JVC AV-56P776 Service Manual page 44

4.6.3.4 CONVERGENCE ADJUSTMENT
Measuring
Item
instrument
CONVERGENCE Signal
PHASE generator
check
Remote
control unit
Item No.
CPA04
CPA05
CPA06
CPA07
CPA08
CPA09
CPA10
CPA11
OVERALL Signal
CONVERGENCE generator
(LINE)
check Remote
control unit
Item No. Item name
CCA01 H CENT
CCA02 H SIZE
CCA03 H LIN
CCA04 H SKEW
CCA05 EW PIN
CCA06 H BOW
CCA07 V CENT
CCA08 V SKEW
CCA09 V SIZE
CCA10 V. LIN
CCA11 V. KEY
CCA12 TB PIN
Test point Adjustment part
[6.CONVER A]
CPA04 : TPOV OFST
CPA05 : FINEP
CPA06 : STARTLIN A
CPA07 : STARTLIN B
CPA08 : CAU H2
CPA09 : COARS OFST
CPA10 : V1OFSTA
CPA11 : V1OFSTB
Initial setting
Item name
value
TPOV OFST 0
FINEP 1245
STARTLIN A 56
STARTLIN B -1
CAU H2 0
COARS OFST -50
V1OFSTA 7
V1OFSTB 0
Table1
[ 6.CONVER A ]
CPA01 : FINE OFF
CCA01 : H CENT
CCA02 : H SIZE
CCA03 : H LIN
CCA04 : H SKEW
CCA05 : EW PIN
CCA06 : H BOW
CCA07 : V CENT
CCA08 : V SKEW
CCA09 : V SIZE
CCA10 : V LIN
CCA11 : V KEY
CCA12 :TB PIN
Initial setting value
GREEN RED
0 -246
-27 -54
-96 240
0 0
-91 -26
0 -30
-19 8
0 0
-108 -77
15 12
0 114
280 153
Fig.Table2
NOTE:
Be sure to make it the value of Table1. Supposing data
differs, correct to the value of Table1.
When data is corrected (when the [MUTING] key is
pushed), it is necessary to perform an AUTO
CONVERGENCE PRESET, after a convergence
adjusts exactly.
(1) Receive NTSC crosshatch signal.
(2) Select 6.CONVER A from SERVICE MENU.
(3) Select < CPA > item with [INPUT] key.
(4) Check and set data that < CPA04 > to < CPA11> are
same value as table1.
(5) Press [MUTING] key to memorize the set values.
NOTE:
Be sure to make it the value of Table2. Supposing data
differs, correct to the value of Table2.
When data is corrected (when the [MUTING] key is
pressed), it is necessary to perform an AUTO
CONVERGENCE PRESET, after a convergence
adjusts exactly.
(1) Receive NTSC crosshatch signal.
(2) Select 6.CONVER A from SERVICE MENU.
(3) Select < CPA01 > (FINE OFF).
(4) Change the data 0 to1. (Clear the fine adjustment
data)
(5) Select < CCA > item with [INPUT] key. Then a green
crosshatch pattern for adjustment will be displayed
on the screen.
(6) Check and set data < CCA01 > to < CCA12 > are
same value as table2.
BLUE
(7) Press [SLEEP TIMER] key to change the adjusting
395
color to red and blue.
16
NOTE:
-348
Press [OK] key to change the display colors.
-10
Whenever [OK] key is pressed, the menu will
-17
sequence in this order: "2 colors (adjusting
color+green)" → "3 colors (RGB)"
21
(8) Press [MUTING] key to memorize the set values.
12
(9) Select < CPA01 >.
4
(10) Change the < CPA01 > 1 to 0.
-105
(11) Press [MUTING] key to memorize the set values.
8
-77
230
Description
(No.YA318)1-43