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Home >> HITACHI >> 42D4200 Service Manual
 
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HITACHI 42D4200
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English, German, French
Price: $4.99

Description of HITACHI 42D4200 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English, German, French

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Text excerpt from page 19 (click to view)
42PD4200 (PW1A)

Item

Power Unit Vs, Va Adjustment

Adj. point

Refer the figure below

Adjustment Preparations Adjustment Procedures (1) Turn on the set and perform (1) Turn Vs ADJ to adjust Vs voltage pre-heat run more than 1 to be within ±0.1V of the value min with burn-in screen. specified in the label on the panel.

Remarks Permissive level of voltage in sufficient time of heat-run performed is: Vs: within±0.45V Va: within±0.55V

(2) Receive full back pattern signal (or Video silence signal; it will be automatically turned off after a few seconds by power save function.)

(2) Turn Va ADJ to adjust Va voltage to be within ±0.2V of the value specified in the label on the panel.

(3) Connect voltmeter leads (3) Reconfirm that Vs voltage remains to Vs (or Va) and GND within ±0.1V of the specified value. test points of the power unit. Readjust if it� s outside of the margin. Label example <LOT>N6 Vs= 185.0V Va=65.0V Label position (Reference) Upper right If it� s hard to read the voltage value because of the wiring, highlight it in advance to be visible.

Power unit for WVGA

Va ADJ

Va

GND

Vs Vs ADJ

18

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