KDL-46HX900, KDL-46HX903, KDL-46HX905, KDL-52HX900, KDL-52HX903, KDL-52HX905 - Sony TV Service Manual (repair manual). Page 8

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KDL-46/52HX900,903,905(AEP/UK)
8
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 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.
8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.
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