Panasonic PV-M2738 Operating Скачать руководство пользователя

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7-6

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CAPACITORS

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`NMNM=======b`n_NeNMPgc=====mlivbpqbo==HJRB=====RMs===MKMN

`NMNN=======b`b^NerQoT======bib`qolivqf`========RMs====QKT

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`NMNP=======b`b^NmbbPPN=====bib`qolivqf`========NUs====PPM

`NMNQ=======b`b^NedbQTM=====bib`qolivqf`========RMs=====QT

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Содержание PV-M2738 Operating

Страница 1: ...LP SLP more than 40 dB Hi Fi Stereo SP LP SLP more than 60 dB Wow and Flutter Normal Mono SP Less than 0 2 WRMS LP Less than 0 3 WRMS SLP Less than 0 4 WRMS Hi Fi Stereo Less than 0 015 WRMS Broadcast...

Страница 2: ...Power Supply Signal Process OSD Audio Amp System Control Servo TV Y C Process C B A 4 2 Junction C B A 4 4 TV Main C B A 4 6 CRT C B A 4 8 Head Amp C B A 4 8 TV Stereo C B A 4 9 Hi Fi Audio C B A 4 9...

Страница 3: ...handling the tube 8 After servicing make the following leakage current checks to prevent the customer from being exposed to shock hazards LEAKAGE CURRENT COLD CHECK 1 Unplug the AC cord and connect a...

Страница 4: ...herwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity ESD sufficient to damage an ES device NOT...

Страница 5: ...gW 5 hf V Xf g e e g7 Y hf V 1f g e e f J Yhg V L e g e e fW Y hg V Xe g e e e W Y V X g e eW Y V X g e W Y V X g e L W Y V O2 K H V hO2 0M I4 6K 5 V I4 6K g Y V X I4 6K Y V X I4 Y V X W Y V K O Y V...

Страница 6: ...e f 0Y 3T5 J X e hV Y Y V4 e e h X T26T2 W26X e h 1 B 7 B1 e h e h X C 3 C5 e h R40R40R4 V40Y e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e e L J e 3 K O 5 e V4 0Y e Blank Tape No Vid...

Страница 7: ...7 B1 h W Y e h e e h e h T C5 3 C5 heI40M e h R MI40Y V40Y e e 6X W e heW T2 g 6KO2 e 1 7 e he MI g X e e heS U h X N H e T e he g S J L e R R e heV Y f R MI4 e e e e e e e e e e e e e e e e e e e e e...

Страница 8: ...g e J V 5eW Yhf O2 6K V 1e W 1e g e 7 X H W Y heW2 W 6X hfN L 3 Y L g e V 5 7 Yhf7 M 3 I 1 hf 31 N W 1 g eJ H J H he J HeJ N e N Lhf N 3 Y L g e7 5e75hf 75 e75 f31 N W 1 g e He Hhf f H L e e3 Y g 5 e...

Страница 9: ...button on the remote control and try the button again 2 Cable Box Universal Remote Control Operation 2 The clock is set VCR Plus Setup is complete Before you begin make sure The Remote Control may be...

Страница 10: ...D 0 1 2 3 4 4 Explanation of Codes Code No SERVICE MODE 2192 TV Screen Fault Code Cassette Down SW and S Tab SW Data Take Up Photo and Supply Photo Sensor Data Present mechanism position code Lock cod...

Страница 11: ...n does not require the use of Exten sion Cables However for more extensive servicing Exten sion Cables should be used 1 Basic Service Position Service Position 1 1 Remove Rear Cover VCR Unit TV Power...

Страница 12: ...ing Coil Connector CAUTION HOT CIRCUIT DO NOT touch Power circuit during service Stereo Amp C B A Insulated material 2 Service Position with Extension Cable Kit In Service Position with Extension Cabl...

Страница 13: ...ow Wire 4 pin b 8 Pin Connector P6002 on the Main C B A c 14 Pin Connector P6201 on the Main C B A d Set Mode Select SW on the Mode Select SW Ass y to EJECT position and install onto Mechanism Chassis...

Страница 14: ...turn this SW on Note To avoid damaging the connectors on Main C B A it is necessary to secure connectors with tape as shown 5 Set Mode Select SW on the Main C B A to Service Position 6 Plug the AC pl...

Страница 15: ...d GND INSTALLATION OF VCR UNIT CAUTION 1 Swing the Cassette Door Lid all the way open until the Cassette Door tab clears the Opener Lever 2 Make sure that all guide tabs are aligned properly Then pres...

