HBD-TZ140 - Sony Audio Service Manual (repair manual). Page 4

Confi rmation procedure of version only:
1.  Connect this unit with TV monitor.
2.  Press the [

?/1

] button to turn on the system.

3.  Press the [

Z

] button.

 

(State of “Tray open”)

3.  After press the [

x

] button, press the [

DISPLAY] button on 

the remote commander.

4.  The version information appears to the TV monitor.
 

(Displayed character/values are example)

 

Model No.

DAV-TZ140 CEL

Release : 2011.10.21A
MPEG   : 2.12.13

MCU :  2.16.30

Region  :    2

HdcpKey :  Yes

OK

6.  Press the [ ] button on the remote commander.
7.  The system will return to normal mode.

LASER  DIODE  AND  FOCUS  SEARCH
Procedure:
1.  Open the case and turn POWER on with no disc inserted.
2. Confi rm that the following operation is performed while ob-

serving the objecting lens from the clearance of DVD mecha-
nism deck.

 Confi rm that laser beam is spread.

 Up and down motion of the objective lens. (2 times)

ON  CLEANING  DISCS,  DISC/LENS  CLEANERS
Do not use cleaning discs or disc/lens cleaners (including wet or 
spray types). These may cause the apparatus to malfunction.

IMPORTANT  NOTICE
Caution: This system is capable of holding a still video image or on-
screen display image on your television screen indefi nitely. 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 tele-
vision screen.
Projection televisions are especially susceptible to this.

ABOUT  “PROTECT”  DISPLAY 
If any one of the speakers is not connected, “PROTECT” may be 
displayed. This is a specifi cation of this unit. When performing an 
inspection for which disc playback is necessary, connect all of the 
speakers.

NOTE  OF  REPLACING  THE  IC101,  IC102  AND  IC103  ON  
THE  MAIN  BOARD  AND  THE  COMPLETE  MAIN  BOARD
When IC101, IC102 and IC103 on the MAIN board and the com-
plete MAIN board are replaced, it is necessary to spread the com-
pound between parts and heat sink.

Part No.   

Description

J-2501-221-A 

THERMAL COMPOUND (G747)

Spread the compound referring to the fi gure below.

CAPACITOR  ELECTRICAL  DISCHARGE  PROCESSING
When checking the board, the electrical discharge is necessary for 
the electric shock prevention.
Connect the resistor to both ends of respective capacitors.

• POWER 

board

 C905

: