Panasonic-SAXR70E-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

2、output 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 / BACK)100 W (6 ) Load impedance Front (L / R) A or B6-16 A and B6-16 BI-WIRE6-16 Center6-16 Surround (L / R / BACK)6-16 Frequency response CD, TV, DVD, DVR / VCR1, VCR2, TAP

3、E 4 Hz-88 kHz, 3 dB DVD 6CH4 Hz-44 kHz, 3 dB Input sensitivity and impedance CD, TV, DVD / DVD 6CH, DVR / VCR1, VCR2, TAPE 200 mV / 22 k 2004 Panasonic AVC Networks Singapore Pte. Ltd. (RCB Registration Number: 197701580H) All rightsreserved.Unauthorizedcopyingand distribution is a violation of law.

4、 SA-XR70E SA-XR70EB SA-XR70EG Colour (S). Silver Type S / N at rated power (6 ) CD, TV, DVD,DVR / VCR1 (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 (SECOND AUDIO OUT), DVR / VCR1 200 mV Channel balance (250 Hz-6.3 kHz

5、) 1 dB Channel separation55 dB Subwoofer frequency response (-6 dB)7 Hz-200 Hz Digital input (OPTICAL)2 (COAXIAL)2 Digital output (OPTICAL)1 HDMI input1 HDMI output1 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 u

6、sable sensitivity (IHF 58)1.5 V / 75 IHF 46 dB stereo quieting sensitivity22 V / 75 AV Control Receiver Specification ORDER NO. MD0408399C8 RadioFans.CN 收音机爱 好者资料库 Total harmonic distortion MONO0.2 % STEREO0.3 % S / N MONO60 dB STEREO58 dB Frequency response 20 Hz-15 kHz+ 1 dB, -2 dB Alternate chann

7、el selectivity 400 kHz65 dB Capture ratio1.5 dB Image rejection at 98 MHz40 dB IF rejection at 98 MHz70 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 Ban

8、dwidth IF amplifier180 kHz FM demodulator1000 kHz Antenna terminal75 (unbalanced) n AM TUNER SECTION Frequency range522-1611 kHz (9 kHz steps) 530-1620 kHz (10 kHz steps) 1 Safety Precautions 4 1.1. GENERAL GUIDELINES 4 2 Caution for AC Mains Lead 5 3 Before Repair and Adjustment 6 4 Protection Circ

9、uitry 6 5 Handling the Lead Solder 6 5.1. About lead free solder (PbF) 6 6 Accessories 7 7 Operation Procedures 8 8 Disassembly and Main Component Replacement Procedures and Operational Check 10 8.1. Disassembly of Top Cabinet. 10 8.2. Checking and Disassembly for DSP P.C.B. and Main P.C.B. (A Side)

10、. 11 Sensitivity20 V, 330 V / m Selectivity (at 999 kHz)55 dB IF rejection (at 999 kHz)50 dB n VIDEO SECTION Output voltage at 1 V input (unbalanced)1 0.1 Vp-p Maximum input voltage1.5 Vp-p Input / output impedance75 (unbalanced) S-Video InputTV, DVD, DVR / VCR1, VCR2 OutputTV MONITOR Component Vide

11、o InputTV, DVD OutputTV MONITOR OSD Video FormatPAL n GENERAL Power supplyAC 230-240V, 50 Hz Power consumption135 W Dimensions (W H D)430 83 376 mm Mass4.5 kg Power consumption in standby mode:1.6 W Notes: 1.Specifications are subject to change without notice. Mass and dimensions are approximate. 2.

