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3

M-540V

SECTION 1

GENERAL

Recording

Make sure that nothing is connected to MIC (M-640V only).

1

Press the reset button of the TAPE COUNTER (M-640V/
540V only).

2

Press 

xZ

 and insert a standard microcassette with the side

to start recording facing the lid.

3

Select the desired tape speed.

2.4 cm

 for optimum sound (recommended for normal use):

A 30-minute recording can be made using both sides of the
MC-30 microcassette.

1.2 cm

 for longer recording time: A 60-minute recording can

be made using both sides of the MC-30 microcassette.

4

Set VOR to H, L or OFF (M-640V/540V only).
If you set VOR to H or L, the unit automatically starts
recording the sound and pauses when there is no sound
(you can save tapes and batteries).

H :

 To record at meeting or in a quiet and/or spacious place.

L :

 To record for dictation or in a noisy place.

When the sound is not loud enough, set it to OFF, or the unit
may not start recording.

5

Press 

z

.

n

 is pressed simultaneously and recording starts. While

the tape runs, the REC lamp or REC/BATT lamp lights and
flashes depending on the strength of the sound (M-640V/
540V only).
Recording level is fixed.

To

Stop recording

Start recording during
playback

Review the portion just
recorded

Pause recording

Take out a cassette

Note

Select the 2.4 cm tape speed for recording, if you play back the recorded
tape with another unit. Otherwise, the sound quality may be changed.

Notes on VOR (Voice Operated Recording) (M-640V/540V only)

• The VOR system depends on the environmental conditions. If you

cannot get the desired results, set VOR to OFF.

• When you use the system in a noisy place, the unit will stay in the

recording mode. If the sound is too soft, on the contrary, the unit will

not start recording. Set VOR to H (high) or L (low) depending on the

conditions.

To monitor the sound

Connect an earphone (not supplied) to EAR jack. The monitor
volume cannot be adjusted by VOL.

To prevent a cassette from being accidentally recorded
over

Break out and remove the cassette tabs. To reuse the cassette for
recording, cover the tab hole 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 

m

CUE/

M

REVIEW toward

M

REVIEW 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 off.

xZ

Playing a Tape

1

Insert a cassette with the side to start playing facing the lid.

2

Select the tape speed to the same speed as that used for
recording.

3

Press 

n

.

4

Adjust the volume.

To

Stop playback/stop fast
forward or rewind*

Pause playback

Fast forward

Rewind

Search forward during
playback (CUE)

Search backward during
playback (REVIEW)

* If you leave the unit after the tape has been wound or rewound, the

batteries will be consumed rapidly. Be sure to depress 

xZ

.

Note

If the tape is completely wound or rewound while searching forward/
backward during playback (CUE/REVIEW), the 

m

CUE/

M

REVIEW

switch may not return to the center position when you release the switch.
In this case, push back the switch to the center to start playback.

If you plug in headphones (not supplied) to the EAR jack, you
will get monaural output from both left and right channels.

To increase the playback speed (M-640V only)

Slide the FAST PB switch in the direction of the arrow. The
playback speed will be increased.
To return to the original speed, slide the FAST PB switch to the
original position.

At the end of the tape

In the recording or playback mode, the tape stops at the end of
the tape and the locked buttons will be released automatically
(Automatic shut-off mechanism).
After fast forward or rewind, be sure to set 

m

CUE/

M

REVIEW back to the center.

EAR

VOL

n

>

 PAUSE

m

 CUE/

REVIEW 

M

xZ

TAPE SPEED

BATT

Press or slide

xZ

Slide 

>

PAUSE in the direction of the

arrow.
The REC/BATT (M-540V) or BATT (M-
430) lamp, or BATT lamps (M-640V) go
off.

Slide 

m

CUE/

M

REVIEW toward

m

CUE during stop.

Slide 

m

CUE/

M

REVIEW toward

M

REVIEW during stop.

Keep 

m

CUE/

M

REVIEW pushed

down during playback and release it at
the point you want.

Keep 

m

CUE/

M

REVIEW pushed up

during playback and release it at the
point you want.

FAST PB

This section is extracted
from instruction manual.

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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