Panasonic-SAXR55E-avr-sm 电路图 维修手册.pdf

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1、n AMPLIFIER SECTION Power output (at AC 230-240 V) DIN 1 kHz (T.H.D. 1 %)2 x 100 W (6 ) 20 Hz-20 kHz continuous power output both channels driven 2 x 80 W (6 ) Total harmonic distortion rated power at 20 Hz-20 kHz0.09 % (6 ) Power bandwidth both channels driven, -3 dB4 Hz-88 kHz (6 , 0.9 %) Power ou

2、tput each channel driven (at AC 230-240 V) DIN 1 kHz (T.H.D. 1 %) 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 B6-16 A and B6-16 BI-WIRE6-16 Center6-16 Surround (L/R)6-16 Surround Back (L/R)6-16 Frequency response CD, T

3、APE, TV, DVD, DVD RECORDER, VCR1, VCR2 4 Hz-88 kHz, 3 dB DVD 6CH4 Hz-44 kHz, 3 dB Input sensitivity and impedance CD, TAPE, TV, DVD/DVD 6CH, DVD RECORDER, VCR1, VCR2 200 mV/22 k 2005 Matsushita Electric Industrial Co. Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law.

4、 SA-XR55E SA-XR55EB SA-XR55EG Colour (S).Silver Type (K).Black Type (E/EG only) S/N at rated power (6 ) CD, TV, DVD, DVD RECORDER (Digital Input) 90 dB (IHF, A: 103 dB) Tone controls BASS50 Hz, +10 to -10 dB TREBLE20 kHz, +10 to -10 dB Output voltage TAPE, DVD RECORDER200 mV Channel balance (250 Hz-

5、6.3 kHz)1 dB Channel separation55 dB Subwoofer frequency response (-6 dB)7 Hz-200 Hz n FM TUNER SECTION Frequency range87.50-108.00 MHz Sensitivity S/N 30 dB1.5 V/75 S/N 26 dB1.3 V/75 S/N 20 dB1.2 V/75 IHF usable sensitivity (IHF 58)1.5 V/75 IHF 46 dB stereo quieting sensitivity22 V/75 Total harmoni

6、c distortion MONO0.2% STEREO0.3% S/N MONO60 dB STEREO58 dB Frequency response AV Control Receiver Specification ORDER NO. MD0505214C2 RadioFans.CN 收音机爱 好者资料库 20 Hz-15 kHz+1 dB, -2 dB Alternate channel selectivity 400 kHz65 dB Capture ratio1.5 dB Image rejection at 98 MHz40 dB IF rejection at 98 MHz7

7、0 dB Spurious response rejection at 98 MHz70 dB AM suppression50 dB Stereo separation 1 kHz40 dB Carrier leak 19 kHz-30 dB 38 kHz-50 dB Channel balance (250 Hz-6.3 kHz)1.5dB Limiting point1.2 V Bandwidth IF amplifier180 kHz FM demodulator1000 kHz Antenna terminal75 (unbalanced) n AM TUNER SECTION Fr

8、equency range522-1611 kHz (9 kHz step) 530-1620 kHz (10 kHz step) Sensitivity20 V, 330 V/m Selectivity (at 999 kHz)55 dB IF rejection (at 999 kHz)50 dB 1 SAFETY PRECAUTIONS 4 1.1. GENERAL GUIDELINES 4 2 Caution for AC Mains Lead 5 3 Before Repair and Adjustment 6 4 Protection Circuitry 6 5 Handling

9、the Lead-free Solder 6 5.1. About lead free solder (PbF) 6 6 Accessories 7 7 Operating Instructions 8 7.1. Main Unit 8 7.2. Remote Control 9 7.3. Home Theater Connections 10 7.4. Other Connections 15 8 Disassembly and Main Component Replacement Procedures and Operational Check 18 8.1. Disassembly fl

10、ow chart 18 n VIDEO SECTION Output voltage at 1 V input (unbalanced)10.1 Vp-p Maximum input voltage1.5 Vp-p Input/output impedance75 (unbalanced) S-Video InputTV, DVD, DVD RECORDER OutputTV MONITOR Component Video InputTV, DVD, DVD RECORDER OutputTV MONITOR n GENERAL Power supplyAC 230-240 V, 50 Hz

