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Adjustment
Item
Test equipment | Test points
locations
Adjustment procedure
HVC
Voltmeter
TP-HV
. Set Ext Sync to Ext and supply a horizontal sync
Signal generator
signal input.
(Al-black signal)
, When the raster appears, reduce the Bright
control.
- Connect the voltmeter to TP-HV.
| . Adjust R612 (HVC) for 2.0 + 0.1 V.
H gain
Signal generator
DO5(H SIZE)
. At the service menu, set DOS to adjust the
(NTSC)
(Resolution or
D21(H SIZE)
horizontal size to 95 %.
crosshatch pattern)
D22(H SHIFT)
. Set the Scan Size to Under.
[SERVICE MENU] | 3 . Set 021 to 00.
Set D22 to 253.
. Return the Scan Size to normal.
H center
Signal generator
D15(H SHIFT)
- Adjust D15 to align the picture center with the
H gain
(Resolution or
D14(H SIZE)
CRT center.
(PAL)
crosshatch pattern)
{SERVICE MENU] j 2 . Adjust D14 to sei the horizontal size to 95 %.
V gain, V
Signal generator
DO3{V
. Check that the horizcntal line of the video signal
center, V
(Resolutton
LINEARITY)
center is at the CRT center (if shifted, adjust
linearity
pattern)
D01(V SIZE)
R416).
(NTSC)
D17(V SIZE)
. Adjust the picture vertical linearity (scan ratio)
D19(V
with DOs.
LINEARITY)
. Adjust the screen top and bottom edges to 95 %
D18(V SHIFT)
with DOT.
[SERVICE MENU}
- Set the Scan Size to Under.
. Set D17 to 280.
. Set D19 to 00.
. Set D18 to 00.
. Retum the Scan Size to normal.
V gain, V
Signal generator
D11(V SHIFT)
Adjust D11 to align the video signal center with
center, V
(Resolution pattern)
D12A(v
the CRT center.
linearity
LINEARITY)
Adjust the picture vertical linearity (scan ratio)
{PAL)
D10(V SIZE)
with D12.
[SERVICE MENU] j 3 . Adjust the screen top and bottom edges to 95 %
with D10.
Side
Signal generator
D07(PIN AMP)
1. Adjust side pincushion with DO7 so that A = B.
pincushion
(Crosshatch
D23(PIN AMP)
2. Set the Scan Size to Under.
(NTSC/PAL)
| NTSC/PAL)
D16(PIN AMP)
3. Adjust side pincushion with D23 so that A = B.
[SERVICE MENU] } 4. Supply a PAL crosshatch input.
5. Return the Scan Size to normal.
6. Adjust side pincushion with D16 so that A = B.
Za
Nl
+
:
36 (No.51042)
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