Panasonic-SAPM21E-cs-sm 电路图 维修手册.pdf

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1、n Amplifier Section RMS Output Power both channel driven 10% Total harmonic distortion 1 kHz (Low channel)15 W per channel (6 ) 8 kHz (High channel)5 W per channel (6 ) Total Bi-Amp power20 W per channel Output impedance Headphone16 - 32 n FM Tuner Section Frequency range87.50 -108.00 MHz (50 kHz st

2、ep) Sensitivity1.5 V (IHF) S/N 26 dB1.25 V Antenna terminals75 (unbalanced) n AM Tuner Section Frequency range522 - 1629 kHz (9 kHz steps) 520 - 1630 kHz (10 kHz steps) Sensitivity S/N 20 dB (at 999 kHz)500 V/m n Cassette Deck Section Track system4 track, 2 channel Heads Record/playbackSolid permall

3、oy head 2005 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-PM21E SA-PM21EB SA-PM21EG Colour (S). Silver Type ErasureAC erase head MotorDC servo motor Recording systemAC bias 100 kHz Erase systemAC erase 100 kHz Tape speed4.8

4、cm/s Overall frequency response (+3 dB, -6 dB) at DECK OUT NORMAL35 Hz - 14 kHz S/N RATIO50 dB (A weighted) Wow and flutter0.08% (WRMS) Fast forward and rewind timeApprox. 120 seconds with C-60 cassette tape n CD Section Disc played CD/MP3/CD-R/RW8cm/12cm Bit rate MP332kbps - 320kbps Sampling freque

5、ncy CD44.1 kHz MP332 kHz, 44.1 kHz, 48 kHz Decoding16 bit linear Pickup Beam source / wavelengthSemiconductor laser / 780nm Number of channelsStereo Wow and flutterBelow measurable limit Digital filter8 fs CD Stereo System Specification ORDER NO. MD0501014C2 RadioFans.CN 收音机爱 好者资料库 D/A converterMASH

6、 (1 bit DAC) Frequency response20Hz - 20 kHz (+1, -2dB) n General Power supplyAC 230 V, 50 Hz (E,EG) AC 230 - 240 V, 50 Hz (EB) Power consumption62 W Dimensions (W x H x D)165 mm x 228 mm x 315.6 mm Mass3.8 kg Powerconsumptioninstandby mode 0.8 W 1 Safety Precautions 4 1.1. GENERAL GUIDELINES 4 2 Ca

7、ution for AC Mains Lead 5 3 Before Repair and Adjustment 6 4 Protection Circuitry 6 5 Handling the Lead-free Solder 6 5.1. About lead free solder (PbF) 6 6 Precaution of Laser Diode 7 7 Handling Precautions For Traverse Deck 8 8 Accessories 9 9 Operation Procedures 10 10 Information on CD Typically

8、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 soldering or unsoldering, please com

9、pletely 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-PM21E / SA-PM21EB / SA-PM21EG 6 Precaution of Laser Diode Caution : This product utilizes a laser diode with the unit turned ON, invisible laser r

10、adiation is emitted from the pick up lens. Wavelength : 780 nm 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 not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.

11、 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. ACHTUNG : Dieses Produkt enthlt eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Las

12、erstrahlung von der Lasereinheit abgestrahlt. Wellenlnge : 780nm Maximale Strahlungsleistung der Lasereinheit :100W/VDE Die Strahlung an der Lasereinheit ist ungefhrlich, wenn folgende Punkte beachtet werden: 1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefhrli

13、ch ist. 2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen. 3. Nicht mit optischen Instrumenten in die Fokussierlinse blicken. 4. Nicht ber lngere Zeit in die Fokussierlinse blicken. ADVARSEL : I dette a apparat anvendes laser. CAUTION! THIS PRODUCT UTILIZES A LASER. USE OF

14、 CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. n Use of Caution Labels 7 SA-PM21E / SA-PM21EB / SA-PM21EG The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by st

15、atic electricity of clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup). l Handling of CD traverse deck (optical pickup) 1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electri

16、cal shock. 2. The short land between the No.4 (LD) and No.5 (GND) pins on the flexible board (FFC) is shorted with a solder build-up to prevent damage to the laser diode. 3. Take care not to apply excessive stress to the flexible board (FFC board) (Fig 7.1). 4. Donotturnthevariableresistor(laserpowe