Страница 16: ...otor Unit Fig 5 2 3 Remove the tape from the tape path 4 Rewind the tape into the cassette by rotating the Center Clutch Unit counterclockwise 5 Unhook Spring A of the Drive Rack Unit 6 Remove Screw A...

Страница 17: ...ing 10 0VDC Power Supply again 5 After completing the removal procedure resolder Jumper J6004 Electrical Method Electrical method can only be performed when the mechanism is moved by rotating the Main...

Страница 18: ...rs HOT circuit on TV Power C B A Anode Lead Degaussing Coil Connector Leads Heat Sink Plate Heat Sink Plate Deflection Yoke Connector Leads Speaker Connector Leads A V Jack C B A Leads After servicing...

Страница 19: ...otect Combination VCR from being damaged by accidental shorting that may occur during servicing Also when troubleshooting the above type of Power Supply Circuit a variable isolation transformer is req...

Страница 20: ...Layout Notes for mark Z Tweezers Solder Soldering Iron b Press the part downward with tweezers and solder both electrodes as shown below Fig 8 3 Note Do not glue the replacement leadless component to...

Страница 21: ...they must not be reused Always use a new part when installing a chip part 1st 2nd 3rd B E C 1 CRT C B A 1 TV STEREO C B A or HI FI AUDIO C B A E B C LA7837 2SD1555LBMTV 2SD2499LBMA STR30130 2SC3063 AN...

Страница 22: ...A 3 DISASSEMBLY ASSEMBLY PROCEDURES DISASSEMBLY ASSEMBLY PROCEDURES OF CABINET Disassembly Flowchart Perform all disassembly procedures in the order described in the DisassemblyFlowchart shownbelow W...

Страница 23: ...e clamper 7 Model B C Disconnect Connector P4207 on the Hi Fi Audio C B A and remove the leads from the clampers 8 Disconnect 2 Connectors P805 and P806 on the TV Power C B A and remove the leads from...

Страница 24: ...Locking Tabs B Note Work carefully so as not to break the Locking Tabs Fig D6 3 TV Power C B A Locking Tabs A Screw C Heat Sink Support Angle Sub Frame Screws B 3 TV Power C B A Tabs C Degaussing Coi...

Страница 25: ...per Top Shield Plate Ass y TV Main C B A 6 Stereo Amp C B A Screws D Screw E Ground Wires Clampers Clampers B 7 Top Shield Plate Ass y Top Shield Plate Ass y Disassembly Procedure 1 Release 2 Clampers...

Страница 26: ...in Disassembly Assembly Procedures of Mechanism Frame Screw H A B 9 VCR Chassis Unit Locking Tab E Locking Tab D Screws G Cassette Up Ass y Screw I Screw H Holder Unit Locking Tab F Alignment Project...

Страница 27: ...cking Tab G Then lift it up and remove Fig D12 Reassembly Notes Installation of Cassette Up Ass y 1 Confirm that the 3 pins and Locking Tab G under the Cassette Up Ass y are in each of the 4 Guide Hol...

Страница 28: ...r A Step Loc No Order of steps in procedure Part Part to be removed or installed Prior Step s Steps to be completed prior to the current step Disassembly Method This chart indicates Step Location No o...

Страница 29: ...ottom side of the mechanism chassis Main Lever Through Hole Line Up T Loading Arm Unit S Loading Arm Unit Main Cam Gear Drive Rack Arm Through Holes Through Hole Through Hole Main Lever Drive Arm Load...

Страница 30: ...tallation of Cylinder Unit 1 Install the Cylinder Unit so that the 2 holes on the lower surface of the Cylinder Unit fit over the 2 Guide Pins on the Cylinder Base and loosely secure it with 3 Screws...

Страница 31: ...lity Adjustment procedures Opener Piece Pinch Arm Unit Motor Block Ass y and Audio Control Head Unit Disassembly Procedure 1 Remove the Opener Piece by pulling it upward while releasing 2 Locking Tabs...

Страница 32: ...sis Through hole A as shown 3 Install the Main Cam Gear so that the 2 holes B marked E arealignedwiththeholeonchassis Through hole B as shown E indicates the EJECT position Fig J5 3 2 Holes on Main Ca...

Страница 33: ...oles 2 Turn the P5 Arm Unit to the Capstan Rotor Unit Shaft side 3 Turn the T Brake Unit to the T Reel Table side 4 Position the Main Lever so that the Loading Rack Unit Pin fits in the niche of Main...

