Panasonic-RXD26E-cs-sm 电路图 维修手册.pdf

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1、n RADIO Frequency Range FM87.50108.00 MHz (50 kHz steps) AM5221629 kHz (9 kHz steps) n TAPE RECORDER Track System4 track, 2 channel, stereo Monitor systemVariable sound monitor Recording systemAC bias Erasing systemMulti Pole magnet Frequency range Normal position50 12000 Hz n CD PLAYER Sampling fre

2、quency44.1 kHz Decoding16 bit linear Beam sourceSemiconductor laser (wavelength 780 nm) No. of channels2 channel, stereo Wow and flutterLess than possible measurement data D/A converter1 bit DAC 2004 Matsushita Electric TAIWAN Industrial Co., Ltd. All rights reserved. Unauthorized copying and distri

3、bution is a violation of law. RX-D26E RX-D26EG RX-D26EB TraverseDeck:RAE0240Z-M Mechanism Series Colour (S).Silver Type (H).Gray Type n GENERAL Jacks OutputPhones : 3.5 mm stereo (32) Power output (RMS)2.0W + 2.0W (MAX) Power Requirement AC230-240 V, 50 Hz Power Consumption13 W Battery9 V (six R14/L

4、R14, C, UM-2 batteries) l Do not use rechargeable type batteries. Memory back-up4.5 V (three R6/LR6, AA, UM-3 batteries) l Do not use rechargeable type batteries. Speakers Full range8 cm 4 x 2 Dimensions (W x H x D)408 x 163 x 273 mm Mass3.3 kg without batteries Notes: 1. Specifications are subject

5、to change without notice. 2. Mass and dimensions are approximate. Portable Stereo CD System Specifications TD0404028C2 RadioFans.CN 收音机爱 好者资料库 1 Before Repair and Adjustment 3 2 Protection Circuitry 3 3 Accessories 3 4 Handling Precautions For Traverse Deck 4 5 Precaution of Laser Diode 5 6 Caution

6、for AC Main Lead 6 7 Location of Controls 7 8 Troubleshooting Guide 7 9 Self-Diagnostic Functions 8 9.1. Setting of the Self-Diagnostic Mode 8 9.2. Display Location 8 9.3. Display Content 8 10 Operation Checks and Component Replacement Procedures 9 10.1. Removal of the handle ass 馳 9 10.2. Removal o

7、f the up cabinet unit 9 10.3. Removal of the back cabinet and front cabinet 10 10.4. Removal of the main P.C.B. 10 10.5. Removal of the power transformer 11 10.6. Replacement of the cassette cover 11 10.7. Removal of the speaker 11 10.8. Removal of the rod ANT 11 10.9. Removal of the LCD ass 馳 12 10

8、.10. Removal of the LCD holder 12 10.11. Removal of the LCD P.C.B. 12 10.12. Removal of the LCD lid 12 10.13. Removal of the up ornament 13 10.14. Removal of the mechanism ass 馳 13 10.15. Replacement of Traverse Deck 15 10.16. Remove of the CD servo P.C.B. 16 10.17. Troubleshooting for Cassette Tape

9、 Entanglement 16 10.18. Check for Main P.C.B. and CD Servo P.C.B. 17 11 Type Illustration of IC 痴, Transistors and Diodes 18 12 Schematic Diagram Notes 18 13 Schematic Diagram 19 14 Printed Circuit Board Diagram 28 15 Wiring Connection Diagram 34 16 Measurements and Adjustments 35 16.1. Tuner Sectio

10、n 35 16.2. CD Section 36 17 Terminal Functions of ICs 37 18 Mechanism Parts Location 39 19 Cabinet Parts Location 40 20 Packaging 42 21 Replacement Parts List 42 CONTENTS Page Page 2 RX-D26E / RX-D26EG / RX-D26EB RadioFans.CN 收音机爱 好者资料库 1 Before Repair and Adjustment Disconnect AC power, discharge P

11、ower Supply Capacitors C116, C216, C317 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 state devices. After repairs are completed, restore power gradually using a variac, to avoid over current. Current consump

12、tion at AC 230 V, 240 V, 50 Hz in NO SIGNAL mode should be 45 mA respectively. 2 Protection Circuitry The protection circuitry may have operated if either of the following conditions are noticed: No sound is heard when the power is turned on. Stops during a performance. The function of this circuitr

13、y is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are “shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used. If this occurs, follow the procedure outlines below: 1. Turn off the power. 2

14、. Determine the cause of the problem and correct it. 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. 3 Accessories AC Main Lead (EB).1 pc AC Main Lead (E/EG).1 pc 3 RX-D

15、26E / RX-D26EG / RX-D26EB RadioFans.CN 收音机爱 好者资料库 4 Handling Precautions For Traverse Deck The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of clothesorhumanbody.So,becarefulofelectrostatic breakdown during repair of the tr

16、averse deck (optical pickup). Handling of 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. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexib

17、le board (FFC board). 3. Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish the job in as short time as possible. 4. Donotturnthevariableresistor(laserpower adjustment). It has already been adjusted. Grounding for electrostati

18、c breakdown prevention 1. Human body grounding Use the anti-static wrist strap to discharge the static electricity from your body. 2. Work 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: T

19、he static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the traverse deck (optical pickup). Caution when replacing the Traverse Deck The traverse deck has a short point shorted with solder to protect the laser diode against elec

20、trostatics breakdown. Be sure to remove the solder from the short point before making connections. 4 RX-D26E / RX-D26EG / RX-D26EB CAUTION: This product utilizes a laser diode with the unit truned “ON”, invisible laser radiation is emitted from the pick up lens. Wavelength : 780 nm Maximumoutputradi

21、ationpowerfrompickup: 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 adjust the variable resistor on the pick up unit. It was already adjusted. 3.