12、Total harmonic distortion is measured by the digital spectrum analyzer. 8.3. Disassembly of Front Panel Assembly 13 8.4. Checking and Disassembly for Main P.C.B. (B Side) 14 8.5. Checking and Disassembly for HDMI P.C.B. (A / B Side) and Input P.C.B. 15 8.6. Checking and Disassembly for Panel and Vol

13、ume P.C.B. 16 8.7. Checking and Disassembly of Power P.C.B. and Speaker B Terminal P.C.B. 17 9 Self Diagnosis Display Function 19 9.1. Automatically Displayed Error Codes 19 9.2. Display Details 19 9.3. Activating Self Diagnosis Function (Servicing Mode) 19 9.4. Activating Self Diagnosis Function (D

14、octor Mode) 20 9.5. Returning to Normal Display 21 CONTENTS Page Page 2 SA-XR70E / SA-XR70EB / SA-XR70EG RadioFans.CN 收音机爱 好者资料库 10 HDMI Checking Method 22 10.1. What is HDMI 23 10.2. Main features and benefits 23 10.3. Other features and benefits 23 11 Voltage Measurement 24 11.1. Input P.C.B. 24 1

15、1.2. Power P.C.B. 25 11.3. Panel P.C.B. 26 11.4. DSP (Side A) P.C.B. 26 11.5. DSP (Side B) P.C.B. 27 11.6. Main P.C.B. 29 11.7. HDMI (Side A) P.C.B. 32 11.8. HDMI (Side B) P.C.B. 33 12 Waveform Chart 34 13 Block Diagram 35 14 Notes of Schematic Diagram 46 15 Schematic Diagram 47 15.1. DSP CIRCUIT 47

16、 15.2. MAIN (DIG 1) CIRCUIT 54 15.3. MAIN (DIG 2) CIRCUIT 61 15.4. INPUT CIRCUIT and TUNER EXTEND CIRCUIT 66 15.5. PANEL CIRCUIT 75 15.6. HEADPHONE CIRCUIT and VOLUME CIRCUIT 77 15.7. POWER CIRCUIT and SPEAKER B TERMINAL CIRCUIT 78 15.8. HDMI CIRCUIT 81 16 Printed Circuit Board 87 16.1. DSP P.C.B. 8

17、7 16.2. MAIN P.C.B. 88 16.3. INPUT P.C.B. 90 16.4. TUNER EXTEND P.C.B, HEADPHONE P.C.B, VOLUME P.C.B and SPEAKER B TERMINAL P.C.B 92 16.5. PANEL P.C.B. 93 16.6. POWER P.C.B. 95 16.7. HDMI P.C.B. 97 17 Wiring Connection Diagram 101 18 Illustration of IC s, Transistors and Diodes 103 19 Terminal Funct

18、ion of ICs 104 19.1. IC6901 (C2BBGF000565): Microprocessor 104 19.2. IC1014 (C2BBGF000566): Microprocessor 104 20 Parts Location and Replacement Parts List 106 20.1. Cabinet Parts Location 107 20.2. Electrical Part List 110 20.3. Packaging Materials Typically the melting point is 50 - 70F (30 - 40C)

19、 higher. Please use a high temperature soldering iron. In case of the soldering iron with temperaturecontrol, 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 t

20、he pins or solder area, and be sure to heat the soldering points with the Pb free solder until it melts enough. 6 SA-XR70E / SA-XR70EB / SA-XR70EG 6 Accessories Note : Refer to Packing Materials the power cannot be turned on. Failure in the power circuit system of the unit. This may happen when the

21、direct current electricity is supplied to speaker terminals. Check for the above and replace with new parts if necessary. 9.3. Activating Self Diagnosis Function (Servicing Mode) This mode can be used during servicing. 1. Plug the AC adapter to the power source. Press and hold down the BASS SYNTHESI

22、ZER button 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 (Refer picture below), and then disappears. 19 SA-XR70E / SA-XR70EB / SA-XR70EG 3. When the TUNING DOWN button is pressed, the current program fi

23、ling number (ex. M10_* for MA123_45) appears. The * digit indicates the ROM checksum used for ROM collection, and if theunit is not loaded with ROM, NO appears. When the TUNING UP button is pressed, the sub micro computer program filing number (ex. 511_* for MA678_90) appears. The * digit indicates

24、the ROM checksum used for ROM collection, andif the unit is not loaded with ROM, NO appears. 9.4. 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 SPEAKER

25、S A button, and then press the POWER button at the same time. 2. When “CHECKER COMMAND” code (00 DF) of the remote control is received. Initialize all the setting and set the frequency “93.40MHz” to Tuner. The message, “DOCTOR_” appears on the display for three seconds (Refer picture below), and the