11、Power consumption135 W Dimensions (W H D)430 mm 107.5 mm 394 mm Mass4.6 kg 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. 8.2. P.C.B. Positions 19 8.3. Disassembly of Top Cab

12、inet. 19 8.4. Checking for the DSP P.C.B. (Side A/B) and Main P.C.B. (Side A). 20 8.5. Disassembly and Checking of Main P.C.B. (Side B) 21 8.6. Disassembly of Tuner Pack and Tuner Extent P.C.B. 21 8.7. Disassembly and Checking of Speaker P.C.B. 22 8.8. Disassembly and Checking of Component Video P.C

13、.B. 22 8.9. 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, please set it to 700 20F (370 10C). Pb free solder will tend to splash when heated too high (abou

14、t 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-XR55E / SA-XR55EB / SA-XR55EG 6 Accessories Note : Refer to Packaging Materials the power

15、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 new parts if necessary. 9.3. Returning to Normal Display Press the POWER button on the unit to exit the fun

16、ction. The power is turned off. 9.4. Overload/Shutdown Detection intenal Condition It detects OVERLOAD, POWER MALFUNCTION with THRM_DET, SHORT_DET and DC_DET input port. It detects the following condition depending on the input of the port as below table. (H: DC 5V / L: DC 0V) PROTDetection of malfu

17、nctionDisplay and operation SHORT_DETTHRM_DETDC_DET HLHNormal- LLHSpeaker Short, Malfunction of AmplifierOVERLOAD / POWER OFF LHHDetection of THERMAL PROTECTION -LDetection of POWER MALFUNCTION _ _ _ F76 _ _ _ / POWER OFF 9.5. Overload/Thermal Detection Display When overload is detected, automatic P

18、OWER 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 after display of message, OVERLOAD will be shown on the scroll display. 9.6. Activating Self Diagnosis Fun

19、ction (Servicing Mode) This mode can be used during servicing. 28 SA-XR55E / SA-XR55EB / SA-XR55EG 1. Plug the AC adapter to the power source. Press and hold down the MULTI CONTROL button and the SPEAKERS A button, and then press the POWER button at the same time. 2. The message, SERVICE appears on

20、the display for three seconds, and then disappears. Refer to Fig. 9.2. Fig. 9.2 3. When the TUNING DOWN button is pressed, the current program filing number (ex. M45_* for MA123_45) appears. The * digit indicates the ROM checksum used for ROM collection, and if the unit is not loaded with ROM, NO ap

21、pears. 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 collection, and if the unit is not loaded with ROM, NO appears. 9.7. Analog 6.1 CH Output Check Method When the SUBWOOFER bu

22、tton 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. 9.8. Returning to Normal Display Press the POWER button on the unit to exit the function. The power is turned off. 9.9. Activating Sel

23、f 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 SPEAKERS A button, and then press the POWER button at the same time. 2. Initialize all the setting and set the frequenc

24、y “99.7MHz” to Tuner. The message, “_DOCTOR_” appears on the display for three seconds, and then disappears. Refer to Fig. 9.3. Fig. 9.3 3. Doctor mode function at some remote control codes as below table. Remote ControlTest Mode Function and settings SelectorSound Modeother settingsVol/Tone CH 1TUN

25、ERSTEREOFrequency : FM min-48dB/0dB CH 2TUNERSTEREOFrequency : FM max-48dB/0dB CH 3TUNERSTEREOFM 98.3MHz-18dB/0dB CH 4TUNERSTEREOFrequency : AM min-48dB/0dB CH 5TUNERSTEREOFrequency : AM max-48dB/0dB CH 8If the input selector is TUNER, auto tuning function is started to upward on current frequency.

