Panasonic-SAPM27E-cs-sm 电路图 维修手册.pdf

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1、file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0000000000.htm Service Manual TOP NEXT Order No. MD0206158C2 CD Stereo System G SA-PM27E SA-PM27EB SA-PM27EG Colour (K) . Black Type Specification Amplifier Section RMS Power output 10% Total harmonic distortion 100 Hz, b

2、oth channels driven (Low channel)30 W per channel (6) 1 kHz, both channels driven (High channel)30 W per channel (6) Total Bi-Amp power60 W per channel Input sensitivity AUX250 mV Input impedance AUX11.8 k FM Tuner Section Frequency range87.50-108.00 MHz (50 kHz steps) Sensitivity1.8V (IHF) S/N 26 d

3、B1.5V Antenna terminal(s)75 (unbalanced) AM Tuner Section Frequency range522-1629 kHz (9 kHz steps) Sensitivity S/N 20 dB (at 999 kHz)560V/m file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0000000000.htm (1 of 3) 14.6.2003 18:23:08 RadioFans.CN 收音机爱 好者资料库 file:/C|/Docu

4、ments%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0000000000.htm 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 speed

5、4.8 cm/s Overall frequency response (+3 dB, -6 dB at Deck Out) Normal (type I)35 Hz - 14 kHz S/N50 dB (A weighted) Wow and flutter0.18% (WRMS) Fast forward and rewind timesApprox. 120 seconds with C-60 cassette tape CD Section Sampling frequency44.1 kHz Decoding16 bit linear Pickup Beam source/ Wave

6、lengthSemiconductor laser/ 780 nm Number of channelsStereo Frequency response20 Hz - 20 kHz (+1, -2 dB) Wow and flutterBelow measurable limit Digital filter8 fs D/A converterMASH (1 bit DAC) General Power supplyAC 230 V, 50 Hz Power consumption110 W Dimensions (W x H x D)179 x 241 x 375 mm Mass5.6 k

7、g Power consumption in standby modeApprox. 0.7 W System: SC-PM27(E)Music Center: SA-PM27(E) Speaker: SB-PM27(P) System: SC-PM27(EB)Music Center: SA-PM27(EB) Speaker: SB-PM27(P) System: SC-PM27(EG)Music Center: SA-PM27(EG) Speaker: SB-PM27(EG) Notes: 1. Specifications are subject to change without no

8、tice. Mass and dimensions are approximate. 2. Total harmonic distortion is measured by the digital spectrum analyzer. 2002 Matsushita Electronics (S) Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law. file:/C|/Documents%20and%20Settings/Administrator/Plocha/P

9、ANASONIC%20SA-PM27E/s0000000000.htm (2 of 3) 14.6.2003 18:23:08 RadioFans.CN 收音机爱 好者资料库 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0100000000 x.htm 1 Before Repair and Adjustment TOP PREVIOUS NEXT Disconnect AC power, discharge Power Supply Capacitors C506, C507,

10、C508, C576, C577, C587, C588, C615 through a 10 , 5 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screw driver blade, for instance), as this may destroy solid statedevices. After repairs are completed, restore power gradually using a variac, to avoid over current. Current consumption a

11、t AC 230 V, 50 Hz in NO SIGNAL mode should be 300 mA. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0100000000 x.htm 14.6.2003 18:24:11 RadioFans.CN 收音机爱 好者资料库 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0200000000

12、 x.htm 2 Protection Circuitry TOP PREVIOUS NEXT The protection circuitry may have operated if either of the following conditions are noticed: G No sound is heard when the power is turned on. G Stops during a performance. The function of this circuitry is to prevent circuitry damage if, for example,

13、the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance ofthe amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power. 2. Determine the cause of the problem and correct it

14、. 3. Turn on the power once again after one minute. Note: When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0200000000 x.htm 14.6.

15、2003 18:24:38 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0300000000 x.htm 3 Accessories TOP PREVIOUS NEXT AC Mains lead (E/EG).1 pc AC Mains lead (EB).1 pc AM Loop Antenna.1 pc FM Indoor Antenna.1 pc file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASON

16、IC%20SA-PM27E/s0300000000 x.htm (1 of 2) 14.6.2003 18:25:03 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0300000000 x.htm Antenna Plug Adaptor.1 pc (EB only) Remote Control Transmitter.1 pc TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/P

17、ANASONIC%20SA-PM27E/s0300000000 x.htm (2 of 2) 14.6.2003 18:25:03 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0400000000 x.htm 4 Caution for AC Mains Lead TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0400000000 x.

18、htm (1 of 2) 14.6.2003 18:25:35 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0500000000 x.htm 5 Self-Diagnostic Display Function TOP PREVIOUS NEXT This unit is equipped with a self-diagnostic display function, which will be useful during servicing and maintenance. G

19、 Refer to the next page for display symbols, symptoms, etc. 5.1 Preparations 5.2 Setting of the Self-Diagnostic Mode 5.3 Restoring Normal Display 5.4 Clearing Self-Diagnostic Memory 5.5 Displaying Self-Diagnostic Results TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANA

20、SONIC%20SA-PM27E/s0500000000 x.htm 14.6.2003 18:25:57 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0501000000.htm 5.1 Preparations TOP PREVIOUS NEXT 1. A Cr02-positioned blank cassette tape with an erase prevention niche on either Side A or B. 2. A normal-positioned

21、 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. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0501000000.htm 14.6.2003 18:26:20 file:/C|

