Read Sony SRS-RF930RK Service Manual online
SERVICE MANUAL
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
Published by Sony Techno Create Corporation
US Model
Canadian Model
WIRELESS STEREO SPEAKER SYSTEM
9-887-014-02
2006B16-1
© 2006.02
© 2006.02
Ver. 1.1 2006.02
SPECIFICATIONS
SRS-RF930RK
General
Carrier frequency 913.5, 914, 914.5 MHz
Channel
Channel
Ch1, Ch2, Ch3
Modulation
FM stereo
Transmitter
Power source
DC 9 V: supplied AC power adaptor
(AC-S901)
(AC-S901)
Audio input
Input cord - stereo mini plug
(1.5 m)/stereo mini jack
(1.5 m)/stereo mini jack
Input impedance 27 k /50 at 1 kHz
Dimensions
Dimensions
Approx. 120
×
107
×
123 mm
(4
3
/
4
×
4
1
/
4
×
4
7
/
8
in.) (w/h/d)
Mass
Approx. 192 g (6.8 oz.)
Speaker system
Speaker system Full range, Bass reflex, magnetically
shielded
Speaker Unit
57 mm (diameter)
Rated output
2 W
Audio input
stereo mini jack
Input impedance 5.9 k at 1 kHz
Dimensions
Dimensions
Approx. 366
×
120
×
86 mm
( 14
1
/
2
×
4
3
/
4
×
3
1
/
2
in.) (w/h/d)
Mass
Approx. 905 g (31.9 oz.) incl.
built-in rechargeable battery
built-in rechargeable battery
Built-in Ni-MH rechargeable battery
Voltage
4.8 V
Capacity
700 mAh
Duration time
Approx. 14 hours*
Charging time
Approx. 16 hours (from fully
discharged to fully charged)
discharged to fully charged)
* at 5 mW + 5 mW output
Supplied accessories
AC adaptor (1)
Operating instructions (1)
Operating instructions (1)
Design and specifications are subject to change without notice.
Photo : SILVER
2
SRS-RF930RK
TABLE OF CONTENTS
1.
GENERAL
...................................................................
3
2.
DISASSEMBLY
2-1.
Disassembly Flow ...........................................................
4
2-2.
Rear Cabinet, Side Panel .................................................
4
2-3.
Ni-MH Battery ................................................................
5
2-4.
RX Board .........................................................................
5
2-5.
Speaker ............................................................................
6
2-6.
AMP Board ......................................................................
6
2-7.
TX Board .........................................................................
7
3.
DIAGRAMS
3-1.
Block Diagram – AMP Assy – .......................................
9
3-2.
Block Diagram – Transmitter Assy – ............................. 10
3-3.
Printed Wiring Boards – AMP Board Section – ............. 11
3-4.
Schematic Diagram – AMP Board Section – ................. 12
3-5.
Printed Wiring Board – RX Board Section – ................. 13
3-6.
Schematic Diagram – RX Board Section – .................... 14
3-7.
Printed Wiring Boards – TX-BASE Board Section – ..... 15
3-8.
Schematic Diagram – TX-BASE Board Section – ......... 16
4.
EXPLODED VIEWS
4-1.
Receiver Section .............................................................. 19
4-2.
Transmitter Section ......................................................... 20
5.
ELECTRICAL PARTS LIST
.................................. 35
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270
°
C
during repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
or unsoldering.
Notes on chip component replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be
damaged by heat.
damaged by heat.
On AC power adaptor
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•
Unleaded solder melts at a temperature about 40
°
C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°
C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•
Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•
Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder. Operating instructiondd
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder. Operating instructiondd
Use only the supplied AC power adaptor. Do not use any
other AC power adaptor to avoid damaging the
transmitter.
other AC power adaptor to avoid damaging the
transmitter.
Polarity of the plug
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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
Ver. 1.1
3
SRS-RF930RK
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
B
DC IN 9V
OFF
ON
1 2 3
CHANNEL
AUDIO IN
NOISE FILTER
A
to headphones or
LINE OUT jack
(stereo mini jack)
LINE OUT jack
(stereo mini jack)
Transmitter
Speaker System
Audio cord
(AUDIO IN A)
(AUDIO IN A)
TUNE dial
VOLUME control
POWER switch
POWER indicator
AUDIO IN
AUDIO IN A
4
SRS-RF930RK
Note:
Follow the disassembly procedure in the numerical order given.
2-2. REAR CABINET, SIDE PANEL
SECTION 2
DISASSEMBLY
2-1. DISASSEMBLY FLOW
Note:
Disassemble the unit in the order as shown below.
SET(SRS-RF930RK)
2-2. REAR CABINET, SIDE PANEL
(Page 4)
2-3. NI-MH BATTERY
(Page 5)
2-6. AMP BOARD
(Page 6)
2-5. SPEAKER
(Page 6)
2-4. RX BOARD
(Page 5)
2-7. TX BOARD
(Page 7)
5
side panel assembly
4
rear cabinet assembly
6
side panel
assembly
1
f
our screws
(+BV tapping B3)
2
four screws
(+BV tapping B3)
3