Sony mdr if 320 rk 2 service manual

Page 1

MDR-IF3ZORK2

SERVICE MANUAL

US Model
Canadian Model
AEP Model

UK Model

E Model
Australian Model
Tourist Model

MDR-IF320RK2 ls composed of the following models.

MlCROFlLM

Power source DC IN 9V jack accepts power
supplied from the AC power
adaptor for use on the following

voltages:
Where purchased Operating
voltage
USA/Canada 120 V AC, 60 Hz
UK 240 V AC, 50 Hz

European countn'es 220 - 230V AC, 50 Hz

110 - 120 V/220 - 240 V
AC, 50/60 Hz

Other countries

Cordless Headphones MDR-IF320R2
Transmitter TMR-lF320Fi
SPECIFICATIONS
General Audio input Phono jacks/stereo mini jack
Modulation system Dimensions Approx. 106 X 194 x 86 mm
Frequency modulation (41/4 X 7 3/4 x 3 1/3 in) (w/h/d)
Carrier frequency Mass Approx. 138 g (4.9 oz)
Right 2.8 MHZ
Left 23 MHz HeadPhofies
Frequency response Power source Built-in Nide rechargeable
12 - 24,000 Hz My
Transmitter Mass Approx. 111 g (-l 02)

Built-in Ni-Cd rechargeable battery

Model name
Type
Voltage
Capacity

(IF-100
Ni-Ccl
11 V
100 mAh

Design and specifications are subject to change
without notice.

CORDLESS STEREO HEADPHONES SYSTEM

SONZ

Page 2

TABLE OF CONTENTS

> Getting started

Unpacking Setting up the

transmi er
_cneek :liai you have the lollowing tt
"ems? 1 Connect thz transmitter to audio/
- The lramminer hookups helm depending on the
jack iype:

(D To eonneci Io LINE out or REC
our pale

- AC power adaptor ' Truninlmr

W

0 Connecting curd (plwno plugs H
stereo mini plug)

5%.

- Unirnald'l plug adaptor (stereo mini
jack -- elereo phone plug)

no AUDIO IN Ijuk

connecting
(Md (supplied)
55% Len alqnz
channel (hamlet
(While)
- The hudphonei

to LINE out
or list out

$3

video equipment Selcd an: o! the

SAFETY-RE LATED COMPONENT WARNING"

COMPONENTS IDENI1FIED BY MARK A OR DOTI'ED
LINE WITH MARK A ON THE SCHEMAflC DIAGRAMS
AND IN THE PARTS LIST ARE CRI'HCAL TO SAFE
' OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-

ATTENTION AU couposAN'r AYANT RAPPORT
A LA sEcunrlEl

LEs COMPOSANTS IDENnFlEs PAR uNE MAROUE A
sun LEs DIAGRAMMES SCHEMAHQUES ET LA LISTE
DEs PIECES sour CRITIQUES POUR LA sEcuanE
DE FONCTIONNEMENT. NE REMPLACER CES com-
PosAN'rs QUE PAH DEs PIECEs SONY DONT LEs
NUMEnos sONT DONNEs DANS cE MANUEL ou

DANS LES SUPPLEMENTS PUBLIES PAR SONY.

Section M Page
1_ GENERAL ............................. 2
2_ DISASSEMBLY ......................... 4
3. ELECTRICAL ADJUSTMENTS USHED BY SONY.
3-1. Oscillating Frequency Adjustment ----------- 6
3-2. RF Level Adjustment ---------- - - 6
3-3. Tuning Adjustment - - . 6
3-4. Mute on Point Adjustment ----------------- 7
4. DIAGRAMS
4-1. Printed Wiring Board
- Transmitter Section (T MR-IF320R) - ----- 9
4-2. Schematic Diagram
- Transmitter Section (T MR-IF320R) - ----- 11
4-3. Schematic Diagram
- Headphones Section (MDR-IF320R2) - - - - 13
4-4. Printed Wiring Boards
- Headphones Section (MDR-IF320R2) -- - - - 15
5 EXPLODED VIEWS .................... 17
6. ELECTRICAL PARTS LIST ------------ 19
This section is extracted from SECTION 1
instructlon manual. GENERAL

(9 Ta connucl m .l headphones iaek

lllgni channel
(red)

conneellng :nrd
(rupplied)

lo headuhones
ink m

! mlnl plug)

@-

In heldphonas

unlinmn plug
adamm j
(supplied)

nimnn.
lxk ISM" WALKMAN'. 'rv.
PM" PM) vcn. m

2 it your AC pawer adapior is
equipped with a voltage selector.
belore connecting ine AC power
adlplor to an AC millet, sel il in
me operating voltage in your are-
wiin a screw driver.

AC pm wapior lsllppllod)

3 Connect ihe transmitter to :1 power
same.

on an Ac
out-IE!

A: power
mam
(Warned)

mncm
Wild

Net-l

'DomoolmmlheAUDlolNAjld-nd!
neuemeuneinne IlynlidnnnJht-udn
slpuls rluy in mind.

- we only ilie supphed AC power adaplur. Do
ml in my ulhll AC Pawn dlpwx.

Polarity of in. plug

r If in. plug in the AC pow-r Idapmr does nm iii
in in. AC miller. meme mpphtd AC plug
idnpiwr.

- wnenymmmn iiemneernim direeily
In in eirpnm ixk. Ihe ludm signal wlll nu be
aulpunhmffi ine l'lghldunvlll. in mi. a
52,1!th separately sold POM-IC- phi;
adaption

- WALKMAN n I «glue-ed naaernnrknlsony
Cnrponlton.