Panasonic-SAXR55P-avr-sm维修电路原理图.pdf

《Panasonic-SAXR55P-avr-sm维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Panasonic-SAXR55P-avr-sm维修电路原理图.pdf（129页珍藏版）》请在收音机爱好者资料库上搜索。

1、n AMPLIFIER SECTION Rated minimum sine wave RMS power output 20 Hz-20 kHz both channels driven 0.09 % total harmonic distortion100 W per channel (6 ) 1 kHz continuous power output both channels driven 0.09 % total harmonic distortion105 W per channel (6 ) Total harmonic distortion rated power at 20

2、Hz-20 kHz0.09 % (6 ) Power bandwidth both channels driven, -3 dB4 Hz-88 kHz (6 , 0.9 %) Power output each channel driven 0.9 % total harmonic distortion at 1kHz Front (L/R)100 W (6 ) Center100 W (6 ) Surround (L/R)100 W (6 ) Surround Back (L/R)100 W (6 ) Load impedance Front (L/R) A or B6-8 A and B6

3、-8 BI-WIRE6-8 Center6-8 Surround (L/R)6-8 Surround Back (L/R)6-8 Frequency response CD, TAPE, TV, DVD, DVD RECORDER, VCR1, VCR2 4 Hz-88 kHz, 3 dB DVD 6CH4 Hz-44 kHz, 3 dB 2005 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. SA-XR5

4、5P SA-XR55PC Colour (S).Silver Type (K).Black Type (P only) Input sensitivity CD, TAPE, TV, DVD, DVD RECORDER, VCR1, VCR2 27 mV (200mV, IHF 66) Input impedance CD, TAPE, TV, DVD, DVD RECORDER, VCR1, VCR2 22 k S/N (IHF A) CD, TV, DVD, DVD RECORDER (Digital Input) 85 dB (103 dB, IHF 66) Tone controls

5、BASS50 Hz, +10 to -10 dB TREBLE20 kHz, +10 to -10 dB Subwoofer frequency response (-6 dB)7 Hz-200 Hz n FM TUNER SECTION Frequency range87.9-107.9 MHz Sensitivity11.2 dBf (2 V, IHF 58) 50 dB quieting sensitivity MONO18.3 dBf (4.5 V, IHF 58) STEREO38.3 dBf (45 V, IHF 58) Total harmonic distortion MONO

6、0.2% STEREO0.3% S/N AV Control Receiver Specification ORDER NO. MD0504178C1 A1 RadioFans.CN 收音机爱 好者资料库 MONO73 dB STEREO67 dB Frequency response20 Hz-15 kHz, +1 dB, -2 dB Alternate channel selectivity65 dB Capture ratio1.5 dB Image rejection at 98 MHz40 dB Spurious response rejection at 98 MHz75 dB A

7、M suppression50 dB Stereo separation 1 kHz40 dB 10 kHz30 dB Antenna terminal75 (unbalanced) n AM TUNER SECTION Frequency range530-1710 kHz Sensitivity20 V, 330 V/m Selectivity55 dB IF rejection at 1000 kHz50 dB n VIDEO SECTION Output voltage at 1 V input (unbalanced)10.1 Vp-p Maximum input voltage1.

8、5 Vp-p Input/output impedance75 S-Video 1 SAFETY PRECAUTIONS 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 Accessories 6 6 Operating Instructions 7 6.1. Main Unit 7 6.2. Remote Control 8 6

9、.3. Home Theater Connections 9 6.4. Other Connections 14 7 Disassembly and Main Component Replacement Procedures and Operational Check 17 7.1. Disassembly flow chart 17 7.2. P.C.B. Positions 18 7.3. Disassembly of Top Cabinet. 18 7.4. Checking for the DSP P.C.B. (Side A/B) and Main P.C.B. (Side A).

10、19 InputTV, DVD, DVD RECORDER OutputTV MONITOR Component Video InputTV, DVD, DVD RECORDER OutputTV MONITOR n GENERAL Power supplyAC 120 V, 60 Hz Power consumption135 W Dimensions (W H D)430 mm 107.5 mm 394 mm (16-15/16” 4-7/32” 15-1/2”) Mass4.6 kg (10.1 lb.) n DIN POWER 1 kHz, T.H. D 1%2 x 100 W (6

11、) 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. 7.5. Disassembly and Checking of Main P.C.B. (Side B) 20 7.6. Disassembly of Tuner Pack and Tuner Extent P.C.B. 20 7.7. Disas

12、sembly and Checking of Speaker P.C.B. 21 7.8. Disassembly and Checking of Component Video P.C.B. 21 7.9. Disassembly and Checking of Video 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, plea

13、se 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 soldering points with the Pb free solder until it melts enough. 5

