SRS-RF90R, SRS-RF90RK, TMR-RF90 — Sony Audio Service Manual (repair manual)

Model
SRS-RF90R SRS-RF90RK TMR-RF90
Pages
28
Size
5.31 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
srs-rf90r-srs-rf90rk-tmr-rf90.pdf
Date

View Sony SRS-RF90R / SRS-RF90RK / TMR-RF90 Service Manual online

Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-873-530-01
2002B1600-1
© 2002.02
SRS-RF90R/RF90RK/
TMR-RF90
US Model
Canadian Model
SERVICE MANUAL
WIRELESS STEREO SPEAKER SYSTEM
SPECIFICATIONS
Ver 1.0  2002. 02
General
Carrier frequency 913.5 – 914.5 MHz
Channel
Ch1, Ch2, Ch3
Modulation
FM stereo
Transmitter (SRS-RF90RK only)
Power source
DC 9 V: supplied AC power adaptor
(AC-S901)
Audio input
phono jacks/stereo mini jack
Input impedance 33 k
Ω/51 Ω switchable
Dimensions
Approx. 136 
× 136 × 100 mm
(6 
× 6 × 4 
1
/
3
 in.) (w/h/d)
Mass
Approx. 146 g (5.2 oz.)
Speaker system  SRS-RF90RK, SRS-RF90R
Speaker system 2 way magnetically shielded
Enclosure type Bass reflex
Speaker units
tweeter: 30 mm 
× 2
woofer: 57 mm 
× 1
Power source
DC 9 V: supplied AC adaptor (AC-S906T)
Rated output
Built in amplifiers total 4W (while
using the supplied AC adaptor)
* power output:
Tweeter: 0.25W + 0.25W < 10%
T.H.D., 5 kHz 24 ohms
Woofer: 3.5W < 10% T.H.D., 1kHz
6 ohms
Dimensions
Approx. 234 
× 300 × 126 mm
( 9 
1
/
4
 
×  11 
7
/
8
 
× 5 in.) (w/h/d)
Mass
Approx. 905 g (31.9 oz.) incl.
built-in rechargeable battery
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-RF90RK only)
AC adaptor (2 for SRS-RF90RK) (1 for SRS-RF90R)
Connecting cord phono plug-stereo miniplug (1m) (1)
Operating instructions (1)
Design and specifications are subject to change without
notice.
SRS-RF90RK
Wireless Active Speaker
SRS-RF90R
RF Transmitter
TMR-RF90
• SRS-RF90RK is composed of following models.
COMPONENT MODEL NAME
SRS-RF90R
TMR-RF90
• SRS-RF90R is sold as single model too.
2
SRS-RF90R/RF90RK/TMR-RF90
TABLE  OF  CONTENTS
1. GENERAL
·········································································· 4
2. DISASSEMBLY
2-1. Grille bracket ································································· 5
2-2. Front cabinet section, Rear cabinet section ··················· 6
2-3. Nickel cadmium 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-RF90R – ··························································· 13
– TMR-RF90 – ···························································· 14
4-2. Printed Wiring Boards (SRS-RF90R)
– RX Bord Section – ··················································· 15
4-3. Schematic Diagram (SRS-RF90R)
– RX Bord Section – ··················································· 16
4-4. Printed Wiring Boards (SRS-RF90R)
– AMP Bord Section – ················································ 17
4-5. Schematic Diagram (SRS-RF90R)
– AMP Bord Section – ················································ 18
4-6. Printed Wiring Board (TMR-RF90) ···························· 19
4-7. Schematic Diagram (TMR-RF90) ······························· 20
5. EXPLODED VIEWS
5-1. Front Cabinet Section (SRS-RF90R) ·························· 21
5-2. Rear Cabinet Section (SRS-RF90R) ··························· 22
5-3. TMR-RF90 ·································································· 23
6. ELECTRICAL PARTS LIST
······································· 24
3
SRS-RF90R/RF90RK/TMR-RF90
SERVICING  NOTE
Note : In the place of a          mark, as shown in figure, the wires are taken about.
( Rear side )
tape
cushion
cushion
( Front side )
Leading about of wiring
4
SRS-RF90R/RF90RK/TMR-RF90
SECTION 1
GENERAL
This section is extracted from
instruction manual.
1
First turn on the audio/video equipment
and start playing.
The power indicator of the transmitter
will light up.
2
Turn on the speaker system.
The power indicator of the speaker
system will light in red.
3
Select the radio frequency with the
CHANNEL selector.
1 2 3
CHANNEL
1
Connect the speaker system to a power
source.
AC power adaptor (supplied)
Tweeter
(left)
Tweeter
(right)
To an AC
outlet
OFF y ON
The switch of the
reflector light
POWER switch
POWER indicator
High
Low
TUNING
button
VOLUME control
2
The CHARGE indicator on the speaker
system will light up to indicate that the
battery is being charged.
CHARGE indicator
A
To connect to a LINE OUT or REC OUT
B
To connect to headphones jack
DC IN 9V
OFF
ON
FILTER
NOISE
1 2 3
CHANNEL
R
B
A
L
AUDIO IN
Transmitter
to AUDIO IN
B jack
Connecting cord
(supplied)
Right channel
(red)
Left channel
(white)
to LINE OUT or REC
OUT jacks
Stereo system, VCR, etc.
DC IN 9V
OFF
ON
FILTER
NOISE
1 2 3
CHANNEL
R
B
A
L
AUDIO IN
Transmitter
Left channel
(white)
Right channel
(red)
Connecting cord
(supplied)
to AUDIO IN
A jacks
Unimatch plug
adaptor (not
supplied)
Discman, MD,
WALKMAN*, VCR,
etc.
to headphones
or LINE OUT jack
(stereo mini jack)
to headphones
jack (stereo
phone jack)
SRS-RF90R
TMR-RF90
5
SRS-RF90R/RF90RK/TMR-RF90
SECTION  2
DISASSEMBLY
Note :
Disassemble the unit in the order as shown below.
2-1. Grille Bracket
Note :
This set can be disassembled in the order shown below.
FRONT CABINET SECTION,
REAR CABINET SECTION
(Page 6)
GRILLE BRACKET
(Page 5)
SET(SRS-RF90R)
NICKEL CADMIUM BATTERY,
SPEAKER(057F022)
(Page 6)
CABINET(TOP SECTION),
JACK BOARD, RX BOARD
(Page 7)
AMP BOARD,
MEGABASS BOARD,
REFRECTOR BOARD
(Page 8)
CHARGE BOARD,
SW BOARD,
(Page 7)
DRIVE(030F034)
(Page 8)
2
jack holder
4
grille bracket
    (Cautions)
(Cautions)
Please also exchange grille (Dia. 57) together at a Grille bracket.
(A grille (Dia. 57) is unreproducible.)
    
3
grille (Dia. 57)
    (Cautions)
1
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).

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Here you can view online or download Sony SRS-RF90R / SRS-RF90RK / TMR-RF90 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony SRS-RF90R / SRS-RF90RK / TMR-RF90 Audio. Information contained in Sony SRS-RF90R / SRS-RF90RK / TMR-RF90 service manual (repair manual) typically includes:

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  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).