Sony SRSRF-80-R, SRSRF-80-RK, TMRRF-80 Service manual

SRS-RF80R/RF80RK/

TMR-RF80

SERVICE MANUAL

Ver 1.0 2002. 02

SRS-RF80R

• SRS-RF80RK is composed of following models.

COMPONENT MODEL NAME

SRS-RF80RK Wireless Active Speaker SRS-RF80R RF Transmitter TMR-RF80

• SRS-RF80R is sold as single model too.

SPECIFICATIONS

AEP Model

UK Model

TMR-RF80

General

Carrier frequency

Channel Ch1, Ch2, Ch3 Modulation FM stereo

Transmitter

Power source DC 9 V: supplied AC power adaptor

Audio input phono jacks/stereo mini jack Input impedance

Dimensions Approx. 136 × 136 × 100 mm

Mass Approx. 146 g (5.2 oz.)

Speaker system SRS-RF80RK, SRS-RF80R

Speaker system 2 way magnetically shielded Enclosure type Bass reflex Speaker units tweeter: 30 mm × 2

Power source DC 9 V: supplied AC adaptor

Rated output 4 W (while using the supplied AC Dimensions Approx. 234 × 300 × 126 mm

Mass Approx. 905 g (31.9 oz.) incl.

863.5 – 864.5 MHz

(UK model: AC-S901) (European model: AC-S9010)

33 kΩ/51 Ω switchable

(6 × 6 × 4

woofer: 57 mm × 1

(UK model: AC-S911) (European model: AC-S906)

adaptor)

( 9

built-in rechargeable battery

/3 in.) (w/h/d)

/4 × 11 7/8 × 5 in.) (w/h/d)

Built-in Ni-Cd rechargeable battery

Voltage 7.2 V Capacity 700 mAh Duration time Approx. 4 hours

(with the 10 mW reflector light OFF)

Charging time Approx. 28 hours (from fully

discharged to fully charged)

Supplied accessory

The transmitter (SRS-RF80RK only) AC adaptor (2 for SRS-RF80RK) (1 for SRS-RF80R) Connecting cord phono plug-stereo miniplug (1m) (1) Operating instructions (1)

Design and specifications are subject to change without notice.

9-873-531-01

WIRELESS STEREO SPEAKER SYSTEM

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

SRS-RF80R/RF80RK/TMR-RF80

1. GENERAL ·········································································· 4

2. DISASSEMBLY

2-1. Grille bracket ································································· 5 2-2. Front cabinet section, Rear cabinet section ··················· 6 2-3. Nickel cadomium battery, Speaker (057F022) ·············· 6 2-4. Cabinet (Top section), JACK Board, RX board ············ 7 2-5. CHARGE board, SW board ·········································· 7 2-6. AMP board, MEGABASS board,

REFLECTOR board ······················································ 8

2-7. Drive (030F034) ···························································· 8

3. ELECTRICAL ADJUSTMENTS ································· 9

4. DIAGRAMS······································································ 12

4-1. Block Diagrams

– SRS-RF80R – ··························································· 13 – TMR-RF80 – ···························································· 14

4-2. Printed Wiring Boards (SRS-RF80R)

– RX Bord Section – ···················································15

4-3. Schematic Diagram (SRS-RF80R)

– RX Bord Section – ···················································16

4-4. Printed Wiring Boards (SRS-RF80R)

– AMP Bord Section – ················································ 17

4-5. Schematic Diagram (SRS-RF80R)

– AMP Bord Section – ················································ 18 4-6. Printed Wiring Board (TMR-RF80) ···························· 19 4-7. Schematic Diagram (TMR-RF80) ······························· 20

TABLE OF CONTENTS

5. EXPLODED VIEWS

5-1. Front Cabinet Section (SRS-RF80R) ··························21 5-2. Rear Cabinet Section (SRS-RF80R) ··························· 22 5-3. TMR-RF80 ·································································· 23

6. ELECTRICAL PARTS LIST······································· 24

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

Leading about of wiring

( Front side )

SRS-RF80R/RF80RK/TMR-RF80

SERVICING NOTE

( Rear side )

cushion

tape

cushion

Note : In the place of a mark, as shown in figure, the wires are taken about.

SRS-RF80R/RF80RK/TMR-RF80

SRS-RF80R

SECTION 1

GENERAL

This section is extracted from instruction manual.

Connect the speaker system to a power source.

Tweeter (right)

The CHARGE indicator on the speaker

Tweeter (left)

AC power adaptor (supplied UK model: AC-S911/ European model: AC-S906)

system will light up to indicate that the battery is being charged.

CHARGE indicator

To an AC outlet

OFF y ON

TUNING button

POWER switch

POWER indicator

First turn on the audio/video equipment

The switch of the reflector light

VOLUME control

and start playing. The power indicator of the transmitter will light up.

Turn on the speaker system. The power indicator of the speaker system will light in red.

Select the radio frequency with the CHANNEL selector.

123

CHANNEL

Turn up the volume to a moderate level with the VOL control. Press the TUNING button briefly for automatic tuning of the speaker system. If you do not receive a clear audio signal, press it again.

High

Low

TMR-RF80

A To connect to a LINE OUT or REC OUT

Transmitter

DC IN 9V

to AUDIO IN B jack

Left channel

(white)

OFF ON

FILTERNOISE

RBAL

AUDIO IN

Connecting cord (supplied)

Right channel (red)

to LINE OUT or REC OUT jacks

123

CHANNEL

Stereo system, VCR, etc.

