Sony M-540V - Microcassette Recorder Service Manual Download Page 17 | Manualshive

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M-540V

MEMO

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Summary of Contents for M-540V - Microcassette Recorder

Page 1: ...aural Speaker Approx 3 6 cm 17 16 in dia Tape speed 2 4 cm s 15 16 ips 1 2 cm s 15 32 ips Frequency range 300 4 000 Hz with TAPE SPEED switch at 2 4 cm s Output Earphone jack minijack for 8 300 ohms earphone Power output at 10 harmonic distortion 250 mW Power requirements 3 V DC batteries R6 size AA 2 External DC 3V power sources Dimensions w h d Approx 62 2 121 5 24 3 mm 21 2 47 8 31 32 in incl p...

Page 2: ...Replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be dam aged by heat 1 GENERAL 3 2 DISASSEMBLY 2 1 Lid Assy Cassette 4 2 2 Lid Battery Case 5 2 3 Cabinet Rear Assy 5 2 4 Main Board 6 2 5 Mechanism Deck 6 2 6 Head Ceramic HRPE901 7 3 MECHANICAL ADJUSTMENTS 8 4 ELECTRICAL ADJUSTMENTS 8 5 DIAGRAMS 5 1 Block Diagram 11 5 2 Printed Wiring Boar...

Page 3: ...le with adhesive tape xZ Microphone REC z PAUSE m CUE REVIEW M xZ EAR VOR TAPE SPEED TAPE COUNTER MIC PLUG IN POWER BATT Press or slide xZ z during playback the unit becomes in the recording mode Push up mCUE MREVIEW toward MREVIEW during the recording Release the button at the point to start playback Slide PAUSE in the direction of the arrow The REC BATT M 540V BATT M 430 or REC M 640V lamp goes ...

Page 4: ...e halfway 1 3 4 precision screwdriver or equivalent cabinet front lid assy cassette top view precision screwdriver or equivalent 9 lid assy cassette 5 claw 8 6 axis 7 axis Note When removing the cassette lid put cloth on the end of a screwdriver or use a polyacetal driver to avoid damage to the cabinet Set Lid assy cassette Cabinet rear assy Main board Mechanism deck Head ceramic HRPE901 Lid batte...

Page 5: ...Y Note When installing fit the knobs and switches 2 2 LID BATTERY CASE 3 two claws 4 lid battery case 2 1 2 1 two screw 1 7x16 3 screw B1 7x5 tapping 2 two screw 1 7x16 5 claw 4 two claws switch switch knob knob 6 cabinet rear assy ...

Page 6: ...ic assy qa MAIN board 3 Unsolder the 4 places 2 Unsolder the 2 places 1 Unsolder the 2 places 4 Unsolder the 2 places 5 Unsolder the 2 places 4 button STOP 2 button REC belt flywheel belt counter tape How to apply the belts 1 3 button PLAY 5 mechanism deck MZ 530V 99 M901 flywheel assy ...

Page 7: ...7 M 540V 2 6 HEAD CERAMIC HRPE901 1 claw 3 M1 4 special head 4 M1 4 special head 2 arm pinch roller assy 5 head ceramic HRPE901 ...

Page 8: ...Location Test Tape SECTION 4 ELECTRICAL ADJUSTMENTS 2 Turn the adjustment screw to obtain the maximum reading on level meter Note Several peaks may appear but the maximum EAR jack J101 set 16 Ω test tape S 2 A030 3 kHz 20 dB level meter First remove the cover AZ Remove the cover AZ head azimuth adjustment screw Mode Forward Fast Forward Rewind Torque Meter CQ 103M CQ 201M CQ 201M Meter Reading 0 4...

Page 9: ...cm s WS 12 tape speed 1 2cm s 3 kHz 10 dB Frequency difference between the beginning and the end of the tape should be within 0 5 2 4 cm s 15 Hz 1 2 cm s 15 Hz Adjustment Location First remove the plate blind Remove the plate blind RV601 2 4cm s RV602 1 2cm s speed adjustable resistors 1 Tape Speed 2 4 cm s Playback WS 24 tape center part and adjust RV601 so that reading on the digital frequency c...