26、n disappears. 3. Normal function for all buttons on the unit. 4. Doctor mode function at some remote control 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/

27、0dB CH 3TUNERSTEREOFM 98.3MHz-18dB/0dB CH 4TUNERSTEREOFrequency : AM min-48dB/0dB CH 5TUNERSTEREOFrequency : AM max-48dB/0dB CH 6TUNERSTEREOAM 765kHz-18dB/0dB CH 7TUNERSTEREOAM 770kHz-18dB/0dB CH 8If the input selector is TUNER, auto tuning function is started to upward on current frequency. CH 9If

28、the input selector is TUNER, auto tuning function is started to download on current frequency. CH 0All indicators of FL are displayed. All LED are off. Note : After this setting, only POWER button or Checker Command code by the remote control can be entered. CH UPCheck Main P software version. CH DO

29、WNCheck Sub P software version. SUBWOOFERDVR/VCR1-18dB/0dB MUTINGDVD 6CH-18dB/0dB LEVELDVR/VCR1STEREOANALOG-18dB/0dB 20 SA-XR70E / SA-XR70EB / SA-XR70EG EFFECTCD/COAX2STEREO-48dB/0dB STEREOTV/OPT1STEREO-48dB/0dB PL2DVD/COAX1STEREO-48dB/0dB SFCDVR/VCR1/OPT 2 STEREO-48dB/0dB TESTNo changeSURROUNDScan

30、the test noise output channel with 500ms intervals -18dB/0dB -/LCD/COAX2STEREOBalance is set to leftmost-18dB/0dB +/RCD/COAX2STEREOBalance is set to rightmost-18dB/0dB 5. After enter the remote control code “DIRECT(TUNING)”, the message “_ _ _OK_ _ _” will appear for 0.25 second when each button is

31、pressed one by one. 6. When “POWER” button is pressed or “ CHECKER COMMAND” code of remote control is received, quit this mode and turn off power then will initialize all setting of RAM. If the power failure are detected it willinitialize all RAM. 9.5. Returning to Normal Display Press the POWER but

32、ton on the unit to exit the function. The power is turned off. 21 SA-XR70E / SA-XR70EB / SA-XR70EG 10 HDMI Checking Method 1. Connection of HDMI system 2. Check of HDMI Sound a. Using the DVD AUDIO TEST DISC V-612 and DVD-VIDEO disc with Dolby Digital signal. b. DVD AUDIO TEST DISC V-612 - Track No.

33、 92 (96kHz, 5.1ch). Track No. 40 (Zero) Check the Level and Noise, output from L / C / R / SL / SR / SW / speaker or pin. c. DVD AUDIO TEST DISC V-612 - Track No. 7 (192kHz, 2ch) if this source can be reproduced, it is OK. 3. Check of HDMI Picture a. The picture quality of TV is checked by watching

34、that using DVD TEST DISK S-20 or DVD disc with the colour bar signal. b. DVD TEST DISK S-20 - Track No. 2 (Flag of the rising sun) Colour bar disc - Colour bar signal. c. Make on DVD Setup Picture Comfirmed that there are neither distortion nor a noise on the screen. If it is a picture quality equal

35、 when DVD was connected directly to TV, it is OK 22 SA-XR70E / SA-XR70EB / SA-XR70EG 1. Connect directly DVD player to TV. 2. Connect DVD player to set then connect it to TV. 3. Do the comparison for (1) and (2) if same, it is OK. 10.1. What is HDMI The High-Definition Multimedia Interface (HDMI) is

36、 rapidly emerging as the connection standard for HDTV. Developed by Sony, Hitachi, Thomson (RCA), Philips, Matsushita (Panasonic), Toshiba and Silicon Image as the digital interface standard forthe consumer electronics market, HDMI combines high-definition video and multi-channel audio in a single d

37、igital interface to provide crystal-clear digital quality over a single cable. One cable for audio and video dramatically simplifies home theatersystem installation and eliminates the cable mess behind entertainment system components. HDMI offers significant advantages over analog A/V connections, i

