Sony SB-V500 Service Manual page 2

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-soldered connections. Check the entire
board surface for solder splasher 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, 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 MARK A\OR DOTTED
LINE WITH MARK AXON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE OP-
ERATION. REPLACE THESE COMPONENTS WITH SONY
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED
BY SONY.
4.
Look for parts which, though functioning, show
obvious signs of deterioration. Point them out
to the customer and recommend their replace-
ment.
Check the B+ voltage to see it is at the values
specified.