Страница 34: ...distinguish between S Reel Table and T Reel Table Fig J8 2 2 Cut Washer A is not reusable Install a new one FullEraseHead TensionArmUnit SSpring Arm and S Reel Table Disassembly Procedure 1 Turn the F...

Страница 35: ...r Unit Capstan Holder Unit and SS Brake Arm Unit Disassembly Procedure 1 Remove the Capstan Belt 2 Cut the Stopper with a cutter to remove 3 Pull up on the Capstan Rotor Unit 4 Remove 3 Screws B Then...

Страница 36: ...as a replacement part Capstan Rotor Unit Capstan Holder Unit and Stopper are not reusable Install all new parts BecauseeveninvisiblescratchesontheCapstanRotor Unit shaft and the Capstan Holder Unit m...

Страница 37: ...Notes 1 Installation of Center Clutch Unit 1 Fit the Center Clutch Unit into the Changing Gear as shown Fig J14 2 2 Cut Washer B is not reusable Install a new one Center Clutch Unit Changing Gear T Lo...

Страница 38: ...ove Top Plate by releasing 2 Locking Tabs A on the left side and 2 Locking Tabs B on the right side of the Top Plate 2 Remove Wiper Arm Unit by releasing 2 Locking Tabs C Then remove the Holder Unit F...

Страница 39: ...r right as indicated by the arrow 2 Install the Wiper Arm Unit so that the hole on the Wiper Arm Unit is aligned with the hole on the Drive Rack Unit Fig K1 2 2 Installation of Holder Unit 1 Turn the...

Страница 40: ...ate VFK0329 Post Adjustment Driver VFK1301 Silicon Grease VUZS0002 Extension Cable Kit VFK27 Head Cleaning Stick VFK0330 H Position Adjustment Driver VFKS0081 Grease Video Audio Color Bar Monoscope 6k...

Страница 41: ...nch adjust the nut on the Tension Adjust Piece counterclockwise only so that there is a space of 1 mm between the left edge of the P1 Post and the right edge of the Tension Post Make sure that the cen...

Страница 42: ...on 25 2 5g 1 Play back a T120 cassette tape from the beginning for approx 10 to 20 seconds to stabilize tape movement 2 InsertaTensionMeterintotapepathandmeasuretheback tension 3 If the reading is out...

Страница 43: ...an 15mVp p P2 AND P3 POST HEIGHT ADJUSTMENT PRELIMINARY ADJUSTMENT Purpose To properly align the position of the tape with the Cylinder Lead so that the tape runs with stability Symptom of Misadjustme...

Страница 44: ...the tape and insert it again to access the Neutral Tracking position 4 Play back the alignment tape and confirm that the RF envelope appears 5 With Post Adjust Driver adjust P2 and P3 post height so t...

Страница 45: ...Head Symptom of Misadjustment Ifthecontrolsignalisnotproperlypickedup Servo Operation cannot be achieved A Blue screen will be seen in Playback This confirmation is required when the Audio Control He...

Страница 46: ...elope is at maximum 6 Before finding the center of the maximum period of the envelope rotatethefixturebackandforthslightlytoconfirm the limits on either side of the maximum period 7 Push the Tracking...

Страница 47: ...4 Frequency Counter Frequency Range 0 to 150MHz 5 Plastic Tip Driver and Non Metal Driver 6 Isolation Transformer Variable 7 VHS Alignment Tape VFMS0003H6 8 White Pattern Generator HOW TO READ THE ADJ...

Страница 48: ...inimum Model B C Adjust R4951 SEPARATION ADJ so that the signal level is minimum Fig E3 1 8 P4201 GND 4 pin FM VCO ADJUSTMENT Purpose To set VCO free run frequency Symptom of Misadjustment Even when s...

Страница 49: ...2 Press DISPLAY key on the remote control for collapse scan Note Before pressing DISPLAY key on the remote control for collapse scan select the desired control function and move the shaded area to the...

Страница 50: ...US CONTROL Flyback Transformer SCREEN CONTROL Flyback Transformer SUB BRIGHT EVR B DRIVE EVR R DRIVE EVR B CUT OFF EVR G CUT OFF EVR R CUT OFF EVR Specification Refer to descriptions below Input Video...

Страница 51: ...Point Pin 5 of PK5 TV Main C B A or TP49 CRT C B A Adjustment SUB COLOR EVR SUB TINT EVR Specification C 1 50 0 15Vp p Input Video Input Jack Rainbow Color Bar Mode STOP Equipment Oscilloscope NTSC Vi...

