Sylvania 6513VD Service Manual page 24

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 Adj. Point
CH o / p
---
buttons
Tape M. EQ.
Pattern
---
Generator
Figure
White
Note: IQW Setup level --- 7.5 IRE
Use service remote control unit
1. Enter the Service mode. (See page 1-7-1)
Then input IQW signal from RF Input.
2. Press "PICTURE" button on the service remote con-
trol unit and Select "BRT" mode. (Display changes
"BRT," "CNT," "CLR," "TNT," and "V-TINT" cycli-
cally when "PICTURE" button is pressed.) Press
"CH o / p" buttons so that the bar is just visible (See
above figure).
3. Turn the power off and on again, using the main
power button on the TV unit.
Mode Input
RF IQW
Spec.
See below
Black
This bar
just
visible
Fig. 3
1-7-4
9. Focus Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
Test Point Adj. Point
--- Focus Control
Tape M. EQ.
Pattern
---
Generator
Note: Focus VR (FBT) --- Main CBA,
FBT= Fly Back Transformer
1. Operate the unit more than 30 minutes
2. Face the unit to the East and degauss the CRT us-
ing a degaussing coil.
3. Input the Monoscope Pattern.
4. Adjust the Focus Control on the FBT to obtain clear
picture.
Mode Input
Mono-
RF
scope
Spec.
See below
TD709EA