JVC AV-48P777/H Service Manual page 39

4.7.3.4 CONVERGENCE ADJUSTMENT [3. Conver Service]
Measuring
Item
instrument
CONVERGENCE Remote
PHASE control unit
check
OVERALL Remote
CONVERGENCE control unit
(LINE)
check
OVERALL Remote
CONVERGENCE control unit
(POINT)
adjustment
Test point Adjustment part
[1.Coarse Adjust]
CPA02 : TPOPH
CPA03 : TPOPV LINE
CPA04 : TPOPV OFST
CPA05 : FINEP
CPA06 : STARTLIN A
CPA07 : STARTLIN B
CPA08 : COARS PHAS
CPA09 : COARS OFST
CPA10 : V1OFSTA
CPA11 : V1OFSTB
[ 1.Coarse Adjust ]
CPA01 : FINE OFF
CCA01 : C H CENT
CCA02 : C H SIZE
CCA03 : C H LIN
CCA04 : C H SKEW
CCA05 : C EW PIN
CCA06 : C H BOW
CCA07 : C V CENT
CCA08 : C V SKEW
CCA09 : C V SIZE
CCA10 : C V LIN
CCA11 : C V KEY
CCA12 : C TB PIN
[ 2. Fine Adjust ]
Cursor Point of adjustment
Description
(1) Enter Conver Service [1. Coarse Adjust].
(2) Select <CPA> item with [INPUT] key.
(3) Check and set data that <CPA02> to <CPA11> are
same as the initial setting values.
(4) Press [MUTING] key to memorize the set values.
(1) Enter Conver Service [1. Coarse Adjust].
(2) Select <CPA01> (FINE OFF).
(3) Change the data 0 to1. (Clear the fine adjustment
data)
(4) Select <CCA> item with [INPUT] key. Then a green
crosshatch pattern for adjustment will be displayed
on the screen.
(5) Check and set data <CCA01> to <CCA12> are
same as the initial setting values.
(6) Press [SLEEP TIMER] key to change the adjusting
color to red and blue.
(7) In the same manner, check and set data for red and
blue patterns.
(8) Press [MUTING] key to memorize the set values.
(9) Select <CPA01>.
(10) Change the <CPA01> 1 to 0.
(11) Press [MUTING] key to memorize the set values.
NOTE:
Perform this adjustment after performing OVERALL
CONVERGENCE (LINE) check.
(1) Enter Conver Service [2. Fine Adjust]. Then appear
green crosshatch pattern for adjustment.
(2) Press [ 2 ] / [ 4 ] / [ 5 ] / [ 6 ] / [ 8 ] keys respectively,
move the cursor to the adjusting point.
(3) Press [CH+] / [CH-] / [VOL+] / [VOL-] keys, adjust the
position of the adjusting point.
(4) Press [SLEEP TIMER] key to select the red and blue
crosshatch patterns,
convergence adjustments so that they align with the
adjusting points of the green crosshatch pattern
(reference color).
(5) Press [OK] key to change the display colors to 3
colors from 2 colors (adjusting color + green) and
make sure that the convergence has been aligned
with each other.
(6) Press [MUTING] key to memorize the set values.
respectively, and make
(No.YA455)1-39