Страница 52: ...FOCUS CONTROL Flyback Transformer SCREEN CONTROL Flyback Transformer SUB BRIGHT EVR G DRIVE EVR B DRIVE EVR R CUT OFF EVR G CUT OFF EVR B CUT OFF EVR Specification Refer to descriptions below Input V...

Страница 53: ...y a White Pattern Signal to the Video Input Jack 11 Press DISPLAY key on the remote control again to return for full frame scan 12 Select G DRIVE and B DRIVE in EVR adjustment mode and adjust so that...

Страница 54: ...al Audio signal Service Test Point inhibit sensors defeat auto tracking function connect to 5V TP6009 5V Head SW Test Point Information Test Point with a Test Pin Test Point with a jumper wire across...

Страница 55: ...ation II C B A Operation I C B A Component Side Component Side Component Side 1 5 PK5 PK2 5 pin CRT C B A TP50 TP47E TP49 Foil Side VOLUME UP VOLUME DOWN REW REVIEW PLAY REPEAT POWER FF CUE CH DOWN CH...

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Страница 129: ...s are replaced apply the recommended lubricants or adhesive for better maintenance of the unit Note Parts with no Ref No in EXPLODED VIEW are not supplied And some Ref No will be skipped Be sure to ma...

Страница 130: ...r Unit Capstan Holder Unit and Stopper are supplied as a Capstan Rotor Kit only 2 Capstan Stator Unit Capstan Rotor Unit Capstan Holder Unit and Stopper are supplied as a Capstan Stator Kit only Howev...

Страница 131: ...nt Availability Part Number Silicon Grease Available from Factory VFK1301 Spindle Oil Purchase from Local Supplier Grease Available from Factory VFKS0081 CASSETTE UP COMPARTMENT SECTION 69 4 As an ESD...

Страница 132: ...AFETY NOTICE COMPONENTS IDENTIFIED BY THE SIGN HAVE SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY WHEN REPLACING ANY OF THESE COMPONENTS USE ONLY THE SPECIFIED PARTS CHASSIS FRAME SECTION 1 To A in Cha...

Страница 133: ...MODULATOR UNIT has already been pre adjusted at the factory do not try to adjust the UHF VHF TUNER TV DEMODULATOR UNIT The UHF VHF TUNER TV DEMODULATOR UNIT replacement part is available as a complete...

Страница 134: ...Infrared Remote Control Unit replacement part is available as a complete assembly unit only Do not try to disassemble the Infrared Remote Control Unit However the battery cover is available separatel...

Страница 135: ...s already been pre adjusted at the factory do not try to adjust the UHF VHF TUNER TV DEMODULATOR UNIT The UHF VHF TUNER TV DEMODULATOR UNIT replacement part is available as a complete assembly unit on...

Страница 136: ...qlm rpeflk ibcqIpqvolcl j S hbf NPP qmaVTOMRM _lqqlj rpeflk ibcqIpqvolcl j S hbf NPQ qmaVTOMQV _lqqlj rpeflk ofdeqIpqvolcl j S hbf NRP qjjTTQNO i jmbo R hbf NRQ qjjTTQNP i jmbo R hbf NTQ qruTTNNR eb q...

Страница 137: ...ELECTRICAL REPLACEMENT PARTS LIST E1 E2 E4 E5 E6 E7 E9 E11 E12 E16 E17 E18 PRINTED CIRCUIT BOARD ASSEMBLY bN sbmpPMRMb j fk K_K K bKpKaK oqi hbf E F bN sbmpPMRMa j fk K_K K bKpKaK oqi hbf E _I F bO s...

Страница 138: ...LNMt Nh oPMPU boapOqgOOO OKOh oPMPV bogSdbvgOTOs jdc efm NLNMt OKTh E F oPMQM bogSdbvgNMPs jdc efm NLNMt NMh E F oPMQO bogSdbvgNMPs jdc efm NLNMt NMh oPMQP bogSdbvgOOOs jdc efm NLNMt OKOh E F oPMQQ bo...

Страница 139: ...oQMPP bogSdbvgUONs jdc efm NLNMt UOM oQMPQ bogSdbvgNMPs jdc efm NLNMt NMh E _I F oQMPS bogSdbvgPPPs jdc efm NLNMt PPh E _I F oQMPT boapOqgOOP OOh E _I F oQNMN bogSdbvgRSPs jdc efm NLNMt RSh oQNMO bog...

