HCD-FX350I - Sony Audio Service Manual (repair manual)

hcd-fx350i service manual
Model
HCD-FX350I
Pages
40
Size
1.73 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-fx350i.pdf
Date

Read Sony HCD-FX350I Service Manual online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
HCD-FX350i
SPECIFICATIONS
COMPACT DISC RECEIVER
9-889-863-03
2013B33-1
© 
2013.02
AEP Model
UK Model
Australian Model
Ver. 1.2  2013.02
•  HCD-FX350i is the amplifi er, CD player, tuner 
and iPod section in CMT-FX350i.
Model Name Using Similar Mechanism
HCD-FX250/FX300i
Base Unit Name
BU-D1BD73
Optical Pick-up Block Name
DA11MMVGP
• 
iPod is a trademark of Apple Inc., registered in the U.S. and other countries.
• 
“Made for iPod” means that an electronic accessory has been designed to connect specifi cally to iPod and has 
been certifi ed by the developer to meet Apple performance standards.
• 
Apple is not responsible for the operation of this device or its compliance with safety and regulatory standards.
• 
MPEG Layer-3 audio coding technology and patents licensed from Fraunhofer IIS and Thomson.
• 
All other trademarks and registered trademarks are of their respective holders. In this manual, TM and ® marks 
are not specifi ed.
Amplifier section
AEP and UK models:
DIN power output (rated): 4 watts + 4 watts (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 5 watts + 5 watts (4 ohms at 
1 kHz, 10% THD)
Music power output (reference): 9 watts + 9 watts
Australian model:
DIN power output (rated): 4 watts + 4 watts (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 5 watts + 5 watts (4 ohms at 
1 kHz, 10% THD)
Input
AUDIO IN (stereo mini jack): Sensitivity 550 mV, impedance 50 kilohms
Outputs
PHONES (stereo mini jack): Accepts headphones with an impedance of 
8 ohms or more
SPEAKERS: Accepts impedance of 4 ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6μW
* This output is the value measurement at a distance of 200mm from the 
objective lens surface on the Optical Pick-up Block with 7mm aperture.
Frequency response: 20 Hz   20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tuner section
FM stereo, DAB/FM superheterodyne tuner
Antenna: DAB/FM lead antenna
DAB tuner section (UK and Australian models):
Frequency range*
Band-III: 174.928 (5A) MHz   239.200 (13F) MHz
* For details, see “DAB frequency table” below.
DAB frequency table (Band-III) (UK and Australian models)
Frequency
Label
Frequency
Label
174.928 MHz
5A
209.936 MHz
10A
176.640 MHz
5B
211.648 MHz
10B
178.352 MHz
5C
213.360 MHz
10C
180.064 MHz
5D
215.072 MHz
10D
181.936 MHz
6A
216.928 MHz
11A
183.648 MHz
6B
218.640 MHz
11B
185.360 MHz
6C
220.352 MHz
11C
187.072 MHz
6D
222.064 MHz
11D
188.928 MHz
7A
223.936 MHz
12A
190.640 MHz
7B
225.648 MHz
12B
192.352 MHz
7C
227.360 MHz
12C
194.064 MHz
7D
229.072 MHz
12D
195.936 MHz
8A
230.784 MHz
13A
197.648 MHz
8B
232.496 MHz
13B
199.360 MHz
8C
234.208 MHz
13C
201.072 MHz
8D
235.776 MHz
13D
202.928 MHz
9A
237.488 MHz
13E
204.640 MHz
9B
239.200 MHz
13F
206.352 MHz
9C
208.064 MHz
9D
FM tuner section:
Tuning range: 87.5 MHz   108.0 MHz (50 kHz step)
Intermediate frequency: 2.048 MHz
iPod section (UK and Australian models)
Compatible iPod models:
iPod nano  
5th generation 
(video camera)
iPod touch  
2nd generation/ 
iPod touch  
Late 2009
iPod classic 
120 GB  
160 GB (2009)
iPod nano  
4th generation 
(video)
iPod classic 
160 GB (2007)
iPod touch  
1st generation
iPod nano  
3rd generation  
(video)
iPod classic  
80 GB
iPod nano  
2nd generation  
(aluminum)
iPod  
5th generation  
(video)
iPod nano  
1st generation
iPod  
4th generation 
(color display)
iPod  
4th generation
iPod mini
General
Power requirements:
AEP and UK models: AC 230 V, 50/60 Hz
Australian model: AC 230 V   240 V, 50/60 Hz
Power consumption: 28 watts
Dimensions (W/H/D) (excl. speakers): 
Approx. 158 mm × 240 mm × 251.5 mm
Mass (excl. speakers): Approx. 2.3 kg
Design and specifications are subject to change without notice.
 Standby power consumption: 0.5 W
 Halogenated  flame  retardants are not used in the certain printed 
wiring boards.
DAB/DAB+ tuner section (AEP model):
Frequency range*
Band-III: 174.928 (5A) MHz   239.200 (13F) MHz
* For details, see “DAB/DAB+ frequency table” below.
