JVC AV-29V314, Service Manual

Page: 22 / 33

1-22 (No.YA139)
4.7.6 DEFLECTION CIRCUIT ADJUSTMENTS
• The setting (adjustment) using the remote control unit is made on the basis of the initial setting values.
• The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
• When performing deflection circuit adjustment, adjusts PAL signal (fv: 50 Hz) in 4:3 mode and 16:9 mode respectively, and adjust
the NTSC signal (fv: 60 Hz) similarly.
Note:
Proceed to the following adjustment after having completed the adjustments of SUB BRIGHT and SUB PICTURE.
„ 4. DEF
NOTE: The value with an asterisk * is variable for adjustment. The values in parenthesis ( ) are fixed values.
„ COMPRESS: OFF (4:3)
Adjustment item
Variable range Initial setting value
4:3
50Hz
Others
4:3 COMPRESS (16:9)
50Hz 60Hz 50Hz 60Hz
1. V-SHIFT 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
2. V-SLOPE 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
3. V-SIZE 0 ~ 63 -32 ~ +31 +15* 0* -4* -2*
4. H-CENT 0 ~ 63 -32 ~ +31 +35* 0* 0* 0*
5. H-SIZE 0 ~ 63 -32 ~ +31 +45* 0* 0* 0*
6. TRAPEZ 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
7. EW-PIN 0 ~ 63 -32 ~ +31 -12* 0* 0* 0*
8. COR-UP 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
9. COR-LO 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
10. ANGLE 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
11. BOW 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
12. V-S.CR 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
13. V-LIN 0 ~ 63 -32 ~ +31 0* 0* 0* 0*
14. V-ZOOM 0 ~ 63 -32 ~ +31 (+25) 0 -23* +3*
15. V-SCROLL 0 ~ 63 -32 ~ +31 (+32) (0) (0) (0)
Item
Measuring
instrument
Test point Adjustment part Description
V. SLOPE
adjustment Signal
generator
Remote
control unit
[4. DEF]
2. V-SLOPE - PAL V. SLOPE -
(1) Receive a PAL circle pattern signal of vertical
frequency 50Hz.
(2) Select 4. DEF from the SERVICE MENU.
(3) Select 2. V-SLOPE .
(4) Set the initial setting value of 2. V-SLOPE .
(5) Adjust 2. V-SLOPE to make " A = B ".
(6) Press the [DISPLAY] key twice to return to
SERVICE MENU screen.
- NTSC V. SLOPE -
(1) Receive a NTSC circle pattern signal of vertical
frequency 60Hz.
(2) Make similar adjustment of NTSC V-SLOPE in the
same way as for "PAL V-SLOPE".
V. POSITION
adjustment Signal
generator
Remote
control unit
[4. DEF]
1. V-SHIFT - PAL V. POSITION -
(1) Receive a PAL circle pattern signal of vertical
frequency 50Hz.
(2) Select 1. V-SHIFT .
(3) Set the initial setting value of 1. V-SHIFT .
(4) Adjust 1. V-SHIFT to make " A = B ".
- NTSC V. POSITION -
(1) Receive a NTSC circle pattern signal of vertical
frequency 60Hz.
(2) Make similar adjustment of NTSC V. POSITION in
the same way as for "PAL V. POSITION".
B
A
Blanking
line