Страница 140: ...pOqgOON OOM oSOMN bsk v MP_NR s of _ib NMMh E F bsjcSp MM_NR s of _ib NMMh E _I F oSOMO bogSdbvgNMQs jdc efm NLNMt NMMh oSOMP bogSdbvgPPPs jdc efm NLNMt PPh oSOMQ bogSdbvgNMOs jdc efm NLNMt Nh oSOMR b...

Страница 141: ...Ms MKMN PMRQ b rsNeNMPwck efm HUMBJOMB RMs MKMN E _I F PMRR b rsNbNMQwck efm HUMBJOMB ORs MKN PMRS b rsN OOQwck efm HUMBJOMB NSs MKOO PMRT b rsNbNMQwck efm HUMBJOMB ORs MKN PMRU b rsNeNMPwck efm HUMBJ...

Страница 142: ...s OO SOOO b rsNeOTOh_k efm RMs OTMMm SOOP b rsNeNMPh_k efm RMs MKMN SOOQ b b Mgh NMN bib qolivqf SKPs NMM SOOR bogSdbvMoMMs jdc efm NLNMt M SOOU s vp_o NMQju bo jf HJOMB NSs MKN SOPN b b N h NMM bib q...

Страница 143: ...SdbvgQTPs jdc efm NLNMt QTh oVPNP bogSdbvgQTPs jdc efm NLNMt QTh oVPNQ bogSdbvgQTPs jdc efm NLNMt QTh oVPNS bogSdbvgQTPs jdc efm NLNMt QTh oVPNT bogSdbvgQTPs jdc efm NLNMt QTh oVPNU bogSdbvgPVPs jdc e...

Страница 144: ...Mh hbf oVOMT bogSdbvgPPOs jdc efm NLNMt PKPh oVONN bogSdbvgQTOs jdc efm NLNMt QKTh CAPACITORS QOMN b n_NeQTPhc mlivbpqbo RMs MKMQT QOMO b n_NeQTPhc mlivbpqbo RMs MKMQT QOMP b b Mgh PPM bib qolivqf SKP...

Страница 145: ...ptfq e ptSPMU bsnm aMRo mrpe ptfq e ptSPNM bsnm aMRo mrpe ptfq e ptSPNN bsnm aMRo mrpe ptfq e ptSPNO bsnm aMRo mrpe ptfq e MISCELLANEOUS bPS sjupMRTR iba pm bo AUDIO VIDEO JACK C B A A INTEGRATED CIRC...

Страница 146: ...dbvgQTPs jdc efm NLNMt QTh oPRMO bogSdbvgRSMs jdc efm NLNMt RS oPRMP bogSdbvgRSMs jdc efm NLNMt RS oPRMQ bogSdbvgRSMs jdc efm NLNMt RS oPRMR bogSdbvgRSMs jdc efm NLNMt RS oPRMS bogSdbvgRSNs jdc efm NL...

Страница 147: ...s vp_obQTPhu bo jf ORs MKMQT hbf E _I F QSMU b N jNMM_ bib qolivqf NSs NM QSMV b N jNMN_ bib qolivqf NSs NMM QSNM s vp_obQTPhu bo jf ORs MKMQT hbf QSNN b N jQTM_ bib qolivqf NSs QT QSNO b N jNMM_ bib...

Страница 148: ...sobp OqhUOR plifa HJNMB NLOt UKOj lo sobp OqhUORq plifa HJNMB NLOt UKOj oTMMO boapOqgOTN OTM oTMPM boapOqgNUO NKUh oTMPN boapOqgNUO NKUh oTMPO boapOqgNUO NKUh CAPACITORS QMN b b NedbOoO bib qolivqf R...

Страница 149: ...PHcNMp p obt tLt peboIpqbbi bQV uvkPHcUp p obt tLt peboIpqbbi bRN qg SPNV crpb eliabo bRO qr TTRQO c_q pefbia mi qbIpqbbi hbf bRP qjjNSQUMJN i jmbo bUM irpSPMMO pr_ eb q pfkh mi qbIpqbbi hbf TV MAIN C...

Страница 150: ...i bV sbmpMQNOMdN raflLsfabl g h K_K K oqi bV sbmpMQNOUcN raflLsfabl g h K_K K oqi bNN sbmpQMNQc pqbobl jm K_K K oqi bNN sbmpQMNQd pqbobl jm K_K K oqi bNO iomOPMMV qs mltbo K_K K oqi bNS iojSNMMRa qs j...

Страница 151: ...Printed in Japan...

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