Sony CCD-M8, Service Manual, Page: 2 / 166

SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
I .
Check the area of your repair for unsoldered or
poorly-soldered connections. Check the entire
board surface for solder splashes and bridges.
2. Check the interboard wiring to ensure that no
wires are "pinched" or con tact high-wattage
resistors.
3.
Look for unauthorized replacement parts, par­
ticularly transistors, that were installed during a
previous repair. Point them out to the customer
and recommend their replacement.
SAFETY-RELATED COMPONENT WARNING!'
COMPONENTS IDENTIFIED BY SHADING AND MARK
ft
ON THE SCHEMATIC DIAGRAMS, EXPLODED
VIEWS AND IN THE PARTS LIST ARE CRITICAL TO
SAFE OPERATION. REPLACE THESE COMPONENTS
WITH SONY PARTS WHOSE PART NUMBERS APPEAR
AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFE OPERATION ARE IDENTI­
FIED IN THIS MANUAL. FOLLOW THESE PRO­
CEDURES WHENEVER CRITICAL COMPONENTS ARE
REPLACED OR IMPROPER OPERATION IS SUSPECTED.
-
2
-
4. Look for parts which, though functioning, show
obvious signs of deterioration. Point them out
to the customer and recommend their replace­
ment.
5. Check the B+ voltage to see it is at the values
specified.
ATTENTION AU COMPOSANT AVANT RAPPORT
A LA S
E
CURIT
E
! !
LES COMPOSANTS IDENTIFI
E
S PAR UN TRAM
E
ET
UNE MARQUE
ft
SUR LES DIAGRAMMES SCH
E
MA­
TIQUES, LES VUES EXPLOS
E
ES ET LA LISTE DES
PI
E
CES SONT CRITIQUES POUR LA S
E
CURIT
E
DE
FONCTIONNEMENT. NE REMPLACER CES COMPO­
SANTS QUE PAR DES PI
E
CES SONY DONT LES
NUM
E
ROS SONT DONN
E
S DANS CE MANUEL OU DES
SUPPL
E
MENTS PUBLI
E
S PAR SONY. LES R
E
GLAGES
DU CIRCUIT QUI SONT CRITIQUES POUR LA
S
E
CURIT
E
DE FONCTIONNMENT SONT IDENTIFI
E
S
DANS CE MANUEL. SUIVRE LES PROC
E
DURES QUAND
LES COMPOSANTS CRITIQUES SONT REMPLACES OU
LE FONCTIONNEMENT IMPROPRE EST SUSPECT
E
.