MODEL IDENTIFICATIONSAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer :
MODEL NO. HCD-MJ1Check the antenna terminals, metal trim, Ometallized� knobs,
screws, and all other exposed metal parts for AC leakage. Check
FLAT COMPONENT SYSTEMleakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5mA (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
WT-540A. Follow the manufacturersO instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
US, Canadian model: AC120V �60Hz
VOM
AEP, UK, German, Italian model
or battery-operated AC voltmeter. The Olimit� indication is
: AC220-230V �50/60Hz
0.75V, so analog meters must have an accurate low-voltage
Hong kong, Sinagpore mdel
scale. The Simpson 250 and Sanwa SH-63Trd are examples of a
: AC110-120V/AC220-240V �50/60Hz
passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.To Exposed Metal
Parts on Set
For customers in Europe
This Compact Disc player is
classified as a CLASS 1 LASER
product.AC
The CLASSLASER1.5k1Voltmeter0.15?F
(0.75V)
PRODUCT label is located on
the rear exterior.
Earth Ground
This caution la-
bel is located
insuide the unit.Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE
WITH MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE
CAUTIONPARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
Use of controls or adjustments or performance of procedures other
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
than those specified herein may result in hazardous radiation expo-
SUPPLEMENTS PUBLISHED BY SONY.
sure.
ATTENTION AU COMPOSANT AYANT RAPPORT
� LA S?CURIT?!
LES COMPOSANTS IDENTIFI?S PAR UNE MARQUE ! SUR LES
DIAGRAMMES SCH?MATIQUES ET LA LISTE DES PIéCES SONT
CRITIQUES POUR LA S?CURIT? DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIéCES SONY
DONT LES NUM?ROS SONT DONN?S DANS CE MANUEL OU
DANS LES SUPPL?MENTS PUBLI?S PAR SONY.
� 3 � |
ACEC
SONY