38、ncluding the ability to transmit uncompressed digital video and audio content. Hollywoodstudios and cable and satellite operators support HDMI. HDMI is based on Silicon Images TMDStechnology and is fully backward compatible with PCs and displays incorporating the Digital Visual Interface (DVI) stand

39、ard, which was also pioneered by Silicon Image. Because it was designedspecifically for consumer electronics applications, HDMI offers additional consumer enhancements. Content comes in a variety of sizes, resolutions and formats, and HDMI systems will automatically configure to display content in t

40、he most effective format.In addition, with a point and click, HDMIs integrated remote capability automatically configures the home theater system on demand, turning on or off the components necessary to view a DVD, listen to a CD or watch cable or satellite TV. 10.2. Main features and benefits All d

41、igital provides the highest quality HDMI is the only interface in consumer electronics that can carry both uncompressed high-definition video and uncompressed multi-channel audio in all HD formats, including 720p, 1080i and even upcoming 1080p. A single cable connection means no more cable mess Sinc

42、e HDMI carries all digital video and audio channels, there is only one cable to connect any HDMI-enabled source device to a display. 10.3. Other features and benefits Automatic format adjustment matches content to preferred viewing format HDMI systems can automatically configure to display content i

43、n its most effective format. If cable TV content jumps from 16:9 format to standard 4:3, an HDMI-enabled TV will automatically adjust to match the ideal format. Integrated remote provides simple control of your system HDMI allows CE manufacturers to build intelligence into their devices so that one

44、remote click can configure your entire HDMI- enabled system to turn certain components on or off depending on the specific components that are required. PC Compatibility enables viewing of your PC data on your HDTV HDMI-enabled devices are backwards compatible with the broad array of DVI-based PCs s

45、o that you can display gaming or entertainment content on your HDTV. 23 SA-XR70E / SA-XR70EB / SA-XR70EG 11 Voltage Measurement 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 standard. Theref

46、ore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester. 11.1. Input P.C.B. Ref No. MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CD PLAY 2.6 2.6 5.2 0 2.6 2.5 0 2.7 2.6 0 5.2 0 0 2.6 2.6 0 STANDBY Ref No. MODE 1 2 3 4 5 6 7 8 9 10 11 12 13

47、14 15 16 CD PLAY 0 4.0 0 0 0 4.5 0 -5.2 0 4.5 0 0 0 5.2 0 5.2 STANDBY Ref No. MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CD PLAY 0 4.8 0 0 0 0 5.2 0 0 0 0 0 0 0 0 -5.2 0 -5.2 0 -0.1 STANDBY Ref No. MODE 21 22 23 24 CD PLAY 5.2 0.1 4.6 0.1 STANDBY Ref No. MODE 1 2 3 4 5 6 7 8 9 10 11 12

48、13 14 15 16 17 18 19 20 CD PLAY 0 4.5 5.1 0 0 0 5.1 0 4.8 4.8 0 5.1 1.3 0 1.3 5.1 5.2 2 5.1 5.1 STANDBY Ref No. MODE 21 22 23 24 CD PLAY 0 5.1 5.1 5.1 STANDBY Ref No. MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CD PLAY 0 3.6 0 0 0 4.2 0 -5.2 0 4.2 0 0 0 5.2 0 5.2 STANDBY Ref No. MODE 1 2 3 4 5 6 7 8

49、 9 10 11 12 13 14 15 16 CD PLAY 0 3.6 0 0 0 4.2 0 -5.2 0 4.2 0 0 0 5.2 0 5.2 STANDBY Ref No. MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CD PLAY -14.4 0 0.1 0.1 0.1 0 0.1 0 0 0 0 0 0 0000000.1 STANDBY Ref No. MODE 21 22 23 24 25 26 27 28 29 30 CD PLAY 0 0 0 0.1 0 0.1 0.1 0.1 0 15.1 STANDBY Ref No. MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 CD PLAY -14.2 -0.1 0 0 0 0 0 0 0 0 0