DAB/DAB+ frequency table (Band-III) (AEP model)
iPod section (AEP model)
Compatible iPod models:
iPod touch  
4th generation
iPod touch  
3rd generation
iPod touch  
2nd generation
iPod touch  
1st generation
iPod nano  
6th generation
iPod nano  
5th generation 
(video camera)
iPod nano  
4th generation 
(video)
iPod nano  
3rd generation  
(video)
iPod nano  
2nd generation 
(aluminum)
iPod nano  
1st generation
iPod  
5th generation  
(video)
iPod classic
HCD-FX350i
2
1. 
SERVICING  NOTES
  .............................................   3
2. DISASSEMBLY
2-1. Disassembly 
Flow 
...........................................................   5
2-2.  Panel (Rear) Block ..........................................................   5
2-3.  Top Panel Block ..............................................................   6
2-4.  Front Panel Block ...........................................................   6
2-5. Knob 
(VOL) 
....................................................................   7
2-6.  Module (DAB Tuner) Block, MAIN Board ....................   7
2-7. Base 
Unit 
.........................................................................   8
2-8.  Optical Pick-up Block (DA11MMVGP) ........................   8
3. 
TEST  MODE 
 ............................................................   9
4. 
ELECTRICAL  CHECK 
 .........................................   10
5 DIAGRAMS
5-1.  Block Diagram - CD, TUNER Section - ........................   12
5-2. Block 
Diagram 
- OUTPUT, PANEL, POWER SUPPLY Section - .........   13
5-3.  Printed Wiring Board - BD73 Board - ............................   16
5-4.  Schematic Diagram - BD73 Board - ...............................   17
5-5.  Schematic Diagram - MAIN Section (1/2) - ...................   18
5-6.  Schematic Diagram - MAIN Section (2/2) - ...................   19
5-7.  Printed Wiring Boards - MAIN Section - .......................   20
5-8.  Printed Wiring Board - IP Board - ..................................   21
5-9.  Schematic Diagram - IP Board - .....................................   21
5-10.  Schematic Diagram - PANEL Board (1/2) - ...................   22
5-11.  Schematic Diagram - PANEL Board (2/2) - ...................   23
5-12.  Printed Wiring Board - PANEL Board - .........................   24
5-13.  Printed Wiring Board - PT Board - .................................   25
5-14.  Schematic Diagram - PT Board - ....................................   25
6. 
EXPLODED  VIEWS
6-1. Overall 
Section 
...............................................................  28
6-2.  Top Panel Section ...........................................................   29
6-3.  Front Panel Section .........................................................   30
6-4. Chassis 
Section 
...............................................................  31
7. 
ELECTRICAL  PARTS  LIST
  ..............................   32
TABLE  OF  CONTENTS
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.
FLEXIBLE  CIRCUIT  BOARD  REPAIRING
•  Keep the temperature of soldering iron around 270 °C during 
repairing.
•  Do not touch the soldering iron on the same conductor of the 
circuit board (within 3 times).
•  Be careful not to apply force on the conductor when soldering 
or unsoldering.
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.
This appliance is classifi ed as 
a CLASS 1 LASER product.
This marking is located on the 
rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.
HCD-FX350i
3
SECTION  1
SERVICING  NOTES
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 
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 °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 viscous (sticky, less prone to fl ow) 
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.
NOTES  ON  HANDLING  THE OPTICAL  PICK-UP  
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated by 
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also 
use the procedure in the printed matter which is included in the 
repair parts.
The fl exible board is easily damaged and should be handled with 
care.
MODEL  IDENTIFICATION
- Back Panel -
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION  
CHECK
During normal operation of the equipment, emission of the laser 
diode is prohibited unless the upper lid is closed while turning on 
the SW880. (push switch type)
The following checking method for the laser diode is operable.
• Method
  Emission of the laser diode is visually checked.
  1.  Open the upper lid.
  2.  Push the SW880 as shown in Fig.1.
Note: Do not push the detection lever strongly, or it may be bent or 
damaged.
  3.  Check the object lens for confi rming normal emission of the 
laser diode. If not emitting, there is a trouble in the automatic 
power control circuit or the optical pick-up.
    In this operation, the object lens will move up and down 2 
times along with inward motion for the focus search.
SW880
Fig. 1.  Method to push the SW880
Model
Part No.
AEP and UK models
4-178-703-0
[]
Australian model
4-178-704-0
[]
NOTES  ON  LASER  DIODE  EMISSION  CHECK
The laser beam on this model is concentrated so as to be focused 
on the disc refl ective surface by the objective lens in the optical 
pickup block. Therefore, when checking the laser diode emission, 
observe from more than 30 cm away from the objective lens.
Part No.
Ver. 1.1
HCD-FX350i
4
CAPACITOR  ELECTRICAL  DISCHARGE  PROCESSING
When checking the board, the electrical discharge is necessary for 
the electric shock prevention.
Connect the resistors referring to the fi gure below.
•   PT board (C905) 
•   MAIN board (C903, C904)
Both ends of respective capacitors.
– PT Board (Conductor Side) –
– MAIN Board (Conductor Side) –
800 
:/2 W
800 
:/2 W
800 
:/2 W
C905
C903
C904
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