22、/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0502000000.htm 5.2 Setting of the Self-Diagnostic Mode TOP PREVIOUS NEXT TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0502000000.htm 14.6.2003 18:26:45 file:/C|/Documents%20and%

23、20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0503000000.htm 5.3 Restoring Normal Display TOP PREVIOUS NEXT G From the F76 display, the normal display does not appear till an error is recovered. G For displays other than F76, press “POWER” button to turn off the power, and then turn on the p

24、ower. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0503000000.htm 14.6.2003 18:27:07 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0504000000.htm 5.4 Clearing Self-Diagnostic Memory TOP PREVIOUS NEXT (F15, F17, F22,

25、 F26, F27, F28, F29) 1. Enter a self-diagnostic mode. 2. Press /-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 /-DEMO button is pressing repeatedly. (e.g. H01 CD F15 F01) If no error i

26、s found, only TEST indication is displayed and remains unchange even if /-DEMO button is pressed. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0504000000.htm 14.6.2003 18:27:45 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA

27、-PM27E/s0505000000.htm 5.5 Displaying Self-Diagnostic Results TOP PREVIOUS NEXT (H01, H02, H03, F01, F02) 1. Enter the self-diagnostic mode, following the instructions described in 5.2. Entering Self- Diagnostic Mode. 2. Insert a normal-positioned music tape with erase prevention niches on both Side

28、s A and B. Press TAPE button to activate the TPS operation so that the tape automatically stopsat an interval between music selections. 3. Press /CLEAR and TAPE buttons together on the remote controller. (Recording does not start.) 4. Then, insert a Cr02-positioned blank cassette tape with an erase

29、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 /REW/ button. The tape will be rewound and automatically stops after two seconds. 8. Press /-

30、DEMO button on the unit. file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0505000000.htm (1 of 3) 14.6.2003 18:28:08 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0505000000.htm If an error is found, a self-diagnostic key appears on the

31、display. If several errors are found, the display shows these keys when /-DEMO button is pressed repeatedly. (Ex.: H01 - H02 - F01 - H01) If no error is found, only the message, “CD TEST” appears on the display. (*1) TPS operation (music search) detects the blank sections between music selections. T

32、herefore, do not use tapes with the following conditions: G A blank section that lasts only 4 seconds or less. G No blank sections (recording through microphones, etc.). G Music selections that have extremely low pitches or prolonged silent sections (such as classical music). G and/or Music recorded

33、 with fade in/out effect. file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0505000000.htm (2 of 3) 14.6.2003 18:28:08 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0505000000.htm TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Admi

34、nistrator/Plocha/PANASONIC%20SA-PM27E/s0505000000.htm (3 of 3) 14.6.2003 18:28:08 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0600000000 x.htm 6 Handling Precautions For Traverse Deck TOP PREVIOUS NEXT The laser diode in the traverse deck (optical pickup) may break

35、 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). G Handling of traverse deck (optical pickup) 1. Do not subject the traverse deck (optical pickup) to static electric

36、ity as it is extremely sensitive to electrical shock. 2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board). 3. Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, f

37、inish the job in as short time as possible. 4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted. G Grounding for electrostatic breakdown prevention 1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. 2. W

38、ork table grounding. Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, 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 tra

39、verse deck (optical pickup). file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0600000000 x.htm (1 of 2) 14.6.2003 18:28:31 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0600000000 x.htm Cross-Ref 20442: Body: Caution:Caution when replaci

40、ng the Traverse Deck The traverse deck 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. TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%

41、20SA-PM27E/s0600000000 x.htm (2 of 2) 14.6.2003 18:28:31 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0700000000 x.htm 7 Precaution of Laser Diode TOP PREVIOUS NEXT CAUTION: This product utilizes a laser diode with the unit truned “ON”, invisible laser radiation is

42、emitted from the pick up lens. Wavelength : 780 nm Maximum output radiation power from pick up : 100W/VDE Laserradiation 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. 2. Do not adj

43、ust 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 enigeschalteten Zustand wird unsichtbare Laserstrahlung von

44、 der Lasereinheit abgestrahlt. Wellenlnge : 780nm Maximale Strahlungsleistung der Lasereinheit : 100W/VDE DieStrahlung an der Lasereinheit ist ungefhrlich, wenn folgende Punkte beachtet werden: 1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefhrlich ist. 2. Den

45、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. file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANAS

46、ONIC%20SA-PM27E/s0700000000 x.htm (1 of 2) 14.6.2003 18:28:52 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0700000000 x.htm CAUTION! THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESU

47、LT IN HAZARDOUS RADIATION EXPOSURE. Use of Caution Labels TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0700000000 x.htm (2 of 2) 14.6.2003 18:28:52 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0800000000o.htm 8 Fro

48、nt Panel Controls TOP PREVIOUS NEXT file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0800000000o.htm (1 of 2) 14.6.2003 18:29:16 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0800000000o.htm TOP PREVIOUS NEXT file:/C|/Documents%20and%20S

49、ettings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0800000000o.htm (2 of 2) 14.6.2003 18:29:16 file:/C|/Documents%20and%20Settings/Administrator/Plocha/PANASONIC%20SA-PM27E/s0900000000e.htm 9 Disassembly and Main Component Replacement Procedures. TOP PREVIOUS NEXT “ATTENTION SERVICER” Some chassis components maybe have sharp edges. Be careful when diasse