DAV-IS50, HCD-IS50 - Sony Audio Service Manual (repair manual)

Laser

(DVD: 

L = 645 - 660 nm) (CD: L = 770 - 800 nm)

Emission duration: continuous

Signal format system

US, Canadian and Latin American models: NTSC
European model: PAL/NTSC
Other models: NTSC/PAL

Semiconductor laser

Outputs

VIDEO: 1 Vp-p 75 ohms
COMPONENT: Y:  1 Vp-p  75ohms

P

B

/C

B

, P

R

/C

R

: 0.7Vp-p 75 ohms

HDMI OUT: Type A (19 pin)

Dimensions (approx.)

215

s 105 s 207 mm (8 

1

/

2

s 4 

1

/

4

s 8 

1

/

4

  inches) 

(w/h/d)

Mass (approx.)

3.0 kg (6 lb 10 oz)

Power output 

Except Latin American model: 
(DIGITAL MEDIA PORT) DC OUT: 5 V, 700 mA 

Design and specifications are subject to change without notice.

System

PLL quartz-locked digital synthesizer

FM tuner section
Tuning range

US and Canadian models:
 87.5 

 108.0 MHz (100kHz step)

Other models: 87.5 

 108.0 MHz (50kHz step)

Antenna (aerial)

FM wire antenna (aerial)

Antenna (aerial) terminals 75 ohms, unbalanced
Intermediate frequency

10.7 MHz

AM tuner section
Tuning range

US, Canadian, Australian and Latin American models: 
531 

 1,710kHz (with the interval set at 9kHz) 

530 

 1,710kHz (with the interval set at 10kHz)

Other models: 
531 

 1,602kHz (with the interval set at 9kHz) 

530 

 1,610kHz (with the interval set at 10kHz)

European and Saudi Arabian models: 
531 

 1,602kHz (with the interval set at 9kHz)

Antenna (aerial)

AM loop antenna (aerial)

Intermediate frequency

450 kHz

2009B08-1

© 

2009.02

•

 

HCD-IS50 is the DVD system, tuner 
and video section in DAV-IS50.

•

 

In this set, repair in the state of having 
connected with SA-WSIS50.

This product incorporates copyright protection technology that is protected by 
U.S. patents and other intellectual property rights. Use of this copyright 
protection technology must be authorized by Macrovision, and is intended for 
home and other limited viewing uses only unless otherwise authorized by 
Macrovision. Reverse engineering or disassembly is prohibited.

This system incorporates with Dolby* Digital and Dolby Pro Logic (II) 
adaptive matrix surround decoder and the DTS** Digital Surround System.

*  Manufactured under license from Dolby Laboratories.

Dolby, Pro Logic, and the double-D symbol are trademarks of Dolby Laboratories.

** Manufactured under license under U.S. Patent #’s:

5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,487,535 & other U.S. and worldwide
patents issued & pending. DTS and DTS Digital Surround are registered trademarks 
and the DTS logos and Symbol are trademarks of DTS, Inc. © 1996-2007 DTS, Inc.
All Rights Reserved.

Model Name Using Similar Mechanism 

HCD-IS10

DVD Mechanism Type 

CDM86A-DVBU101

Optical Pick-up Block Name 

KHM-313CAB

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.

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.

•  Never reuse a disconnected chip component.

•  Notice that the minus side of a tantalum capacitor may be 

damaged by heat.

•  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).

•  Be careful not to apply force on the conductor when soldering 

or unsoldering.

When the self-diagnosis function is activated to
prevent the system from malfunctioning, a 5-
character service number (e.g., C 13 50) with a 
combination of a letter and 4 digits appears on
the TV screen or the front panel display. In this
case, check the following table.

C 13

v The disc is dirty.
Clean the disc with a soft cloth.
v The disc is a format that the 

system cannot play.

C 31

The disc is not inserted correctly.
Restart the system, then re-insert 

the disc correctly.

E XX

(xx is a number)

To prevent a malfunction, the
system has performed the self-
diagnosis function.
Contact your nearest Sony 

dealer or local authorized Sony 
service facility and give the 5-
character service number.

Example: E 61 10

C:13:50

This appliance is
classified as a CLASS 1
LASER product. This
marking is located on 
the bottom exterior.

CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.

NOTES  ...........................................   4

 ............................................................   9

3-1.  Disassembly Flow  ...........................................................  11
3-2. Cover 

(Bottom) 

Assy 

.......................................................  

12

3-3.  Optical Pick-Up Block (KHM-313CAB) ........................  12
3-4. Panel 

(Side-L/R) 

Assy 

.....................................................  

13

3-5.  Panel (Top) Block, Shield Plate (Top) .............................  13
3-6. MAIN 

Board 

....................................................................  

14

3-7. IO 

Board 

..........................................................................  

14

3-8. REG 

Board 

.......................................................................  

15

3-9. DMB-FIT 

Board 

..............................................................  