26、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. 9.4. Note : After this setting, only POWER button or Checker Command code by the remote control can be entered. CH UPCheck Main

27、 P software version. 29 SA-XR55E / SA-XR55EB / SA-XR55EG CH DOWNCheck Sub P software version. SUBWOOFERVCR 1 (Analog)-All CH Output Mode-18dB/0dB MUTINGDVD 6CH-18dB/0dB PLIIxCDSTEREOAnalog-18dB/0dB NEO:6TVSTEREOAnalog-18dB/0dB RE-MASTERDVDSTEREOAnalog-18dB/0dB LEVELDVR/DVD_RECSTEREOAnalog-18dB/0dB E

28、FFECTCDSTEREODigital (COAX 2)-48dB/0dB OFFTVSTEREODigital (OPT 1)-48dB/0dB SFC AV/MOVIEDVDSTEREODigital (COAX 1)-48dB/0dB SFC MUSICDVR/DVD_RECSTEREODigital (OPT 2)-48dB/0dB TESTNo changeSURROUNDScan the test noise output channel with 500ms intervals -18dB/0dB -/LCDSTEREOBalance is set to leftmost-18

29、dB/0dB +/RCDSTEREOBalance is set to rightmost-18dB/0dB Fig. 9.4 30 SA-XR55E / SA-XR55EB / SA-XR55EG 10 Voltage Measurement and Waveform Chart Note: Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as st

30、andard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester. Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point because it may differ from actual measuring value due

31、 to difference of Measuring instrument and its measuring condition and product itself. 10.1. Voltage Measurement 10.1.1. DSP P.C.B. Ref No. MODE12345678 CD PLAY02.52.502.52.65.15.1 STANDBY1.20.40.400.40.40.90.9 Ref No. MODE12345 CD PLAY00.100.10.2 STANDBY00.200.10.1 Ref No. MODE123456789101112131415

32、1617181920 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 PLAY0000000000.81.32.3 STANDBY0.10.10.10.10.10.10.10.10.1000 Ref No. MODE12345678 CD PLAY0.12.51.601.75.003.3 STANDBY0.10.4000000 Ref No. MODE12345678 CD PLA

33、Y2.51.61.601.63.33.33.3 STANDBY0.40000000 Ref No. MODE1234567891011121314151617181920 CD PLAY0001.21.21.20003.300001.2001.61.60 STANDBY00000000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY01.21.20001.21.21.21.61.61.63.31.701.21.61.71.20 STANDBY0000000.10.10.10.10.10.101.4

34、001.41.400 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. MODE6162636465666768697071727374757677787980 CD PLAY001.21.21.31.31.32.301.21.21.2-1.21.21.2001.21.2 STANDBY00000000000000000000 Ref No. M

35、ODE81828384858687888990919293949596979899100 CD PLAY1.31.21.21.33.3001.21.2001.3001.200003.3 STANDBY0000000000000000.10000 Ref No. MODE101102103104105106107108109110111112113114115116117118119120 CD PLAY0000001.21.20.81.32.300000001.21.2 STANDBY0000.10000000000000000 Ref No. MODE121 1221231241251261

36、27128129130131132133134135136137138139140 CD PLAY3.33.30003.31.21.2003.3003.33.33.31.21.200 STANDBY0000.10.1000000.1000000000 Ref No. MODE141142143144 CD PLAY03.33.33.3 STANDBY0000 IC1001 IC1007 IC1007 IC1002 IC1003 IC1003 IC1006 IC1007 IC1007 IC1007 IC1007 IC1007 IC1007 IC1005 DSP P.C.B. 31 SA-XR55

37、E / SA-XR55EB / SA-XR55EG Ref No. MODE1234567891011121314151617181920 CD PLAY00000000003.305.10000000 STANDBY0000000000000.90000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY001.71.71.31.61.61.21.51.73.31.5003.3003.31.21.2 STANDBY00000000000000000000 Ref No. MODE4142434445464748 CD

38、 PLAY01.601.601.601.6 STANDBY00000000 Ref No. MODE1234567891011121314151617181920 CD PLAY2.502.62.62.63.303.303.30003.31.21.61.61.73.30 STANDBY0.100.20.20.20001.31.300000.10.10.10.100 Ref No. MODE2122232425262728 CD PLAY05.002.62.62.602.5 STANDBY00.100.10.10.100.1 Ref No. MODE12345678910111213141516

