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– 9 –

– 10 –

M-430

5-1. BLOCK DIAGRAM

SECTION 5

DIAGRAMS

0000

EAR jack (J101)

digital frequency
counter

set

16 

test tape
WS-24: tape speed 2.4cm/s
WS-12: tape speed 1.2cm/s
(3 kHz, –10 dB)

Remove the
plate, blind.

RV601
1.2cm/s

RV602
2.4cm/s

speed adjustable resistors

(REC / PB)

HRPE901

REC/PB/ERASE

HEAD

(ERASE)

D102

BATT

DRY BATTERY

SIZE "AA"

(IEC DESIGNATION R6)

2PCS, 3V

-

+

DC IN 3V

CN101

SP101

SPEAKER

J101

EAR

MIC901

MIC

S101-4

(REC/PB)

PB     REC

S101-3

(REC/PB)

PB     REC

S101-2

(REC/PB)

PB     REC

S101-1

(REC/PB)

PB     REC

+3V

+3V

+3V

1

15

3

14

9

8

4

ALC

PRE / POWER AMP

IC101

S602

2.4 cm

1.2 cm

2.4 cm

1.2 cm

TAPE

SPEED

RV601, 602

TAPE SPEED

RV101

VOL       

RV602

1.2 cm

RV601

2.4 cm

MOTOR SERVO

IC601

M

+

_

M901

MOTOR

S601

        PAUSE

OFF     ON

S102

(POWER)

: REC

: PB

Signal Path

04

-1

-2

Tape Speed Adjustment

Setting:

VOL control : mechanical mid

Procedure:
• Reform 2.4 cm/s speed adjustment before 1.2 cm/s speed

adjustment mode : playback

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.

1. Tape Speed : 2.4 cm/s

Playback WS-24 (tape center part) and adjust RV602 so that
reading on the digital frequency counter becomes 3,000 Hz.

2. Tape Speed : 1.2 cm/s

Playback WS-12 (tape center part) and adjust RV601 so that
reading on the digital frequency counter becomes 3,000 Hz.

Specification Value:

Tape Speed

Frequency counter

2.4 cm/s

2,880 to 3,120 Hz

1.2 cm/s

2,850 to 3,150 Hz

Содержание M-430 - Microcassette Recorder

Страница 1: ... earphone Power output at 10 harmonic distortion 160 mW Power requirements 3 V DC batteries size AA R6 2 External DC 3 V power sources Dimensions w h d Approx 62 2 121 5 24 3 mm 2 1 2 4 7 8 31 32 in incl projecting parts and controls Mass Approx 125 g 4 5 oz SPECIFICATIONS Ver 1 0 1999 02 Supplied accessory Microcassette tape MC 30 1 Design and specifications are subject to change without notice M...

Страница 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 7 3 MECHANICAL ADJUSTMENTS 8 4 ELECTRICAL ADJUSTMENTS 8 5 DIAGRAMS 5 1 Block Diagram 10 5 2 Printed Wiring Board 11 5 ...

Страница 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...

Страница 4: ...y cassette halfway 1 3 4 precision screwdriver or equivalent cabinet front lid assy cassette top view precision screwdriver or equivalent 9 lid assy cassette 5 8 6 7 Set Lid assy cassette Cabinet rear assy Main board Mechanism deck Head ceramic Lid battery case 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 ...

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

Страница 6: ...4x3 0 locking 8 M1 4x3 0 locking 6 mic assy 9 MAIN board 1 Unsolder the 2 places 2 Unsolder the 2 places 3 Unsolder the 4 places 4 Unsolder the 2 places 5 Unsolder the 2 places 4 button STOP 2 button REC 1 3 button PLAY mechanism deck MZ 430 99 ...

Страница 7: ... 7 2 6 HEAD CERAMIC 1 claw 3 M1 4 special head 4 M1 4 special head 2 arm pinch roller assy 5 head ceramic ...

Страница 8: ...t Mode Torque Meter Meter Reading 5 13 g cm Forward CQ 103M 0 07 0 180 oz inch more than 30 g cm Fast Forward CQ 201M more than 0 42 oz inch more than 30 g cm Rewind CQ 201M more than 0 42 oz inch Tape Tension Measurement Mode Tension Meter Meter Reading more than 20 g Forward CQ 403M more than 0 28 oz SECTION 3 MECHANICAL ADJUSTMENTS Record Playback Erase Head Azimuth Adjustment Setting VOL contr...

Страница 9: ...L RV602 1 2 cm RV601 2 4 cm MOTOR SERVO IC601 M _ M901 MOTOR S601 PAUSE OFF ON S102 POWER REC PB Signal Path 04 1 2 Tape Speed Adjustment Setting VOL control mechanical mid Procedure Reform 2 4 cm s speed adjustment before 1 2 cm s speed adjustment mode playback 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...

Страница 10: ...arts extracted from the component side b Pattern from the side which enables seeing 1 A B C D E F G H 2 3 4 5 6 7 8 9 10 11 12 13 HRPE901 REC PB ERASE HEAD REC PB ERASE HD HD HE HE D102 G 3 IC101 D 6 IC601 E 9 Semiconductor Location Ref No Location ...

Страница 11: ... designation U 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 aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path E PB a REC M 430 IC Block Diagram IC601 LA5521MTP 2 1 2 3 4...

Страница 12: ...1 LID BATTERY CASE BLACK US AEP EE E 1E MX 17 3 031 371 11 LID BATTERY CASE SILVER AEP E 1E 18 3 037 004 01 PLATE SHIELD 19 X 3377 316 1 CABINET REAR ASSY BLACK US AEP EE E 1E MX 19 X 3377 317 1 CABINET REAR ASSY SILVER AEP E 1E 20 3 035 255 01 SCREW 1 7X16 BLACK US AEP EE E 1E MX 20 3 035 255 11 SCREW 1 7X16 SILVER AEP E 1E 21 3 358 363 41 PLATE BLIND BLACK US AEP EE E 1E MX 21 3 358 363 61 PLATE...

Страница 13: ...21 ELECT 47uF 20 4V C120 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C122 1 163 038 00 CERAMIC CHIP 0 1uF 25V C123 1 104 402 11 ELECT 220uF 20 4V C124 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C127 1 163 038 00 CERAMIC CHIP 0 1uF 25V C129 1 163 038 00 CERAMIC CHIP 0 1uF 25V C601 1 126 153 11 ELECT 22uF 20 6 3V C602 1 109 982 11 CERAMIC CHIP 1uF 10 10V C603 1 126 153 11 ELECT 22uF 20 6 3V JACK CN101 1 ...

Страница 14: ...1 SWITCH PUSH 1 KEY POWER S601 1 572 922 11 SWITCH SLIDE PAUSE S602 1 692 298 11 SWITCH SLIDE TAPE SPEED THERMISTOR POSITIVE THP601 1 810 552 11 THERMISTOR POSITIVE THP602 1 810 794 11 THERMISTOR POSITIVE MISCELLANEOUS HRPE9011 500 593 11 HEAD CERAMIC REC PB ERASE M901 1 698 533 11 MOTOR DC CAPSTAN REEL including PULLY MIC901 1 542 386 11 MICROPHONE ELECTRET CONDENSER MIC SP901 1 505 384 11 SPEAKE...

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