B To connect to LINE OUT or headphones

jacks

Transmitter

OFF ON

FILTERNOISE

Right channel (red)

Connecting cord (supplied)

Unimatch plug adaptor (not supplied)

to headphones jack (stereo phone jack)

RBAL

AUDIO IN

to AUDIO IN A jacks

DC IN 9V

123

CHANNEL

Left channel (white)

to headphones or LINE OUT jack (stereomini jack)

MD, WALKMAN*, VCR, etc.

DISASSEMBLY

jack

holder

grille bracket

(Cautions)

(Cautions) Please also exchange grille (Dia. 57) together at a Grille bracket. (A grille (Dia. 57) is unreproducible.)

grille (Dia. 57)

(Cautions)

three screws

(+P 3

10)

The cautions at the time of attachment : When you attach a grille (Dia. 57), please unite a position by cut of a grille (Dia. 57).

Note : Disassemble the unit in the order as shown below.

SET (SRS-RF80R)

SRS-RF80R/RF80RK/TMR-RF80

SECTION 2

GRILLE BRACKET

(Page 5)

NICKEL CADMIUM BATTERY,

SPEAKER

(Page 6)

FRONT CABINET SECTION,

REAR CABINET SECTION

CABINET(TOP SECTION), JACK BOARD, RX BOARD

CHARGE BOARD,

SW BOARD,

Note : This set can be disassembled in the order shown below.

2-1. Grille Bracket

(Page 6)

(Page 7)

AMP BOARD,

MEGABASS BOARD,

REFRECTOR BOARD

(Page 8)

DRIVE(030F034)

(Page 8)

SRS-RF80R/RF80RK/TMR-RF80

2-2. Front Cabinet Section, Rear Cabinet Section

front cabinet section

stand

connector

(CN203)

rear cabinet section

eight screws

(+BVTP 3

reflector

12)

two screws

(+P 3

10)

2-3. Nickel Cadmium Battery, Speaker (057F022)

retainer board

nickel. cadmium battery

connector

(CN802)

jack holder

(+BVTP 3

screws

(+BVTP 3

wo screws

speaker (057F022)

three screws

(+P 3

10)

two claws

front cabinet

2-4. Cabinet (Top Section), JACK board, RX board

)

two screws

(+BVTP 3

power button

cabinet

(top section)

connector (CN801)

10)

connector (CN302)

connector

(CN301)

SRS-RF80R/RF80RK/TMR-RF80

screw (DIA. 12)

JACK board

connector

(CN804)

connector

(CN101)

connector (CN304)

2-5. CHARGE board, SW board

(+P 2.6

CHARGE board

screw

rear cabinet

connector (CN303

antenna

RX boar

two screws

(+P 2.6

top cover section

SW board

SRS-RF80R/RF80RK/TMR-RF80

)

2-6. AMP board, MEGABASS board, REFLECTOR board

Remove eight solderings.

MEGABASS board

connector (CN304)

connector (CN202)

power button

screw

(+P 2.6

AMP board

screw

(+P 2.6

REFLECTOR board

connector (CNP201

2-7. Drive (030F034)

screw

(+BVTP 3

10)

screw

(+P 2.6

screw

(+BVTP 3

screw

(+P 2.6

10)

Remove two solderings.

herness

drive (030F034)

grille (DIA. 30)

connector (CNP202)

herness

MDD holder (R)

drive (030F034)

MDD holder (L)

Remove two solderings.

grille (DIA. 30)

When you remove a Cautions : (R) side, please start with

, when you remove the (L) side, please start with 8.

digtal voltmeter

(AC range)

TMR-RF80

SRS-RF80R/RF80RK/TMR-RF80

SECTION 3

ELECTRICAL ADJUSTMENTS

Setting :

AF signal generator

set

TMR-RF80

L-CH (J402)

Telescopic antenna

Frequency counter

8 cm

set

TMR-RF80

Transmission Frequency Check and Adjustment

1. Set the NOISE FILTER switch to OFF.

2. Input a signal of 1 kHz 40 mVrms to only the L-CH (J402).

3. Connect a telescopic antenna to the frequency counter input and extend the antenna to a length of approximately 8 cm.

4. Place TX board close to the frequency counter, then measure the frequencies of CH1, CH2 and CH3 and make sure the values are as follows:

CH1 : 863.5 MHz ± 40 kHz CH2 : 864.0 MHz ± 40 kHz CH3 : 864.5 MHz ± 40 kHz

Modulation Check and Adjustment

1. Set the channel to CH2.

2. An electric wave is output for 4 or 5 minutes when OFF to ON a power supply (Power indicator will ON).

3. Measure the center terminal of RV403 using an digital volt-meter (AC range) and make sure the value is 2 to 2.5mVrms. If the measured value is other than the specified value, adjust to 2 to 2.5mVrms by turning the RV403 on the TX board.

Connection points and Adjustment Location :

TX BOARD

←

CH2 ←CH1

CH3

S402

(Component side)

(L-CH) (R-CH)

J402

RV403

VCO UNIT

When the frequency is not satisfied the specified value, set the CHANNEL switch (S402) to CH2, then adjust the value of the frequency counter to 914.0 MHz by trimmer capacitor in the VCO unit.

Standard value :913.9MHz to 914.1MHz

When completed with replacement, recheck the frequencies of CH1, CH2 and CH3.

RV403: Modulation adjustment

TX BOARD

(Conductor side)

IC402

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