22、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 ZustandwirdunsichtbareLaserstrahlungvonder Lasereinheit abgestrahlt. Wellenlnge : 780nm MaximaleStrahlungsleistungderL

23、asereinheit: 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 werkseitig justierten Einstellregler der Lasereinhit nicht verstellen. 3. Nicht mit

24、optischen Instrumenten in die Fokussierlinse blicken. 4. Nicht ber lngere Zeit in die Fokussierlinse blicken. 5 Precaution of Laser Diode 5 RX-D26E / RX-D26EG / RX-D26EB 6 Caution for AC Main Lead 6 RX-D26E / RX-D26EG / RX-D26EB 7 Location of Controls These speakers do not have magnetic shielding. D

25、o not place them near televisions, personal computers or other devices easily influenced by magnetism. Tape mode/standby switch (TAPE/OFF) Tune mode select/CD play mode select/program button (TUNE MODE -CD PLAY MODE PGM ) Tuning/CD skip, search buttons ( , ) CD play/pause button ( CD ) CD lid Tuner

26、mode/band select/auto preset button (TUNER/BAND AUTO PRESET) CD Iid open/close ( CD OPEN/CLOSE) Volume control buttons (VOLUME , ) Display Sound equalizer select /sound virtualizer button ( SOUND EQ SOUND VIRTUALIZER) CD stop/clear/FM mode select button ( /CLEAR FM MODE) Record button ( ) Tape play

27、button ( PLAY) Rewind/review button ( REW/REV) Fast-forward/cue button ( FF/CUE) Stop/eject button ( STOP/EJECT) Pause button ( PAUSE) Speaker Deck Main unit: 8 Troubleshooting Guide 7 RX-D26E / RX-D26EG / RX-D26EB 9 Self-Diagnostic Functions 9.1. Setting of the Self-Diagnostic Mode 1. Switch the SE

28、LECTOR to CD and set to TAPE STOP state. (CD PLAYSTOP) 2. Press the n/CLEAR for the first two seconds and followed by the FAST FORWARD keys for another two seconds without releasing the n/CLEAR key, it shall enter into the Self-Diagnostic mode. 3. At the state of T display, operate as follows: Open

29、the CD lid and close it right away. Start recording TAPE, and STOP it at once. 4. Press n/CLEAR key. Self diagnostic results, i.e. the memorized errors during actual operations and the result of above-mentioned operation shall be displayed alternately. If there is no error, the aforementioned displa

30、y T , shall be kept. If the operation in the above mentioned in item 4 is made without executing the procedure in item 3, H16 and F69 shall be displayed. 9.2. Display Location 9.3. Display Content No.Abnormal ItemsError DisplayMethod of detection 1CLOSE SW abnormalH16Detect error during closing oper

31、ation and memorised it as an error. 2REST SW abnormalF15Under normal operation (Self-Diagnostic Mode inclusive), this error occurs when the REST SW ON is not detected within the specified time (5000 ms) and shall be memorised. 3Transmission error between CD servo LSI and micon F26Under normal operat

32、ion (Self-Diagnostic Mode inclusive), this error occurs when the selection is set to CD and SENSE =H is detected and SENSE =L is not detected within a fail-safe time (20 ms) after system command transmission was sent. 4Low battery detecterU01Detect the battery when the battery is low. 8 RX-D26E / RX

33、-D26EG / RX-D26EB 1. Thissectiondescribesproceduresforcheckingthe operation of the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reversetherespectiveproceduresspecialressembly procedures are described only when required. 3. S

34、elect item from the following index when checks or replacement are required. Contents Disassembly Procedure for each major P.C.B. 1. Replacement of Handle. 2.ReplacementofUpCabinet,BackCabinet,Front Cabinet. 3. Checking for Deck P.C.B and Tuner P.C.B. 4. Replacement of Pinch Roller, Eraser Head, Rec

35、ord / Play back Head. 5. Replacement of Motor, Main Belt, Forward Belt. 6. Replacement of Traverse Deck. 7. Replacement of CD Cover. 8. Replacement of Cassette Cover. 9. Troubleshooting for Cassette Tape Entanglement. 10. Checking for Main PCB and CD Servo P.C.B. Warning: This product uses a laser d

36、iode. Refer to “Precaution of Laser Diode”. 10.1. Removal of the handle assy 10.2. Removal of the up cabinet unit 10 Operation Checks and Component Replacement Procedures 9 RX-D26E / RX-D26EG / RX-D26EB 10.3. Removal of the back cabinet and front cabinet 10.4. Removal of the main P.C.B. 10 RX-D26E /

