Belkin DLA-HD2KE, DLA-HD2KU service manual Safety Check after Servicing, AC Line Voltage Region

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1.1.2 Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compli- ance with safety standards.

(1)Insulation resistance test

Confirm the specified insulation resistance or greater be- tween power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, ear- phone jacks, etc.).See table 1 below.

(2)Dielectric strength test

Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See Fig.1-1-11 below.

(3)Clearance distance

When replacing primary circuit components, confirm spec- ified clearance distance (d), (d') between soldered termi- nals, and between terminals and surrounding metallic parts. See Fig.1-1-11 below.

d

d' Chassis

Power cord primary wire

Fig.1-1-8

(4)Leakage current test

Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed ac- cessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, ear- phone jacks, etc.).

Measuring Method : (Power ON)Insert load Z between earth ground/power cord plug prongs and externally ex- posed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig.1-1-9 and follow- ing Fig.1-1-12.

 

 

a

b

Externally

Z

A

c

 

 

 

exposed

V

 

 

accessible part

 

 

 

Fig.1-1-9

(5)Grounding (Class 1 model only)

Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in, Video out, Audio in, Audio out or Fixing screw etc.).Measuring Method:

Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See Fig.1-1-10 and grounding specifications.

AC inlet

Exposed accessible part

Earth pin

MIlli ohm meter

Grounding Specifications

 

 

Region

Grounding Impedance (Z)

USA & Canada

Z

 

0.1 ohm

 

 

 

 

Europe & Australia

Z

 

0.5 ohm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.1-1-10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC Line Voltage

Region

 

 

 

 

 

( )

Dielectric Strength

 

Clearance Distance (d), (d')

Insulation Resistance R

 

100 V

Japan

R

 

 

1 M /500 V DC

AC 1 kV 1 minute

 

 

d, d'

 

3 mm

 

 

 

 

 

 

 

 

 

 

 

 

100 to 240 V

 

 

AC 1.5 kV 1 minute

 

 

d, d'

 

4 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

110 to 130 V

USA & Canada

1 M

 

 

 

R

 

12 M /500 V DC

AC 1 kV 1 minute

 

 

d, d'

 

3.2 mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

110 to 130 V

 

 

 

 

 

 

 

 

 

 

 

AC 3 kV 1 minute

 

d

 

4 mm

Europe & Australia

R

10 M /500 V DC

 

 

(Class

)

d'

 

8 mm (Power cord)

 

 

 

 

200 to 240 V

 

 

 

 

 

 

 

 

 

 

 

AC 1.5 kV 1 minute

 

d'

 

6 mm (Primary wire)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Class

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.1-1-11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC Line Voltage

Region

 

 

 

 

 

 

Load Z

Leakage Current (i)

 

 

 

 

a, b, c

100 V

Japan

 

 

 

 

 

1

 

 

i

 

1 mA rms

 

Exposed accessible parts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

110 to 130 V

USA & Canada

0.15

 

 

 

 

 

 

i

 

0.5 mA rms

 

Exposed accessible parts

 

 

 

 

 

1.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

110 to 130 V

 

 

 

 

 

 

 

 

 

 

 

i

 

0.7 mA peak

 

Antenna earth terminals

Europe & Australia

 

 

 

 

 

2

 

 

i

 

2 mA dc

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

220 to 240 V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

i

 

0.7 mA peak

 

Other terminals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

i

 

2 mA dc

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig.1-1-12

NOTE :

These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

1-4 (No.PA019)

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Contents Table of Contents DLA-HD2KU, DLA-HD2KESpecification Section Precaution Safty PrecautionsPrecautions during Servicing Connector part number E03830-001Safety Check after Servicing AC Line Voltage RegionRisk of personal injury and damage to the product Additional cautionary itemsInstallations Installation methodInstallation site and status Required spacingSection Specific Service Instructions Lamp Unit Instructions Projection Specifications and Notes Service PolicyConnection and Operation Cautions Main Difference ListService Menu EnterRelease Basic operationSetting items Initial value Adjustment Description ObjectMenu Section Disassembly Terminal PWB Assy and Main PWB Assy Terminal Board and Shield SheetMain PWB Assy 14 No.PA019POWERSUPPLYSHIELDCASE1andLAMPBALLASTUNIT Lamp Unit Upper BracketPower Supply PWB Assy Power Supply Control Module PWB Assy14 IR2 PWB Assy Optical BLOCK, Intake FANDD SUB1 PWB Assy Incl. DD SUB2 PWB Assy Cooling FAN2, DUCT2, Cooling FAN3, DUCT3, DUCT4Before Starting Adjustment Section AdjustmentInstruments and Tools Required Adjustments by Replacing Components Main DD SUB1.2 Power Lamp Optical Ballast BlockAdjustment Procedure ILA Common DC adjustmentReplacing Components „ Preparation„ADJUSTMENT DC adjustment „MEASUREMENTGamma adjustment Page Page Shading adjustment „ Shading AdjustmentArea Shading Menu STC Shading DYN Shading5 16-PHASE Vertical Bars adjustment „MEASUREMENT Ghost adjustment „PREPARATIONFrame adjustment Section Troubleshooting Protective Sensor and Protective SwitchLED Indicator Warning Indications Lamp Temp Stand by OperateMearsures during abnormality Abnormality Mode Measure CauseYES Error LOG SELF-DIAGONOSIS Record and Indication Victor Company of JAPAN, Limited

DLA-HD2KU, DLA-HD2KE specifications

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