View Sony ICF-CD830 / ICF-CD830L Service Manual online
Laser diode properties: Material: GaAlAs
Emission duration: Continuous
Laser output: Less than 44.6
distance of about 200 mm from the objective
lens surface on the optical pick-up block
with 7 mm aperture.)
Australia: 12-hour system
Other countries: 24-hour system
ICF-CD830L (UK model):
Approx. 1 725 g (3 lb. 13 oz.)
2-2. KEY BOARD ································································ 5
2-3. TRANSFORMER BOARD ··········································· 6
2-4. MAIN CHASSIS ··························································· 6
2-5. OPTICAL PICK-UP BLOCK (KSM-213CDM) ·········· 6
5-2. BLOCK DIAGRAM (CD830) ···································· 11
5-3. BLOCK DIAGRAM (CD830L) ·································· 12
5-4. SCHEMATIC DIAGRAM
5-12. IC PIN FUNCTION DESCRIPTION ························· 22
6-2. CHASSIS SECTION ··················································· 24
6-3. OPTICAL PICK-UP SECTION
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a
passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)
• Notice that the minus side of a tantalum capacitor may be dam-
Parts on Set
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
The flexible board is easily damaged and should be handled with
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.
BLOCK OR BASE UNIT
other than those specified herein may result in hazardous
The CLASS 1 LASER PRODUCT label is located on the
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1
2. Turn on S401 as following figure.
3. Confirm that the laser diode emission while observing the
circuit or Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.
flash in the display.
year appears in the display.
day, hour, and minute.
the counting of the seconds, and you will
hear two short beeps.
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
12-hour system: “AM 12:00” = midnight
24-hour system: “0:00” = midnight
start counting from zero.
daylight saving time (summer time)
To deactivate the summer time function, press
D.S.T./SUMMER T. again.
Antenne fil FM