DAR-X1R, HCD-X1R - Sony Audio Service Manual (repair manual). Page 4

4

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.

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 viscou-s (sticky, less prone to flow)

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.

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

1. Press the  

I

/1

  button to turn the power on.

2. Press the [DVD] button to select “DVD”.
3. While pressing the

x

button, press the  

Z

 

button until

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

When “TRAYLOCKED” is displayed, the disc anti-theft is not
released by turning power on/off with the

I/

1

button.

1. Press the  

I

/1

  button to turn the power on.

2. Press the [DVD] button to select “DVD”.
3. While pressing the

x

button, press the  

N

button until

“DEMO OFF” appears on the fluorescent indicator tube
(around 5 seconds).

When “DEMO ON” is displayed, the DEMO mode is not released
by turning power on/off with the

I/

1

button.

Replacement of R8A34012BG (IC103) on the RD-60AU board used
in this set requires a special tool.

When the RD-60AU board is replaced by a repair for a fee, throw
away the RD-60AU board after obtaining consent of not returning
of the RD-60AU board to the customer. When throwing away the
RD-60AU board, be sure to throw away after destroying flash
memory (IC502) physically with the hammer etc.

Flash memory (IC502) on the RD-60AU board cannot exchange
with single. When flash memory (IC502) on the RD-60AU board is
damaged, exchange the entire mounted board.

When complaint by the effect of the sound field, check as follows
and confirm abnormality is not found in the set.

Press [/1.

The system turns on.

Press Z (open/close) on the recorder, and 
place the Setup Disc on the disc tray.

Press Z (open/close) on the recorder to 
close the disc tray.

The Setup Disc menu appears.

DAV-X1 / DAR-X1 Series

This setup disc is common for DAV-X1/DAR-X1 series.

</,

, and press H or .

The selected option starts.

If a satisfactory surround sound effect cannot 
be achieved, adjust the speaker positions.

Press x to stop the disc.

Press Z (open/close) on the recorder to 
eject the disc.

RL

RR

FL

FR

C

SW