DHC-MD313, HCD-MD313 (serv.man2) - Sony Audio Service Manual (repair manual)

dhc-md313, hcd-md313 (serv.man2) service manual
Model
DHC-MD313 HCD-MD313 (serv.man2)
Pages
75
Size
5.83 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dhc-md313-hcd-md313-sm2.pdf
Date

Read Sony DHC-MD313 / HCD-MD313 (serv.man2) Service Manual online

surface on the Optical
Pick-up Block with a 7
mm aperture.
Frequency response
2 Hz – 20 kHz
MD deck section
System
MiniDisc digital audio
system
Laser
Semiconductor laser
(
λ
 = 780 nm)
Emission duration:
continuous
Laser output
Max. 44.6 
µ
W*
*This output is the
value measured at a
distanceof 200 mm
from the objective lens
surface on the Optical
Pick-up Block with a 7
mm aperture.
Recording time
74 minutes max. (using
MDW-74)
Sampling frequency
44.1 kHz
Frequency response
5 Hz to 20 kHz
MINI Hi-Fi COMPONENT SYSTEM
Canadian Model
AEP Model
UK Model
E Model
SPECIFICATIONS
SERVICE MANUAL
HCD-MD313
HCD-MD313 is the amplifier, CD, MD and
tuner section in DHC-MD313.
Model Name Using Similar Mechanism
HCD-T1
CD
CD Mechanism Type
CDM13C-5BD19
Section
Base Unit Name
BU-5BD19
Optical Pick-up Name
KSS-213B/K-N
Model Name Using Similar Mechanism
MDS-MX1
MD
MD Mechanism Type
MDM-3D
Section
Optical Pick-up Name
KMS-260A/J1N
US and foreign patents licensed from Dolby
Laboratories Licensing Corporation.
– Continued on next page –
Amplifier section
Canadian model:
Continuous RMS power output
20+20 watts
(6 ohms at 1 kHz, 1%
THD, 120 V) (Rated)
25+25 watts
(6 ohms at 1 kHz, 10%
THD, 120 V) (Refer-
ence)
European model:
DIN power output
(Rated)
25 + 25 watts (6 ohms
at 1 kHz, DIN, 230 V)
Continuous RMS power output (Reference)
30+30 watts
(6 ohms at 1 kHz, 10%
THD, 230 V)
Music power output
(Reference)
50+50 watts
Other models:
DIN power output
(Rated)
20+20 watts
(6 ohms at 1 kHz, DIN,
240 V)
18+18 watts
(6 ohms at 1 kHz, DIN,
220 V)
Continuous RMS power output (Reference)
25+25 watts (6 ohms at
1 kHz, 10% THD,
240 V)
23+23 watts
(6 ohms at 1 kHz, 10%
THD, 220 V)
Peak music power output 400 watts
Inputs
TAPE IN (phono
jacks):
voltage 250 mV/125
mV, impedance 47
kilohms
Outputs
TAPE OUT (phono
jacks):
voltage 250 mV im-
pedance 1 kilohms
PHONES (Stereo minijack):
accepts headphones of
8 ohms or more.
SPEAKER:
accepts impedance of
6 to 16 ohms.
CD player section
System
Compact disc and digi-
tal audio system
Laser
Semiconductor laser
(
λ
 = 780 nm)
Emission duration:
continuous
Laser output
Max. 44.6 
µ
W*
*This output is the
value measured at a
distance of 200 mm
from the objective lens
Ver. 1.1  2008.08
9-920-956-13
2008H05-1
© 2008.08
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
– 2 –
TABLE  OF  CONTENTS
SELF-DIAGNOSIS DISPLAY
......................................... 2
1.
SERVICING  NOTES
............................................... 3
2.
GENERAL
.................................................................... 5
3.
DISASSEMBLY
.......................................................... 8
4.
TEST  MODE
.............................................................. 15
5.
ELECTRICAL  ADJUSTMENTS
MD Section ...................................................................... 19
CD Section ....................................................................... 24
6.
DIAGRAMS
6-1. Block Diagrams
CD Section ....................................................................... 27
MD Section ...................................................................... 29
Main Section .................................................................... 31
6-2. Printed Wiring Board — CD Section — ......................... 33
6-3. Schematic Diagram — CD Section — ............................ 35
6-4. Printed Wiring Boards — MD Section — ....................... 39
6-5. Schematic Diagram — MD Section — ........................... 41
6-6. Schematic Diagram — Main Section — ......................... 46
6-7. Printed Wiring Boards — Main Section — ..................... 51
6-8. Printed Wiring Board — Audio Section — ..................... 53
6-9. Schematic Diagram — Audio Section — ........................ 55
6-10. Printed Wiring Boards — Panel/Power Section — ......... 58
6-11. Schematic Diagram — Panel/Power Section — ............. 61
6-12. IC Pin Function Description ............................................ 74
7.
EXPLODED  VIEWS
................................................ 82
8.
ELECTRICAL  PARTS  LIST
................................ 88
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz (50 kHz step)
Aerial
FM lead aerial
Aerial terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
North American model:
AM:
530 – 1,710 kHz
(with the interval set at 10 kHz)
531 – 1,710 kHz
(with the interval set at 9 kHz)
European model:
MW:
522 – 1,611 kHz
(with the interval set at 9 kHz)
LW:
144 – 288 kHz
(with the interval set at 3 kHz)
Other models:
MW:
531–1,602 kHz
(with the interval set at 9 kHz)
530 – 1,710 kHz
(with the interval set at 10 kHz)
SW:
5.95 – 17.90 MHz
(with the interval set at 5 kHz)
General
Power requirements
North American model:
120 V AC, 60 Hz
European model:
220 – 230 V AC, 50/60 Hz
Other models:
110 – 120 V or 220 – 240 V AC, 50/60 Hz
Power consumption:
North American model:
70 watts
Other models:
80 watts
Dimensions
Amplifier/Tuner/MD/CD section:
Approx. 215 
×
 150 
×
 320 mm (8
1
/
4
 
