SYLVANIA EWC1304
Manual de Servicio

Notes: Screen Control FBT --- MAIN CBA F.B.T= Fly Back Transformer Use the Remote Control Unit 1. Degauss the CRT and allow CRT to operate for 20 minutes before starting the alignment. 2. Set the screen control to minimum position. Input the Black raster signal from RF input. 3. Enter the Service mode. (See page 1-4-1.) Dimmed horizontal line appears on the CRT. 4. Press the "VOL p" button. (Press "VOL p" then display will change CUT OFF/ DRIVE adjustment). 5. Choose CUT OFF/DRIVE mode then press "1" button. This adjustment mode is CUT OFF (R). 6. Press the "CH o / p" button until the horizontal line becomes white. 7. Choose CUT OFF/DRIVE mode then press "2" button. This adjustment mode is CUT OFF (G). Press "CH o / p" until the horizontal line becomes white. 8. Choose CUT OFF/DRIVE mode then press "3" button. This adjustment mode is CUT OFF (B). Press "CH o / p" until the horizontal line becomes white. 9. Input the White Raster Signal from Video In. 10.Choose CUT OFF/DRIVE mode then press "4." Adjust the RED DRIVE as needed with the "CH o / p" buttons to get the following value, X= 286, Y= 294. 11.Choose CUT OFF/DRIVE mode then press "5." Adjust the BLUE DRIVE as needed with the "CH o / p" buttons to get the following value, X= 286. 12.Turn the power off and on again.

8. Sub-Brightness Adjustment
Purpose: To get proper brightness. Symptom of Misadjustment: If Sub-Brightness is incorrect, proper brightness cannot be obtained by adjusting the Brightness Control. Test point --Tape --Adj. Point CH o / p buttons M. EQ. Pattern Generator Figure Mode --Input SYMPTE 7.5IRE Spec. See below

White

Black This bar just visible
Fig. 4

Note: SYMPTE Setup level --- 7 IRE 1. Enter the Service mode. (See page 1-4-1.) Then input SYMPTE signal from RF input. 2. Press MENU button. (Press MENU button then display will change BRT, CNT, COL, TNT and V-T). Select BRT and press "CH o / p" buttons so that the bar is just visible (See above figure). 3. Turn the power off and on again.

1-6-5

T5553EA