39、17181920 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. MODE1234567891011121314151617181920 CD PLAY2.502.62.62.63.303.303.30003.31.21.61.61.73.30 STANDBY0.1

40、00.20.20.20001.31.300000.10.10.10.100 Ref No. MODE2122232425262728 CD PLAY05.002.62.62.602.5 STANDBY00.100.10.10.100.1 Ref No. MODEECBECBECB CD PLAY5.00.25.003.4003.40 STANDBY0.900.900.1000.10 IC1008 IC1008 IC1008 IC1011 IC1011 IC1009 IC1009 IC1010 IC1010 QR1001QR1002QR1003 32 SA-XR55E / SA-XR55EB /

41、 SA-XR55EG 10.1.2. Main P.C.B. Ref No. MODE12345 CD PLAY15.015.0012.01.0 STANDBY0.10.1000 Ref No. MODE12345678 CD PLAY000-15.100015.0 STANDBY0.10.100.100.10.10.1 Ref No. MODE12345678 CD PLAY000-15.100015.0 STANDBY0000.10000.1 Ref No. MODE1234567891011121314151617181920 CD PLAY003.300001.21.81.61.63.

42、31.61.61.61.63.31.61.63.4 STANDBY00000000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY2.33.33.30001.23.3012.041.730.825.420.705.141.730.825.420.7 STANDBY0000000000000.4000.4000.40 Ref No. MODE41424344454647484950515253545556 CD PLAY05.1010.55.2005.2010.55.2005.212.00 STAN

43、DBY00.4000.3000.3000.3000.400 Ref No. MODE1234567891011121314151617181920 CD PLAY003.300001.21.81.61.63.31.61.61.61.63.31.61.63.4 STANDBY00000000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY2.33.33.30001.22.0012.041.730.825.420.705.141.730.825.420.7 STANDBY0000000000000.4

44、000.4000.40 Ref No. MODE41424344454647484950515253545556 CD PLAY05.1010.55.2005.2010.55.2005.212.00 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. MODE21222324252627282930313233

45、34353637383940 CD PLAY2.33.33.30001.23.3012.041.730.825.420.705.141.730.825.420.7 STANDBY0000000000000.4000.4000.40 Ref No. MODE41424344454647484950515253545556 CD PLAY05.1010.55.2005.2010.55.2005.212.00 STANDBY00.4000.3000.3000.3000.400 Ref No. MODE1234567891011121314151617181920 CD PLAY003.300001.

46、21.81.61.63.31.61.61.61.63.31.61.63.4 STANDBY00000000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY2.33.33.30001.23.3012.041.730.825.420.705.141.730.825.420.7 STANDBY0000000000000.4000.4000.40 Ref No. MODE41424344454647484950515253545556 CD PLAY05.1010.55.2005.2010.55.2005

47、.212.00 STANDBY00.4000.3000.3000.3000.400 Ref No. MODE1234567891011121314151617181920 CD PLAY001.83.32.200000.803.13.33.13.13.13.1000 STANDBY000.400000000000000000 Ref No. MODE2122232425262728293031323334353637383940 CD PLAY00003.01.201.201.71.63.100000000 STANDBY00000000000000000000 Ref No. MODE414

48、2434445464748495051525354555657585960 CD PLAY1.71.73.31.71.71.71.73.31.61.61.61.63.31.61.603.303.30 STANDBY00000000000000000000 Ref No. MODE6162636465666768697071727374757677787980 CD PLAY1.61.63.31.61.61.61.63.31.61.61.61.73.31.61.6003.303.3 STANDBY00000000000000000000 IC6401 IC6082 IC6601 IC6301 I

49、C6301 IC6401 IC6401 IC6201 IC6201 IC6201 IC6301 MAIN P.C.B. IC6001 IC6101 IC6101 IC6101 IC6051 IC6601 IC6601 IC6601 33 SA-XR55E / SA-XR55EB / SA-XR55EG 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. MODE12345 CD PLAY0005.15.1 STANDBY0000.90.9 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. MODE12345678