37、 RX-D26EG / RX-D26EB 10.5. Removal of the power transformer 10.6. Replacement of the cassette cover 10.7. Removal of the speaker 10.8. Removal of the rod ANT 11 RX-D26E / RX-D26EG / RX-D26EB 10.9. Removal of the LCD assy 10.10. Removal of the LCD holder 10.11. Removal of the LCD P.C.B. 10.12. Remova

38、l of the LCD lid 12 RX-D26E / RX-D26EG / RX-D26EB 10.13. Removal of the up ornament 10.14. Removal of the mechanism assy 10.14.1. Replacement of Pinch Roller, Eraser Head, Record / Play back Head l Replacement of Pinch Roller Remove a catch to remove the pinch roller upward. Notes : For pinch roller

39、 installation The spring of the pinch roller should fit in the dented part of the lever. l Replacement of Record/Replay Head Remove the two screws (b) and remove the record/replay head. l Replacement of Erase Head Remove the two catches and remove the erase head. 13 RX-D26E / RX-D26EG / RX-D26EB 10.

40、14.2. Replacement of Motor, Main Belt, Forward Belt Step 1 : Remove the connector. Step 2 : Remove the solders of the lead wire. Step 3 : Remove the screws. Step 4 : Remove the motor control circuit board. Step 5 : Remove the screw. Step 6 : Remove the motor and the motor angle. Step 7 : Remove the

41、screws. Step 8 : Remove the motor angle. Step 9 : Remove the forward belt. 10.14.2.1. Installation of Main Belt Step 1 : Position a main belt as picture shown temporarily. Step 2 : Install the motor and the motor angle to the mechanism unit. Step 3 : Fasten with a screw. 14 RX-D26E / RX-D26EG / RX-D

42、26EB Step 4 : Hang the main belt to the motor pulley. 10.15. Replacement of Traverse Deck 15 RX-D26E / RX-D26EG / RX-D26EB 10.16. Remove of the CD servo P.C.B. 10.17. Troubleshooting for Cassette Tape Entanglement 16 RX-D26E / RX-D26EG / RX-D26EB 10.18. Check for Main P.C.B. and CD Servo P.C.B. 17 R

43、X-D26E / RX-D26EG / RX-D26EB Importance safety notice: Componentsidentifedbymarkhavespecial characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high- quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any o

44、f components, be sure to use only manufacturers specified parts shown in the parts list. Caution! IC, LSI and VLSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. Cover the parts boxes made of plastics with aluminium foil. Put a conductive mat on

45、 the work table. Ground the soldering iron. Do not touch the pins of IC, LSI or VLSI with fingers directly. 11 Type Illustration of ICs, Transistors and Diodes 1 1 6 12 7 BA3313L (12P) 1 1 12 S-812C33AUA 1 2 3 No.1 1 2 3 4 C1BB00000846 AN22003A-NF C1BB00000717 C0AAAA000035MN6627934CH MN101C54ATA AN8

46、739SBE2 C0EBE0000230 2SD1819ARL B E C UNR521400L UNR511400L B1ACND000003 E C B B C E 2SA20570P B C E KTA12710YTA KTC3202YTA UNR511600L 2SB0709A0L KTC3199BLTA NC B0CDAB000019 Ca A Anode Cathode RVD1SS133TA RB411Q-40T MAZ41300MF MAZ40510MF RB411Q40T77 E C B Anode Cathode A Ca B0EAKM000118 A Ca Anode C

47、athode Anode Anode Cathode AA Ca B3AG0000079 Anode Cathode A Ca B3ACA0000205 ACa Anode Cathode 12 Schematic Diagram Notes 18 RX-D26E / RX-D26EG / RX-D26EB 13 Schematic Diagram C41 330P T1 R1 10K C50 0.033 D1 SVC344-AA CT1 L4 REKT029-0 C4 16V100 C5 0.047 CF2 RLFCFA450L4B CF1 J0B1065A0014 C20 10V100 C

48、15 0.047 X1 C19 50V1 R11 3.3K C22 50V 0.47 C21 50V1 C30 50V1 C31 50V1 C25 0.018 C27 0.018 R18 22K C33 100P C35 100P C37 100P R23 22K R24 22K R25 22K R22 10K R20 10K R17 10K C29 0.001 P COMP REG AMRF-IN FM-MIX GND2 A-IN A-OUT FM-OSC VCC2 FM RF-OUT FM DET AM LOW OUT GND1 VCC1 P DET AGC FM IF-IN AM IF-

49、IN AM-MIX B02 FM RF-IN AM OSC R OUT L OUT IC1 123456789101112181716151413 21 22232420 1927282930262533343536 32 31 B01 PD MPX-IN DET-OUY XIN VDD XOUT DI VSS CE CL DO C1BB00000823 L8 C39 0.001 C40 10V100 C34 27P C36 22P X2 R16 10K C32 50V4.7 C24 10V22 C26 0.01 C28 0.001 R14 4.7K C45 0.001 C18 0.01 R12 1.5K C17 50V3.3 C42 330P C14 330P C16 15P