Sony DSC-H7 Service Manual page 3

Model information table
Model
Destination
LCD
CK board
MS board
PL board
SW board
• Abbreviation
AR : Argentine model
AUS : Australian model
BR : Brazilian model
CH : Chinese model
CND : Canadian model
HK : Hong Kong model
J : Japanese model
JE : Tourist model
KR : Korea model
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS 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.
1. 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 contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
4. Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replacement.
DSC-H7/H9_L1
DSC-H7/Silver
US, CND, AEP, UK,
E, AUS, HK, CH,
KR, AR, J, JE
2.5 inch
CK-180, CK-181
MS-364
PL-046
SW-500
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
DSC-H7/Black DSC-H9/Silver
US, CND, AEP, UK, US, CND, AEP, UK,
E, AUS, HK, CH, E, AUS, HK, CH,
KR, J, JE
2.5 inch
CK-180, CK-181 CK-179, CK-182
MS-364
PL-046
SW-500
ATTENTION AU COMPOSANT AYANT RAPPORT
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
5. Check the B+ voltage to see it is at the values specified.
6. Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270°C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
— 3 —
DSC-H9/Black
US, CND, AEP, UK,
E, AUS, HK, CH,
KR, JE KR, AR, BR, JE
3.0 inch 3.0 inch
CK-179, CK-182
MS-366 MS-366
PL-047 PL-047
SW-499 SW-499
À LA SÉCURITÉ!