Sony 40EX703 User Manual

KDL-32EX700/40EX700/40EX703/46EX700/46EX701/46EX703/ 6

52EX700/52EX701/52EX703/60EX700/60EX701/60EX703 

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 splashes and bridges.

2.  Check the interboard wiring to ensure that no wires are “pinched” or touching 

high-wattage resistors.

3.  Check that all control knobs, shields, covers, ground straps, and mounting 

hardware have been replaced. Be absolutely certain that you have replaced 

all the insulators.

4.  Look for unauthorized replacement parts, particularly transistors, that were 

installed during a previous repair. Point them out to the customer and 

recommend their replacement.

5.  Look for parts which, though functioning, show obvious signs of deterioration. 

Point them out to the customer and recommend their replacement.

6.  Check the line cords for cracks and abrasion. Recommend the replacement 

of any such line cord to the customer.

7.   Check the antenna terminals, metal trim, “metallized” knobs, screws, and 

all other exposed metal parts for AC leakage. Check leakage as described 

below.

Figure A. Using an AC voltmeter to check AC leakage.