1-6-6
T9000EA
9. Focus Adjustment
Purpose: Set the optimum Focus.
Symptom of Misadjustment: If Focus Adjustment is
incorrect, blurred images are shown on the display.
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.
10. H fo Adjustment
Purpose: To get correct horizontal frequency.
Symptom of Misadjustment: If H f0 adjustment is in
correct, skew distortion will appear on the screen.
Note: R1583 --- Main CBA
Use Service remote control unit.
1. Connect Frequency Counter to R1583 and ground.
2. Set the unit to the VIDEO mode which is located be-
fore CH2 and no input is necessary. Enter the Ser-
vice mode. (See page 1-6-1.)
3. Operate the unit for at least 20 minutes.
4. Press "2" button on the Service remote control unit
and select H-ADJ mode.
5. Press "CH
o
/
p
" button on the Service remote con-
trol unit so that the display will change "0" ~ "7." At
this moment, Choose display one of them from "0"
~ "7" when the Frequency Counter shows 15.734
kHz±300Hz or closer.
6. Turn the power off and on again. (Main Power but-
ton on the TV unit.)
Test Point
Adj. Point
Mode
Input
---
Focus Control
RF
Mono-
scope
Tape
M. EQ.
Spec.
---
Pattern
Generator
See below
Test Point
Adj. Point
Mode
Input
R1583
CH
o
/
p
button
["H-ADJ"] MODE
---
Tape
M. EQ.
Spec.
---
Frequency
Counter
15.734kHz±300Hz