× 
× 
12
5
/
8
 in)
(w/h/d) incl. projecting parts and controls
Mass
Amplifier/Tuner/MD/CD section:
Approx. 5.5 kg (12 lb 8 oz.)
Supplied accessories:
Remote RM-MD313 (1)
AA (R6) batteries (2)
AM loop aerial (1)
FM lead aerial (1)
Design and specifications are subject to change without notice.
SELF-DIAGNOSIS
DISPLAY
– 3 –
SECTION  1
SERVICING  NOTES
MODEL  IDENTIFICATION
— BACK  PANEL —
SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  
!
  OR  DOTTED
LINE  WITH  MARK  
!
  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  PUB-
LISHED  BY  SONY.
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 flexible board is easily damaged and should be handled with
care.
NOTES  ON  LASER  DIODE  EMISSION  CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
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.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
Laser component in this product is capable of emitting radiation
exceding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
This caution la-
bel is located in-
side the unit.
PART No.
MODEL
PARTS No.
AEP, UK, German,
AED models
4-993-849-1
π
Hong Kong, Malaysia,
Singapore models
4-993-849-2
π
Canadian model
4-993-849-3
π
Note:
Be sure to connect all wires (including FFC) in the MD
section before applying power or ICs may be damaged.
• Abbreviation
AED: North European
ATTENTION  AU  COMPOSANT  AYANT  RAPPORT
À  LA  SÉCURITÉ!
LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  
!
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.
– 4 –
DISC  TABLE  GETTING  OUT  PROCEDURE  ON
THE  POWER  SUPPLY  IS  OFF
1. Insert the tweezers to a hole on bottom of the chassis as shown
a figure, then tern fully it toward direction 2.
2. Pull out the disc table.
disc table
cam
1
 tweezers
2
3
FLUORESCENT  INDICATOR  TUBE/BUTTONS/JOG/
LEDs  CHECK  MODE
1. Press two buttons PLAY MODE and
p (MD) simultaneously
for standby status.
2. Fluorescent indicator tube and LEDs are all turned on.
Press FUNCTION button, the fluorescent indicator tube dis-
plays pattern change to cycle.
Turning the VOLUME knob, and the each LED turned on to
order.
3. Press
p (CD) button, and the Key check mode.
4. The fluorescent indicator tube displays “KEY=0  JOG=0”.
Each time a button is pressed, “KEY”=value increases.
Howerer, once a button is pressed, it is no longer taken into
account.
“JOG=” value increases like 1, 2, 3... if rotating VOLUME
knob in clock width, or it decreases like 0, 9, 8... if rotating in
cunter clock width.
5. To exit from this mode, press order all buttons (15 buttons), the
displays “KEY=OK”, and press any button, or disconnect the
power cord.
SUB  CLOCK  CHECK
1. Connect an oscilloscope to IC601 pin (¡ and ground of the
MAIN board.
2. Press two buttons PLAY MODE and
§ (MD)
Simultaneously, and the fluorescent indicator tube displays
“32.768 kHz (91)”.
3. To check the signal on oscilloscope becomes 32 kHz square
wave.
4. Press POWER button to exit.
TA  CHECK
1. Press POWER button and system power on.
2. Press two buttons PLAY MODE and
p (CD)
simultaneously, the fluorescent indicator tube displays “TA
Test”.
3. Rotation VOLUME knob in clock width a little, the fluores-
cent indicator tube displays “Volume MAX”.
Rotation VOLUME knob in cunter clock widh a little, the fluo-
rescent indicator tube displays “Volume MIN”.
4. Press CD-MD SYNC button, the fluorescent indicator tube
displays “BASS/TRE MAX”. Press REPEAT button, the fluo-
rescent indicator tube displays “BASS/TRE MIN”. Press
p (MD) button, the fluorescent indicator tube displays “ALL
FLAT”. Press
p (CD) button, the fluorescent indicator tube
displays “SURROUND = ON”.
5. Press POWER button to exit, and system power off.
Page of 75
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Download Sony DHC-MD313 / HCD-MD313 (serv.man2) Service Manual (Repair Manual)

Here you can read online and download Sony DHC-MD313 / HCD-MD313 (serv.man2) Service Manual in PDF. DHC-MD313 / HCD-MD313 (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony DHC-MD313 / HCD-MD313 (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.