HBD-TZ140 - Sony Audio Service Manual (repair manual). Page 3

 .............................................   3

2-1. Disassembly 

Flow 

...........................................................   8

2-2. SS 

Top 

Cover 

..................................................................   8

2-3. Door 

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

2-4. POWER 

Board 

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

2-5.  Front Cabinet Block ........................................................   10
2-6.  STANDBY Board, CONTROL Board ............................   11
2-7.  DVD Mechanism Deck Block ........................................   12
2-8. FFC 

Holder 

(Former type (F-8829F1): Except Argentina model) ......   13

2-9.  Optical Pick-up Block (CMS-S76RFS3G) 

(Former type (F-8829F1): Except Argentina model) ......   14

2-10.  DVD Mechanism Deck (New type (CMS-LS5FP)) .......   15
2-11.  Holder Chuck (New type (CMS-LS5FP)) ......................   16
2-12.  Tray Disc-1 (New type (CMS-LS5FP)) ..........................   16
2-13.  Tray Disc-2 (New type (CMS-LS5FP)) ..........................   17
2-14.  Optical Pick-up Block-1 (CMS-S79RFVP) 

(New type (CMS-LS5FP)) ..............................................   18

2-15.  Optical Pick-up Block-2 (CMS-S79RFVP) 

(New type (CMS-LS5FP)) ..............................................   19

2-16. MAIN Board ...................................................................   20

3-1. Block 

Diagram 

................................................................  21

3-2.  Printed Wiring Boards - PANEL Section - .....................   24
3-3.  Schematic Diagram - PANEL Section - ..........................   25
3-4.  Printed Wiring Board - POWER Board - ........................   26
3-5.  Schematic Diagram - POWER Board - ..........................   27
3-6. Printed 

Wiring 

Board 

- MAIN Board (Component Side) - ................................   28

3-7. Printed 

Wiring 

Board 

- MAIN Board (Conductor Side) - ..................................   29

3-8.  Schematic Diagram - MAIN Board (1/5) - .....................   30
3-9.  Schematic Diagram - MAIN Board (2/5) - .....................   31
3-10.  Schematic Diagram - MAIN Board (3/5) - .....................   32
3-11.  Schematic Diagram - MAIN Board (4/5) - .....................   33
3-12.  Schematic Diagram - MAIN Board (5/5) - .....................   34

4-1.  Top Cover Section 

(Former type (F-8829F1): Except Argentina model) ......   35

4-2.  Top Cover Section (New type (CMS-LS5FP)) ...............   36
4-3. Chassis 

Section 

...............................................................  37

4-4.  DVD Mechanism Deck Section 

(Former type (F-8829F1): Except Argentina model) ......   38

4-5.  DVD Mechanism Deck Section 

(New type (CMS-LS5FP)) ..............................................   39

 ...............................   40

The DVD mechanism deck for this unit has been changed in the 
midway of production. About the New/Former discrimination, 
refer to “ABOUT THE DVD MECHANISM DECK” on page 5.

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.

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.

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.

ABOUT  PART  REPAIR  OF  EACH  BOARD
When boards installed by this unit are defective, replace the com-
plete board. However, some of mounted parts are replaceable. Re-
fer to “5. ELECTRICAL PARTS LIST” (page 40) for parts that 
can be replaceable.

RELEASING  THE  DISC  TRAY  LOCK
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 on the system.

2.  Touch the [FUNCTION] sensor to select “DVD/CD”.
3. Insert 

disc.

4.  Touch the [

x

] and [

Z

] sensors simultaneously and hold down 

unit “LOCKED” displayed on the fluorescent indicator tube 
(around 5 seconds).

Releasing Procedure:
1.  Press the [

?/1

] button to turn on the system.

2.  Touch the [FUNCTION] sensor to select “DVD/CD”.
3.  Touch the [

x

] and [

Z

] sensors simultaneously and hold down 

unit “UNLOCKED” displayed on the fluorescent indicator 
tube (around 5 seconds).

 When “LOCKED” is displayed, the disc tray lock is not released by 

turning power on/off with the [?/1] button.