14、SA-XR55P / SA-XR55PC RadioFans.CN 收音机爱 好者资料库 5 Accessories Note : Refer to Packaging Materials the power cannot be turned on. Failure in the power circuit system of the unit. This may happen when the direct current electricity is supplied to speaker terminals. Check for the above and replace with ne

15、w parts if necessary. 8.3. Returning to Normal Display Press the POWER button on the unit to exit the function. The power is turned off. 8.4. Overload/Shutdown Detection intenal Condition It detects OVERLOAD, POWER MALFUNCTION with THRM_DET, SHORT_DET and DC_DET input port. It detects the following

16、condition depending on the input of the port as below table. (H: DC 5V / L: DC 0V) PROTDetection of malfunctionDisplay and operation SHORT_DETTHRM_DETDC_DET HLHNormal- LLHSpeaker Short, Malfunction of AmplifierOVERLOAD / POWER OFF LHHDetection of THERMAL PROTECTION -LDetection of POWER MALFUNCTION _

17、 _ _ F76 _ _ _ / POWER OFF 8.5. Overload/Thermal Detection Display When overload is detected, automatic POWER OFF will occur. But if any key on the remote control other than the POWER key is pressed before that (including the HELP key), the scroll display will show SWITCH_OFF_POWER. Then, 1 second a

18、fter display of message, OVERLOAD will be shown on the scroll display. 8.6. Activating Self Diagnosis Function (Servicing Mode) This mode can be used during servicing. 27 SA-XR55P / SA-XR55PC RadioFans.CN 收音机爱 好者资料库 1. Plug the AC adapter to the power source. Press and hold down the MULTI CONTROL bu

19、tton and the SPEAKERS A button, and then press the POWER button at the same time. 2. The message, SERVICE appears on the display for three seconds, and then disappears. Refer to Fig. 8.2. Fig. 8.2 3. When the TUNING DOWN button is pressed, the current program filing number (ex. M45_* for MA123_45) a

20、ppears. The * digit indicates the ROM checksum used for ROM collection, and if the unit is not loaded with ROM, NO appears. When the TUNING UP button is pressed, the sub micro computer program filing number (ex. 523_* for MA678_90) appears. The * digit indicates the ROM checksum used for ROM collect

21、ion, and if the unit is not loaded with ROM, NO appears. 8.7. Analog 6.1 CH Output Check Method When the SUBWOOFER button on the remote controller, the function is switched to Input Inspection Mode, which output analog input signals at L channel of VCR analog input to all channels. 8.8. Returning to

22、 Normal Display Press the POWER button on the unit to exit the function. The power is turned off. 8.9. Activating Self Diagnosis Function (Doctor Mode) This mode can be used during servicing. 1. Plug the AC adapter to the power source. Press and hold down the MULTI-SOURCE RE-MASTER button and the SP

23、EAKERS A button, and then press the POWER button at the same time. 2. Initialize all the setting and set the frequency “99.7MHz” to Tuner. The message, “_DOCTOR_” appears on the display for three seconds, and then disappears. Refer to Fig. 8.3. Fig. 8.3 3. Doctor mode function at some remote control

24、 codes as below table. Remote ControlTest Mode Function and settings SelectorSound Modeother settingsVol/Tone CH 1TUNERSTEREOFrequency : FM min-48dB/0dB CH 2TUNERSTEREOFrequency : FM max-48dB/0dB CH 3TUNERSTEREOFM 98.3MHz-18dB/0dB CH 4TUNERSTEREOFrequency : AM min-48dB/0dB CH 5TUNERSTEREOFrequency :

25、 AM max-48dB/0dB CH 8If the input selector is TUNER, auto tuning function is started to upward on current frequency. CH 9If the input selector is TUNER, auto tuning function is started to downward on current frequency. CH 0All indicators of FL are displayed. All LED are off. Refer to Fig. 8.4. Note

26、: After this setting, only POWER button or Checker Command code by the remote control can be entered. CH UPCheck Main P software version. 28 SA-XR55P / SA-XR55PC RadioFans.CN 收音机爱 好者资料库 CH DOWNCheck Sub P software version. SUBWOOFERVCR 1 (Analog)-All CH Output Mode-18dB/0dB MUTINGDVD 6CH-18dB/0dB PL

27、IIxCDSTEREOAnalog-18dB/0dB NEO:6TVSTEREOAnalog-18dB/0dB RE-MASTERDVDSTEREOAnalog-18dB/0dB LEVELDVR/DVD_RECSTEREOAnalog-18dB/0dB EFFECTCDSTEREODigital (COAX 2)-48dB/0dB OFFTVSTEREODigital (OPT 1)-48dB/0dB SFC AV/MOVIEDVDSTEREODigital (COAX 1)-48dB/0dB SFC MUSICDVR/DVD_RECSTEREODigital (OPT 2)-48dB/0d

28、B TESTNo changeSURROUNDScan the test noise output channel with 500ms intervals -18dB/0dB -/LCDSTEREOBalance is set to leftmost-18dB/0dB +/RCDSTEREOBalance is set to rightmost-18dB/0dB Fig. 8.4 29 SA-XR55P / SA-XR55PC RadioFans.CN 收音机爱 好者资料库 9 Voltage Measurement and Waveform Chart Note: Indicated vo

29、ltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester. Circuit voltage and waveform

30、 described herein shall be regarded as reference information when probing defect point because it may differ from actual measuring value due to difference of Measuring instrument and its measuring condition and product itself. 9.1. Voltage Measurement 9.1.1. DSP P.C.B. Ref No. MODE12345678 CD PLAY02

31、.52.502.52.65.15.1 STANDBY1.20.40.400.40.40.90.9 Ref No. MODE12345 CD PLAY00.100.20.2 STANDBY00.200.10.1 Ref No. MODE1234567891011121314151617181920 CD PLAY1.31.31.31.32.33.31.33.30-1.31.31.31.31.31.31.31.31.31.3 STANDBY00000000000000000000 Ref No. MODE212223242526272829303132 CD PLAY0000000000.81.3

32、0 STANDBY0.10.10.10.10.10.10.10.10.1000 Ref No. MODE12345678 CD PLAY0.22.51.601.75.003.3 STANDBY0.10.4000000 Ref No. MODE12345678 CD PLAY2.51.61.601.63.33.33.3 STANDBY0.40000000 Ref No. MODE1234567891011121314151617181920 CD PLAY0001.21.21.20003.300001.2001.61.60 STANDBY00000000000000000000 Ref No.

33、MODE2122232425262728293031323334353637383940 CD PLAY01.21.20001.21.21.21.61.61.63.31.701.21.61.71.20 STANDBY0000000.10.10.10.10.10.101.4001.41.400 Ref No. MODE4142434445464748495051525354555657585960 CD PLAY001.2-3.300001.21.203.33.34.34.3001.23.3 STANDBY000001.21.100001.41.401.41.41.4000 Ref No. MO

34、DE6162636465666768697071727374757677787980 CD PLAY001.21.21.31.31.32.301.21.21.2-1.21.21.2001.21.2 STANDBY00000000000000000000 Ref No. MODE81828384858687888990919293949596979899100 CD PLAY1.31.21.21.33.3001.21.2001.3001.200003.3 STANDBY0000000000000000.10000 Ref No. MODE10110210310410510610710810911

35、0111112113114115116117118119120 CD PLAY0000001.21.20.81.32.300000001.21.2 STANDBY0000.10000000000000000 Ref No. MODE121 122123124125126127128129130131132133134135136137138139140 CD PLAY3.33.30003.31.21.2003.3003.33.33.31.21.200 STANDBY0000.10.1000000.1000000000 Ref No. MODE141142143144 CD PLAY03.33.

36、33.3 STANDBY0000 DSP P.C.B. IC1007 IC1005 IC1007 IC1007 IC1007 IC1007 IC1007 IC1007 IC1007 IC1002 IC1003 IC1003 IC1006 IC1001 30 SA-XR55P / SA-XR55PC RadioFans.CN 收音机爱 好者资料库 Ref No. MODE1234567891011121314151617181920 CD PLAY00000000003.305.10000000 STANDBY0000000000000.90000000 Ref No. MODE21222324

37、25262728293031323334353637383940 CD PLAY001.71.71.31.61.61.21.51.73.31.5003.3003.31.21.2 STANDBY00000000000000000000 Ref No. MODE4142434445464748 CD PLAY01.601.601.601.6 STANDBY00000000 Ref No. MODE1234567891011121314151617181920 CD PLAY2.502.62.62.63.303.303.30003.31.21.61.61.73.30 STANDBY0.100.20.