Page 10: ... R F GVN VOX SPEED ALC VOX 20k REC 1 2 PRE GND EQ IN MIC IN Vref OUT MIC VCC R F OUT LED DRIVE R P SW PAUSE P R MUTE GVN CONT GVN Vref Vs GVN GND GVN OUT PRE NF PRE OUT REG IN REG OUT ALC CONT VOX CONT VOX DELAY GNV SPEED UP AUT STOP CONT AUT STOP IN PWR IN PWR OUT1 PWR GND PWR OUT2 Vcc IC Block Diagrams IC101 LA4168ML TE L SECTION 5 DIAGRAMS ...

Page 11: ...RE OUT 7 VOX VOR DELAY B 3V ALC MIC VCC S101 3 4 REC PB PB REC PB REC OFF L H S103 VOR RV101 VOL S602 1 2 TAPE SPEED S601 PAUSE D102 REC BATT RV601 TAPE SPEED 2 4cm RV602 TAPE SPEED 1 2cm 1 2cm 2 4cm 20 24 19 11 14 POW IN POW OUT2 12 16 22 POW OUT1 GVN OUT GVN VREF GVN CONT IC101 2 2 POWER AMP LED DRIVE 23 R P SW R P PAUSE Q109 REC LED SWITCH Q106 REC LED CONTROL SWITCH Q104 VOR SWITCH Q108 REC LE...

Page 12: ...tion D102 D 3 D103 B 3 IC101 C 5 Q101 C 4 Q102 C 4 Q103 D 3 Q104 D 6 Q105 D 3 Q106 D 6 Q107 D 4 Q108 D 5 Q109 D 6 Q110 B 6 Q111 B 7 Q112 C 4 Q113 D 5 Semiconductor Location Note Y parts extracted from the conductor side a Through hole Pattern from the side which enables seeing Pattern of the rear side ...

Page 13: ...se specified C panel designation A B Line H adjustment for repair Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal Voltage is dc with respect to ground under no signal condition no mark PB REC Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path E PB a REC Refer to page 10 for IC Blo...

Page 14: ...4 3 036 882 01 SPACER JACK 36 3 037 556 01 SHEET A GROUND 38 3 037 557 01 SHEET B GROUND SP901 1 529 188 11 SPEAKER 3 6cm MIC901 1 542 386 11 MICROPHONE ELECTRET CONDENSER MIC 6 2 MECHANISM DECK SECTION MZ 530V 99 Ref No Part No Description Remark Ref No Part No Description Remark M901 HRPE901 51 52 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 88 89 ...

Page 15: ...11 CERAMIC CHIP 0 22uF 10 00 10V C128 1 162 964 11 CERAMIC CHIP 0 001uF 10 50V C129 1 124 434 00 ELECT 220uF 20 00 4V C130 1 164 156 11 CERAMIC CHIP 0 1uF 25V C131 1 162 968 11 CERAMIC CHIP 0 0047uF 10 50V C132 1 164 156 11 CERAMIC CHIP 0 1uF 25V C133 1 113 619 11 CERAMIC CHIP 0 47uF 10V C134 1 126 153 11 ELECT 22uF 20 6 3V C136 1 126 153 11 ELECT 22uF 20 6 3V C137 1 165 176 11 CERAMIC CHIP 0 047u...

Page 16: ...3 11 METAL CHIP 220 5 1 16W R138 1 216 833 11 METAL CHIP 10K 5 1 16W R139 1 216 827 11 METAL CHIP 3 3K 5 1 16W R140 1 216 801 11 METAL CHIP 22 5 1 16W R141 1 216 803 11 METAL CHIP 33 5 1 16W R144 1 216 833 11 METAL CHIP 10K 5 1 16W R147 1 216 833 11 METAL CHIP 10K 5 1 16W R149 1 216 839 11 METAL CHIP 33K 5 1 16W R150 1 216 849 11 METAL CHIP 220K 5 1 16W R151 1 216 835 11 METAL CHIP 15K 5 1 16W R15...

Page 17: ...17 M 540V MEMO ...

Page 18: ...cking the version allows you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2001 02 New M 540V ...

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