 B FM ANT Z2620 8 (FM) MIXER OSCBUFFER Q1 (RF AMP) 6 5 17 Q2 Q3Q4 AM IFT Z2602 AM ANT 53 SA-AK630P / SA-AK630PC MOTOR DRIVE C0GAM0000005 IC1 REG MLD MCLK CE MDATA SD CD_RST SWITCH BLKCK PLLCLK ST/DO PLLDA Q2906 STAT Q2907 RM1 SWITCH C0HBB0000039 FL DRIVER IC6601 S7201 SW5 LOAD SW4 CD SW2 PUSH