Sony ifs 190 service manual

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IFS-190

SERVICE MANUAL

AEP Model

lnlrared wavelength 850 nm

Modulation

Garner lrequency

Eileclive range

Outpm

Speaker sensitivlly

Frequency mooulalion

Flighl channel: 28 MHZ

Left channel: 23 MHZ

Approx. 7 m (23 It) (wan me
TMR-IFIOK)

Approx. 6 m (lg n.) (wnh lhe TMR-IFS/
mammal

10 leO W (9 V DC WIIh bananas/AC
power adaplor)

94 dB SPL/Wlm

Power supply DC 9 V (6x R20 (svze D) binary/DC IN
9 v jack) per unit
Battery lile
Banery type Sound level at 69 dB spuI

Sony banery SUM-1 (83)

approx. 100 hours

Dimensions

8»qu alkaline ballery Alglgfl approx; 200 hours

Approx, 100 x IODOX160 mm (w/n/d)

(4 x 393/3 x 63/3 In.)

Incl projecllng pans and controls/ excl.
base panel

SPECIFICATIONS

Wesgm

Base dimensions

Approx 3 kg (3 ID, 10 oz)
per unit excl. banenes and other
accessories

Approx. 220 x 5 x 240 mm (win/d)
(537 x 7/32 x 912 in.)

Supplied accessories

Connecting cord (stereo mlm plug ~
PIN plug x 2 wim bulll-in resistance) (1)
Connectmg cord (PIN Jack x2 ~ open
and) (V)

AC power adaptor $043194! (2)
Baal-aw case (2)

Measured at 05 m (1.6 n.) from the speaker unil,

Design and specifications subjem to change when! notice

IIIIRIILESS STEREII SPEAKER SYSTEM

ONYa

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IFS-190

Overview of the system

The IFS-190 is an Infrared cordless speaker system With
built-in amplifiers. By connecting the separately sold Sony
infrared transmitter TMR-IF10K etc to either the line outpul
terminals or headphones terminal of your AV equipment,
this system will be able to receive audio signals in inirered
rays rrom the AV equlpment and will produce hm quality
sound. Without the trouble at connecting the speaker cords.
the speaker units can be moved around with ease in order
to be placed in the Dpllmum location in your room. Each
speaker unit contains a set at tour speakers and two
amplifiers which will give powerful high quality sound
reproduction. This speaker system can be used as a main
speaker system as wetl as a surround speaker sysem.
Since these speaker units use infrared lays. the further
they are placed Irom the intrared emitter the more
hissing noise the units tend to pick up. Also iI the
infrared rays are obscured. the units may pick up some
noise or the sound may be interrupted. However this is a
characteristic at any infrared transmission system and
does I'Ifi mean that the units are detective.

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.

TABLE OF CONTENTS

58AM Ede mg
SECTION 1_ GENERAL ................................................ 3
SECTION 2. ELECTRICAL ADJUSTMENTS 6
SECTION 3. DIAGRAMS

3-1. Semiconductor Lead Layouts ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 8

34 Primed Wiring Boards ....................................... 3

3.3. Schematic Diagram ............................................. 1|

3-4. IC Block Diagrams -'

SECTION 4. EXPLODED VIEW

..................... 15

SECTION 5. ELECTRICAL PARTS LIST

Note on repair

If ceramic filters CF101 and CF102(CF201 and CF202l on the
AX-L board(AX-Fi board) are to be replaced for repair, replace them

simultaneously to keep the same frequency rankt

Two ceramic filters CF101 and CF102(CF201 and CF202) are

supplied as one set.