Panasonic-SAPM31P-cs-sm 电路图 维修手册.pdf

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1、n Amplifier Section Power output 10% Total harmonic distortion 60 Hz - 3 kHz, both channels driven (Low channel)35 W per channel (6 ) 3 kHz - 16 kHz, both channels driven (High channel)35 W per channel (6 ) Total Bi-Amp power70 W per channel Power output 10% Total harmonic distortion 1 kHz, both cha

2、nnels driven (Low channel)40 W per channel (6 ) 8 kHz, both channels driven (High channel)40 W per channel (6 ) Total Bi-Amp power80 W per channel Output Impedance Headphone16 - 32 n FM Tuner Section Frequency range87.5 MHz - 108.0 MHz (100 kHz steps) 87.9 MHz - 107.9 MHz (200 kHz steps) Sensitivity

3、1.02 V (IHF) S/N 26 dB1.00 V Antenna terminal(s)75 (unbalanced) 2004 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-PM31P SA-PM31PC Colour (S). Silver Type n AM Tuner Section Frequency range520 kHz - 1710 kHz (10 kHz steps) Se

4、nsitivity S/N 20 dB (at 1000 kHz)900 V/m n Cassette Deck Section Track system4 track, 2 channel Heads Record/playbackSolid permalloy head ErasureDouble gap ferrite head MotorDC servo motor Recording systemAC bias 100 kHz Erasing systemAC erase 100 kHz Tape speed4.8 cm/s Overall frequency response (+

5、3 dB, -6 dB at DECK OUT) NORMAL (TYPE I)35 Hz - 14 kHz S/N RATIO42.64 dB (A weighted) Wow and flutter0.08% (WRMS) Fast forward and rewind timeApprox. 120 seconds with C-60 cassette tape n CD Section Disc CD Stereo System Specification ORDER NO. MD0412578C1 A6 RadioFans.CN 收音机爱 好者资料库 CD, CD-R, CD-RW,

6、 MP38 cm/12 cm (3-3/20” / 4- 73/100”) Sampling frequency44.1 kHz Decoding16/20/24 bit linear Beam source/wavelengthSemiconductor laser / 780 nm Number of channelsStereo Frequency response20 Hz - 20 kHz (+1dB, -2dB) Wow and flutterBelow measurable limit Digital filter8 fs D/A converterMASH (1 bit DAC

7、) MP3 Bit rate32 kbps - 320 kbps Sampling frequency32kHz, 44.1kHz, 48kHz n General Power supplyAC 120 V, 60 Hz 1 Safety Cautions 4 1.1. GENERAL GUIDELINES 4 2 Before Repair and Adjustment 5 3 Protection Circuitry 5 4 Handling the Lead-free Solder 5 4.1. About lead free solder (PbF) 5 5 Precaution of

8、 Laser Diode 6 6 Handling Precautions For Traverse Deck 7 7 Accessories 8 8 Operating Procedures 9 9 Assembling and Disassembling 11 9.1. Disassembly flow chart 11 9.2. Disassembly of Side Panel L Typically the melting point is 50 - 70F (30 - 40C) higher. Please use a high temperature soldering iron

9、. 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 completely remove all of the solder on the pins or solder area, and be sure to heat the solderin

10、g points with the Pb free solder until it melts enough. 5 SA-PM31P / SA-PM31PC This unit utilizes a class 1 laser. Invisible laser radiation is emitted from the optical pickup lens. When the unit is turned on: n Use of caution label (Except for U.S.A.) 5 Precaution of Laser Diode CAUTION: 1. Do not

11、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 the manufacturers specified replacement pic

12、k 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 THAN THOSE SPECIFIED HEREIN MAY RESULT IN H

13、AZARDOUS RADIATION EXPOSURE. 6 SA-PM31P / SA-PM31PC 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). l

14、 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 electrical 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 pre