15

3-10.  Front Panel Block ............................................................  16
3-11.  Mechanism Deck Section (CDM86A-DVBU101) ..........  16
3-12. MD (86A) Assy ................................................................  17
3-13.  Motor (Pulley) Assy (Loading) (M001) ...........................  17
3-14. Holder (BU) Assy ............................................................  18
3-15.  Lever (BU Lock) ..............................................................  18
3-16. Close Lever ......................................................................  19
3-17.  Lever (DIR), Gear (IDL-B) .............................................  19
3-18. Chassis (Top) ...................................................................  20
3-19. Lever (Loading-L/R) ........................................................  21
3-20.  Lever (Disc Senser)/(Disc Stop) ......................................  22
3-21. Gear (IDL-C) ...................................................................  22

 ........................................................  23

 .......................  28

6-1.  Block Diagram – DVD SERVO, VIDEO Section – ........  29
6-2.  Block Diagram – MAIN, HDMI Section – ......................  30
6-3. Block 

Diagram 

 

– PANEL, POWER SUPPLY Section – ...........................  31

6-4. Printed 

Wiring 

Board 

 

– DMB-FIT Board (Component Side) – ..........................  33

6-5. Printed 

Wiring 

Board 

 

– DMB-FIT Board (Conductor Side) – ............................  34

6-6.  Schematic Diagram – DMB-FIT Board (1/7) – ...............  35
6-7.  Schematic Diagram – DMB-FIT Board (2/7) – ...............  36
6-8.  Schematic Diagram – DMB-FIT Board (3/7) – ...............  37
6-9.  Schematic Diagram – DMB-FIT Board (4/7) – ...............  38
6-10.  Schematic Diagram – DMB-FIT Board (5/7) – ...............  39
6-11.  Schematic Diagram – DMB-FIT Board (6/7) – ...............  40
6-12.  Schematic Diagram – DMB-FIT Board (7/7) – ...............  41
6-13. Printed Wiring Board 
 

– MAIN Board (Component Side) – ................................  42

6-14. Printed Wiring Board 
 

– MAIN Board (Conductor Side) – .................................  43

6-15.  Schematic Diagram – MAIN Board (1/4) – .....................  44
6-16.  Schematic Diagram – MAIN Board (2/4) – .....................  45
6-17.  Schematic Diagram – MAIN Board (3/4) – .....................  46
6-18.  Schematic Diagram – MAIN Board (4/4) – .....................  47
6-19.  Printed Wiring Board – IO Board – .................................  48
6-20.  Schematic Diagram – IO Board – ....................................  49
6-21.  Printed Wiring Board – FL Board – .................................  50
6-22.  Schematic Diagram – FL Board –....................................  51
6-23.  Printed Wiring Board – REG Board – .............................  52
6-24.  Schematic Diagram – REG Board – ................................  53

7-1. Bottom 

Cover 

Section 

......................................................  

69

7-2.  Panel (Top) Section .........................................................   70
7-3. MAIN 

Board 

Section 

......................................................  71

7-4. Chassis 

Section 

...............................................................  72

7-5.  Mechanism Deck Section-1 (CDM86A-DVBU101) ......   73
7-6.  Mechanism Deck Section-2 (CDM86A-DVBU101) ......   74
7-7.  Mechanism Deck Section-3 (CDM86A-DVBU101) ......   75
7-8.  Mechanism Deck Section-4 (CDM86A-DVBU101) ......   76

  .................................   77

The laser diode in the optical pick-up block may suffer electrostatic 
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.

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 pick-up 
block. Therefore, when checking the laser diode emission, observe 
from more than 30 cm away from the objective lens.

BEGIN IT BEFORE THE REPAIR
When the HCD-IS50 is checked, connect to SA-WSIS50 (for active 
speaker of DAV-IS50).
Be sure in advance the SA-WSIS50 is prepared.

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)

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.

1.  Press the [

I

/

1

] button to turn on the system.

2.  Press the [FUNCTION] button on the remote commander to 

select “DVD”.

3.  Touch the [x] sensor and press the [Z] button on the set 

simultaneously and hold down until “UNLOCKED” displayed 
on the fl uorescent indicator tube (around 5 seconds).

Note: When “LOCKED” is displayed, the disc slot lock is not released by 

turning power on/off with the 

[

I

/

1

] 

button.  

 MODEL 

PART 

No.

US and Canadian models 

3-296-013-0[]

AEP and UK models 

3-296-014-0[]

Russian model 

3-296-015-0[]

Singapore model 

3-296-016-0[]

Thai model 

3-296-017-0[]

Australian model 

3-296-019-0[]

Argentina model 

3-296-022-0[]

Latin America models except Argentina 

3-300-365-0[]

Saudi Arabia model 

3-878-308-0[]

1.  Press the [

I

/

1

] button to turn on the system.

2.  Press the [FUNCTION] button on the remote commander to 

select “DVD”.

3.  Touch the [x] and [B] sensor on the set simultaneously and 

hold down until “DEMO OFF” displayed on the fl uorescent 
indicator tube (around 5 seconds).

Note: When “DEMO ON” is displayed, the DEMO play lock is not released 

by turning power on/off with the 

[

I

/

1

]

 button.

NOTE OF REPLACING THE EEPROM (IC103) ON THE 
DMB-FIT BOARD
EEPROM (IC103) on the DMB-FIT board cannot exchange with 
single. When EEPROM (IC103) on the DMB-FIT board is damaged, 
exchange the entire mounted board.