JVC AV-2586ME Service Manual page 24

Measuring
Item
instrument
V.LINEARITY Signal
generator
Remote
control unit
CORNER PIN Signal
generator
Remote
control unit
H. PARALLEL Signal
generator
Remote
control unit
1-24 (No.YA444)
Test point Adjustment part
[4. DEF]
12. V-S. CR
13. V-LIN
Top
Centre
Bottom
[4. DEF]
8. COR-UP
9. COR-LO
Straigt
[4.DEF]
10. ANGLE
Parallel
Description
PAL V. LINEARITY
(1) Receive a PAL crosshatch signal.
(2) Select 4. DEF from the SERVICE MODE.
(3) Select <12. V-S.CR>.
(4) Set the initial setting value of <12. V-S. CR>.
(5) Select <13. V-LIN>.
(6) Set the initial setting value of <13. V-LIN>.
(7) Adjust <12. V-S. CR> and <13. V-LIN> so that the
spaces of each line on TOP, CENTRE and
BOTTOM become uniform.
(8) Press the [OK] key to memorize the set values.
NTSC V. LINEARITY
(1) Receive a NTSC crosshatch signal.
(2) Follow the same step 2 to 8 as in PAL V-S. CR.
PAL CORNER PIN
(1) Receive a PAL crosshatch signal.
(2) Select 4. DEF from the SERVICE MODE.
(3) Select <8. COR-UP>.
(4) Set the initial setting value of <8. COR-UP>.
(5) Select <9. COR-LO>.
(6) Set the initial setting value of <9. COR-LO>.
(7) Adjust <8. COR-UP> and <9. COR-LO> so that the
vertical lines at the four corners on the screen are
straight.
(8) Press the [OK] key to memorize the set values.
NTSC CORNER PIN
(1) Receive a NTSC crosshatch signal.
(2) Follow the same step 2 to 8 as in PAL CORNER.
PAL H. PARALLEL
(1) Receive a PAL crosshatch signal.
(2) Select 4. DEF from the SERVICE MODE.
(3) Select <10. ANGLE>.
(4) Set the initial setting value of <10. ANGLE>.
(5) Adjust <10. ANGLE> to optimize the trapezium
distortion at the centre of the screen.
(6) Press the [OK] key to memorize the set values.
NTSC H. PARALLEL
(1) Receive a NTSC crosshatch signal.
(2) Follow the same step 2 to 6 as in PAL H.
PARALLEL.