17、r adjustment). It has already been adjusted. Fig 7.1 l Grounding for electrostatic breakdown prevention 1. Human body grounding (Fig 7.2) Use the anti-static wrist strap to discharge the static electricity from your body. 2. Work table grounding (Fig 7.2) Put a conductive material (sheet) or steel s

18、heet on the area where the traverse deck (optical pickup) is placed, and ground the sheet. Caution : The static electricity 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). Fig 7.2 Caution when Replacing the

19、 Optical Pickup : The traverse has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to remove the solder from the short point before making connections. 7 Handling Precautions For Traverse Deck 8 SA-PM21E / SA-PM21EB / SA-PM21EG 8 Accessories Rem

20、ote control AC cord (For EB only) AC cord (For E 4 + 7 5Cold Start SettingSLEEP Note: If entering Doctor Mode by numeric buttons, PRESET EQ and SURROUND will be set to OFF. In case of error, all the segments of FL will blink (0.5 sec ON/OFF) and Doctor Mode shall be retained. The operation key used

21、for the test follows closely with the test items as far as possible to facilitate quick testing to be carried out. The STOPn key on the remote controller when used in any test mode will end the current test operations. All keys mentioned to initiate Doctor Modes test items refer to remote controller

22、 keys, unless otherwise mentioned. When plugging out from Doctor Mode and then plugging in back. It will reset start. The test cancellation special key 0 will end the current test operations but it will remain in Doctor Mode. When used, the display shows the word CANCEL for 2sec, and then returns to

23、 Doctor Mode display. 13.4.2. CD Unit Loading Test (Reliability test 1) Putpose : To test CD Unit Loading (OPEN / CLOSE aging test) function. The following operation will be carried out. Procedures : 1. Enter into doctor mode (Refer to section 13.4) 2. Press 10 followed by 1 H: Tri-State 5SPOUTOSpin

24、dle driver output signal 6SPPOLOSpindle driver output signal 7TRVPOSpindle driver output signal 8TRVMOSpindle driver output signal 9TRVP2OTraverse driver output signal 2 (+) 10TRVM2OTraverse driver output signal 2 (-) 11TRPOTraverse driver output signal (+) 12TRMOTraverse driver output signal (-) 13

25、FOPOTraverse driver output signal (+) 14FOMOTraverse driver output signal (-) 15IOVDD3-I/O power supply 3 16DVDD1-Power supply 1 for digital circuit 17DVSS1-Digital circuit GND 1 18ADPVCCIPower voltage monitor. Power voltage input 19TEINIDSP traverse error signal input 20FEINIDSP focus error signal

26、input 21CEAI/OHPF-Amp capacitance connection terminal 22RFENVORF envelope signal monitor 23FEOUTOFE Amp output 24FENIFE Amp reversal input 25TENITE Amp reversal input 26TEOUTOTE Amp output 27VREFOVREF output 28PDIAPC Amp input 29LDOAPC Amp output 30EITracking input signal 1 31FITracking input signal

27、 2 32DITracking input signal 4 33BITracking input signal 2 34CITracking input signal 3 35AIFocus input signal 1 36DCDETIDetection HPF capacitance terminal 37RFVDD-RF Amp power supply 38RESERVE-AVSS2 Pin No.MarkI/OFunction 1IN2IMotor Driver Input 2PC2ITurntable Motor Drive Signal (“L”: ON) 3IN1IMotor

28、 Driver (1) Input 4PC1-Traverse Motor Drive Signal (“L”:ON) 5N.C.-No Connection Pin No.MarkI/OFunction 39RFOUTORF Amp output 40RFINIAGC input 41CAGCI/OAGC control terminal 42ARFOUTOAGC output (Audio RF) 43AVSS2-Analog circuit GND 2 44ARFINIRF signal input 45DSLFODSL loop filter 46IREFII (current), R

29、eference input 47PLLFOPLL loop filter 48PLLF0OPLL loop filter 49AVDD2-Analog circuit power supply 2 50OUTLOLCH output signal 51AVSS1-Audio output circuit GND 1 52N.C.-No Connection 53AVDD1-Power supply 1 for analog circuit 54OUTRORCH output signal 55DVSS2-Digital circuit GND 2 56IOVDD1-I/O power sup

