JVC AV29BF10ENS Service Manual page 14

AV29BF10ENS
AV29BF10EPS
AV29BF10EES
Measuring
Item
instruments
VERTICAL Signal
ZOOM gener ator
Ad justment
VERTICAL Signal
SCROLL gener ator
Ad justment
4 : 3 Signal
HORIZONTAL
gener ator
SHIFT
Ad justment
VERTICAL Signal
SLOPE gener ator
Ad justment
VERTICAL Signal
AM P LIT UDE
gener ator
Ad justment
14
Test point Ad justment part
Ad just 10 ( 4 : 3 )
Ad just 24 ( 16 : 9 )
Ad just 11 ( 4 : 3 )
Ad just 25 ( 16 : 9 )
Ad just 12 ( 4 : 3 )
Ad just 26 ( 16 : 9 )
Ad just 13 ( 4 : 3 )
Ad just 27 ( 16 : 9 )
Ad just 14 ( 4 : 3 )
Ad just 28 ( 16 : 9 )
No. 51936
Description
1. Receive a PAL circle test pattern.
2. Set < 4 : 3 aspect m od e >.
3. Select < ADJUST 10 > from SERVICE MENU.
4. Change vertic al zoom till you see the upper and lower limit
of the circle as clos e to the upper and lower limit of the
picture tube as possible.
5. Set < 16 : 9 aspect mode >.
6. Adjusts with the step whic h is the same above from 3 to 4
about the 16 : 9 aspect mode, too.
1. Receive a PAL circle test pattern.
2. Set < 4 : 3 aspect m od e >.
3. Select < ADJUST 11 > from SERVICE MENU.
4. Change vertical scroll till you see the circle exactly in the
middle of the screen.
5. Set < 16 : 9 aspect mode >.
6. Adjusts with the step which is the s ame above from 3 to 4
about the 16 : 9 aspect mode, too.
1. Receive a RED PURITY test pattern.
2. Set < 4 : 3 aspect m od e >.
3. Select < ADJUST 12 > from SERVICE MENU.
4. Change horizontal shift till the picture is horizontally
centered. Check whether this adjustment is correct after
completing Service Mode Adjustment.
5. Set < 16 : 9 aspect mode >.
6. Adjusts with the s tep whic h is the same above from 3 to 4
about the 16 : 9 aspect mode, too.
1. Receive a CROSS-HATCH signal.
2. Set < 4 : 3 aspect m od e >.
3. Select < ADJUST 13 > from SERVICE MENU.
4. Change vertic al slope till the size of squares on both the
upper and lower part of tes t pattern bec ome equal to the
squares laying on the vertical center of the test pattern.
5. Check and readjust VERTICAL SLOPE item if the
adjustment becomes improper after some other geometric
adjustments are done.
6. Set < 16 : 9 aspect mode >.
7. Adjusts with the step whic h is the same above from 3 to 5
about the 16 : 9 aspect mode, too.
1. Receive a PAL tes t pattern signal.
2. Set < 4 : 3 aspect m od e >.
3. Select < ADJUST 14 > from SERVICE MENU.
4. Change vertical s lope till horizontal black lines on both the
upper and lower part of the test pattern bec ome very close
to the upper and lower horizontal sides of picture tube and
nearly about to disappear.
5. Check and readjust VERTICAL AMPLITUDE item if the
adjustment becomes improper after some other geometric
adjustments are done.
6. Set < 16 : 9 aspect mode >.
7. Adjusts with the step whic h is the same above from 3 to 5
about the 16 : 9 aspect mode, too.