Sony AZ1-L service manual Safety CHECK-OUT, Figure A. Using an AC voltmeter to check AC leakage

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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.

To Exposed Metal

Parts on Set

 

AC

0.15 μF

Voltmeter

 

(0.75V)

Earth Ground

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

KDL-32EX305/32EX306/32EX405/40EX405/40EX406/46EX405

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Image 10 Sony AZ1-L service manual Safety CHECK-OUT, Figure A. Using an AC voltmeter to check AC leakage
Contents AZ1-LChassis Self Diagnosis Model List Table of Contents Table of Contents Specifications SistemaSpecifications Alimentación y otras especificacionesSAFETY-RELATED Component Warning Carrying the TVSAFETY-RELATED Warning USE Caution When Handling the LCD PanelSafety CHECK-OUT Figure A. Using an AC voltmeter to check AC leakageHOW to Find a Good Earth Ground Safety CHECK-OUTLeakage Test Self Diagnosis Function Diagnostic Test Indicators Self Diagnosis Functions Standby LED Flash CountViewing the Self Check Diagnostic List Backlite Temperr Fanerr ReservedClearing the Self Check Diagnostic List Exiting the Self Check Diagnostic ScreenSEC 1. DISASSEMBLY/PART Number Information TABLE-TOP Stand Assembly RemovalDISASSEMBLY/PART Number Information Rear Cover and Vesa Bracket RemovalAC Inlet AC INLET, Speaker Brackets and Loudspeakers RemovalLoudspeaker BRACKET, SP 40RBAL BOARD, Complete Switch UnitSUPPORT, Panel LCD PanelCleaning the LCD Panel Screw LegendConnectors FLYER, Safety Accessories & PackingRemote Commander Supplementstand InstallationSEC 2. Service Adjustments Accessing Service Adjustment ModeService Adjustments Viewing the Service MenusAdjustments After Replacing the BAL Board or LCD Panel Using the Remote Commander to View or Change Service DataUpdating the Software Display the Digital Service Menu Selecting the ModelSetting the Destination Selecting the TV ColorVerifying the Model and Panel Information GaisoReconnecting ALL Cables Product IDWhite Balance Adjustments Resetting the TV to Factory Condition Resetting the TV to Factory Condition Using Service ModeHLR Switch Unit SEC 3. DiagramsCircuit Boards Location Diagrams Block DiagramKDL-32EX305/32EX306/32EX405/40EX405/40EX406/46EX405