Sony srf m 33 service manual

Page 1

SERVICE MANUAL

SRl-M33/M43_

US Model

AEP Model

E Model

SRF-M33

US Model
Canadian Model
AEP Model

E Model

SRF-M43
This photo is SRF-M33. This photo is SRF-M43.
SPECIFICATIONS
Frequency range
US, Canadian model: Features
Frequency Scan step
FM: 87.5 - we MHz 0.1 MHz ' AMFM Stem, P- (thm L°°k°d A a with: Tim
AM: 530 - 1710 kHz to kHz LOOP) SynihBSIzed tecelver- " interval Display
FM: 87.5 _ 108 MHz 005 MHz - Up to 5 stations in each band. AM or US, 12 h
AM: 53 _ 1710 kHz 9 kHz FM can be preset in the desired order. Canadian 10 kHz 5 $2:
I MEGA BASS selector for powerful bass model y
AEP. E, 6, IT modal
sound (SRF-Mda only). AEPv E 24 h
Frequency Scan step G, T 9 kHz wag:
FM: 37.5 _ 106 MHz 0.05 MHz Note on AM tuning interval and time model
AM: 531 - 1602 kHz 9 kHz display
FM: 87.5 - 108 MHz ott MHz The AM tuning interval and time display
AM: 530 - 1610 kHz 10 kHz diflers depending on areas. The tuning

The lrequency display is raised or

lowered by steps of 111 MHz. (Example:

Frequen 88.05 MHz is displayed as
38.0 M 2".)

intermediate Irequency FM: 10.7 MHz
AM: 450 kHz
Antennas FM: Earphone oord antenna
AM: BuilHn Ierrite bar
antenna
Output Earphone lack (stereo
minijank)

PW °P M33 11 mW+17 rnW

M43 17 mW+17 mW

(at 10% harmonic distortion)

Power requirement
3V DC. two R6 (size AA)
batteries

33 9 M33 Approx. 24 hours

M43 Approx. 23 hours

with Sony SUMG (NS)
batteries

Dimensions Approx. 78 x 97 x 30 mm
wlhld

3/nx37/u x 13/ inches)
excl. projecting pans and
controls

Weight Approx. 145 g (5.2 02.)
including batteries.

Aooeuorin supplied
Stereo earphones (1)
Bell holder (1)

Design and specifications subject to change
without notice.

interval of this unit is Iactory-set to 10kHz
or to 9kHz to match the frequency
allocation system 01 the country as listed.
You can change the interval. (See page4
Changing AM Tuning lnterval".)

CG : Germany model
IT: Italian model

NOTES ON CHIP COMPONENT REPLACEMENT

0 Never reuse a disconnected chip component

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

AM/EM STEREI] PLL
SYNTHESIZED RECEIVER

ONY;

Page 2

SECTlON 1
GENERAL

SRF-M33/ M43
This section is extracted from

1-1. LOCATION OF CONTROLS instruction manual.

O, (headphones) jack VOL (volume) knob KEY PROTECT switch

POWER switch

MEGA BASS switch

(SRF-M43 only) TUNE/TIME SET buttons

(+ or -)

BAND button
(FM/AM)

SENS (sensitivity)
selector (DX/ LOCAL)
(US. Canadian model)

FM MODE seiector
(STEREO/MONO)

(AEP, E. Germany. Italian model)

MEMORY PRESETS buttons
(1'5)