15、vent damage to the laser diode (Fig 1). 3. Take care not to apply excessive stress to the flexible board (FPC board). 4. Donotturnthevariableresistor(laserpower adjustment). It has already been adjusted. Fig 1 l Grounding for electrostatic breakdown prevention 1. Human body grounding (Fig 2) Use the

16、 anti-static wrist strap to discharge the static electricity from your body. 2. Work table grounding (Fig 2) Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, and ground the sheet. Caution : The static electricity of your clothes will no

17、t be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup). Fig 2 Caution when Replacing the Optical Pickup : The traverse has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to remove t

18、he solder from the short point before making connections. 6 Handling Precautions For Traverse Deck 7 SA-PM31P / SA-PM31PC 7 Accessories AC power cord FM indoor antenna AM loop antenna Remote control Note : Refer to Packaging Materials It displays it. When the operation which enters the doctor mode i

19、n the doctor mode is done, version No. of EEPROM; It is (DEC display) and a check sum (HEX display). 1. Doctor mode ON. 2. pressing C2DF The following are displayed CHECKSUM CHK-EA Note: Version/check sum displays . . . . . . CHK-NO when display when judged that there is EEPROM, and judged it not is

20、. It returns to the doctor mode display of usually by the operation which enters the doctor mode of usually by the operation which enters the doctor mode again with the check sum displayed. (The display does not return by the time limitation) 11.1.4. Cold start setting 1. Doctor mode ON. 2. Press 4

21、button on the remote control. Data shall be set in order to make a cold start (backup data are initialized) when reset starts next time. To clarify that the code was accepted at this time, the pattern below is displayed in the LCD for 2 seconds. 50 SA-PM31P / SA-PM31PC (Note) In the case that you un

22、plug from AC outlet after this mode was set, then plug to AC again, a cold start shall begin. And “- - - - - - - - -” is displayed in the FL for 2 seconds. 11.2. Clearing Self-Diagnostic Memory (F15, F17, F22, F26, F27, F28, F29) 1. Enter into self-diagnostic mode. 2. Errors are stored in the unit m

23、emory. To clear memory, press and hold down STOPn/-DEMO” button for 5 seconds or more during self-diagnostic mode. The message, “CLEAR” appears on the display when memory is erased, and the unit displays the message, “T”. Memory is not affected by turning off the power or unplugging the socket. Be s

24、ure to clear memory after repair is completed. 3. Press STOPn/-DEMO” button. A symbol of self-diagnostic is indicated on the display if an error is found. If several errors are found, a respective indication is displayed when STOPn/-DEMO button is pressing repeatedly. (e.g. H01 CD F15 F01) If no err

25、or is found, only T indication is displayed and remains unchange even if STOPn/-DEMO button is pressed. 11.3. Displaying Self-Diagnostic Results (H01, H02, H03, F01, F02) 1. Enter the self-diagnostic mode, following the instructions described in 11.1.1 Setting of the Self-Diagnostic Mode (Test Mode)

26、. 2. Insert a normal-positioned music tape with erase prevention niches on both Sides A and B. Press TAPE button to activate the TPS operation so that the tape automatically stops at an interval between music selections. 3. Press STOPn/-DEMO and TAPE buttons together on the remote controller. (Recor

27、ding does not start.) 4. Then, insert a Cr02-positioned blank cassette tape with an erase prevention niche of Side A or B set to the left side. 5. Press /FF/ button. The tape will be forwarded and automatically stop after two seconds. 6. Remove the cassette tape, and set the other side. 7. Press /RE

28、W/ button. The tape will be rewound and automatically stops after two seconds. 8. Press STOPn/-DEMO button on the unit. If an error is found, a self-diagnostic key appears on the display. If several errors are found, the display shows these keys when STOPn/-DEMO button is pressed repeatedly. (Ex.: H

29、01 - H02 - F01 - H01) If no error is found, only the message, “T” appears on the display. (*1) TPS operation (music search) detects the blank sections between music selections. Therefore, do not use tapes with the following conditions: A blank section that lasts only 4 seconds or less. No blank sect