30、ply 1 57DVDD2-Power supply 2 for Digital circuit 58REGONILaser diode control (H: ON) 59IOMODEII/O switching setting input 60NTESTITest mode setting input (H: ON) 61TXODigital audio interface output 62FLAGOFlag signal output 63MCLKIMicro-P serial command CLK 64MDATAIMicro-P serial command DATA 65MLDI

31、Micro-P serial command LOAD 66STATOStatus signal output 67BLKCKOSubcode block clock 68NRSTILSI reset input (L: RESET) 69DVSS3-Digital circuit GND 3 70X2OCrystal oscillator circuit output 71X1ICrystal oscillator circuit input 72IOVDD2II/O power supply 2 73DQSYOPack signal output for CD- Text data 74T

32、XTDOCD Text signal output 75TXTCKIExternal clock signal input for CD-Text register 76GIO0I/OGeneral purpose input/output Terminal 0 77GIO1I/OGeneral purpose input/output Terminal 1 78GIO2I/OGeneral purpose input/output Terminal 2 79GOUT0OGeneral purpose output Terminal 0 80GOUT1OGeneral purpose outp

33、ut Terminal 1 Pin No.MarkI/OFunction 6N.C.-No Connection 7N.C.-No Connection 8N.C.-No Connection 9PGND1-Ground Connection (1) for Driver 10PVCC1IPower Supply (1) for Driver 23 Terminal Function of ICs 23.2. IC703 (BA5948FPE2) IC 4CH DRIVE 74 SA-PM21E / SA-PM21EB / SA-PM21EG Pin No.MarkI/OFunction 11

34、D1-OMotor Driver (1) reverse - action output 12D1+OMotor Driver (1) forward - action output 13D2-OMotor Driver (2) reverse - action output 14D2+OMotor Driver (2) forward - action output 15D3-OMotor Driver (3) reverse - action output 16D3-OMotor Driver (3) forward - action output 17D4-OMotor Driver (

35、4) reverse - action output Pin No.MarkI/OFunction 1VREF-A/D Converter Reference GND 2KEY 1IKey 1 Input 3KEY 2IKey 2 Input 4MK_IN1IMech Condition Input1 (Mode and TPS) 5MK_IN2IMech Condition Input2 (Half and RECINF) 6PDETIPower Detect 7DESIDestination Setting 8N.C.-No Connection 9N.C.-No Connection 1

36、0VREF +-A/D Converter Reference Volt 11VDD-Power Input Pin 12OSC 2OMain Oscillator Output 13OSC 1IMain Oscillator Input 14VSS-GND 15XIISuboscillator Input 16XOOSuboscillator Output 17GND-Memory Mode Selection 18N.C.-No Connection 19RDS_DATAI/ORDS IC CTRL 20RDS_CLKI/ORDS CLK In 21CD_MDATAI/OCD LSI Co

37、mmand Data 22CD_STATI/OCD Status Input 23CD_MCLKI/OCD LSI Command Clock 24N.C.-No Connection 25PCONT1I/OPower Control Output1 (PWR SPLY, Active High) 26RM INIRemocon Input 27HALTIAC Failure Detect Signal 28CD_OPSICD Open (L: Open, P: Close) 29RESTSWICD Tranverse Limit SW 30BLKCKICD Subcode Block Clo

38、ck Input 31N.C.-No Connection 32N.C.-No Connection 33MICOM RSTIMicom Reset (L: Reset) 34N.C.-No Connection 35CD RESETI/OCD Reset Output 36CD_MLDI/OCD LSI Command Load 37N.C.-No Connection 38N.C.-No Connection 39N.C.-No Connection 40FL_RSTI/OFL Reset Output 41FL_CSI/OFL CS Output 42FL_DATAI/OFL Data

39、Output 43N.C.-No Connection 44FL_CLKI/OFL Clock Output 45TU_SDAI/OIIC Data Line For Tuner 46N.C.-No Connection 47TU_CLI/OIIC Clock Signal For Tuner 48N.C.-No Connection Pin No.MarkI/OFunction 18D4+OMotor Driver (4) forward - action output 19PVCC2-Power Supply (2) for Driver 20PGND2-Ground Connection

