SAFETY-RELATED COMPONENT WARNING!!ATTENTION AU COMPOSANT AYANT RAPPORT
� LA S?CURIT?!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHLES COMPOSANTS IDENTIF?S PAR UNE MARQUE 0 SUR LES
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSDIAGRAMMES SCH?MATIQUES ET LA LISTE DES PIéCES SONT
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECRITIQUES POUR LA S?CURIT? DE FONCTIONNEMENT. NE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERSREMPLACER CES COMPOSANTS QUE PAR DES PIéSES SONY
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSDONT LES NUM?ROS SONT DONN?S DANS CE MANUEL OU
PUBLISHED BY SONY.DANS LES SUPP?MENTS PUBLI?S PAR SONY.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
1.Check the area of your repair for unsoldered or poorly-soldered4.Look for parts which, through functioning, show obvious signs
connections. Check the entire board surface for solder splashesof deterioration. Point them out to the customer and
and bridges.recommend their replacement.
2.Check the interboard wiring to ensure that no wires are5.Check the B+ voltage to see it is at the values specified.
"pinched" or contact high-wattage resistors.6.Flexible Circuit Board Repairing
3.Look for unauthorized replacement parts, particularlyY Keep the temperature of the soldering iron around 270uC
transistors, that were installed during a previous reduring repairing.pair. Point
them out to the customer and recommend their replacement.Y Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
Y Be careful not to apply force on the conductor when soldering
or unsoldering.
N 2 N |
ACEC