30、ions (recording through microphones, etc.). Music selections that have extremely low pitches or prolonged silent sections (such as classical music). and/or Music recorded with fade in/out effect. 51 SA-PM31P / SA-PM31PC 11.4. Error Code Table 11.4.1. Error code for Power Supply Error CodeAbnormal It

31、emsPossible Cause F61POWER AMP output abnormal During normal operation, if either DCDET1 or DCDET2 becomes L, normal POWER OFF process shall not be executed, PCNT shall be switched to L immediately. GOODBYE shall not display and the error display F61 is displayed instead. 2 seconds after the F61 dis

32、play, ECONO shall be set to L and LCD display shall be turned off. The error content shall be memorised when the abnormality occurs and can be display in the C-mecha self-diagnostic mode described later. 11.4.2. Error codes for CD Mechanism Error CodeAbnormal ItemsPossible Cause F15CD REST SW abnorm

33、alCD traverse position intial setting operation failsafe counter (1000 ms) waiting for REST SW to turn on. Error No. shall be clear by force or during coldstart. F26CD servo LSI command signal abnormal CD function DTMS command, after system setting, If SENSE = L cannot be detected. Memory shall cont

34、ain F26 code. After Power on, CD function shall continue, error shall occur “NO DISC”. Error No. shall be clear by force or coldstart. F28DISC LOAD abnormalWhile going to play position, if failsafe counter is finished and switch o change or switch target condition was not achieve, this error shall b

35、e memorized. Next time mechanism operates, it shall do coldstart. Error No. shall be clear by force or coldstart. F29DISC unload abnormalWhile going to play position, if failsafe counter is finished and switch no change or switch target condition was not achieve, this error shall be memorized. Next

36、time mechanism operates, it shall do coldstart. Error No. shall be clear by force or coldstart. F27Slide operation abnormalDuring vertical operation, if failsafe timer is finished and switch no change or switch target condition was not achieve, this error shall be memorized. Next time mechanism oper

37、ates, it shall do coldstart.Error No. shall be clear by force or coldstart. F17Down SW abnormalDuring vertical operation going to the bottom position, if failsafe timer is finished and switch no change or switch target condition was not achieve, this error shall be memorized. The Next time mechanism

38、 operates, it shall do mechanism initialization.Error No. shall be clear by force or coldstart. F22Loading Mode / Mecha abnormal During mecha initialization, Loading mode mechanism abnormal, normal operation cannot be achieve. The next time mechanism operates, it shall do mechanism initialization.Er

39、ror No. shall be clear by force or coldstart. 11.4.3. Error codes for Cassette Mechanism Error CodeAbnormal ItemsPossible Cause H01MODE SW abnormalNormal operation during mecha transition, MODE SW abnormal is memorised. The content of abnormality can be confirmed in the abnormal detection mode expla

40、ined in the later section. H02REC INH SW abnormal The content of abnormality can be confirmed in the abnormal detection mode explained in the later section. H03HALF SW abnormal F01Reel pulse abnormal F02TPS abnormal 11.5. Cassette Mechanism Self-Diagnostic Mode 1. A Cr02-positioned blank cassette ta

41、pe with an erase prevention niche on either Side A or B. 2. A normal-positioned music tape with erase prevention niches on both Sides A and B. Both tapes are halfway forwarded in advance. 3. The remote controller that comes with this unit. No.Operation ProceduresMicon operation H: Tri-State 5SPOUTOS

42、pindle 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 (-)

43、 13FOPOTraverse 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 sign

44、al 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 sig

45、nal 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 92 Input 2PC2ITurntable Motor Drive Signal (“L”: ON) 3IN1

46、IMotor Driver (1) Input 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), Reference input 47PLLFOPLL loop filter 48PLLF0OPLL loop f

47、ilter 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 supply 1 57DVDD2-Power supply 2 for Digital circuit 58REGON

48、ILaser 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 65MLDIMicro-P serial command LOAD 66STATOStatus signal output

49、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 74TXTDOCD 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 out