DOWNLOAD Sony DAV-DZ830W / DAV-DZ850KW / HCD-DZ830W / HCD-DZ850KW Service Manual ↓ Size: 7.51 MB | Pages: 119 in PDF or view online for FREE

5

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 flexible board is easily damaged and should be handled with
care.

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 emission,
observe from more than 30 cm away from the objective lens.

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :

1. Press the  ?/1  button to turn the set on.
2. Press the [FUNCTION] button to set DVD function.
3. Insert a disc.
4. Press the  

x  

button and the  

A 

 button simultaneously for five

seconds.

5. The message “LOCKED” is displayed and the tray is locked.

1. Press the  

x  

button and the  

A 

 button simultaneously for five

seconds again.

2. The message “UNLOCKED” is displayed and the tray is

unlocked.

When “LOCKED” is displayed, the tray lock is not released by turning
power on/off with the  ?/1  button.

•

Do not use cleaning discs or disc/lens cleaners
(including wet or spray types). These may cause the apparatus
to malfunction.

Caution: This system is capable of holding a still video image or
on-screen display image on your television screen indefinitely.
If you leave the still video image or on-screen display image
displayed on your TV for an extended period of time you risk
permanent damage to your television screen.
Projection televisions are especially susceptible to this.

Use this mode when returning the set to the customer after repair.
Procedure:

1. Press the  

?/1 

 button to turn the set on.

2. Press the [FUNCTION] button to set the function “DVD”.
3. Remove all discs, and then press two buttons  

H

  and  

?/1

simultaneously.

4. After a message “MECHA LOCK” is displayed on the

fluorescent indicator tube, pull out the AC plug.

5. To exit from this mode, press the  

?/1

  button to turn the set

on.

The system can play CD-ROMs/CD-Rs/CDRWs recorded in the
following formats:

– audio CD format
– VIDEO CD format
– MP3 audio tracks, JPEG image files, and DivX video files of

format conforming to ISO 9660 Level 1/Level 2, or its extended
format, Joliet

The system can play DVD-ROMs/DVD+RWs/DVD-RWs/
DVD+Rs/DVD-Rs recorded in the following formats:

– MP3 audio tracks, JPEG image files, and DivX video files of

format conforming to UDF (Universal Disc Format)

The system cannot play the following discs:

•

CD-ROMs/CD-Rs/CD-RWs other than those recorded in the
formats listed on “Note about CDs/DVDs”

•

CD-ROMs recorded in PHOTO CD format

•

Data part of CD-Extras

•

DVD Audios

•

Super Audio CD

•

DATA DVDs that do not contain MP3 audio tracks, JPEG
image files, or DivX video files

•

DVD-RAMs

Also, the system cannot play the following discs:

•

A DVD VIDEO with a different region code

•

A disc that has a non-standard shape (e.g., card, heart)

•

A disc with paper or stickers on it

•

A disc that has the adhesive of cellophane tape or a sticker
still left on it

In some cases, CD-R/CD-RW/DVD-R/DVD-RW/DVD+R/
DVD+RW cannot be played on this system due to the recording
quality or physical condition of the disc, or the characteristics of
the recording device and authoring software.
The disc will not play if it has not been correctly finalized. For
more information, see the operating instructions for the recording
device.
Note that some playback functions may not work with some
DVD+RWs/DVD+Rs, even if they have been correctly finalized. In
this case, view the disc by normal playback. Also some DATA CDs/
DATA DVDs created in Packet Write format cannot be played.

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 from DTS, Inc.

“DTS” and “DTS Digital Surround” are registered trademarks
of DTS, Inc.

6

Peel off the seal and so the lever is moved 
in the direction of the arrow with the thin rod. 

Insert a tapering driver into the aperture of the unit bottom, and slide it in the direction of the arrow.

seal

disc tray

When disassembling the machine, be sure to discharge the charged electricity in the following capacitors.
Use a resistor of 800 ohms, 2 Watts for discharging the following capacitors. 

POWER board
   C903: 440 V (DZ850KW) / 390 V (DZ830W)
   C932, C933, C934, CN904: 30 V 

MAIN board
   CN3002: 30 V

Point of capacitor discharge for C932, C933, C934: 

Connect to the red and black wire of CN904 

Point of capacitor discharge for C903: 

Connect to the foot of CN903 

800 

Ω

/2W

7

The following parts on the POWER board must be fixed by using the adhesive agent (such as Sony Bond Master) as it is specified by Safety
Regulations. When any part or printed circuit board is replaced during repair work, be sure to confirm that the following capacitors and resistors
are fixed by using the adhesive agent (such as Sony Bond Master) without fail.

POWER board : • C924 and R927 (refer to below fig.)

• C913 (Push down to C903 side and so fix.)
• C910 and C930 (refer to below fig.)
• EB905 side of C903
• EB905 side of C934
• C964 and C963 (refer to below fig.)
• Space between C933 and C932
• C908 and Q901 (Don’t touch IC901.)

OK:more than 3.5mm

NG:less than 3.5mm

OK:more than 8mm

NG:less than 8mm

OK:more than 8mm

NG:less than 8mm

Don't incline C924 to outside.

C910

C924

R927

C930

C964

C963 

Please take the above-mentioned position in the repair of MAIN board. 
In that case, it is necessary the following extension cable during CN304 on IO-S-OUT board and CN4302 on MAIN board (DZ850KW), 
CN304 on IO-SCART board and CN4301 on MAIN board (DZ830W).

DZ830W    : jig P/N: J-2501-102-A
                   (pitch 1.00 mm/13p/length 300 mm)

DZ850KW : jig P/N: J-2501-242-A
                  (pitch 1.00 mm/11p/length 300 mm)

CN304

jig

MAIN board service position

CN4302 (DZ850KW)
CN4301 (DZ830W)

MAIN board

: • C3081 and C3082

(Bend down C3081 to C3082)(DZ830W only)

8

Please defend and install the direction of the below fig in the following parts on the POWER board.

LF902

LF901

R913

R912

R913

R912

L931

mark this side

When installing a new OP unit, be sure to connect the flexible 
printed circuit board first of all before removing the static 
electricity prevention solder bridge by unsoldering. 
Remove the static electricity prevention solder bridge by 
unsoldering after the flexible printed circuit board has already 
been connected. 
(Do not remove nor unsolder the solder bridge as long as the 
OP unit is kept standalone.)

Please fold in the directtion of the arrow and set up at 

replacement of C803, C802, L801, and L802 on FL board.

L801

L802

C803

+

–