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JVC AV48WP74
Service Manual


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

Description of JVC AV48WP74 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.

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Text excerpt from page 56 (click to view)
AV-48WP74 AV-56WP74 Measuring instrument Signal generator Remote control unit

Item A-D CONVERTER OFFSET adjustment (2)

Test point

Adjustment part [1.PICTURE/SOUND] F44 : Image adjustment F45 : Image adjustment of mode change F47 : Minimum value B at the time of detection F48 : Maximum value A at the time of detection [8.PP] ADM012 : R offset AMD013 : G offset AMD014 : B offset

Description [WHITE BALANCE LOW LIGHT ADJUSTMENT for SPLIT RIGHT SCREEN] (1) Press [SPLIT] key to enter the SPLIT screen mode. (2) Select STANDARD with [VIDEO STATUS] key. (3) Select FULL mode with [ASPECT] key. (4) Select 1 PICTURE SOUND from SERVICE MENU. (5) It goes into the zero mode screen of difference adjustment of color, using <F45>(Image adjustment mode change) as 0 to 3 and <F44>(Image adjustment) as 0 to 1. (6) Set <F47> (minimum value B at the time of detection) to 0 and <F48> (minimum value A at the time of detection) to 0. (7) Press [MUTING] key and memorize the set value. (8) Press [BACK] key and back to SERVICE MENU. (9) Select 8.PP from SERVICE MENU. (10) Adjust <ADM012> (R offset setup) and <ADM014> (G offset setup) so that right upside screen becomes whole black. (11) Press [MUTING] key and memorize the set value. (12) Select 1.PICTURE/SOUND from SERVICE MENU. (13) Change the data of <F44> 1 to 0 and <F45> 3 to 0. (14) Press [MUTING] key and memorize the set value.

Whole black

Fig. 3 <SPLIT screen>

1-56 (No.52105)

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