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SONY KV27EXR90
Service Manual


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

Description of SONY KV27EXR90 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

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Text excerpt from page 26 (click to view)
, (4) Screen-corner Convergence

3-4. G2 (SCREEN) AND WHITE BALANCE ADJUSTMENTS
1. C2 (SCREEN) ADJUSTMENT(RV701)

1) Set the PICTURE and BRIGHTNESS to normal. 2) Confirm Gl voltage is within 30.0&5V. 3) Apply DC voltage of 180V to the cathodes of R, G and B from DC stabilized power source. 4) While watching the picture, adjust the G2 control (RV701) to the just the retrace line disappears.

(Using the Remote Commander)
2. WHITE BALANCE ADJUSTMENTS Affii a Permalloy assây corresponding to the misconverged areas.
b

1) 2)

Set to service mode. Press I=] -+ -1 to normal and if necessaries âTRINITONEâ set to âLOWâ by or /=J .

q

3) 4) 5)

Input an entire white signal. Set the PICTURE to minimum. Select S BRT with m and 1 , and then set the level to minimum with 1 and @

6) Select G CUT and B CUT with 1 and m.
d

And adjust the level with m and m for the best white balance. 7) Set the PICTURE to maximum. 8) Select G AMP and B AMP with 1 and 4, and adjust the level with @ and H for the best white balance. 9) Write into the memory by pressing IMUTING] then [ENTER]. 3. SUB BRIGHT ADJUSTMENT 1) Set to service mode. 2) Input a staircase signal of black and white from the pattern generator. 3) BRIGHTNESS *** RESET
FOCUS

3-3. FOCUS
1. Tune in an off-air signal.

2. PICTURE -control to 80%. 3. Adjust the focus VR on A board so that the focus at the center of the screen is optimum. A magenta ring will appear if the focus is adjusted only in the center of the screen. Adjust evenly throughout the entire screen.

---f

PICTURE *****. *. .

minimum

4) Select S BRT with m and m , and adjust SUB BRIGHT level with H and B so that the stripe second from the right is dimly lit.

white second f ram the right

-26-

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