DOWNLOAD Sony ICF-CD830 / ICF-CD830L Service Manual ↓ Size: 4.9 MB | Pages: 53 in PDF or view online for FREE

3

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.

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.

This Compact Disc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located on the
bottom exterior.

On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1

1. Open the CD lid.
2. Turn on S401 as following figure.
3. Confirm that the laser diode emission while observing the

objecting lens. When there is no emission, Auto Power Control
circuit or Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.

4

This section is extracted from
instruction manual.

Plug in the clock radio.

The display will flash “AM 12:00” or “0:00”.

Press CLOCK for a few seconds.

You will hear a beep and the year will start to
flash in the display.

Press  TIME SET + or – until the correct
year appears in the display.

Press CLOCK once.

Repeat steps 3 and 4 to set the month,
day, hour, and minute.

After setting the minute, press CLOCK to start
the counting of the seconds, and you will
hear two short beeps.

• To display the year and date, press SNOOZE/

DATE/SLEEP OFF once for the date, and within
2 seconds press it again for the year. The
display shows the date or year for a few
seconds and then changes back to the current
time.

• To set the current time rapidly, hold down

TIME SET + or –.

• The clock system varies depending on the

model you own.
12-hour system: “AM 12:00” = midnight
24-hour system: “0:00” = midnight

• In step 5, when you press CLOCK after the

minute setting to activate the clock, the seconds
start counting from zero.

Press D.S.T./SUMMER T.
“

” is displayed and the time indication

changes to summer time.
To deactivate the summer time function, press
D.S.T./SUMMER T. again.

5

 Follow the disassembly procedure in the numerical order given.

• The equipment can be removed using the following procedure.

4

2

5

× 

3

× 

7

6

1

3

2

1

×

4

6

2

×

1

3

4

1

×

2

×

4

3

3

1

×

2

×