40、 (2) for Driver 21N.C.-No Connection 22N.C.-No Connection 23N.C.-No Connection 24N.C.-No Connection 25VCCIPower Supply Terminal 26VREFIReference Voltage Input 27IN4IMotor Driver (4) Input 28IN3IMotor Driver (3) Input Pin No.MarkI/OFunction 49PCONT2I/OPower Control Output2 (PWR AMP, active H) 50DEMO

41、SETTING I/ODemo Mode Setting (H: OFF, L: ON) 51N.C.-No Connection 52HP_SWI/OHeadphone Detect SW Input 53MUTE AI/OAudio Mute O/P (L: Mute On) 54N.C.-No Connection 55N.C.-No Connection 56ASP_CLKI/OASP CLK O/P 57ASP_DATI/OASP Data O/P 58N.C.-No Connection 59N.C.-No Connection 60N.C.-No Connection 61EDA

42、TAI/OEeprom Data In/Out 62ECLKI/OEeprom Clock Output 63ECSI/OEeprom CS Output 64N.C.-No Connection 65TU_TUNEDI/OTuner Tuned Signal 66TU_STI/OTuner Stereo Signal 67N.C.-No Connection 68N.C.-No Connection 69N.C.-No Connection 70MOTOR_HI/ODeck Motor Control Out (H: ON) 71PL_HI/ODeck Plunger Control Out

43、 (H: On) 72N.C.-No Connection 73N.C.-No Connection 74TAPE_EJI/OTape Eject SW I/P (L: SW On) 75PHOTO_1I/ODeck Photo SW Input 76RECHI/ODeck Rec Control Output (Active High) 77N.C.-No Connection 78DMTI/ODeck Mute Output (L: Mute On) 79N.C.-No Connection 80N.C.-No Connection 81N.C.-No Connection 82N.C.-

44、No Connection 83N.C.-No Connection 84N.C.-No Connection 85N.C.-No Connection 86N.C.-No Connection 87N.C.-No Connection 88N.C.-No Connection 89N.C.-No Connection 90N.C.-No Connection 91N.C.-No Connection 92CRTIMERI/OCR Timer 93N.C.-No Connection 94S/W RSTI/OTest Mode On/Off (H: On) 95VREF -D/A Conver

45、ter Reference GND 23.3. IC803 (MN101C49GHA) MICRO PROCESSOR 75 SA-PM21E / SA-PM21EB / SA-PM21EG Pin No.MarkI/OFunction 96JOG 1IJog Input 1 97JOG 2IJog Input 2 98CLOSE_LI/OCd Tray Close Control (Avtive L) 99OPEN_HI/OCD Tray Open Control (Active H) 100VREF +-D/A Converter Reference Voltage 76 SA-PM21E

46、 / SA-PM21EB / SA-PM21EG 24 Troubleshooting Flowchart (CD Section Circuit) 77 SA-PM21E / SA-PM21EB / SA-PM21EG 78 SA-PM21E / SA-PM21EB / SA-PM21EG Notes: 25 Parts Location and Replacement Parts List Important safety notice: Components identified bymark have special characteristics important for safe

47、ty. Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise (resistors), etc are used. When replacing any of these components, be sure to use only manufacturers specified parts shown in the parts list. The parenthesized indications in

48、the Remarks columns specify the areas or colour. (Refer to the cover page for area or colour) Parts without these indications can be used for all areas. Warning: This product uses a laser diode. Refer to Precaution of Laser Diode. ACTUNG: Die Lasereinheit nicht zerlegen. Die Lasereinheit darf nur ge

49、gen eine vom Hertsteller spezifizierte Einheit ausgetauscht werden. Capacitor values are in microfarads (F) unless specified otherwise, P= Pico-farads (pF), F= Farads. Resistance values are in ohms, unless specified otherwise, 1K=1,000 (OHM). The marking (RTL) indicates that the Retention Time is limited for this items. After the discontinuation of this assembly in production, the item will continue to be available for a specific period of time. The retention period of a availability is dependent on the type of