Purity And Convergence Procedure - Panasonic CT-36HL43G Service Manual

A-BOARD
STBY 7V (BY IC804) A-Board TPP9
MAIN 9V (BY IC875) A-Board TPA7
MAIN 5V (BY IC871) A-Board TPA8
GC 2.5V (BY IC872) A-Board TPA9
STBY 3.3V (BY A1 CONNECTOR) A-
Board TPA16
D-BOARD
+B2 (BY D2 CONNECTOR) D-Board
TPD144
25V (BY D40 CONNECTOR) D-Board
TPD250
15V (BY D4 CONNECTOR) D-Board
TPD150
-15V (BY RL451) D-Board TPD151
SOUND+ (BY D4 CONNECTOR) D-Board
TPD160
SOUND- (BY D4) D-Board TPD161
220V (BY D2 CONNECTOR) D-Board
TPD7
12V (BY IC433) D-Board TPA6
High voltage check
1. Select an active TV channel and confirm that horizontal is in sync.
2. Adjust BRIGHTNESS and PICTURE using PICTURE icon menu so
video just disappears.
3. Confirm B+ 144 ± 1.5V is within limit.
4. Using a high voltage meter confirm that the high voltage is 33.0 ±
1.0kV

14. Purity and convergence procedure

Adjustment is necessary only if the CRT or the deflection yoke is replaced or if the setting was
disturbed. The complete procedure consists of:
1. Vertical raster shift adjustment.
2. Initial static convergence.
3. Setting the purity.
4. Final static convergence.
WHEN THE CRT OR THE YOKE IS REPLACED
VOLTAGE
7.5 ± 0.6V
9.0V ± 0.5V
5.0V ± 0.3V
2.5V ± 0.2
3.3V ± 0.2V
VOLTAGE
144.0 ±
1.5V
27.5 ± 2.0V
15.7 ± 1.5V
-16.0V ±
1.5V
16.5V ±
1.0V
-16.5V ±
1.0V
215V ±
5.0V
12V ± 0.5V
25