38、20.20001.31.300000.10.10.10.100 Ref No. MODE2122232425262728 CD PLAY05.002.62.62.602.5 STANDBY00.100.10.10.100.1 Ref No. MODE1234567891011121314151617181920 CD PLAY2.502.62.62.63.303.303.30003.31.21.61.61.73.30 STANDBY0.100.20.20.20001.31.300000.10.10.10.100 Ref No. MODE2122232425262728 CD PLAY05.00

39、2.62.62.602.5 STANDBY00.100.10.10.100.1 Ref No. MODE1234567891011121314151617181920 CD PLAY2.502.62.62.63.303.303.30003.31.21.61.61.73.30 STANDBY0.100.20.20.20001.31.300000.10.10.10.100 Ref No. MODE2122232425262728 CD PLAY05.002.62.62.602.5 STANDBY00.100.10.10.100.1 Ref No. MODEECBECBECB CD PLAY5.00

40、.35.004.6002.90 STANDBY0.900.900.1000.10 QR1001QR1002QR1003 IC1011 IC1011 IC1009 IC1009 IC1010 IC1010 IC1008 IC1008 IC1008 31 SA-XR55P / SA-XR55PC RadioFans.CN 收音机爱 好者资料库 9.1.2. Main P.C.B. Ref No. MODE12345 CD PLAY15.015.0012.01.0 STANDBY0.10.1000 Ref No. MODE12345678 CD PLAY000-15.100015.2 STANDBY

41、0.10.100.100.10.10.1 Ref No. MODE12345678 CD PLAY000-15.100015.2 STANDBY0000.10000.1 Ref No. MODE1234567891011121314151617181920 CD PLAY003.300001.21.81.61.63.31.61.61.61.63.31.61.63.4 STANDBY00000000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY2.33.33.30001.23.3012.010.6

42、10.610.15.305.110.615.410.15.3 STANDBY0000000000000.4000.4000.40 Ref No. MODE41424344454647484950515253545556 CD PLAY05.110.615.410.112.005.110.615.410.15.305.112.00 STANDBY00.4000.3000.3000.3000.400 Ref No. MODE1234567891011121314151617181920 CD PLAY003.300001.21.81.61.63.31.61.61.61.63.31.61.63.4

43、STANDBY00000000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY2.33.33.30001.22.3012.010.610.610.15.305.110.615.410.15.3 STANDBY0000000000000.4000.4000.40 Ref No. MODE41424344454647484950515253545556 CD PLAY05.110.615.410.112.005.110.615.410.15.305.112.00 STANDBY00.4000.3000

44、.3000.3000.400 Ref No. MODE1234567891011121314151617181920 CD PLAY003.300001.21.81.61.63.31.61.61.61.63.31.61.63.4 STANDBY00000000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY2.33.33.30001.23.3012.010.610.610.15.305.110.615.410.15.3 STANDBY0000000000000.4000.4000.40 Ref N

45、o. MODE41424344454647484950515253545556 CD PLAY05.110.615.410.112.005.110.615.410.15.305.112.00 STANDBY00.4000.3000.3000.3000.400 Ref No. MODE1234567891011121314151617181920 CD PLAY003.300001.21.81.61.63.31.61.61.61.63.31.61.63.4 STANDBY00000000000000000000 Ref No. MODE212223242526272829303132333435

46、3637383940 CD PLAY2.33.33.30001.23.3012.010.610.610.15.305.110.615.410.15.3 STANDBY0000000000000.4000.4000.40 Ref No. MODE41424344454647484950515253545556 CD PLAY05.110.615.410.112.005.110.615.410.15.305.112.00 STANDBY00.4000.3000.3000.3000.400 Ref No. MODE1234567891011121314151617181920 CD PLAY001.

47、83.32.200000.803.13.33.13.13.13.1000 STANDBY000.400000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY00003.01.201.201.71.63.100000000 STANDBY00000000000000000000 Ref No. MODE4142434445464748495051525354555657585960 CD PLAY1.71.73.31.71.71.71.73.31.61.61.61.63.31.61.603.303.

48、30 STANDBY00000000000000000000 Ref No. MODE6162636465666768697071727374757677787980 CD PLAY1.61.63.31.61.61.61.63.31.61.61.61.73.31.61.6003.303.3 STANDBY00000000000000000000 Ref No. MODE1234567891011121314 CD PLAY3.31.61.73.31.61.701.71.73.31.71.73.33.3 STANDBY0.10.100.10.10.1000.10.100.10.10 Ref No

49、. MODE12345 CD PLAY0005.15.1 STANDBY0000.90.9 IC6601 IC6601 IC6601 IC6001 IC6101 IC6101 IC6101 IC6051 MAIN P.C.B. IC6201 IC6201 IC6301 IC6401 IC6082 IC6601 IC6603 IC6602 IC6301 IC6301 IC6401 IC6401 IC6201 32 SA-XR55P / SA-XR55PC RadioFans.CN 收音机爱 好者资料库 Ref No. MODE1234567891011121314151617181920 CD PLAY3.31.201.2-1.71.61.60001.61.71.8-1.201.203.3 STANDBY000001.11.11.1002.7002.9000000 Ref No. MODE1234567891011121314151617181920 CD PLAY001.83.32.200000.803.13.33.13.13.13.13.100 STAN