SRF-S54, SRF-S56 (serv.man2) - Sony Audio Service Manual (repair manual)

srf-s54, srf-s56 (serv.man2) service manual
Model
SRF-S54 SRF-S56 (serv.man2)
Pages
14
Size
446.42 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
srf-s54-srf-s56-sm2.pdf
Date

Read Sony SRF-S54 / SRF-S56 (serv.man2) Service Manual online

SERVICE MANUAL
Frequency range
87.5 - 108 MHz
Output
i (stereo earphones) jack (ø 3.5 mm stereo minijack) load impedance
16 1
Power output
4.5 mW + 4.5 mW (at 10% hamonic distortion)
Power requirements
1.5 V DC, one R03 (size AAA) battery
Dimensions
Approx. 33.7 
× 75.3 × 16 mm (w/h/d) (Approx. 1 
3
/
8
 × 3 × 
5
/
8
  inches)
not incl. projecting parts and controls
Approx. 34.9 
× 76.3 × 20 mm (w/h/d) (Approx. 1 
7
/
16
 × 3 
1
/
8
 
× 
13
/
16
inches) incl. projecting parts and controls
Mass
Approx. 46.6 g (1.7 oz
 
) incl. a battery and stereo earphones
Supplied accessory
Stereo earphones (1)
Design and specifications are subject to change without notice.
FM STEREO RADIO
E Model
Chinese Model
SPECIFICATIONS
SRF-S54/S56
Photo: SRF-S56
Ver. 1.1  2006.10
9-874-198-02
2006J05-1
© 2006.10
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
2
SRF-S54/S56
TABLE  OF  CONTENTS
1.
GENERAL
...................................................................
3
2.
DISASSEMBLY
2-1. Disassembly Flow ...........................................................
4
2-2. Cabinet (Rear) Block, Knob (ST) ...................................
4
2-3. MAIN Board ...................................................................
5
3.
ASSEMBLY
3-1. How to Install Gear (Tuning Capacitor) .........................
6
4.
ELECTRICAL  ADJUSTMENTS
.........................
7
5.
DIAGRAMS
5-1. Block Diagram ................................................................
8
5-2. Note for Printed Wiring Board and
Schematic Diagram .........................................................
9
5-3. Printed Wiring Board ...................................................... 10
5-4. Schematic Diagram ......................................................... 11
6.
EXPLODED  VIEW
................................................... 12
7.
ELECTRICAL  PARTS  LIST
............................... 12
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
3
SRF-S54/S56
SECTION  1
GENERAL
This section is extracted from
instruction manual.
Installing the Battery
(See Fig. A)
Open the battery compartment lid at the rear of the radio.
2
Insert one R03 (size AAA) battery (not supplied) with the 3
and # marks aligned correctly.
3
Close the battery compartment lid.
Battery life (approx. hours)
(JEITA*)
Using Sony  alkaline LR03  (size  AAA) battery
44
Using Sony  R03  (size  AAA) battery
19
* Measured by JEITA (Japan Electronics and Information Technology
Industries Association) standards. The actual battery life may vary
depending on  the  circumstance  of the  unit.
When to replace the battery
Replace the battery when the sound becomes weak or distorted. Remove
the old battery and insert a new one.
Notes on battery
• Do not charge  the dry battery.
• Do not carry the dry battery with coins or other metallic objects. It can
generate  heat if the positive and negative terminals of the battery are
accidentally contacted by a metallic object.
• When you are  not going to use  the unit for a long time, remove the
battery to avoid damage from battery leakage and corrosion.
If the battery compaertment lid comes off
(See Fig. 
B)
The battery compartment lid is designed to come off when opened with
excessive force. To put it back on, see the illustration.
1
Insert the right hook of the lid into the right hole in the unit.
2
Hang the left hook on the left part of the compartment where the lid
fits.
3
Slide the left hook toward the left hole in the unit.
Operating the Radio
1
Connect the supplied stereo earphones to i (stereo
earphones) jack.
2
Set OFF/ON/MEGABASS to ON to turn on the radio.
3
Turn TUNE to tune in to a station.
4
Adjust VOLUME.
OFF/ON/
MEGABASS
VOLUME
TUNE
MONO/ST
i
 (stereo earphones) jack
Prise i (écouteurs stéréo)
Stereo-Ohrhörerbuchse 
i
Toma  i (auriculares estéreo)
i
 (stereo oortelefoon) aansluiting
Dial scale
Voyant de
syntonisation
Frequenzanzeige
Dial
Afstemschaal
A
Rear
Arrière
Rückseite
Posterior
Achter
Clip*
Pince*
Klammer*
Gancho*
Insert the # side of the battery first.
Introduisez d’abord le pôle négatif 
# de la pile.
Legen Sie die Batterie mit dem Minuspol 
# zuerst ein.
Inserte el polo negativo de la pila primero.
Breng de 
# kant van de batterij eerst in.
C
To  turn off the radio
Set OFF/ON/MEGABASS to OFF.
To  Improve the Reception (See Fig. C)
Extend the stereo  earphones  cord which functions as  an FM antenna.
When listening to the stereo  reception, normally set  MONO/ST to ST
(stereo)*. If the stereo reception is poor, set  MONO/ST to MONO.
Although the sound will not be heard in stereo, noise will be reduced.
* You will hear the sound in stereo only when the program of the station
that you are  tuned into is in stereo.
To  Enjoy Powerful Bass Sound
Set OFF/ON/MEGABASS to MEGABASS to emphasize  bass  sound.
R03 (size AAA) x 1
R03 (format AAA) x 1
R03 (Größe AAA) x 1
R03 (tamaño AAA) x 1
R03 (AAA) x 1
B
*Press the top of the clip to open.
*Appuyez sur le haut de la pince pour ouvrir.
*Drücken Sie zum Öffnen oben auf die Klammer.
*Presione la parte superior del gancho para abrirlo.
*Druk op de bovenkant van de clip om deze te openen.
SRF-S54/S56
4
• This set can be disassembled in the order shown below.
2-1.
DISASSEMBLY  FLOW
SECTION  2
DISASSEMBLY
Note:
 Follow the disassembly procedure in the numerical order given.
2-2.
CABINET (REAR)  BLOCK,  KNOB (ST)
2-2. CABINET (REAR) BLOCK, 
KNOB (ST)
(Page 4)
2-3. MAIN BOARD
(Page 5)
SET
3
two claws
6
knob (ST)
knob (ST)
slide switch (S2)
Note: When installing knob (ST),
connect with slide switch
(STEREO/MONO) (S2).
4
claw
2
claw
5
cabinet (rear) block
1
two screws
(B1.7 
×
 8)
Page of 14
Display

Download Sony SRF-S54 / SRF-S56 (serv.man2) Service Manual (Repair Manual)

Here you can read online and download Sony SRF-S54 / SRF-S56 (serv.man2) Service Manual in PDF. SRF-S54 / SRF-S56 (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony SRF-S54 / SRF-S56 (serv.man2) Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.