Sony m 405 service manual

Page 2

ii -L>Ub/5Ob

PARTS IDENTIFICATION

This section is extracted from
instruction manual.

El EAR (earphone) lack
El (7 VOL (volume) control
E] Cassette holder

El TAPE COUNTER and counter
reset button
(M-SOS only)

TAPE SPEED (2.4cm/1.2cm)

E BATT (battery) indicator
(M-SOS only)

El muss switch
E] . (recordlng) button

« CUE-last lomaru/
» REVIEW-rewlnd control

IE <(playbeok) button

MAINTENANCE

Cleaning the heads

Clean the tape heads alter every 10 hours ol use Io enjoy optimum
sound. Moislen a cotton swab or is soft cloth wilh alcohol and wipe the
pans shown in the illustration.

Recordlplayback head

Cepslan Erase head

Pinch-roller

Cleaning the casing

Clean the casing with a soil cloth slightly moistened with water or a
mild detergent solution. on not use alcohol. benzine or lhinner as they
may mar the finish.

Notes on Microcassette

To rouse I cassette
Cover the slot with plastic taper

To protect cassettes lrorn
accidental ensure

Break Gui and
remove the tab,

Plasiic tape

71" @ll

@I/I
i=6?

This unit uses only standard Microcassenes. Non standard
casseiles cannot be used because their L" dimension (see
illustration) is diflerenlt

Only standard

Standard Microcassenes have Non slandlrd
-.___ a small indentation
~-~\_0r- on side A.
- rox. Approxi ,
®"I@ Mm 2.5 mm ©ll©
L 1-
L raw

witch (left side) musket/MOP) bum"

9'99 C 'N V (memfi' FAST PB (last playback)
power Input) lack (left side) switch

Speak-r (built-in) Handstrap catch

IE am. compartment (rear) Handslrap (supplied with
Mic (built-in microphone) M-505 only)

SERVICING NOTE

Repairing printed resistor

Cut both sides of the resistor and solder the carbon resistor
having same value in place of primed one of the conductor
side.

l/4W carbon resistor is supplied for the replacing part of
the printed resistor.

Notes on chip component replacamant
- Never reuse a disconnected chip component.

- Notice that the minus side of a tantalum capacitor may be
damaged by heat.