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It's a grate service manuals.Have many details and the writing it's so clear.You have all you want in manual,nothing missing,belive me.I'm verry satisfied of this manual.
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Great scanned service manual
Usefull informations.
I will buy again!
Best Regards
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The manual describes this product very good. It has the basic things to know and also a more detailed look. Very well made!
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An excellent document to assist in the repair of my old personal tape player. It includes full circuit diagrams and physical layout drawings and full instructions on disassembly and fault finding.
Well worth the meagre price.
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Very good conversation, Pretty fast Service, wood do it again,
Have paid by Paypal, so i got the Service Manual online after 15 Min.
Very helpfully.
Greeting from Germany,
Hans
AV-48WP74 AV-56WP74 3.8.5 VIDEO ADJUSTMENT Item A-D CONVERTER OFFSET adjustment (1) Measuring instrument Signal generator Remote control unit 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
Upper side of screen whole black
Description [WHITE BALANCE LOW LIGHT ADJUSTMENT for SINGLE SCREEN] (1) Input the 480i (DVD) whole black signal from the COMPONENT VIDEO terminal. (2) Select STANDARD mode with [VIDEO STATUS] (3) (4) (5) key. Select FULL mode with [ASPECT] key. Select 1.PICTURE / SOUND from SERVICE MENU. It goes into the zero mode screen of difference adjustment of color, using <F44>(Image adjustment) as 0 to 1, and using <F45>(Image adjustment mode change) as 0 to 3. Set <F47> (minimum value B at the time of detection) to 0 and <F48> (maximum value A at the time of detection) to 0.
(6)
Fig. 1 <FULL screen> To be slightly whitish rather than whole black
(7) Press [MUTING] key and memorize the set value. (8) Press [BACK] key and display SERVICE MENU screen again. (9) Select 8. PP from SERVICE MENU. (10) Adjust <ADM012> (R offset setup) and <ADM014> (B offset setup) so that the adjustment result out put screen in the upper half of a screen becomes black color.(Fig.1) (11) If the screen is reddish, adjust <ADM012>(R offset setup) so that the redness is reduced to the minimum. (12) If the screen is bluish, adjust <ADM014>(B offset setup) so that the blue is reduced to the minimum. (13) Press [MUTING] key and memorize the set value. [BRIGHTNESS ADJUSTMENT for SPLIT RIGHT
Fig. 2 <SPLIT screen>
SCREEN] (1) Select STANDARD mode with [VIDEO STATUS] key. (2) Select FULL mode with [ASPECT] key. (3) Press [SPLIT] key to enter the SPLIT screen mode, then input gray scale signal on both left and right channels. (4) Select 1.PICTURE/SOUND from SERVICE MENU. (5) It goes into the Y adjustment MAX mode, using <F45> as 0 and using <F44> as 0 to 1. (6) Set <F47> to 16 and <F48> to 16. (7) Press [MUTING] key and memorize the set value. (8) Press [BACK] key and display the SERVICE MENU. (9) Select 8. PP from SERVICE MENU. (10) Adjust <ADM013> (G offset setup) so that the screen on the right upper side becomes slightly whitish rather (6% black) than whole black.(Fig.2) (11) Press [MUTING] key and memorize the set value.
(No.52105)1-55
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